# primarily for its side effect of removing duplicates.
AM_CPPFLAGS += $(foreach d,$(sort $(dir $(libNetworkManager_la_SOURCES))),-I$(top_srcdir)/src/$d)
+noinst_LTLIBRARIES = \
+ libNetworkManager.la \
+ libnm-iface-helper.la \
+ libsystemd-nm.la
+
+######################
+# libsystemd-nm
+######################
+
+SYSTEMD_NM_CFLAGS_PATHS = \
+ -I$(top_srcdir)/src/systemd/src/systemd \
+ -I$(top_srcdir)/src/systemd/src/libsystemd-network \
+ -I$(top_srcdir)/src/systemd/src/libsystemd/sd-event \
+ -I$(top_srcdir)/src/systemd/src/basic \
+ -I$(top_srcdir)/src/systemd
+
+libsystemd_nm_la_SOURCES = \
+ systemd/nm-sd-adapt.c \
+ systemd/nm-sd-adapt.h \
++ systemd/src/basic/alloc-util.c \
++ systemd/src/basic/alloc-util.h \
+ systemd/src/basic/async.h \
++ systemd/src/basic/escape.c \
++ systemd/src/basic/escape.h \
++ systemd/src/basic/fd-util.c \
++ systemd/src/basic/fd-util.h \
+ systemd/src/basic/fileio.c \
+ systemd/src/basic/fileio.h \
++ systemd/src/basic/fs-util.c \
++ systemd/src/basic/fs-util.h \
+ systemd/src/basic/hashmap.c \
+ systemd/src/basic/hashmap.h \
++ systemd/src/basic/hexdecoct.c \
++ systemd/src/basic/hexdecoct.h \
+ systemd/src/basic/hostname-util.c \
+ systemd/src/basic/hostname-util.h \
+ systemd/src/basic/in-addr-util.c \
+ systemd/src/basic/in-addr-util.h \
++ systemd/src/basic/io-util.c \
++ systemd/src/basic/io-util.h \
+ systemd/src/basic/list.h \
+ systemd/src/basic/log.h \
+ systemd/src/basic/macro.h \
+ systemd/src/basic/mempool.c \
+ systemd/src/basic/mempool.h \
++ systemd/src/basic/parse-util.c \
++ systemd/src/basic/parse-util.h \
+ systemd/src/basic/path-util.c \
+ systemd/src/basic/path-util.h \
+ systemd/src/basic/prioq.c \
+ systemd/src/basic/prioq.h \
+ systemd/src/basic/random-util.c \
+ systemd/src/basic/random-util.h \
+ systemd/src/basic/refcnt.h \
+ systemd/src/basic/siphash24.c \
+ systemd/src/basic/siphash24.h \
+ systemd/src/basic/set.h \
+ systemd/src/basic/socket-util.h \
+ systemd/src/basic/sparse-endian.h \
++ systemd/src/basic/string-table.c \
++ systemd/src/basic/string-table.h \
++ systemd/src/basic/string-util.c \
++ systemd/src/basic/string-util.h \
+ systemd/src/basic/strv.c \
+ systemd/src/basic/strv.h \
+ systemd/src/basic/time-util.c \
+ systemd/src/basic/time-util.h \
++ systemd/src/basic/umask-util.h \
+ systemd/src/basic/unaligned.h \
+ systemd/src/basic/utf8.c \
+ systemd/src/basic/utf8.h \
+ systemd/src/basic/util.c \
+ systemd/src/basic/util.h \
+ systemd/src/libsystemd-network/arp-util.c \
+ systemd/src/libsystemd-network/arp-util.h \
+ systemd/src/libsystemd-network/dhcp-identifier.c \
+ systemd/src/libsystemd-network/dhcp-identifier.h \
+ systemd/src/libsystemd-network/dhcp-internal.h \
+ systemd/src/libsystemd-network/dhcp-lease-internal.h \
+ systemd/src/libsystemd-network/dhcp-network.c \
+ systemd/src/libsystemd-network/dhcp-option.c \
+ systemd/src/libsystemd-network/dhcp-packet.c \
+ systemd/src/libsystemd-network/dhcp-protocol.h \
+ systemd/src/libsystemd-network/dhcp6-internal.h \
+ systemd/src/libsystemd-network/dhcp6-lease-internal.h \
+ systemd/src/libsystemd-network/dhcp6-network.c \
+ systemd/src/libsystemd-network/dhcp6-option.c \
+ systemd/src/libsystemd-network/dhcp6-protocol.h \
+ systemd/src/libsystemd-network/lldp.h \
+ systemd/src/libsystemd-network/lldp-network.h \
+ systemd/src/libsystemd-network/lldp-network.c \
+ systemd/src/libsystemd-network/lldp-tlv.c \
+ systemd/src/libsystemd-network/lldp-tlv.h \
+ systemd/src/libsystemd-network/lldp-port.c \
+ systemd/src/libsystemd-network/lldp-port.h \
+ systemd/src/libsystemd-network/lldp-util.h \
+ systemd/src/libsystemd-network/lldp-internal.h \
+ systemd/src/libsystemd-network/lldp-internal.c \
+ systemd/src/libsystemd-network/network-internal.c \
+ systemd/src/libsystemd-network/network-internal.h \
+ systemd/src/libsystemd-network/sd-dhcp-client.c \
+ systemd/src/libsystemd-network/sd-dhcp-lease.c \
+ systemd/src/libsystemd-network/sd-dhcp6-client.c \
+ systemd/src/libsystemd-network/sd-dhcp6-lease.c \
+ systemd/src/libsystemd-network/sd-ipv4acd.c \
+ systemd/src/libsystemd-network/sd-ipv4ll.c \
+ systemd/src/libsystemd-network/sd-lldp.c \
+ systemd/src/libsystemd/sd-id128/sd-id128.c \
+ systemd/src/libsystemd/sd-event/event-util.h \
+ systemd/src/shared/dns-domain.c \
+ systemd/src/shared/dns-domain.h \
+ systemd/src/systemd/_sd-common.h \
+ systemd/src/systemd/sd-dhcp-client.h \
+ systemd/src/systemd/sd-dhcp-lease.h \
+ systemd/src/systemd/sd-dhcp6-client.h \
+ systemd/src/systemd/sd-dhcp6-lease.h \
+ systemd/src/systemd/sd-lldp.h \
+ systemd/src/systemd/sd-event.h \
+ systemd/src/systemd/sd-icmp6-nd.h \
+ systemd/src/systemd/sd-id128.h \
+ systemd/src/systemd/sd-ipv4acd.h \
+ systemd/src/systemd/sd-ipv4ll.h
+
+libsystemd_nm_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_builddir)/include \
+ -I$(top_srcdir)/libnm-core \
+ -I$(top_builddir)/libnm-core \
+ $(SYSTEMD_NM_CFLAGS_PATHS) \
+ -I$(top_srcdir)/src/systemd/src/shared \
+ -DNETWORKMANAGER_COMPILATION=NM_NETWORKMANAGER_COMPILATION_SYSTEMD \
+ $(GLIB_CFLAGS)
+
+libsystemd_nm_la_LIBADD = \
+ $(GLIB_LIBS)
+
###########################################
# NetworkManager
###########################################
--- /dev/null
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
+/* This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Copyright (C) 2014 Red Hat, Inc.
+ */
+
+#include "config.h"
+
+#include <string.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <ctype.h>
+#include <net/if_arp.h>
+
+#include "nm-default.h"
+#include "nm-dhcp-systemd.h"
+#include "nm-utils.h"
+#include "nm-dhcp-utils.h"
+#include "NetworkManagerUtils.h"
+#include "nm-platform.h"
+
+#include "sd-dhcp-client.h"
+#include "sd-dhcp6-client.h"
+#include "dhcp-protocol.h"
+#include "dhcp-lease-internal.h"
+#include "dhcp6-protocol.h"
+#include "dhcp6-lease-internal.h"
+
+G_DEFINE_TYPE (NMDhcpSystemd, nm_dhcp_systemd, NM_TYPE_DHCP_CLIENT)
+
+#define NM_DHCP_SYSTEMD_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_DHCP_SYSTEMD, NMDhcpSystemdPrivate))
+
+typedef struct {
+ struct sd_dhcp_client *client4;
+ struct sd_dhcp6_client *client6;
+ char *lease_file;
+
+ guint timeout_id;
+ guint request_count;
+
+ gboolean privacy;
+} NMDhcpSystemdPrivate;
+
+/************************************************************/
+
+#define DHCP_OPTION_NIS_DOMAIN 40
+#define DHCP_OPTION_NIS_SERVERS 41
+#define DHCP_OPTION_DOMAIN_SEARCH 119
+#define DHCP_OPTION_RFC3442_ROUTES 121
+#define DHCP_OPTION_MS_ROUTES 249
+#define DHCP_OPTION_WPAD 252
+
+/* Internal values */
+#define DHCP_OPTION_IP_ADDRESS 1024
+#define DHCP_OPTION_EXPIRY 1025
+#define DHCP6_OPTION_IP_ADDRESS 1026
+#define DHCP6_OPTION_PREFIXLEN 1027
+#define DHCP6_OPTION_PREFERRED_LIFE 1028
+#define DHCP6_OPTION_MAX_LIFE 1029
+#define DHCP6_OPTION_STARTS 1030
+#define DHCP6_OPTION_LIFE_STARTS 1031
+#define DHCP6_OPTION_RENEW 1032
+#define DHCP6_OPTION_REBIND 1033
+#define DHCP6_OPTION_IAID 1034
+
+typedef struct {
+ guint num;
+ const char *name;
+ gboolean include;
+} ReqOption;
+
+#define REQPREFIX "requested_"
+
+static const ReqOption dhcp4_requests[] = {
+ { DHCP_OPTION_SUBNET_MASK, REQPREFIX "subnet_mask", TRUE },
+ { DHCP_OPTION_TIME_OFFSET, REQPREFIX "time_offset", TRUE },
+ { DHCP_OPTION_ROUTER, REQPREFIX "routers", TRUE },
+ { DHCP_OPTION_DOMAIN_NAME_SERVER, REQPREFIX "domain_name_servers", TRUE },
+ { DHCP_OPTION_HOST_NAME, REQPREFIX "host_name", TRUE },
+ { DHCP_OPTION_DOMAIN_NAME, REQPREFIX "domain_name", TRUE },
+ { DHCP_OPTION_INTERFACE_MTU, REQPREFIX "interface_mtu", TRUE },
+ { DHCP_OPTION_BROADCAST, REQPREFIX "broadcast_address", TRUE },
+ { DHCP_OPTION_STATIC_ROUTE, REQPREFIX "static_routes", TRUE },
+ { DHCP_OPTION_NIS_DOMAIN, REQPREFIX "nis_domain", TRUE },
+ { DHCP_OPTION_NIS_SERVERS, REQPREFIX "nis_servers", TRUE },
+ { DHCP_OPTION_NTP_SERVER, REQPREFIX "ntp_servers", TRUE },
+ { DHCP_OPTION_SERVER_IDENTIFIER, REQPREFIX "dhcp_server_identifier", TRUE },
+ { DHCP_OPTION_DOMAIN_SEARCH, REQPREFIX "domain_search", TRUE },
+ { DHCP_OPTION_CLASSLESS_STATIC_ROUTE, REQPREFIX "rfc3442_classless_static_routes", TRUE },
+ { DHCP_OPTION_MS_ROUTES, REQPREFIX "ms_classless_static_routes", TRUE },
+ { DHCP_OPTION_WPAD, REQPREFIX "wpad", TRUE },
+
+ /* Internal values */
+ { DHCP_OPTION_IP_ADDRESS_LEASE_TIME, REQPREFIX "expiry", FALSE },
+ { DHCP_OPTION_CLIENT_IDENTIFIER, REQPREFIX "dhcp_client_identifier", FALSE },
+ { DHCP_OPTION_IP_ADDRESS, REQPREFIX "ip_address", FALSE },
+ { 0, NULL, FALSE }
+};
+
+static const ReqOption dhcp6_requests[] = {
+ { DHCP6_OPTION_CLIENTID, REQPREFIX "dhcp6_client_id", TRUE },
+
+ /* Don't request server ID by default; some servers don't reply to
+ * Information Requests that request the Server ID.
+ */
+ { DHCP6_OPTION_SERVERID, REQPREFIX "dhcp6_server_id", FALSE },
+
+ { DHCP6_OPTION_DNS_SERVERS, REQPREFIX "dhcp6_name_servers", TRUE },
+ { DHCP6_OPTION_DOMAIN_LIST, REQPREFIX "dhcp6_domain_search", TRUE },
+ { DHCP6_OPTION_SNTP_SERVERS, REQPREFIX "dhcp6_sntp_servers", TRUE },
+
+ /* Internal values */
+ { DHCP6_OPTION_IP_ADDRESS, REQPREFIX "ip6_address", FALSE },
+ { DHCP6_OPTION_PREFIXLEN, REQPREFIX "ip6_prefixlen", FALSE },
+ { DHCP6_OPTION_PREFERRED_LIFE, REQPREFIX "preferred_life", FALSE },
+ { DHCP6_OPTION_MAX_LIFE, REQPREFIX "max_life", FALSE },
+ { DHCP6_OPTION_STARTS, REQPREFIX "starts", FALSE },
+ { DHCP6_OPTION_LIFE_STARTS, REQPREFIX "life_starts", FALSE },
+ { DHCP6_OPTION_RENEW, REQPREFIX "renew", FALSE },
+ { DHCP6_OPTION_REBIND, REQPREFIX "rebind", FALSE },
+ { DHCP6_OPTION_IAID, REQPREFIX "iaid", FALSE },
+ { 0, NULL, FALSE }
+};
+
+static void
+take_option (GHashTable *options,
+ const ReqOption *requests,
+ guint option,
+ char *value)
+{
+ guint i;
+
+ g_return_if_fail (value != NULL);
+
+ for (i = 0; requests[i].name; i++) {
+ if (requests[i].num == option) {
+ g_hash_table_insert (options,
+ (gpointer) (requests[i].name + STRLEN (REQPREFIX)),
+ value);
+ break;
+ }
+ }
+ /* Option should always be found */
+ g_assert (requests[i].name);
+}
+
+static void
+add_option (GHashTable *options, const ReqOption *requests, guint option, const char *value)
+{
+ if (options)
+ take_option (options, requests, option, g_strdup (value));
+}
+
+static void
+add_option_u32 (GHashTable *options, const ReqOption *requests, guint option, guint32 value)
+{
+ if (options)
+ take_option (options, requests, option, g_strdup_printf ("%u", value));
+}
+
+static void
+add_option_u64 (GHashTable *options, const ReqOption *requests, guint option, guint64 value)
+{
+ if (options)
+ take_option (options, requests, option, g_strdup_printf ("%" G_GUINT64_FORMAT, value));
+}
+
+static void
+add_requests_to_options (GHashTable *options, const ReqOption *requests)
+{
+ guint i;
+
+ for (i = 0; options && requests[i].name; i++) {
+ if (requests[i].include)
+ g_hash_table_insert (options, (gpointer) requests[i].name, g_strdup ("1"));
+ }
+}
+
+#define LOG_LEASE(domain, ...) \
+G_STMT_START { \
+ if (log_lease) { \
+ nm_log (LOGL_INFO, (domain), __VA_ARGS__); \
+ } \
+} G_STMT_END
+
+static NMIP4Config *
+lease_to_ip4_config (const char *iface,
+ int ifindex,
+ sd_dhcp_lease *lease,
+ GHashTable *options,
+ guint32 default_priority,
+ gboolean log_lease,
+ GError **error)
+{
+ NMIP4Config *ip4_config = NULL;
+ struct in_addr tmp_addr;
+ const struct in_addr *addr_list;
+ char buf[INET_ADDRSTRLEN];
+ const char *str;
+ guint32 lifetime = 0, i;
+ NMPlatformIP4Address address;
+ GString *l;
+ struct sd_dhcp_route *routes;
+ guint16 mtu;
+ int r, num;
+ guint64 end_time;
+ const void *data;
+ gsize data_len;
+ gboolean metered = FALSE;
+
+ g_return_val_if_fail (lease != NULL, NULL);
+
+ ip4_config = nm_ip4_config_new (ifindex);
+
+ /* Address */
+ sd_dhcp_lease_get_address (lease, &tmp_addr);
+ memset (&address, 0, sizeof (address));
+ address.address = tmp_addr.s_addr;
+ address.peer_address = tmp_addr.s_addr;
+ str = nm_utils_inet4_ntop (tmp_addr.s_addr, NULL);
+ LOG_LEASE (LOGD_DHCP4, " address %s", str);
+ add_option (options, dhcp4_requests, DHCP_OPTION_IP_ADDRESS, str);
+
+ /* Prefix/netmask */
+ sd_dhcp_lease_get_netmask (lease, &tmp_addr);
+ address.plen = nm_utils_ip4_netmask_to_prefix (tmp_addr.s_addr);
+ LOG_LEASE (LOGD_DHCP4, " plen %d", address.plen);
+ add_option (options,
+ dhcp4_requests,
+ DHCP_OPTION_SUBNET_MASK,
+ nm_utils_inet4_ntop (tmp_addr.s_addr, NULL));
+
+ /* Lease time */
+ sd_dhcp_lease_get_lifetime (lease, &lifetime);
+ address.timestamp = nm_utils_get_monotonic_timestamp_s ();
+ address.lifetime = address.preferred = lifetime;
+ end_time = (guint64) time (NULL) + lifetime;
+ LOG_LEASE (LOGD_DHCP4, " expires in %" G_GUINT32_FORMAT " seconds", lifetime);
+ add_option_u64 (options,
+ dhcp4_requests,
+ DHCP_OPTION_IP_ADDRESS_LEASE_TIME,
+ end_time);
+
+ address.source = NM_IP_CONFIG_SOURCE_DHCP;
+ nm_ip4_config_add_address (ip4_config, &address);
+
+ /* Gateway */
+ r = sd_dhcp_lease_get_router (lease, &tmp_addr);
+ if (r == 0) {
+ nm_ip4_config_set_gateway (ip4_config, tmp_addr.s_addr);
+ str = nm_utils_inet4_ntop (tmp_addr.s_addr, NULL);
+ LOG_LEASE (LOGD_DHCP4, " gateway %s", str);
+ add_option (options, dhcp4_requests, DHCP_OPTION_ROUTER, str);
+ }
+
+ /* DNS Servers */
+ num = sd_dhcp_lease_get_dns (lease, &addr_list);
+ if (num > 0) {
+ l = g_string_sized_new (30);
+ for (i = 0; i < num; i++) {
+ if (addr_list[i].s_addr) {
+ nm_ip4_config_add_nameserver (ip4_config, addr_list[i].s_addr);
+ str = nm_utils_inet4_ntop (addr_list[i].s_addr, NULL);
+ LOG_LEASE (LOGD_DHCP4, " nameserver '%s'", str);
+ g_string_append_printf (l, "%s%s", l->len ? " " : "", str);
+ }
+ }
+ if (l->len)
+ add_option (options, dhcp4_requests, DHCP_OPTION_DOMAIN_NAME_SERVER, l->str);
+ g_string_free (l, TRUE);
+ }
+
+ /* Domain Name */
+ r = sd_dhcp_lease_get_domainname (lease, &str);
+ if (r == 0) {
+ /* Multiple domains sometimes stuffed into the option */
+ char **domains = g_strsplit (str, " ", 0);
+ char **s;
+
+ for (s = domains; *s; s++) {
+ LOG_LEASE (LOGD_DHCP4, " domain name '%s'", *s);
+ nm_ip4_config_add_domain (ip4_config, *s);
+ }
+ g_strfreev (domains);
+ add_option (options, dhcp4_requests, DHCP_OPTION_DOMAIN_NAME, str);
+ }
+
+ /* Hostname */
+ r = sd_dhcp_lease_get_hostname (lease, &str);
+ if (r == 0) {
+ LOG_LEASE (LOGD_DHCP4, " hostname '%s'", str);
+ add_option (options, dhcp4_requests, DHCP_OPTION_HOST_NAME, str);
+ }
+
+ /* Routes */
+ num = sd_dhcp_lease_get_routes (lease, &routes);
+ if (num > 0) {
+ l = g_string_sized_new (30);
+ for (i = 0; i < num; i++) {
+ NMPlatformIP4Route route;
+ const char *gw_str;
+
+ memset (&route, 0, sizeof (route));
+ route.network = routes[i].dst_addr.s_addr;
+ route.plen = routes[i].dst_prefixlen;
+ route.gateway = routes[i].gw_addr.s_addr;
+ route.source = NM_IP_CONFIG_SOURCE_DHCP;
+ route.metric = default_priority;
+ nm_ip4_config_add_route (ip4_config, &route);
+
+ str = nm_utils_inet4_ntop (route.network, buf);
+ gw_str = nm_utils_inet4_ntop (route.gateway, NULL);
+ LOG_LEASE (LOGD_DHCP4, " static route %s/%d gw %s", str, route.plen, gw_str);
+
+ g_string_append_printf (l, "%s%s/%d %s", l->len ? " " : "", str, route.plen, gw_str);
+ }
+ add_option (options, dhcp4_requests, DHCP_OPTION_RFC3442_ROUTES, l->str);
+ g_string_free (l, TRUE);
+ }
+
+ /* MTU */
+ r = sd_dhcp_lease_get_mtu (lease, &mtu);
+ if (r == 0 && mtu) {
+ nm_ip4_config_set_mtu (ip4_config, mtu, NM_IP_CONFIG_SOURCE_DHCP);
+ add_option_u32 (options, dhcp4_requests, DHCP_OPTION_INTERFACE_MTU, mtu);
+ LOG_LEASE (LOGD_DHCP4, " mtu %u", mtu);
+ }
+
+ /* NTP servers */
+ num = sd_dhcp_lease_get_ntp (lease, &addr_list);
+ if (num > 0) {
+ l = g_string_sized_new (30);
+ for (i = 0; i < num; i++) {
+ str = nm_utils_inet4_ntop (addr_list[i].s_addr, buf);
+ LOG_LEASE (LOGD_DHCP4, " ntp server '%s'", str);
+ g_string_append_printf (l, "%s%s", l->len ? " " : "", str);
+ }
+ add_option (options, dhcp4_requests, DHCP_OPTION_NTP_SERVER, l->str);
+ g_string_free (l, TRUE);
+ }
+
+ r = sd_dhcp_lease_get_vendor_specific (lease, &data, &data_len);
+ if (r >= 0)
+ metered = !!memmem (data, data_len, "ANDROID_METERED", STRLEN ("ANDROID_METERED"));
+ nm_ip4_config_set_metered (ip4_config, metered);
+
+ return ip4_config;
+}
+
+/************************************************************/
+
+static char *
+get_leasefile_path (const char *iface, const char *uuid, gboolean ipv6)
+{
+ return g_strdup_printf (NMSTATEDIR "/internal%s-%s-%s.lease",
+ ipv6 ? "6" : "",
+ uuid,
+ iface);
+}
+
+static GSList *
+nm_dhcp_systemd_get_lease_ip_configs (const char *iface,
+ int ifindex,
+ const char *uuid,
+ gboolean ipv6,
+ guint32 default_route_metric)
+{
+ GSList *leases = NULL;
+ gs_free char *path = NULL;
+ sd_dhcp_lease *lease = NULL;
+ NMIP4Config *ip4_config;
+ int r;
+
+ if (ipv6)
+ return NULL;
+
+ path = get_leasefile_path (iface, uuid, FALSE);
+ r = dhcp_lease_load (&lease, path);
+ if (r == 0 && lease) {
+ ip4_config = lease_to_ip4_config (iface, ifindex, lease, NULL, default_route_metric, FALSE, NULL);
+ if (ip4_config)
+ leases = g_slist_append (leases, ip4_config);
+ sd_dhcp_lease_unref (lease);
+ }
+
+ return leases;
+}
+
+/************************************************************/
+
+static void
+_save_client_id (NMDhcpSystemd *self,
+ uint8_t type,
+ const uint8_t *client_id,
+ size_t len)
+{
+ gs_unref_bytes GBytes *b = NULL;
+ gs_free char *buf = NULL;
+
+ g_return_if_fail (self != NULL);
+ g_return_if_fail (client_id != NULL);
+ g_return_if_fail (len > 0);
+
+ if (!nm_dhcp_client_get_client_id (NM_DHCP_CLIENT (self))) {
+ buf = g_malloc (len + 1);
+ buf[0] = type;
+ memcpy (buf + 1, client_id, len);
+ b = g_bytes_new (buf, len + 1);
+ nm_dhcp_client_set_client_id (NM_DHCP_CLIENT (self), b);
+ }
+}
+
+static void
+bound4_handle (NMDhcpSystemd *self)
+{
+ NMDhcpSystemdPrivate *priv = NM_DHCP_SYSTEMD_GET_PRIVATE (self);
+ const char *iface = nm_dhcp_client_get_iface (NM_DHCP_CLIENT (self));
+ sd_dhcp_lease *lease;
+ NMIP4Config *ip4_config;
+ GHashTable *options;
+ GError *error = NULL;
+ int r;
+
+ nm_log_dbg (LOGD_DHCP4, "(%s): lease available", iface);
+
+ r = sd_dhcp_client_get_lease (priv->client4, &lease);
+ if (r < 0 || !lease) {
+ nm_log_warn (LOGD_DHCP4, "(%s): no lease!", iface);
+ nm_dhcp_client_set_state (NM_DHCP_CLIENT (self), NM_DHCP_STATE_FAIL, NULL, NULL);
+ return;
+ }
+
+ options = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, g_free);
+ ip4_config = lease_to_ip4_config (iface,
+ nm_dhcp_client_get_ifindex (NM_DHCP_CLIENT (self)),
+ lease,
+ options,
+ nm_dhcp_client_get_priority (NM_DHCP_CLIENT (self)),
+ TRUE,
+ &error);
+ if (ip4_config) {
+ const uint8_t *client_id = NULL;
+ size_t client_id_len = 0;
+ uint8_t type = 0;
+
+ add_requests_to_options (options, dhcp4_requests);
+ dhcp_lease_save (lease, priv->lease_file);
+
+ sd_dhcp_client_get_client_id(priv->client4, &type, &client_id, &client_id_len);
+ if (client_id)
+ _save_client_id (self, type, client_id, client_id_len);
+
+ nm_dhcp_client_set_state (NM_DHCP_CLIENT (self),
+ NM_DHCP_STATE_BOUND,
+ G_OBJECT (ip4_config),
+ options);
+ } else {
+ nm_log_warn (LOGD_DHCP4, "(%s): %s", iface, error->message);
+ nm_dhcp_client_set_state (NM_DHCP_CLIENT (self), NM_DHCP_STATE_FAIL, NULL, NULL);
+ g_clear_error (&error);
+ }
+
+ g_hash_table_destroy (options);
+ g_clear_object (&ip4_config);
+}
+
+static void
+dhcp_event_cb (sd_dhcp_client *client, int event, gpointer user_data)
+{
+ NMDhcpSystemd *self = NM_DHCP_SYSTEMD (user_data);
+ NMDhcpSystemdPrivate *priv = NM_DHCP_SYSTEMD_GET_PRIVATE (self);
+ const char *iface = nm_dhcp_client_get_iface (NM_DHCP_CLIENT (self));
+
+ g_assert (priv->client4 == client);
+
+ nm_log_dbg (LOGD_DHCP4, "(%s): DHCPv4 client event %d", iface, event);
+
+ switch (event) {
+ case SD_DHCP_CLIENT_EVENT_EXPIRED:
+ nm_dhcp_client_set_state (NM_DHCP_CLIENT (user_data), NM_DHCP_STATE_EXPIRE, NULL, NULL);
+ break;
+ case SD_DHCP_CLIENT_EVENT_STOP:
+ nm_dhcp_client_set_state (NM_DHCP_CLIENT (user_data), NM_DHCP_STATE_FAIL, NULL, NULL);
+ break;
+ case SD_DHCP_CLIENT_EVENT_RENEW:
+ case SD_DHCP_CLIENT_EVENT_IP_CHANGE:
+ case SD_DHCP_CLIENT_EVENT_IP_ACQUIRE:
+ bound4_handle (self);
+ break;
+ default:
+ nm_log_warn (LOGD_DHCP4, "(%s): unhandled DHCP event %d", iface, event);
+ break;
+ }
+}
+
+static guint16
+get_arp_type (const GByteArray *hwaddr)
+{
+ if (hwaddr->len == ETH_ALEN)
+ return ARPHRD_ETHER;
+ else if (hwaddr->len == INFINIBAND_ALEN)
+ return ARPHRD_INFINIBAND;
+ else
+ g_assert_not_reached ();
+}
+
+static gboolean
+ip4_start (NMDhcpClient *client, const char *dhcp_anycast_addr, const char *last_ip4_address)
+{
+ NMDhcpSystemdPrivate *priv = NM_DHCP_SYSTEMD_GET_PRIVATE (client);
+ const char *iface = nm_dhcp_client_get_iface (client);
+ const GByteArray *hwaddr;
+ sd_dhcp_lease *lease = NULL;
+ GBytes *override_client_id;
+ const uint8_t *client_id = NULL;
+ size_t client_id_len = 0;
+ struct in_addr last_addr = { 0 };
+ const char *hostname;
+ int r, i;
+ gboolean success = FALSE;
+
+ g_assert (priv->client4 == NULL);
+ g_assert (priv->client6 == NULL);
+
+ g_free (priv->lease_file);
+ priv->lease_file = get_leasefile_path (iface, nm_dhcp_client_get_uuid (client), FALSE);
+
+ r = sd_dhcp_client_new (&priv->client4);
+ if (r < 0) {
+ nm_log_warn (LOGD_DHCP4, "(%s): failed to create DHCPv4 client (%d)", iface, r);
+ return FALSE;
+ }
+
+ r = sd_dhcp_client_attach_event (priv->client4, NULL, 0);
+ if (r < 0) {
+ nm_log_warn (LOGD_DHCP4, "(%s): failed to attach DHCP event (%d)", iface, r);
+ goto error;
+ }
+
+ hwaddr = nm_dhcp_client_get_hw_addr (client);
+ if (hwaddr) {
+ r = sd_dhcp_client_set_mac (priv->client4,
+ hwaddr->data,
+ hwaddr->len,
+ get_arp_type (hwaddr));
+ if (r < 0) {
+ nm_log_warn (LOGD_DHCP4, "(%s): failed to set DHCP MAC address (%d)", iface, r);
+ goto error;
+ }
+ }
+
+ r = sd_dhcp_client_set_index (priv->client4, nm_dhcp_client_get_ifindex (client));
+ if (r < 0) {
+ nm_log_warn (LOGD_DHCP4, "(%s): failed to set DHCP ifindex (%d)", iface, r);
+ goto error;
+ }
+
+ r = sd_dhcp_client_set_callback (priv->client4, dhcp_event_cb, client);
+ if (r < 0) {
+ nm_log_warn (LOGD_DHCP4, "(%s): failed to set DHCP callback (%d)", iface, r);
+ goto error;
+ }
+
+ r = sd_dhcp_client_set_request_broadcast (priv->client4, true);
+ if (r < 0) {
+ nm_log_warn (LOGD_DHCP4, "(%s): failed to set DHCP broadcast (%d)", iface, r);
+ goto error;
+ }
+
+ dhcp_lease_load (&lease, priv->lease_file);
+
+ if (last_ip4_address)
+ inet_pton (AF_INET, last_ip4_address, &last_addr);
+ else if (lease)
+ sd_dhcp_lease_get_address (lease, &last_addr);
+
+ if (last_addr.s_addr) {
+ r = sd_dhcp_client_set_request_address (priv->client4, &last_addr);
+ if (r < 0) {
+ nm_log_warn (LOGD_DHCP4, "(%s): failed to set last IPv4 address (%d)", iface, r);
+ goto error;
+ }
+ }
+
+ override_client_id = nm_dhcp_client_get_client_id (client);
+ if (override_client_id) {
+ client_id = g_bytes_get_data (override_client_id, &client_id_len);
+ g_assert (client_id && client_id_len);
+ sd_dhcp_client_set_client_id (priv->client4,
+ client_id[0],
+ client_id + 1,
+ client_id_len - 1);
+ } else if (lease) {
+ r = sd_dhcp_lease_get_client_id (lease, (const void **) &client_id, &client_id_len);
+ if (r == 0 && client_id_len) {
+ sd_dhcp_client_set_client_id (priv->client4,
+ client_id[0],
+ client_id + 1,
+ client_id_len - 1);
+ _save_client_id (NM_DHCP_SYSTEMD (client),
+ client_id[0],
+ client_id + 1,
+ client_id_len - 1);
+ }
+ }
+
+
+ /* Add requested options */
+ for (i = 0; dhcp4_requests[i].name; i++) {
+ if (dhcp4_requests[i].include)
+ sd_dhcp_client_set_request_option (priv->client4, dhcp4_requests[i].num);
+ }
+
+ hostname = nm_dhcp_client_get_hostname (client);
+ if (hostname) {
+ r = sd_dhcp_client_set_hostname (priv->client4, hostname);
+ if (r < 0) {
+ nm_log_warn (LOGD_DHCP4, "(%s): failed to set DHCP hostname (%d)", iface, r);
+ goto error;
+ }
+ }
+
+ r = sd_dhcp_client_start (priv->client4);
+ if (r < 0) {
+ nm_log_warn (LOGD_DHCP4, "(%s): failed to start DHCP (%d)", iface, r);
+ goto error;
+ }
+
+ success = TRUE;
+
+error:
+ sd_dhcp_lease_unref (lease);
+ if (!success)
+ priv->client4 = sd_dhcp_client_unref (priv->client4);
+ return success;
+}
+
+static void
+bound6_handle (NMDhcpSystemd *self)
+{
+ /* not yet supported... */
+ nm_log_warn (LOGD_DHCP6, "(%s): internal DHCP does not yet support DHCPv6",
+ nm_dhcp_client_get_iface (NM_DHCP_CLIENT (self)));
+ nm_dhcp_client_set_state (NM_DHCP_CLIENT (self), NM_DHCP_STATE_FAIL, NULL, NULL);
+}
+
+static void
+dhcp6_event_cb (sd_dhcp6_client *client, int event, gpointer user_data)
+{
+ NMDhcpSystemd *self = NM_DHCP_SYSTEMD (user_data);
+ NMDhcpSystemdPrivate *priv = NM_DHCP_SYSTEMD_GET_PRIVATE (self);
+ const char *iface = nm_dhcp_client_get_iface (NM_DHCP_CLIENT (self));
+
+ g_assert (priv->client6 == client);
+
+ nm_log_dbg (LOGD_DHCP6, "(%s): DHCPv6 client event %d", iface, event);
+
+ switch (event) {
+ case SD_DHCP6_CLIENT_EVENT_RETRANS_MAX:
+ nm_dhcp_client_set_state (NM_DHCP_CLIENT (user_data), NM_DHCP_STATE_TIMEOUT, NULL, NULL);
+ break;
+ case SD_DHCP6_CLIENT_EVENT_RESEND_EXPIRE:
+ case SD_DHCP6_CLIENT_EVENT_STOP:
+ nm_dhcp_client_set_state (NM_DHCP_CLIENT (user_data), NM_DHCP_STATE_FAIL, NULL, NULL);
+ break;
+ case SD_DHCP6_CLIENT_EVENT_IP_ACQUIRE:
+ bound6_handle (self);
+ break;
+ default:
+ nm_log_warn (LOGD_DHCP6, "(%s): unhandled DHCPv6 event %d", iface, event);
+ break;
+ }
+}
+
+static gboolean
+ip6_start (NMDhcpClient *client,
+ const char *dhcp_anycast_addr,
+ const struct in6_addr *ll_addr,
+ gboolean info_only,
+ NMSettingIP6ConfigPrivacy privacy,
+ const GByteArray *duid)
+{
+ NMDhcpSystemdPrivate *priv = NM_DHCP_SYSTEMD_GET_PRIVATE (client);
+ const char *iface = nm_dhcp_client_get_iface (client);
+ const GByteArray *hwaddr;
+ int r, i;
+
+ g_assert (priv->client4 == NULL);
+ g_assert (priv->client6 == NULL);
+ g_return_val_if_fail (duid != NULL, FALSE);
+
+ g_free (priv->lease_file);
+ priv->lease_file = get_leasefile_path (iface, nm_dhcp_client_get_uuid (client), TRUE);
+
+ r = sd_dhcp6_client_new (&priv->client6);
+ if (r < 0) {
+ nm_log_warn (LOGD_DHCP6, "(%s): failed to create DHCPv6 client (%d)", iface, r);
+ return FALSE;
+ }
+
+ /* NM stores the entire DUID which includes the uint16 "type", while systemd
+ * wants the type passed separately from the following data.
+ */
+ r = sd_dhcp6_client_set_duid (priv->client6,
+ ntohs (((const guint16 *) duid->data)[0]),
+ duid->data + 2,
+ duid->len - 2);
+ if (r < 0) {
+ nm_log_warn (LOGD_DHCP6, "(%s): failed to create DHCPv6 client (%d)", iface, r);
+ return FALSE;
+ }
+
+ r = sd_dhcp6_client_attach_event (priv->client6, NULL, 0);
+ if (r < 0) {
+ nm_log_warn (LOGD_DHCP6, "(%s): failed to attach DHCP event (%d)", iface, r);
+ goto error;
+ }
+
+ hwaddr = nm_dhcp_client_get_hw_addr (client);
+ if (hwaddr) {
+ r = sd_dhcp6_client_set_mac (priv->client6,
+ hwaddr->data,
+ hwaddr->len,
+ get_arp_type (hwaddr));
+ if (r < 0) {
+ nm_log_warn (LOGD_DHCP6, "(%s): failed to set DHCP MAC address (%d)", iface, r);
+ goto error;
+ }
+ }
+
+ r = sd_dhcp6_client_set_index (priv->client6, nm_dhcp_client_get_ifindex (client));
+ if (r < 0) {
+ nm_log_warn (LOGD_DHCP6, "(%s): failed to set DHCP ifindex (%d)", iface, r);
+ goto error;
+ }
+
+ r = sd_dhcp6_client_set_callback (priv->client6, dhcp6_event_cb, client);
+ if (r < 0) {
+ nm_log_warn (LOGD_DHCP6, "(%s): failed to set DHCP callback (%d)", iface, r);
+ goto error;
+ }
+
+ /* Add requested options */
+ for (i = 0; dhcp6_requests[i].name; i++) {
+ if (dhcp6_requests[i].include)
+ sd_dhcp6_client_set_request_option (priv->client6, dhcp6_requests[i].num);
+ }
+
++ r = sd_dhcp6_client_set_local_address (priv->client6, ll_addr);
++ if (r < 0) {
++ nm_log_warn (LOGD_DHCP6, "(%s): failed to set local address (%d)", iface, r);
++ goto error;
++ }
++
+ r = sd_dhcp6_client_start (priv->client6);
+ if (r < 0) {
+ nm_log_warn (LOGD_DHCP6, "(%s): failed to start DHCP (%d)", iface, r);
+ goto error;
+ }
+
+ return TRUE;
+
+error:
+ sd_dhcp6_client_unref (priv->client6);
+ priv->client6 = NULL;
+ return FALSE;
+}
+
+static void
+stop (NMDhcpClient *client, gboolean release, const GByteArray *duid)
+{
+ NMDhcpSystemdPrivate *priv = NM_DHCP_SYSTEMD_GET_PRIVATE (client);
+ int r = 0;
+
+ if (priv->client4)
+ r = sd_dhcp_client_stop (priv->client4);
+ else if (priv->client6)
+ r = sd_dhcp6_client_stop (priv->client6);
+
+ if (r) {
+ nm_log_warn (priv->client6 ? LOGD_DHCP6 : LOGD_DHCP4,
+ "(%s): failed to stop DHCP client (%d)",
+ nm_dhcp_client_get_iface (client),
+ r);
+ }
+}
+
+/***************************************************/
+
+static void
+nm_dhcp_systemd_init (NMDhcpSystemd *self)
+{
+}
+
+static void
+dispose (GObject *object)
+{
+ NMDhcpSystemdPrivate *priv = NM_DHCP_SYSTEMD_GET_PRIVATE (object);
+
+ g_clear_pointer (&priv->lease_file, g_free);
+
+ if (priv->client4) {
+ sd_dhcp_client_stop (priv->client4);
+ sd_dhcp_client_unref (priv->client4);
+ priv->client4 = NULL;
+ }
+
+ if (priv->client6) {
+ sd_dhcp6_client_stop (priv->client6);
+ sd_dhcp6_client_unref (priv->client6);
+ priv->client6 = NULL;
+ }
+
+ G_OBJECT_CLASS (nm_dhcp_systemd_parent_class)->dispose (object);
+}
+
+static void
+nm_dhcp_systemd_class_init (NMDhcpSystemdClass *sdhcp_class)
+{
+ NMDhcpClientClass *client_class = NM_DHCP_CLIENT_CLASS (sdhcp_class);
+ GObjectClass *object_class = G_OBJECT_CLASS (sdhcp_class);
+
+ g_type_class_add_private (sdhcp_class, sizeof (NMDhcpSystemdPrivate));
+
+ /* virtual methods */
+ object_class->dispose = dispose;
+
+ client_class->ip4_start = ip4_start;
+ client_class->ip6_start = ip6_start;
+ client_class->stop = stop;
+}
+
+static void __attribute__((constructor))
+register_dhcp_dhclient (void)
+{
+ nm_g_type_init ();
+ _nm_dhcp_client_register (NM_TYPE_DHCP_SYSTEMD,
+ "internal",
+ NULL,
+ nm_dhcp_systemd_get_lease_ip_configs);
+}
+
--- /dev/null
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
+/* This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Copyright (C) 2014 Red Hat, Inc.
+ */
+
+#include "config.h"
+
+#include <glib.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include "sd-event.h"
++#include "fd-util.h"
+#include "time-util.h"
+
+struct sd_event_source {
+ guint refcount;
+ guint id;
+ gpointer user_data;
+
+ GIOChannel *channel;
+
+ union {
+ struct {
+ sd_event_io_handler_t cb;
+ } io;
+ struct {
+ sd_event_time_handler_t cb;
+ uint64_t usec;
+ } time;
+ };
+};
+
+static struct sd_event_source *
+source_new (void)
+{
+ struct sd_event_source *source;
+
+ source = g_slice_new0 (struct sd_event_source);
+ source->refcount = 1;
+ return source;
+}
+
+int
+sd_event_source_set_priority (sd_event_source *s, int64_t priority)
+{
+ return 0;
+}
+
+sd_event_source*
+sd_event_source_unref (sd_event_source *s)
+{
+
+ if (!s)
+ return NULL;
+
+ g_return_val_if_fail (s->refcount, NULL);
+
+ s->refcount--;
+ if (s->refcount == 0) {
+ if (s->id)
+ g_source_remove (s->id);
+ if (s->channel) {
+ /* Don't shut down the channel since systemd will soon close
+ * the file descriptor itself, which would cause -EBADF.
+ */
+ g_io_channel_unref (s->channel);
+ }
+ g_slice_free (struct sd_event_source, s);
+ }
+ return NULL;
+}
+
+int
+sd_event_source_set_description(sd_event_source *s, const char *description)
+{
+ if (!s)
+ return -EINVAL;
+
+ g_source_set_name_by_id (s->id, description);
+ return 0;
+}
+
+static gboolean
+io_ready (GIOChannel *channel, GIOCondition condition, struct sd_event_source *source)
+{
+ int r, revents = 0;
+ gboolean result;
+
+ if (condition & G_IO_IN)
+ revents |= EPOLLIN;
+ if (condition & G_IO_OUT)
+ revents |= EPOLLOUT;
+ if (condition & G_IO_PRI)
+ revents |= EPOLLPRI;
+ if (condition & G_IO_ERR)
+ revents |= EPOLLERR;
+ if (condition & G_IO_HUP)
+ revents |= EPOLLHUP;
+
+ source->refcount++;
+
+ r = source->io.cb (source, g_io_channel_unix_get_fd (channel), revents, source->user_data);
+ if (r < 0 || source->refcount <= 1) {
+ source->id = 0;
+ result = G_SOURCE_REMOVE;
+ } else
+ result = G_SOURCE_CONTINUE;
+
+ sd_event_source_unref (source);
+
+ return result;
+}
+
+int
+sd_event_add_io (sd_event *e, sd_event_source **s, int fd, uint32_t events, sd_event_io_handler_t callback, void *userdata)
+{
+ struct sd_event_source *source;
+ GIOChannel *channel;
+ GIOCondition condition = 0;
+
+ /* systemd supports floating sd_event_source by omitting the @s argument.
+ * We don't have such users and don't implement floating references. */
+ g_return_val_if_fail (s, -EINVAL);
+
+ channel = g_io_channel_unix_new (fd);
+ if (!channel)
+ return -EINVAL;
+
+ source = source_new ();
+ source->io.cb = callback;
+ source->user_data = userdata;
+ source->channel = channel;
+
+ if (events & EPOLLIN)
+ condition |= G_IO_IN;
+ if (events & EPOLLOUT)
+ condition |= G_IO_OUT;
+ if (events & EPOLLPRI)
+ condition |= G_IO_PRI;
+ if (events & EPOLLERR)
+ condition |= G_IO_ERR;
+ if (events & EPOLLHUP)
+ condition |= G_IO_HUP;
+
+ g_io_channel_set_encoding (source->channel, NULL, NULL);
+ g_io_channel_set_buffered (source->channel, FALSE);
+ source->id = g_io_add_watch (source->channel, condition, (GIOFunc) io_ready, source);
+
+ *s = source;
+ return 0;
+}
+
+static gboolean
+time_ready (struct sd_event_source *source)
+{
+ source->refcount++;
+
+ source->time.cb (source, source->time.usec, source->user_data);
+ source->id = 0;
+
+ sd_event_source_unref (source);
+
+ return G_SOURCE_REMOVE;
+}
+
+int
+sd_event_add_time(sd_event *e, sd_event_source **s, clockid_t clock, uint64_t usec, uint64_t accuracy, sd_event_time_handler_t callback, void *userdata)
+{
+ struct sd_event_source *source;
+ uint64_t n = now (clock);
+
+ /* systemd supports floating sd_event_source by omitting the @s argument.
+ * We don't have such users and don't implement floating references. */
+ g_return_val_if_fail (s, -EINVAL);
+
+ source = source_new ();
+ source->time.cb = callback;
+ source->user_data = userdata;
+ source->time.usec = usec;
+
+ if (usec > 1000)
+ usec = n < usec - 1000 ? usec - n : 1000;
+ source->id = g_timeout_add (usec / 1000, (GSourceFunc) time_ready, source);
+
+ *s = source;
+ return 0;
+}
+
+/* sd_event is basically a GMainContext; but since we only
+ * ever use the default context, nothing to do here.
