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[gnulib.git]
/
lib
/
chdir-safer.c
diff --git
a/lib/chdir-safer.c
b/lib/chdir-safer.c
index
f7d657c
..
a6f77b0
100644
(file)
--- a/
lib/chdir-safer.c
+++ b/
lib/chdir-safer.c
@@
-1,6
+1,6
@@
/* much like chdir(2), but safer
/* much like chdir(2), but safer
- Copyright (C) 2005
, 2006
Free Software Foundation, Inc.
+ Copyright (C) 2005
-2006, 2008-2009
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
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
@@
-29,6
+29,10
@@
#include <sys/stat.h>
#include "same-inode.h"
#include <sys/stat.h>
#include "same-inode.h"
+#ifndef HAVE_READLINK
+# define HAVE_READLINK 0
+#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
/* 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
@@
-46,8
+50,10
@@
chdir_no_follow (char const *dir)
/* If open follows symlinks, lstat DIR and fstat FD to ensure that
they are the same file; if they are different files, set errno to
ELOOP (the same value that open uses for symlinks with
/* If open follows symlinks, lstat DIR and fstat FD to ensure that
they are the same file; if they are different files, set errno to
ELOOP (the same value that open uses for symlinks with
- O_NOFOLLOW) so the caller can report a failure. */
- if (! O_NOFOLLOW)
+ O_NOFOLLOW) so the caller can report a failure.
+ Skip this check if HAVE_READLINK == 0, which should be the case
+ on any system that lacks symlink support. */
+ if (HAVE_READLINK && ! HAVE_WORKING_O_NOFOLLOW)
{
struct stat sb1;
result = lstat (dir, &sb1);
{
struct stat sb1;
result = lstat (dir, &sb1);