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49 lines
1.6 KiB
C
49 lines
1.6 KiB
C
/* Stub for readlink().
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Copyright (C) 2003-2007 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program 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
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <config.h>
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/* Specification. */
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#include <unistd.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <stddef.h>
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#if !HAVE_READLINK
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/* readlink() substitute for systems that don't have a readlink() function,
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such as DJGPP 2.03 and mingw32. */
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/* The official POSIX return type of readlink() is ssize_t, but since here
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we have no declaration in a public header file, we use 'int' as return
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type. */
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int
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readlink (const char *path, char *buf, size_t bufsize)
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{
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struct stat statbuf;
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/* In general we should use lstat() here, not stat(). But on platforms
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without symbolic links lstat() - if it exists - would be equivalent to
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stat(), therefore we can use stat(). This saves us a configure check. */
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if (stat (path, &statbuf) >= 0)
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errno = EINVAL;
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return -1;
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}
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#endif
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