+ */
+
+int
+sd_event_default (sd_event **e)
+{
+ *e = GUINT_TO_POINTER (1);
+ return 0;
+}
+
+sd_event*
+sd_event_ref (sd_event *e)
+{
+ return e;
+}
+
+sd_event*
+sd_event_unref (sd_event *e)
+{
+ return NULL;
+}
+
+int
+sd_event_now (sd_event *e, clockid_t clock, uint64_t *usec)
+{
+ *usec = now (clock);
+ return 0;
+}
+
+int asynchronous_close(int fd) {
+ safe_close(fd);
+ return -1;
+}
+
--- /dev/null
+ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+ /***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
++#include "nm-sd-adapt.h"
++
+ #include "alloc-util.h"
+ #include "util.h"
+
+ void* memdup(const void *p, size_t l) {
+ void *r;
+
+ assert(p);
+
+ r = malloc(l);
+ if (!r)
+ return NULL;
+
+ memcpy(r, p, l);
+ return r;
+ }
+
+ void* greedy_realloc(void **p, size_t *allocated, size_t need, size_t size) {
+ size_t a, newalloc;
+ void *q;
+
+ assert(p);
+ assert(allocated);
+
+ if (*allocated >= need)
+ return *p;
+
+ newalloc = MAX(need * 2, 64u / size);
+ a = newalloc * size;
+
+ /* check for overflows */
+ if (a < size * need)
+ return NULL;
+
+ q = realloc(*p, a);
+ if (!q)
+ return NULL;
+
+ *p = q;
+ *allocated = newalloc;
+ return q;
+ }
+
+ void* greedy_realloc0(void **p, size_t *allocated, size_t need, size_t size) {
+ size_t prev;
+ uint8_t *q;
+
+ assert(p);
+ assert(allocated);
+
+ prev = *allocated;
+
+ q = greedy_realloc(p, allocated, need, size);
+ if (!q)
+ return NULL;
+
+ if (*allocated > prev)
+ memzero(q + prev * size, (*allocated - prev) * size);
+
+ return q;
+ }
--- /dev/null
+ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+ #pragma once
+
+ /***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
++#include "nm-sd-adapt.h"
++
+ #include <alloca.h>
+ #include <stdlib.h>
+ #include <string.h>
+
+ #include "macro.h"
+
+ #define new(t, n) ((t*) malloc_multiply(sizeof(t), (n)))
+
+ #define new0(t, n) ((t*) calloc((n), sizeof(t)))
+
+ #define newa(t, n) ((t*) alloca(sizeof(t)*(n)))
+
+ #define newa0(t, n) ((t*) alloca0(sizeof(t)*(n)))
+
+ #define newdup(t, p, n) ((t*) memdup_multiply(p, sizeof(t), (n)))
+
+ #define malloc0(n) (calloc(1, (n)))
+
+ static inline void *mfree(void *memory) {
+ free(memory);
+ return NULL;
+ }
+
+ void* memdup(const void *p, size_t l) _alloc_(2);
+
+ static inline void freep(void *p) {
+ free(*(void**) p);
+ }
+
+ #define _cleanup_free_ _cleanup_(freep)
+
+ _malloc_ _alloc_(1, 2) static inline void *malloc_multiply(size_t a, size_t b) {
+ if (_unlikely_(b != 0 && a > ((size_t) -1) / b))
+ return NULL;
+
+ return malloc(a * b);
+ }
+
+ _alloc_(2, 3) static inline void *realloc_multiply(void *p, size_t a, size_t b) {
+ if (_unlikely_(b != 0 && a > ((size_t) -1) / b))
+ return NULL;
+
+ return realloc(p, a * b);
+ }
+
+ _alloc_(2, 3) static inline void *memdup_multiply(const void *p, size_t a, size_t b) {
+ if (_unlikely_(b != 0 && a > ((size_t) -1) / b))
+ return NULL;
+
+ return memdup(p, a * b);
+ }
+
+ void* greedy_realloc(void **p, size_t *allocated, size_t need, size_t size);
+ void* greedy_realloc0(void **p, size_t *allocated, size_t need, size_t size);
+
+ #define GREEDY_REALLOC(array, allocated, need) \
+ greedy_realloc((void**) &(array), &(allocated), (need), sizeof((array)[0]))
+
+ #define GREEDY_REALLOC0(array, allocated, need) \
+ greedy_realloc0((void**) &(array), &(allocated), (need), sizeof((array)[0]))
+
+ #define alloca0(n) \
+ ({ \
+ char *_new_; \
+ size_t _len_ = n; \
+ _new_ = alloca(_len_); \
+ (void *) memset(_new_, 0, _len_); \
+ })
+
+ /* It's not clear what alignment glibc/gcc alloca() guarantee, hence provide a guaranteed safe version */
+ #define alloca_align(size, align) \
+ ({ \
+ void *_ptr_; \
+ size_t _mask_ = (align) - 1; \
+ _ptr_ = alloca((size) + _mask_); \
+ (void*)(((uintptr_t)_ptr_ + _mask_) & ~_mask_); \
+ })
+
+ #define alloca0_align(size, align) \
+ ({ \
+ void *_new_; \
+ size_t _size_ = (size); \
+ _new_ = alloca_align(_size_, (align)); \
+ (void*)memset(_new_, 0, _size_); \
+ })
--- /dev/null
+ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+ /***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
++#include "nm-sd-adapt.h"
++
+ #include "alloc-util.h"
+ #include "escape.h"
+ #include "hexdecoct.h"
+ #include "string-util.h"
+ #include "utf8.h"
+ #include "util.h"
+
+ size_t cescape_char(char c, char *buf) {
+ char * buf_old = buf;
+
+ switch (c) {
+
+ case '\a':
+ *(buf++) = '\\';
+ *(buf++) = 'a';
+ break;
+ case '\b':
+ *(buf++) = '\\';
+ *(buf++) = 'b';
+ break;
+ case '\f':
+ *(buf++) = '\\';
+ *(buf++) = 'f';
+ break;
+ case '\n':
+ *(buf++) = '\\';
+ *(buf++) = 'n';
+ break;
+ case '\r':
+ *(buf++) = '\\';
+ *(buf++) = 'r';
+ break;
+ case '\t':
+ *(buf++) = '\\';
+ *(buf++) = 't';
+ break;
+ case '\v':
+ *(buf++) = '\\';
+ *(buf++) = 'v';
+ break;
+ case '\\':
+ *(buf++) = '\\';
+ *(buf++) = '\\';
+ break;
+ case '"':
+ *(buf++) = '\\';
+ *(buf++) = '"';
+ break;
+ case '\'':
+ *(buf++) = '\\';
+ *(buf++) = '\'';
+ break;
+
+ default:
+ /* For special chars we prefer octal over
+ * hexadecimal encoding, simply because glib's
+ * g_strescape() does the same */
+ if ((c < ' ') || (c >= 127)) {
+ *(buf++) = '\\';
+ *(buf++) = octchar((unsigned char) c >> 6);
+ *(buf++) = octchar((unsigned char) c >> 3);
+ *(buf++) = octchar((unsigned char) c);
+ } else
+ *(buf++) = c;
+ break;
+ }
+
+ return buf - buf_old;
+ }
+
+ char *cescape(const char *s) {
+ char *r, *t;
+ const char *f;
+
+ assert(s);
+
+ /* Does C style string escaping. May be reversed with
+ * cunescape(). */
+
+ r = new(char, strlen(s)*4 + 1);
+ if (!r)
+ return NULL;
+
+ for (f = s, t = r; *f; f++)
+ t += cescape_char(*f, t);
+
+ *t = 0;
+
+ return r;
+ }
+
+ int cunescape_one(const char *p, size_t length, char *ret, uint32_t *ret_unicode) {
+ int r = 1;
+
+ assert(p);
+ assert(*p);
+ assert(ret);
+
+ /* Unescapes C style. Returns the unescaped character in ret,
+ * unless we encountered a \u sequence in which case the full
+ * unicode character is returned in ret_unicode, instead. */
+
+ if (length != (size_t) -1 && length < 1)
+ return -EINVAL;
+
+ switch (p[0]) {
+
+ case 'a':
+ *ret = '\a';
+ break;
+ case 'b':
+ *ret = '\b';
+ break;
+ case 'f':
+ *ret = '\f';
+ break;
+ case 'n':
+ *ret = '\n';
+ break;
+ case 'r':
+ *ret = '\r';
+ break;
+ case 't':
+ *ret = '\t';
+ break;
+ case 'v':
+ *ret = '\v';
+ break;
+ case '\\':
+ *ret = '\\';
+ break;
+ case '"':
+ *ret = '"';
+ break;
+ case '\'':
+ *ret = '\'';
+ break;
+
+ case 's':
+ /* This is an extension of the XDG syntax files */
+ *ret = ' ';
+ break;
+
+ case 'x': {
+ /* hexadecimal encoding */
+ int a, b;
+
+ if (length != (size_t) -1 && length < 3)
+ return -EINVAL;
+
+ a = unhexchar(p[1]);
+ if (a < 0)
+ return -EINVAL;
+
+ b = unhexchar(p[2]);
+ if (b < 0)
+ return -EINVAL;
+
+ /* Don't allow NUL bytes */
+ if (a == 0 && b == 0)
+ return -EINVAL;
+
+ *ret = (char) ((a << 4U) | b);
+ r = 3;
+ break;
+ }
+
+ case 'u': {
+ /* C++11 style 16bit unicode */
+
+ int a[4];
+ unsigned i;
+ uint32_t c;
+
+ if (length != (size_t) -1 && length < 5)
+ return -EINVAL;
+
+ for (i = 0; i < 4; i++) {
+ a[i] = unhexchar(p[1 + i]);
+ if (a[i] < 0)
+ return a[i];
+ }
+
+ c = ((uint32_t) a[0] << 12U) | ((uint32_t) a[1] << 8U) | ((uint32_t) a[2] << 4U) | (uint32_t) a[3];
+
+ /* Don't allow 0 chars */
+ if (c == 0)
+ return -EINVAL;
+
+ if (c < 128)
+ *ret = c;
+ else {
+ if (!ret_unicode)
+ return -EINVAL;
+
+ *ret = 0;
+ *ret_unicode = c;
+ }
+
+ r = 5;
+ break;
+ }
+
+ case 'U': {
+ /* C++11 style 32bit unicode */
+
+ int a[8];
+ unsigned i;
+ uint32_t c;
+
+ if (length != (size_t) -1 && length < 9)
+ return -EINVAL;
+
+ for (i = 0; i < 8; i++) {
+ a[i] = unhexchar(p[1 + i]);
+ if (a[i] < 0)
+ return a[i];
+ }
+
+ c = ((uint32_t) a[0] << 28U) | ((uint32_t) a[1] << 24U) | ((uint32_t) a[2] << 20U) | ((uint32_t) a[3] << 16U) |
+ ((uint32_t) a[4] << 12U) | ((uint32_t) a[5] << 8U) | ((uint32_t) a[6] << 4U) | (uint32_t) a[7];
+
+ /* Don't allow 0 chars */
+ if (c == 0)
+ return -EINVAL;
+
+ /* Don't allow invalid code points */
+ if (!unichar_is_valid(c))
+ return -EINVAL;
+
+ if (c < 128)
+ *ret = c;
+ else {
+ if (!ret_unicode)
+ return -EINVAL;
+
+ *ret = 0;
+ *ret_unicode = c;
+ }
+
+ r = 9;
+ break;
+ }
+
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7': {
+ /* octal encoding */
+ int a, b, c;
+ uint32_t m;
+
+ if (length != (size_t) -1 && length < 3)
+ return -EINVAL;
+
+ a = unoctchar(p[0]);
+ if (a < 0)
+ return -EINVAL;
+
+ b = unoctchar(p[1]);
+ if (b < 0)
+ return -EINVAL;
+
+ c = unoctchar(p[2]);
+ if (c < 0)
+ return -EINVAL;
+
+ /* don't allow NUL bytes */
+ if (a == 0 && b == 0 && c == 0)
+ return -EINVAL;
+
+ /* Don't allow bytes above 255 */
+ m = ((uint32_t) a << 6U) | ((uint32_t) b << 3U) | (uint32_t) c;
+ if (m > 255)
+ return -EINVAL;
+
+ *ret = m;
+ r = 3;
+ break;
+ }
+
+ default:
+ return -EINVAL;
+ }
+
+ return r;
+ }
+
+ int cunescape_length_with_prefix(const char *s, size_t length, const char *prefix, UnescapeFlags flags, char **ret) {
+ char *r, *t;
+ const char *f;
+ size_t pl;
+
+ assert(s);
+ assert(ret);
+
+ /* Undoes C style string escaping, and optionally prefixes it. */
+
+ pl = prefix ? strlen(prefix) : 0;
+
+ r = new(char, pl+length+1);
+ if (!r)
+ return -ENOMEM;
+
+ if (prefix)
+ memcpy(r, prefix, pl);
+
+ for (f = s, t = r + pl; f < s + length; f++) {
+ size_t remaining;
+ uint32_t u;
+ char c;
+ int k;
+
+ remaining = s + length - f;
+ assert(remaining > 0);
+
+ if (*f != '\\') {
+ /* A literal literal, copy verbatim */
+ *(t++) = *f;
+ continue;
+ }
+
+ if (remaining == 1) {
+ if (flags & UNESCAPE_RELAX) {
+ /* A trailing backslash, copy verbatim */
+ *(t++) = *f;
+ continue;
+ }
+
+ free(r);
+ return -EINVAL;
+ }
+
+ k = cunescape_one(f + 1, remaining - 1, &c, &u);
+ if (k < 0) {
+ if (flags & UNESCAPE_RELAX) {
+ /* Invalid escape code, let's take it literal then */
+ *(t++) = '\\';
+ continue;
+ }
+
+ free(r);
+ return k;
+ }
+
+ if (c != 0)
+ /* Non-Unicode? Let's encode this directly */
+ *(t++) = c;
+ else
+ /* Unicode? Then let's encode this in UTF-8 */
+ t += utf8_encode_unichar(t, u);
+
+ f += k;
+ }
+
+ *t = 0;
+
+ *ret = r;
+ return t - r;
+ }
+
+ int cunescape_length(const char *s, size_t length, UnescapeFlags flags, char **ret) {
+ return cunescape_length_with_prefix(s, length, NULL, flags, ret);
+ }
+
+ int cunescape(const char *s, UnescapeFlags flags, char **ret) {
+ return cunescape_length(s, strlen(s), flags, ret);
+ }
+
+ char *xescape(const char *s, const char *bad) {
+ char *r, *t;
+ const char *f;
+
+ /* Escapes all chars in bad, in addition to \ and all special
+ * chars, in \xFF style escaping. May be reversed with
+ * cunescape(). */
+
+ r = new(char, strlen(s) * 4 + 1);
+ if (!r)
+ return NULL;
+
+ for (f = s, t = r; *f; f++) {
+
+ if ((*f < ' ') || (*f >= 127) ||
+ (*f == '\\') || strchr(bad, *f)) {
+ *(t++) = '\\';
+ *(t++) = 'x';
+ *(t++) = hexchar(*f >> 4);
+ *(t++) = hexchar(*f);
+ } else
+ *(t++) = *f;
+ }
+
+ *t = 0;
+
+ return r;
+ }
+
+ static char *strcpy_backslash_escaped(char *t, const char *s, const char *bad) {
+ assert(bad);
+
+ for (; *s; s++) {
+ if (*s == '\\' || strchr(bad, *s))
+ *(t++) = '\\';
+
+ *(t++) = *s;
+ }
+
+ return t;
+ }
+
+ char *shell_escape(const char *s, const char *bad) {
+ char *r, *t;
+
+ r = new(char, strlen(s)*2+1);
+ if (!r)
+ return NULL;
+
+ t = strcpy_backslash_escaped(r, s, bad);
+ *t = 0;
+
+ return r;
+ }
+
+ char *shell_maybe_quote(const char *s) {
+ const char *p;
+ char *r, *t;
+
+ assert(s);
+
+ /* Encloses a string in double quotes if necessary to make it
+ * OK as shell string. */
+
+ for (p = s; *p; p++)
+ if (*p <= ' ' ||
+ *p >= 127 ||
+ strchr(SHELL_NEED_QUOTES, *p))
+ break;
+
+ if (!*p)
+ return strdup(s);
+
+ r = new(char, 1+strlen(s)*2+1+1);
+ if (!r)
+ return NULL;
+
+ t = r;
+ *(t++) = '"';
+ t = mempcpy(t, s, p - s);
+
+ t = strcpy_backslash_escaped(t, p, SHELL_NEED_ESCAPE);
+
+ *(t++)= '"';
+ *t = 0;
+
+ return r;
+ }
--- /dev/null
+ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+ #pragma once
+
+ /***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
++#include "nm-sd-adapt.h"
++
+ #include <inttypes.h>
+ #include <sys/types.h>
+
+ /* What characters are special in the shell? */
+ /* must be escaped outside and inside double-quotes */
+ #define SHELL_NEED_ESCAPE "\"\\`$"
+ /* can be escaped or double-quoted */
+ #define SHELL_NEED_QUOTES SHELL_NEED_ESCAPE GLOB_CHARS "'()<>|&;"
+
+ typedef enum UnescapeFlags {
+ UNESCAPE_RELAX = 1,
+ } UnescapeFlags;
+
+ char *cescape(const char *s);
+ size_t cescape_char(char c, char *buf);
+
+ int cunescape(const char *s, UnescapeFlags flags, char **ret);
+ int cunescape_length(const char *s, size_t length, UnescapeFlags flags, char **ret);
+ int cunescape_length_with_prefix(const char *s, size_t length, const char *prefix, UnescapeFlags flags, char **ret);
+ int cunescape_one(const char *p, size_t length, char *ret, uint32_t *ret_unicode);
+
+ char *xescape(const char *s, const char *bad);
+
+ char *shell_escape(const char *s, const char *bad);
+ char *shell_maybe_quote(const char *s);
--- /dev/null
+ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+ /***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
++#include "nm-sd-adapt.h"
++
++#if 0 /* NM_IGNORED */
+ #include "dirent-util.h"
++#endif /* NM_IGNORED */
+ #include "fd-util.h"
++#if 0 /* NM_IGNORED */
+ #include "parse-util.h"
++#endif /* NM_IGNORED */
+ #include "socket-util.h"
+ #include "util.h"
+
+ int close_nointr(int fd) {
+ assert(fd >= 0);
+
+ if (close(fd) >= 0)
+ return 0;
+
+ /*
+ * Just ignore EINTR; a retry loop is the wrong thing to do on
+ * Linux.
+ *
+ * http://lkml.indiana.edu/hypermail/linux/kernel/0509.1/0877.html
+ * https://bugzilla.gnome.org/show_bug.cgi?id=682819
+ * http://utcc.utoronto.ca/~cks/space/blog/unix/CloseEINTR
+ * https://sites.google.com/site/michaelsafyan/software-engineering/checkforeintrwheninvokingclosethinkagain
+ */
+ if (errno == EINTR)
+ return 0;
+
+ return -errno;
+ }
+
+ int safe_close(int fd) {
+
+ /*
+ * Like close_nointr() but cannot fail. Guarantees errno is
+ * unchanged. Is a NOP with negative fds passed, and returns
+ * -1, so that it can be used in this syntax:
+ *
+ * fd = safe_close(fd);
+ */
+
+ if (fd >= 0) {
+ PROTECT_ERRNO;
+
+ /* The kernel might return pretty much any error code
+ * via close(), but the fd will be closed anyway. The
+ * only condition we want to check for here is whether
+ * the fd was invalid at all... */
+
+ assert_se(close_nointr(fd) != -EBADF);
+ }
+
+ return -1;
+ }
+
+ void safe_close_pair(int p[]) {
+ assert(p);
+
+ if (p[0] == p[1]) {
+ /* Special case pairs which use the same fd in both
+ * directions... */
+ p[0] = p[1] = safe_close(p[0]);
+ return;
+ }
+
+ p[0] = safe_close(p[0]);
+ p[1] = safe_close(p[1]);
+ }
+
+ void close_many(const int fds[], unsigned n_fd) {
+ unsigned i;
+
+ assert(fds || n_fd <= 0);
+
+ for (i = 0; i < n_fd; i++)
+ safe_close(fds[i]);
+ }
+
+ int fclose_nointr(FILE *f) {
+ assert(f);
+
+ /* Same as close_nointr(), but for fclose() */
+
+ if (fclose(f) == 0)
+ return 0;
+
+ if (errno == EINTR)
+ return 0;
+
+ return -errno;
+ }
+
+ FILE* safe_fclose(FILE *f) {
+
+ /* Same as safe_close(), but for fclose() */
+
+ if (f) {
+ PROTECT_ERRNO;
+
+ assert_se(fclose_nointr(f) != EBADF);
+ }
+
+ return NULL;
+ }
+
+ DIR* safe_closedir(DIR *d) {
+
+ if (d) {
+ PROTECT_ERRNO;
+
+ assert_se(closedir(d) >= 0 || errno != EBADF);
+ }
+
+ return NULL;
+ }
+
+ int fd_nonblock(int fd, bool nonblock) {
+ int flags, nflags;
+
+ assert(fd >= 0);
+
+ flags = fcntl(fd, F_GETFL, 0);
+ if (flags < 0)
+ return -errno;
+
+ if (nonblock)
+ nflags = flags | O_NONBLOCK;
+ else
+ nflags = flags & ~O_NONBLOCK;
+
+ if (nflags == flags)
+ return 0;
+
+ if (fcntl(fd, F_SETFL, nflags) < 0)
+ return -errno;
+
+ return 0;
+ }
+
+ int fd_cloexec(int fd, bool cloexec) {
+ int flags, nflags;
+
+ assert(fd >= 0);
+
+ flags = fcntl(fd, F_GETFD, 0);
+ if (flags < 0)
+ return -errno;
+
+ if (cloexec)
+ nflags = flags | FD_CLOEXEC;
+ else
+ nflags = flags & ~FD_CLOEXEC;
+
+ if (nflags == flags)
+ return 0;
+
+ if (fcntl(fd, F_SETFD, nflags) < 0)
+ return -errno;
+
+ return 0;
+ }
+
++#if 0 /* NM_IGNORED */
+ _pure_ static bool fd_in_set(int fd, const int fdset[], unsigned n_fdset) {
+ unsigned i;
+
+ assert(n_fdset == 0 || fdset);
+
+ for (i = 0; i < n_fdset; i++)
+ if (fdset[i] == fd)
+ return true;
+
+ return false;
+ }
+
+ int close_all_fds(const int except[], unsigned n_except) {
+ _cleanup_closedir_ DIR *d = NULL;
+ struct dirent *de;
+ int r = 0;
+
+ assert(n_except == 0 || except);
+
+ d = opendir("/proc/self/fd");
+ if (!d) {
+ int fd;
+ struct rlimit rl;
+
+ /* When /proc isn't available (for example in chroots)
+ * the fallback is brute forcing through the fd
+ * table */
+
+ assert_se(getrlimit(RLIMIT_NOFILE, &rl) >= 0);
+ for (fd = 3; fd < (int) rl.rlim_max; fd ++) {
+
+ if (fd_in_set(fd, except, n_except))
+ continue;
+
+ if (close_nointr(fd) < 0)
+ if (errno != EBADF && r == 0)
+ r = -errno;
+ }
+
+ return r;
+ }
+
+ while ((de = readdir(d))) {
+ int fd = -1;
+
+ if (hidden_file(de->d_name))
+ continue;
+
+ if (safe_atoi(de->d_name, &fd) < 0)
+ /* Let's better ignore this, just in case */
+ continue;
+
+ if (fd < 3)
+ continue;
+
+ if (fd == dirfd(d))
+ continue;
+
+ if (fd_in_set(fd, except, n_except))
+ continue;
+
+ if (close_nointr(fd) < 0) {
+ /* Valgrind has its own FD and doesn't want to have it closed */
+ if (errno != EBADF && r == 0)
+ r = -errno;
+ }
+ }
+
+ return r;
+ }
+
+ int same_fd(int a, int b) {
+ struct stat sta, stb;
+ pid_t pid;
+ int r, fa, fb;
+
+ assert(a >= 0);
+ assert(b >= 0);
+
+ /* Compares two file descriptors. Note that semantics are
+ * quite different depending on whether we have kcmp() or we
+ * don't. If we have kcmp() this will only return true for
+ * dup()ed file descriptors, but not otherwise. If we don't
+ * have kcmp() this will also return true for two fds of the same
+ * file, created by separate open() calls. Since we use this
+ * call mostly for filtering out duplicates in the fd store
+ * this difference hopefully doesn't matter too much. */
+
+ if (a == b)
+ return true;
+
+ /* Try to use kcmp() if we have it. */
+ pid = getpid();
+ r = kcmp(pid, pid, KCMP_FILE, a, b);
+ if (r == 0)
+ return true;
+ if (r > 0)
+ return false;
+ if (errno != ENOSYS)
+ return -errno;
+
+ /* We don't have kcmp(), use fstat() instead. */
+ if (fstat(a, &sta) < 0)
+ return -errno;
+
+ if (fstat(b, &stb) < 0)
+ return -errno;
+
+ if ((sta.st_mode & S_IFMT) != (stb.st_mode & S_IFMT))
+ return false;
+
+ /* We consider all device fds different, since two device fds
+ * might refer to quite different device contexts even though
+ * they share the same inode and backing dev_t. */
+
+ if (S_ISCHR(sta.st_mode) || S_ISBLK(sta.st_mode))
+ return false;
+
+ if (sta.st_dev != stb.st_dev || sta.st_ino != stb.st_ino)
+ return false;
+
+ /* The fds refer to the same inode on disk, let's also check
+ * if they have the same fd flags. This is useful to
+ * distinguish the read and write side of a pipe created with
+ * pipe(). */
+ fa = fcntl(a, F_GETFL);
+ if (fa < 0)
+ return -errno;
+
+ fb = fcntl(b, F_GETFL);
+ if (fb < 0)
+ return -errno;
+
+ return fa == fb;
+ }
++#endif /* NM_IGNORED */
+
+ void cmsg_close_all(struct msghdr *mh) {
+ struct cmsghdr *cmsg;
+
+ assert(mh);
+
+ CMSG_FOREACH(cmsg, mh)
+ if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS)
+ close_many((int*) CMSG_DATA(cmsg), (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int));
+ }
+
+ bool fdname_is_valid(const char *s) {
+ const char *p;
+
+ /* Validates a name for $LISTEN_FDNAMES. We basically allow
+ * everything ASCII that's not a control character. Also, as
+ * special exception the ":" character is not allowed, as we
+ * use that as field separator in $LISTEN_FDNAMES.
+ *
+ * Note that the empty string is explicitly allowed
+ * here. However, we limit the length of the names to 255
+ * characters. */
+
+ if (!s)
+ return false;
+
+ for (p = s; *p; p++) {
+ if (*p < ' ')
+ return false;
+ if (*p >= 127)
+ return false;
+ if (*p == ':')
+ return false;
+ }
+
+ return p - s < 256;
+ }
--- /dev/null
+ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+ #pragma once
+
+ /***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
++#include "nm-sd-adapt.h"
++
+ #include <dirent.h>
+ #include <stdbool.h>
+ #include <stdio.h>
+ #include <sys/socket.h>
+
+ #include "macro.h"
+
+ /* Make sure we can distinguish fd 0 and NULL */
+ #define FD_TO_PTR(fd) INT_TO_PTR((fd)+1)
+ #define PTR_TO_FD(p) (PTR_TO_INT(p)-1)
+
+ int close_nointr(int fd);
+ int safe_close(int fd);
+ void safe_close_pair(int p[]);
+
+ void close_many(const int fds[], unsigned n_fd);
+
+ int fclose_nointr(FILE *f);
+ FILE* safe_fclose(FILE *f);
+ DIR* safe_closedir(DIR *f);
+
+ static inline void closep(int *fd) {
+ safe_close(*fd);
+ }
+
+ static inline void close_pairp(int (*p)[2]) {
+ safe_close_pair(*p);
+ }
+
+ static inline void fclosep(FILE **f) {
+ safe_fclose(*f);
+ }
+
+ DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, pclose);
+ DEFINE_TRIVIAL_CLEANUP_FUNC(DIR*, closedir);
+
+ #define _cleanup_close_ _cleanup_(closep)
+ #define _cleanup_fclose_ _cleanup_(fclosep)
+ #define _cleanup_pclose_ _cleanup_(pclosep)
+ #define _cleanup_closedir_ _cleanup_(closedirp)
+ #define _cleanup_close_pair_ _cleanup_(close_pairp)
+
+ int fd_nonblock(int fd, bool nonblock);
+ int fd_cloexec(int fd, bool cloexec);
+
+ int close_all_fds(const int except[], unsigned n_except);
+
+ int same_fd(int a, int b);
+
+ void cmsg_close_all(struct msghdr *mh);
+
+ bool fdname_is_valid(const char *s);
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "nm-sd-adapt.h"
+
#include <unistd.h>
- #include "util.h"
- #include "strv.h"
- #include "utf8.h"
+ #include "alloc-util.h"
#include "ctype.h"
+ #include "escape.h"
+ #include "fd-util.h"
#include "fileio.h"
+ #include "fs-util.h"
+ #include "hexdecoct.h"
+ #include "parse-util.h"
+ #include "path-util.h"
+ #include "random-util.h"
++#if 0 /* NM_IGNORED */
+ #include "stdio-util.h"
++#endif /* NM_IGNORED */
+ #include "string-util.h"
+ #include "strv.h"
+ #include "umask-util.h"
+ #include "utf8.h"
+ #include "util.h"
int write_string_stream(FILE *f, const char *line, bool enforce_newline) {
*field = f;
return 0;
}
+
+ DIR *xopendirat(int fd, const char *name, int flags) {
+ int nfd;
+ DIR *d;
+
+ assert(!(flags & O_CREAT));
+
+ nfd = openat(fd, name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|flags, 0);
+ if (nfd < 0)
+ return NULL;
+
+ d = fdopendir(nfd);
+ if (!d) {
+ safe_close(nfd);
+ return NULL;
+ }
+
+ return d;
+ }
+
++#if 0 /* NM_IGNORED */
+ static int search_and_fopen_internal(const char *path, const char *mode, const char *root, char **search, FILE **_f) {
+ char **i;
+
+ assert(path);
+ assert(mode);
+ assert(_f);
+
+ if (!path_strv_resolve_uniq(search, root))
+ return -ENOMEM;
+
+ STRV_FOREACH(i, search) {
+ _cleanup_free_ char *p = NULL;
+ FILE *f;
+
+ if (root)
+ p = strjoin(root, *i, "/", path, NULL);
+ else
+ p = strjoin(*i, "/", path, NULL);
+ if (!p)
+ return -ENOMEM;
+
+ f = fopen(p, mode);
+ if (f) {
+ *_f = f;
+ return 0;
+ }
+
+ if (errno != ENOENT)
+ return -errno;
+ }
+
+ return -ENOENT;
+ }
+
+ int search_and_fopen(const char *path, const char *mode, const char *root, const char **search, FILE **_f) {
+ _cleanup_strv_free_ char **copy = NULL;
+
+ assert(path);
+ assert(mode);
+ assert(_f);
+
+ if (path_is_absolute(path)) {
+ FILE *f;
+
+ f = fopen(path, mode);
+ if (f) {
+ *_f = f;
+ return 0;
+ }
+
+ return -errno;
+ }
+
+ copy = strv_copy((char**) search);
+ if (!copy)
+ return -ENOMEM;
+
+ return search_and_fopen_internal(path, mode, root, copy, _f);
+ }
+
+ int search_and_fopen_nulstr(const char *path, const char *mode, const char *root, const char *search, FILE **_f) {
+ _cleanup_strv_free_ char **s = NULL;
+
+ if (path_is_absolute(path)) {
+ FILE *f;
+
+ f = fopen(path, mode);
+ if (f) {
+ *_f = f;
+ return 0;
+ }
+
+ return -errno;
+ }
+
+ s = strv_split_nulstr(search);
+ if (!s)
+ return -ENOMEM;
+
+ return search_and_fopen_internal(path, mode, root, s, _f);
+ }
++#endif /* NM_IGNORED */
+
+ int fopen_temporary(const char *path, FILE **_f, char **_temp_path) {
+ FILE *f;
+ char *t;
+ int r, fd;
+
+ assert(path);
+ assert(_f);
+ assert(_temp_path);
+
+ r = tempfn_xxxxxx(path, NULL, &t);
+ if (r < 0)
+ return r;
+
+ fd = mkostemp_safe(t, O_WRONLY|O_CLOEXEC);
+ if (fd < 0) {
+ free(t);
+ return -errno;
+ }
+
+ f = fdopen(fd, "we");
+ if (!f) {
+ unlink_noerrno(t);
+ free(t);
+ safe_close(fd);
+ return -errno;
+ }
+
+ *_f = f;
+ *_temp_path = t;
+
+ return 0;
+ }
+
+ int fflush_and_check(FILE *f) {
+ assert(f);
+
+ errno = 0;
+ fflush(f);
+
+ if (ferror(f))
+ return errno ? -errno : -EIO;
+
+ return 0;
+ }
+
+ /* This is much like like mkostemp() but is subject to umask(). */
+ int mkostemp_safe(char *pattern, int flags) {
+ _cleanup_umask_ mode_t u;
+ int fd;
+
+ assert(pattern);
+
+ u = umask(077);
+
+ fd = mkostemp(pattern, flags);
+ if (fd < 0)
+ return -errno;
+
+ return fd;
+ }
+
+ int open_tmpfile(const char *path, int flags) {
+ char *p;
+ int fd;
+
+ assert(path);
+
+ #ifdef O_TMPFILE
+ /* Try O_TMPFILE first, if it is supported */
+ fd = open(path, flags|O_TMPFILE|O_EXCL, S_IRUSR|S_IWUSR);
+ if (fd >= 0)
+ return fd;
+ #endif
+
+ /* Fall back to unguessable name + unlinking */
+ p = strjoina(path, "/systemd-tmp-XXXXXX");
+
+ fd = mkostemp_safe(p, flags);
+ if (fd < 0)
+ return fd;
+
+ unlink(p);
+ return fd;
+ }
+
+ int tempfn_xxxxxx(const char *p, const char *extra, char **ret) {
+ const char *fn;
+ char *t;
+
+ assert(p);
+ assert(ret);
+
+ /*
+ * Turns this:
+ * /foo/bar/waldo
+ *
+ * Into this:
+ * /foo/bar/.#<extra>waldoXXXXXX
+ */
+
+ fn = basename(p);
+ if (!filename_is_valid(fn))
+ return -EINVAL;
+
+ if (extra == NULL)
+ extra = "";
+
+ t = new(char, strlen(p) + 2 + strlen(extra) + 6 + 1);
+ if (!t)
+ return -ENOMEM;
+
+ strcpy(stpcpy(stpcpy(stpcpy(mempcpy(t, p, fn - p), ".#"), extra), fn), "XXXXXX");
+
+ *ret = path_kill_slashes(t);
+ return 0;
+ }
+
+ int tempfn_random(const char *p, const char *extra, char **ret) {
+ const char *fn;
+ char *t, *x;
+ uint64_t u;
+ unsigned i;
+
+ assert(p);
+ assert(ret);
+
+ /*
+ * Turns this:
+ * /foo/bar/waldo
+ *
+ * Into this:
+ * /foo/bar/.#<extra>waldobaa2a261115984a9
+ */
+
+ fn = basename(p);
+ if (!filename_is_valid(fn))
+ return -EINVAL;
+
+ if (!extra)
+ extra = "";
+
+ t = new(char, strlen(p) + 2 + strlen(extra) + 16 + 1);
+ if (!t)
+ return -ENOMEM;
+
+ x = stpcpy(stpcpy(stpcpy(mempcpy(t, p, fn - p), ".#"), extra), fn);
+
+ u = random_u64();
+ for (i = 0; i < 16; i++) {
+ *(x++) = hexchar(u & 0xF);
+ u >>= 4;
+ }
+
+ *x = 0;
+
+ *ret = path_kill_slashes(t);
+ return 0;
+ }
+
+ int tempfn_random_child(const char *p, const char *extra, char **ret) {
+ char *t, *x;
+ uint64_t u;
+ unsigned i;
+
+ assert(p);
+ assert(ret);
+
+ /* Turns this:
+ * /foo/bar/waldo
+ * Into this:
+ * /foo/bar/waldo/.#<extra>3c2b6219aa75d7d0
+ */
+
+ if (!extra)
+ extra = "";
+
+ t = new(char, strlen(p) + 3 + strlen(extra) + 16 + 1);
+ if (!t)
+ return -ENOMEM;
+
+ x = stpcpy(stpcpy(stpcpy(t, p), "/.#"), extra);
+
+ u = random_u64();
+ for (i = 0; i < 16; i++) {
+ *(x++) = hexchar(u & 0xF);
+ u >>= 4;
+ }
+
+ *x = 0;
+
+ *ret = path_kill_slashes(t);
+ return 0;
+ }
+
++#if 0 /* NM_IGNORED */
+ int write_timestamp_file_atomic(const char *fn, usec_t n) {
+ char ln[DECIMAL_STR_MAX(n)+2];
+
+ /* Creates a "timestamp" file, that contains nothing but a
+ * usec_t timestamp, formatted in ASCII. */
+
+ if (n <= 0 || n >= USEC_INFINITY)
+ return -ERANGE;
+
+ xsprintf(ln, USEC_FMT "\n", n);
+
+ return write_string_file(fn, ln, WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_ATOMIC);
+ }
++#endif /* NM_IGNORED */
+
+ int read_timestamp_file(const char *fn, usec_t *ret) {
+ _cleanup_free_ char *ln = NULL;
+ uint64_t t;
+ int r;
+
+ r = read_one_line_file(fn, &ln);
+ if (r < 0)
+ return r;
+
+ r = safe_atou64(ln, &t);
+ if (r < 0)
+ return r;
+
+ if (t <= 0 || t >= (uint64_t) USEC_INFINITY)
+ return -ERANGE;
+
+ *ret = (usec_t) t;
+ return 0;
+ }
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "nm-sd-adapt.h"
+
+ #include <dirent.h>
+ #include <stdbool.h>
#include <stddef.h>
#include <stdio.h>
+ #include <sys/types.h>
#include "macro.h"
+ #include "time-util.h"
typedef enum {
WRITE_STRING_FILE_CREATE = 1,
--- /dev/null
+ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+ /***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
++#include "nm-sd-adapt.h"
++
+ #include "alloc-util.h"
++#if 0 /* NM_IGNORED */
+ #include "dirent-util.h"
++#endif /* NM_IGNORED */
+ #include "fd-util.h"
+ #include "fileio.h"
+ #include "fs-util.h"
++#if 0 /* NM_IGNORED */
+ #include "mkdir.h"
++#endif /* NM_IGNORED */
+ #include "parse-util.h"
+ #include "path-util.h"
+ #include "string-util.h"
+ #include "strv.h"
++#if 0 /* NM_IGNORED */
+ #include "user-util.h"
++#endif /* NM_IGNORED */
+ #include "util.h"
+
+ int unlink_noerrno(const char *path) {
+ PROTECT_ERRNO;
+ int r;
+
+ r = unlink(path);
+ if (r < 0)
+ return -errno;
+
+ return 0;
+ }
+
++#if 0 /* NM_IGNORED */
+ int rmdir_parents(const char *path, const char *stop) {
+ size_t l;
+ int r = 0;
+
+ assert(path);
+ assert(stop);
+
+ l = strlen(path);
+
+ /* Skip trailing slashes */
+ while (l > 0 && path[l-1] == '/')
+ l--;
+
+ while (l > 0) {
+ char *t;
+
+ /* Skip last component */
+ while (l > 0 && path[l-1] != '/')
+ l--;
+
+ /* Skip trailing slashes */
+ while (l > 0 && path[l-1] == '/')
+ l--;
+
+ if (l <= 0)
+ break;
+
+ t = strndup(path, l);
+ if (!t)
+ return -ENOMEM;
+
+ if (path_startswith(stop, t)) {
+ free(t);
+ return 0;
+ }
+
+ r = rmdir(t);
+ free(t);
+
+ if (r < 0)
+ if (errno != ENOENT)
+ return -errno;
+ }
+
+ return 0;
+ }
+
+
+ int rename_noreplace(int olddirfd, const char *oldpath, int newdirfd, const char *newpath) {
+ struct stat buf;
+ int ret;
+
+ ret = renameat2(olddirfd, oldpath, newdirfd, newpath, RENAME_NOREPLACE);
+ if (ret >= 0)
+ return 0;
+
+ /* renameat2() exists since Linux 3.15, btrfs added support for it later.
+ * If it is not implemented, fallback to another method. */
+ if (!IN_SET(errno, EINVAL, ENOSYS))
+ return -errno;
+
+ /* The link()/unlink() fallback does not work on directories. But
+ * renameat() without RENAME_NOREPLACE gives the same semantics on
+ * directories, except when newpath is an *empty* directory. This is
+ * good enough. */
+ ret = fstatat(olddirfd, oldpath, &buf, AT_SYMLINK_NOFOLLOW);
+ if (ret >= 0 && S_ISDIR(buf.st_mode)) {
+ ret = renameat(olddirfd, oldpath, newdirfd, newpath);
+ return ret >= 0 ? 0 : -errno;
+ }
+
+ /* If it is not a directory, use the link()/unlink() fallback. */
+ ret = linkat(olddirfd, oldpath, newdirfd, newpath, 0);
+ if (ret < 0)
+ return -errno;
+
+ ret = unlinkat(olddirfd, oldpath, 0);
+ if (ret < 0) {
+ /* backup errno before the following unlinkat() alters it */
+ ret = errno;
+ (void) unlinkat(newdirfd, newpath, 0);
+ errno = ret;
+ return -errno;
+ }
+
+ return 0;
+ }
+
+ int readlinkat_malloc(int fd, const char *p, char **ret) {
+ size_t l = 100;
+ int r;
+
+ assert(p);
+ assert(ret);
+
+ for (;;) {
+ char *c;
+ ssize_t n;
+
+ c = new(char, l);
+ if (!c)
+ return -ENOMEM;
+
+ n = readlinkat(fd, p, c, l-1);
+ if (n < 0) {
+ r = -errno;
+ free(c);
+ return r;
+ }
+
+ if ((size_t) n < l-1) {
+ c[n] = 0;
+ *ret = c;
+ return 0;
+ }
+
+ free(c);
+ l *= 2;
+ }
+ }
+
+ int readlink_malloc(const char *p, char **ret) {
+ return readlinkat_malloc(AT_FDCWD, p, ret);
+ }
+
+ int readlink_value(const char *p, char **ret) {
+ _cleanup_free_ char *link = NULL;
+ char *value;
+ int r;
+
+ r = readlink_malloc(p, &link);
+ if (r < 0)
+ return r;
+
+ value = basename(link);
+ if (!value)
+ return -ENOENT;
+
+ value = strdup(value);
+ if (!value)
+ return -ENOMEM;
+
+ *ret = value;
+
+ return 0;
+ }
+
+ int readlink_and_make_absolute(const char *p, char **r) {
+ _cleanup_free_ char *target = NULL;
+ char *k;
+ int j;
+
+ assert(p);
+ assert(r);
+
+ j = readlink_malloc(p, &target);
+ if (j < 0)
+ return j;
+
+ k = file_in_same_dir(p, target);
+ if (!k)
+ return -ENOMEM;
+
+ *r = k;
+ return 0;
+ }
+
+ int readlink_and_canonicalize(const char *p, char **r) {
+ char *t, *s;
+ int j;
+
+ assert(p);
+ assert(r);
+
+ j = readlink_and_make_absolute(p, &t);
+ if (j < 0)
+ return j;
+
+ s = canonicalize_file_name(t);
+ if (s) {
+ free(t);
+ *r = s;
+ } else
+ *r = t;
+
+ path_kill_slashes(*r);
+
+ return 0;
+ }
+
+ int readlink_and_make_absolute_root(const char *root, const char *path, char **ret) {
+ _cleanup_free_ char *target = NULL, *t = NULL;
+ const char *full;
+ int r;
+
+ full = prefix_roota(root, path);
+ r = readlink_malloc(full, &target);
+ if (r < 0)
+ return r;
+
+ t = file_in_same_dir(path, target);
+ if (!t)
+ return -ENOMEM;
+
+ *ret = t;
+ t = NULL;
+
+ return 0;
+ }
+
+ int chmod_and_chown(const char *path, mode_t mode, uid_t uid, gid_t gid) {
+ assert(path);
+
+ /* Under the assumption that we are running privileged we
+ * first change the access mode and only then hand out
+ * ownership to avoid a window where access is too open. */
+
+ if (mode != MODE_INVALID)
+ if (chmod(path, mode) < 0)
+ return -errno;
+
+ if (uid != UID_INVALID || gid != GID_INVALID)
+ if (chown(path, uid, gid) < 0)
+ return -errno;
+
+ return 0;
+ }
+
+ int fchmod_and_fchown(int fd, mode_t mode, uid_t uid, gid_t gid) {
+ assert(fd >= 0);
+
+ /* Under the assumption that we are running privileged we
+ * first change the access mode and only then hand out
+ * ownership to avoid a window where access is too open. */
+
+ if (mode != MODE_INVALID)
+ if (fchmod(fd, mode) < 0)
+ return -errno;
+
+ if (uid != UID_INVALID || gid != GID_INVALID)
+ if (fchown(fd, uid, gid) < 0)
+ return -errno;
+
+ return 0;
+ }
++#endif /* NM_IGNORED */
+
+ int fchmod_umask(int fd, mode_t m) {
+ mode_t u;
+ int r;
+
+ u = umask(0777);
+ r = fchmod(fd, m & (~u)) < 0 ? -errno : 0;
+ umask(u);
+
+ return r;
+ }
+
++#if 0 /* NM_IGNORED */
+ int fd_warn_permissions(const char *path, int fd) {
+ struct stat st;
+
+ if (fstat(fd, &st) < 0)
+ return -errno;
+
+ if (st.st_mode & 0111)
+ log_warning("Configuration file %s is marked executable. Please remove executable permission bits. Proceeding anyway.", path);
+
+ if (st.st_mode & 0002)
+ log_warning("Configuration file %s is marked world-writable. Please remove world writability permission bits. Proceeding anyway.", path);
+
+ if (getpid() == 1 && (st.st_mode & 0044) != 0044)
+ log_warning("Configuration file %s is marked world-inaccessible. This has no effect as configuration data is accessible via APIs without restrictions. Proceeding anyway.", path);
+
+ return 0;
+ }
+
+ int touch_file(const char *path, bool parents, usec_t stamp, uid_t uid, gid_t gid, mode_t mode) {
+ _cleanup_close_ int fd;
+ int r;
+
+ assert(path);
+
+ if (parents)
+ mkdir_parents(path, 0755);
+
+ fd = open(path, O_WRONLY|O_CREAT|O_CLOEXEC|O_NOCTTY, mode > 0 ? mode : 0644);
+ if (fd < 0)
+ return -errno;
+
+ if (mode != MODE_INVALID) {
+ r = fchmod(fd, mode);
+ if (r < 0)
+ return -errno;
+ }
+
+ if (uid != UID_INVALID || gid != GID_INVALID) {
+ r = fchown(fd, uid, gid);
+ if (r < 0)
+ return -errno;
+ }
+
+ if (stamp != USEC_INFINITY) {
+ struct timespec ts[2];
+
+ timespec_store(&ts[0], stamp);
+ ts[1] = ts[0];
+ r = futimens(fd, ts);
+ } else
+ r = futimens(fd, NULL);
+ if (r < 0)
+ return -errno;
+
+ return 0;
+ }
+
+ int touch(const char *path) {
+ return touch_file(path, false, USEC_INFINITY, UID_INVALID, GID_INVALID, MODE_INVALID);
+ }
+
+ int symlink_idempotent(const char *from, const char *to) {
+ _cleanup_free_ char *p = NULL;
+ int r;
+
+ assert(from);
+ assert(to);
+
+ if (symlink(from, to) < 0) {
+ if (errno != EEXIST)
+ return -errno;
+
+ r = readlink_malloc(to, &p);
+ if (r < 0)
+ return r;
+
+ if (!streq(p, from))
+ return -EINVAL;
+ }
+
+ return 0;
+ }
+
+ int symlink_atomic(const char *from, const char *to) {
+ _cleanup_free_ char *t = NULL;
+ int r;
+
+ assert(from);
+ assert(to);
+
+ r = tempfn_random(to, NULL, &t);
+ if (r < 0)
+ return r;
+
+ if (symlink(from, t) < 0)
+ return -errno;
+
+ if (rename(t, to) < 0) {
+ unlink_noerrno(t);
+ return -errno;
+ }
+
+ return 0;
+ }
+
+ int mknod_atomic(const char *path, mode_t mode, dev_t dev) {
+ _cleanup_free_ char *t = NULL;
+ int r;
+
+ assert(path);
+
+ r = tempfn_random(path, NULL, &t);
+ if (r < 0)
+ return r;
+
+ if (mknod(t, mode, dev) < 0)
+ return -errno;
+
+ if (rename(t, path) < 0) {
+ unlink_noerrno(t);
+ return -errno;
+ }
+
+ return 0;
+ }
+
+ int mkfifo_atomic(const char *path, mode_t mode) {
+ _cleanup_free_ char *t = NULL;
+ int r;
+
+ assert(path);
+
+ r = tempfn_random(path, NULL, &t);
+ if (r < 0)
+ return r;
+
+ if (mkfifo(t, mode) < 0)
+ return -errno;
+
+ if (rename(t, path) < 0) {
+ unlink_noerrno(t);
+ return -errno;
+ }
+
+ return 0;
+ }
+
+ int get_files_in_directory(const char *path, char ***list) {
+ _cleanup_closedir_ DIR *d = NULL;
+ size_t bufsize = 0, n = 0;
+ _cleanup_strv_free_ char **l = NULL;
+
+ assert(path);
+
+ /* Returns all files in a directory in *list, and the number
+ * of files as return value. If list is NULL returns only the
+ * number. */
+
+ d = opendir(path);
+ if (!d)
+ return -errno;
+
+ for (;;) {
+ struct dirent *de;
+
+ errno = 0;
+ de = readdir(d);
+ if (!de && errno != 0)
+ return -errno;
+ if (!de)
+ break;
+
+ dirent_ensure_type(d, de);
+
+ if (!dirent_is_file(de))
+ continue;
+
+ if (list) {
+ /* one extra slot is needed for the terminating NULL */
+ if (!GREEDY_REALLOC(l, bufsize, n + 2))
+ return -ENOMEM;
+
+ l[n] = strdup(de->d_name);
+ if (!l[n])
+ return -ENOMEM;
+
+ l[++n] = NULL;
+ } else
+ n++;
+ }
+
+ if (list) {
+ *list = l;
+ l = NULL; /* avoid freeing */
+ }
+
+ return n;
+ }
++#endif /* NM_IGNORED */
--- /dev/null
+ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+ #pragma once
+
+ /***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
++#include "nm-sd-adapt.h"
++
+ #include <fcntl.h>
+ #include <limits.h>
+ #include <sys/inotify.h>
+ #include <sys/types.h>
+ #include <unistd.h>
+
+ #include "time-util.h"
+
+ int unlink_noerrno(const char *path);
+
+ int rmdir_parents(const char *path, const char *stop);
+
+ int rename_noreplace(int olddirfd, const char *oldpath, int newdirfd, const char *newpath);
+
+ int readlinkat_malloc(int fd, const char *p, char **ret);
+ int readlink_malloc(const char *p, char **r);
+ int readlink_value(const char *p, char **ret);
+ int readlink_and_make_absolute(const char *p, char **r);
+ int readlink_and_canonicalize(const char *p, char **r);
+ int readlink_and_make_absolute_root(const char *root, const char *path, char **ret);
+
+ int chmod_and_chown(const char *path, mode_t mode, uid_t uid, gid_t gid);
+ int fchmod_and_fchown(int fd, mode_t mode, uid_t uid, gid_t gid);
+
+ int fchmod_umask(int fd, mode_t mode);
+
+ int fd_warn_permissions(const char *path, int fd);
+
+ #define laccess(path, mode) faccessat(AT_FDCWD, (path), (mode), AT_SYMLINK_NOFOLLOW)
+
+ int touch_file(const char *path, bool parents, usec_t stamp, uid_t uid, gid_t gid, mode_t mode);
+ int touch(const char *path);
+
+ int symlink_idempotent(const char *from, const char *to);
+
+ int symlink_atomic(const char *from, const char *to);
+ int mknod_atomic(const char *path, mode_t mode, dev_t dev);
+ int mkfifo_atomic(const char *path, mode_t mode);
+
+ int get_files_in_directory(const char *path, char ***list);
+
+ #define INOTIFY_EVENT_MAX (sizeof(struct inotify_event) + NAME_MAX + 1)
+
+ #define FOREACH_INOTIFY_EVENT(e, buffer, sz) \
+ for ((e) = &buffer.ev; \
+ (uint8_t*) (e) < (uint8_t*) (buffer.raw) + (sz); \
+ (e) = (struct inotify_event*) ((uint8_t*) (e) + sizeof(struct inotify_event) + (e)->len))
+
+ union inotify_event_buffer {
+ struct inotify_event ev;
+ uint8_t raw[INOTIFY_EVENT_MAX];
+ };
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <stdlib.h>
+#include "nm-sd-adapt.h"
+
#include <errno.h>
#include <pthread.h>
+ #include <stdlib.h>
- #include "util.h"
+ #include "alloc-util.h"
#include "hashmap.h"
- #include "set.h"
#include "macro.h"
- #include "siphash24.h"
- #include "strv.h"
#include "mempool.h"
++#if 0 /* NM_IGNORED */
+ #include "process-util.h"
++#endif /* NM_IGNORED */
#include "random-util.h"
+ #include "set.h"
+ #include "siphash24.h"
+ #include "strv.h"
+ #include "util.h"
#ifdef ENABLE_DEBUG_HASHMAP
#include "list.h"
--- /dev/null
+ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+ /***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
++#include "nm-sd-adapt.h"
++
+ #include <ctype.h>
+ #include <inttypes.h>
+
+ #include "alloc-util.h"
+ #include "hexdecoct.h"
+ #include "util.h"
+
+ char octchar(int x) {
+ return '0' + (x & 7);
+ }
+
+ int unoctchar(char c) {
+
+ if (c >= '0' && c <= '7')
+ return c - '0';
+
+ return -EINVAL;
+ }
+
+ char decchar(int x) {
+ return '0' + (x % 10);
+ }
+
+ int undecchar(char c) {
+
+ if (c >= '0' && c <= '9')
+ return c - '0';
+
+ return -EINVAL;
+ }
+
+ char hexchar(int x) {
+ static const char table[16] = "0123456789abcdef";
+
+ return table[x & 15];
+ }
+
+ int unhexchar(char c) {
+
+ if (c >= '0' && c <= '9')
+ return c - '0';
+
+ if (c >= 'a' && c <= 'f')
+ return c - 'a' + 10;
+
+ if (c >= 'A' && c <= 'F')
+ return c - 'A' + 10;
+
+ return -EINVAL;
+ }
+
+ char *hexmem(const void *p, size_t l) {
+ char *r, *z;
+ const uint8_t *x;
+
+ z = r = malloc(l * 2 + 1);
+ if (!r)
+ return NULL;
+
+ for (x = p; x < (const uint8_t*) p + l; x++) {
+ *(z++) = hexchar(*x >> 4);
+ *(z++) = hexchar(*x & 15);
+ }
+
+ *z = 0;
+ return r;
+ }
+
+ int unhexmem(const char *p, size_t l, void **mem, size_t *len) {
+ _cleanup_free_ uint8_t *r = NULL;
+ uint8_t *z;
+ const char *x;
+
+ assert(mem);
+ assert(len);
+ assert(p);
+
+ z = r = malloc((l + 1) / 2 + 1);
+ if (!r)
+ return -ENOMEM;
+
+ for (x = p; x < p + l; x += 2) {
+ int a, b;
+
+ a = unhexchar(x[0]);
+ if (a < 0)
+ return a;
+ else if (x+1 < p + l) {
+ b = unhexchar(x[1]);
+ if (b < 0)
+ return b;
+ } else
+ b = 0;
+
+ *(z++) = (uint8_t) a << 4 | (uint8_t) b;
+ }
+
+ *z = 0;
+
+ *mem = r;
+ r = NULL;
+ *len = (l + 1) / 2;
+
+ return 0;
+ }
+
+ /* https://tools.ietf.org/html/rfc4648#section-6
+ * Notice that base32hex differs from base32 in the alphabet it uses.
