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| author | Denis Vlasenko | 2008-03-18 01:38:04 +0000 |
|---|---|---|
| committer | Denis Vlasenko | 2008-03-18 01:38:04 +0000 |
| commit | 2a7a4513918fef3bbf3d665ea0871dfc555d6692 (patch) | |
| tree | e8eee137cdcc83d1aadcffffe81c7f476117abf9 | |
| parent | d7e6af2dda0abdd7a0411af46314724bd5f88549 (diff) | |
| download | busybox-2a7a4513918fef3bbf3d665ea0871dfc555d6692.zip busybox-2a7a4513918fef3bbf3d665ea0871dfc555d6692.tar.gz | |
patch: don't trash permissions of patched file
| -rw-r--r-- | editors/patch.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/editors/patch.c b/editors/patch.c index ff1a01d..9a678e1 100644 --- a/editors/patch.c +++ b/editors/patch.c @@ -71,12 +71,6 @@ static char *extract_filename(char *line, int patch_level) return xstrdup(filename_start_ptr); } -static int file_doesnt_exist(const char *filename) -{ - struct stat statbuf; - return stat(filename, &statbuf); -} - int patch_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int patch_main(int argc ATTRIBUTE_UNUSED, char **argv) { @@ -84,7 +78,8 @@ int patch_main(int argc ATTRIBUTE_UNUSED, char **argv) char *patch_line; int ret; FILE *patch_file = NULL; - + struct stat saved_stat; + { char *p, *i; ret = getopt32(argv, "p:i:", &p, &i); @@ -134,8 +129,9 @@ int patch_main(int argc ATTRIBUTE_UNUSED, char **argv) } new_filename = extract_filename(patch_line, patch_level); free(patch_line); - - if (file_doesnt_exist(new_filename)) { + + /* Get access rights from the file to be patched, -1 file does not exist */ + if (stat(new_filename, &saved_stat)) { char *line_ptr; /* Create leading directories */ line_ptr = strrchr(new_filename, '/'); @@ -152,9 +148,10 @@ int patch_main(int argc ATTRIBUTE_UNUSED, char **argv) strcat(backup_filename, ".orig"); xrename(new_filename, backup_filename); dst_stream = xfopen(new_filename, "w"); + fchmod(fileno(dst_stream), saved_stat.st_mode); } - if ((backup_filename == NULL) || file_doesnt_exist(original_filename)) { + if ((backup_filename == NULL) || stat(original_filename, &saved_stat)) { src_stream = NULL; } else { if (strcmp(original_filename, new_filename) == 0) { |