mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-09 04:11:27 +08:00
44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
/* Copyright (C) 1992-2015 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
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <unistd.h>
|
|
#include <include/sys/stat.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
/* Return a malloc'd string containing the current directory name.
|
|
If the environment variable `PWD' is set, and its value is correct,
|
|
that value is used. */
|
|
|
|
char *
|
|
get_current_dir_name (void)
|
|
{
|
|
char *pwd;
|
|
struct stat64 dotstat, pwdstat;
|
|
|
|
pwd = getenv ("PWD");
|
|
if (pwd != NULL
|
|
&& stat64 (".", &dotstat) == 0
|
|
&& stat64 (pwd, &pwdstat) == 0
|
|
&& pwdstat.st_dev == dotstat.st_dev
|
|
&& pwdstat.st_ino == dotstat.st_ino)
|
|
/* The PWD value is correct. Use it. */
|
|
return __strdup (pwd);
|
|
|
|
return __getcwd ((char *) NULL, 0);
|
|
}
|