+ * The distinction is that the base32hex representation preserves the
+ * order of the underlying data when compared as bytestrings, this is
+ * useful when representing NSEC3 hashes, as one can then verify the
+ * order of hashes directly from their representation. */
+ char base32hexchar(int x) {
+ static const char table[32] = "0123456789"
+ "ABCDEFGHIJKLMNOPQRSTUV";
+
+ return table[x & 31];
+ }
+
+ int unbase32hexchar(char c) {
+ unsigned offset;
+
+ if (c >= '0' && c <= '9')
+ return c - '0';
+
+ offset = '9' - '0' + 1;
+
+ if (c >= 'A' && c <= 'V')
+ return c - 'A' + offset;
+
+ return -EINVAL;
+ }
+
+ char *base32hexmem(const void *p, size_t l, bool padding) {
+ char *r, *z;
+ const uint8_t *x;
+ size_t len;
+
+ if (padding)
+ /* five input bytes makes eight output bytes, padding is added so we must round up */
+ len = 8 * (l + 4) / 5;
+ else {
+ /* same, but round down as there is no padding */
+ len = 8 * l / 5;
+
+ switch (l % 5) {
+ case 4:
+ len += 7;
+ break;
+ case 3:
+ len += 5;
+ break;
+ case 2:
+ len += 4;
+ break;
+ case 1:
+ len += 2;
+ break;
+ }
+ }
+
+ z = r = malloc(len + 1);
+ if (!r)
+ return NULL;
+
+ for (x = p; x < (const uint8_t*) p + (l / 5) * 5; x += 5) {
+ /* x[0] == XXXXXXXX; x[1] == YYYYYYYY; x[2] == ZZZZZZZZ
+ x[3] == QQQQQQQQ; x[4] == WWWWWWWW */
+ *(z++) = base32hexchar(x[0] >> 3); /* 000XXXXX */
+ *(z++) = base32hexchar((x[0] & 7) << 2 | x[1] >> 6); /* 000XXXYY */
+ *(z++) = base32hexchar((x[1] & 63) >> 1); /* 000YYYYY */
+ *(z++) = base32hexchar((x[1] & 1) << 4 | x[2] >> 4); /* 000YZZZZ */
+ *(z++) = base32hexchar((x[2] & 15) << 1 | x[3] >> 7); /* 000ZZZZQ */
+ *(z++) = base32hexchar((x[3] & 127) >> 2); /* 000QQQQQ */
+ *(z++) = base32hexchar((x[3] & 3) << 3 | x[4] >> 5); /* 000QQWWW */
+ *(z++) = base32hexchar((x[4] & 31)); /* 000WWWWW */
+ }
+
+ switch (l % 5) {
+ case 4:
+ *(z++) = base32hexchar(x[0] >> 3); /* 000XXXXX */
+ *(z++) = base32hexchar((x[0] & 7) << 2 | x[1] >> 6); /* 000XXXYY */
+ *(z++) = base32hexchar((x[1] & 63) >> 1); /* 000YYYYY */
+ *(z++) = base32hexchar((x[1] & 1) << 4 | x[2] >> 4); /* 000YZZZZ */
+ *(z++) = base32hexchar((x[2] & 15) << 1 | x[3] >> 7); /* 000ZZZZQ */
+ *(z++) = base32hexchar((x[3] & 127) >> 2); /* 000QQQQQ */
+ *(z++) = base32hexchar((x[3] & 3) << 3); /* 000QQ000 */
+ if (padding)
+ *(z++) = '=';
+
+ break;
+
+ case 3:
+ *(z++) = base32hexchar(x[0] >> 3); /* 000XXXXX */
+ *(z++) = base32hexchar((x[0] & 7) << 2 | x[1] >> 6); /* 000XXXYY */
+ *(z++) = base32hexchar((x[1] & 63) >> 1); /* 000YYYYY */
+ *(z++) = base32hexchar((x[1] & 1) << 4 | x[2] >> 4); /* 000YZZZZ */
+ *(z++) = base32hexchar((x[2] & 15) << 1); /* 000ZZZZ0 */
+ if (padding) {
+ *(z++) = '=';
+ *(z++) = '=';
+ *(z++) = '=';
+ }
+
+ break;
+
+ case 2:
+ *(z++) = base32hexchar(x[0] >> 3); /* 000XXXXX */
+ *(z++) = base32hexchar((x[0] & 7) << 2 | x[1] >> 6); /* 000XXXYY */
+ *(z++) = base32hexchar((x[1] & 63) >> 1); /* 000YYYYY */
+ *(z++) = base32hexchar((x[1] & 1) << 4); /* 000Y0000 */
+ if (padding) {
+ *(z++) = '=';
+ *(z++) = '=';
+ *(z++) = '=';
+ *(z++) = '=';
+ }
+
+ break;
+
+ case 1:
+ *(z++) = base32hexchar(x[0] >> 3); /* 000XXXXX */
+ *(z++) = base32hexchar((x[0] & 7) << 2); /* 000XXX00 */
+ if (padding) {
+ *(z++) = '=';
+ *(z++) = '=';
+ *(z++) = '=';
+ *(z++) = '=';
+ *(z++) = '=';
+ *(z++) = '=';
+ }
+
+ break;
+ }
+
+ *z = 0;
+ return r;
+ }
+
+ int unbase32hexmem(const char *p, size_t l, bool padding, void **mem, size_t *_len) {
+ _cleanup_free_ uint8_t *r = NULL;
+ int a, b, c, d, e, f, g, h;
+ uint8_t *z;
+ const char *x;
+ size_t len;
+ unsigned pad = 0;
+
+ assert(p);
+
+ /* padding ensures any base32hex input has input divisible by 8 */
+ if (padding && l % 8 != 0)
+ return -EINVAL;
+
+ if (padding) {
+ /* strip the padding */
+ while (l > 0 && p[l - 1] == '=' && pad < 7) {
+ pad ++;
+ l --;
+ }
+ }
+
+ /* a group of eight input bytes needs five output bytes, in case of
+ padding we need to add some extra bytes */
+ len = (l / 8) * 5;
+
+ switch (l % 8) {
+ case 7:
+ len += 4;
+ break;
+ case 5:
+ len += 3;
+ break;
+ case 4:
+ len += 2;
+ break;
+ case 2:
+ len += 1;
+ break;
+ case 0:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ z = r = malloc(len + 1);
+ if (!r)
+ return -ENOMEM;
+
+ for (x = p; x < p + (l / 8) * 8; x += 8) {
+ /* a == 000XXXXX; b == 000YYYYY; c == 000ZZZZZ; d == 000WWWWW
+ e == 000SSSSS; f == 000QQQQQ; g == 000VVVVV; h == 000RRRRR */
+ a = unbase32hexchar(x[0]);
+ if (a < 0)
+ return -EINVAL;
+
+ b = unbase32hexchar(x[1]);
+ if (b < 0)
+ return -EINVAL;
+
+ c = unbase32hexchar(x[2]);
+ if (c < 0)
+ return -EINVAL;
+
+ d = unbase32hexchar(x[3]);
+ if (d < 0)
+ return -EINVAL;
+
+ e = unbase32hexchar(x[4]);
+ if (e < 0)
+ return -EINVAL;
+
+ f = unbase32hexchar(x[5]);
+ if (f < 0)
+ return -EINVAL;
+
+ g = unbase32hexchar(x[6]);
+ if (g < 0)
+ return -EINVAL;
+
+ h = unbase32hexchar(x[7]);
+ if (h < 0)
+ return -EINVAL;
+
+ *(z++) = (uint8_t) a << 3 | (uint8_t) b >> 2; /* XXXXXYYY */
+ *(z++) = (uint8_t) b << 6 | (uint8_t) c << 1 | (uint8_t) d >> 4; /* YYZZZZZW */
+ *(z++) = (uint8_t) d << 4 | (uint8_t) e >> 1; /* WWWWSSSS */
+ *(z++) = (uint8_t) e << 7 | (uint8_t) f << 2 | (uint8_t) g >> 3; /* SQQQQQVV */
+ *(z++) = (uint8_t) g << 5 | (uint8_t) h; /* VVVRRRRR */
+ }
+
+ switch (l % 8) {
+ case 7:
+ a = unbase32hexchar(x[0]);
+ if (a < 0)
+ return -EINVAL;
+
+ b = unbase32hexchar(x[1]);
+ if (b < 0)
+ return -EINVAL;
+
+ c = unbase32hexchar(x[2]);
+ if (c < 0)
+ return -EINVAL;
+
+ d = unbase32hexchar(x[3]);
+ if (d < 0)
+ return -EINVAL;
+
+ e = unbase32hexchar(x[4]);
+ if (e < 0)
+ return -EINVAL;
+
+ f = unbase32hexchar(x[5]);
+ if (f < 0)
+ return -EINVAL;
+
+ g = unbase32hexchar(x[6]);
+ if (g < 0)
+ return -EINVAL;
+
+ /* g == 000VV000 */
+ if (g & 7)
+ return -EINVAL;
+
+ *(z++) = (uint8_t) a << 3 | (uint8_t) b >> 2; /* XXXXXYYY */
+ *(z++) = (uint8_t) b << 6 | (uint8_t) c << 1 | (uint8_t) d >> 4; /* YYZZZZZW */
+ *(z++) = (uint8_t) d << 4 | (uint8_t) e >> 1; /* WWWWSSSS */
+ *(z++) = (uint8_t) e << 7 | (uint8_t) f << 2 | (uint8_t) g >> 3; /* SQQQQQVV */
+
+ break;
+ case 5:
+ a = unbase32hexchar(x[0]);
+ if (a < 0)
+ return -EINVAL;
+
+ b = unbase32hexchar(x[1]);
+ if (b < 0)
+ return -EINVAL;
+
+ c = unbase32hexchar(x[2]);
+ if (c < 0)
+ return -EINVAL;
+
+ d = unbase32hexchar(x[3]);
+ if (d < 0)
+ return -EINVAL;
+
+ e = unbase32hexchar(x[4]);
+ if (e < 0)
+ return -EINVAL;
+
+ /* e == 000SSSS0 */
+ if (e & 1)
+ return -EINVAL;
+
+ *(z++) = (uint8_t) a << 3 | (uint8_t) b >> 2; /* XXXXXYYY */
+ *(z++) = (uint8_t) b << 6 | (uint8_t) c << 1 | (uint8_t) d >> 4; /* YYZZZZZW */
+ *(z++) = (uint8_t) d << 4 | (uint8_t) e >> 1; /* WWWWSSSS */
+
+ break;
+ case 4:
+ a = unbase32hexchar(x[0]);
+ if (a < 0)
+ return -EINVAL;
+
+ b = unbase32hexchar(x[1]);
+ if (b < 0)
+ return -EINVAL;
+
+ c = unbase32hexchar(x[2]);
+ if (c < 0)
+ return -EINVAL;
+
+ d = unbase32hexchar(x[3]);
+ if (d < 0)
+ return -EINVAL;
+
+ /* d == 000W0000 */
+ if (d & 15)
+ return -EINVAL;
+
+ *(z++) = (uint8_t) a << 3 | (uint8_t) b >> 2; /* XXXXXYYY */
+ *(z++) = (uint8_t) b << 6 | (uint8_t) c << 1 | (uint8_t) d >> 4; /* YYZZZZZW */
+
+ break;
+ case 2:
+ a = unbase32hexchar(x[0]);
+ if (a < 0)
+ return -EINVAL;
+
+ b = unbase32hexchar(x[1]);
+ if (b < 0)
+ return -EINVAL;
+
+ /* b == 000YYY00 */
+ if (b & 3)
+ return -EINVAL;
+
+ *(z++) = (uint8_t) a << 3 | (uint8_t) b >> 2; /* XXXXXYYY */
+
+ break;
+ case 0:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ *z = 0;
+
+ *mem = r;
+ r = NULL;
+ *_len = len;
+
+ return 0;
+ }
+
+ /* https://tools.ietf.org/html/rfc4648#section-4 */
+ char base64char(int x) {
+ static const char table[64] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "abcdefghijklmnopqrstuvwxyz"
+ "0123456789+/";
+ return table[x & 63];
+ }
+
+ int unbase64char(char c) {
+ unsigned offset;
+
+ if (c >= 'A' && c <= 'Z')
+ return c - 'A';
+
+ offset = 'Z' - 'A' + 1;
+
+ if (c >= 'a' && c <= 'z')
+ return c - 'a' + offset;
+
+ offset += 'z' - 'a' + 1;
+
+ if (c >= '0' && c <= '9')
+ return c - '0' + offset;
+
+ offset += '9' - '0' + 1;
+
+ if (c == '+')
+ return offset;
+
+ offset ++;
+
+ if (c == '/')
+ return offset;
+
+ return -EINVAL;
+ }
+
+ char *base64mem(const void *p, size_t l) {
+ char *r, *z;
+ const uint8_t *x;
+
+ /* three input bytes makes four output bytes, padding is added so we must round up */
+ z = r = malloc(4 * (l + 2) / 3 + 1);
+ if (!r)
+ return NULL;
+
+ for (x = p; x < (const uint8_t*) p + (l / 3) * 3; x += 3) {
+ /* x[0] == XXXXXXXX; x[1] == YYYYYYYY; x[2] == ZZZZZZZZ */
+ *(z++) = base64char(x[0] >> 2); /* 00XXXXXX */
+ *(z++) = base64char((x[0] & 3) << 4 | x[1] >> 4); /* 00XXYYYY */
+ *(z++) = base64char((x[1] & 15) << 2 | x[2] >> 6); /* 00YYYYZZ */
+ *(z++) = base64char(x[2] & 63); /* 00ZZZZZZ */
+ }
+
+ switch (l % 3) {
+ case 2:
+ *(z++) = base64char(x[0] >> 2); /* 00XXXXXX */
+ *(z++) = base64char((x[0] & 3) << 4 | x[1] >> 4); /* 00XXYYYY */
+ *(z++) = base64char((x[1] & 15) << 2); /* 00YYYY00 */
+ *(z++) = '=';
+
+ break;
+ case 1:
+ *(z++) = base64char(x[0] >> 2); /* 00XXXXXX */
+ *(z++) = base64char((x[0] & 3) << 4); /* 00XX0000 */
+ *(z++) = '=';
+ *(z++) = '=';
+
+ break;
+ }
+
+ *z = 0;
+ return r;
+ }
+
+ int unbase64mem(const char *p, size_t l, void **mem, size_t *_len) {
+ _cleanup_free_ uint8_t *r = NULL;
+ int a, b, c, d;
+ uint8_t *z;
+ const char *x;
+ size_t len;
+
+ assert(p);
+
+ /* padding ensures any base63 input has input divisible by 4 */
+ if (l % 4 != 0)
+ return -EINVAL;
+
+ /* strip the padding */
+ if (l > 0 && p[l - 1] == '=')
+ l --;
+ if (l > 0 && p[l - 1] == '=')
+ l --;
+
+ /* a group of four input bytes needs three output bytes, in case of
+ padding we need to add two or three extra bytes */
+ len = (l / 4) * 3 + (l % 4 ? (l % 4) - 1 : 0);
+
+ z = r = malloc(len + 1);
+ if (!r)
+ return -ENOMEM;
+
+ for (x = p; x < p + (l / 4) * 4; x += 4) {
+ /* a == 00XXXXXX; b == 00YYYYYY; c == 00ZZZZZZ; d == 00WWWWWW */
+ a = unbase64char(x[0]);
+ if (a < 0)
+ return -EINVAL;
+
+ b = unbase64char(x[1]);
+ if (b < 0)
+ return -EINVAL;
+
+ c = unbase64char(x[2]);
+ if (c < 0)
+ return -EINVAL;
+
+ d = unbase64char(x[3]);
+ if (d < 0)
+ return -EINVAL;
+
+ *(z++) = (uint8_t) a << 2 | (uint8_t) b >> 4; /* XXXXXXYY */
+ *(z++) = (uint8_t) b << 4 | (uint8_t) c >> 2; /* YYYYZZZZ */
+ *(z++) = (uint8_t) c << 6 | (uint8_t) d; /* ZZWWWWWW */
+ }
+
+ switch (l % 4) {
+ case 3:
+ a = unbase64char(x[0]);
+ if (a < 0)
+ return -EINVAL;
+
+ b = unbase64char(x[1]);
+ if (b < 0)
+ return -EINVAL;
+
+ c = unbase64char(x[2]);
+ if (c < 0)
+ return -EINVAL;
+
+ /* c == 00ZZZZ00 */
+ if (c & 3)
+ return -EINVAL;
+
+ *(z++) = (uint8_t) a << 2 | (uint8_t) b >> 4; /* XXXXXXYY */
+ *(z++) = (uint8_t) b << 4 | (uint8_t) c >> 2; /* YYYYZZZZ */
+
+ break;
+ case 2:
+ a = unbase64char(x[0]);
+ if (a < 0)
+ return -EINVAL;
+
+ b = unbase64char(x[1]);
+ if (b < 0)
+ return -EINVAL;
+
+ /* b == 00YY0000 */
+ if (b & 15)
+ return -EINVAL;
+
+ *(z++) = (uint8_t) a << 2 | (uint8_t) (b >> 4); /* XXXXXXYY */
+
+ break;
+ case 0:
+
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ *z = 0;
+
+ *mem = r;
+ r = NULL;
+ *_len = len;
+
+ return 0;
+ }
+
+ void hexdump(FILE *f, const void *p, size_t s) {
+ const uint8_t *b = p;
+ unsigned n = 0;
+
+ assert(s == 0 || b);
+
+ while (s > 0) {
+ size_t i;
+
+ fprintf(f, "%04x ", n);
+
+ for (i = 0; i < 16; i++) {
+
+ if (i >= s)
+ fputs(" ", f);
+ else
+ fprintf(f, "%02x ", b[i]);
+
+ if (i == 7)
+ fputc(' ', f);
+ }
+
+ fputc(' ', f);
+
+ for (i = 0; i < 16; i++) {
+
+ if (i >= s)
+ fputc(' ', f);
+ else
+ fputc(isprint(b[i]) ? (char) b[i] : '.', f);
+ }
+
+ fputc('\n', f);
+
+ if (s < 16)
+ break;
+
+ n += 16;
+ b += 16;
+ s -= 16;
+ }
+ }
--- /dev/null
+ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+ #pragma once
+
+ /***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
++#include "nm-sd-adapt.h"
++
+ #include <stdbool.h>
+ #include <stdio.h>
+ #include <sys/types.h>
+
+ #include "macro.h"
+
+ char octchar(int x) _const_;
+ int unoctchar(char c) _const_;
+
+ char decchar(int x) _const_;
+ int undecchar(char c) _const_;
+
+ char hexchar(int x) _const_;
+ int unhexchar(char c) _const_;
+
+ char *hexmem(const void *p, size_t l);
+ int unhexmem(const char *p, size_t l, void **mem, size_t *len);
+
+ char base32hexchar(int x) _const_;
+ int unbase32hexchar(char c) _const_;
+
+ char base64char(int x) _const_;
+ int unbase64char(char c) _const_;
+
+ char *base32hexmem(const void *p, size_t l, bool padding);
+ int unbase32hexmem(const char *p, size_t l, bool padding, void **mem, size_t *len);
+
+ char *base64mem(const void *p, size_t l);
+ int unbase64mem(const char *p, size_t l, void **mem, size_t *len);
+
+ void hexdump(FILE *f, const void *p, size_t s);
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <sys/utsname.h>
+#include "nm-sd-adapt.h"
+
#include <ctype.h>
+ #include <sys/utsname.h>
- #include "util.h"
+ #include "fd-util.h"
+ #include "fileio.h"
#include "hostname-util.h"
+ #include "string-util.h"
+ #include "util.h"
bool hostname_is_set(void) {
struct utsname u;
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "nm-sd-adapt.h"
+
#include <arpa/inet.h>
+ #include "alloc-util.h"
#include "in-addr-util.h"
int in_addr_is_null(int family, const union in_addr_union *u) {
--- /dev/null
+ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+ /***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
++#include "nm-sd-adapt.h"
++
+ #include <poll.h>
+ #include <unistd.h>
+
+ #include "io-util.h"
+
+ int flush_fd(int fd) {
+ struct pollfd pollfd = {
+ .fd = fd,
+ .events = POLLIN,
+ };
+
+ for (;;) {
+ char buf[LINE_MAX];
+ ssize_t l;
+ int r;
+
+ r = poll(&pollfd, 1, 0);
+ if (r < 0) {
+ if (errno == EINTR)
+ continue;
+
+ return -errno;
+
+ } else if (r == 0)
+ return 0;
+
+ l = read(fd, buf, sizeof(buf));
+ if (l < 0) {
+
+ if (errno == EINTR)
+ continue;
+
+ if (errno == EAGAIN)
+ return 0;
+
+ return -errno;
+ } else if (l == 0)
+ return 0;
+ }
+ }
+
+ ssize_t loop_read(int fd, void *buf, size_t nbytes, bool do_poll) {
+ uint8_t *p = buf;
+ ssize_t n = 0;
+
+ assert(fd >= 0);
+ assert(buf);
+
+ /* If called with nbytes == 0, let's call read() at least
+ * once, to validate the operation */
+
+ if (nbytes > (size_t) SSIZE_MAX)
+ return -EINVAL;
+
+ do {
+ ssize_t k;
+
+ k = read(fd, p, nbytes);
+ if (k < 0) {
+ if (errno == EINTR)
+ continue;
+
+ if (errno == EAGAIN && do_poll) {
+
+ /* We knowingly ignore any return value here,
+ * and expect that any error/EOF is reported
+ * via read() */
+
+ (void) fd_wait_for_event(fd, POLLIN, USEC_INFINITY);
+ continue;
+ }
+
+ return n > 0 ? n : -errno;
+ }
+
+ if (k == 0)
+ return n;
+
+ assert((size_t) k <= nbytes);
+
+ p += k;
+ nbytes -= k;
+ n += k;
+ } while (nbytes > 0);
+
+ return n;
+ }
+
+ int loop_read_exact(int fd, void *buf, size_t nbytes, bool do_poll) {
+ ssize_t n;
+
+ n = loop_read(fd, buf, nbytes, do_poll);
+ if (n < 0)
+ return (int) n;
+ if ((size_t) n != nbytes)
+ return -EIO;
+
+ return 0;
+ }
+
+ int loop_write(int fd, const void *buf, size_t nbytes, bool do_poll) {
+ const uint8_t *p = buf;
+
+ assert(fd >= 0);
+ assert(buf);
+
+ if (nbytes > (size_t) SSIZE_MAX)
+ return -EINVAL;
+
+ do {
+ ssize_t k;
+
+ k = write(fd, p, nbytes);
+ if (k < 0) {
+ if (errno == EINTR)
+ continue;
+
+ if (errno == EAGAIN && do_poll) {
+ /* We knowingly ignore any return value here,
+ * and expect that any error/EOF is reported
+ * via write() */
+
+ (void) fd_wait_for_event(fd, POLLOUT, USEC_INFINITY);
+ continue;
+ }
+
+ return -errno;
+ }
+
+ if (_unlikely_(nbytes > 0 && k == 0)) /* Can't really happen */
+ return -EIO;
+
+ assert((size_t) k <= nbytes);
+
+ p += k;
+ nbytes -= k;
+ } while (nbytes > 0);
+
+ return 0;
+ }
+
+ int pipe_eof(int fd) {
+ struct pollfd pollfd = {
+ .fd = fd,
+ .events = POLLIN|POLLHUP,
+ };
+
+ int r;
+
+ r = poll(&pollfd, 1, 0);
+ if (r < 0)
+ return -errno;
+
+ if (r == 0)
+ return 0;
+
+ return pollfd.revents & POLLHUP;
+ }
+
+ int fd_wait_for_event(int fd, int event, usec_t t) {
+
+ struct pollfd pollfd = {
+ .fd = fd,
+ .events = event,
+ };
+
+ struct timespec ts;
+ int r;
+
+ r = ppoll(&pollfd, 1, t == USEC_INFINITY ? NULL : timespec_store(&ts, t), NULL);
+ if (r < 0)
+ return -errno;
+
+ if (r == 0)
+ return 0;
+
+ return pollfd.revents;
+ }
+
+ static size_t nul_length(const uint8_t *p, size_t sz) {
+ size_t n = 0;
+
+ while (sz > 0) {
+ if (*p != 0)
+ break;
+
+ n++;
+ p++;
+ sz--;
+ }
+
+ return n;
+ }
+
+ ssize_t sparse_write(int fd, const void *p, size_t sz, size_t run_length) {
+ const uint8_t *q, *w, *e;
+ ssize_t l;
+
+ q = w = p;
+ e = q + sz;
+ while (q < e) {
+ size_t n;
+
+ n = nul_length(q, e - q);
+
+ /* If there are more than the specified run length of
+ * NUL bytes, or if this is the beginning or the end
+ * of the buffer, then seek instead of write */
+ if ((n > run_length) ||
+ (n > 0 && q == p) ||
+ (n > 0 && q + n >= e)) {
+ if (q > w) {
+ l = write(fd, w, q - w);
+ if (l < 0)
+ return -errno;
+ if (l != q -w)
+ return -EIO;
+ }
+
+ if (lseek(fd, n, SEEK_CUR) == (off_t) -1)
+ return -errno;
+
+ q += n;
+ w = q;
+ } else if (n > 0)
+ q += n;
+ else
+ q ++;
+ }
+
+ if (q > w) {
+ l = write(fd, w, q - w);
+ if (l < 0)
+ return -errno;
+ if (l != q - w)
+ return -EIO;
+ }
+
+ return q - (const uint8_t*) p;
+ }
--- /dev/null
+ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+ #pragma once
+
+ /***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
++#include "nm-sd-adapt.h"
++
+ #include <stdbool.h>
+ #include <sys/types.h>
+ #include <sys/uio.h>
+
+ #include "time-util.h"
+
+ int flush_fd(int fd);
+
+ ssize_t loop_read(int fd, void *buf, size_t nbytes, bool do_poll);
+ int loop_read_exact(int fd, void *buf, size_t nbytes, bool do_poll);
+ int loop_write(int fd, const void *buf, size_t nbytes, bool do_poll);
+
+ int pipe_eof(int fd);
+
+ int fd_wait_for_event(int fd, int event, usec_t timeout);
+
+ ssize_t sparse_write(int fd, const void *p, size_t sz, size_t run_length);
+
+ #define IOVEC_SET_STRING(i, s) \
+ do { \
+ struct iovec *_i = &(i); \
+ char *_s = (char *)(s); \
+ _i->iov_base = _s; \
+ _i->iov_len = strlen(_s); \
+ } while(false)
+
+ static inline size_t IOVEC_TOTAL_SIZE(const struct iovec *i, unsigned n) {
+ unsigned j;
+ size_t r = 0;
+
+ for (j = 0; j < n; j++)
+ r += i[j].iov_len;
+
+ return r;
+ }
+
+ static inline size_t IOVEC_INCREMENT(struct iovec *i, unsigned n, size_t k) {
+ unsigned j;
+
+ for (j = 0; j < n; j++) {
+ size_t sub;
+
+ if (_unlikely_(k <= 0))
+ break;
+
+ sub = MIN(i[j].iov_len, k);
+ i[j].iov_len -= sub;
+ i[j].iov_base = (uint8_t*) i[j].iov_base + sub;
+ k -= sub;
+ }
+
+ return k;
+ }
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <stdbool.h>
+#include "nm-sd-adapt.h"
+
+ #include <errno.h>
#include <stdarg.h>
+ #include <stdbool.h>
#include <stdlib.h>
- #include <syslog.h>
#include <sys/signalfd.h>
- #include <errno.h>
+ #include <syslog.h>
#include "sd-id128.h"
+
#include "macro.h"
typedef enum LogTarget{
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "nm-sd-adapt.h"
+
#include <assert.h>
- #include <sys/param.h>
- #include <sys/types.h>
- #include <sys/uio.h>
#include <inttypes.h>
#include <stdbool.h>
+ #include <sys/param.h>
+ #include <sys/types.h>
#define _printf_(a,b) __attribute__ ((format (printf, a, b)))
#define _alloc_(...) __attribute__ ((alloc_size(__VA_ARGS__)))
#define noreturn __attribute__((noreturn))
#endif
#endif
-
- #define UID_INVALID ((uid_t) -1)
- #define GID_INVALID ((gid_t) -1)
- #define MODE_INVALID ((mode_t) -1)
+#endif /* NM_IGNORED */
#define DEFINE_TRIVIAL_CLEANUP_FUNC(type, func) \
static inline void func##p(type *p) { \
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include "mempool.h"
+#include "nm-sd-adapt.h"
+
#include "macro.h"
+ #include "mempool.h"
#include "util.h"
struct pool {
--- /dev/null
+ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+ /***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
++#include "nm-sd-adapt.h"
++
+ #include "alloc-util.h"
++#if 0 /* NM_IGNORED */
+ #include "extract-word.h"
++#endif /* NM_IGNORED */
+ #include "parse-util.h"
+ #include "string-util.h"
+ #include "util.h"
+
+ int parse_boolean(const char *v) {
+ assert(v);
+
+ if (streq(v, "1") || strcaseeq(v, "yes") || strcaseeq(v, "y") || strcaseeq(v, "true") || strcaseeq(v, "t") || strcaseeq(v, "on"))
+ return 1;
+ else if (streq(v, "0") || strcaseeq(v, "no") || strcaseeq(v, "n") || strcaseeq(v, "false") || strcaseeq(v, "f") || strcaseeq(v, "off"))
+ return 0;
+
+ return -EINVAL;
+ }
+
+ int parse_pid(const char *s, pid_t* ret_pid) {
+ unsigned long ul = 0;
+ pid_t pid;
+ int r;
+
+ assert(s);
+ assert(ret_pid);
+
+ r = safe_atolu(s, &ul);
+ if (r < 0)
+ return r;
+
+ pid = (pid_t) ul;
+
+ if ((unsigned long) pid != ul)
+ return -ERANGE;
+
+ if (pid <= 0)
+ return -ERANGE;
+
+ *ret_pid = pid;
+ return 0;
+ }
+
+ int parse_mode(const char *s, mode_t *ret) {
+ char *x;
+ long l;
+
+ assert(s);
+ assert(ret);
+
+ s += strspn(s, WHITESPACE);
+ if (s[0] == '-')
+ return -ERANGE;
+
+ errno = 0;
+ l = strtol(s, &x, 8);
+ if (errno != 0)
+ return -errno;
+ if (!x || x == s || *x)
+ return -EINVAL;
+ if (l < 0 || l > 07777)
+ return -ERANGE;
+
+ *ret = (mode_t) l;
+ return 0;
+ }
+
+ int parse_ifindex(const char *s, int *ret) {
+ int ifi, r;
+
+ r = safe_atoi(s, &ifi);
+ if (r < 0)
+ return r;
+ if (ifi <= 0)
+ return -EINVAL;
+
+ *ret = ifi;
+ return 0;
+ }
+
+ int parse_size(const char *t, uint64_t base, uint64_t *size) {
+
+ /* Soo, sometimes we want to parse IEC binary suffixes, and
+ * sometimes SI decimal suffixes. This function can parse
+ * both. Which one is the right way depends on the
+ * context. Wikipedia suggests that SI is customary for
+ * hardware metrics and network speeds, while IEC is
+ * customary for most data sizes used by software and volatile
+ * (RAM) memory. Hence be careful which one you pick!
+ *
+ * In either case we use just K, M, G as suffix, and not Ki,
+ * Mi, Gi or so (as IEC would suggest). That's because that's
+ * frickin' ugly. But this means you really need to make sure
+ * to document which base you are parsing when you use this
+ * call. */
+
+ struct table {
+ const char *suffix;
+ unsigned long long factor;
+ };
+
+ static const struct table iec[] = {
+ { "E", 1024ULL*1024ULL*1024ULL*1024ULL*1024ULL*1024ULL },
+ { "P", 1024ULL*1024ULL*1024ULL*1024ULL*1024ULL },
+ { "T", 1024ULL*1024ULL*1024ULL*1024ULL },
+ { "G", 1024ULL*1024ULL*1024ULL },
+ { "M", 1024ULL*1024ULL },
+ { "K", 1024ULL },
+ { "B", 1ULL },
+ { "", 1ULL },
+ };
+
+ static const struct table si[] = {
+ { "E", 1000ULL*1000ULL*1000ULL*1000ULL*1000ULL*1000ULL },
+ { "P", 1000ULL*1000ULL*1000ULL*1000ULL*1000ULL },
+ { "T", 1000ULL*1000ULL*1000ULL*1000ULL },
+ { "G", 1000ULL*1000ULL*1000ULL },
+ { "M", 1000ULL*1000ULL },
+ { "K", 1000ULL },
+ { "B", 1ULL },
+ { "", 1ULL },
+ };
+
+ const struct table *table;
+ const char *p;
+ unsigned long long r = 0;
+ unsigned n_entries, start_pos = 0;
+
+ assert(t);
+ assert(base == 1000 || base == 1024);
+ assert(size);
+
+ if (base == 1000) {
+ table = si;
+ n_entries = ELEMENTSOF(si);
+ } else {
+ table = iec;
+ n_entries = ELEMENTSOF(iec);
+ }
+
+ p = t;
+ do {
+ unsigned long long l, tmp;
+ double frac = 0;
+ char *e;
+ unsigned i;
+
+ p += strspn(p, WHITESPACE);
+
+ errno = 0;
+ l = strtoull(p, &e, 10);
+ if (errno != 0)
+ return -errno;
+ if (e == p)
+ return -EINVAL;
+ if (*p == '-')
+ return -ERANGE;
+
+ if (*e == '.') {
+ e++;
+
+ /* strtoull() itself would accept space/+/- */
+ if (*e >= '0' && *e <= '9') {
+ unsigned long long l2;
+ char *e2;
+
+ l2 = strtoull(e, &e2, 10);
+ if (errno != 0)
+ return -errno;
+
+ /* Ignore failure. E.g. 10.M is valid */
+ frac = l2;
+ for (; e < e2; e++)
+ frac /= 10;
+ }
+ }
+
+ e += strspn(e, WHITESPACE);
+
+ for (i = start_pos; i < n_entries; i++)
+ if (startswith(e, table[i].suffix))
+ break;
+
+ if (i >= n_entries)
+ return -EINVAL;
+
+ if (l + (frac > 0) > ULLONG_MAX / table[i].factor)
+ return -ERANGE;
+
+ tmp = l * table[i].factor + (unsigned long long) (frac * table[i].factor);
+ if (tmp > ULLONG_MAX - r)
+ return -ERANGE;
+
+ r += tmp;
+ if ((unsigned long long) (uint64_t) r != r)
+ return -ERANGE;
+
+ p = e + strlen(table[i].suffix);
+
+ start_pos = i + 1;
+
+ } while (*p);
+
+ *size = r;
+
+ return 0;
+ }
+
++#if 0 /* NM_IGNORED */
+ int parse_range(const char *t, unsigned *lower, unsigned *upper) {
+ _cleanup_free_ char *word = NULL;
+ unsigned l, u;
+ int r;
+
+ assert(lower);
+ assert(upper);
+
+ /* Extract the lower bound. */
+ r = extract_first_word(&t, &word, "-", EXTRACT_DONT_COALESCE_SEPARATORS);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return -EINVAL;
+
+ r = safe_atou(word, &l);
+ if (r < 0)
+ return r;
+
+ /* Check for the upper bound and extract it if needed */
+ if (!t)
+ /* Single number with no dashes. */
+ u = l;
+ else if (!*t)
+ /* Trailing dash is an error. */
+ return -EINVAL;
+ else {
+ r = safe_atou(t, &u);
+ if (r < 0)
+ return r;
+ }
+
+ *lower = l;
+ *upper = u;
+ return 0;
+ }
++#endif /* NM_IGNORED */
+
+ char *format_bytes(char *buf, size_t l, uint64_t t) {
+ unsigned i;
+
+ /* This only does IEC units so far */
+
+ static const struct {
+ const char *suffix;
+ uint64_t factor;
+ } table[] = {
+ { "E", UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024) },
+ { "P", UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024) },
+ { "T", UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024) },
+ { "G", UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024) },
+ { "M", UINT64_C(1024)*UINT64_C(1024) },
+ { "K", UINT64_C(1024) },
+ };
+
+ if (t == (uint64_t) -1)
+ return NULL;
+
+ for (i = 0; i < ELEMENTSOF(table); i++) {
+
+ if (t >= table[i].factor) {
+ snprintf(buf, l,
+ "%" PRIu64 ".%" PRIu64 "%s",
+ t / table[i].factor,
+ ((t*UINT64_C(10)) / table[i].factor) % UINT64_C(10),
+ table[i].suffix);
+
+ goto finish;
+ }
+ }
+
+ snprintf(buf, l, "%" PRIu64 "B", t);
+
+ finish:
+ buf[l-1] = 0;
+ return buf;
+
+ }
+
+ int safe_atou(const char *s, unsigned *ret_u) {
+ char *x = NULL;
+ unsigned long l;
+
+ assert(s);
+ assert(ret_u);
+
+ /* strtoul() is happy to parse negative values, and silently
+ * converts them to unsigned values without generating an
+ * error. We want a clean error, hence let's look for the "-"
+ * prefix on our own, and generate an error. But let's do so
+ * only after strtoul() validated that the string is clean
+ * otherwise, so that we return EINVAL preferably over
+ * ERANGE. */
+
+ s += strspn(s, WHITESPACE);
+
+ errno = 0;
+ l = strtoul(s, &x, 0);
+ if (errno != 0)
+ return -errno;
+ if (!x || x == s || *x)
+ return -EINVAL;
+ if (s[0] == '-')
+ return -ERANGE;
+ if ((unsigned long) (unsigned) l != l)
+ return -ERANGE;
+
+ *ret_u = (unsigned) l;
+ return 0;
+ }
+
+ int safe_atoi(const char *s, int *ret_i) {
+ char *x = NULL;
+ long l;
+
+ assert(s);
+ assert(ret_i);
+
+ errno = 0;
+ l = strtol(s, &x, 0);
+ if (errno != 0)
+ return -errno;
+ if (!x || x == s || *x)
+ return -EINVAL;
+ if ((long) (int) l != l)
+ return -ERANGE;
+
+ *ret_i = (int) l;
+ return 0;
+ }
+
+ int safe_atollu(const char *s, long long unsigned *ret_llu) {
+ char *x = NULL;
+ unsigned long long l;
+
+ assert(s);
+ assert(ret_llu);
+
+ s += strspn(s, WHITESPACE);
+
+ errno = 0;
+ l = strtoull(s, &x, 0);
+ if (errno != 0)
+ return -errno;
+ if (!x || x == s || *x)
+ return -EINVAL;
+ if (*s == '-')
+ return -ERANGE;
+
+ *ret_llu = l;
+ return 0;
+ }
+
+ int safe_atolli(const char *s, long long int *ret_lli) {
+ char *x = NULL;
+ long long l;
+
+ assert(s);
+ assert(ret_lli);
+
+ errno = 0;
+ l = strtoll(s, &x, 0);
+ if (errno != 0)
+ return -errno;
+ if (!x || x == s || *x)
+ return -EINVAL;
+
+ *ret_lli = l;
+ return 0;
+ }
+
+ int safe_atou8(const char *s, uint8_t *ret) {
+ char *x = NULL;
+ unsigned long l;
+
+ assert(s);
+ assert(ret);
+
+ s += strspn(s, WHITESPACE);
+
+ errno = 0;
+ l = strtoul(s, &x, 0);
+ if (errno != 0)
+ return -errno;
+ if (!x || x == s || *x)
+ return -EINVAL;
+ if (s[0] == '-')
+ return -ERANGE;
+ if ((unsigned long) (uint8_t) l != l)
+ return -ERANGE;
+
+ *ret = (uint8_t) l;
+ return 0;
+ }
+
+ int safe_atou16(const char *s, uint16_t *ret) {
+ char *x = NULL;
+ unsigned long l;
+
+ assert(s);
+ assert(ret);
+
+ s += strspn(s, WHITESPACE);
+
+ errno = 0;
+ l = strtoul(s, &x, 0);
+ if (errno != 0)
+ return -errno;
+ if (!x || x == s || *x)
+ return -EINVAL;
+ if (s[0] == '-')
+ return -ERANGE;
+ if ((unsigned long) (uint16_t) l != l)
+ return -ERANGE;
+
+ *ret = (uint16_t) l;
+ return 0;
+ }
+
+ int safe_atoi16(const char *s, int16_t *ret) {
+ char *x = NULL;
+ long l;
+
+ assert(s);
+ assert(ret);
+
+ errno = 0;
+ l = strtol(s, &x, 0);
+ if (errno != 0)
+ return -errno;
+ if (!x || x == s || *x)
+ return -EINVAL;
+ if ((long) (int16_t) l != l)
+ return -ERANGE;
+
+ *ret = (int16_t) l;
+ return 0;
+ }
+
+ int safe_atod(const char *s, double *ret_d) {
+ char *x = NULL;
+ double d = 0;
+ locale_t loc;
+
+ assert(s);
+ assert(ret_d);
+
+ loc = newlocale(LC_NUMERIC_MASK, "C", (locale_t) 0);
+ if (loc == (locale_t) 0)
+ return -errno;
+
+ errno = 0;
+ d = strtod_l(s, &x, loc);
+ if (errno != 0) {
+ freelocale(loc);
+ return -errno;
+ }
+ if (!x || x == s || *x) {
+ freelocale(loc);
+ return -EINVAL;
+ }
+
+ freelocale(loc);
+ *ret_d = (double) d;
+ return 0;
+ }
+
+ int parse_fractional_part_u(const char **p, size_t digits, unsigned *res) {
+ size_t i;
+ unsigned val = 0;
+ const char *s;
+
+ s = *p;
+
+ /* accept any number of digits, strtoull is limted to 19 */
+ for(i=0; i < digits; i++,s++) {
+ if (*s < '0' || *s > '9') {
+ if (i == 0)
+ return -EINVAL;
+
+ /* too few digits, pad with 0 */
+ for (; i < digits; i++)
+ val *= 10;
+
+ break;
+ }
+
+ val *= 10;
+ val += *s - '0';
+ }
+
+ /* maybe round up */
+ if (*s >= '5' && *s <= '9')
+ val++;
+
+ s += strspn(s, DIGITS);
+
+ *p = s;
+ *res = val;
+
+ return 0;
+ }
--- /dev/null
+ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+ #pragma once
+
+ /***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
++#include "nm-sd-adapt.h"
++
+ #include <inttypes.h>
+ #include <sys/types.h>
+
+ #include "macro.h"
+
+ #define MODE_INVALID ((mode_t) -1)
+
+ int parse_boolean(const char *v) _pure_;
+ int parse_pid(const char *s, pid_t* ret_pid);
+ int parse_mode(const char *s, mode_t *ret);
+ int parse_ifindex(const char *s, int *ret);
+
+ int parse_size(const char *t, uint64_t base, uint64_t *size);
+ int parse_range(const char *t, unsigned *lower, unsigned *upper);
+
+ #define FORMAT_BYTES_MAX 8
+ char *format_bytes(char *buf, size_t l, uint64_t t);
+
+ int safe_atou(const char *s, unsigned *ret_u);
+ int safe_atoi(const char *s, int *ret_i);
+ int safe_atollu(const char *s, unsigned long long *ret_u);
+ int safe_atolli(const char *s, long long int *ret_i);
+
+ int safe_atou8(const char *s, uint8_t *ret);
+
+ int safe_atou16(const char *s, uint16_t *ret);
+ int safe_atoi16(const char *s, int16_t *ret);
+
+ static inline int safe_atou32(const char *s, uint32_t *ret_u) {
+ assert_cc(sizeof(uint32_t) == sizeof(unsigned));
+ return safe_atou(s, (unsigned*) ret_u);
+ }
+
+ static inline int safe_atoi32(const char *s, int32_t *ret_i) {
+ assert_cc(sizeof(int32_t) == sizeof(int));
+ return safe_atoi(s, (int*) ret_i);
+ }
+
+ static inline int safe_atou64(const char *s, uint64_t *ret_u) {
+ assert_cc(sizeof(uint64_t) == sizeof(unsigned long long));
+ return safe_atollu(s, (unsigned long long*) ret_u);
+ }
+
+ static inline int safe_atoi64(const char *s, int64_t *ret_i) {
+ assert_cc(sizeof(int64_t) == sizeof(long long int));
+ return safe_atolli(s, (long long int*) ret_i);
+ }
+
+ #if LONG_MAX == INT_MAX
+ static inline int safe_atolu(const char *s, unsigned long *ret_u) {
+ assert_cc(sizeof(unsigned long) == sizeof(unsigned));
+ return safe_atou(s, (unsigned*) ret_u);
+ }
+ static inline int safe_atoli(const char *s, long int *ret_u) {
+ assert_cc(sizeof(long int) == sizeof(int));
+ return safe_atoi(s, (int*) ret_u);
+ }
+ #else
+ static inline int safe_atolu(const char *s, unsigned long *ret_u) {
+ assert_cc(sizeof(unsigned long) == sizeof(unsigned long long));
+ return safe_atollu(s, (unsigned long long*) ret_u);
+ }
+ static inline int safe_atoli(const char *s, long int *ret_u) {
+ assert_cc(sizeof(long int) == sizeof(long long int));
+ return safe_atolli(s, (long long int*) ret_u);
+ }
+ #endif
+
+ int safe_atod(const char *s, double *ret_d);
+
+ int parse_fractional_part_u(const char **s, size_t digits, unsigned *res);
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #if 0 /* NM_IGNORED */
- #include <string.h>
- #include <unistd.h>
+#include "nm-sd-adapt.h"
+
#include <errno.h>
- #include <stdlib.h>
- #include <stdio.h>
#include <fcntl.h>
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <string.h>
#include <sys/statvfs.h>
+ #include <unistd.h>
- #include "macro.h"
- #include "util.h"
+ /* When we include libgen.h because we need dirname() we immediately
+ * undefine basename() since libgen.h defines it as a macro to the
+ * POSIX version which is really broken. We prefer GNU basename(). */
+ #include <libgen.h>
+ #undef basename
+
+ #include "alloc-util.h"
++#if 0 /* NM_IGNORED */
+ #include "fd-util.h"
+ #include "fileio.h"
+ #include "fs-util.h"
#include "log.h"
- #include "strv.h"
+ #include "macro.h"
+ #include "missing.h"
+ #include "parse-util.h"
+#endif /* NM_IGNORED */
#include "path-util.h"
- #include "missing.h"
- #include "fileio.h"
+#if 0 /* NM_IGNORED */
+ #include "stat-util.h"
++#endif /* NM_IGNORED */
+ #include "string-util.h"
++#if 0 /* NM_IGNORED */
+ #include "strv.h"
++#endif /* NM_IGNORED */
+ #include "util.h"
++#if 0 /* NM_IGNORED */
bool path_is_absolute(const char *p) {
return p[0] == '/';
}
strcpy(p, path);
return n;
}
+
+ int parse_path_argument_and_warn(const char *path, bool suppress_root, char **arg) {
+ char *p;
+ int r;
+
+ /*
+ * This function is intended to be used in command line
+ * parsers, to handle paths that are passed in. It makes the
+ * path absolute, and reduces it to NULL if omitted or
+ * root (the latter optionally).
