-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
+/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <string.h>
#include <errno.h>
+#include <stdbool.h>
+#include <string.h>
+#include <sys/stat.h>
-#include "util.h"
-#include "path-util.h"
+#include "alloc-util.h"
+#include "fs-util.h"
+#include "macro.h"
#include "mkdir.h"
+#include "path-util.h"
+#include "stat-util.h"
+#include "user-util.h"
-int mkdir_safe_internal(const char *path, mode_t mode, uid_t uid, gid_t gid, mkdir_func_t _mkdir) {
+int mkdir_safe_internal(const char *path, mode_t mode, uid_t uid, gid_t gid, bool follow_symlink, mkdir_func_t _mkdir) {
struct stat st;
+ int r;
- if (_mkdir(path, mode) >= 0)
- if (chmod_and_chown(path, mode, uid, gid) < 0)
- return -errno;
+ if (_mkdir(path, mode) >= 0) {
+ r = chmod_and_chown(path, mode, uid, gid);
+ if (r < 0)
+ return r;
+ }
if (lstat(path, &st) < 0)
return -errno;
+ if (follow_symlink && S_ISLNK(st.st_mode)) {
+ _cleanup_free_ char *p = NULL;
+
+ r = chase_symlinks(path, NULL, CHASE_NONEXISTENT, &p);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return mkdir_safe_internal(p, mode, uid, gid, false, _mkdir);
+
+ if (lstat(p, &st) < 0)
+ return -errno;
+ }
+
if ((st.st_mode & 0007) > (mode & 0007) ||
(st.st_mode & 0070) > (mode & 0070) ||
(st.st_mode & 0700) > (mode & 0700) ||
return 0;
}
-int mkdir_safe(const char *path, mode_t mode, uid_t uid, gid_t gid) {
- return mkdir_safe_internal(path, mode, uid, gid, mkdir);
+int mkdir_safe(const char *path, mode_t mode, uid_t uid, gid_t gid, bool follow_symlink) {
+ return mkdir_safe_internal(path, mode, uid, gid, follow_symlink, mkdir);
}
int mkdir_parents_internal(const char *prefix, const char *path, mode_t mode, mkdir_func_t _mkdir) {