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// Copyright 2016 Benjamin Barenblat
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy
// of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
#define _POSIX_C_SOURCE 201502L
#undef _GNU_SOURCE
#include "utility.h"
#include <string.h>
#include <cerrno>
#include <string>
#include <vector>
#include <glog/logging.h>
namespace scoville {
std::string ErrnoText() {
std::vector<char> text(64);
int strerror_result;
while ((strerror_result = strerror_r(errno, text.data(), text.size())) ==
ERANGE) {
VLOG(1) << "ErrnoText doubling message size from " << text.size();
text.resize(text.size() * 2);
}
if (strerror_result != 0) {
return "(could not generate error message)";
}
return std::string(text.begin(), text.end());
}
} // namespace scoville
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