+ *
+ * NOTE THAT THIS WILL FREE THE PREVIOUS ARGUMENT POINTER ON
+ * SUCCESS! Hence, do not pass in uninitialized pointers.
+ */
+
+ if (isempty(path)) {
+ *arg = mfree(*arg);
+ return 0;
+ }
+
+ r = path_make_absolute_cwd(path, &p);
+ if (r < 0)
+ return log_error_errno(r, "Failed to parse path \"%s\" and make it absolute: %m", path);
+
+ path_kill_slashes(p);
+ if (suppress_root && path_equal(p, "/"))
+ p = mfree(p);
+
+ free(*arg);
+ *arg = p;
+ return 0;
+ }
+
+ char* dirname_malloc(const char *path) {
+ char *d, *dir, *dir2;
+
+ assert(path);
+
+ d = strdup(path);
+ if (!d)
+ return NULL;
+
+ dir = dirname(d);
+ assert(dir);
+
+ if (dir == d)
+ return d;
+
+ dir2 = strdup(dir);
+ free(d);
+
+ return dir2;
+ }
++#endif /* NM_IGNORED */
+
+ bool filename_is_valid(const char *p) {
+ const char *e;
+
+ if (isempty(p))
+ return false;
+
+ if (streq(p, "."))
+ return false;
+
+ if (streq(p, ".."))
+ return false;
+
+ e = strchrnul(p, '/');
+ if (*e != 0)
+ return false;
+
+ if (e - p > FILENAME_MAX)
+ return false;
+
+ return true;
+ }
+
++#if 0 /* NM_IGNORED */
+ bool path_is_safe(const char *p) {
+
+ if (isempty(p))
+ return false;
+
+ if (streq(p, "..") || startswith(p, "../") || endswith(p, "/..") || strstr(p, "/../"))
+ return false;
+
+ if (strlen(p)+1 > PATH_MAX)
+ return false;
+
+ /* The following two checks are not really dangerous, but hey, they still are confusing */
+ if (streq(p, ".") || startswith(p, "./") || endswith(p, "/.") || strstr(p, "/./"))
+ return false;
+
+ if (strstr(p, "//"))
+ return false;
+
+ return true;
+ }
+
+ char *file_in_same_dir(const char *path, const char *filename) {
+ char *e, *ret;
+ size_t k;
+
+ assert(path);
+ assert(filename);
+
+ /* This removes the last component of path and appends
+ * filename, unless the latter is absolute anyway or the
+ * former isn't */
+
+ if (path_is_absolute(filename))
+ return strdup(filename);
+
+ e = strrchr(path, '/');
+ if (!e)
+ return strdup(filename);
+
+ k = strlen(filename);
+ ret = new(char, (e + 1 - path) + k + 1);
+ if (!ret)
+ return NULL;
+
+ memcpy(mempcpy(ret, path, e + 1 - path), filename, k + 1);
+ return ret;
+ }
+
+ bool hidden_file_allow_backup(const char *filename) {
+ assert(filename);
+
+ return
+ filename[0] == '.' ||
+ streq(filename, "lost+found") ||
+ streq(filename, "aquota.user") ||
+ streq(filename, "aquota.group") ||
+ endswith(filename, ".rpmnew") ||
+ endswith(filename, ".rpmsave") ||
+ endswith(filename, ".rpmorig") ||
+ endswith(filename, ".dpkg-old") ||
+ endswith(filename, ".dpkg-new") ||
+ endswith(filename, ".dpkg-tmp") ||
+ endswith(filename, ".dpkg-dist") ||
+ endswith(filename, ".dpkg-bak") ||
+ endswith(filename, ".dpkg-backup") ||
+ endswith(filename, ".dpkg-remove") ||
+ endswith(filename, ".swp");
+ }
+
+ bool hidden_file(const char *filename) {
+ assert(filename);
+
+ if (endswith(filename, "~"))
+ return true;
+
+ return hidden_file_allow_backup(filename);
+ }
+
+ bool is_device_path(const char *path) {
+
+ /* Returns true on paths that refer to a device, either in
+ * sysfs or in /dev */
+
+ return
+ path_startswith(path, "/dev/") ||
+ path_startswith(path, "/sys/");
+ }
+#endif /* NM_IGNORED */
* The underlying algorithm used in this implementation is a Heap.
*/
- #include "util.h"
+#include "nm-sd-adapt.h"
+
+ #include "alloc-util.h"
#include "prioq.h"
+ #include "util.h"
struct prioq_item {
void *data;
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <stdint.h>
+#include "nm-sd-adapt.h"
+
#include <errno.h>
- #include <sys/types.h>
- #include <sys/stat.h>
#include <fcntl.h>
- #include <time.h>
+ #include <linux/random.h>
+ #include <stdint.h>
#ifdef HAVE_SYS_AUXV_H
#include <sys/auxv.h>
#endif
- #include <linux/random.h>
+ #include <sys/stat.h>
+ #include <sys/types.h>
+ #include <time.h>
- #include "random-util.h"
- #include "time-util.h"
+ #include "fd-util.h"
+ #include "io-util.h"
+#if 0 /* NM_IGNORED */
#include "missing.h"
+#endif
+ #include "random-util.h"
+ #include "time-util.h"
#include "util.h"
int dev_urandom(void *p, size_t n) {
coding style)
*/
- #include "sparse-endian.h"
-
+#include "nm-sd-adapt.h"
+
#include "siphash24.h"
+ #include "sparse-endian.h"
+ #include "unaligned.h"
#include "util.h"
static inline uint64_t rotate_left(uint64_t x, uint8_t b) {
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <sys/socket.h>
- #include <netinet/in.h>
+#include "nm-sd-adapt.h"
+
#include <netinet/ether.h>
+ #include <netinet/in.h>
+ #include <sys/socket.h>
#include <sys/un.h>
#include <linux/netlink.h>
#include <linux/if_packet.h>
--- /dev/null
+ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+ /***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
++#include "nm-sd-adapt.h"
++
+ #include "string-table.h"
+
+ ssize_t string_table_lookup(const char * const *table, size_t len, const char *key) {
+ size_t i;
+
+ if (!key)
+ return -1;
+
+ for (i = 0; i < len; ++i)
+ if (streq_ptr(table[i], key))
+ return (ssize_t) i;
+
+ return -1;
+ }
--- /dev/null
+
+ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+ #pragma once
+
+ /***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
++#include "nm-sd-adapt.h"
++
+ #include <stddef.h>
+ #include <stdio.h>
+ #include <string.h>
+ #include <sys/types.h>
+
+ #include "macro.h"
+ #include "parse-util.h"
+ #include "string-util.h"
+
+ ssize_t string_table_lookup(const char * const *table, size_t len, const char *key);
+
+ /* For basic lookup tables with strictly enumerated entries */
+ #define _DEFINE_STRING_TABLE_LOOKUP_TO_STRING(name,type,scope) \
+ scope const char *name##_to_string(type i) { \
+ if (i < 0 || i >= (type) ELEMENTSOF(name##_table)) \
+ return NULL; \
+ return name##_table[i]; \
+ }
+
+ #define _DEFINE_STRING_TABLE_LOOKUP_FROM_STRING(name,type,scope) \
+ scope type name##_from_string(const char *s) { \
+ return (type) string_table_lookup(name##_table, ELEMENTSOF(name##_table), s); \
+ }
+
+ #define _DEFINE_STRING_TABLE_LOOKUP(name,type,scope) \
+ _DEFINE_STRING_TABLE_LOOKUP_TO_STRING(name,type,scope) \
+ _DEFINE_STRING_TABLE_LOOKUP_FROM_STRING(name,type,scope) \
+ struct __useless_struct_to_allow_trailing_semicolon__
+
+ #define DEFINE_STRING_TABLE_LOOKUP(name,type) _DEFINE_STRING_TABLE_LOOKUP(name,type,)
+ #define DEFINE_PRIVATE_STRING_TABLE_LOOKUP(name,type) _DEFINE_STRING_TABLE_LOOKUP(name,type,static)
+ #define DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(name,type) _DEFINE_STRING_TABLE_LOOKUP_TO_STRING(name,type,static)
+ #define DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(name,type) _DEFINE_STRING_TABLE_LOOKUP_FROM_STRING(name,type,static)
+
+ /* For string conversions where numbers are also acceptable */
+ #define DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(name,type,max) \
+ int name##_to_string_alloc(type i, char **str) { \
+ char *s; \
+ if (i < 0 || i > max) \
+ return -ERANGE; \
+ if (i < (type) ELEMENTSOF(name##_table)) { \
+ s = strdup(name##_table[i]); \
+ if (!s) \
+ return -ENOMEM; \
+ } else { \
+ if (asprintf(&s, "%i", i) < 0) \
+ return -ENOMEM; \
+ } \
+ *str = s; \
+ return 0; \
+ } \
+ type name##_from_string(const char *s) { \
+ type i; \
+ unsigned u = 0; \
+ if (!s) \
+ return (type) -1; \
+ for (i = 0; i < (type) ELEMENTSOF(name##_table); i++) \
+ if (streq_ptr(name##_table[i], s)) \
+ return i; \
+ if (safe_atou(s, &u) >= 0 && u <= max) \
+ return (type) u; \
+ return (type) -1; \
+ } \
+ struct __useless_struct_to_allow_trailing_semicolon__
--- /dev/null
+ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+ /***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
++#include "nm-sd-adapt.h"
++
+ #include "alloc-util.h"
++#if 0 /* NM_IGNORED */
+ #include "gunicode.h"
++#endif /* NM_IGNORED */
+ #include "string-util.h"
+ #include "utf8.h"
+ #include "util.h"
+
+ int strcmp_ptr(const char *a, const char *b) {
+
+ /* Like strcmp(), but tries to make sense of NULL pointers */
+ if (a && b)
+ return strcmp(a, b);
+
+ if (!a && b)
+ return -1;
+
+ if (a && !b)
+ return 1;
+
+ return 0;
+ }
+
+ char* endswith(const char *s, const char *postfix) {
+ size_t sl, pl;
+
+ assert(s);
+ assert(postfix);
+
+ sl = strlen(s);
+ pl = strlen(postfix);
+
+ if (pl == 0)
+ return (char*) s + sl;
+
+ if (sl < pl)
+ return NULL;
+
+ if (memcmp(s + sl - pl, postfix, pl) != 0)
+ return NULL;
+
+ return (char*) s + sl - pl;
+ }
+
+ char* endswith_no_case(const char *s, const char *postfix) {
+ size_t sl, pl;
+
+ assert(s);
+ assert(postfix);
+
+ sl = strlen(s);
+ pl = strlen(postfix);
+
+ if (pl == 0)
+ return (char*) s + sl;
+
+ if (sl < pl)
+ return NULL;
+
+ if (strcasecmp(s + sl - pl, postfix) != 0)
+ return NULL;
+
+ return (char*) s + sl - pl;
+ }
+
+ char* first_word(const char *s, const char *word) {
+ size_t sl, wl;
+ const char *p;
+
+ assert(s);
+ assert(word);
+
+ /* Checks if the string starts with the specified word, either
+ * followed by NUL or by whitespace. Returns a pointer to the
+ * NUL or the first character after the whitespace. */
+
+ sl = strlen(s);
+ wl = strlen(word);
+
+ if (sl < wl)
+ return NULL;
+
+ if (wl == 0)
+ return (char*) s;
+
+ if (memcmp(s, word, wl) != 0)
+ return NULL;
+
+ p = s + wl;
+ if (*p == 0)
+ return (char*) p;
+
+ if (!strchr(WHITESPACE, *p))
+ return NULL;
+
+ p += strspn(p, WHITESPACE);
+ return (char*) p;
+ }
+
+ static size_t strcspn_escaped(const char *s, const char *reject) {
+ bool escaped = false;
+ int n;
+
+ for (n=0; s[n]; n++) {
+ if (escaped)
+ escaped = false;
+ else if (s[n] == '\\')
+ escaped = true;
+ else if (strchr(reject, s[n]))
+ break;
+ }
+
+ /* if s ends in \, return index of previous char */
+ return n - escaped;
+ }
+
+ /* Split a string into words. */
+ const char* split(const char **state, size_t *l, const char *separator, bool quoted) {
+ const char *current;
+
+ current = *state;
+
+ if (!*current) {
+ assert(**state == '\0');
+ return NULL;
+ }
+
+ current += strspn(current, separator);
+ if (!*current) {
+ *state = current;
+ return NULL;
+ }
+
+ if (quoted && strchr("\'\"", *current)) {
+ char quotechars[2] = {*current, '\0'};
+
+ *l = strcspn_escaped(current + 1, quotechars);
+ if (current[*l + 1] == '\0' || current[*l + 1] != quotechars[0] ||
+ (current[*l + 2] && !strchr(separator, current[*l + 2]))) {
+ /* right quote missing or garbage at the end */
+ *state = current;
+ return NULL;
+ }
+ *state = current++ + *l + 2;
+ } else if (quoted) {
+ *l = strcspn_escaped(current, separator);
+ if (current[*l] && !strchr(separator, current[*l])) {
+ /* unfinished escape */
+ *state = current;
+ return NULL;
+ }
+ *state = current + *l;
+ } else {
+ *l = strcspn(current, separator);
+ *state = current + *l;
+ }
+
+ return current;
+ }
+
+ char *strnappend(const char *s, const char *suffix, size_t b) {
+ size_t a;
+ char *r;
+
+ if (!s && !suffix)
+ return strdup("");
+
+ if (!s)
+ return strndup(suffix, b);
+
+ if (!suffix)
+ return strdup(s);
+
+ assert(s);
+ assert(suffix);
+
+ a = strlen(s);
+ if (b > ((size_t) -1) - a)
+ return NULL;
+
+ r = new(char, a+b+1);
+ if (!r)
+ return NULL;
+
+ memcpy(r, s, a);
+ memcpy(r+a, suffix, b);
+ r[a+b] = 0;
+
+ return r;
+ }
+
+ char *strappend(const char *s, const char *suffix) {
+ return strnappend(s, suffix, suffix ? strlen(suffix) : 0);
+ }
+
+ char *strjoin(const char *x, ...) {
+ va_list ap;
+ size_t l;
+ char *r, *p;
+
+ va_start(ap, x);
+
+ if (x) {
+ l = strlen(x);
+
+ for (;;) {
+ const char *t;
+ size_t n;
+
+ t = va_arg(ap, const char *);
+ if (!t)
+ break;
+
+ n = strlen(t);
+ if (n > ((size_t) -1) - l) {
+ va_end(ap);
+ return NULL;
+ }
+
+ l += n;
+ }
+ } else
+ l = 0;
+
+ va_end(ap);
+
+ r = new(char, l+1);
+ if (!r)
+ return NULL;
+
+ if (x) {
+ p = stpcpy(r, x);
+
+ va_start(ap, x);
+
+ for (;;) {
+ const char *t;
+
+ t = va_arg(ap, const char *);
+ if (!t)
+ break;
+
+ p = stpcpy(p, t);
+ }
+
+ va_end(ap);
+ } else
+ r[0] = 0;
+
+ return r;
+ }
+
+ char *strstrip(char *s) {
+ char *e;
+
+ /* Drops trailing whitespace. Modifies the string in
+ * place. Returns pointer to first non-space character */
+
+ s += strspn(s, WHITESPACE);
+
+ for (e = strchr(s, 0); e > s; e --)
+ if (!strchr(WHITESPACE, e[-1]))
+ break;
+
+ *e = 0;
+
+ return s;
+ }
+
+ char *delete_chars(char *s, const char *bad) {
+ char *f, *t;
+
+ /* Drops all whitespace, regardless where in the string */
+
+ for (f = s, t = s; *f; f++) {
+ if (strchr(bad, *f))
+ continue;
+
+ *(t++) = *f;
+ }
+
+ *t = 0;
+
+ return s;
+ }
+
+ char *truncate_nl(char *s) {
+ assert(s);
+
+ s[strcspn(s, NEWLINE)] = 0;
+ return s;
+ }
+
+ char *ascii_strlower(char *t) {
+ char *p;
+
+ assert(t);
+
+ for (p = t; *p; p++)
+ if (*p >= 'A' && *p <= 'Z')
+ *p = *p - 'A' + 'a';
+
+ return t;
+ }
+
+ bool chars_intersect(const char *a, const char *b) {
+ const char *p;
+
+ /* Returns true if any of the chars in a are in b. */
+ for (p = a; *p; p++)
+ if (strchr(b, *p))
+ return true;
+
+ return false;
+ }
+
+ bool string_has_cc(const char *p, const char *ok) {
+ const char *t;
+
+ assert(p);
+
+ /*
+ * Check if a string contains control characters. If 'ok' is
+ * non-NULL it may be a string containing additional CCs to be
+ * considered OK.
+ */
+
+ for (t = p; *t; t++) {
+ if (ok && strchr(ok, *t))
+ continue;
+
+ if (*t > 0 && *t < ' ')
+ return true;
+
+ if (*t == 127)
+ return true;
+ }
+
+ return false;
+ }
+
++#if 0 /* NM_IGNORED */
+ static char *ascii_ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigned percent) {
+ size_t x;
+ char *r;
+
+ assert(s);
+ assert(percent <= 100);
+ assert(new_length >= 3);
+
+ if (old_length <= 3 || old_length <= new_length)
+ return strndup(s, old_length);
+
+ r = new0(char, new_length+1);
+ if (!r)
+ return NULL;
+
+ x = (new_length * percent) / 100;
+
+ if (x > new_length - 3)
+ x = new_length - 3;
+
+ memcpy(r, s, x);
+ r[x] = '.';
+ r[x+1] = '.';
+ r[x+2] = '.';
+ memcpy(r + x + 3,
+ s + old_length - (new_length - x - 3),
+ new_length - x - 3);
+
+ return r;
+ }
+
+ char *ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigned percent) {
+ size_t x;
+ char *e;
+ const char *i, *j;
+ unsigned k, len, len2;
+
+ assert(s);
+ assert(percent <= 100);
+ assert(new_length >= 3);
+
+ /* if no multibyte characters use ascii_ellipsize_mem for speed */
+ if (ascii_is_valid(s))
+ return ascii_ellipsize_mem(s, old_length, new_length, percent);
+
+ if (old_length <= 3 || old_length <= new_length)
+ return strndup(s, old_length);
+
+ x = (new_length * percent) / 100;
+
+ if (x > new_length - 3)
+ x = new_length - 3;
+
+ k = 0;
+ for (i = s; k < x && i < s + old_length; i = utf8_next_char(i)) {
+ int c;
+
+ c = utf8_encoded_to_unichar(i);
+ if (c < 0)
+ return NULL;
+ k += unichar_iswide(c) ? 2 : 1;
+ }
+
+ if (k > x) /* last character was wide and went over quota */
+ x ++;
+
+ for (j = s + old_length; k < new_length && j > i; ) {
+ int c;
+
+ j = utf8_prev_char(j);
+ c = utf8_encoded_to_unichar(j);
+ if (c < 0)
+ return NULL;
+ k += unichar_iswide(c) ? 2 : 1;
+ }
+ assert(i <= j);
+
+ /* we don't actually need to ellipsize */
+ if (i == j)
+ return memdup(s, old_length + 1);
+
+ /* make space for ellipsis */
+ j = utf8_next_char(j);
+
+ len = i - s;
+ len2 = s + old_length - j;
+ e = new(char, len + 3 + len2 + 1);
+ if (!e)
+ return NULL;
+
+ /*
+ printf("old_length=%zu new_length=%zu x=%zu len=%u len2=%u k=%u\n",
+ old_length, new_length, x, len, len2, k);
+ */
+
+ memcpy(e, s, len);
+ e[len] = 0xe2; /* tri-dot ellipsis: … */
+ e[len + 1] = 0x80;
+ e[len + 2] = 0xa6;
+
+ memcpy(e + len + 3, j, len2 + 1);
+
+ return e;
+ }
+
+ char *ellipsize(const char *s, size_t length, unsigned percent) {
+ return ellipsize_mem(s, strlen(s), length, percent);
+ }
++#endif /* NM_IGNORED */
+
+ bool nulstr_contains(const char*nulstr, const char *needle) {
+ const char *i;
+
+ if (!nulstr)
+ return false;
+
+ NULSTR_FOREACH(i, nulstr)
+ if (streq(i, needle))
+ return true;
+
+ return false;
+ }
+
+ char* strshorten(char *s, size_t l) {
+ assert(s);
+
+ if (l < strlen(s))
+ s[l] = 0;
+
+ return s;
+ }
+
+ char *strreplace(const char *text, const char *old_string, const char *new_string) {
+ const char *f;
+ char *t, *r;
+ size_t l, old_len, new_len;
+
+ assert(text);
+ assert(old_string);
+ assert(new_string);
+
+ old_len = strlen(old_string);
+ new_len = strlen(new_string);
+
+ l = strlen(text);
+ r = new(char, l+1);
+ if (!r)
+ return NULL;
+
+ f = text;
+ t = r;
+ while (*f) {
+ char *a;
+ size_t d, nl;
+
+ if (!startswith(f, old_string)) {
+ *(t++) = *(f++);
+ continue;
+ }
+
+ d = t - r;
+ nl = l - old_len + new_len;
+ a = realloc(r, nl + 1);
+ if (!a)
+ goto oom;
+
+ l = nl;
+ r = a;
+ t = r + d;
+
+ t = stpcpy(t, new_string);
+ f += old_len;
+ }
+
+ *t = 0;
+ return r;
+
+ oom:
+ free(r);
+ return NULL;
+ }
+
+ char *strip_tab_ansi(char **ibuf, size_t *_isz) {
+ const char *i, *begin = NULL;
+ enum {
+ STATE_OTHER,
+ STATE_ESCAPE,
+ STATE_BRACKET
+ } state = STATE_OTHER;
+ char *obuf = NULL;
+ size_t osz = 0, isz;
+ FILE *f;
+
+ assert(ibuf);
+ assert(*ibuf);
+
+ /* Strips ANSI color and replaces TABs by 8 spaces */
+
+ isz = _isz ? *_isz : strlen(*ibuf);
+
+ f = open_memstream(&obuf, &osz);
+ if (!f)
+ return NULL;
+
+ for (i = *ibuf; i < *ibuf + isz + 1; i++) {
+
+ switch (state) {
+
+ case STATE_OTHER:
+ if (i >= *ibuf + isz) /* EOT */
+ break;
+ else if (*i == '\x1B')
+ state = STATE_ESCAPE;
+ else if (*i == '\t')
+ fputs(" ", f);
+ else
+ fputc(*i, f);
+ break;
+
+ case STATE_ESCAPE:
+ if (i >= *ibuf + isz) { /* EOT */
+ fputc('\x1B', f);
+ break;
+ } else if (*i == '[') {
+ state = STATE_BRACKET;
+ begin = i + 1;
+ } else {
+ fputc('\x1B', f);
+ fputc(*i, f);
+ state = STATE_OTHER;
+ }
+
+ break;
+
+ case STATE_BRACKET:
+
+ if (i >= *ibuf + isz || /* EOT */
+ (!(*i >= '0' && *i <= '9') && *i != ';' && *i != 'm')) {
+ fputc('\x1B', f);
+ fputc('[', f);
+ state = STATE_OTHER;
+ i = begin-1;
+ } else if (*i == 'm')
+ state = STATE_OTHER;
+ break;
+ }
+ }
+
+ if (ferror(f)) {
+ fclose(f);
+ free(obuf);
+ return NULL;
+ }
+
+ fclose(f);
+
+ free(*ibuf);
+ *ibuf = obuf;
+
+ if (_isz)
+ *_isz = osz;
+
+ return obuf;
+ }
+
+ char *strextend(char **x, ...) {
+ va_list ap;
+ size_t f, l;
+ char *r, *p;
+
+ assert(x);
+
+ l = f = *x ? strlen(*x) : 0;
+
+ va_start(ap, x);
+ for (;;) {
+ const char *t;
+ size_t n;
+
+ t = va_arg(ap, const char *);
+ if (!t)
+ break;
+
+ n = strlen(t);
+ if (n > ((size_t) -1) - l) {
+ va_end(ap);
+ return NULL;
+ }
+
+ l += n;
+ }
+ va_end(ap);
+
+ r = realloc(*x, l+1);
+ if (!r)
+ return NULL;
+
+ p = r + f;
+
+ va_start(ap, x);
+ for (;;) {
+ const char *t;
+
+ t = va_arg(ap, const char *);
+ if (!t)
+ break;
+
+ p = stpcpy(p, t);
+ }
+ va_end(ap);
+
+ *p = 0;
+ *x = r;
+
+ return r + l;
+ }
+
+ char *strrep(const char *s, unsigned n) {
+ size_t l;
+ char *r, *p;
+ unsigned i;
+
+ assert(s);
+
+ l = strlen(s);
+ p = r = malloc(l * n + 1);
+ if (!r)
+ return NULL;
+
+ for (i = 0; i < n; i++)
+ p = stpcpy(p, s);
+
+ *p = 0;
+ return r;
+ }
+
+ int split_pair(const char *s, const char *sep, char **l, char **r) {
+ char *x, *a, *b;
+
+ assert(s);
+ assert(sep);
+ assert(l);
+ assert(r);
+
+ if (isempty(sep))
+ return -EINVAL;
+
+ x = strstr(s, sep);
+ if (!x)
+ return -EINVAL;
+
+ a = strndup(s, x - s);
+ if (!a)
+ return -ENOMEM;
+
+ b = strdup(x + strlen(sep));
+ if (!b) {
+ free(a);
+ return -ENOMEM;
+ }
+
+ *l = a;
+ *r = b;
+
+ return 0;
+ }
+
+ int free_and_strdup(char **p, const char *s) {
+ char *t;
+
+ assert(p);
+
+ /* Replaces a string pointer with an strdup()ed new string,
+ * possibly freeing the old one. */
+
+ if (streq_ptr(*p, s))
+ return 0;
+
+ if (s) {
+ t = strdup(s);
+ if (!t)
+ return -ENOMEM;
+ } else
+ t = NULL;
+
+ free(*p);
+ *p = t;
+
+ return 1;
+ }
+
+ #pragma GCC push_options
+ #pragma GCC optimize("O0")
+
+ void* memory_erase(void *p, size_t l) {
+ volatile uint8_t* x = (volatile uint8_t*) p;
+
+ /* This basically does what memset() does, but hopefully isn't
+ * optimized away by the compiler. One of those days, when
+ * glibc learns memset_s() we should replace this call by
+ * memset_s(), but until then this has to do. */
+
+ for (; l > 0; l--)
+ *(x++) = 'x';
+
+ return p;
+ }
+
+ #pragma GCC pop_options
+
+ char* string_erase(char *x) {
+
+ if (!x)
+ return NULL;
+
+ /* A delicious drop of snake-oil! To be called on memory where
+ * we stored passphrases or so, after we used them. */
+
+ return memory_erase(x, strlen(x));
+ }
+
+ char *string_free_erase(char *s) {
+ return mfree(string_erase(s));
+ }
+
+ bool string_is_safe(const char *p) {
+ const char *t;
+
+ if (!p)
+ return false;
+
+ for (t = p; *t; t++) {
+ if (*t > 0 && *t < ' ') /* no control characters */
+ return false;
+
+ if (strchr(QUOTES "\\\x7f", *t))
+ return false;
+ }
+
+ return true;
+ }
--- /dev/null
+ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+ #pragma once
+
+ /***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
++#include "nm-sd-adapt.h"
++
+ #include <stdbool.h>
+ #include <string.h>
+
+ #include "macro.h"
+
+ /* What is interpreted as whitespace? */
+ #define WHITESPACE " \t\n\r"
+ #define NEWLINE "\n\r"
+ #define QUOTES "\"\'"
+ #define COMMENTS "#;"
+ #define GLOB_CHARS "*?["
+ #define DIGITS "0123456789"
+ #define LOWERCASE_LETTERS "abcdefghijklmnopqrstuvwxyz"
+ #define UPPERCASE_LETTERS "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ #define LETTERS LOWERCASE_LETTERS UPPERCASE_LETTERS
+ #define ALPHANUMERICAL LETTERS DIGITS
+
+ #define streq(a,b) (strcmp((a),(b)) == 0)
+ #define strneq(a, b, n) (strncmp((a), (b), (n)) == 0)
+ #define strcaseeq(a,b) (strcasecmp((a),(b)) == 0)
+ #define strncaseeq(a, b, n) (strncasecmp((a), (b), (n)) == 0)
+
+ int strcmp_ptr(const char *a, const char *b) _pure_;
+
+ static inline bool streq_ptr(const char *a, const char *b) {
+ return strcmp_ptr(a, b) == 0;
+ }
+
+ static inline const char* strempty(const char *s) {
+ return s ? s : "";
+ }
+
+ static inline const char* strnull(const char *s) {
+ return s ? s : "(null)";
+ }
+
+ static inline const char *strna(const char *s) {
+ return s ? s : "n/a";
+ }
+
+ static inline bool isempty(const char *p) {
+ return !p || !p[0];
+ }
+
+ static inline char *startswith(const char *s, const char *prefix) {
+ size_t l;
+
+ l = strlen(prefix);
+ if (strncmp(s, prefix, l) == 0)
+ return (char*) s + l;
+
+ return NULL;
+ }
+
+ static inline char *startswith_no_case(const char *s, const char *prefix) {
+ size_t l;
+
+ l = strlen(prefix);
+ if (strncasecmp(s, prefix, l) == 0)
+ return (char*) s + l;
+
+ return NULL;
+ }
+
+ char *endswith(const char *s, const char *postfix) _pure_;
+ char *endswith_no_case(const char *s, const char *postfix) _pure_;
+
+ char *first_word(const char *s, const char *word) _pure_;
+
+ const char* split(const char **state, size_t *l, const char *separator, bool quoted);
+
+ #define FOREACH_WORD(word, length, s, state) \
+ _FOREACH_WORD(word, length, s, WHITESPACE, false, state)
+
+ #define FOREACH_WORD_SEPARATOR(word, length, s, separator, state) \
+ _FOREACH_WORD(word, length, s, separator, false, state)
+
+ #define FOREACH_WORD_QUOTED(word, length, s, state) \
+ _FOREACH_WORD(word, length, s, WHITESPACE, true, state)
+
+ #define _FOREACH_WORD(word, length, s, separator, quoted, state) \
+ for ((state) = (s), (word) = split(&(state), &(length), (separator), (quoted)); (word); (word) = split(&(state), &(length), (separator), (quoted)))
+
+ char *strappend(const char *s, const char *suffix);
+ char *strnappend(const char *s, const char *suffix, size_t length);
+
+ char *strjoin(const char *x, ...) _sentinel_;
+
+ #define strjoina(a, ...) \
+ ({ \
+ const char *_appendees_[] = { a, __VA_ARGS__ }; \
+ char *_d_, *_p_; \
+ int _len_ = 0; \
+ unsigned _i_; \
+ for (_i_ = 0; _i_ < ELEMENTSOF(_appendees_) && _appendees_[_i_]; _i_++) \
+ _len_ += strlen(_appendees_[_i_]); \
+ _p_ = _d_ = alloca(_len_ + 1); \
+ for (_i_ = 0; _i_ < ELEMENTSOF(_appendees_) && _appendees_[_i_]; _i_++) \
+ _p_ = stpcpy(_p_, _appendees_[_i_]); \
+ *_p_ = 0; \
+ _d_; \
+ })
+
+ char *strstrip(char *s);
+ char *delete_chars(char *s, const char *bad);
+ char *truncate_nl(char *s);
+
+ char *ascii_strlower(char *path);
+
+ bool chars_intersect(const char *a, const char *b) _pure_;
+
+ static inline bool _pure_ in_charset(const char *s, const char* charset) {
+ assert(s);
+ assert(charset);
+ return s[strspn(s, charset)] == '\0';
+ }
+
+ bool string_has_cc(const char *p, const char *ok) _pure_;
+
+ char *ellipsize_mem(const char *s, size_t old_length_bytes, size_t new_length_columns, unsigned percent);
+ char *ellipsize(const char *s, size_t length, unsigned percent);
+
+ bool nulstr_contains(const char*nulstr, const char *needle);
+
+ char* strshorten(char *s, size_t l);
+
+ char *strreplace(const char *text, const char *old_string, const char *new_string);
+
+ char *strip_tab_ansi(char **p, size_t *l);
+
+ char *strextend(char **x, ...) _sentinel_;
+
+ char *strrep(const char *s, unsigned n);
+
+ int split_pair(const char *s, const char *sep, char **l, char **r);
+
+ int free_and_strdup(char **p, const char *s);
+
+ /* Normal memmem() requires haystack to be nonnull, which is annoying for zero-length buffers */
+ static inline void *memmem_safe(const void *haystack, size_t haystacklen, const void *needle, size_t needlelen) {
+
+ if (needlelen <= 0)
+ return (void*) haystack;
+
+ if (haystacklen < needlelen)
+ return NULL;
+
+ assert(haystack);
+ assert(needle);
+
+ return memmem(haystack, haystacklen, needle, needlelen);
+ }
+
+ void* memory_erase(void *p, size_t l);
+ char *string_erase(char *x);
+
+ char *string_free_erase(char *s);
+ DEFINE_TRIVIAL_CLEANUP_FUNC(char *, string_free_erase);
+ #define _cleanup_string_free_erase_ _cleanup_(string_free_erasep)
+
+ bool string_is_safe(const char *p) _pure_;
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <stdlib.h>
+#include "nm-sd-adapt.h"
+
+ #include <errno.h>
#include <stdarg.h>
+ #include <stdlib.h>
#include <string.h>
- #include <errno.h>
- #include "util.h"
+ #include "alloc-util.h"
+ #include "escape.h"
+ #include "string-util.h"
#include "strv.h"
+ #include "util.h"
char *strv_find(char **l, const char *name) {
char **i;
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "nm-sd-adapt.h"
+
+ #include <fnmatch.h>
#include <stdarg.h>
#include <stdbool.h>
- #include <fnmatch.h>
++#if 0 /* NM_IGNORED */
+ #include "extract-word.h"
++#endif /* NM_IGNORED */
#include "util.h"
char *strv_find(char **l, const char *name) _pure_;
char **strv_split(const char *s, const char *separator);
char **strv_split_newlines(const char *s);
++#if 0 /* NM_IGNORED */
int strv_split_extract(char ***t, const char *s, const char *separators, ExtractFlags flags);
++#endif /* NM_IGNORED */
char *strv_join(char **l, const char *separator);
char *strv_join_quoted(char **l);
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <time.h>
+#include "nm-sd-adapt.h"
+
#include <string.h>
- #include <sys/timex.h>
#include <sys/timerfd.h>
+ #include <sys/timex.h>
- #include "util.h"
- #include "time-util.h"
+ #include "alloc-util.h"
+ #include "fd-util.h"
+ #include "fileio.h"
++#if 0 /* NM_IGNORED */
+ #include "fs-util.h"
+ #include "parse-util.h"
++#endif /* NM_IGNORED */
#include "path-util.h"
+ #include "string-util.h"
#include "strv.h"
+ #include "time-util.h"
+ #include "util.h"
usec_t now(clockid_t clock_id) {
struct timespec ts;
*tz = z;
return 0;
}
+
+ time_t mktime_or_timegm(struct tm *tm, bool utc) {
+ return utc ? timegm(tm) : mktime(tm);
+ }
+
+ struct tm *localtime_or_gmtime_r(const time_t *t, struct tm *tm, bool utc) {
+ return utc ? gmtime_r(t, tm) : localtime_r(t, tm);
+ }
+
+ unsigned long usec_to_jiffies(usec_t u) {
+ static thread_local unsigned long hz = 0;
+ long r;
+
+ if (hz == 0) {
+ r = sysconf(_SC_CLK_TCK);
+
+ assert(r > 0);
+ hz = (unsigned long) r;
+ }
+
+ return DIV_ROUND_UP(u , USEC_PER_SEC / hz);
+ }
+#endif /* NM_IGNORED */
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <stdio.h>
+#include "nm-sd-adapt.h"
+
#include <inttypes.h>
+ #include <stdio.h>
+ #include <time.h>
typedef uint64_t usec_t;
typedef uint64_t nsec_t;
--- /dev/null
+ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+ #pragma once
+
+ /***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
++#include "nm-sd-adapt.h"
++
+ #include <stdbool.h>
+ #include <sys/stat.h>
+ #include <sys/types.h>
+
+ #include "macro.h"
+
+ static inline void umaskp(mode_t *u) {
+ umask(*u);
+ }
+
+ #define _cleanup_umask_ _cleanup_(umaskp)
+
+ struct _umask_struct_ {
+ mode_t mask;
+ bool quit;
+ };
+
+ static inline void _reset_umask_(struct _umask_struct_ *s) {
+ umask(s->mask);
+ };
+
+ #define RUN_WITH_UMASK(mask) \
+ for (_cleanup_(_reset_umask_) struct _umask_struct_ _saved_umask_ = { umask(mask), false }; \
+ !_saved_umask_.quit ; \
+ _saved_umask_.quit = true)
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "nm-sd-adapt.h"
+
+ #include <endian.h>
#include <stdint.h>
+ /* BE */
+
static inline uint16_t unaligned_read_be16(const void *_u) {
const uint8_t *u = _u;
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "nm-sd-adapt.h"
+
#include <errno.h>
- #include <stdlib.h>
#include <inttypes.h>
- #include <string.h>
#include <stdbool.h>
+ #include <stdlib.h>
+ #include <string.h>
+ #include "alloc-util.h"
+ #include "hexdecoct.h"
#include "utf8.h"
#include "util.h"
* otherwise conflicts with sys/mount.h. Yay, Linux is great! */
#include <linux/fs.h>
+#if 0 /* NM_IGNORED */
+ #include "alloc-util.h"
#include "build.h"
#include "def.h"
#include "device-nodes.h"
#include "hostname-util.h"
#include "ioprio.h"
#include "log.h"
+#endif /* NM_IGNORED */
#include "macro.h"
+#if 0 /* NM_IGNORED */
#include "missing.h"
#include "mkdir.h"
+ #include "parse-util.h"
+#endif /* NM_IGNORED */
#include "path-util.h"
+#if 0 /* NM_IGNORED */
#include "process-util.h"
#include "random-util.h"
#include "signal-util.h"
#include "sparse-endian.h"
+ #include "stat-util.h"
+ #include "string-table.h"
+ #include "string-util.h"
#include "strv.h"
#include "terminal-util.h"
+ #include "user-util.h"
+#endif /* NM_IGNORED */
#include "utf8.h"
#include "util.h"
+#if 0 /* NM_IGNORED */
#include "virt.h"
+#endif /* NM_IGNORED */
/* Put this test here for a lack of better place */
assert_cc(EAGAIN == EWOULDBLOCK);
return pgsz;
}
- int strcmp_ptr(const char *a, const char *b) {
-
- /* Like strcmp(), but tries to make sense of NULL pointers */
- if (a && b)
- return strcmp(a, b);
-
- if (!a && b)
- return -1;
-
- if (a && !b)
- return 1;
-
- return 0;
- }
-
- bool streq_ptr(const char *a, const char *b) {
- return strcmp_ptr(a, b) == 0;
- }
-
- char* endswith(const char *s, const char *postfix) {
- size_t sl, pl;
-
- assert(s);
- assert(postfix);
++#if 0 /* NM_IGNORED */
+ static int do_execute(char **directories, usec_t timeout, char *argv[]) {
+ _cleanup_hashmap_free_free_ Hashmap *pids = NULL;
+ _cleanup_set_free_free_ Set *seen = NULL;
+ char **directory;
- sl = strlen(s);
- pl = strlen(postfix);
+ /* We fork this all off from a child process so that we can
+ * somewhat cleanly make use of SIGALRM to set a time limit */
- if (pl == 0)
- return (char*) s + sl;
+ (void) reset_all_signal_handlers();
+ (void) reset_signal_mask();
- if (sl < pl)
- return NULL;
+ assert_se(prctl(PR_SET_PDEATHSIG, SIGTERM) == 0);
- if (memcmp(s + sl - pl, postfix, pl) != 0)
- return NULL;
+ pids = hashmap_new(NULL);
+ if (!pids)
+ return log_oom();
- return (char*) s + sl - pl;
- }
+ seen = set_new(&string_hash_ops);
+ if (!seen)
+ return log_oom();
- char* endswith_no_case(const char *s, const char *postfix) {
- size_t sl, pl;
+ STRV_FOREACH(directory, directories) {
+ _cleanup_closedir_ DIR *d;
+ struct dirent *de;
- assert(s);
- assert(postfix);
+ d = opendir(*directory);
+ if (!d) {
+ if (errno == ENOENT)
+ continue;
- sl = strlen(s);
- pl = strlen(postfix);
+ return log_error_errno(errno, "Failed to open directory %s: %m", *directory);
+ }
- if (pl == 0)
- return (char*) s + sl;
+ FOREACH_DIRENT(de, d, break) {
+ _cleanup_free_ char *path = NULL;
+ pid_t pid;
+ int r;
- if (sl < pl)
- return NULL;
+ if (!dirent_is_file(de))
+ continue;
- if (strcasecmp(s + sl - pl, postfix) != 0)
- return NULL;
+ if (set_contains(seen, de->d_name)) {
+ log_debug("%1$s/%2$s skipped (%2$s was already seen).", *directory, de->d_name);
+ continue;
+ }
- return (char*) s + sl - pl;
- }
+ r = set_put_strdup(seen, de->d_name);
+ if (r < 0)
+ return log_oom();
- char* first_word(const char *s, const char *word) {
- size_t sl, wl;
- const char *p;
+ path = strjoin(*directory, "/", de->d_name, NULL);
+ if (!path)
+ return log_oom();
- assert(s);
- assert(word);
+ if (null_or_empty_path(path)) {
+ log_debug("%s is empty (a mask).", path);
+ continue;
+ }
- /* Checks if the string starts with the specified word, either
- * followed by NUL or by whitespace. Returns a pointer to the
- * NUL or the first character after the whitespace. */
+ pid = fork();
+ if (pid < 0) {
+ log_error_errno(errno, "Failed to fork: %m");
+ continue;
+ } else if (pid == 0) {
+ char *_argv[2];
- sl = strlen(s);
- wl = strlen(word);
+ assert_se(prctl(PR_SET_PDEATHSIG, SIGTERM) == 0);
- if (sl < wl)
- return NULL;
+ if (!argv) {
+ _argv[0] = path;
+ _argv[1] = NULL;
+ argv = _argv;
+ } else
+ argv[0] = path;
- if (wl == 0)
- return (char*) s;
+ execv(path, argv);
+ return log_error_errno(errno, "Failed to execute %s: %m", path);
+ }
- if (memcmp(s, word, wl) != 0)
- return NULL;
+ log_debug("Spawned %s as " PID_FMT ".", path, pid);
- p = s + wl;
- if (*p == 0)
- return (char*) p;
+ r = hashmap_put(pids, PID_TO_PTR(pid), path);
+ if (r < 0)
+ return log_oom();
+ path = NULL;
+ }
+ }
- if (!strchr(WHITESPACE, *p))
- return NULL;
+ /* Abort execution of this process after the timout. We simply
+ * rely on SIGALRM as default action terminating the process,
+ * and turn on alarm(). */
- p += strspn(p, WHITESPACE);
- return (char*) p;
- }
+ if (timeout != USEC_INFINITY)
+ alarm((timeout + USEC_PER_SEC - 1) / USEC_PER_SEC);
- size_t cescape_char(char c, char *buf) {
- char * buf_old = buf;
+ while (!hashmap_isempty(pids)) {
+ _cleanup_free_ char *path = NULL;
+ pid_t pid;
- switch (c) {
+ pid = PTR_TO_PID(hashmap_first_key(pids));
+ assert(pid > 0);
- case '\a':
- *(buf++) = '\\';
- *(buf++) = 'a';
- break;
- case '\b':
- *(buf++) = '\\';
- *(buf++) = 'b';
- break;
- case '\f':
- *(buf++) = '\\';
- *(buf++) = 'f';
- break;
- case '\n':
- *(buf++) = '\\';
- *(buf++) = 'n';
- break;
- case '\r':
- *(buf++) = '\\';
- *(buf++) = 'r';
- break;
- case '\t':
- *(buf++) = '\\';
- *(buf++) = 't';
- break;
- case '\v':
- *(buf++) = '\\';
- *(buf++) = 'v';
- break;
- case '\\':
- *(buf++) = '\\';
- *(buf++) = '\\';
- break;
- case '"':
- *(buf++) = '\\';
- *(buf++) = '"';
- break;
- case '\'':
- *(buf++) = '\\';
- *(buf++) = '\'';
- break;
+ path = hashmap_remove(pids, PID_TO_PTR(pid));
+ assert(path);
- default:
- /* For special chars we prefer octal over
- * hexadecimal encoding, simply because glib's
- * g_strescape() does the same */
- if ((c < ' ') || (c >= 127)) {
- *(buf++) = '\\';
- *(buf++) = octchar((unsigned char) c >> 6);
- *(buf++) = octchar((unsigned char) c >> 3);
- *(buf++) = octchar((unsigned char) c);
- } else
- *(buf++) = c;
- break;
+ wait_for_terminate_and_warn(path, pid, true);
}
- return buf - buf_old;
+ return 0;
}
- int close_nointr(int fd) {
- assert(fd >= 0);
-
- if (close(fd) >= 0)
- return 0;
-
- /*
- * Just ignore EINTR; a retry loop is the wrong thing to do on
- * Linux.
