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-rw-r--r--hurd/lookup-at.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/hurd/lookup-at.c b/hurd/lookup-at.c
index 7f55527d8b..728a970909 100644
--- a/hurd/lookup-at.c
+++ b/hurd/lookup-at.c
@@ -30,8 +30,14 @@ __file_name_lookup_at (int fd, int at_flags,
   error_t err;
   file_t result;
 
+  if ((at_flags & AT_SYMLINK_FOLLOW) && (at_flags & AT_SYMLINK_NOFOLLOW))
+    return (__hurd_fail (EINVAL), MACH_PORT_NULL);
+
   flags |= (at_flags & AT_SYMLINK_NOFOLLOW) ? O_NOLINK : 0;
   at_flags &= ~AT_SYMLINK_NOFOLLOW;
+  if (at_flags & AT_SYMLINK_FOLLOW)
+    flags &= ~O_NOLINK;
+  at_flags &= ~AT_SYMLINK_FOLLOW;
   if (at_flags != 0)
     return (__hurd_fail (EINVAL), MACH_PORT_NULL);