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44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
/* Copyright (C) 1992-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <unistd.h>
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#include <include/sys/stat.h>
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#include <stdlib.h>
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#include <string.h>
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/* Return a malloc'd string containing the current directory name.
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If the environment variable `PWD' is set, and its value is correct,
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that value is used. */
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char *
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get_current_dir_name (void)
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{
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char *pwd;
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struct stat64 dotstat, pwdstat;
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pwd = getenv ("PWD");
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if (pwd != NULL
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&& stat64 (".", &dotstat) == 0
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&& stat64 (pwd, &pwdstat) == 0
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&& pwdstat.st_dev == dotstat.st_dev
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&& pwdstat.st_ino == dotstat.st_ino)
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/* The PWD value is correct. Use it. */
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return __strdup (pwd);
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return __getcwd ((char *) NULL, 0);
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}
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