- *
- * http://lkml.indiana.edu/hypermail/linux/kernel/0509.1/0877.html
- * https://bugzilla.gnome.org/show_bug.cgi?id=682819
- * http://utcc.utoronto.ca/~cks/space/blog/unix/CloseEINTR
- * https://sites.google.com/site/michaelsafyan/software-engineering/checkforeintrwheninvokingclosethinkagain
- */
- if (errno == EINTR)
- return 0;
-
- return -errno;
- }
+ void execute_directories(const char* const* directories, usec_t timeout, char *argv[]) {
+ pid_t executor_pid;
+ int r;
+ char *name;
+ char **dirs = (char**) directories;
- int safe_close(int fd) {
+ assert(!strv_isempty(dirs));
- /*
- * Like close_nointr() but cannot fail. Guarantees errno is
- * unchanged. Is a NOP with negative fds passed, and returns
- * -1, so that it can be used in this syntax:
- *
- * fd = safe_close(fd);
- */
+ name = basename(dirs[0]);
+ assert(!isempty(name));
- if (fd >= 0) {
- PROTECT_ERRNO;
+ /* Executes all binaries in the directories in parallel and waits
+ * for them to finish. Optionally a timeout is applied. If a file
+ * with the same name exists in more than one directory, the
+ * earliest one wins. */
- /* The kernel might return pretty much any error code
- * via close(), but the fd will be closed anyway. The
- * only condition we want to check for here is whether
- * the fd was invalid at all... */
+ executor_pid = fork();
+ if (executor_pid < 0) {
+ log_error_errno(errno, "Failed to fork: %m");
+ return;
- assert_se(close_nointr(fd) != -EBADF);
+ } else if (executor_pid == 0) {
+ r = do_execute(dirs, timeout, argv);
+ _exit(r < 0 ? EXIT_FAILURE : EXIT_SUCCESS);
}
- return -1;
+ wait_for_terminate_and_warn(name, executor_pid, true);
}
- #if 0 /* NM_IGNORED */
- void close_many(const int fds[], unsigned n_fd) {
- unsigned i;
-
- assert(fds || n_fd <= 0);
-
- for (i = 0; i < n_fd; i++)
- safe_close(fds[i]);
+ bool plymouth_running(void) {
+ return access("/run/plymouth/pid", F_OK) >= 0;
}
- #endif /* NM_IGNORED */
-
- int fclose_nointr(FILE *f) {
- assert(f);
-
- /* Same as close_nointr(), but for fclose() */
-
- if (fclose(f) == 0)
- return 0;
- if (errno == EINTR)
- return 0;
+ bool display_is_local(const char *display) {
+ assert(display);
- return -errno;
+ return
+ display[0] == ':' &&
+ display[1] >= '0' &&
+ display[1] <= '9';
}
- FILE* safe_fclose(FILE *f) {
-
- /* Same as safe_close(), but for fclose() */
+ int socket_from_display(const char *display, char **path) {
+ size_t k;
+ char *f, *c;
- if (f) {
- PROTECT_ERRNO;
+ assert(display);
+ assert(path);
- assert_se(fclose_nointr(f) != EBADF);
- }
+ if (!display_is_local(display))
+ return -EINVAL;
- return NULL;
- }
+ k = strspn(display+1, "0123456789");
- DIR* safe_closedir(DIR *d) {
+ f = new(char, strlen("/tmp/.X11-unix/X") + k + 1);
+ if (!f)
+ return -ENOMEM;
- if (d) {
- PROTECT_ERRNO;
+ c = stpcpy(f, "/tmp/.X11-unix/X");
+ memcpy(c, display+1, k);
+ c[k] = 0;
- assert_se(closedir(d) >= 0 || errno != EBADF);
- }
+ *path = f;
- return NULL;
+ return 0;
}
- int unlink_noerrno(const char *path) {
- PROTECT_ERRNO;
+ int block_get_whole_disk(dev_t d, dev_t *ret) {
+ char *p, *s;
int r;
+ unsigned n, m;
- r = unlink(path);
- if (r < 0)
- return -errno;
+ assert(ret);
- return 0;
- }
+ /* If it has a queue this is good enough for us */
+ if (asprintf(&p, "/sys/dev/block/%u:%u/queue", major(d), minor(d)) < 0)
+ return -ENOMEM;
- #if 0 /* NM_IGNORED */
- int parse_boolean(const char *v) {
- assert(v);
+ r = access(p, F_OK);
+ free(p);
- if (streq(v, "1") || strcaseeq(v, "yes") || strcaseeq(v, "y") || strcaseeq(v, "true") || strcaseeq(v, "t") || strcaseeq(v, "on"))
- return 1;
- else if (streq(v, "0") || strcaseeq(v, "no") || strcaseeq(v, "n") || strcaseeq(v, "false") || strcaseeq(v, "f") || strcaseeq(v, "off"))
+ if (r >= 0) {
+ *ret = d;
return 0;
+ }
- return -EINVAL;
- }
-
- int parse_pid(const char *s, pid_t* ret_pid) {
- unsigned long ul = 0;
- pid_t pid;
- int r;
+ /* If it is a partition find the originating device */
+ if (asprintf(&p, "/sys/dev/block/%u:%u/partition", major(d), minor(d)) < 0)
+ return -ENOMEM;
- assert(s);
- assert(ret_pid);
+ r = access(p, F_OK);
+ free(p);
- r = safe_atolu(s, &ul);
if (r < 0)
- return r;
+ return -ENOENT;
- pid = (pid_t) ul;
+ /* Get parent dev_t */
+ if (asprintf(&p, "/sys/dev/block/%u:%u/../dev", major(d), minor(d)) < 0)
+ return -ENOMEM;
- if ((unsigned long) pid != ul)
- return -ERANGE;
+ r = read_one_line_file(p, &s);
+ free(p);
- if (pid <= 0)
- return -ERANGE;
+ if (r < 0)
+ return r;
- *ret_pid = pid;
- return 0;
- }
+ r = sscanf(s, "%u:%u", &m, &n);
+ free(s);
- bool uid_is_valid(uid_t uid) {
+ if (r != 2)
+ return -EINVAL;
- /* Some libc APIs use UID_INVALID as special placeholder */
- if (uid == (uid_t) 0xFFFFFFFF)
- return false;
+ /* Only return this if it is really good enough for us. */
+ if (asprintf(&p, "/sys/dev/block/%u:%u/queue", m, n) < 0)
+ return -ENOMEM;
- /* A long time ago UIDs where 16bit, hence explicitly avoid the 16bit -1 too */
- if (uid == (uid_t) 0xFFFF)
- return false;
+ r = access(p, F_OK);
+ free(p);
- return true;
+ if (r >= 0) {
+ *ret = makedev(m, n);
+ return 0;
+ }
+
+ return -ENOENT;
}
- int parse_uid(const char *s, uid_t* ret_uid) {
- unsigned long ul = 0;
- uid_t uid;
- int r;
+ bool kexec_loaded(void) {
+ bool loaded = false;
+ char *s;
- assert(s);
+ if (read_one_line_file("/sys/kernel/kexec_loaded", &s) >= 0) {
+ if (s[0] == '1')
+ loaded = true;
+ free(s);
+ }
+ return loaded;
+ }
- r = safe_atolu(s, &ul);
- if (r < 0)
- return r;
+ int prot_from_flags(int flags) {
- uid = (uid_t) ul;
+ switch (flags & O_ACCMODE) {
- if ((unsigned long) uid != ul)
- return -ERANGE;
+ case O_RDONLY:
+ return PROT_READ;
- if (!uid_is_valid(uid))
- return -ENXIO; /* we return ENXIO instead of EINVAL
- * here, to make it easy to distuingish
- * invalid numeric uids invalid
- * strings. */
+ case O_WRONLY:
+ return PROT_WRITE;
- if (ret_uid)
- *ret_uid = uid;
+ case O_RDWR:
+ return PROT_READ|PROT_WRITE;
- return 0;
+ default:
+ return -EINVAL;
+ }
}
- #endif /* NM_IGNORED */
-
- int safe_atou(const char *s, unsigned *ret_u) {
- char *x = NULL;
- unsigned long l;
-
- assert(s);
- assert(ret_u);
-
- errno = 0;
- l = strtoul(s, &x, 0);
- if (!x || x == s || *x || errno)
- return errno > 0 ? -errno : -EINVAL;
-
- if ((unsigned long) (unsigned) l != l)
- return -ERANGE;
-
- *ret_u = (unsigned) l;
- return 0;
- }
-
- #if 0 /* NM_IGNORED */
- int safe_atoi(const char *s, int *ret_i) {
- char *x = NULL;
- long l;
-
- assert(s);
- assert(ret_i);
-
- errno = 0;
- l = strtol(s, &x, 0);
-
- if (!x || x == s || *x || errno)
- return errno > 0 ? -errno : -EINVAL;
-
- if ((long) (int) l != l)
- return -ERANGE;
-
- *ret_i = (int) l;
- return 0;
- }
-
- int safe_atou8(const char *s, uint8_t *ret) {
- char *x = NULL;
- unsigned long l;
-
- assert(s);
- assert(ret);
-
- errno = 0;
- l = strtoul(s, &x, 0);
-
- if (!x || x == s || *x || errno)
- return errno > 0 ? -errno : -EINVAL;
-
- if ((unsigned long) (uint8_t) l != l)
- return -ERANGE;
-
- *ret = (uint8_t) l;
- return 0;
- }
- #endif /* NM_IGNORED */
-
- int safe_atou16(const char *s, uint16_t *ret) {
- char *x = NULL;
- unsigned long l;
-
- assert(s);
- assert(ret);
-
- errno = 0;
- l = strtoul(s, &x, 0);
-
- if (!x || x == s || *x || errno)
- return errno > 0 ? -errno : -EINVAL;
-
- if ((unsigned long) (uint16_t) l != l)
- return -ERANGE;
-
- *ret = (uint16_t) l;
- return 0;
- }
-
- #if 0 /* NM_IGNORED */
- int safe_atoi16(const char *s, int16_t *ret) {
- char *x = NULL;
- long l;
-
- assert(s);
- assert(ret);
-
- errno = 0;
- l = strtol(s, &x, 0);
-
- if (!x || x == s || *x || errno)
- return errno > 0 ? -errno : -EINVAL;
-
- if ((long) (int16_t) l != l)
- return -ERANGE;
-
- *ret = (int16_t) l;
- return 0;
- }
-
- int safe_atollu(const char *s, long long unsigned *ret_llu) {
- char *x = NULL;
- unsigned long long l;
-
- assert(s);
- assert(ret_llu);
-
- errno = 0;
- l = strtoull(s, &x, 0);
-
- if (!x || x == s || *x || errno)
- return errno ? -errno : -EINVAL;
-
- *ret_llu = l;
- return 0;
- }
-
- int safe_atolli(const char *s, long long int *ret_lli) {
- char *x = NULL;
- long long l;
-
- assert(s);
- assert(ret_lli);
-
- errno = 0;
- l = strtoll(s, &x, 0);
-
- if (!x || x == s || *x || errno)
- return errno ? -errno : -EINVAL;
-
- *ret_lli = l;
- return 0;
- }
-
- int safe_atod(const char *s, double *ret_d) {
- char *x = NULL;
- double d = 0;
- locale_t loc;
-
- assert(s);
- assert(ret_d);
-
- loc = newlocale(LC_NUMERIC_MASK, "C", (locale_t) 0);
- if (loc == (locale_t) 0)
- return -errno;
-
- errno = 0;
- d = strtod_l(s, &x, loc);
-
- if (!x || x == s || *x || errno) {
- freelocale(loc);
- return errno ? -errno : -EINVAL;
- }
-
- freelocale(loc);
- *ret_d = (double) d;
- return 0;
- }
- #endif /* NM_IGNORED */
-
- static size_t strcspn_escaped(const char *s, const char *reject) {
- bool escaped = false;
- int n;
-
- for (n=0; s[n]; n++) {
- if (escaped)
- escaped = false;
- else if (s[n] == '\\')
- escaped = true;
- else if (strchr(reject, s[n]))
- break;
- }
-
- /* if s ends in \, return index of previous char */
- return n - escaped;
- }
-
- /* Split a string into words. */
- const char* split(const char **state, size_t *l, const char *separator, bool quoted) {
- const char *current;
-
- current = *state;
-
- if (!*current) {
- assert(**state == '\0');
- return NULL;
- }
-
- current += strspn(current, separator);
- if (!*current) {
- *state = current;
- return NULL;
- }
-
- if (quoted && strchr("\'\"", *current)) {
- char quotechars[2] = {*current, '\0'};
-
- *l = strcspn_escaped(current + 1, quotechars);
- if (current[*l + 1] == '\0' || current[*l + 1] != quotechars[0] ||
- (current[*l + 2] && !strchr(separator, current[*l + 2]))) {
- /* right quote missing or garbage at the end */
- *state = current;
- return NULL;
- }
- *state = current++ + *l + 2;
- } else if (quoted) {
- *l = strcspn_escaped(current, separator);
- if (current[*l] && !strchr(separator, current[*l])) {
- /* unfinished escape */
- *state = current;
- return NULL;
- }
- *state = current + *l;
- } else {
- *l = strcspn(current, separator);
- *state = current + *l;
- }
-
- return current;
- }
-
- int fchmod_umask(int fd, mode_t m) {
- mode_t u;
- int r;
-
- u = umask(0777);
- r = fchmod(fd, m & (~u)) < 0 ? -errno : 0;
- umask(u);
-
- return r;
- }
-
- char *truncate_nl(char *s) {
- assert(s);
-
- s[strcspn(s, NEWLINE)] = 0;
- return s;
- }
-
- char *strnappend(const char *s, const char *suffix, size_t b) {
- size_t a;
- char *r;
-
- if (!s && !suffix)
- return strdup("");
-
- if (!s)
- return strndup(suffix, b);
-
- if (!suffix)
- return strdup(s);
-
- assert(s);
- assert(suffix);
-
- a = strlen(s);
- if (b > ((size_t) -1) - a)
- return NULL;
-
- r = new(char, a+b+1);
- if (!r)
- return NULL;
-
- memcpy(r, s, a);
- memcpy(r+a, suffix, b);
- r[a+b] = 0;
-
- return r;
- }
-
- char *strappend(const char *s, const char *suffix) {
- return strnappend(s, suffix, suffix ? strlen(suffix) : 0);
- }
-
- #if 0 /* NM_IGNORED */
- int readlinkat_malloc(int fd, const char *p, char **ret) {
- size_t l = 100;
- int r;
-
- assert(p);
- assert(ret);
-
- for (;;) {
- char *c;
- ssize_t n;
-
- c = new(char, l);
- if (!c)
- return -ENOMEM;
-
- n = readlinkat(fd, p, c, l-1);
- if (n < 0) {
- r = -errno;
- free(c);
- return r;
- }
-
- if ((size_t) n < l-1) {
- c[n] = 0;
- *ret = c;
- return 0;
- }
-
- free(c);
- l *= 2;
- }
- }
-
- int readlink_malloc(const char *p, char **ret) {
- return readlinkat_malloc(AT_FDCWD, p, ret);
- }
-
- int readlink_value(const char *p, char **ret) {
- _cleanup_free_ char *link = NULL;
- char *value;
- int r;
-
- r = readlink_malloc(p, &link);
- if (r < 0)
- return r;
-
- value = basename(link);
- if (!value)
- return -ENOENT;
-
- value = strdup(value);
- if (!value)
- return -ENOMEM;
-
- *ret = value;
-
- return 0;
- }
-
- int readlink_and_make_absolute(const char *p, char **r) {
- _cleanup_free_ char *target = NULL;
- char *k;
- int j;
-
- assert(p);
- assert(r);
-
- j = readlink_malloc(p, &target);
- if (j < 0)
- return j;
-
- k = file_in_same_dir(p, target);
- if (!k)
- return -ENOMEM;
-
- *r = k;
- return 0;
- }
-
- int readlink_and_canonicalize(const char *p, char **r) {
- char *t, *s;
- int j;
-
- assert(p);
- assert(r);
-
- j = readlink_and_make_absolute(p, &t);
- if (j < 0)
- return j;
-
- s = canonicalize_file_name(t);
- if (s) {
- free(t);
- *r = s;
- } else
- *r = t;
-
- path_kill_slashes(*r);
-
- return 0;
- }
- #endif /* NM_IGNORED */
-
- char *strstrip(char *s) {
- char *e;
-
- /* Drops trailing whitespace. Modifies the string in
- * place. Returns pointer to first non-space character */
-
- s += strspn(s, WHITESPACE);
-
- for (e = strchr(s, 0); e > s; e --)
- if (!strchr(WHITESPACE, e[-1]))
- break;
-
- *e = 0;
-
- return s;
- }
-
- #if 0 /* NM_IGNORED */
- char *delete_chars(char *s, const char *bad) {
- char *f, *t;
-
- /* Drops all whitespace, regardless where in the string */
-
- for (f = s, t = s; *f; f++) {
- if (strchr(bad, *f))
- continue;
-
- *(t++) = *f;
- }
-
- *t = 0;
-
- return s;
- }
-
- char *file_in_same_dir(const char *path, const char *filename) {
- char *e, *ret;
- size_t k;
-
- assert(path);
- assert(filename);
-
- /* This removes the last component of path and appends
- * filename, unless the latter is absolute anyway or the
- * former isn't */
-
- if (path_is_absolute(filename))
- return strdup(filename);
-
- e = strrchr(path, '/');
- if (!e)
- return strdup(filename);
-
- k = strlen(filename);
- ret = new(char, (e + 1 - path) + k + 1);
- if (!ret)
- return NULL;
-
- memcpy(mempcpy(ret, path, e + 1 - path), filename, k + 1);
- return ret;
- }
-
- int rmdir_parents(const char *path, const char *stop) {
- size_t l;
- int r = 0;
-
- assert(path);
- assert(stop);
-
- l = strlen(path);
-
- /* Skip trailing slashes */
- while (l > 0 && path[l-1] == '/')
- l--;
-
- while (l > 0) {
- char *t;
-
- /* Skip last component */
- while (l > 0 && path[l-1] != '/')
- l--;
-
- /* Skip trailing slashes */
- while (l > 0 && path[l-1] == '/')
- l--;
-
- if (l <= 0)
- break;
-
- if (!(t = strndup(path, l)))
- return -ENOMEM;
-
- if (path_startswith(stop, t)) {
- free(t);
- return 0;
- }
-
- r = rmdir(t);
- free(t);
-
- if (r < 0)
- if (errno != ENOENT)
- return -errno;
- }
-
- return 0;
- }
- #endif /* NM_IGNORED */
-
- char hexchar(int x) {
- static const char table[16] = "0123456789abcdef";
-
- return table[x & 15];
- }
-
- int unhexchar(char c) {
-
- if (c >= '0' && c <= '9')
- return c - '0';
-
- if (c >= 'a' && c <= 'f')
- return c - 'a' + 10;
-
- if (c >= 'A' && c <= 'F')
- return c - 'A' + 10;
-
- return -EINVAL;
- }
-
- char *hexmem(const void *p, size_t l) {
- char *r, *z;
- const uint8_t *x;
-
- z = r = malloc(l * 2 + 1);
- if (!r)
- return NULL;
-
- for (x = p; x < (const uint8_t*) p + l; x++) {
- *(z++) = hexchar(*x >> 4);
- *(z++) = hexchar(*x & 15);
- }
-
- *z = 0;
- return r;
- }
-
- int unhexmem(const char *p, size_t l, void **mem, size_t *len) {
- _cleanup_free_ uint8_t *r = NULL;
- uint8_t *z;
- const char *x;
-
- assert(mem);
- assert(len);
- assert(p);
-
- z = r = malloc((l + 1) / 2 + 1);
- if (!r)
- return -ENOMEM;
-
- for (x = p; x < p + l; x += 2) {
- int a, b;
-
- a = unhexchar(x[0]);
- if (a < 0)
- return a;
- else if (x+1 < p + l) {
- b = unhexchar(x[1]);
- if (b < 0)
- return b;
- } else
- b = 0;
-
- *(z++) = (uint8_t) a << 4 | (uint8_t) b;
- }
-
- *z = 0;
-
- *mem = r;
- r = NULL;
- *len = (l + 1) / 2;
-
- return 0;
- }
-
- /* https://tools.ietf.org/html/rfc4648#section-6
- * Notice that base32hex differs from base32 in the alphabet it uses.
- * The distinction is that the base32hex representation preserves the
- * order of the underlying data when compared as bytestrings, this is
- * useful when representing NSEC3 hashes, as one can then verify the
- * order of hashes directly from their representation. */
- char base32hexchar(int x) {
- static const char table[32] = "0123456789"
- "ABCDEFGHIJKLMNOPQRSTUV";
-
- return table[x & 31];
- }
-
- int unbase32hexchar(char c) {
- unsigned offset;
-
- if (c >= '0' && c <= '9')
- return c - '0';
-
- offset = '9' - '0' + 1;
-
- if (c >= 'A' && c <= 'V')
- return c - 'A' + offset;
-
- return -EINVAL;
- }
-
- char *base32hexmem(const void *p, size_t l, bool padding) {
- char *r, *z;
- const uint8_t *x;
- size_t len;
-
- if (padding)
- /* five input bytes makes eight output bytes, padding is added so we must round up */
- len = 8 * (l + 4) / 5;
- else {
- /* same, but round down as there is no padding */
- len = 8 * l / 5;
-
- switch (l % 5) {
- case 4:
- len += 7;
- break;
- case 3:
- len += 5;
- break;
- case 2:
- len += 4;
- break;
- case 1:
- len += 2;
- break;
- }
- }
-
- z = r = malloc(len + 1);
- if (!r)
- return NULL;
-
- for (x = p; x < (const uint8_t*) p + (l / 5) * 5; x += 5) {
- /* x[0] == XXXXXXXX; x[1] == YYYYYYYY; x[2] == ZZZZZZZZ
- x[3] == QQQQQQQQ; x[4] == WWWWWWWW */
- *(z++) = base32hexchar(x[0] >> 3); /* 000XXXXX */
- *(z++) = base32hexchar((x[0] & 7) << 2 | x[1] >> 6); /* 000XXXYY */
- *(z++) = base32hexchar((x[1] & 63) >> 1); /* 000YYYYY */
- *(z++) = base32hexchar((x[1] & 1) << 4 | x[2] >> 4); /* 000YZZZZ */
- *(z++) = base32hexchar((x[2] & 15) << 1 | x[3] >> 7); /* 000ZZZZQ */
- *(z++) = base32hexchar((x[3] & 127) >> 2); /* 000QQQQQ */
- *(z++) = base32hexchar((x[3] & 3) << 3 | x[4] >> 5); /* 000QQWWW */
- *(z++) = base32hexchar((x[4] & 31)); /* 000WWWWW */
- }
-
- switch (l % 5) {
- case 4:
- *(z++) = base32hexchar(x[0] >> 3); /* 000XXXXX */
- *(z++) = base32hexchar((x[0] & 7) << 2 | x[1] >> 6); /* 000XXXYY */
- *(z++) = base32hexchar((x[1] & 63) >> 1); /* 000YYYYY */
- *(z++) = base32hexchar((x[1] & 1) << 4 | x[2] >> 4); /* 000YZZZZ */
- *(z++) = base32hexchar((x[2] & 15) << 1 | x[3] >> 7); /* 000ZZZZQ */
- *(z++) = base32hexchar((x[3] & 127) >> 2); /* 000QQQQQ */
- *(z++) = base32hexchar((x[3] & 3) << 3); /* 000QQ000 */
- if (padding)
- *(z++) = '=';
-
- break;
-
- case 3:
- *(z++) = base32hexchar(x[0] >> 3); /* 000XXXXX */
- *(z++) = base32hexchar((x[0] & 7) << 2 | x[1] >> 6); /* 000XXXYY */
- *(z++) = base32hexchar((x[1] & 63) >> 1); /* 000YYYYY */
- *(z++) = base32hexchar((x[1] & 1) << 4 | x[2] >> 4); /* 000YZZZZ */
- *(z++) = base32hexchar((x[2] & 15) << 1); /* 000ZZZZ0 */
- if (padding) {
- *(z++) = '=';
- *(z++) = '=';
- *(z++) = '=';
- }
-
- break;
-
- case 2:
- *(z++) = base32hexchar(x[0] >> 3); /* 000XXXXX */
- *(z++) = base32hexchar((x[0] & 7) << 2 | x[1] >> 6); /* 000XXXYY */
- *(z++) = base32hexchar((x[1] & 63) >> 1); /* 000YYYYY */
- *(z++) = base32hexchar((x[1] & 1) << 4); /* 000Y0000 */
- if (padding) {
- *(z++) = '=';
- *(z++) = '=';
- *(z++) = '=';
- *(z++) = '=';
- }
-
- break;
-
- case 1:
- *(z++) = base32hexchar(x[0] >> 3); /* 000XXXXX */
- *(z++) = base32hexchar((x[0] & 7) << 2); /* 000XXX00 */
- if (padding) {
- *(z++) = '=';
- *(z++) = '=';
- *(z++) = '=';
- *(z++) = '=';
- *(z++) = '=';
- *(z++) = '=';
- }
-
- break;
- }
-
- *z = 0;
- return r;
- }
-
- int unbase32hexmem(const char *p, size_t l, bool padding, void **mem, size_t *_len) {
- _cleanup_free_ uint8_t *r = NULL;
- int a, b, c, d, e, f, g, h;
- uint8_t *z;
- const char *x;
- size_t len;
- unsigned pad = 0;
-
- assert(p);
-
- /* padding ensures any base32hex input has input divisible by 8 */
- if (padding && l % 8 != 0)
- return -EINVAL;
-
- if (padding) {
- /* strip the padding */
- while (l > 0 && p[l - 1] == '=' && pad < 7) {
- pad ++;
- l --;
- }
- }
-
- /* a group of eight input bytes needs five output bytes, in case of
- padding we need to add some extra bytes */
- len = (l / 8) * 5;
-
- switch (l % 8) {
- case 7:
- len += 4;
- break;
- case 5:
- len += 3;
- break;
- case 4:
- len += 2;
- break;
- case 2:
- len += 1;
- break;
- case 0:
- break;
- default:
- return -EINVAL;
- }
-
- z = r = malloc(len + 1);
- if (!r)
- return -ENOMEM;
-
- for (x = p; x < p + (l / 8) * 8; x += 8) {
- /* a == 000XXXXX; b == 000YYYYY; c == 000ZZZZZ; d == 000WWWWW
- e == 000SSSSS; f == 000QQQQQ; g == 000VVVVV; h == 000RRRRR */
- a = unbase32hexchar(x[0]);
- if (a < 0)
- return -EINVAL;
-
- b = unbase32hexchar(x[1]);
- if (b < 0)
- return -EINVAL;
-
- c = unbase32hexchar(x[2]);
- if (c < 0)
- return -EINVAL;
-
- d = unbase32hexchar(x[3]);
- if (d < 0)
- return -EINVAL;
-
- e = unbase32hexchar(x[4]);
- if (e < 0)
- return -EINVAL;
-
- f = unbase32hexchar(x[5]);
- if (f < 0)
- return -EINVAL;
-
- g = unbase32hexchar(x[6]);
- if (g < 0)
- return -EINVAL;
-
- h = unbase32hexchar(x[7]);
- if (h < 0)
- return -EINVAL;
-
- *(z++) = (uint8_t) a << 3 | (uint8_t) b >> 2; /* XXXXXYYY */
- *(z++) = (uint8_t) b << 6 | (uint8_t) c << 1 | (uint8_t) d >> 4; /* YYZZZZZW */
- *(z++) = (uint8_t) d << 4 | (uint8_t) e >> 1; /* WWWWSSSS */
- *(z++) = (uint8_t) e << 7 | (uint8_t) f << 2 | (uint8_t) g >> 3; /* SQQQQQVV */
- *(z++) = (uint8_t) g << 5 | (uint8_t) h; /* VVVRRRRR */
- }
-
- switch (l % 8) {
- case 7:
- a = unbase32hexchar(x[0]);
- if (a < 0)
- return -EINVAL;
-
- b = unbase32hexchar(x[1]);
- if (b < 0)
- return -EINVAL;
-
- c = unbase32hexchar(x[2]);
- if (c < 0)
- return -EINVAL;
-
- d = unbase32hexchar(x[3]);
- if (d < 0)
- return -EINVAL;
-
- e = unbase32hexchar(x[4]);
- if (e < 0)
- return -EINVAL;
-
- f = unbase32hexchar(x[5]);
- if (f < 0)
- return -EINVAL;
-
- g = unbase32hexchar(x[6]);
- if (g < 0)
- return -EINVAL;
-
- /* g == 000VV000 */
- if (g & 7)
- return -EINVAL;
-
- *(z++) = (uint8_t) a << 3 | (uint8_t) b >> 2; /* XXXXXYYY */
- *(z++) = (uint8_t) b << 6 | (uint8_t) c << 1 | (uint8_t) d >> 4; /* YYZZZZZW */
- *(z++) = (uint8_t) d << 4 | (uint8_t) e >> 1; /* WWWWSSSS */
- *(z++) = (uint8_t) e << 7 | (uint8_t) f << 2 | (uint8_t) g >> 3; /* SQQQQQVV */
-
- break;
- case 5:
- a = unbase32hexchar(x[0]);
- if (a < 0)
- return -EINVAL;
-
- b = unbase32hexchar(x[1]);
- if (b < 0)
- return -EINVAL;
-
- c = unbase32hexchar(x[2]);
- if (c < 0)
- return -EINVAL;
-
- d = unbase32hexchar(x[3]);
- if (d < 0)
- return -EINVAL;
-
- e = unbase32hexchar(x[4]);
- if (e < 0)
- return -EINVAL;
-
- /* e == 000SSSS0 */
- if (e & 1)
- return -EINVAL;
-
- *(z++) = (uint8_t) a << 3 | (uint8_t) b >> 2; /* XXXXXYYY */
- *(z++) = (uint8_t) b << 6 | (uint8_t) c << 1 | (uint8_t) d >> 4; /* YYZZZZZW */
- *(z++) = (uint8_t) d << 4 | (uint8_t) e >> 1; /* WWWWSSSS */
-
- break;
- case 4:
- a = unbase32hexchar(x[0]);
- if (a < 0)
- return -EINVAL;
-
- b = unbase32hexchar(x[1]);
- if (b < 0)
- return -EINVAL;
-
- c = unbase32hexchar(x[2]);
- if (c < 0)
- return -EINVAL;
-
- d = unbase32hexchar(x[3]);
- if (d < 0)
- return -EINVAL;
-
- /* d == 000W0000 */
- if (d & 15)
- return -EINVAL;
-
- *(z++) = (uint8_t) a << 3 | (uint8_t) b >> 2; /* XXXXXYYY */
- *(z++) = (uint8_t) b << 6 | (uint8_t) c << 1 | (uint8_t) d >> 4; /* YYZZZZZW */
-
- break;
- case 2:
- a = unbase32hexchar(x[0]);
- if (a < 0)
- return -EINVAL;
-
- b = unbase32hexchar(x[1]);
- if (b < 0)
- return -EINVAL;
-
- /* b == 000YYY00 */
- if (b & 3)
- return -EINVAL;
-
- *(z++) = (uint8_t) a << 3 | (uint8_t) b >> 2; /* XXXXXYYY */
-
- break;
- case 0:
- break;
- default:
- return -EINVAL;
- }
-
- *z = 0;
-
- *mem = r;
- r = NULL;
- *_len = len;
-
- return 0;
- }
-
- /* https://tools.ietf.org/html/rfc4648#section-4 */
- char base64char(int x) {
- static const char table[64] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
- "abcdefghijklmnopqrstuvwxyz"
- "0123456789+/";
- return table[x & 63];
- }
-
- int unbase64char(char c) {
- unsigned offset;
-
- if (c >= 'A' && c <= 'Z')
- return c - 'A';
-
- offset = 'Z' - 'A' + 1;
-
- if (c >= 'a' && c <= 'z')
- return c - 'a' + offset;
-
- offset += 'z' - 'a' + 1;
-
- if (c >= '0' && c <= '9')
- return c - '0' + offset;
-
- offset += '9' - '0' + 1;
-
- if (c == '+')
- return offset;
-
- offset ++;
-
- if (c == '/')
- return offset;
-
- return -EINVAL;
- }
-
- char *base64mem(const void *p, size_t l) {
- char *r, *z;
- const uint8_t *x;
-
- /* three input bytes makes four output bytes, padding is added so we must round up */
- z = r = malloc(4 * (l + 2) / 3 + 1);
- if (!r)
- return NULL;
-
- for (x = p; x < (const uint8_t*) p + (l / 3) * 3; x += 3) {
- /* x[0] == XXXXXXXX; x[1] == YYYYYYYY; x[2] == ZZZZZZZZ */
- *(z++) = base64char(x[0] >> 2); /* 00XXXXXX */
- *(z++) = base64char((x[0] & 3) << 4 | x[1] >> 4); /* 00XXYYYY */
- *(z++) = base64char((x[1] & 15) << 2 | x[2] >> 6); /* 00YYYYZZ */
- *(z++) = base64char(x[2] & 63); /* 00ZZZZZZ */
- }
-
- switch (l % 3) {
- case 2:
- *(z++) = base64char(x[0] >> 2); /* 00XXXXXX */
- *(z++) = base64char((x[0] & 3) << 4 | x[1] >> 4); /* 00XXYYYY */
- *(z++) = base64char((x[1] & 15) << 2); /* 00YYYY00 */
- *(z++) = '=';
-
- break;
- case 1:
- *(z++) = base64char(x[0] >> 2); /* 00XXXXXX */
- *(z++) = base64char((x[0] & 3) << 4); /* 00XX0000 */
- *(z++) = '=';
- *(z++) = '=';
-
- break;
- }
-
- *z = 0;
- return r;
- }
-
- int unbase64mem(const char *p, size_t l, void **mem, size_t *_len) {
- _cleanup_free_ uint8_t *r = NULL;
- int a, b, c, d;
- uint8_t *z;
- const char *x;
- size_t len;
-
- assert(p);
-
- /* padding ensures any base63 input has input divisible by 4 */
- if (l % 4 != 0)
- return -EINVAL;
-
- /* strip the padding */
- if (l > 0 && p[l - 1] == '=')
- l --;
- if (l > 0 && p[l - 1] == '=')
- l --;
-
- /* a group of four input bytes needs three output bytes, in case of
- padding we need to add two or three extra bytes */
- len = (l / 4) * 3 + (l % 4 ? (l % 4) - 1 : 0);
-
- z = r = malloc(len + 1);
- if (!r)
- return -ENOMEM;
-
- for (x = p; x < p + (l / 4) * 4; x += 4) {
- /* a == 00XXXXXX; b == 00YYYYYY; c == 00ZZZZZZ; d == 00WWWWWW */
- a = unbase64char(x[0]);
- if (a < 0)
- return -EINVAL;
-
- b = unbase64char(x[1]);
- if (b < 0)
- return -EINVAL;
-
- c = unbase64char(x[2]);
- if (c < 0)
- return -EINVAL;
-
- d = unbase64char(x[3]);
- if (d < 0)
- return -EINVAL;
-
- *(z++) = (uint8_t) a << 2 | (uint8_t) b >> 4; /* XXXXXXYY */
- *(z++) = (uint8_t) b << 4 | (uint8_t) c >> 2; /* YYYYZZZZ */
- *(z++) = (uint8_t) c << 6 | (uint8_t) d; /* ZZWWWWWW */
- }
-
- switch (l % 4) {
- case 3:
- a = unbase64char(x[0]);
- if (a < 0)
- return -EINVAL;
-
- b = unbase64char(x[1]);
- if (b < 0)
- return -EINVAL;
-
- c = unbase64char(x[2]);
- if (c < 0)
- return -EINVAL;
-
- /* c == 00ZZZZ00 */
- if (c & 3)
- return -EINVAL;
-
- *(z++) = (uint8_t) a << 2 | (uint8_t) b >> 4; /* XXXXXXYY */
- *(z++) = (uint8_t) b << 4 | (uint8_t) c >> 2; /* YYYYZZZZ */
-
- break;
- case 2:
- a = unbase64char(x[0]);
- if (a < 0)
- return -EINVAL;
-
- b = unbase64char(x[1]);
- if (b < 0)
- return -EINVAL;
-
- /* b == 00YY0000 */
- if (b & 15)
- return -EINVAL;
-
- *(z++) = (uint8_t) a << 2 | (uint8_t) (b >> 4); /* XXXXXXYY */
-
- break;
- case 0:
-
- break;
- default:
- return -EINVAL;
- }
-
- *z = 0;
-
- *mem = r;
- r = NULL;
- *_len = len;
-
- return 0;
- }
-
- char octchar(int x) {
- return '0' + (x & 7);
- }
-
- int unoctchar(char c) {
-
- if (c >= '0' && c <= '7')
- return c - '0';
-
- return -EINVAL;
- }
-
- char decchar(int x) {
- return '0' + (x % 10);
- }
-
- int undecchar(char c) {
-
- if (c >= '0' && c <= '9')
- return c - '0';
-
- return -EINVAL;
- }
-
- char *cescape(const char *s) {
- char *r, *t;
- const char *f;
-
- assert(s);
-
- /* Does C style string escaping. May be reversed with
- * cunescape(). */
-
- r = new(char, strlen(s)*4 + 1);
- if (!r)
- return NULL;
-
- for (f = s, t = r; *f; f++)
- t += cescape_char(*f, t);
-
- *t = 0;
-
- return r;
- }
-
- static int cunescape_one(const char *p, size_t length, char *ret, uint32_t *ret_unicode) {
- int r = 1;
-
- assert(p);
- assert(*p);
- assert(ret);
-
- /* Unescapes C style. Returns the unescaped character in ret,
- * unless we encountered a \u sequence in which case the full
- * unicode character is returned in ret_unicode, instead. */
-
- if (length != (size_t) -1 && length < 1)
- return -EINVAL;
-
- switch (p[0]) {
-
- case 'a':
- *ret = '\a';
- break;
- case 'b':
- *ret = '\b';
- break;
- case 'f':
- *ret = '\f';
- break;
- case 'n':
- *ret = '\n';
- break;
- case 'r':
- *ret = '\r';
- break;
- case 't':
- *ret = '\t';
- break;
- case 'v':
- *ret = '\v';
- break;
- case '\\':
- *ret = '\\';
- break;
- case '"':
- *ret = '"';
- break;
- case '\'':
- *ret = '\'';
- break;
-
- case 's':
- /* This is an extension of the XDG syntax files */
- *ret = ' ';
- break;
-
- case 'x': {
- /* hexadecimal encoding */
- int a, b;
-
- if (length != (size_t) -1 && length < 3)
- return -EINVAL;
-
- a = unhexchar(p[1]);
- if (a < 0)
- return -EINVAL;
-
- b = unhexchar(p[2]);
- if (b < 0)
- return -EINVAL;
-
- /* Don't allow NUL bytes */
- if (a == 0 && b == 0)
- return -EINVAL;
-
- *ret = (char) ((a << 4U) | b);
- r = 3;
- break;
- }
-
- case 'u': {
- /* C++11 style 16bit unicode */
-
- int a[4];
- unsigned i;
- uint32_t c;
-
- if (length != (size_t) -1 && length < 5)
- return -EINVAL;
-
- for (i = 0; i < 4; i++) {
- a[i] = unhexchar(p[1 + i]);
- if (a[i] < 0)
- return a[i];
- }
-
- c = ((uint32_t) a[0] << 12U) | ((uint32_t) a[1] << 8U) | ((uint32_t) a[2] << 4U) | (uint32_t) a[3];
-
- /* Don't allow 0 chars */
- if (c == 0)
- return -EINVAL;
-
- if (c < 128)
- *ret = c;
- else {
- if (!ret_unicode)
- return -EINVAL;
-
- *ret = 0;
- *ret_unicode = c;
- }
-
- r = 5;
- break;
- }
-
- case 'U': {
- /* C++11 style 32bit unicode */
-
- int a[8];
- unsigned i;
- uint32_t c;
-
- if (length != (size_t) -1 && length < 9)
- return -EINVAL;
-
- for (i = 0; i < 8; i++) {
- a[i] = unhexchar(p[1 + i]);
- if (a[i] < 0)
- return a[i];
- }
-
- c = ((uint32_t) a[0] << 28U) | ((uint32_t) a[1] << 24U) | ((uint32_t) a[2] << 20U) | ((uint32_t) a[3] << 16U) |
- ((uint32_t) a[4] << 12U) | ((uint32_t) a[5] << 8U) | ((uint32_t) a[6] << 4U) | (uint32_t) a[7];
-
- /* Don't allow 0 chars */
- if (c == 0)
- return -EINVAL;
-
- /* Don't allow invalid code points */
- if (!unichar_is_valid(c))
- return -EINVAL;
-
- if (c < 128)
- *ret = c;
- else {
- if (!ret_unicode)
- return -EINVAL;
-
- *ret = 0;
- *ret_unicode = c;
- }
-
- r = 9;
- break;
- }
-
- case '0':
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7': {
- /* octal encoding */
- int a, b, c;
- uint32_t m;
-
- if (length != (size_t) -1 && length < 3)
- return -EINVAL;
-
- a = unoctchar(p[0]);
- if (a < 0)
- return -EINVAL;
-
- b = unoctchar(p[1]);
- if (b < 0)
- return -EINVAL;
-
- c = unoctchar(p[2]);
- if (c < 0)
- return -EINVAL;
-
- /* don't allow NUL bytes */
- if (a == 0 && b == 0 && c == 0)
- return -EINVAL;
-
- /* Don't allow bytes above 255 */
- m = ((uint32_t) a << 6U) | ((uint32_t) b << 3U) | (uint32_t) c;
- if (m > 255)
- return -EINVAL;
-
- *ret = m;
- r = 3;
- break;
- }
-
- default:
- return -EINVAL;
- }
-
- return r;
- }
-
- int cunescape_length_with_prefix(const char *s, size_t length, const char *prefix, UnescapeFlags flags, char **ret) {
- char *r, *t;
- const char *f;
- size_t pl;
-
- assert(s);
- assert(ret);
-
- /* Undoes C style string escaping, and optionally prefixes it. */
-
- pl = prefix ? strlen(prefix) : 0;
-
- r = new(char, pl+length+1);
- if (!r)
- return -ENOMEM;
-
- if (prefix)
- memcpy(r, prefix, pl);
-
- for (f = s, t = r + pl; f < s + length; f++) {
- size_t remaining;
- uint32_t u = 0;
- char c;
- int k;
-
- remaining = s + length - f;
- assert(remaining > 0);
-
- if (*f != '\\') {
- /* A literal literal, copy verbatim */
- *(t++) = *f;
- continue;
- }
-
- if (remaining == 1) {
- if (flags & UNESCAPE_RELAX) {
- /* A trailing backslash, copy verbatim */
- *(t++) = *f;
- continue;
- }
-
- free(r);
- return -EINVAL;
- }
-
- k = cunescape_one(f + 1, remaining - 1, &c, &u);
- if (k < 0) {
- if (flags & UNESCAPE_RELAX) {
- /* Invalid escape code, let's take it literal then */
- *(t++) = '\\';
- continue;
- }
-
- free(r);
- return k;
- }
-
- if (c != 0)
- /* Non-Unicode? Let's encode this directly */
- *(t++) = c;
- else
- /* Unicode? Then let's encode this in UTF-8 */
- t += utf8_encode_unichar(t, u);
-
- f += k;
- }
-
- *t = 0;
-
- *ret = r;
- return t - r;
- }
-
- #if 0 /* NM_IGNORED */
- int cunescape_length(const char *s, size_t length, UnescapeFlags flags, char **ret) {
- return cunescape_length_with_prefix(s, length, NULL, flags, ret);
- }
-
- int cunescape(const char *s, UnescapeFlags flags, char **ret) {
- return cunescape_length(s, strlen(s), flags, ret);
- }
-
- char *xescape(const char *s, const char *bad) {
- char *r, *t;
- const char *f;
-
- /* Escapes all chars in bad, in addition to \ and all special
- * chars, in \xFF style escaping. May be reversed with
- * cunescape(). */
-
- r = new(char, strlen(s) * 4 + 1);
- if (!r)
- return NULL;
-
- for (f = s, t = r; *f; f++) {
-
- if ((*f < ' ') || (*f >= 127) ||
- (*f == '\\') || strchr(bad, *f)) {
- *(t++) = '\\';
- *(t++) = 'x';
- *(t++) = hexchar(*f >> 4);
- *(t++) = hexchar(*f);
- } else
- *(t++) = *f;
- }
-
- *t = 0;
-
- return r;
- }
-
- char *ascii_strlower(char *t) {
- char *p;
-
- assert(t);
-
- for (p = t; *p; p++)
- if (*p >= 'A' && *p <= 'Z')
- *p = *p - 'A' + 'a';
-
- return t;
- }
-
- _pure_ static bool hidden_file_allow_backup(const char *filename) {
- assert(filename);
-
- return
- filename[0] == '.' ||
- streq(filename, "lost+found") ||
- streq(filename, "aquota.user") ||
- streq(filename, "aquota.group") ||
- endswith(filename, ".rpmnew") ||
- endswith(filename, ".rpmsave") ||
- endswith(filename, ".rpmorig") ||
- endswith(filename, ".dpkg-old") ||
- endswith(filename, ".dpkg-new") ||
- endswith(filename, ".dpkg-tmp") ||
- endswith(filename, ".dpkg-dist") ||
- endswith(filename, ".dpkg-bak") ||
- endswith(filename, ".dpkg-backup") ||
- endswith(filename, ".dpkg-remove") ||
- endswith(filename, ".swp");
- }
-
- bool hidden_file(const char *filename) {
- assert(filename);
-
- if (endswith(filename, "~"))
- return true;
-
- return hidden_file_allow_backup(filename);
- }
-
- int fd_nonblock(int fd, bool nonblock) {
- int flags, nflags;
-
- assert(fd >= 0);
-
- flags = fcntl(fd, F_GETFL, 0);
- if (flags < 0)
- return -errno;
-
- if (nonblock)
- nflags = flags | O_NONBLOCK;
- else
- nflags = flags & ~O_NONBLOCK;
-
- if (nflags == flags)
- return 0;
-
- if (fcntl(fd, F_SETFL, nflags) < 0)
- return -errno;
-
- return 0;
- }
-
- int fd_cloexec(int fd, bool cloexec) {
- int flags, nflags;
-
- assert(fd >= 0);
-
- flags = fcntl(fd, F_GETFD, 0);
- if (flags < 0)
- return -errno;
-
- if (cloexec)
- nflags = flags | FD_CLOEXEC;
- else
- nflags = flags & ~FD_CLOEXEC;
-
- if (nflags == flags)
- return 0;
-
- if (fcntl(fd, F_SETFD, nflags) < 0)
- return -errno;
-
- return 0;
- }
-
- _pure_ static bool fd_in_set(int fd, const int fdset[], unsigned n_fdset) {
- unsigned i;
-
- assert(n_fdset == 0 || fdset);
-
- for (i = 0; i < n_fdset; i++)
- if (fdset[i] == fd)
- return true;
-
- return false;
- }
-
- int close_all_fds(const int except[], unsigned n_except) {
- _cleanup_closedir_ DIR *d = NULL;
- struct dirent *de;
- int r = 0;
-
- assert(n_except == 0 || except);
-
- d = opendir("/proc/self/fd");
- if (!d) {
- int fd;
- struct rlimit rl;
-
- /* When /proc isn't available (for example in chroots)
- * the fallback is brute forcing through the fd
- * table */
-
- assert_se(getrlimit(RLIMIT_NOFILE, &rl) >= 0);
- for (fd = 3; fd < (int) rl.rlim_max; fd ++) {
-
- if (fd_in_set(fd, except, n_except))
- continue;
-
- if (close_nointr(fd) < 0)
- if (errno != EBADF && r == 0)
- r = -errno;
- }
-
- return r;
- }
-
- while ((de = readdir(d))) {
- int fd = -1;
-
- if (hidden_file(de->d_name))
- continue;
-
- if (safe_atoi(de->d_name, &fd) < 0)
- /* Let's better ignore this, just in case */
- continue;
-
- if (fd < 3)
- continue;
-
- if (fd == dirfd(d))
- continue;
-
- if (fd_in_set(fd, except, n_except))
- continue;
-
- if (close_nointr(fd) < 0) {
- /* Valgrind has its own FD and doesn't want to have it closed */
- if (errno != EBADF && r == 0)
- r = -errno;
- }
- }
-
- return r;
- }
- #endif /* NM_IGNORED */
-
- bool chars_intersect(const char *a, const char *b) {
- const char *p;
-
- /* Returns true if any of the chars in a are in b. */
- for (p = a; *p; p++)
- if (strchr(b, *p))
- return true;
-
- return false;
- }
-
- #if 0 /* NM_IGNORED */
- bool fstype_is_network(const char *fstype) {
- static const char table[] =
- "afs\0"
- "cifs\0"
- "smbfs\0"
- "sshfs\0"
- "ncpfs\0"
- "ncp\0"
- "nfs\0"
- "nfs4\0"
- "gfs\0"
- "gfs2\0"
- "glusterfs\0";
-
- const char *x;
-
- x = startswith(fstype, "fuse.");
- if (x)
- fstype = x;
-
- return nulstr_contains(table, fstype);
- }
-
- int flush_fd(int fd) {
- struct pollfd pollfd = {
- .fd = fd,
- .events = POLLIN,
- };
-
- for (;;) {
- char buf[LINE_MAX];
- ssize_t l;
- int r;
-
- r = poll(&pollfd, 1, 0);
- if (r < 0) {
- if (errno == EINTR)
- continue;
-
- return -errno;
-
- } else if (r == 0)
- return 0;
-
- l = read(fd, buf, sizeof(buf));
- if (l < 0) {
-
- if (errno == EINTR)
- continue;
-
- if (errno == EAGAIN)
- return 0;
-
- return -errno;
- } else if (l == 0)
- return 0;
- }
- }
-
- void safe_close_pair(int p[]) {
- assert(p);
-
- if (p[0] == p[1]) {
- /* Special case pairs which use the same fd in both
- * directions... */
- p[0] = p[1] = safe_close(p[0]);
- return;
- }
-
- p[0] = safe_close(p[0]);
- p[1] = safe_close(p[1]);
- }
-
- #endif /* NM_IGNORED */
- ssize_t loop_read(int fd, void *buf, size_t nbytes, bool do_poll) {
- uint8_t *p = buf;
- ssize_t n = 0;
-
- assert(fd >= 0);
- assert(buf);
-
- /* If called with nbytes == 0, let's call read() at least
- * once, to validate the operation */
-
- if (nbytes > (size_t) SSIZE_MAX)
- return -EINVAL;
-
- do {
- ssize_t k;
-
- k = read(fd, p, nbytes);
- if (k < 0) {
- if (errno == EINTR)
- continue;
-
- if (errno == EAGAIN && do_poll) {
-
- /* We knowingly ignore any return value here,
- * and expect that any error/EOF is reported
- * via read() */
-
- (void) fd_wait_for_event(fd, POLLIN, USEC_INFINITY);
- continue;
- }
-
- return n > 0 ? n : -errno;
- }
-
- if (k == 0)
- return n;
-
- assert((size_t) k <= nbytes);
-
- p += k;
- nbytes -= k;
- n += k;
- } while (nbytes > 0);
-
- return n;
- }
-
- int loop_read_exact(int fd, void *buf, size_t nbytes, bool do_poll) {
- ssize_t n;
-
- n = loop_read(fd, buf, nbytes, do_poll);
- if (n < 0)
- return (int) n;
- if ((size_t) n != nbytes)
- return -EIO;
-
- return 0;
- }
-
- #if 0 /* NM_IGNORED */
- int loop_write(int fd, const void *buf, size_t nbytes, bool do_poll) {
- const uint8_t *p = buf;
-
- assert(fd >= 0);
- assert(buf);
-
- if (nbytes > (size_t) SSIZE_MAX)
- return -EINVAL;
-
- do {
- ssize_t k;
-
- k = write(fd, p, nbytes);
- if (k < 0) {
- if (errno == EINTR)
- continue;
-
- if (errno == EAGAIN && do_poll) {
- /* We knowingly ignore any return value here,
- * and expect that any error/EOF is reported
- * via write() */
-
- (void) fd_wait_for_event(fd, POLLOUT, USEC_INFINITY);
- continue;
- }
-
- return -errno;
- }
-
- if (_unlikely_(nbytes > 0 && k == 0)) /* Can't really happen */
- return -EIO;
-
- assert((size_t) k <= nbytes);
-
- p += k;
- nbytes -= k;
- } while (nbytes > 0);
-
- return 0;
- }
-
- int parse_size(const char *t, uint64_t base, uint64_t *size) {
-
- /* Soo, sometimes we want to parse IEC binary suffixes, and
- * sometimes SI decimal suffixes. This function can parse
- * both. Which one is the right way depends on the
- * context. Wikipedia suggests that SI is customary for
- * hardware metrics and network speeds, while IEC is
- * customary for most data sizes used by software and volatile
- * (RAM) memory. Hence be careful which one you pick!
