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Diffstat (limited to 'sysdeps/unix/sysv/linux/fchmodat.c')
-rw-r--r--sysdeps/unix/sysv/linux/fchmodat.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/fchmodat.c b/sysdeps/unix/sysv/linux/fchmodat.c
index 8b420153f1..051691230d 100644
--- a/sysdeps/unix/sysv/linux/fchmodat.c
+++ b/sysdeps/unix/sysv/linux/fchmodat.c
@@ -1,5 +1,5 @@
/* Change the protections of file relative to open directory. Linux version.
- Copyright (C) 2006 Free Software Foundation, Inc.
+ Copyright (C) 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
@@ -71,6 +71,12 @@ fchmodat (fd, file, mode, flag)
if (fd != AT_FDCWD && file[0] != '/')
{
size_t filelen = strlen (file);
+ if (__builtin_expect (filelen == 0, 0))
+ {
+ __set_errno (ENOENT);
+ return -1;
+ }
+
static const char procfd[] = "/proc/self/fd/%d/%s";
/* Buffer for the path name we are going to use. It consists of
- the string /proc/self/fd/