mpd/src/net/SocketError.cxx
Max Kellermann dfaf08743c *: check defined(_WIN32) instead of defined(WIN32)
Only _WIN32 is defined by the compiler, and WIN32 is not standardized
and may be missing.

Closes #169
2017-12-12 10:22:20 +01:00

63 lines
1.6 KiB
C++

/*
* Copyright 2003-2017 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "SocketError.hxx"
#include "util/Macros.hxx"
#include <string.h>
#ifdef _WIN32
SocketErrorMessage::SocketErrorMessage(socket_error_t code) noexcept
{
#ifdef _UNICODE
wchar_t buffer[ARRAY_SIZE(msg)];
#else
auto *buffer = msg;
#endif
DWORD nbytes = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS |
FORMAT_MESSAGE_MAX_WIDTH_MASK,
nullptr, code, 0,
buffer, ARRAY_SIZE(msg), nullptr);
if (nbytes == 0) {
strcpy(msg, "Unknown error");
return;
}
#ifdef _UNICODE
auto length = WideCharToMultiByte(CP_UTF8, 0, buffer, -1,
msg, ARRAY_SIZE(msg),
nullptr, nullptr);
if (length <= 0) {
strcpy(msg, "WideCharToMultiByte() error");
return;
}
#endif
}
#else
SocketErrorMessage::SocketErrorMessage(socket_error_t code) noexcept
:msg(strerror(code)) {}
#endif