- *
- * In either case we use just K, M, G as suffix, and not Ki,
- * Mi, Gi or so (as IEC would suggest). That's because that's
- * frickin' ugly. But this means you really need to make sure
- * to document which base you are parsing when you use this
- * call. */
-
- struct table {
- const char *suffix;
- unsigned long long factor;
- };
-
- static const struct table iec[] = {
- { "E", 1024ULL*1024ULL*1024ULL*1024ULL*1024ULL*1024ULL },
- { "P", 1024ULL*1024ULL*1024ULL*1024ULL*1024ULL },
- { "T", 1024ULL*1024ULL*1024ULL*1024ULL },
- { "G", 1024ULL*1024ULL*1024ULL },
- { "M", 1024ULL*1024ULL },
- { "K", 1024ULL },
- { "B", 1ULL },
- { "", 1ULL },
- };
-
- static const struct table si[] = {
- { "E", 1000ULL*1000ULL*1000ULL*1000ULL*1000ULL*1000ULL },
- { "P", 1000ULL*1000ULL*1000ULL*1000ULL*1000ULL },
- { "T", 1000ULL*1000ULL*1000ULL*1000ULL },
- { "G", 1000ULL*1000ULL*1000ULL },
- { "M", 1000ULL*1000ULL },
- { "K", 1000ULL },
- { "B", 1ULL },
- { "", 1ULL },
- };
-
- const struct table *table;
- const char *p;
- unsigned long long r = 0;
- unsigned n_entries, start_pos = 0;
-
- assert(t);
- assert(base == 1000 || base == 1024);
- assert(size);
-
- if (base == 1000) {
- table = si;
- n_entries = ELEMENTSOF(si);
- } else {
- table = iec;
- n_entries = ELEMENTSOF(iec);
- }
-
- p = t;
- do {
- unsigned long long l, tmp;
- double frac = 0;
- char *e;
- unsigned i;
-
- p += strspn(p, WHITESPACE);
- if (*p == '-')
- return -ERANGE;
-
- errno = 0;
- l = strtoull(p, &e, 10);
- if (errno > 0)
- return -errno;
- if (e == p)
- return -EINVAL;
-
- if (*e == '.') {
- e++;
-
- /* strtoull() itself would accept space/+/- */
- if (*e >= '0' && *e <= '9') {
- unsigned long long l2;
- char *e2;
-
- l2 = strtoull(e, &e2, 10);
- if (errno > 0)
- return -errno;
-
- /* Ignore failure. E.g. 10.M is valid */
- frac = l2;
- for (; e < e2; e++)
- frac /= 10;
- }
- }
-
- e += strspn(e, WHITESPACE);
-
- for (i = start_pos; i < n_entries; i++)
- if (startswith(e, table[i].suffix))
- break;
-
- if (i >= n_entries)
- return -EINVAL;
-
- if (l + (frac > 0) > ULLONG_MAX / table[i].factor)
- return -ERANGE;
-
- tmp = l * table[i].factor + (unsigned long long) (frac * table[i].factor);
- if (tmp > ULLONG_MAX - r)
- return -ERANGE;
-
- r += tmp;
- if ((unsigned long long) (uint64_t) r != r)
- return -ERANGE;
-
- p = e + strlen(table[i].suffix);
-
- start_pos = i + 1;
-
- } while (*p);
-
- *size = r;
-
- return 0;
- }
-
- bool is_device_path(const char *path) {
-
- /* Returns true on paths that refer to a device, either in
- * sysfs or in /dev */
-
- return
- path_startswith(path, "/dev/") ||
- path_startswith(path, "/sys/");
- }
-
- int dir_is_empty(const char *path) {
- _cleanup_closedir_ DIR *d;
-
- d = opendir(path);
- if (!d)
- return -errno;
-
- for (;;) {
- struct dirent *de;
-
- errno = 0;
- de = readdir(d);
- if (!de && errno != 0)
- return -errno;
-
- if (!de)
- return 1;
-
- if (!hidden_file(de->d_name))
- return 0;
- }
- }
-
- char* dirname_malloc(const char *path) {
- char *d, *dir, *dir2;
-
- d = strdup(path);
- if (!d)
- return NULL;
- dir = dirname(d);
- assert(dir);
-
- if (dir != d) {
- dir2 = strdup(dir);
- free(d);
- return dir2;
- }
-
- return dir;
- }
-
- void rename_process(const char name[8]) {
- assert(name);
-
- /* This is a like a poor man's setproctitle(). It changes the
- * comm field, argv[0], and also the glibc's internally used
- * name of the process. For the first one a limit of 16 chars
- * applies, to the second one usually one of 10 (i.e. length
- * of "/sbin/init"), to the third one one of 7 (i.e. length of
- * "systemd"). If you pass a longer string it will be
- * truncated */
-
- prctl(PR_SET_NAME, name);
-
- if (program_invocation_name)
- strncpy(program_invocation_name, name, strlen(program_invocation_name));
-
- if (saved_argc > 0) {
- int i;
-
- if (saved_argv[0])
- strncpy(saved_argv[0], name, strlen(saved_argv[0]));
-
- for (i = 1; i < saved_argc; i++) {
- if (!saved_argv[i])
- break;
-
- memzero(saved_argv[i], strlen(saved_argv[i]));
- }
- }
- }
-
- char *lookup_uid(uid_t uid) {
- long bufsize;
- char *name;
- _cleanup_free_ char *buf = NULL;
- struct passwd pwbuf, *pw = NULL;
-
- /* Shortcut things to avoid NSS lookups */
- if (uid == 0)
- return strdup("root");
-
- bufsize = sysconf(_SC_GETPW_R_SIZE_MAX);
- if (bufsize <= 0)
- bufsize = 4096;
-
- buf = malloc(bufsize);
- if (!buf)
- return NULL;
-
- if (getpwuid_r(uid, &pwbuf, buf, bufsize, &pw) == 0 && pw)
- return strdup(pw->pw_name);
-
- if (asprintf(&name, UID_FMT, uid) < 0)
- return NULL;
-
- return name;
- }
-
- char* getlogname_malloc(void) {
- uid_t uid;
- struct stat st;
-
- if (isatty(STDIN_FILENO) && fstat(STDIN_FILENO, &st) >= 0)
- uid = st.st_uid;
- else
- uid = getuid();
-
- return lookup_uid(uid);
- }
-
- char *getusername_malloc(void) {
- const char *e;
-
- e = getenv("USER");
- if (e)
- return strdup(e);
-
- return lookup_uid(getuid());
- }
-
- bool is_temporary_fs(const struct statfs *s) {
- assert(s);
-
- return F_TYPE_EQUAL(s->f_type, TMPFS_MAGIC) ||
- F_TYPE_EQUAL(s->f_type, RAMFS_MAGIC);
- }
-
- int fd_is_temporary_fs(int fd) {
- struct statfs s;
-
- if (fstatfs(fd, &s) < 0)
- return -errno;
-
- return is_temporary_fs(&s);
- }
-
- int chmod_and_chown(const char *path, mode_t mode, uid_t uid, gid_t gid) {
- assert(path);
-
- /* Under the assumption that we are running privileged we
- * first change the access mode and only then hand out
- * ownership to avoid a window where access is too open. */
-
- if (mode != MODE_INVALID)
- if (chmod(path, mode) < 0)
- return -errno;
-
- if (uid != UID_INVALID || gid != GID_INVALID)
- if (chown(path, uid, gid) < 0)
- return -errno;
-
- return 0;
- }
-
- int fchmod_and_fchown(int fd, mode_t mode, uid_t uid, gid_t gid) {
- assert(fd >= 0);
-
- /* Under the assumption that we are running privileged we
- * first change the access mode and only then hand out
- * ownership to avoid a window where access is too open. */
-
- if (mode != MODE_INVALID)
- if (fchmod(fd, mode) < 0)
- return -errno;
-
- if (uid != UID_INVALID || gid != GID_INVALID)
- if (fchown(fd, uid, gid) < 0)
- return -errno;
-
- return 0;
- }
-
- int files_same(const char *filea, const char *fileb) {
- struct stat a, b;
-
- if (stat(filea, &a) < 0)
- return -errno;
-
- if (stat(fileb, &b) < 0)
- return -errno;
-
- return a.st_dev == b.st_dev &&
- a.st_ino == b.st_ino;
- }
-
- int running_in_chroot(void) {
- int ret;
-
- ret = files_same("/proc/1/root", "/");
- if (ret < 0)
- return ret;
-
- return ret == 0;
- }
-
- static char *ascii_ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigned percent) {
- size_t x;
- char *r;
-
- assert(s);
- assert(percent <= 100);
- assert(new_length >= 3);
-
- if (old_length <= 3 || old_length <= new_length)
- return strndup(s, old_length);
-
- r = new0(char, new_length+1);
- if (!r)
- return NULL;
-
- x = (new_length * percent) / 100;
-
- if (x > new_length - 3)
- x = new_length - 3;
-
- memcpy(r, s, x);
- r[x] = '.';
- r[x+1] = '.';
- r[x+2] = '.';
- memcpy(r + x + 3,
- s + old_length - (new_length - x - 3),
- new_length - x - 3);
-
- return r;
- }
-
- char *ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigned percent) {
- size_t x;
- char *e;
- const char *i, *j;
- unsigned k, len, len2;
-
- assert(s);
- assert(percent <= 100);
- assert(new_length >= 3);
-
- /* if no multibyte characters use ascii_ellipsize_mem for speed */
- if (ascii_is_valid(s))
- return ascii_ellipsize_mem(s, old_length, new_length, percent);
-
- if (old_length <= 3 || old_length <= new_length)
- return strndup(s, old_length);
-
- x = (new_length * percent) / 100;
-
- if (x > new_length - 3)
- x = new_length - 3;
-
- k = 0;
- for (i = s; k < x && i < s + old_length; i = utf8_next_char(i)) {
- int c;
-
- c = utf8_encoded_to_unichar(i);
- if (c < 0)
- return NULL;
- k += unichar_iswide(c) ? 2 : 1;
- }
-
- if (k > x) /* last character was wide and went over quota */
- x ++;
-
- for (j = s + old_length; k < new_length && j > i; ) {
- int c;
-
- j = utf8_prev_char(j);
- c = utf8_encoded_to_unichar(j);
- if (c < 0)
- return NULL;
- k += unichar_iswide(c) ? 2 : 1;
- }
- assert(i <= j);
-
- /* we don't actually need to ellipsize */
- if (i == j)
- return memdup(s, old_length + 1);
-
- /* make space for ellipsis */
- j = utf8_next_char(j);
-
- len = i - s;
- len2 = s + old_length - j;
- e = new(char, len + 3 + len2 + 1);
- if (!e)
- return NULL;
-
- /*
- printf("old_length=%zu new_length=%zu x=%zu len=%u len2=%u k=%u\n",
- old_length, new_length, x, len, len2, k);
- */
-
- memcpy(e, s, len);
- e[len] = 0xe2; /* tri-dot ellipsis: … */
- e[len + 1] = 0x80;
- e[len + 2] = 0xa6;
-
- memcpy(e + len + 3, j, len2 + 1);
-
- return e;
- }
-
- char *ellipsize(const char *s, size_t length, unsigned percent) {
- return ellipsize_mem(s, strlen(s), length, percent);
- }
-
- int touch_file(const char *path, bool parents, usec_t stamp, uid_t uid, gid_t gid, mode_t mode) {
- _cleanup_close_ int fd;
- int r;
-
- assert(path);
-
- if (parents)
- mkdir_parents(path, 0755);
-
- fd = open(path, O_WRONLY|O_CREAT|O_CLOEXEC|O_NOCTTY, mode > 0 ? mode : 0644);
- if (fd < 0)
- return -errno;
-
- if (mode > 0) {
- r = fchmod(fd, mode);
- if (r < 0)
- return -errno;
- }
-
- if (uid != UID_INVALID || gid != GID_INVALID) {
- r = fchown(fd, uid, gid);
- if (r < 0)
- return -errno;
- }
-
- if (stamp != USEC_INFINITY) {
- struct timespec ts[2];
-
- timespec_store(&ts[0], stamp);
- ts[1] = ts[0];
- r = futimens(fd, ts);
- } else
- r = futimens(fd, NULL);
- if (r < 0)
- return -errno;
-
- return 0;
- }
-
- int touch(const char *path) {
- return touch_file(path, false, USEC_INFINITY, UID_INVALID, GID_INVALID, 0);
- }
-
- static char *unquote(const char *s, const char* quotes) {
- size_t l;
- assert(s);
-
- /* This is rather stupid, simply removes the heading and
- * trailing quotes if there is one. Doesn't care about
- * escaping or anything.
- *
- * DON'T USE THIS FOR NEW CODE ANYMORE!*/
-
- l = strlen(s);
- if (l < 2)
- return strdup(s);
-
- if (strchr(quotes, s[0]) && s[l-1] == s[0])
- return strndup(s+1, l-2);
-
- return strdup(s);
- }
-
- noreturn void freeze(void) {
-
- /* Make sure nobody waits for us on a socket anymore */
- close_all_fds(NULL, 0);
-
- sync();
-
- for (;;)
- pause();
- }
-
- bool null_or_empty(struct stat *st) {
- assert(st);
-
- if (S_ISREG(st->st_mode) && st->st_size <= 0)
- return true;
-
- if (S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode))
- return true;
-
- return false;
- }
-
- int null_or_empty_path(const char *fn) {
- struct stat st;
-
- assert(fn);
-
- if (stat(fn, &st) < 0)
- return -errno;
-
- return null_or_empty(&st);
- }
-
- int null_or_empty_fd(int fd) {
- struct stat st;
-
- assert(fd >= 0);
-
- if (fstat(fd, &st) < 0)
- return -errno;
-
- return null_or_empty(&st);
- }
-
- DIR *xopendirat(int fd, const char *name, int flags) {
- int nfd;
- DIR *d;
-
- assert(!(flags & O_CREAT));
-
- nfd = openat(fd, name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|flags, 0);
- if (nfd < 0)
- return NULL;
-
- d = fdopendir(nfd);
- if (!d) {
- safe_close(nfd);
- return NULL;
- }
-
- return d;
- }
-
- static char *tag_to_udev_node(const char *tagvalue, const char *by) {
- _cleanup_free_ char *t = NULL, *u = NULL;
- size_t enc_len;
-
- u = unquote(tagvalue, QUOTES);
- if (!u)
- return NULL;
-
- enc_len = strlen(u) * 4 + 1;
- t = new(char, enc_len);
- if (!t)
- return NULL;
-
- if (encode_devnode_name(u, t, enc_len) < 0)
- return NULL;
-
- return strjoin("/dev/disk/by-", by, "/", t, NULL);
- }
-
- char *fstab_node_to_udev_node(const char *p) {
- assert(p);
-
- if (startswith(p, "LABEL="))
- return tag_to_udev_node(p+6, "label");
-
- if (startswith(p, "UUID="))
- return tag_to_udev_node(p+5, "uuid");
-
- if (startswith(p, "PARTUUID="))
- return tag_to_udev_node(p+9, "partuuid");
-
- if (startswith(p, "PARTLABEL="))
- return tag_to_udev_node(p+10, "partlabel");
-
- return strdup(p);
- }
-
- bool dirent_is_file(const struct dirent *de) {
- assert(de);
-
- if (hidden_file(de->d_name))
- return false;
-
- if (de->d_type != DT_REG &&
- de->d_type != DT_LNK &&
- de->d_type != DT_UNKNOWN)
- return false;
-
- return true;
- }
-
- bool dirent_is_file_with_suffix(const struct dirent *de, const char *suffix) {
- assert(de);
-
- if (de->d_type != DT_REG &&
- de->d_type != DT_LNK &&
- de->d_type != DT_UNKNOWN)
- return false;
-
- if (hidden_file_allow_backup(de->d_name))
- return false;
-
- return endswith(de->d_name, suffix);
- }
-
- static int do_execute(char **directories, usec_t timeout, char *argv[]) {
- _cleanup_hashmap_free_free_ Hashmap *pids = NULL;
- _cleanup_set_free_free_ Set *seen = NULL;
- char **directory;
-
- /* We fork this all off from a child process so that we can
- * somewhat cleanly make use of SIGALRM to set a time limit */
-
- (void) reset_all_signal_handlers();
- (void) reset_signal_mask();
-
- assert_se(prctl(PR_SET_PDEATHSIG, SIGTERM) == 0);
-
- pids = hashmap_new(NULL);
- if (!pids)
- return log_oom();
-
- seen = set_new(&string_hash_ops);
- if (!seen)
- return log_oom();
-
- STRV_FOREACH(directory, directories) {
- _cleanup_closedir_ DIR *d;
- struct dirent *de;
-
- d = opendir(*directory);
- if (!d) {
- if (errno == ENOENT)
- continue;
-
- return log_error_errno(errno, "Failed to open directory %s: %m", *directory);
- }
-
- FOREACH_DIRENT(de, d, break) {
- _cleanup_free_ char *path = NULL;
- pid_t pid;
- int r;
-
- if (!dirent_is_file(de))
- continue;
-
- if (set_contains(seen, de->d_name)) {
- log_debug("%1$s/%2$s skipped (%2$s was already seen).", *directory, de->d_name);
- continue;
- }
-
- r = set_put_strdup(seen, de->d_name);
- if (r < 0)
- return log_oom();
-
- path = strjoin(*directory, "/", de->d_name, NULL);
- if (!path)
- return log_oom();
-
- if (null_or_empty_path(path)) {
- log_debug("%s is empty (a mask).", path);
- continue;
- }
-
- pid = fork();
- if (pid < 0) {
- log_error_errno(errno, "Failed to fork: %m");
- continue;
- } else if (pid == 0) {
- char *_argv[2];
-
- assert_se(prctl(PR_SET_PDEATHSIG, SIGTERM) == 0);
-
- if (!argv) {
- _argv[0] = path;
- _argv[1] = NULL;
- argv = _argv;
- } else
- argv[0] = path;
-
- execv(path, argv);
- return log_error_errno(errno, "Failed to execute %s: %m", path);
- }
-
- log_debug("Spawned %s as " PID_FMT ".", path, pid);
-
- r = hashmap_put(pids, UINT_TO_PTR(pid), path);
- if (r < 0)
- return log_oom();
- path = NULL;
- }
- }
-
- /* Abort execution of this process after the timout. We simply
- * rely on SIGALRM as default action terminating the process,
- * and turn on alarm(). */
-
- if (timeout != USEC_INFINITY)
- alarm((timeout + USEC_PER_SEC - 1) / USEC_PER_SEC);
-
- while (!hashmap_isempty(pids)) {
- _cleanup_free_ char *path = NULL;
- pid_t pid;
-
- pid = PTR_TO_UINT(hashmap_first_key(pids));
- assert(pid > 0);
-
- path = hashmap_remove(pids, UINT_TO_PTR(pid));
- assert(path);
-
- wait_for_terminate_and_warn(path, pid, true);
- }
-
- return 0;
- }
-
- void execute_directories(const char* const* directories, usec_t timeout, char *argv[]) {
- pid_t executor_pid;
- int r;
- char *name;
- char **dirs = (char**) directories;
-
- assert(!strv_isempty(dirs));
-
- name = basename(dirs[0]);
- assert(!isempty(name));
-
- /* Executes all binaries in the directories in parallel and waits
- * for them to finish. Optionally a timeout is applied. If a file
- * with the same name exists in more than one directory, the
- * earliest one wins. */
-
- executor_pid = fork();
- if (executor_pid < 0) {
- log_error_errno(errno, "Failed to fork: %m");
- return;
-
- } else if (executor_pid == 0) {
- r = do_execute(dirs, timeout, argv);
- _exit(r < 0 ? EXIT_FAILURE : EXIT_SUCCESS);
- }
-
- wait_for_terminate_and_warn(name, executor_pid, true);
- }
-
- bool nulstr_contains(const char*nulstr, const char *needle) {
- const char *i;
-
- if (!nulstr)
- return false;
-
- NULSTR_FOREACH(i, nulstr)
- if (streq(i, needle))
- return true;
-
- return false;
- }
-
- bool plymouth_running(void) {
- return access("/run/plymouth/pid", F_OK) >= 0;
- }
- #endif /* NM_IGNORED */
-
- char* strshorten(char *s, size_t l) {
- assert(s);
-
- if (l < strlen(s))
- s[l] = 0;
-
- return s;
- }
-
- #if 0 /* NM_IGNORED */
- int pipe_eof(int fd) {
- struct pollfd pollfd = {
- .fd = fd,
- .events = POLLIN|POLLHUP,
- };
-
- int r;
-
- r = poll(&pollfd, 1, 0);
- if (r < 0)
- return -errno;
-
- if (r == 0)
- return 0;
-
- return pollfd.revents & POLLHUP;
- }
- #endif /* NM_IGNORED */
-
- int fd_wait_for_event(int fd, int event, usec_t t) {
-
- struct pollfd pollfd = {
- .fd = fd,
- .events = event,
- };
-
- struct timespec ts;
- int r;
-
- r = ppoll(&pollfd, 1, t == USEC_INFINITY ? NULL : timespec_store(&ts, t), NULL);
- if (r < 0)
- return -errno;
-
- if (r == 0)
- return 0;
-
- return pollfd.revents;
- }
-
- int fopen_temporary(const char *path, FILE **_f, char **_temp_path) {
- FILE *f;
- char *t;
- int r, fd;
-
- assert(path);
- assert(_f);
- assert(_temp_path);
-
- r = tempfn_xxxxxx(path, NULL, &t);
- if (r < 0)
- return r;
-
- fd = mkostemp_safe(t, O_WRONLY|O_CLOEXEC);
- if (fd < 0) {
- free(t);
- return -errno;
- }
-
- f = fdopen(fd, "we");
- if (!f) {
- unlink_noerrno(t);
- free(t);
- safe_close(fd);
- return -errno;
- }
-
- *_f = f;
- *_temp_path = t;
-
- return 0;
- }
-
- #if 0 /* NM_IGNORED */
- int symlink_atomic(const char *from, const char *to) {
- _cleanup_free_ char *t = NULL;
- int r;
-
- assert(from);
- assert(to);
-
- r = tempfn_random(to, NULL, &t);
- if (r < 0)
- return r;
-
- if (symlink(from, t) < 0)
- return -errno;
-
- if (rename(t, to) < 0) {
- unlink_noerrno(t);
- return -errno;
- }
-
- return 0;
- }
-
- int symlink_idempotent(const char *from, const char *to) {
- _cleanup_free_ char *p = NULL;
- int r;
-
- assert(from);
- assert(to);
-
- if (symlink(from, to) < 0) {
- if (errno != EEXIST)
- return -errno;
-
- r = readlink_malloc(to, &p);
- if (r < 0)
- return r;
-
- if (!streq(p, from))
- return -EINVAL;
- }
-
- return 0;
- }
-
- int mknod_atomic(const char *path, mode_t mode, dev_t dev) {
- _cleanup_free_ char *t = NULL;
- int r;
-
- assert(path);
-
- r = tempfn_random(path, NULL, &t);
- if (r < 0)
- return r;
-
- if (mknod(t, mode, dev) < 0)
- return -errno;
-
- if (rename(t, path) < 0) {
- unlink_noerrno(t);
- return -errno;
- }
-
- return 0;
- }
-
- int mkfifo_atomic(const char *path, mode_t mode) {
- _cleanup_free_ char *t = NULL;
- int r;
-
- assert(path);
-
- r = tempfn_random(path, NULL, &t);
- if (r < 0)
- return r;
-
- if (mkfifo(t, mode) < 0)
- return -errno;
-
- if (rename(t, path) < 0) {
- unlink_noerrno(t);
- return -errno;
- }
-
- return 0;
- }
-
- bool display_is_local(const char *display) {
- assert(display);
-
- return
- display[0] == ':' &&
- display[1] >= '0' &&
- display[1] <= '9';
- }
-
- int socket_from_display(const char *display, char **path) {
- size_t k;
- char *f, *c;
-
- assert(display);
- assert(path);
-
- if (!display_is_local(display))
- return -EINVAL;
-
- k = strspn(display+1, "0123456789");
-
- f = new(char, strlen("/tmp/.X11-unix/X") + k + 1);
- if (!f)
- return -ENOMEM;
-
- c = stpcpy(f, "/tmp/.X11-unix/X");
- memcpy(c, display+1, k);
- c[k] = 0;
-
- *path = f;
-
- return 0;
- }
-
- int get_user_creds(
- const char **username,
- uid_t *uid, gid_t *gid,
- const char **home,
- const char **shell) {
-
- struct passwd *p;
- uid_t u;
-
- assert(username);
- assert(*username);
-
- /* We enforce some special rules for uid=0: in order to avoid
- * NSS lookups for root we hardcode its data. */
-
- if (streq(*username, "root") || streq(*username, "0")) {
- *username = "root";
-
- if (uid)
- *uid = 0;
-
- if (gid)
- *gid = 0;
-
- if (home)
- *home = "/root";
-
- if (shell)
- *shell = "/bin/sh";
-
- return 0;
- }
-
- if (parse_uid(*username, &u) >= 0) {
- errno = 0;
- p = getpwuid(u);
-
- /* If there are multiple users with the same id, make
- * sure to leave $USER to the configured value instead
- * of the first occurrence in the database. However if
- * the uid was configured by a numeric uid, then let's
- * pick the real username from /etc/passwd. */
- if (p)
- *username = p->pw_name;
- } else {
- errno = 0;
- p = getpwnam(*username);
- }
-
- if (!p)
- return errno > 0 ? -errno : -ESRCH;
-
- if (uid)
- *uid = p->pw_uid;
-
- if (gid)
- *gid = p->pw_gid;
-
- if (home)
- *home = p->pw_dir;
-
- if (shell)
- *shell = p->pw_shell;
-
- return 0;
- }
-
- char* uid_to_name(uid_t uid) {
- struct passwd *p;
- char *r;
-
- if (uid == 0)
- return strdup("root");
-
- p = getpwuid(uid);
- if (p)
- return strdup(p->pw_name);
-
- if (asprintf(&r, UID_FMT, uid) < 0)
- return NULL;
-
- return r;
- }
-
- char* gid_to_name(gid_t gid) {
- struct group *p;
- char *r;
-
- if (gid == 0)
- return strdup("root");
-
- p = getgrgid(gid);
- if (p)
- return strdup(p->gr_name);
-
- if (asprintf(&r, GID_FMT, gid) < 0)
- return NULL;
-
- return r;
- }
-
- int get_group_creds(const char **groupname, gid_t *gid) {
- struct group *g;
- gid_t id;
-
- assert(groupname);
-
- /* We enforce some special rules for gid=0: in order to avoid
- * NSS lookups for root we hardcode its data. */
-
- if (streq(*groupname, "root") || streq(*groupname, "0")) {
- *groupname = "root";
-
- if (gid)
- *gid = 0;
-
- return 0;
- }
-
- if (parse_gid(*groupname, &id) >= 0) {
- errno = 0;
- g = getgrgid(id);
-
- if (g)
- *groupname = g->gr_name;
- } else {
- errno = 0;
- g = getgrnam(*groupname);
- }
-
- if (!g)
- return errno > 0 ? -errno : -ESRCH;
-
- if (gid)
- *gid = g->gr_gid;
-
- return 0;
- }
-
- int in_gid(gid_t gid) {
- gid_t *gids;
- int ngroups_max, r, i;
-
- if (getgid() == gid)
- return 1;
-
- if (getegid() == gid)
- return 1;
-
- ngroups_max = sysconf(_SC_NGROUPS_MAX);
- assert(ngroups_max > 0);
-
- gids = alloca(sizeof(gid_t) * ngroups_max);
-
- r = getgroups(ngroups_max, gids);
- if (r < 0)
- return -errno;
-
- for (i = 0; i < r; i++)
- if (gids[i] == gid)
- return 1;
-
- return 0;
- }
-
- int in_group(const char *name) {
- int r;
- gid_t gid;
-
- r = get_group_creds(&name, &gid);
- if (r < 0)
- return r;
-
- return in_gid(gid);
- }
-
- int glob_exists(const char *path) {
- _cleanup_globfree_ glob_t g = {};
- int k;
-
- assert(path);
-
- errno = 0;
- k = glob(path, GLOB_NOSORT|GLOB_BRACE, NULL, &g);
-
- if (k == GLOB_NOMATCH)
- return 0;
- else if (k == GLOB_NOSPACE)
- return -ENOMEM;
- else if (k == 0)
- return !strv_isempty(g.gl_pathv);
- else
- return errno ? -errno : -EIO;
- }
-
- int glob_extend(char ***strv, const char *path) {
- _cleanup_globfree_ glob_t g = {};
- int k;
- char **p;
-
- errno = 0;
- k = glob(path, GLOB_NOSORT|GLOB_BRACE, NULL, &g);
-
- if (k == GLOB_NOMATCH)
- return -ENOENT;
- else if (k == GLOB_NOSPACE)
- return -ENOMEM;
- else if (k != 0 || strv_isempty(g.gl_pathv))
- return errno ? -errno : -EIO;
-
- STRV_FOREACH(p, g.gl_pathv) {
- k = strv_extend(strv, *p);
- if (k < 0)
- break;
- }
-
- return k;
- }
-
- int dirent_ensure_type(DIR *d, struct dirent *de) {
- struct stat st;
-
- assert(d);
- assert(de);
-
- if (de->d_type != DT_UNKNOWN)
- return 0;
-
- if (fstatat(dirfd(d), de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0)
- return -errno;
-
- de->d_type =
- S_ISREG(st.st_mode) ? DT_REG :
- S_ISDIR(st.st_mode) ? DT_DIR :
- S_ISLNK(st.st_mode) ? DT_LNK :
- S_ISFIFO(st.st_mode) ? DT_FIFO :
- S_ISSOCK(st.st_mode) ? DT_SOCK :
- S_ISCHR(st.st_mode) ? DT_CHR :
- S_ISBLK(st.st_mode) ? DT_BLK :
- DT_UNKNOWN;
-
- return 0;
- }
-
- int get_files_in_directory(const char *path, char ***list) {
- _cleanup_closedir_ DIR *d = NULL;
- size_t bufsize = 0, n = 0;
- _cleanup_strv_free_ char **l = NULL;
-
- assert(path);
-
- /* Returns all files in a directory in *list, and the number
- * of files as return value. If list is NULL returns only the
- * number. */
-
- d = opendir(path);
- if (!d)
- return -errno;
-
- for (;;) {
- struct dirent *de;
-
- errno = 0;
- de = readdir(d);
- if (!de && errno != 0)
- return -errno;
- if (!de)
- break;
-
- dirent_ensure_type(d, de);
-
- if (!dirent_is_file(de))
- continue;
-
- if (list) {
- /* one extra slot is needed for the terminating NULL */
- if (!GREEDY_REALLOC(l, bufsize, n + 2))
- return -ENOMEM;
-
- l[n] = strdup(de->d_name);
- if (!l[n])
- return -ENOMEM;
-
- l[++n] = NULL;
- } else
- n++;
- }
-
- if (list) {
- *list = l;
- l = NULL; /* avoid freeing */
- }
-
- return n;
- }
- #endif /* NM_IGNORED */
-
- char *strjoin(const char *x, ...) {
- va_list ap;
- size_t l;
- char *r, *p;
-
- va_start(ap, x);
-
- if (x) {
- l = strlen(x);
-
- for (;;) {
- const char *t;
- size_t n;
-
- t = va_arg(ap, const char *);
- if (!t)
- break;
-
- n = strlen(t);
- if (n > ((size_t) -1) - l) {
- va_end(ap);
- return NULL;
- }
-
- l += n;
- }
- } else
- l = 0;
-
- va_end(ap);
-
- r = new(char, l+1);
- if (!r)
- return NULL;
-
- if (x) {
- p = stpcpy(r, x);
-
- va_start(ap, x);
-
- for (;;) {
- const char *t;
-
- t = va_arg(ap, const char *);
- if (!t)
- break;
-
- p = stpcpy(p, t);
- }
-
- va_end(ap);
- } else
- r[0] = 0;
-
- return r;
- }
-
- #if 0 /* NM_IGNORED */
- bool is_main_thread(void) {
- static thread_local int cached = 0;
-
- if (_unlikely_(cached == 0))
- cached = getpid() == gettid() ? 1 : -1;
-
- return cached > 0;
- }
-
- int block_get_whole_disk(dev_t d, dev_t *ret) {
- char *p, *s;
- int r;
- unsigned n, m;
-
- assert(ret);
-
- /* If it has a queue this is good enough for us */
- if (asprintf(&p, "/sys/dev/block/%u:%u/queue", major(d), minor(d)) < 0)
- return -ENOMEM;
-
- r = access(p, F_OK);
- free(p);
-
- if (r >= 0) {
- *ret = d;
- return 0;
- }
-
- /* If it is a partition find the originating device */
- if (asprintf(&p, "/sys/dev/block/%u:%u/partition", major(d), minor(d)) < 0)
- return -ENOMEM;
-
- r = access(p, F_OK);
- free(p);
-
- if (r < 0)
- return -ENOENT;
-
- /* Get parent dev_t */
- if (asprintf(&p, "/sys/dev/block/%u:%u/../dev", major(d), minor(d)) < 0)
- return -ENOMEM;
-
- r = read_one_line_file(p, &s);
- free(p);
-
- if (r < 0)
- return r;
-
- r = sscanf(s, "%u:%u", &m, &n);
- free(s);
-
- if (r != 2)
- return -EINVAL;
-
- /* Only return this if it is really good enough for us. */
- if (asprintf(&p, "/sys/dev/block/%u:%u/queue", m, n) < 0)
- return -ENOMEM;
-
- r = access(p, F_OK);
- free(p);
-
- if (r >= 0) {
- *ret = makedev(m, n);
- return 0;
- }
-
- return -ENOENT;
- }
-
- static const char *const ioprio_class_table[] = {
- [IOPRIO_CLASS_NONE] = "none",
- [IOPRIO_CLASS_RT] = "realtime",
- [IOPRIO_CLASS_BE] = "best-effort",
- [IOPRIO_CLASS_IDLE] = "idle"
- };
-
- DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(ioprio_class, int, INT_MAX);
-
- static const char *const sigchld_code_table[] = {
- [CLD_EXITED] = "exited",
- [CLD_KILLED] = "killed",
- [CLD_DUMPED] = "dumped",
- [CLD_TRAPPED] = "trapped",
- [CLD_STOPPED] = "stopped",
- [CLD_CONTINUED] = "continued",
- };
-
- DEFINE_STRING_TABLE_LOOKUP(sigchld_code, int);
-
- static const char *const log_facility_unshifted_table[LOG_NFACILITIES] = {
- [LOG_FAC(LOG_KERN)] = "kern",
- [LOG_FAC(LOG_USER)] = "user",
- [LOG_FAC(LOG_MAIL)] = "mail",
- [LOG_FAC(LOG_DAEMON)] = "daemon",
- [LOG_FAC(LOG_AUTH)] = "auth",
- [LOG_FAC(LOG_SYSLOG)] = "syslog",
- [LOG_FAC(LOG_LPR)] = "lpr",
- [LOG_FAC(LOG_NEWS)] = "news",
- [LOG_FAC(LOG_UUCP)] = "uucp",
- [LOG_FAC(LOG_CRON)] = "cron",
- [LOG_FAC(LOG_AUTHPRIV)] = "authpriv",
- [LOG_FAC(LOG_FTP)] = "ftp",
- [LOG_FAC(LOG_LOCAL0)] = "local0",
- [LOG_FAC(LOG_LOCAL1)] = "local1",
- [LOG_FAC(LOG_LOCAL2)] = "local2",
- [LOG_FAC(LOG_LOCAL3)] = "local3",
- [LOG_FAC(LOG_LOCAL4)] = "local4",
- [LOG_FAC(LOG_LOCAL5)] = "local5",
- [LOG_FAC(LOG_LOCAL6)] = "local6",
- [LOG_FAC(LOG_LOCAL7)] = "local7"
- };
-
- DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(log_facility_unshifted, int, LOG_FAC(~0));
-
- static const char *const log_level_table[] = {
- [LOG_EMERG] = "emerg",
- [LOG_ALERT] = "alert",
- [LOG_CRIT] = "crit",
- [LOG_ERR] = "err",
- [LOG_WARNING] = "warning",
- [LOG_NOTICE] = "notice",
- [LOG_INFO] = "info",
- [LOG_DEBUG] = "debug"
- };
-
- DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(log_level, int, LOG_DEBUG);
-
- static const char* const sched_policy_table[] = {
- [SCHED_OTHER] = "other",
- [SCHED_BATCH] = "batch",
- [SCHED_IDLE] = "idle",
- [SCHED_FIFO] = "fifo",
- [SCHED_RR] = "rr"
- };
-
- DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(sched_policy, int, INT_MAX);
-
- static const char* const rlimit_table[_RLIMIT_MAX] = {
- [RLIMIT_CPU] = "LimitCPU",
- [RLIMIT_FSIZE] = "LimitFSIZE",
- [RLIMIT_DATA] = "LimitDATA",
- [RLIMIT_STACK] = "LimitSTACK",
- [RLIMIT_CORE] = "LimitCORE",
- [RLIMIT_RSS] = "LimitRSS",
- [RLIMIT_NOFILE] = "LimitNOFILE",
- [RLIMIT_AS] = "LimitAS",
- [RLIMIT_NPROC] = "LimitNPROC",
- [RLIMIT_MEMLOCK] = "LimitMEMLOCK",
- [RLIMIT_LOCKS] = "LimitLOCKS",
- [RLIMIT_SIGPENDING] = "LimitSIGPENDING",
- [RLIMIT_MSGQUEUE] = "LimitMSGQUEUE",
- [RLIMIT_NICE] = "LimitNICE",
- [RLIMIT_RTPRIO] = "LimitRTPRIO",
- [RLIMIT_RTTIME] = "LimitRTTIME"
- };
-
- DEFINE_STRING_TABLE_LOOKUP(rlimit, int);
-
- static const char* const ip_tos_table[] = {
- [IPTOS_LOWDELAY] = "low-delay",
- [IPTOS_THROUGHPUT] = "throughput",
- [IPTOS_RELIABILITY] = "reliability",
- [IPTOS_LOWCOST] = "low-cost",
- };
-
- DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(ip_tos, int, 0xff);
-
- bool kexec_loaded(void) {
- bool loaded = false;
- char *s;
-
- if (read_one_line_file("/sys/kernel/kexec_loaded", &s) >= 0) {
- if (s[0] == '1')
- loaded = true;
- free(s);
- }
- return loaded;
- }
-
- int prot_from_flags(int flags) {
-
- switch (flags & O_ACCMODE) {
-
- case O_RDONLY:
- return PROT_READ;
-
- case O_WRONLY:
- return PROT_WRITE;
-
- case O_RDWR:
- return PROT_READ|PROT_WRITE;
-
- default:
- return -EINVAL;
- }
- }
-
- char *format_bytes(char *buf, size_t l, uint64_t t) {
- unsigned i;
-
- static const struct {
- const char *suffix;
- uint64_t factor;
- } table[] = {
- { "E", UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024) },
- { "P", UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024) },
- { "T", UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024) },
- { "G", UINT64_C(1024)*UINT64_C(1024)*UINT64_C(1024) },
- { "M", UINT64_C(1024)*UINT64_C(1024) },
- { "K", UINT64_C(1024) },
- };
-
- if (t == (uint64_t) -1)
- return NULL;
-
- for (i = 0; i < ELEMENTSOF(table); i++) {
-
- if (t >= table[i].factor) {
- snprintf(buf, l,
- "%" PRIu64 ".%" PRIu64 "%s",
- t / table[i].factor,
- ((t*UINT64_C(10)) / table[i].factor) % UINT64_C(10),
- table[i].suffix);
-
- goto finish;
- }
- }
-
- snprintf(buf, l, "%" PRIu64 "B", t);
-
- finish:
- buf[l-1] = 0;
- return buf;
-
- }
- #endif /* NM_IGNORED */
-
- void* memdup(const void *p, size_t l) {
- void *r;
-
- assert(p);
-
- r = malloc(l);
- if (!r)
- return NULL;
-
- memcpy(r, p, l);
- return r;
- }
-
- #if 0 /* NM_IGNORED */
- int fd_inc_sndbuf(int fd, size_t n) {
- int r, value;
- socklen_t l = sizeof(value);
-
- r = getsockopt(fd, SOL_SOCKET, SO_SNDBUF, &value, &l);
- if (r >= 0 && l == sizeof(value) && (size_t) value >= n*2)
- return 0;
-
- /* If we have the privileges we will ignore the kernel limit. */
-
- value = (int) n;
- if (setsockopt(fd, SOL_SOCKET, SO_SNDBUFFORCE, &value, sizeof(value)) < 0)
- if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &value, sizeof(value)) < 0)
- return -errno;
-
- return 1;
- }
-
- int fd_inc_rcvbuf(int fd, size_t n) {
- int r, value;
- socklen_t l = sizeof(value);
-
- r = getsockopt(fd, SOL_SOCKET, SO_RCVBUF, &value, &l);
- if (r >= 0 && l == sizeof(value) && (size_t) value >= n*2)
- return 0;
-
- /* If we have the privileges we will ignore the kernel limit. */
-
- value = (int) n;
- if (setsockopt(fd, SOL_SOCKET, SO_RCVBUFFORCE, &value, sizeof(value)) < 0)
- if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &value, sizeof(value)) < 0)
- return -errno;
- return 1;
- }
-
- int fork_agent(pid_t *pid, const int except[], unsigned n_except, const char *path, ...) {
- bool stdout_is_tty, stderr_is_tty;
- pid_t parent_pid, agent_pid;
- sigset_t ss, saved_ss;
- unsigned n, i;
- va_list ap;
- char **l;
-
- assert(pid);
- assert(path);
-
- /* Spawns a temporary TTY agent, making sure it goes away when
- * we go away */
-
- parent_pid = getpid();
-
- /* First we temporarily block all signals, so that the new
- * child has them blocked initially. This way, we can be sure
- * that SIGTERMs are not lost we might send to the agent. */
- assert_se(sigfillset(&ss) >= 0);
- assert_se(sigprocmask(SIG_SETMASK, &ss, &saved_ss) >= 0);
-
- agent_pid = fork();
- if (agent_pid < 0) {
- assert_se(sigprocmask(SIG_SETMASK, &saved_ss, NULL) >= 0);
- return -errno;
- }
-
- if (agent_pid != 0) {
- assert_se(sigprocmask(SIG_SETMASK, &saved_ss, NULL) >= 0);
- *pid = agent_pid;
- return 0;
- }
-
- /* In the child:
- *
- * Make sure the agent goes away when the parent dies */
- if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)
- _exit(EXIT_FAILURE);
-
- /* Make sure we actually can kill the agent, if we need to, in
- * case somebody invoked us from a shell script that trapped
- * SIGTERM or so... */
- (void) reset_all_signal_handlers();
- (void) reset_signal_mask();
-
- /* Check whether our parent died before we were able
- * to set the death signal and unblock the signals */
- if (getppid() != parent_pid)
- _exit(EXIT_SUCCESS);
-
- /* Don't leak fds to the agent */
- close_all_fds(except, n_except);
-
- stdout_is_tty = isatty(STDOUT_FILENO);
- stderr_is_tty = isatty(STDERR_FILENO);
-
- if (!stdout_is_tty || !stderr_is_tty) {
- int fd;
-
- /* Detach from stdout/stderr. and reopen
- * /dev/tty for them. This is important to
- * ensure that when systemctl is started via
- * popen() or a similar call that expects to
- * read EOF we actually do generate EOF and
- * not delay this indefinitely by because we
- * keep an unused copy of stdin around. */
- fd = open("/dev/tty", O_WRONLY);
- if (fd < 0) {
- log_error_errno(errno, "Failed to open /dev/tty: %m");
- _exit(EXIT_FAILURE);
- }
-
- if (!stdout_is_tty)
- dup2(fd, STDOUT_FILENO);
-
- if (!stderr_is_tty)
- dup2(fd, STDERR_FILENO);
-
- if (fd > 2)
- close(fd);
- }
-
- /* Count arguments */
- va_start(ap, path);
- for (n = 0; va_arg(ap, char*); n++)
- ;
- va_end(ap);
-
- /* Allocate strv */
- l = alloca(sizeof(char *) * (n + 1));
-
- /* Fill in arguments */
- va_start(ap, path);
- for (i = 0; i <= n; i++)
- l[i] = va_arg(ap, char*);
- va_end(ap);
-
- execv(path, l);
- _exit(EXIT_FAILURE);
- }
-
- int setrlimit_closest(int resource, const struct rlimit *rlim) {
- struct rlimit highest, fixed;
-
- assert(rlim);
-
- if (setrlimit(resource, rlim) >= 0)
- return 0;
-
- if (errno != EPERM)
- return -errno;
-
- /* So we failed to set the desired setrlimit, then let's try
- * to get as close as we can */
- assert_se(getrlimit(resource, &highest) == 0);
-
- fixed.rlim_cur = MIN(rlim->rlim_cur, highest.rlim_max);
- fixed.rlim_max = MIN(rlim->rlim_max, highest.rlim_max);
-
- if (setrlimit(resource, &fixed) < 0)
- return -errno;
-
- return 0;
- }
-
- bool http_etag_is_valid(const char *etag) {
- if (isempty(etag))
- return false;
-
- if (!endswith(etag, "\""))
- return false;
-
- if (!startswith(etag, "\"") && !startswith(etag, "W/\""))
- return false;
-
- return true;
- }
-
- bool http_url_is_valid(const char *url) {
- const char *p;
-
- if (isempty(url))
- return false;
-
- p = startswith(url, "http://");
- if (!p)
- p = startswith(url, "https://");
- if (!p)
- return false;
-
- if (isempty(p))
- return false;
-
- return ascii_is_valid(p);
- }
-
- bool documentation_url_is_valid(const char *url) {
- const char *p;
-
- if (isempty(url))
- return false;
-
- if (http_url_is_valid(url))
- return true;
-
- p = startswith(url, "file:/");
- if (!p)
- p = startswith(url, "info:");
- if (!p)
- p = startswith(url, "man:");
-
- if (isempty(p))
- return false;
-
- return ascii_is_valid(p);
- }
-
- bool in_initrd(void) {
- static int saved = -1;
- struct statfs s;
-
- if (saved >= 0)
- return saved;
-
- /* We make two checks here:
- *
- * 1. the flag file /etc/initrd-release must exist
- * 2. the root file system must be a memory file system
- *
- * The second check is extra paranoia, since misdetecting an
- * initrd can have bad bad consequences due the initrd
- * emptying when transititioning to the main systemd.
