1/* areadlink.c -- readlink wrapper to return the link name in malloc'd storage
2   Unlike xreadlink and xreadlink_with_size, don't ever call exit.
3
4   Copyright (C) 2001, 2003-2007, 2009-2011 Free Software Foundation, Inc.
5
6   This program is free software: you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by
8   the Free Software Foundation; either version 3 of the License, or
9   (at your option) any later version.
10
11   This program is distributed in the hope that it will be useful,
12   but WITHOUT ANY WARRANTY; without even the implied warranty of
13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   GNU General Public License for more details.
15
16   You should have received a copy of the GNU General Public License
17   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
18
19/* Written by Jim Meyering <jim@meyering.net>
20   and Bruno Haible <bruno@clisp.org>.  */
21
22#include <config.h>
23
24/* Specification.  */
25#include "areadlink.h"
26
27#include "careadlinkat.h"
28
29/* Call readlink to get the symbolic link value of FILENAME.
30   Return a pointer to that NUL-terminated string in malloc'd storage.
31   If readlink fails, return NULL and set errno.
32   If allocation fails, or if the link value is longer than SIZE_MAX :-),
33   return NULL and set errno to ENOMEM.  */
34
35char *
36areadlink (char const *filename)
37{
38  return careadlinkat (AT_FDCWD, filename, NULL, 0, NULL, careadlinkatcwd);
39}
40