1 /* -*- buffer-read-only: t -*- vi: set ro: */
2 /* DO NOT EDIT! GENERATED AUTOMATICALLY! */
3 /* areadlinkat.c -- readlinkat wrapper to return malloc'd link name
4 Unlike xreadlinkat, only call exit on failure to change directory.
6 Copyright (C) 2001, 2003-2007, 2009-2014 Free Software Foundation, Inc.
8 This program is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
21 /* Written by Jim Meyering <jim@meyering.net>,
22 and Bruno Haible <bruno@clisp.org>,
23 and Eric Blake <ebb9@byu.net>. */
28 #include "areadlink.h"
30 #include "careadlinkat.h"
34 /* Call readlinkat to get the symbolic link value of FILENAME relative to FD.
35 Return a pointer to that NUL-terminated string in malloc'd storage.
36 If readlinkat fails, return NULL and set errno (although failure to
37 change directory will issue a diagnostic and exit).
38 If allocation fails, or if the link value is longer than SIZE_MAX :-),
39 return NULL and set errno to ENOMEM. */
42 areadlinkat (int fd, char const *filename)
44 return careadlinkat (fd, filename, NULL, 0, NULL, readlinkat);
47 #else /* !HAVE_READLINKAT */
49 /* It is more efficient to change directories only once and call
50 areadlink, rather than repeatedly call the replacement
53 # define AT_FUNC_NAME areadlinkat
54 # define AT_FUNC_F1 areadlink
55 # define AT_FUNC_POST_FILE_PARAM_DECLS /* empty */
56 # define AT_FUNC_POST_FILE_ARGS /* empty */
57 # define AT_FUNC_RESULT char *
58 # define AT_FUNC_FAIL NULL
62 # undef AT_FUNC_POST_FILE_PARAM_DECLS
63 # undef AT_FUNC_POST_FILE_ARGS
64 # undef AT_FUNC_RESULT
67 #endif /* !HAVE_READLINKAT */