Scott E. Graves
035f830b71
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77 lines
2.6 KiB
C++
77 lines
2.6 KiB
C++
/*
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Copyright <2018-2024> <scott.e.graves@protonmail.com>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#if !defined(_WIN32)
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#include "utils/unix.hpp"
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#include "utils/collection.hpp"
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namespace repertory::utils {
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#if !defined(__APPLE__)
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auto convert_to_uint64(const pthread_t &thread) -> std::uint64_t {
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return static_cast<std::uint64_t>(thread);
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}
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#endif // !defined(__APPLE__)
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auto get_last_error_code() -> int { return errno; }
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auto get_thread_id() -> std::uint64_t {
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return convert_to_uint64(pthread_self());
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}
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auto is_uid_member_of_group(const uid_t &uid, const gid_t &gid) -> bool {
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std::vector<gid_t> groups{};
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use_getpwuid(uid, [&groups](struct passwd *pass) {
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int group_count{};
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if (getgrouplist(pass->pw_name, pass->pw_gid, nullptr, &group_count) < 0) {
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groups.resize(static_cast<std::size_t>(group_count));
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#if defined(__APPLE__)
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getgrouplist(pass->pw_name, pass->pw_gid,
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reinterpret_cast<int *>(groups.data()), &group_count);
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#else // !defined(__APPLE__)
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getgrouplist(pass->pw_name, pass->pw_gid, groups.data(), &group_count);
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#endif // defined(__APPLE__)
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}
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});
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return collection::includes(groups, gid);
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}
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auto use_getpwuid(uid_t uid, passwd_callback_t callback) -> result {
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static constexpr const std::string_view function_name{
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static_cast<const char *>(__FUNCTION__),
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};
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static std::mutex mtx{};
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mutex_lock lock{mtx};
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auto *temp_pw = getpwuid(uid);
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if (temp_pw == nullptr) {
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return {function_name, false, "'getpwuid' returned nullptr"};
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}
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callback(temp_pw);
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return {function_name};
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}
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} // namespace repertory::utils
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#endif // !defined(_WIN32)
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