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