48 lines
1.1 KiB
C++
48 lines
1.1 KiB
C++
/* Environment handling implementation bits.
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*
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* This file is part of libostd. See COPYING.md for futher information.
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*/
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#include <cstdlib>
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#include <cstring>
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#include <new>
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#include "ostd/environ.hh"
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#ifdef OSTD_PLATFORM_WIN32
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# define WIN32_LEAN_AND_MEAN
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# include <windows.h>
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#endif
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namespace ostd {
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OSTD_EXPORT std::optional<std::string> env_get(string_range name) {
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char const *ret = std::getenv(std::string{name}.data());
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if (!ret) {
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return std::nullopt;
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}
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return std::string{ret};
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}
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OSTD_EXPORT bool env_set(string_range name, string_range value, bool update) {
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#ifndef OSTD_PLATFORM_WIN32
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return !setenv(std::string{name}.data(), std::string{value}.data(), update);
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#else
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std::string nstr{name};
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if (!update && GetEnvironmentVariable(nstr.data(), nullptr, 0)) {
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return true;
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}
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return !!SetEnvironmentVariable(nstr.data(), std::string{value}.data());
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#endif
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}
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OSTD_EXPORT bool env_unset(string_range name) {
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#ifndef OSTD_PLATFORM_WIN32
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return !unsetenv(std::string{name}.data());
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#else
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return !!SetEnvironmentVariable(std::string{name}.data(), nullptr);
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#endif
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}
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} /* namespace ostd */
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