rm-rf: introduce rm_rf_safe() and rm_rf_safep()

diff --git a/src/shared/rm-rf.h b/src/shared/rm-rf.h
index 6e52bbb41d4c198dc526b917ded2ff9a44b75912..2e107da0e1a47031a92ed55eb288f3ca225ffe9d 100644 (file)
--- a/src/shared/rm-rf.h
+++ b/src/shared/rm-rf.h
@@ -34,8 +34,20 @@ static inline int rm_rf(const char *path, RemoveFlags flags) {
         return rm_rf_at(AT_FDCWD, path, flags);
 }
 
-/* Useful for usage with _cleanup_(), destroys a directory and frees the pointer */
-static inline char *rm_rf_physical_and_free(char *p) {
+/* Useful for using with _cleanup_(), destroys a directory on a temporary file system. */
+static inline const char* rm_rf_safe(const char *p) {
+        PROTECT_ERRNO;
+
+        if (!p)
+                return NULL;
+
+        (void) rm_rf(p, REMOVE_ROOT|REMOVE_MISSING_OK|REMOVE_CHMOD);
+        return NULL;
+}
+DEFINE_TRIVIAL_CLEANUP_FUNC(const char*, rm_rf_safe);
+
+/* Similar as above, but allow to destroy a directory on a physical file system, and also frees the pointer. */
+static inline char* rm_rf_physical_and_free(char *p) {
         PROTECT_ERRNO;
 
         if (!p)
@@ -46,8 +58,8 @@ static inline char *rm_rf_physical_and_free(char *p) {
 }
 DEFINE_TRIVIAL_CLEANUP_FUNC(char*, rm_rf_physical_and_free);
 
-/* Similar as above, but also has magic btrfs subvolume powers */
-static inline char *rm_rf_subvolume_and_free(char *p) {
+/* Similar as above, but also has magic btrfs subvolume powers. */
+static inline char* rm_rf_subvolume_and_free(char *p) {
         PROTECT_ERRNO;
 
         if (!p)