mirror of
https://github.com/saymrwulf/uhd.git
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ee520a9df5
Note: template_lvbitx.{cpp,hpp} need to be excluded from the
list of files that clang-format gets applied against.
host/lib/dep is also excluded from this change.
41 lines
928 B
C++
41 lines
928 B
C++
//
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// Copyright 2018 Ettus Research, a National Instruments Company
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//
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// SPDX-License-Identifier: GPL-3.0+
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//
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#include <uhd/config.hpp>
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#include <uhdlib/utils/paths.hpp>
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#ifdef BOOST_MSVC
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# include <windows.h>
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#else
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# include <wordexp.h>
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#endif
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std::string uhd::path_expandvars(const std::string& path)
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{
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if (path.empty()) {
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return path;
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}
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#ifdef BOOST_MSVC
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constexpr size_t max_pathlen = 4096;
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char result[max_pathlen];
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const size_t result_len =
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ExpandEnvironmentStrings(path.c_str(), &result[0], max_pathlen);
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if (result == 0) {
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return path;
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}
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return std::string(result, result + result_len);
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#else
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wordexp_t p;
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std::string return_value;
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if (wordexp(path.c_str(), &p, 0) == 0 && p.we_wordc > 0) {
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return_value = std::string(p.we_wordv[0]);
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} else {
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return_value = path;
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}
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wordfree(&p);
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return return_value;
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#endif
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}
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