openat: Work around glibc bug with fchownat() and empty file names.

[gnulib.git] / lib / fchownat.c

diff --git a/lib/fchownat.c b/lib/fchownat.c
index 00126ac..55dd937 100644 (file)
--- a/lib/fchownat.c
+++ b/lib/fchownat.c
@@ -88,6 +88,13 @@ rpl_fchownat (int fd, char const *file, uid_t owner, gid_t group, int flag)
   if (flag == AT_SYMLINK_NOFOLLOW)
     return local_lchownat (fd, file, owner, group);
 # endif
+# if FCHOWNAT_EMPTY_FILENAME_BUG
+  if (file[0] == '\0')
+    {
+      errno = ENOENT;
+      return -1;
+    }
+# endif
 # if CHOWN_TRAILING_SLASH_BUG
   {
     size_t len = strlen (file);