--- /dev/null
-FUNC_NAME (const char *key, const char *var, int no_floppy)
+ /* search.c - search devices based on a file or a filesystem label */
+ /*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2005,2007,2008,2009 Free Software Foundation, Inc.
+ *
+ * GRUB 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+ #include <grub/types.h>
+ #include <grub/misc.h>
+ #include <grub/mm.h>
+ #include <grub/err.h>
+ #include <grub/dl.h>
+ #include <grub/device.h>
+ #include <grub/file.h>
+ #include <grub/env.h>
+ #include <grub/command.h>
+ #include <grub/search.h>
+ #include <grub/i18n.h>
+
+ void
- grub_device_iterate (iterate_device);
++FUNC_NAME (const char *key, const char *var, int no_floppy,
++ const char **hints, unsigned nhints)
+ {
+ int count = 0;
+ grub_fs_autoload_hook_t saved_autoload;
+
+ auto int iterate_device (const char *name);
+ int iterate_device (const char *name)
+ {
+ int found = 0;
+
+ /* Skip floppy drives when requested. */
+ if (no_floppy &&
+ name[0] == 'f' && name[1] == 'd' && name[2] >= '0' && name[2] <= '9')
+ return 0;
+
+ #ifdef DO_SEARCH_FILE
+ {
+ char *buf;
+ grub_file_t file;
+
+ buf = grub_xasprintf ("(%s)%s", name, key);
+ if (! buf)
+ return 1;
+
+ grub_file_filter_disable_compression ();
+ file = grub_file_open (buf);
+ if (file)
+ {
+ found = 1;
+ grub_file_close (file);
+ }
+ grub_free (buf);
+ }
+ #else
+ {
+ /* SEARCH_FS_UUID or SEARCH_LABEL */
+ grub_device_t dev;
+ grub_fs_t fs;
+ char *quid;
+
+ dev = grub_device_open (name);
+ if (dev)
+ {
+ fs = grub_fs_probe (dev);
+
+ #ifdef DO_SEARCH_FS_UUID
+ #define compare_fn grub_strcasecmp
+ #define read_fn uuid
+ #else
+ #define compare_fn grub_strcmp
+ #define read_fn label
+ #endif
+
+ if (fs && fs->read_fn)
+ {
+ fs->read_fn (dev, &quid);
+
+ if (grub_errno == GRUB_ERR_NONE && quid)
+ {
+ if (compare_fn (quid, key) == 0)
+ found = 1;
+
+ grub_free (quid);
+ }
+ }
+
+ grub_device_close (dev);
+ }
+ }
+ #endif
+
+ if (found)
+ {
+ count++;
+ if (var)
+ grub_env_set (var, name);
+ else
+ grub_printf (" %s", name);
+ }
+
+ grub_errno = GRUB_ERR_NONE;
+ return (found && var);
+ }
+
++ auto void try (void);
++ void try (void)
++ {
++ unsigned i;
++ for (i = 0; i < nhints; i++)
++ if (iterate_device (hints[i]))
++ return;
++ grub_device_iterate (iterate_device);
++ }
++
+ /* First try without autoloading if we're setting variable. */
+ if (var)
+ {
+ saved_autoload = grub_fs_autoload_hook;
+ grub_fs_autoload_hook = 0;
- grub_device_iterate (iterate_device);
++ try ();
+
+ /* Restore autoload hook. */
+ grub_fs_autoload_hook = saved_autoload;
+
+ /* Retry with autoload if nothing found. */
+ if (grub_errno == GRUB_ERR_NONE && count == 0)
- grub_device_iterate (iterate_device);
++ try ();
+ }
+ else
- FUNC_NAME (args[0], argc == 1 ? 0 : args[1], 0);
++ try ();
+
+ if (grub_errno == GRUB_ERR_NONE && count == 0)
+ grub_error (GRUB_ERR_FILE_NOT_FOUND, "no such device: %s", key);
+ }
+
+ static grub_err_t
+ grub_cmd_do_search (grub_command_t cmd __attribute__ ((unused)), int argc,
+ char **args)
+ {
+ if (argc == 0)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, "no argument specified");
+
- N_("NAME [VARIABLE]"),
++ FUNC_NAME (args[0], argc == 1 ? 0 : args[1], 0, (const char **) (args + 2),
++ argc > 2 ? argc - 2 : 0);
+
+ return grub_errno;
+ }
+
+ static grub_command_t cmd;
+
+ #ifdef DO_SEARCH_FILE
+ GRUB_MOD_INIT(search_fs_file)
+ #elif defined (DO_SEARCH_FS_UUID)
+ GRUB_MOD_INIT(search_fs_uuid)
+ #else
+ GRUB_MOD_INIT(search_label)
+ #endif
+ {
+ cmd =
+ grub_register_command (COMMAND_NAME, grub_cmd_do_search,
++ N_("NAME [VARIABLE] [HINTS]"),
+ HELP_MESSAGE);
+ }
+
+ #ifdef DO_SEARCH_FILE
+ GRUB_MOD_FINI(search_fs_file)
+ #elif defined (DO_SEARCH_FS_UUID)
+ GRUB_MOD_FINI(search_fs_uuid)
+ #else
+ GRUB_MOD_FINI(search_label)
+ #endif
+ {
+ grub_unregister_command (cmd);
+ }
--- /dev/null
- grub_search_label (args[0], var, state[SEARCH_NO_FLOPPY].set);
+ /* search.c - search devices based on a file or a filesystem label */
+ /*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2005,2007,2008,2009 Free Software Foundation, Inc.
