fs-util: introduce at_flags_normalize_nofollow() helper

2025-01-22 00:52:34 +01:00
parent eab9b9b4ea
commit 6981203f3a
1 changed files with 9 additions and 0 deletions
@@ -163,3 +163,12 @@ static inline int xopenat_lock(int dir_fd, const char *path, int open_flags, Loc
 int link_fd(int fd, int newdirfd, const char *newpath);

 int linkat_replace(int olddirfd, const char *oldpath, int newdirfd, const char *newpath);
+
+static inline int at_flags_normalize_nofollow(int flags) {
+        if (FLAGS_SET(flags, AT_SYMLINK_FOLLOW)) {
+                assert(!FLAGS_SET(flags, AT_SYMLINK_NOFOLLOW));
+                flags &= ~AT_SYMLINK_FOLLOW;
+        } else
+                flags |= AT_SYMLINK_NOFOLLOW;
+        return flags;
+}