From acd7f7ed437793e7c67ecd869cfac32a87c1ec52 Mon Sep 17 00:00:00 2001 From: Tavian Barnes Date: Sat, 12 Aug 2017 18:12:13 -0400 Subject: Unify broken symlink handling Rather than open-code the fallback logic for broken symlinks everywhere it's needed, introduce a new xfstatat() utility function that performs the fallback automatically. Using xfstatat() consistently fixes a few bugs, including cases where broken symlinks are given as arguments to predicates like -samefile. --- util.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'util.h') diff --git a/util.h b/util.h index b2025e6..6798fb9 100644 --- a/util.h +++ b/util.h @@ -142,6 +142,21 @@ void format_mode(mode_t mode, char str[11]); */ const char *xbasename(const char *path); +/** + * stat() a file, falling back on the link itself for broken symbolic links. + * + * @param fd + * The base directory descriptor. + * @param path + * The path to the file, relative to fd. + * @param buf + * The stat buffer to fill. + * @param flags + * AT_* flags for this call. Will be updated if a fallback happens. + * @return 0 on success, -1 on failure. + */ +int xfstatat(int fd, const char *path, struct stat *buf, int *flags); + /** * Convert a stat() st_mode to a bftw() typeflag. */ -- cgit v1.2.3