/* vi: set sw=4 ts=4: */ /* Copyright (C) 1992, 1997, 1998, 2000 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #include <features.h> #ifdef __USE_GNU #include <unistd.h> #include <sys/stat.h> #include <stdlib.h> #include <string.h> libc_hidden_proto(strdup) libc_hidden_proto(getcwd) libc_hidden_proto(getenv) #ifdef __UCLIBC_HAS_LFS__ libc_hidden_proto(stat64) #else libc_hidden_proto(stat) #endif /* 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; #ifdef __UCLIBC_HAS_LFS__ struct stat64 dotstat, pwdstat; #else struct stat dotstat, pwdstat; #endif pwd = getenv ("PWD"); if (pwd != NULL #ifdef __UCLIBC_HAS_LFS__ && stat64 (".", &dotstat) == 0 && stat64 (pwd, &pwdstat) == 0 #else && stat (".", &dotstat) == 0 && stat (pwd, &pwdstat) == 0 #endif && 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); } #endif