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71 lines
2.1 KiB
C++
71 lines
2.1 KiB
C++
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/* Copyright (c) 2016, Pollard Banknote Limited
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation and/or
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other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its contributors
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may be used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "tempdir.h"
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#include <cstdlib>
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namespace cpp17
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{
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namespace filesystem
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{
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/* TMPDIR is the POSIX variable for the temporary directory. Other variables
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* are sometimes used, however, in non-conforming environments. Those are
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* checked as fallback (following Boost's implementation)
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*/
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path temp_directory_path()
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{
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const char* p = std::getenv("TMPDIR");
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if ( !p )
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{
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p = std::getenv("TMP");
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if ( !p )
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{
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p = std::getenv("TEMP");
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if ( !p )
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{
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p = std::getenv("TEMPDIR");
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if ( !p )
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{
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p = "/tmp";
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}
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}
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}
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}
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return path(p);
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}
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}
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}
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