- */
-
- saved = access("/etc/initrd-release", F_OK) >= 0 &&
- statfs("/", &s) >= 0 &&
- is_temporary_fs(&s);
-
- return saved;
- }
-
- int get_home_dir(char **_h) {
- struct passwd *p;
- const char *e;
- char *h;
- uid_t u;
-
- assert(_h);
-
- /* Take the user specified one */
- e = secure_getenv("HOME");
- if (e && path_is_absolute(e)) {
- h = strdup(e);
- if (!h)
- return -ENOMEM;
-
- *_h = h;
- return 0;
- }
-
- /* Hardcode home directory for root to avoid NSS */
- u = getuid();
- if (u == 0) {
- h = strdup("/root");
- if (!h)
- return -ENOMEM;
-
- *_h = h;
- return 0;
- }
-
- /* Check the database... */
- errno = 0;
- p = getpwuid(u);
- if (!p)
- return errno > 0 ? -errno : -ESRCH;
-
- if (!path_is_absolute(p->pw_dir))
- return -EINVAL;
-
- h = strdup(p->pw_dir);
- if (!h)
- return -ENOMEM;
-
- *_h = h;
- return 0;
- }
-
- int get_shell(char **_s) {
- struct passwd *p;
- const char *e;
- char *s;
- uid_t u;
-
- assert(_s);
-
- /* Take the user specified one */
- e = getenv("SHELL");
- if (e) {
- s = strdup(e);
- if (!s)
- return -ENOMEM;
-
- *_s = s;
- return 0;
- }
-
- /* Hardcode home directory for root to avoid NSS */
- u = getuid();
- if (u == 0) {
- s = strdup("/bin/sh");
- if (!s)
- return -ENOMEM;
-
- *_s = s;
- return 0;
- }
-
- /* Check the database... */
- errno = 0;
- p = getpwuid(u);
- if (!p)
- return errno > 0 ? -errno : -ESRCH;
-
- if (!path_is_absolute(p->pw_shell))
- return -EINVAL;
-
- s = strdup(p->pw_shell);
- if (!s)
- return -ENOMEM;
-
- *_s = s;
- return 0;
- }
- #endif /* NM_IGNORED */
-
- bool filename_is_valid(const char *p) {
-
- if (isempty(p))
- return false;
-
- if (strchr(p, '/'))
- return false;
-
- if (streq(p, "."))
- return false;
-
- if (streq(p, ".."))
- return false;
-
- if (strlen(p) > FILENAME_MAX)
- return false;
-
- return true;
- }
-
- #if 0 /* NM_IGNORED */
- bool string_is_safe(const char *p) {
- const char *t;
-
- if (!p)
- return false;
-
- for (t = p; *t; t++) {
- if (*t > 0 && *t < ' ')
- return false;
-
- if (strchr("\\\"\'\x7f", *t))
- return false;
- }
-
- return true;
- }
- #endif /* NM_IGNORED */
-
- /**
- * Check if a string contains control characters. If 'ok' is non-NULL
- * it may be a string containing additional CCs to be considered OK.
- */
- bool string_has_cc(const char *p, const char *ok) {
- const char *t;
-
- assert(p);
-
- for (t = p; *t; t++) {
- if (ok && strchr(ok, *t))
- continue;
-
- if (*t > 0 && *t < ' ')
- return true;
-
- if (*t == 127)
- return true;
- }
-
- return false;
- }
-
- #if 0 /* NM_IGNORED */
- bool path_is_safe(const char *p) {
-
- if (isempty(p))
- return false;
-
- if (streq(p, "..") || startswith(p, "../") || endswith(p, "/..") || strstr(p, "/../"))
- return false;
-
- if (strlen(p)+1 > PATH_MAX)
- return false;
-
- /* The following two checks are not really dangerous, but hey, they still are confusing */
- if (streq(p, ".") || startswith(p, "./") || endswith(p, "/.") || strstr(p, "/./"))
- return false;
-
- if (strstr(p, "//"))
- return false;
-
- return true;
- }
-
- /* hey glibc, APIs with callbacks without a user pointer are so useless */
- void *xbsearch_r(const void *key, const void *base, size_t nmemb, size_t size,
- int (*compar) (const void *, const void *, void *), void *arg) {
- size_t l, u, idx;
- const void *p;
- int comparison;
-
- l = 0;
- u = nmemb;
- while (l < u) {
- idx = (l + u) / 2;
- p = (void *)(((const char *) base) + (idx * size));
- comparison = compar(key, p, arg);
- if (comparison < 0)
- u = idx;
- else if (comparison > 0)
- l = idx + 1;
- else
- return (void *)p;
- }
- return NULL;
- }
-
- void init_gettext(void) {
- setlocale(LC_ALL, "");
- textdomain(GETTEXT_PACKAGE);
- }
-
- bool is_locale_utf8(void) {
- const char *set;
- static int cached_answer = -1;
-
- if (cached_answer >= 0)
- goto out;
-
- if (!setlocale(LC_ALL, "")) {
- cached_answer = true;
- goto out;
- }
-
- set = nl_langinfo(CODESET);
- if (!set) {
- cached_answer = true;
- goto out;
- }
-
- if (streq(set, "UTF-8")) {
- cached_answer = true;
- goto out;
- }
-
- /* For LC_CTYPE=="C" return true, because CTYPE is effectly
- * unset and everything can do to UTF-8 nowadays. */
- set = setlocale(LC_CTYPE, NULL);
- if (!set) {
- cached_answer = true;
- goto out;
- }
-
- /* Check result, but ignore the result if C was set
- * explicitly. */
- cached_answer =
- STR_IN_SET(set, "C", "POSIX") &&
- !getenv("LC_ALL") &&
- !getenv("LC_CTYPE") &&
- !getenv("LANG");
-
- out:
- return (bool) cached_answer;
- }
-
- const char *draw_special_char(DrawSpecialChar ch) {
- static const char *draw_table[2][_DRAW_SPECIAL_CHAR_MAX] = {
-
- /* UTF-8 */ {
- [DRAW_TREE_VERTICAL] = "\342\224\202 ", /* │ */
- [DRAW_TREE_BRANCH] = "\342\224\234\342\224\200", /* ├─ */
- [DRAW_TREE_RIGHT] = "\342\224\224\342\224\200", /* └─ */
- [DRAW_TREE_SPACE] = " ", /* */
- [DRAW_TRIANGULAR_BULLET] = "\342\200\243", /* ‣ */
- [DRAW_BLACK_CIRCLE] = "\342\227\217", /* ● */
- [DRAW_ARROW] = "\342\206\222", /* → */
- [DRAW_DASH] = "\342\200\223", /* – */
- },
-
- /* ASCII fallback */ {
- [DRAW_TREE_VERTICAL] = "| ",
- [DRAW_TREE_BRANCH] = "|-",
- [DRAW_TREE_RIGHT] = "`-",
- [DRAW_TREE_SPACE] = " ",
- [DRAW_TRIANGULAR_BULLET] = ">",
- [DRAW_BLACK_CIRCLE] = "*",
- [DRAW_ARROW] = "->",
- [DRAW_DASH] = "-",
- }
- };
-
- return draw_table[!is_locale_utf8()][ch];
- }
-
- char *strreplace(const char *text, const char *old_string, const char *new_string) {
- const char *f;
- char *t, *r;
- size_t l, old_len, new_len;
-
- assert(text);
- assert(old_string);
- assert(new_string);
-
- old_len = strlen(old_string);
- new_len = strlen(new_string);
-
- l = strlen(text);
- r = new(char, l+1);
- if (!r)
- return NULL;
-
- f = text;
- t = r;
- while (*f) {
- char *a;
- size_t d, nl;
-
- if (!startswith(f, old_string)) {
- *(t++) = *(f++);
- continue;
- }
-
- d = t - r;
- nl = l - old_len + new_len;
- a = realloc(r, nl + 1);
- if (!a)
- goto oom;
-
- l = nl;
- r = a;
- t = r + d;
-
- t = stpcpy(t, new_string);
- f += old_len;
- }
-
- *t = 0;
- return r;
-
- oom:
- free(r);
- return NULL;
- }
-
- char *strip_tab_ansi(char **ibuf, size_t *_isz) {
- const char *i, *begin = NULL;
- enum {
- STATE_OTHER,
- STATE_ESCAPE,
- STATE_BRACKET
- } state = STATE_OTHER;
- char *obuf = NULL;
- size_t osz = 0, isz;
- FILE *f;
-
- assert(ibuf);
- assert(*ibuf);
-
- /* Strips ANSI color and replaces TABs by 8 spaces */
-
- isz = _isz ? *_isz : strlen(*ibuf);
-
- f = open_memstream(&obuf, &osz);
- if (!f)
- return NULL;
-
- for (i = *ibuf; i < *ibuf + isz + 1; i++) {
-
- switch (state) {
-
- case STATE_OTHER:
- if (i >= *ibuf + isz) /* EOT */
- break;
- else if (*i == '\x1B')
- state = STATE_ESCAPE;
- else if (*i == '\t')
- fputs(" ", f);
- else
- fputc(*i, f);
- break;
-
- case STATE_ESCAPE:
- if (i >= *ibuf + isz) { /* EOT */
- fputc('\x1B', f);
- break;
- } else if (*i == '[') {
- state = STATE_BRACKET;
- begin = i + 1;
- } else {
- fputc('\x1B', f);
- fputc(*i, f);
- state = STATE_OTHER;
- }
-
- break;
-
- case STATE_BRACKET:
-
- if (i >= *ibuf + isz || /* EOT */
- (!(*i >= '0' && *i <= '9') && *i != ';' && *i != 'm')) {
- fputc('\x1B', f);
- fputc('[', f);
- state = STATE_OTHER;
- i = begin-1;
- } else if (*i == 'm')
- state = STATE_OTHER;
- break;
- }
- }
-
- if (ferror(f)) {
- fclose(f);
- free(obuf);
- return NULL;
- }
-
- fclose(f);
-
- free(*ibuf);
- *ibuf = obuf;
-
- if (_isz)
- *_isz = osz;
-
- return obuf;
- }
-
- int on_ac_power(void) {
- bool found_offline = false, found_online = false;
- _cleanup_closedir_ DIR *d = NULL;
-
- d = opendir("/sys/class/power_supply");
- if (!d)
- return errno == ENOENT ? true : -errno;
-
- for (;;) {
- struct dirent *de;
- _cleanup_close_ int fd = -1, device = -1;
- char contents[6];
- ssize_t n;
-
- errno = 0;
- de = readdir(d);
- if (!de && errno != 0)
- return -errno;
-
- if (!de)
- break;
-
- if (hidden_file(de->d_name))
- continue;
-
- device = openat(dirfd(d), de->d_name, O_DIRECTORY|O_RDONLY|O_CLOEXEC|O_NOCTTY);
- if (device < 0) {
- if (errno == ENOENT || errno == ENOTDIR)
- continue;
-
- return -errno;
- }
-
- fd = openat(device, "type", O_RDONLY|O_CLOEXEC|O_NOCTTY);
- if (fd < 0) {
- if (errno == ENOENT)
- continue;
-
- return -errno;
- }
-
- n = read(fd, contents, sizeof(contents));
- if (n < 0)
- return -errno;
-
- if (n != 6 || memcmp(contents, "Mains\n", 6))
- continue;
-
- safe_close(fd);
- fd = openat(device, "online", O_RDONLY|O_CLOEXEC|O_NOCTTY);
- if (fd < 0) {
- if (errno == ENOENT)
- continue;
-
- return -errno;
- }
-
- n = read(fd, contents, sizeof(contents));
- if (n < 0)
- return -errno;
-
- if (n != 2 || contents[1] != '\n')
- return -EIO;
-
- if (contents[0] == '1') {
- found_online = true;
- break;
- } else if (contents[0] == '0')
- found_offline = true;
- else
- return -EIO;
- }
-
- return found_online || !found_offline;
- }
-
- static int search_and_fopen_internal(const char *path, const char *mode, const char *root, char **search, FILE **_f) {
- char **i;
-
- assert(path);
- assert(mode);
- assert(_f);
-
- if (!path_strv_resolve_uniq(search, root))
- return -ENOMEM;
-
- STRV_FOREACH(i, search) {
- _cleanup_free_ char *p = NULL;
- FILE *f;
-
- if (root)
- p = strjoin(root, *i, "/", path, NULL);
- else
- p = strjoin(*i, "/", path, NULL);
- if (!p)
- return -ENOMEM;
-
- f = fopen(p, mode);
- if (f) {
- *_f = f;
- return 0;
- }
-
- if (errno != ENOENT)
- return -errno;
- }
-
- return -ENOENT;
- }
-
- int search_and_fopen(const char *path, const char *mode, const char *root, const char **search, FILE **_f) {
- _cleanup_strv_free_ char **copy = NULL;
-
- assert(path);
- assert(mode);
- assert(_f);
-
- if (path_is_absolute(path)) {
- FILE *f;
-
- f = fopen(path, mode);
- if (f) {
- *_f = f;
- return 0;
- }
-
- return -errno;
- }
-
- copy = strv_copy((char**) search);
- if (!copy)
- return -ENOMEM;
-
- return search_and_fopen_internal(path, mode, root, copy, _f);
- }
-
- int search_and_fopen_nulstr(const char *path, const char *mode, const char *root, const char *search, FILE **_f) {
- _cleanup_strv_free_ char **s = NULL;
-
- if (path_is_absolute(path)) {
- FILE *f;
-
- f = fopen(path, mode);
- if (f) {
- *_f = f;
- return 0;
- }
-
- return -errno;
- }
-
- s = strv_split_nulstr(search);
- if (!s)
- return -ENOMEM;
-
- return search_and_fopen_internal(path, mode, root, s, _f);
- }
-
- char *strextend(char **x, ...) {
- va_list ap;
- size_t f, l;
- char *r, *p;
-
- assert(x);
-
- l = f = *x ? strlen(*x) : 0;
-
- va_start(ap, x);
- for (;;) {
- const char *t;
- size_t n;
-
- t = va_arg(ap, const char *);
- if (!t)
- break;
-
- n = strlen(t);
- if (n > ((size_t) -1) - l) {
- va_end(ap);
- return NULL;
- }
-
- l += n;
- }
- va_end(ap);
-
- r = realloc(*x, l+1);
- if (!r)
- return NULL;
-
- p = r + f;
-
- va_start(ap, x);
- for (;;) {
- const char *t;
-
- t = va_arg(ap, const char *);
- if (!t)
- break;
-
- p = stpcpy(p, t);
- }
- va_end(ap);
-
- *p = 0;
- *x = r;
-
- return r + l;
- }
-
- char *strrep(const char *s, unsigned n) {
- size_t l;
- char *r, *p;
- unsigned i;
-
- assert(s);
-
- l = strlen(s);
- p = r = malloc(l * n + 1);
- if (!r)
- return NULL;
-
- for (i = 0; i < n; i++)
- p = stpcpy(p, s);
-
- *p = 0;
- return r;
- }
- #endif /* NM_IGNORED */
-
- void* greedy_realloc(void **p, size_t *allocated, size_t need, size_t size) {
- size_t a, newalloc;
- void *q;
-
- assert(p);
- assert(allocated);
-
- if (*allocated >= need)
- return *p;
-
- newalloc = MAX(need * 2, 64u / size);
- a = newalloc * size;
-
- /* check for overflows */
- if (a < size * need)
- return NULL;
-
- q = realloc(*p, a);
- if (!q)
- return NULL;
-
- *p = q;
- *allocated = newalloc;
- return q;
- }
-
- void* greedy_realloc0(void **p, size_t *allocated, size_t need, size_t size) {
- size_t prev;
- uint8_t *q;
-
- assert(p);
- assert(allocated);
-
- prev = *allocated;
-
- q = greedy_realloc(p, allocated, need, size);
- if (!q)
- return NULL;
-
- if (*allocated > prev)
- memzero(q + prev * size, (*allocated - prev) * size);
-
- return q;
- }
-
- #if 0 /* NM_IGNORED */
- bool id128_is_valid(const char *s) {
- size_t i, l;
-
- l = strlen(s);
- if (l == 32) {
-
- /* Simple formatted 128bit hex string */
-
- for (i = 0; i < l; i++) {
- char c = s[i];
-
- if (!(c >= '0' && c <= '9') &&
- !(c >= 'a' && c <= 'z') &&
- !(c >= 'A' && c <= 'Z'))
- return false;
- }
-
- } else if (l == 36) {
-
- /* Formatted UUID */
-
- for (i = 0; i < l; i++) {
- char c = s[i];
-
- if ((i == 8 || i == 13 || i == 18 || i == 23)) {
- if (c != '-')
- return false;
- } else {
- if (!(c >= '0' && c <= '9') &&
- !(c >= 'a' && c <= 'z') &&
- !(c >= 'A' && c <= 'Z'))
- return false;
- }
- }
-
- } else
- return false;
-
- return true;
- }
-
- int split_pair(const char *s, const char *sep, char **l, char **r) {
- char *x, *a, *b;
-
- assert(s);
- assert(sep);
- assert(l);
- assert(r);
-
- if (isempty(sep))
- return -EINVAL;
-
- x = strstr(s, sep);
- if (!x)
- return -EINVAL;
-
- a = strndup(s, x - s);
- if (!a)
- return -ENOMEM;
-
- b = strdup(x + strlen(sep));
- if (!b) {
- free(a);
- return -ENOMEM;
- }
-
- *l = a;
- *r = b;
-
- return 0;
- }
-
- int shall_restore_state(void) {
- _cleanup_free_ char *value = NULL;
- int r;
-
- r = get_proc_cmdline_key("systemd.restore_state=", &value);
- if (r < 0)
- return r;
- if (r == 0)
- return true;
-
- return parse_boolean(value) != 0;
- }
-
- int proc_cmdline(char **ret) {
- assert(ret);
-
- if (detect_container() > 0)
- return get_process_cmdline(1, 0, false, ret);
- else
- return read_one_line_file("/proc/cmdline", ret);
- }
-
- int parse_proc_cmdline(int (*parse_item)(const char *key, const char *value)) {
- _cleanup_free_ char *line = NULL;
- const char *p;
- int r;
-
- assert(parse_item);
-
- r = proc_cmdline(&line);
- if (r < 0)
- return r;
-
- p = line;
- for (;;) {
- _cleanup_free_ char *word = NULL;
- char *value = NULL;
-
- r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_RELAX);
- if (r < 0)
- return r;
- if (r == 0)
- break;
-
- /* Filter out arguments that are intended only for the
- * initrd */
- if (!in_initrd() && startswith(word, "rd."))
- continue;
-
- value = strchr(word, '=');
- if (value)
- *(value++) = 0;
-
- r = parse_item(word, value);
- if (r < 0)
- return r;
- }
-
- return 0;
- }
-
- int get_proc_cmdline_key(const char *key, char **value) {
- _cleanup_free_ char *line = NULL, *ret = NULL;
- bool found = false;
- const char *p;
- int r;
-
- assert(key);
-
- r = proc_cmdline(&line);
- if (r < 0)
- return r;
-
- p = line;
- for (;;) {
- _cleanup_free_ char *word = NULL;
- const char *e;
-
- r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_RELAX);
- if (r < 0)
- return r;
- if (r == 0)
- break;
-
- /* Filter out arguments that are intended only for the
- * initrd */
- if (!in_initrd() && startswith(word, "rd."))
- continue;
-
- if (value) {
- e = startswith(word, key);
- if (!e)
- continue;
-
- r = free_and_strdup(&ret, e);
- if (r < 0)
- return r;
-
- found = true;
- } else {
- if (streq(word, key))
- found = true;
- }
- }
-
- if (value) {
- *value = ret;
- ret = NULL;
- }
-
- return found;
-
- }
-
- int container_get_leader(const char *machine, pid_t *pid) {
- _cleanup_free_ char *s = NULL, *class = NULL;
- const char *p;
- pid_t leader;
- int r;
-
- assert(machine);
- assert(pid);
-
- if (!machine_name_is_valid(machine))
- return -EINVAL;
-
- p = strjoina("/run/systemd/machines/", machine);
- r = parse_env_file(p, NEWLINE, "LEADER", &s, "CLASS", &class, NULL);
- if (r == -ENOENT)
- return -EHOSTDOWN;
- if (r < 0)
- return r;
- if (!s)
- return -EIO;
-
- if (!streq_ptr(class, "container"))
- return -EIO;
-
- r = parse_pid(s, &leader);
- if (r < 0)
- return r;
- if (leader <= 1)
- return -EIO;
-
- *pid = leader;
- return 0;
- }
-
- int namespace_open(pid_t pid, int *pidns_fd, int *mntns_fd, int *netns_fd, int *userns_fd, int *root_fd) {
- _cleanup_close_ int pidnsfd = -1, mntnsfd = -1, netnsfd = -1, usernsfd = -1;
- int rfd = -1;
-
- assert(pid >= 0);
-
- if (mntns_fd) {
- const char *mntns;
-
- mntns = procfs_file_alloca(pid, "ns/mnt");
- mntnsfd = open(mntns, O_RDONLY|O_NOCTTY|O_CLOEXEC);
- if (mntnsfd < 0)
- return -errno;
- }
-
- if (pidns_fd) {
- const char *pidns;
-
- pidns = procfs_file_alloca(pid, "ns/pid");
- pidnsfd = open(pidns, O_RDONLY|O_NOCTTY|O_CLOEXEC);
- if (pidnsfd < 0)
- return -errno;
- }
-
- if (netns_fd) {
- const char *netns;
-
- netns = procfs_file_alloca(pid, "ns/net");
- netnsfd = open(netns, O_RDONLY|O_NOCTTY|O_CLOEXEC);
- if (netnsfd < 0)
- return -errno;
- }
-
- if (userns_fd) {
- const char *userns;
-
- userns = procfs_file_alloca(pid, "ns/user");
- usernsfd = open(userns, O_RDONLY|O_NOCTTY|O_CLOEXEC);
- if (usernsfd < 0 && errno != ENOENT)
- return -errno;
- }
-
- if (root_fd) {
- const char *root;
-
- root = procfs_file_alloca(pid, "root");
- rfd = open(root, O_RDONLY|O_NOCTTY|O_CLOEXEC|O_DIRECTORY);
- if (rfd < 0)
- return -errno;
- }
-
- if (pidns_fd)
- *pidns_fd = pidnsfd;
-
- if (mntns_fd)
- *mntns_fd = mntnsfd;
-
- if (netns_fd)
- *netns_fd = netnsfd;
-
- if (userns_fd)
- *userns_fd = usernsfd;
-
- if (root_fd)
- *root_fd = rfd;
-
- pidnsfd = mntnsfd = netnsfd = usernsfd = -1;
-
- return 0;
- }
-
- int namespace_enter(int pidns_fd, int mntns_fd, int netns_fd, int userns_fd, int root_fd) {
- if (userns_fd >= 0) {
- /* Can't setns to your own userns, since then you could
- * escalate from non-root to root in your own namespace, so
- * check if namespaces equal before attempting to enter. */
- _cleanup_free_ char *userns_fd_path = NULL;
- int r;
- if (asprintf(&userns_fd_path, "/proc/self/fd/%d", userns_fd) < 0)
- return -ENOMEM;
-
- r = files_same(userns_fd_path, "/proc/self/ns/user");
- if (r < 0)
- return r;
- if (r)
- userns_fd = -1;
- }
-
- if (pidns_fd >= 0)
- if (setns(pidns_fd, CLONE_NEWPID) < 0)
- return -errno;
-
- if (mntns_fd >= 0)
- if (setns(mntns_fd, CLONE_NEWNS) < 0)
- return -errno;
-
- if (netns_fd >= 0)
- if (setns(netns_fd, CLONE_NEWNET) < 0)
- return -errno;
-
- if (userns_fd >= 0)
- if (setns(userns_fd, CLONE_NEWUSER) < 0)
- return -errno;
-
- if (root_fd >= 0) {
- if (fchdir(root_fd) < 0)
- return -errno;
-
- if (chroot(".") < 0)
- return -errno;
- }
-
- return reset_uid_gid();
- }
-
- int getpeercred(int fd, struct ucred *ucred) {
- socklen_t n = sizeof(struct ucred);
- struct ucred u;
- int r;
-
- assert(fd >= 0);
- assert(ucred);
-
- r = getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &u, &n);
- if (r < 0)
- return -errno;
-
- if (n != sizeof(struct ucred))
- return -EIO;
-
- /* Check if the data is actually useful and not suppressed due
- * to namespacing issues */
- if (u.pid <= 0)
- return -ENODATA;
- if (u.uid == UID_INVALID)
- return -ENODATA;
- if (u.gid == GID_INVALID)
- return -ENODATA;
-
- *ucred = u;
- return 0;
- }
-
- int getpeersec(int fd, char **ret) {
- socklen_t n = 64;
- char *s;
- int r;
-
- assert(fd >= 0);
- assert(ret);
-
- s = new0(char, n);
- if (!s)
- return -ENOMEM;
-
- r = getsockopt(fd, SOL_SOCKET, SO_PEERSEC, s, &n);
- if (r < 0) {
- free(s);
-
- if (errno != ERANGE)
- return -errno;
-
- s = new0(char, n);
- if (!s)
- return -ENOMEM;
-
- r = getsockopt(fd, SOL_SOCKET, SO_PEERSEC, s, &n);
- if (r < 0) {
- free(s);
- return -errno;
- }
- }
-
- if (isempty(s)) {
- free(s);
- return -EOPNOTSUPP;
- }
-
- *ret = s;
- return 0;
- }
- #endif /* NM_IGNORED */
-
- /* This is much like like mkostemp() but is subject to umask(). */
- int mkostemp_safe(char *pattern, int flags) {
- _cleanup_umask_ mode_t u = 0;
- int fd;
-
- assert(pattern);
-
- u = umask(077);
-
- fd = mkostemp(pattern, flags);
- if (fd < 0)
- return -errno;
-
- return fd;
- }
-
- #if 0 /* NM_IGNORED */
- int open_tmpfile(const char *path, int flags) {
- char *p;
- int fd;
-
- assert(path);
-
- #ifdef O_TMPFILE
- /* Try O_TMPFILE first, if it is supported */
- fd = open(path, flags|O_TMPFILE|O_EXCL, S_IRUSR|S_IWUSR);
- if (fd >= 0)
- return fd;
- #endif
-
- /* Fall back to unguessable name + unlinking */
- p = strjoina(path, "/systemd-tmp-XXXXXX");
-
- fd = mkostemp_safe(p, flags);
- if (fd < 0)
- return fd;
-
- unlink(p);
- return fd;
- }
-
- int fd_warn_permissions(const char *path, int fd) {
- struct stat st;
-
- if (fstat(fd, &st) < 0)
- return -errno;
-
- if (st.st_mode & 0111)
- log_warning("Configuration file %s is marked executable. Please remove executable permission bits. Proceeding anyway.", path);
-
- if (st.st_mode & 0002)
- log_warning("Configuration file %s is marked world-writable. Please remove world writability permission bits. Proceeding anyway.", path);
-
- if (getpid() == 1 && (st.st_mode & 0044) != 0044)
- log_warning("Configuration file %s is marked world-inaccessible. This has no effect as configuration data is accessible via APIs without restrictions. Proceeding anyway.", path);
-
- return 0;
- }
-
- unsigned long personality_from_string(const char *p) {
-
- /* Parse a personality specifier. We introduce our own
- * identifiers that indicate specific ABIs, rather than just
- * hints regarding the register size, since we want to keep
- * things open for multiple locally supported ABIs for the
- * same register size. We try to reuse the ABI identifiers
- * used by libseccomp. */
-
- #if defined(__x86_64__)
-
- if (streq(p, "x86"))
- return PER_LINUX32;
-
- if (streq(p, "x86-64"))
- return PER_LINUX;
-
- #elif defined(__i386__)
-
- if (streq(p, "x86"))
- return PER_LINUX;
-
- #elif defined(__s390x__)
-
- if (streq(p, "s390"))
- return PER_LINUX32;
-
- if (streq(p, "s390x"))
- return PER_LINUX;
-
- #elif defined(__s390__)
-
- if (streq(p, "s390"))
- return PER_LINUX;
- #endif
-
- return PERSONALITY_INVALID;
- }
-
- const char* personality_to_string(unsigned long p) {
-
- #if defined(__x86_64__)
-
- if (p == PER_LINUX32)
- return "x86";
-
- if (p == PER_LINUX)
- return "x86-64";
-
- #elif defined(__i386__)
-
- if (p == PER_LINUX)
- return "x86";
-
- #elif defined(__s390x__)
-
- if (p == PER_LINUX)
- return "s390x";
-
- if (p == PER_LINUX32)
- return "s390";
-
- #elif defined(__s390__)
-
- if (p == PER_LINUX)
- return "s390";
-
- #endif
-
- return NULL;
- }
-
- uint64_t physical_memory(void) {
- long mem;
-
- /* We return this as uint64_t in case we are running as 32bit
- * process on a 64bit kernel with huge amounts of memory */
-
- mem = sysconf(_SC_PHYS_PAGES);
- assert(mem > 0);
-
- return (uint64_t) mem * (uint64_t) page_size();
- }
-
- void hexdump(FILE *f, const void *p, size_t s) {
- const uint8_t *b = p;
- unsigned n = 0;
-
- assert(s == 0 || b);
-
- while (s > 0) {
- size_t i;
-
- fprintf(f, "%04x ", n);
-
- for (i = 0; i < 16; i++) {
-
- if (i >= s)
- fputs(" ", f);
- else
- fprintf(f, "%02x ", b[i]);
-
- if (i == 7)
- fputc(' ', f);
- }
-
- fputc(' ', f);
-
- for (i = 0; i < 16; i++) {
-
- if (i >= s)
- fputc(' ', f);
- else
- fputc(isprint(b[i]) ? (char) b[i] : '.', f);
- }
-
- fputc('\n', f);
-
- if (s < 16)
- break;
-
- n += 16;
- b += 16;
- s -= 16;
- }
- }
-
- int update_reboot_param_file(const char *param) {
- int r = 0;
-
- if (param) {
- r = write_string_file(REBOOT_PARAM_FILE, param, WRITE_STRING_FILE_CREATE);
- if (r < 0)
- return log_error_errno(r, "Failed to write reboot param to "REBOOT_PARAM_FILE": %m");
- } else
- (void) unlink(REBOOT_PARAM_FILE);
-
- return 0;
- }
-
- int umount_recursive(const char *prefix, int flags) {
- bool again;
- int n = 0, r;
-
- /* Try to umount everything recursively below a
- * directory. Also, take care of stacked mounts, and keep
- * unmounting them until they are gone. */
-
- do {
- _cleanup_fclose_ FILE *proc_self_mountinfo = NULL;
-
- again = false;
- r = 0;
-
- proc_self_mountinfo = fopen("/proc/self/mountinfo", "re");
- if (!proc_self_mountinfo)
- return -errno;
-
- for (;;) {
- _cleanup_free_ char *path = NULL, *p = NULL;
- int k;
-
- k = fscanf(proc_self_mountinfo,
- "%*s " /* (1) mount id */
- "%*s " /* (2) parent id */
- "%*s " /* (3) major:minor */
- "%*s " /* (4) root */
- "%ms " /* (5) mount point */
- "%*s" /* (6) mount options */
- "%*[^-]" /* (7) optional fields */
- "- " /* (8) separator */
- "%*s " /* (9) file system type */
- "%*s" /* (10) mount source */
- "%*s" /* (11) mount options 2 */
- "%*[^\n]", /* some rubbish at the end */
- &path);
- if (k != 1) {
- if (k == EOF)
- break;
-
- continue;
- }
-
- r = cunescape(path, UNESCAPE_RELAX, &p);
- if (r < 0)
- return r;
-
- if (!path_startswith(p, prefix))
- continue;
-
- if (umount2(p, flags) < 0) {
- r = -errno;
- continue;
- }
-
- again = true;
- n++;
-
- break;
- }
-
- } while (again);
-
- return r ? r : n;
- }
-
- static int get_mount_flags(const char *path, unsigned long *flags) {
- struct statvfs buf;
-
- if (statvfs(path, &buf) < 0)
- return -errno;
- *flags = buf.f_flag;
- return 0;
- }
-
- int bind_remount_recursive(const char *prefix, bool ro) {
- _cleanup_set_free_free_ Set *done = NULL;
- _cleanup_free_ char *cleaned = NULL;
- int r;
-
- /* Recursively remount a directory (and all its submounts)
- * read-only or read-write. If the directory is already
- * mounted, we reuse the mount and simply mark it
- * MS_BIND|MS_RDONLY (or remove the MS_RDONLY for read-write
- * operation). If it isn't we first make it one. Afterwards we
- * apply MS_BIND|MS_RDONLY (or remove MS_RDONLY) to all
- * submounts we can access, too. When mounts are stacked on
- * the same mount point we only care for each individual
- * "top-level" mount on each point, as we cannot
- * influence/access the underlying mounts anyway. We do not
- * have any effect on future submounts that might get
- * propagated, they migt be writable. This includes future
- * submounts that have been triggered via autofs. */
-
- cleaned = strdup(prefix);
- if (!cleaned)
- return -ENOMEM;
-
- path_kill_slashes(cleaned);
-
- done = set_new(&string_hash_ops);
- if (!done)
- return -ENOMEM;
-
- for (;;) {
- _cleanup_fclose_ FILE *proc_self_mountinfo = NULL;
- _cleanup_set_free_free_ Set *todo = NULL;
- bool top_autofs = false;
- char *x;
- unsigned long orig_flags;
-
- todo = set_new(&string_hash_ops);
- if (!todo)
- return -ENOMEM;
-
- proc_self_mountinfo = fopen("/proc/self/mountinfo", "re");
- if (!proc_self_mountinfo)
- return -errno;
-
- for (;;) {
- _cleanup_free_ char *path = NULL, *p = NULL, *type = NULL;
- int k;
-
- k = fscanf(proc_self_mountinfo,
- "%*s " /* (1) mount id */
- "%*s " /* (2) parent id */
- "%*s " /* (3) major:minor */
- "%*s " /* (4) root */
- "%ms " /* (5) mount point */
- "%*s" /* (6) mount options (superblock) */
- "%*[^-]" /* (7) optional fields */
- "- " /* (8) separator */
- "%ms " /* (9) file system type */
- "%*s" /* (10) mount source */
- "%*s" /* (11) mount options (bind mount) */
- "%*[^\n]", /* some rubbish at the end */
- &path,
- &type);
- if (k != 2) {
- if (k == EOF)
- break;
-
- continue;
- }
-
- r = cunescape(path, UNESCAPE_RELAX, &p);
- if (r < 0)
- return r;
-
- /* Let's ignore autofs mounts. If they aren't
- * triggered yet, we want to avoid triggering
- * them, as we don't make any guarantees for
- * future submounts anyway. If they are
- * already triggered, then we will find
- * another entry for this. */
- if (streq(type, "autofs")) {
- top_autofs = top_autofs || path_equal(cleaned, p);
- continue;
- }
-
- if (path_startswith(p, cleaned) &&
- !set_contains(done, p)) {
-
- r = set_consume(todo, p);
- p = NULL;
-
- if (r == -EEXIST)
- continue;
- if (r < 0)
- return r;
- }
- }
-
- /* If we have no submounts to process anymore and if
- * the root is either already done, or an autofs, we
- * are done */
- if (set_isempty(todo) &&
- (top_autofs || set_contains(done, cleaned)))
- return 0;
-
- if (!set_contains(done, cleaned) &&
- !set_contains(todo, cleaned)) {
- /* The prefix directory itself is not yet a
- * mount, make it one. */
- if (mount(cleaned, cleaned, NULL, MS_BIND|MS_REC, NULL) < 0)
- return -errno;
-
- orig_flags = 0;
- (void) get_mount_flags(cleaned, &orig_flags);
- orig_flags &= ~MS_RDONLY;
-
- if (mount(NULL, prefix, NULL, orig_flags|MS_BIND|MS_REMOUNT|(ro ? MS_RDONLY : 0), NULL) < 0)
- return -errno;
-
- x = strdup(cleaned);
- if (!x)
- return -ENOMEM;
-
- r = set_consume(done, x);
- if (r < 0)
- return r;
- }
-
- while ((x = set_steal_first(todo))) {
-
- r = set_consume(done, x);
- if (r == -EEXIST || r == 0)
- continue;
- if (r < 0)
- return r;
-
- /* Try to reuse the original flag set, but
- * don't care for errors, in case of
- * obstructed mounts */
- orig_flags = 0;
- (void) get_mount_flags(x, &orig_flags);
- orig_flags &= ~MS_RDONLY;
-
- if (mount(NULL, x, NULL, orig_flags|MS_BIND|MS_REMOUNT|(ro ? MS_RDONLY : 0), NULL) < 0) {
-
- /* Deal with mount points that are
- * obstructed by a later mount */
-
- if (errno != ENOENT)
- return -errno;
- }
-
- }
- }
- }
- #endif /* NM_IGNORED */
-
- int fflush_and_check(FILE *f) {
- assert(f);
-
- errno = 0;
- fflush(f);
-
- if (ferror(f))
- return errno ? -errno : -EIO;
-
- return 0;
- }
-
- int tempfn_xxxxxx(const char *p, const char *extra, char **ret) {
- const char *fn;
- char *t;
-
- assert(p);
- assert(ret);
-
- /*
- * Turns this:
- * /foo/bar/waldo
- *
- * Into this:
- * /foo/bar/.#<extra>waldoXXXXXX
- */
-
- fn = basename(p);
- if (!filename_is_valid(fn))
- return -EINVAL;
-
- if (extra == NULL)
- extra = "";
-
- t = new(char, strlen(p) + 2 + strlen(extra) + 6 + 1);
- if (!t)
- return -ENOMEM;
-
- strcpy(stpcpy(stpcpy(stpcpy(mempcpy(t, p, fn - p), ".#"), extra), fn), "XXXXXX");
-
- *ret = path_kill_slashes(t);
- return 0;
- }
-
- #if 0 /* NM_IGNORED */
- int tempfn_random(const char *p, const char *extra, char **ret) {
- const char *fn;
- char *t, *x;
- uint64_t u;
- unsigned i;
-
- assert(p);
- assert(ret);
-
- /*
- * Turns this:
- * /foo/bar/waldo
- *
- * Into this:
- * /foo/bar/.#<extra>waldobaa2a261115984a9
- */
-
- fn = basename(p);
- if (!filename_is_valid(fn))
- return -EINVAL;
-
- if (!extra)
- extra = "";
-
- t = new(char, strlen(p) + 2 + strlen(extra) + 16 + 1);
- if (!t)
- return -ENOMEM;
-
- x = stpcpy(stpcpy(stpcpy(mempcpy(t, p, fn - p), ".#"), extra), fn);
-
- u = random_u64();
- for (i = 0; i < 16; i++) {
- *(x++) = hexchar(u & 0xF);
- u >>= 4;
- }
-
- *x = 0;
-
- *ret = path_kill_slashes(t);
- return 0;
- }
-
- int tempfn_random_child(const char *p, const char *extra, char **ret) {
- char *t, *x;
- uint64_t u;
- unsigned i;
-
- assert(p);
- assert(ret);
-
- /* Turns this:
- * /foo/bar/waldo
- * Into this:
- * /foo/bar/waldo/.#<extra>3c2b6219aa75d7d0
- */
-
- if (!extra)
- extra = "";
-
- t = new(char, strlen(p) + 3 + strlen(extra) + 16 + 1);
- if (!t)
- return -ENOMEM;
-
- x = stpcpy(stpcpy(stpcpy(t, p), "/.#"), extra);
-
- u = random_u64();
- for (i = 0; i < 16; i++) {
- *(x++) = hexchar(u & 0xF);
- u >>= 4;
- }
-
- *x = 0;
-
- *ret = path_kill_slashes(t);
- return 0;
- }
-
- int take_password_lock(const char *root) {
-
- struct flock flock = {
- .l_type = F_WRLCK,
- .l_whence = SEEK_SET,
- .l_start = 0,
- .l_len = 0,
- };
-
- const char *path;
- int fd, r;
-
- /* This is roughly the same as lckpwdf(), but not as awful. We
- * don't want to use alarm() and signals, hence we implement
- * our own trivial version of this.
- *
- * Note that shadow-utils also takes per-database locks in
- * addition to lckpwdf(). However, we don't given that they
- * are redundant as they they invoke lckpwdf() first and keep
- * it during everything they do. The per-database locks are
- * awfully racy, and thus we just won't do them. */
-
- if (root)
- path = strjoina(root, "/etc/.pwd.lock");
- else
- path = "/etc/.pwd.lock";
-
- fd = open(path, O_WRONLY|O_CREAT|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW, 0600);
- if (fd < 0)
- return -errno;
-
- r = fcntl(fd, F_SETLKW, &flock);
- if (r < 0) {
- safe_close(fd);
- return -errno;
- }
-
- return fd;
- }
-
- int is_symlink(const char *path) {
- struct stat info;
-
- if (lstat(path, &info) < 0)
- return -errno;
-
- return !!S_ISLNK(info.st_mode);
- }
-
- int is_dir(const char* path, bool follow) {
- struct stat st;
- int r;
-
- if (follow)
- r = stat(path, &st);
- else
- r = lstat(path, &st);
- if (r < 0)
- return -errno;
-
- return !!S_ISDIR(st.st_mode);
- }
-
- int is_device_node(const char *path) {
- struct stat info;
-
- if (lstat(path, &info) < 0)
- return -errno;
-
- return !!(S_ISBLK(info.st_mode) || S_ISCHR(info.st_mode));
- }
-
- int extract_first_word(const char **p, char **ret, const char *separators, ExtractFlags flags) {
- _cleanup_free_ char *s = NULL;
- size_t allocated = 0, sz = 0;
- int r;
-
- enum {
- START,
- VALUE,
- VALUE_ESCAPE,
- SINGLE_QUOTE,
- SINGLE_QUOTE_ESCAPE,
- DOUBLE_QUOTE,
- DOUBLE_QUOTE_ESCAPE,
- SEPARATOR,
- } state = START;
-
- assert(p);
- assert(ret);
-
- if (!separators)
- separators = WHITESPACE;
-
- /* Bail early if called after last value or with no input */
- if (!*p)
- goto finish_force_terminate;
-
- /* Parses the first word of a string, and returns it in
- * *ret. Removes all quotes in the process. When parsing fails
- * (because of an uneven number of quotes or similar), leaves
- * the pointer *p at the first invalid character. */
-
- for (;;) {
- char c = **p;
-
- switch (state) {
-
- case START:
- if (flags & EXTRACT_DONT_COALESCE_SEPARATORS)
- if (!GREEDY_REALLOC(s, allocated, sz+1))
- return -ENOMEM;
-
- if (c == 0)
- goto finish_force_terminate;
- else if (strchr(separators, c)) {
- if (flags & EXTRACT_DONT_COALESCE_SEPARATORS) {
- (*p) ++;
- goto finish_force_next;
- }
- break;
- }
-
- /* We found a non-blank character, so we will always
- * want to return a string (even if it is empty),
- * allocate it here. */
- if (!GREEDY_REALLOC(s, allocated, sz+1))
- return -ENOMEM;
-
- state = VALUE;
- /* fallthrough */
-
- case VALUE:
- if (c == 0)
- goto finish_force_terminate;
- else if (c == '\'' && (flags & EXTRACT_QUOTES))
- state = SINGLE_QUOTE;
- else if (c == '\\')
- state = VALUE_ESCAPE;
- else if (c == '\"' && (flags & EXTRACT_QUOTES))
- state = DOUBLE_QUOTE;
- else if (strchr(separators, c)) {
- if (flags & EXTRACT_DONT_COALESCE_SEPARATORS) {
- (*p) ++;
- goto finish_force_next;
- }
- state = SEPARATOR;
- } else {
- if (!GREEDY_REALLOC(s, allocated, sz+2))
- return -ENOMEM;
-
- s[sz++] = c;
- }
-
- break;
-
- case SINGLE_QUOTE:
- if (c == 0) {
- if (flags & EXTRACT_RELAX)
- goto finish_force_terminate;
- return -EINVAL;
- } else if (c == '\'')
- state = VALUE;
- else if (c == '\\')
- state = SINGLE_QUOTE_ESCAPE;
- else {
- if (!GREEDY_REALLOC(s, allocated, sz+2))
- return -ENOMEM;
-
- s[sz++] = c;
- }
-
- break;
-
- case DOUBLE_QUOTE:
- if (c == 0)
- return -EINVAL;
- else if (c == '\"')
- state = VALUE;
- else if (c == '\\')
- state = DOUBLE_QUOTE_ESCAPE;
- else {
- if (!GREEDY_REALLOC(s, allocated, sz+2))
- return -ENOMEM;
-
- s[sz++] = c;
- }
-
- break;
-
- case SINGLE_QUOTE_ESCAPE:
- case DOUBLE_QUOTE_ESCAPE:
- case VALUE_ESCAPE:
- if (!GREEDY_REALLOC(s, allocated, sz+7))
- return -ENOMEM;
-
- if (c == 0) {
- if ((flags & EXTRACT_CUNESCAPE_RELAX) &&
- (state == VALUE_ESCAPE || flags & EXTRACT_RELAX)) {
- /* If we find an unquoted trailing backslash and we're in
- * EXTRACT_CUNESCAPE_RELAX mode, keep it verbatim in the
- * output.
- *
- * Unbalanced quotes will only be allowed in EXTRACT_RELAX
- * mode, EXTRACT_CUNESCAPE_RELAX mode does not allow them.
