47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
/*
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* Copyright (C) 2003-2015 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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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 General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include "FileSystem.hxx"
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#include "AllocatedPath.hxx"
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#include "Limits.hxx"
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#include <errno.h>
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AllocatedPath
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ReadLink(Path path)
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{
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#ifdef WIN32
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(void)path;
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errno = EINVAL;
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return AllocatedPath::Null();
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#else
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char buffer[MPD_PATH_MAX];
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ssize_t size = readlink(path.c_str(), buffer, MPD_PATH_MAX);
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if (size < 0)
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return AllocatedPath::Null();
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if (size_t(size) >= MPD_PATH_MAX) {
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errno = ENOMEM;
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return AllocatedPath::Null();
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}
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buffer[size] = '\0';
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return AllocatedPath::FromFS(buffer);
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#endif
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}
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