+ *
+ * GRUB 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+ #include <grub/types.h>
+ #include <grub/misc.h>
+ #include <grub/mm.h>
+ #include <grub/err.h>
+ #include <grub/dl.h>
+ #include <grub/env.h>
+ #include <grub/extcmd.h>
+ #include <grub/search.h>
+ #include <grub/i18n.h>
+
+ static const struct grub_arg_option options[] =
+ {
+ {"file", 'f', 0, N_("Search devices by a file."), 0, 0},
+ {"label", 'l', 0, N_("Search devices by a filesystem label."),
+ 0, 0},
+ {"fs-uuid", 'u', 0, N_("Search devices by a filesystem UUID."),
+ 0, 0},
+ {"set", 's', GRUB_ARG_OPTION_OPTIONAL,
+ N_("Set a variable to the first device found."), "VAR", ARG_TYPE_STRING},
+ {"no-floppy", 'n', 0, N_("Do not probe any floppy drive."), 0, 0},
+ {0, 0, 0, 0, 0, 0}
+ };
+
+ enum options
+ {
+ SEARCH_FILE,
+ SEARCH_LABEL,
+ SEARCH_FS_UUID,
+ SEARCH_SET,
+ SEARCH_NO_FLOPPY,
+ };
+
+ static grub_err_t
+ grub_cmd_search (grub_extcmd_context_t ctxt, int argc, char **args)
+ {
+ struct grub_arg_list *state = ctxt->state;
+ const char *var = 0;
+
+ if (argc == 0)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, "no argument specified");
+
+ if (state[SEARCH_SET].set)
+ var = state[SEARCH_SET].arg ? state[SEARCH_SET].arg : "root";
+
+ if (state[SEARCH_LABEL].set)
- grub_search_fs_uuid (args[0], var, state[SEARCH_NO_FLOPPY].set);
++ grub_search_label (args[0], var, state[SEARCH_NO_FLOPPY].set,
++ (const char **) (args + 1), argc - 1);
+ else if (state[SEARCH_FS_UUID].set)
- grub_search_fs_file (args[0], var, state[SEARCH_NO_FLOPPY].set);
++ grub_search_fs_uuid (args[0], var, state[SEARCH_NO_FLOPPY].set,
++ (const char **) (args + 1), argc - 1);
+ else if (state[SEARCH_FILE].set)
- N_("search [-f|-l|-u|-s|-n] NAME"),
++ grub_search_fs_file (args[0], var, state[SEARCH_NO_FLOPPY].set,
++ (const char **) (args + 1), argc - 1);
+ else
+ return grub_error (GRUB_ERR_INVALID_COMMAND, "unspecified search type");
+
+ return grub_errno;
+ }
+
+ static grub_extcmd_t cmd;
+
+ GRUB_MOD_INIT(search)
+ {
+ cmd =
+ grub_register_extcmd ("search", grub_cmd_search,
+ GRUB_COMMAND_FLAG_BOTH,
++ N_("[-f|-l|-u|-s|-n] NAME [HINTS]"),
+ N_("Search devices by file, filesystem label"
+ " or filesystem UUID."
+ " If --set is specified, the first device found is"
+ " set to a variable. If no variable name is"
+ " specified, \"root\" is used."),
+ options);
+ }
+
+ GRUB_MOD_FINI(search)
+ {
+ grub_unregister_extcmd (cmd);
+ }
projects / grub.git / commitdiff