X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fchdir-safer.c;h=7c7b0c1c54a94a9edd246bdb3905d7bd34c040f7;hb=fa1db0dd22768f09a507674a30beb5b8a87bb35f;hp=b3266b51be30592aadca5ca82f78de157032f8fb;hpb=b2e2010c7c902235b5efb5bd3c6529f61b093aa4;p=gnulib.git

diff --git a/lib/chdir-safer.c b/lib/chdir-safer.c
index b3266b51b..7c7b0c1c5 100644
--- a/lib/chdir-safer.c
+++ b/lib/chdir-safer.c
@@ -1,6 +1,6 @@
 /* much like chdir(2), but safer
 
-   Copyright (C) 2005-2006, 2008-2010 Free Software Foundation, Inc.
+   Copyright (C) 2005-2006, 2008-2013 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -34,16 +34,19 @@
 #endif
 
 /* Like chdir, but fail if DIR is a symbolic link to a directory (or
-   similar funny business), or if DIR is not readable.  This avoids a
-   minor race condition between when a directory is created or statted
-   and when the process chdirs into it.  */
+   similar funny business).  This avoids a minor race condition
+   between when a directory is created or statted and when the process
+   chdirs into it.
+
+   On older systems lacking full support for O_SEARCH, this function
+   can also fail if DIR is not readable.  */
 int
 chdir_no_follow (char const *dir)
 {
   int result = 0;
   int saved_errno;
   int fd = open (dir,
-                 O_RDONLY | O_DIRECTORY | O_NOCTTY | O_NOFOLLOW | O_NONBLOCK);
+                 O_SEARCH | O_DIRECTORY | O_NOCTTY | O_NOFOLLOW | O_NONBLOCK);
   if (fd < 0)
     return -1;