- */
- s[sz++] = '\\';
- goto finish_force_terminate;
- }
- if (flags & EXTRACT_RELAX)
- goto finish_force_terminate;
- return -EINVAL;
- }
-
- if (flags & EXTRACT_CUNESCAPE) {
- uint32_t u;
-
- r = cunescape_one(*p, (size_t) -1, &c, &u);
- if (r < 0) {
- if (flags & EXTRACT_CUNESCAPE_RELAX) {
- s[sz++] = '\\';
- s[sz++] = c;
- goto end_escape;
- }
- return -EINVAL;
- }
-
- (*p) += r - 1;
-
- if (c != 0)
- s[sz++] = c; /* normal explicit char */
- else
- sz += utf8_encode_unichar(s + sz, u); /* unicode chars we'll encode as utf8 */
- } else
- s[sz++] = c;
-
- end_escape:
- state = (state == SINGLE_QUOTE_ESCAPE) ? SINGLE_QUOTE :
- (state == DOUBLE_QUOTE_ESCAPE) ? DOUBLE_QUOTE :
- VALUE;
- break;
-
- case SEPARATOR:
- if (c == 0)
- goto finish_force_terminate;
- if (!strchr(separators, c))
- goto finish;
- break;
- }
-
- (*p) ++;
- }
-
- finish_force_terminate:
- *p = NULL;
- finish:
- if (!s) {
- *p = NULL;
- *ret = NULL;
- return 0;
- }
-
- finish_force_next:
- s[sz] = 0;
- *ret = s;
- s = NULL;
-
- return 1;
- }
-
- int extract_first_word_and_warn(
- const char **p,
- char **ret,
- const char *separators,
- ExtractFlags flags,
- const char *unit,
- const char *filename,
- unsigned line,
- const char *rvalue) {
-
- /* Try to unquote it, if it fails, warn about it and try again but this
- * time using EXTRACT_CUNESCAPE_RELAX to keep the backslashes verbatim
- * in invalid escape sequences. */
- const char *save;
- int r;
-
- save = *p;
- r = extract_first_word(p, ret, separators, flags);
- if (r < 0 && !(flags & EXTRACT_CUNESCAPE_RELAX)) {
-
- /* Retry it with EXTRACT_CUNESCAPE_RELAX. */
- *p = save;
- r = extract_first_word(p, ret, separators, flags|EXTRACT_CUNESCAPE_RELAX);
- if (r < 0)
- log_syntax(unit, LOG_ERR, filename, line, r, "Unbalanced quoting in command line, ignoring: \"%s\"", rvalue);
- else
- log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid escape sequences in command line: \"%s\"", rvalue);
- }
-
- return r;
- }
-
- int extract_many_words(const char **p, const char *separators, ExtractFlags flags, ...) {
- va_list ap;
- char **l;
- int n = 0, i, c, r;
-
- /* Parses a number of words from a string, stripping any
- * quotes if necessary. */
-
- assert(p);
-
- /* Count how many words are expected */
- va_start(ap, flags);
- for (;;) {
- if (!va_arg(ap, char **))
- break;
- n++;
- }
- va_end(ap);
-
- if (n <= 0)
- return 0;
-
- /* Read all words into a temporary array */
- l = newa0(char*, n);
- for (c = 0; c < n; c++) {
-
- r = extract_first_word(p, &l[c], separators, flags);
- if (r < 0) {
- int j;
-
- for (j = 0; j < c; j++)
- free(l[j]);
-
- return r;
- }
-
- if (r == 0)
- break;
- }
-
- /* If we managed to parse all words, return them in the passed
- * in parameters */
- va_start(ap, flags);
- for (i = 0; i < n; i++) {
- char **v;
-
- v = va_arg(ap, char **);
- assert(v);
-
- *v = l[i];
- }
- va_end(ap);
-
- return c;
- }
-
- int free_and_strdup(char **p, const char *s) {
- char *t;
-
- assert(p);
-
- /* Replaces a string pointer with an strdup()ed new string,
- * possibly freeing the old one. */
-
- if (streq_ptr(*p, s))
- return 0;
-
- if (s) {
- t = strdup(s);
- if (!t)
- return -ENOMEM;
- } else
- t = NULL;
-
- free(*p);
- *p = t;
-
- return 1;
- }
-
- int ptsname_malloc(int fd, char **ret) {
- size_t l = 100;
-
- assert(fd >= 0);
- assert(ret);
-
- for (;;) {
- char *c;
-
- c = new(char, l);
- if (!c)
- return -ENOMEM;
-
- if (ptsname_r(fd, c, l) == 0) {
- *ret = c;
- return 0;
- }
- if (errno != ERANGE) {
- free(c);
- return -errno;
- }
-
- free(c);
- l *= 2;
- }
- }
-
- int openpt_in_namespace(pid_t pid, int flags) {
- _cleanup_close_ int pidnsfd = -1, mntnsfd = -1, usernsfd = -1, rootfd = -1;
- _cleanup_close_pair_ int pair[2] = { -1, -1 };
- siginfo_t si;
- pid_t child;
- int r;
-
- assert(pid > 0);
-
- r = namespace_open(pid, &pidnsfd, &mntnsfd, NULL, &usernsfd, &rootfd);
- if (r < 0)
- return r;
-
- if (socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) < 0)
- return -errno;
-
- child = fork();
- if (child < 0)
- return -errno;
-
- if (child == 0) {
- int master;
-
- pair[0] = safe_close(pair[0]);
-
- r = namespace_enter(pidnsfd, mntnsfd, -1, usernsfd, rootfd);
- if (r < 0)
- _exit(EXIT_FAILURE);
-
- master = posix_openpt(flags);
- if (master < 0)
- _exit(EXIT_FAILURE);
-
- if (unlockpt(master) < 0)
- _exit(EXIT_FAILURE);
-
- if (send_one_fd(pair[1], master, 0) < 0)
- _exit(EXIT_FAILURE);
-
- _exit(EXIT_SUCCESS);
- }
-
- pair[1] = safe_close(pair[1]);
-
- r = wait_for_terminate(child, &si);
- if (r < 0)
- return r;
- if (si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS)
- return -EIO;
-
- return receive_one_fd(pair[0], 0);
- }
-
- ssize_t fgetxattrat_fake(int dirfd, const char *filename, const char *attribute, void *value, size_t size, int flags) {
- char fn[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int) + 1];
- _cleanup_close_ int fd = -1;
- ssize_t l;
-
- /* The kernel doesn't have a fgetxattrat() command, hence let's emulate one */
-
- fd = openat(dirfd, filename, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_PATH|(flags & AT_SYMLINK_NOFOLLOW ? O_NOFOLLOW : 0));
- if (fd < 0)
- return -errno;
-
- xsprintf(fn, "/proc/self/fd/%i", fd);
-
- l = getxattr(fn, attribute, value, size);
- if (l < 0)
- return -errno;
-
- return l;
- }
-
- static int parse_crtime(le64_t le, usec_t *usec) {
- uint64_t u;
-
- assert(usec);
-
- u = le64toh(le);
- if (u == 0 || u == (uint64_t) -1)
- return -EIO;
-
- *usec = (usec_t) u;
- return 0;
- }
-
- int fd_getcrtime(int fd, usec_t *usec) {
- le64_t le;
- ssize_t n;
-
- assert(fd >= 0);
- assert(usec);
-
- /* Until Linux gets a real concept of birthtime/creation time,
- * let's fake one with xattrs */
-
- n = fgetxattr(fd, "user.crtime_usec", &le, sizeof(le));
- if (n < 0)
- return -errno;
- if (n != sizeof(le))
- return -EIO;
-
- return parse_crtime(le, usec);
- }
-
- int fd_getcrtime_at(int dirfd, const char *name, usec_t *usec, int flags) {
- le64_t le;
- ssize_t n;
-
- n = fgetxattrat_fake(dirfd, name, "user.crtime_usec", &le, sizeof(le), flags);
- if (n < 0)
- return -errno;
- if (n != sizeof(le))
- return -EIO;
-
- return parse_crtime(le, usec);
- }
-
- int path_getcrtime(const char *p, usec_t *usec) {
- le64_t le;
- ssize_t n;
-
- assert(p);
- assert(usec);
-
- n = getxattr(p, "user.crtime_usec", &le, sizeof(le));
- if (n < 0)
- return -errno;
- if (n != sizeof(le))
- return -EIO;
-
- return parse_crtime(le, usec);
- }
-
- int fd_setcrtime(int fd, usec_t usec) {
- le64_t le;
-
- assert(fd >= 0);
-
- if (usec <= 0)
- usec = now(CLOCK_REALTIME);
-
- le = htole64((uint64_t) usec);
- if (fsetxattr(fd, "user.crtime_usec", &le, sizeof(le), 0) < 0)
- return -errno;
-
- return 0;
- }
-
- int same_fd(int a, int b) {
- struct stat sta, stb;
- pid_t pid;
- int r, fa, fb;
-
- assert(a >= 0);
- assert(b >= 0);
-
- /* Compares two file descriptors. Note that semantics are
- * quite different depending on whether we have kcmp() or we
- * don't. If we have kcmp() this will only return true for
- * dup()ed file descriptors, but not otherwise. If we don't
- * have kcmp() this will also return true for two fds of the same
- * file, created by separate open() calls. Since we use this
- * call mostly for filtering out duplicates in the fd store
- * this difference hopefully doesn't matter too much. */
-
- if (a == b)
- return true;
-
- /* Try to use kcmp() if we have it. */
- pid = getpid();
- r = kcmp(pid, pid, KCMP_FILE, a, b);
- if (r == 0)
- return true;
- if (r > 0)
- return false;
- if (errno != ENOSYS)
- return -errno;
-
- /* We don't have kcmp(), use fstat() instead. */
- if (fstat(a, &sta) < 0)
- return -errno;
-
- if (fstat(b, &stb) < 0)
- return -errno;
-
- if ((sta.st_mode & S_IFMT) != (stb.st_mode & S_IFMT))
- return false;
-
- /* We consider all device fds different, since two device fds
- * might refer to quite different device contexts even though
- * they share the same inode and backing dev_t. */
-
- if (S_ISCHR(sta.st_mode) || S_ISBLK(sta.st_mode))
- return false;
-
- if (sta.st_dev != stb.st_dev || sta.st_ino != stb.st_ino)
- return false;
-
- /* The fds refer to the same inode on disk, let's also check
- * if they have the same fd flags. This is useful to
- * distinguish the read and write side of a pipe created with
- * pipe(). */
- fa = fcntl(a, F_GETFL);
- if (fa < 0)
- return -errno;
+ int fork_agent(pid_t *pid, const int except[], unsigned n_except, const char *path, ...) {
+ bool stdout_is_tty, stderr_is_tty;
+ pid_t parent_pid, agent_pid;
+ sigset_t ss, saved_ss;
+ unsigned n, i;
+ va_list ap;
+ char **l;
- fb = fcntl(b, F_GETFL);
- if (fb < 0)
- return -errno;
+ assert(pid);
+ assert(path);
- return fa == fb;
- }
+ /* Spawns a temporary TTY agent, making sure it goes away when
+ * we go away */
- int chattr_fd(int fd, unsigned value, unsigned mask) {
- unsigned old_attr, new_attr;
- struct stat st;
+ parent_pid = getpid();
- assert(fd >= 0);
+ /* First we temporarily block all signals, so that the new
+ * child has them blocked initially. This way, we can be sure
+ * that SIGTERMs are not lost we might send to the agent. */
+ assert_se(sigfillset(&ss) >= 0);
+ assert_se(sigprocmask(SIG_SETMASK, &ss, &saved_ss) >= 0);
- if (fstat(fd, &st) < 0)
+ agent_pid = fork();
+ if (agent_pid < 0) {
+ assert_se(sigprocmask(SIG_SETMASK, &saved_ss, NULL) >= 0);
return -errno;
+ }
- /* Explicitly check whether this is a regular file or
- * directory. If it is anything else (such as a device node or
- * fifo), then the ioctl will not hit the file systems but
- * possibly drivers, where the ioctl might have different
- * effects. Notably, DRM is using the same ioctl() number. */
-
- if (!S_ISDIR(st.st_mode) && !S_ISREG(st.st_mode))
- return -ENOTTY;
-
- if (mask == 0)
+ if (agent_pid != 0) {
+ assert_se(sigprocmask(SIG_SETMASK, &saved_ss, NULL) >= 0);
+ *pid = agent_pid;
return 0;
+ }
- if (ioctl(fd, FS_IOC_GETFLAGS, &old_attr) < 0)
- return -errno;
-
- new_attr = (old_attr & ~mask) | (value & mask);
- if (new_attr == old_attr)
- return 0;
+ /* In the child:
+ *
+ * Make sure the agent goes away when the parent dies */
+ if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)
+ _exit(EXIT_FAILURE);
- if (ioctl(fd, FS_IOC_SETFLAGS, &new_attr) < 0)
- return -errno;
+ /* Make sure we actually can kill the agent, if we need to, in
+ * case somebody invoked us from a shell script that trapped
+ * SIGTERM or so... */
+ (void) reset_all_signal_handlers();
+ (void) reset_signal_mask();
- return 1;
- }
+ /* Check whether our parent died before we were able
+ * to set the death signal and unblock the signals */
+ if (getppid() != parent_pid)
+ _exit(EXIT_SUCCESS);
- int chattr_path(const char *p, unsigned value, unsigned mask) {
- _cleanup_close_ int fd = -1;
+ /* Don't leak fds to the agent */
+ close_all_fds(except, n_except);
- assert(p);
+ stdout_is_tty = isatty(STDOUT_FILENO);
+ stderr_is_tty = isatty(STDERR_FILENO);
- if (mask == 0)
- return 0;
+ if (!stdout_is_tty || !stderr_is_tty) {
+ int fd;
- fd = open(p, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW);
- if (fd < 0)
- return -errno;
+ /* Detach from stdout/stderr. and reopen
+ * /dev/tty for them. This is important to
+ * ensure that when systemctl is started via
+ * popen() or a similar call that expects to
+ * read EOF we actually do generate EOF and
+ * not delay this indefinitely by because we
+ * keep an unused copy of stdin around. */
+ fd = open("/dev/tty", O_WRONLY);
+ if (fd < 0) {
+ log_error_errno(errno, "Failed to open /dev/tty: %m");
+ _exit(EXIT_FAILURE);
+ }
- return chattr_fd(fd, value, mask);
- }
+ if (!stdout_is_tty)
+ dup2(fd, STDOUT_FILENO);
- int read_attr_fd(int fd, unsigned *ret) {
- struct stat st;
+ if (!stderr_is_tty)
+ dup2(fd, STDERR_FILENO);
- assert(fd >= 0);
+ if (fd > 2)
+ close(fd);
+ }
- if (fstat(fd, &st) < 0)
- return -errno;
+ /* Count arguments */
+ va_start(ap, path);
+ for (n = 0; va_arg(ap, char*); n++)
+ ;
+ va_end(ap);
- if (!S_ISDIR(st.st_mode) && !S_ISREG(st.st_mode))
- return -ENOTTY;
+ /* Allocate strv */
+ l = alloca(sizeof(char *) * (n + 1));
- if (ioctl(fd, FS_IOC_GETFLAGS, ret) < 0)
- return -errno;
+ /* Fill in arguments */
+ va_start(ap, path);
+ for (i = 0; i <= n; i++)
+ l[i] = va_arg(ap, char*);
+ va_end(ap);
- return 0;
+ execv(path, l);
+ _exit(EXIT_FAILURE);
}
- int read_attr_path(const char *p, unsigned *ret) {
- _cleanup_close_ int fd = -1;
-
- assert(p);
- assert(ret);
-
- fd = open(p, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW);
- if (fd < 0)
- return -errno;
-
- return read_attr_fd(fd, ret);
- }
+ bool in_initrd(void) {
+ static int saved = -1;
+ struct statfs s;
- static size_t nul_length(const uint8_t *p, size_t sz) {
- size_t n = 0;
+ if (saved >= 0)
+ return saved;
- while (sz > 0) {
- if (*p != 0)
- break;
+ /* We make two checks here:
+ *
+ * 1. the flag file /etc/initrd-release must exist
+ * 2. the root file system must be a memory file system
+ *
+ * The second check is extra paranoia, since misdetecting an
+ * initrd can have bad bad consequences due the initrd
+ * emptying when transititioning to the main systemd.
+ */
- n++;
- p++;
- sz--;
- }
+ saved = access("/etc/initrd-release", F_OK) >= 0 &&
+ statfs("/", &s) >= 0 &&
+ is_temporary_fs(&s);
- return n;
+ return saved;
}
- ssize_t sparse_write(int fd, const void *p, size_t sz, size_t run_length) {
- const uint8_t *q, *w, *e;
- ssize_t l;
-
- q = w = p;
- e = q + sz;
- while (q < e) {
- size_t n;
-
- n = nul_length(q, e - q);
-
- /* If there are more than the specified run length of
- * NUL bytes, or if this is the beginning or the end
- * of the buffer, then seek instead of write */
- if ((n > run_length) ||
- (n > 0 && q == p) ||
- (n > 0 && q + n >= e)) {
- if (q > w) {
- l = write(fd, w, q - w);
- if (l < 0)
- return -errno;
- if (l != q -w)
- return -EIO;
- }
-
- if (lseek(fd, n, SEEK_CUR) == (off_t) -1)
- return -errno;
+ /* hey glibc, APIs with callbacks without a user pointer are so useless */
+ void *xbsearch_r(const void *key, const void *base, size_t nmemb, size_t size,
+ int (*compar) (const void *, const void *, void *), void *arg) {
+ size_t l, u, idx;
+ const void *p;
+ int comparison;
- q += n;
- w = q;
- } else if (n > 0)
- q += n;
+ l = 0;
+ u = nmemb;
+ while (l < u) {
+ idx = (l + u) / 2;
+ p = (void *)(((const char *) base) + (idx * size));
+ comparison = compar(key, p, arg);
+ if (comparison < 0)
+ u = idx;
+ else if (comparison > 0)
+ l = idx + 1;
else
- q ++;
- }
-
- if (q > w) {
- l = write(fd, w, q - w);
- if (l < 0)
- return -errno;
- if (l != q - w)
- return -EIO;
+ return (void *)p;
}
-
- return q - (const uint8_t*) p;
- }
-
- void sigkill_wait(pid_t *pid) {
- if (!pid)
- return;
- if (*pid <= 1)
- return;
-
- if (kill(*pid, SIGKILL) > 0)
- (void) wait_for_terminate(*pid, NULL);
+ return NULL;
}
- int syslog_parse_priority(const char **p, int *priority, bool with_facility) {
- int a = 0, b = 0, c = 0;
- int k;
-
- assert(p);
- assert(*p);
- assert(priority);
-
- if ((*p)[0] != '<')
- return 0;
+ int on_ac_power(void) {
+ bool found_offline = false, found_online = false;
+ _cleanup_closedir_ DIR *d = NULL;
- if (!strchr(*p, '>'))
- return 0;
+ d = opendir("/sys/class/power_supply");
+ if (!d)
+ return errno == ENOENT ? true : -errno;
- if ((*p)[2] == '>') {
- c = undecchar((*p)[1]);
- k = 3;
- } else if ((*p)[3] == '>') {
- b = undecchar((*p)[1]);
- c = undecchar((*p)[2]);
- k = 4;
- } else if ((*p)[4] == '>') {
- a = undecchar((*p)[1]);
- b = undecchar((*p)[2]);
- c = undecchar((*p)[3]);
- k = 5;
- } else
- return 0;
+ for (;;) {
+ struct dirent *de;
+ _cleanup_close_ int fd = -1, device = -1;
+ char contents[6];
+ ssize_t n;
- if (a < 0 || b < 0 || c < 0 ||
- (!with_facility && (a || b || c > 7)))
- return 0;
+ errno = 0;
+ de = readdir(d);
+ if (!de && errno != 0)
+ return -errno;
- if (with_facility)
- *priority = a*100 + b*10 + c;
- else
- *priority = (*priority & LOG_FACMASK) | c;
+ if (!de)
+ break;
- *p += k;
- return 1;
- }
- #endif /* NM_IGNORED */
+ if (hidden_file(de->d_name))
+ continue;
- ssize_t string_table_lookup(const char * const *table, size_t len, const char *key) {
- size_t i;
+ device = openat(dirfd(d), de->d_name, O_DIRECTORY|O_RDONLY|O_CLOEXEC|O_NOCTTY);
+ if (device < 0) {
+ if (errno == ENOENT || errno == ENOTDIR)
+ continue;
- if (!key)
- return -1;
+ return -errno;
+ }
- for (i = 0; i < len; ++i)
- if (streq_ptr(table[i], key))
- return (ssize_t) i;
+ fd = openat(device, "type", O_RDONLY|O_CLOEXEC|O_NOCTTY);
+ if (fd < 0) {
+ if (errno == ENOENT)
+ continue;
- return -1;
- }
+ return -errno;
+ }
- #if 0 /* NM_IGNORED */
- void cmsg_close_all(struct msghdr *mh) {
- struct cmsghdr *cmsg;
+ n = read(fd, contents, sizeof(contents));
+ if (n < 0)
+ return -errno;
- assert(mh);
+ if (n != 6 || memcmp(contents, "Mains\n", 6))
+ continue;
- CMSG_FOREACH(cmsg, mh)
- if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS)
- close_many((int*) CMSG_DATA(cmsg), (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int));
- }
+ safe_close(fd);
+ fd = openat(device, "online", O_RDONLY|O_CLOEXEC|O_NOCTTY);
+ if (fd < 0) {
+ if (errno == ENOENT)
+ continue;
- int rename_noreplace(int olddirfd, const char *oldpath, int newdirfd, const char *newpath) {
- struct stat buf;
- int ret;
+ return -errno;
+ }
- ret = renameat2(olddirfd, oldpath, newdirfd, newpath, RENAME_NOREPLACE);
- if (ret >= 0)
- return 0;
+ n = read(fd, contents, sizeof(contents));
+ if (n < 0)
+ return -errno;
- /* renameat2() exists since Linux 3.15, btrfs added support for it later.
- * If it is not implemented, fallback to another method. */
- if (!IN_SET(errno, EINVAL, ENOSYS))
- return -errno;
+ if (n != 2 || contents[1] != '\n')
+ return -EIO;
- /* The link()/unlink() fallback does not work on directories. But
- * renameat() without RENAME_NOREPLACE gives the same semantics on
- * directories, except when newpath is an *empty* directory. This is
- * good enough. */
- ret = fstatat(olddirfd, oldpath, &buf, AT_SYMLINK_NOFOLLOW);
- if (ret >= 0 && S_ISDIR(buf.st_mode)) {
- ret = renameat(olddirfd, oldpath, newdirfd, newpath);
- return ret >= 0 ? 0 : -errno;
+ if (contents[0] == '1') {
+ found_online = true;
+ break;
+ } else if (contents[0] == '0')
+ found_offline = true;
+ else
+ return -EIO;
}
- /* If it is not a directory, use the link()/unlink() fallback. */
- ret = linkat(olddirfd, oldpath, newdirfd, newpath, 0);
- if (ret < 0)
- return -errno;
+ return found_online || !found_offline;
+ }
- ret = unlinkat(olddirfd, oldpath, 0);
- if (ret < 0) {
- /* backup errno before the following unlinkat() alters it */
- ret = errno;
- (void) unlinkat(newdirfd, newpath, 0);
- errno = ret;
- return -errno;
- }
+ bool id128_is_valid(const char *s) {
+ size_t i, l;
- return 0;
- }
- #endif /* NM_IGNORED */
+ l = strlen(s);
+ if (l == 32) {
+
+ /* Simple formatted 128bit hex string */
- static char *strcpy_backslash_escaped(char *t, const char *s, const char *bad) {
- assert(bad);
+ for (i = 0; i < l; i++) {
+ char c = s[i];
- for (; *s; s++) {
- if (*s == '\\' || strchr(bad, *s))
- *(t++) = '\\';
+ if (!(c >= '0' && c <= '9') &&
+ !(c >= 'a' && c <= 'z') &&
+ !(c >= 'A' && c <= 'Z'))
+ return false;
+ }
- *(t++) = *s;
- }
+ } else if (l == 36) {
- return t;
- }
+ /* Formatted UUID */
- char *shell_escape(const char *s, const char *bad) {
- char *r, *t;
+ for (i = 0; i < l; i++) {
+ char c = s[i];
- r = new(char, strlen(s)*2+1);
- if (!r)
- return NULL;
+ if ((i == 8 || i == 13 || i == 18 || i == 23)) {
+ if (c != '-')
+ return false;
+ } else {
+ if (!(c >= '0' && c <= '9') &&
+ !(c >= 'a' && c <= 'z') &&
+ !(c >= 'A' && c <= 'Z'))
+ return false;
+ }
+ }
- t = strcpy_backslash_escaped(r, s, bad);
- *t = 0;
+ } else
+ return false;
- return r;
+ return true;
}
- #if 0 /* NM_IGNORED */
- char *shell_maybe_quote(const char *s) {
+ int container_get_leader(const char *machine, pid_t *pid) {
+ _cleanup_free_ char *s = NULL, *class = NULL;
const char *p;
- char *r, *t;
+ pid_t leader;
+ int r;
- assert(s);
+ assert(machine);
+ assert(pid);
- /* Encloses a string in double quotes if necessary to make it
- * OK as shell string. */
+ if (!machine_name_is_valid(machine))
+ return -EINVAL;
- for (p = s; *p; p++)
- if (*p <= ' ' ||
- *p >= 127 ||
- strchr(SHELL_NEED_QUOTES, *p))
- break;
+ p = strjoina("/run/systemd/machines/", machine);
+ r = parse_env_file(p, NEWLINE, "LEADER", &s, "CLASS", &class, NULL);
+ if (r == -ENOENT)
+ return -EHOSTDOWN;
+ if (r < 0)
+ return r;
+ if (!s)
+ return -EIO;
- if (!*p)
- return strdup(s);
+ if (!streq_ptr(class, "container"))
+ return -EIO;
- r = new(char, 1+strlen(s)*2+1+1);
- if (!r)
- return NULL;
+ r = parse_pid(s, &leader);
+ if (r < 0)
+ return r;
+ if (leader <= 1)
+ return -EIO;
- t = r;
- *(t++) = '"';
- t = mempcpy(t, s, p - s);
+ *pid = leader;
+ return 0;
+ }
- t = strcpy_backslash_escaped(t, p, SHELL_NEED_ESCAPE);
+ int namespace_open(pid_t pid, int *pidns_fd, int *mntns_fd, int *netns_fd, int *userns_fd, int *root_fd) {
+ _cleanup_close_ int pidnsfd = -1, mntnsfd = -1, netnsfd = -1, usernsfd = -1;
+ int rfd = -1;
- *(t++)= '"';
- *t = 0;
+ assert(pid >= 0);
- return r;
- }
+ if (mntns_fd) {
+ const char *mntns;
- int parse_mode(const char *s, mode_t *ret) {
- char *x;
- long l;
+ mntns = procfs_file_alloca(pid, "ns/mnt");
+ mntnsfd = open(mntns, O_RDONLY|O_NOCTTY|O_CLOEXEC);
+ if (mntnsfd < 0)
+ return -errno;
+ }
- assert(s);
- assert(ret);
+ if (pidns_fd) {
+ const char *pidns;
- errno = 0;
- l = strtol(s, &x, 8);
- if (errno != 0)
- return -errno;
+ pidns = procfs_file_alloca(pid, "ns/pid");
+ pidnsfd = open(pidns, O_RDONLY|O_NOCTTY|O_CLOEXEC);
+ if (pidnsfd < 0)
+ return -errno;
+ }
- if (!x || x == s || *x)
- return -EINVAL;
- if (l < 0 || l > 07777)
- return -ERANGE;
+ if (netns_fd) {
+ const char *netns;
- *ret = (mode_t) l;
- return 0;
- }
+ netns = procfs_file_alloca(pid, "ns/net");
+ netnsfd = open(netns, O_RDONLY|O_NOCTTY|O_CLOEXEC);
+ if (netnsfd < 0)
+ return -errno;
+ }
- int mount_move_root(const char *path) {
- assert(path);
+ if (userns_fd) {
+ const char *userns;
- if (chdir(path) < 0)
- return -errno;
+ userns = procfs_file_alloca(pid, "ns/user");
+ usernsfd = open(userns, O_RDONLY|O_NOCTTY|O_CLOEXEC);
+ if (usernsfd < 0 && errno != ENOENT)
+ return -errno;
+ }
- if (mount(path, "/", NULL, MS_MOVE, NULL) < 0)
- return -errno;
+ if (root_fd) {
+ const char *root;
- if (chroot(".") < 0)
- return -errno;
+ root = procfs_file_alloca(pid, "root");
+ rfd = open(root, O_RDONLY|O_NOCTTY|O_CLOEXEC|O_DIRECTORY);
+ if (rfd < 0)
+ return -errno;
+ }
- if (chdir("/") < 0)
- return -errno;
+ if (pidns_fd)
+ *pidns_fd = pidnsfd;
- return 0;
- }
+ if (mntns_fd)
+ *mntns_fd = mntnsfd;
- int reset_uid_gid(void) {
+ if (netns_fd)
+ *netns_fd = netnsfd;
- if (setgroups(0, NULL) < 0)
- return -errno;
+ if (userns_fd)
+ *userns_fd = usernsfd;
- if (setresgid(0, 0, 0) < 0)
- return -errno;
+ if (root_fd)
+ *root_fd = rfd;
- if (setresuid(0, 0, 0) < 0)
- return -errno;
+ pidnsfd = mntnsfd = netnsfd = usernsfd = -1;
return 0;
}
SYSTEMD_FEATURES);
return 0;
}
-
- bool fdname_is_valid(const char *s) {
- const char *p;
-
- /* Validates a name for $LISTEN_FDNAMES. We basically allow
- * everything ASCII that's not a control character. Also, as
- * special exception the ":" character is not allowed, as we
- * use that as field separator in $LISTEN_FDNAMES.
- *
- * Note that the empty string is explicitly allowed
- * here. However, we limit the length of the names to 255
- * characters. */
-
- if (!s)
- return false;
-
- for (p = s; *p; p++) {
- if (*p < ' ')
- return false;
- if (*p >= 127)
- return false;
- if (*p == ':')
- return false;
- }
-
- return p - s < 256;
- }
+#endif /* NM_IGNORED */
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "nm-sd-adapt.h"
+
#include <alloca.h>
- #include <dirent.h>
#include <fcntl.h>
#include <inttypes.h>
#include <limits.h>
#include <time.h>
#include <unistd.h>
+#if 0 /* NM_IGNORED */
#include "formats-util.h"
+#endif /* NM_IGNORED */
#include "macro.h"
+#if 0 /* NM_IGNORED */
#include "missing.h"
+#endif /* NM_IGNORED */
#include "time-util.h"
- /* What is interpreted as whitespace? */
- #define WHITESPACE " \t\n\r"
- #define NEWLINE "\n\r"
- #define QUOTES "\"\'"
- #define COMMENTS "#;"
- #define GLOB_CHARS "*?["
-
- /* What characters are special in the shell? */
- /* must be escaped outside and inside double-quotes */
- #define SHELL_NEED_ESCAPE "\"\\`$"
- /* can be escaped or double-quoted */
- #define SHELL_NEED_QUOTES SHELL_NEED_ESCAPE GLOB_CHARS "'()<>|&;"
-
- #define FORMAT_BYTES_MAX 8
-
size_t page_size(void) _pure_;
#define PAGE_ALIGN(l) ALIGN_TO((l), page_size())
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "nm-sd-adapt.h"
+
#include <netinet/if_ether.h>
- #include "sparse-endian.h"
#include "socket-util.h"
+ #include "sparse-endian.h"
int arp_network_bind_raw_socket(int index, be32_t address, const struct ether_addr *eth_mac);
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include "sd-id128.h"
+#include "nm-sd-adapt.h"
+
+#if 0 /* NM_IGNORED */
#include "libudev.h"
- #include "udev-util.h"
++#endif /* NM_IGNORED */
+ #include "sd-id128.h"
- #include "virt.h"
+ #include "dhcp-identifier.h"
+ #include "dhcp6-protocol.h"
+ #include "network-internal.h"
+ #include "siphash24.h"
#include "sparse-endian.h"
- #include "siphash24.h"
-
- #include "dhcp6-protocol.h"
- #include "dhcp-identifier.h"
- #include "network-internal.h"
++#if 0 /* NM_IGNORED */
+ #include "udev-util.h"
+ #include "virt.h"
+#else /* NM_IGNORED */
+#include <net/if.h>
+#endif /* NM_IGNORED */
#define SYSTEMD_PEN 43793
#define HASH_KEY SD_ID128_MAKE(80,11,8c,c2,fe,4a,03,ee,3e,d6,0c,6f,36,39,14,09)
return 0;
}
-
int dhcp_identifier_set_iaid(int ifindex, uint8_t *mac, size_t mac_len, void *_id) {
+#if 0 /* NM_IGNORED */
/* name is a pointer to memory in the udev_device struct, so must
have the same scope */
_cleanup_udev_device_unref_ struct udev_device *device = NULL;
name = net_get_name(device);
}
}
+#else /* NM_IGNORED */
+ name = if_indextoname(ifindex, name_buf);
+#endif /* NM_IGNORED */
if (name)
- siphash24((uint8_t*)&id, name, strlen(name), HASH_KEY.bytes);
+ id = siphash24(name, strlen(name), HASH_KEY.bytes);
else
/* fall back to MAC address if no predictable name available */
- siphash24((uint8_t*)&id, mac, mac_len, HASH_KEY.bytes);
+ id = siphash24(mac, mac_len, HASH_KEY.bytes);
+
+ id = htole64(id);
/* fold into 32 bits */
unaligned_write_be32(_id, (id & 0xffffffff) ^ (id >> 32));
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "nm-sd-adapt.h"
+
+ #include "sd-id128.h"
+
#include "macro.h"
#include "sparse-endian.h"
#include "unaligned.h"
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <stdint.h>
+#include "nm-sd-adapt.h"
+
#include <linux/if_packet.h>
- #include <net/if_arp.h>
#include <net/ethernet.h>
-
- #include "socket-util.h"
+ #include <net/if_arp.h>
+ #include <stdint.h>
#include "sd-dhcp-client.h"
+
#include "dhcp-protocol.h"
+ #include "socket-util.h"
int dhcp_network_bind_raw_socket(int index, union sockaddr_union *link,
uint32_t xid, const uint8_t *mac_addr,
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "nm-sd-adapt.h"
+
#include <errno.h>
- #include <sys/socket.h>
- #include <string.h>
- #include <linux/if_packet.h>
- #include <linux/if_infiniband.h>
#include <net/ethernet.h>
#include <net/if_arp.h>
#include <stdio.h>
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <stdint.h>
- #include <string.h>
+#include "nm-sd-adapt.h"
+
#include <errno.h>
+ #include <stdint.h>
#include <stdio.h>
+ #include <string.h>
#include "dhcp-internal.h"
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "nm-sd-adapt.h"
+
#include <errno.h>
- #include <string.h>
#include <net/ethernet.h>
#include <net/if_arp.h>
+ #include <string.h>
-
- #include "dhcp-protocol.h"
#include "dhcp-internal.h"
+ #include "dhcp-protocol.h"
#define DHCP_CLIENT_MIN_OPTIONS_SIZE 312
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <netinet/udp.h>
+#include "nm-sd-adapt.h"
+
#include <netinet/ip.h>
+ #include <netinet/udp.h>
#include <stdint.h>
#include "macro.h"
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "nm-sd-adapt.h"
+
#include <errno.h>
- #include <sys/types.h>
- #include <sys/socket.h>
- #include <string.h>
- #include <linux/if_packet.h>
+ #include <netinet/in.h>
+ #include <netinet/ip6.h>
#include <stdio.h>
+ #include <string.h>
+ #include <sys/socket.h>
+ #include <sys/types.h>
#include <unistd.h>
- #include <netinet/ip6.h>
- #include <netinet/icmp6.h>
- #include <netinet/in.h>
-
- #include "socket-util.h"
+ #include <linux/if_packet.h>
#include "dhcp6-internal.h"
#include "dhcp6-protocol.h"
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <netinet/in.h>
+#include "nm-sd-adapt.h"
+
#include <errno.h>
+ #include <netinet/in.h>
#include <string.h>
- #include "sparse-endian.h"
- #include "unaligned.h"
- #include "util.h"
- #include "strv.h"
-
+ #include "alloc-util.h"
#include "dhcp6-internal.h"
#include "dhcp6-protocol.h"
#include "dns-domain.h"
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include "lldp-internal.h"
+#include "nm-sd-adapt.h"
+
#include "sd-lldp.h"
+ #include "alloc-util.h"
+ #include "lldp-internal.h"
+
/* We store maximum 1K chassis entries */
#define LLDP_MIB_MAX_CHASSIS 1024
#pragma once
- #include "log.h"
+#include "nm-sd-adapt.h"
+
+ #include "sd-event.h"
+
#include "list.h"
#include "lldp-tlv.h"
+ #include "log.h"
#include "prioq.h"
- #include "sd-event.h"
typedef struct lldp_neighbour_port lldp_neighbour_port;
typedef struct lldp_chassis lldp_chassis;
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "nm-sd-adapt.h"
+
+ #include "alloc-util.h"
#include "async.h"
- #include "lldp-port.h"
- #include "lldp-network.h"
#include "lldp-internal.h"
+ #include "lldp-network.h"
+ #include "lldp-port.h"
int lldp_port_start(lldp_port *p) {
int r;
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <net/ethernet.h>
+#include "nm-sd-adapt.h"
+
#include <arpa/inet.h>
+ #include <net/ethernet.h>
- #include "macro.h"
+ #include "alloc-util.h"
#include "lldp-tlv.h"
+ #include "macro.h"
int tlv_section_new(tlv_section **ret) {
tlv_section *s;
#pragma once
+#include "nm-sd-adapt.h"
+
#include <net/ethernet.h>
- #include "util.h"
- #include "lldp.h"
- #include "list.h"
-
#include "sd-lldp.h"
- typedef struct tlv_packet tlv_packet;
- typedef struct tlv_section tlv_section;
+ #include "list.h"
+ #include "lldp.h"
+ #include "util.h"
+
+ typedef struct sd_lldp_packet tlv_packet;
+ typedef struct sd_lldp_section tlv_section;
#define LLDP_OUI_LEN 3
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <netinet/ether.h>
- #include <linux/if.h>
+#include "nm-sd-adapt.h"
+
#include <arpa/inet.h>
+ #include <linux/if.h>
+ #include <netinet/ether.h>
+
+ #include "sd-ndisc.h"
- #include "strv.h"
- #include "siphash24.h"
+ #include "alloc-util.h"
+#if 0 /* NM_IGNORED */
+ #include "condition.h"
+ #include "conf-parser.h"
+#endif /* NM_IGNORED */
#include "dhcp-lease-internal.h"
- #if 0 /* NM_IGNORED */
+ #include "hexdecoct.h"
#include "log.h"
+ #include "network-internal.h"
+ #include "parse-util.h"
+ #include "siphash24.h"
+ #include "string-util.h"
+ #include "strv.h"
#include "utf8.h"
- #endif /* NM_IGNORED */
#include "util.h"
- #if 0 /* NM_IGNORED */
- #include "conf-parser.h"
- #include "condition.h"
- #endif /* NM_IGNORED */
- #include "network-internal.h"
- #include "sd-icmp6-nd.h"
+#if 0 /* NM_IGNORED */
const char *net_get_name(struct udev_device *device) {
const char *name, *field;
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "nm-sd-adapt.h"
+
#include <stdbool.h>
- #include "udev.h"
+#if 0 /* NM_IGNORED */
#include "condition.h"
+ #include "udev.h"
bool net_match_config(const struct ether_addr *match_mac,
char * const *match_path,
const char *section, unsigned section_line, const char *lvalue,
int ltype, const char *rvalue, void *data, void *userdata);
- int net_get_unique_predictable_data(struct udev_device *device, uint8_t result[8]);
+ int net_get_unique_predictable_data(struct udev_device *device, uint64_t *result);
const char *net_get_name(struct udev_device *device);
+#endif /* NM_IGNORED */
void serialize_in_addrs(FILE *f, const struct in_addr *addresses, size_t size);
int deserialize_in_addrs(struct in_addr **addresses, const char *string);
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <stdlib.h>
+#include "nm-sd-adapt.h"
+
#include <errno.h>
- #include <string.h>
- #include <stdio.h>
#include <net/ethernet.h>
#include <net/if_arp.h>
- #include <linux/if_infiniband.h>
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <string.h>
#include <sys/ioctl.h>
+ #include <linux/if_infiniband.h>
- #include "util.h"
- #include "random-util.h"
- #include "async.h"
+ #include "sd-dhcp-client.h"
- #include "dhcp-protocol.h"
+ #include "alloc-util.h"
+ #include "async.h"
+ #include "dhcp-identifier.h"
#include "dhcp-internal.h"
#include "dhcp-lease-internal.h"
- #include "dhcp-identifier.h"
- #include "sd-dhcp-client.h"
+ #include "dhcp-protocol.h"
+ #include "dns-domain.h"
+ #include "hostname-util.h"
+ #include "random-util.h"
+ #include "string-util.h"
+ #include "util.h"
#define MAX_CLIENT_ID_LEN (sizeof(uint32_t) + MAX_DUID_LEN) /* Arbitrary limit */
#define MAX_MAC_ADDR_LEN CONST_MAX(INFINIBAND_ALEN, ETH_ALEN)
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <stdlib.h>
+#include "nm-sd-adapt.h"
+
+ #include <arpa/inet.h>
#include <errno.h>
- #include <string.h>
#include <stdio.h>
- #include <arpa/inet.h>
+ #include <stdlib.h>
+ #include <string.h>
+
+ #include "sd-dhcp-lease.h"
+ #include "alloc-util.h"
+ #include "dhcp-lease-internal.h"
+ #include "dhcp-protocol.h"
+ #include "dns-domain.h"
+ #include "fd-util.h"
#include "fileio.h"
- #include "unaligned.h"
- #include "in-addr-util.h"
+ #include "hexdecoct.h"
#include "hostname-util.h"
- #include "dns-domain.h"
+ #include "in-addr-util.h"
#include "network-internal.h"
- #include "dhcp-protocol.h"
- #include "dhcp-lease-internal.h"
- #include "sd-dhcp-lease.h"
+ #include "parse-util.h"
+ #include "string-util.h"
+ #include "unaligned.h"
int sd_dhcp_lease_get_address(sd_dhcp_lease *lease, struct in_addr *addr) {
assert_return(lease, -EINVAL);
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "nm-sd-adapt.h"
+
#include <errno.h>
- #include "strv.h"
- #include "util.h"
-
+ #include "alloc-util.h"
#include "dhcp6-lease-internal.h"
#include "dhcp6-protocol.h"
+ #include "strv.h"
+ #include "util.h"
int dhcp6_lease_clear_timers(DHCP6IA *ia) {
assert_return(ia, -EINVAL);
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <stdlib.h>
+#include "nm-sd-adapt.h"
+
+ #include <arpa/inet.h>
#include <errno.h>
- #include <string.h>
#include <stdio.h>
- #include <arpa/inet.h>
+ #include <stdlib.h>
+ #include <string.h>
+
+ #include "sd-ipv4acd.h"
+ #include "sd-ipv4ll.h"
+ #include "alloc-util.h"
#include "event-util.h"
+ #include "in-addr-util.h"
#include "list.h"
#include "random-util.h"
#include "refcnt.h"
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "nm-sd-adapt.h"
+
#include <arpa/inet.h>
- #include "siphash24.h"
- #include "hashmap.h"
-
- #include "lldp-tlv.h"
- #include "lldp-port.h"
#include "sd-lldp.h"
- #include "prioq.h"
+
+ #include "alloc-util.h"
+ #include "fd-util.h"
+ #include "fileio.h"
+ #include "hashmap.h"
#include "lldp-internal.h"
+ #include "lldp-port.h"
+ #include "lldp-tlv.h"
#include "lldp-util.h"
+ #include "prioq.h"
+ #include "siphash24.h"
+ #include "string-util.h"
typedef enum LLDPAgentRXState {
LLDP_AGENT_RX_WAIT_PORT_OPERATIONAL = 4,
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include "util.h"
+#include "nm-sd-adapt.h"
+
#include "sd-event.h"
+ #include "util.h"
+
DEFINE_TRIVIAL_CLEANUP_FUNC(sd_event*, sd_event_unref);
DEFINE_TRIVIAL_CLEANUP_FUNC(sd_event_source*, sd_event_source_unref);
#include <fcntl.h>
#include <unistd.h>
- #include "util.h"
- #include "macro.h"
#include "sd-id128.h"
+
+ #include "fd-util.h"
+ #include "hexdecoct.h"
+ #include "io-util.h"
+ #include "macro.h"
#include "random-util.h"
+ #include "util.h"
+#if 0 /* NM_IGNORED */
_public_ char *sd_id128_to_string(sd_id128_t id, char s[SD_ID128_STRING_MAX]) {
unsigned n;
return r == 0 && *name == 0;
}
++#endif /* NM_IGNORED */
int dns_name_single_label(const char *name) {
char label[DNS_LABEL_MAX+1];
int dns_name_address(const char *p, int *family, union in_addr_union *a);
int dns_name_root(const char *name);
++#endif /* NM_IGNORED */
++
int dns_name_single_label(const char *name);
- #endif /* NM_IGNORED */
+ int dns_name_to_wire_format(const char *domain, uint8_t *buffer, size_t len);
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <netinet/in.h>
+#include "nm-sd-adapt.h"
+
+ #include <inttypes.h>
#include <net/ethernet.h>
+ #include <netinet/in.h>
+ #include <sys/types.h>
- #include "sd-event.h"
#include "sd-dhcp-lease.h"
+ #include "sd-event.h"
+
+ #include "_sd-common.h"
+
+ _SD_BEGIN_DECLARATIONS;
enum {
SD_DHCP_CLIENT_EVENT_STOP = 0,
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <netinet/in.h>
+#include "nm-sd-adapt.h"
+
+ #include <inttypes.h>
#include <net/ethernet.h>
+ #include <netinet/in.h>
+ #include <sys/types.h>
+
+ #include "_sd-common.h"
+
+ _SD_BEGIN_DECLARATIONS;
typedef struct sd_dhcp_lease sd_dhcp_lease;
struct sd_dhcp_route;
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "nm-sd-adapt.h"
+
+ #include <inttypes.h>
#include <net/ethernet.h>
+ #include <sys/types.h>
+ #include "sd-dhcp6-lease.h"
#include "sd-event.h"
- #include "sd-dhcp6-lease.h"
+ #include "_sd-common.h"
+
+ _SD_BEGIN_DECLARATIONS;
enum {
SD_DHCP6_CLIENT_EVENT_STOP = 0,
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "nm-sd-adapt.h"
+
+ #include <inttypes.h>
#include <netinet/in.h>
+ #include "_sd-common.h"
+
+ _SD_BEGIN_DECLARATIONS;
+
typedef struct sd_dhcp6_lease sd_dhcp6_lease;
void sd_dhcp6_lease_reset_address_iter(sd_dhcp6_lease *lease);
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <sys/types.h>
- #include <sys/signalfd.h>
- #include <sys/epoll.h>
+#include "nm-sd-adapt.h"
+
#include <inttypes.h>
#include <signal.h>
+ #include <sys/epoll.h>
+ #include <sys/signalfd.h>
+ #include <sys/types.h>
#include "_sd-common.h"
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <stdbool.h>
- #include <netinet/in.h>
+#include "nm-sd-adapt.h"
+
#include <net/ethernet.h>
+ #include <netinet/in.h>
#include "sd-event.h"
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #include <stdbool.h>
- #include <netinet/in.h>
+#include "nm-sd-adapt.h"
+
#include <net/ethernet.h>
+ #include <netinet/in.h>
#include "sd-event.h"
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
- #pragma once
-
+#include "nm-sd-adapt.h"
+
+ #include <inttypes.h>
+ #include <net/ethernet.h>
+
#include "sd-event.h"
+ #include "_sd-common.h"
+
+ _SD_BEGIN_DECLARATIONS;
+
enum {
SD_LLDP_EVENT_UPDATE_INFO = 0,
};
--- /dev/null
+ /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+ #ifndef foosdndiscfoo
+ #define foosdndiscfoo
+
+ /***
+ This file is part of systemd.
+
+ Copyright (C) 2014 Intel Corporation. All rights reserved.
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
++#include "nm-sd-adapt.h"
++
+ #include <inttypes.h>
+ #include <net/ethernet.h>
+
+ #include "sd-event.h"
+
+ #include "_sd-common.h"
+
+ _SD_BEGIN_DECLARATIONS;
+
+ enum {
+ SD_NDISC_EVENT_STOP = 0,
+ SD_NDISC_EVENT_TIMEOUT = 1,
+ };
+
+ typedef struct sd_ndisc sd_ndisc;
+
+ typedef void(*sd_ndisc_router_callback_t)(sd_ndisc *nd, uint8_t flags, const struct in6_addr *gateway, unsigned lifetime, int pref, void *userdata);
+ typedef void(*sd_ndisc_prefix_onlink_callback_t)(sd_ndisc *nd, const struct in6_addr *prefix, unsigned prefixlen,
+ unsigned lifetime, void *userdata);
+ typedef void(*sd_ndisc_prefix_autonomous_callback_t)(sd_ndisc *nd, const struct in6_addr *prefix, unsigned prefixlen,
+ unsigned lifetime_prefered, unsigned lifetime_valid, void *userdata);
+ typedef void(*sd_ndisc_callback_t)(sd_ndisc *nd, int event, void *userdata);
+
+ int sd_ndisc_set_callback(sd_ndisc *nd,
+ sd_ndisc_router_callback_t rcb,
+ sd_ndisc_prefix_onlink_callback_t plcb,
+ sd_ndisc_prefix_autonomous_callback_t pacb,
+ sd_ndisc_callback_t cb,
+ void *userdata);
+ int sd_ndisc_set_index(sd_ndisc *nd, int interface_index);
+ int sd_ndisc_set_mac(sd_ndisc *nd, const struct ether_addr *mac_addr);
+
+ int sd_ndisc_attach_event(sd_ndisc *nd, sd_event *event, int priority);
+ int sd_ndisc_detach_event(sd_ndisc *nd);
+ sd_event *sd_ndisc_get_event(sd_ndisc *nd);
+
+ sd_ndisc *sd_ndisc_ref(sd_ndisc *nd);
+ sd_ndisc *sd_ndisc_unref(sd_ndisc *nd);
+ int sd_ndisc_new(sd_ndisc **ret);
+
+ int sd_ndisc_get_mtu(sd_ndisc *nd, uint32_t *mtu);
+
+ int sd_ndisc_stop(sd_ndisc *nd);
+ int sd_ndisc_router_discovery_start(sd_ndisc *nd);
+
+ #define SD_NDISC_ADDRESS_FORMAT_STR "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x"
+
+ #define SD_NDISC_ADDRESS_FORMAT_VAL(address) \
+ be16toh((address).s6_addr16[0]), \
+ be16toh((address).s6_addr16[1]), \
+ be16toh((address).s6_addr16[2]), \
+ be16toh((address).s6_addr16[3]), \
+ be16toh((address).s6_addr16[4]), \
+ be16toh((address).s6_addr16[5]), \
+ be16toh((address).s6_addr16[6]), \
+ be16toh((address).s6_addr16[7])
+
+ _SD_END_DECLARATIONS;
+
+ #endif
projects / NetworkManager.git / commitdiff