diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/linkat.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/linkat.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/linkat.c b/sysdeps/unix/sysv/linux/linkat.c index cfd0e18223..b2b7b0386b 100644 --- a/sysdeps/unix/sysv/linux/linkat.c +++ b/sysdeps/unix/sysv/linux/linkat.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2005, 2006 Free Software Foundation, Inc. +/* Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -66,6 +66,12 @@ linkat (fromfd, from, tofd, to, flags) if (fromfd != AT_FDCWD && from[0] != '/') { size_t filelen = strlen (from); + if (__builtin_expect (filelen == 0, 0)) + { + __set_errno (ENOENT); + return -1; + } + /* Buffer for the path name we are going to use. It consists of - the string /proc/self/fd/ - the file descriptor number |