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55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
/* Obsolete function to get current working directory.
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Copyright (C) 1991-2020 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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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <limits.h>
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#include <string.h>
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#include <unistd.h>
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char *
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getwd (char *buf)
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{
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#ifndef PATH_MAX
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#define PATH_MAX 1024
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#endif
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char tmpbuf[PATH_MAX];
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if (buf == NULL)
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{
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__set_errno (EINVAL);
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return NULL;
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}
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if (__getcwd (tmpbuf, PATH_MAX) == NULL)
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{
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/* We use 1024 here since it should really be enough and because
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this is a safe value. */
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__strerror_r (errno, buf, 1024);
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return NULL;
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}
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/* This is completely unsafe. Nobody can say how big the user
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provided buffer is. Perhaps the application and the libc
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disagree about the value of PATH_MAX. */
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return strcpy (buf, tmpbuf);
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}
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link_warning (getwd,
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"the `getwd' function is dangerous and should not be used.")
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