From: TJ <hacker@iam.tj>
Date: Mon, 17 Oct 2016 00:51:14 +0000 (+0100)
Subject: Fix write length so it includes the updated header (tag) CRC32
X-Git-Tag: v1.4~1
X-Git-Url: https://iam.tj/gitweb/gitweb.cgi?p=firmware_header_edit.git;a=commitdiff_plain;h=09f56812518bd9f7e1443cd1e0dc5aa176e5996f

Fix write length so it includes the updated header (tag) CRC32

Signed-off-by: TJ <hacker@iam.tj>
---

diff --git a/firmware_header_editor.c b/firmware_header_editor.c
index b41f45d..ca0e24b 100644
--- a/firmware_header_editor.c
+++ b/firmware_header_editor.c
@@ -324,8 +324,9 @@ main(int argc, char **argv)
        memcpy(buffer + header_crc_offset, &tmp, sizeof(tmp));
 
        if (!opt_simulate) {
+         ssize_t write_len = header_len > header_crc_offset + sizeof(tmp) ? header_len : header_crc_offset + sizeof(tmp);
          lseek(fd, 0, SEEK_SET);
-         write(fd, buffer, header_len);
+         write(fd, buffer, write_len);
        }
 
        printf( format_spec,