patch: don't trash permissions of patched file
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 @@
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 @@
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 @@
}
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 @@
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) {