allwpilib/wpiutil/src/main/native/cpp/SocketError.cpp

/*----------------------------------------------------------------------------*/
/* Copyright (c) 2015-2018 FIRST. All Rights Reserved.                        */
/* Open Source Software - may be modified and shared by FRC teams. The code   */
/* must be accompanied by the FIRST BSD license file in the root directory of */
/* the project.                                                               */
/*----------------------------------------------------------------------------*/

#include "wpi/SocketError.h"

#ifdef _WIN32
#include <winsock2.h>
#else
#include <cerrno>
#include <cstring>
#endif

namespace wpi {

int SocketErrno() {
#ifdef _WIN32
  return WSAGetLastError();
#else
  return errno;
#endif
}

std::string SocketStrerror(int code) {
#ifdef _WIN32
  LPSTR errstr = nullptr;
  FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, 0,
                code, 0, (LPSTR)&errstr, 0, 0);
  std::string rv(errstr);
  LocalFree(errstr);
  return rv;
#else
  return std::strerror(code);
#endif
}

}  // namespace wpi