1*ec63e07aSXin Li // Copyright 2019 Google LLC 2*ec63e07aSXin Li // 3*ec63e07aSXin Li // Licensed under the Apache License, Version 2.0 (the "License"); 4*ec63e07aSXin Li // you may not use this file except in compliance with the License. 5*ec63e07aSXin Li // You may obtain a copy of the License at 6*ec63e07aSXin Li // 7*ec63e07aSXin Li // https://www.apache.org/licenses/LICENSE-2.0 8*ec63e07aSXin Li // 9*ec63e07aSXin Li // Unless required by applicable law or agreed to in writing, software 10*ec63e07aSXin Li // distributed under the License is distributed on an "AS IS" BASIS, 11*ec63e07aSXin Li // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12*ec63e07aSXin Li // See the License for the specific language governing permissions and 13*ec63e07aSXin Li // limitations under the License. 14*ec63e07aSXin Li 15*ec63e07aSXin Li #ifndef SANDBOXED_API_UTIL_STRERROR_H_ 16*ec63e07aSXin Li #define SANDBOXED_API_UTIL_STRERROR_H_ 17*ec63e07aSXin Li 18*ec63e07aSXin Li #include <cstddef> 19*ec63e07aSXin Li #include <string> 20*ec63e07aSXin Li 21*ec63e07aSXin Li namespace sapi { 22*ec63e07aSXin Li 23*ec63e07aSXin Li // Returns a human-readable string describing the given POSIX error code. This 24*ec63e07aSXin Li // is a portable and thread-safe alternative to strerror(). If the error code is 25*ec63e07aSXin Li // not translatable, the string will be "Unknown error nnn". errno will not be 26*ec63e07aSXin Li // modified by this call. This function is thread-safe. 27*ec63e07aSXin Li std::string StrError(int errnum); 28*ec63e07aSXin Li 29*ec63e07aSXin Li // Same as StrError but uses provided buffer (does not allocate memory). 30*ec63e07aSXin Li // Might use and return a static immutable buffer instead of buf. 31*ec63e07aSXin Li const char* RawStrError(int errnum, char* buf, size_t buflen); 32*ec63e07aSXin Li 33*ec63e07aSXin Li } // namespace sapi 34*ec63e07aSXin Li 35*ec63e07aSXin Li #endif // SANDBOXED_API_STRERROR_H_ 36