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/*
* Copyright (C) 2003-2013 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "FileSystem.hxx"
#include <errno.h>
bool ReadLink(const Path &path, Path &result)
{
#ifdef WIN32
(void)path;
result = Path::Null();
errno = EINVAL;
return false;
#else
char buffer[MPD_PATH_MAX];
ssize_t size = readlink(path.c_str(), buffer, MPD_PATH_MAX);
int orig_errno = errno;
if (size < 0) {
result = Path::Null();
errno = orig_errno;
return false;
}
if (size >= MPD_PATH_MAX) {
result = Path::Null();
errno = ENOMEM;
return false;
}
buffer[size] = '\0';
result = Path::FromFS(buffer);
if (result.IsNull()) {
errno = ENOMEM;
return false;
}
errno = orig_errno;
return true;
#endif
}
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