1 /* Copyright (C) 1992-2020 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
19 #include <include/sys/stat.h>
23 /* Return a malloc'd string containing the current directory name.
24 If the environment variable `PWD' is set, and its value is correct,
25 that value is used. */
28 get_current_dir_name (void)
31 struct stat64 dotstat
, pwdstat
;
35 && __stat64 (".", &dotstat
) == 0
36 && __stat64 (pwd
, &pwdstat
) == 0
37 && pwdstat
.st_dev
== dotstat
.st_dev
38 && pwdstat
.st_ino
== dotstat
.st_ino
)
39 /* The PWD value is correct. Use it. */
40 return __strdup (pwd
);
42 return __getcwd ((char *) NULL
, 0);