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/* socketpair.c
* Copyright 2007 by Nathan C. Myers <ncm@cantrip.org>; some rights reserved.
* This code is Free Software. It may be copied freely, in original or
* modified form, subject only to the restrictions that (1) the author is
* relieved from all responsibilities for any use for any purpose, and (2)
* this copyright notice must be retained, unchanged, in its entirety. If
* for any reason the author might be held responsible for any consequences
* of copying or use, license is withheld.
*/
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
#include <thrift/windows/SocketPair.h>
#include <thrift/Thrift.h>
// stl
#include <string.h>
// Win32
#include <WS2tcpip.h>
int thrift_socketpair(int d, int type, int protocol, THRIFT_SOCKET sv[2]) {
THRIFT_UNUSED_VARIABLE(protocol);
THRIFT_UNUSED_VARIABLE(type);
THRIFT_UNUSED_VARIABLE(d);
union {
struct sockaddr_in inaddr;
struct sockaddr addr;
} a;
THRIFT_SOCKET listener;
int e;
socklen_t addrlen = sizeof(a.inaddr);
DWORD flags = 0;
int reuse = 1;
if (sv == 0) {
WSASetLastError(WSAEINVAL);
return SOCKET_ERROR;
}
listener = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (listener == INVALID_SOCKET)
return SOCKET_ERROR;
memset(&a, 0, sizeof(a));
a.inaddr.sin_family = AF_INET;
a.inaddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
a.inaddr.sin_port = 0;
sv[0] = sv[1] = INVALID_SOCKET;
do {
// ignore errors coming out of this setsockopt. This is because
// SO_EXCLUSIVEADDRUSE requires admin privileges on WinXP, but we don't
// want to force socket pairs to be an admin.
setsockopt(listener, SOL_SOCKET, SO_EXCLUSIVEADDRUSE, (char*)&reuse, (socklen_t)sizeof(reuse));
if (bind(listener, &a.addr, sizeof(a.inaddr)) == SOCKET_ERROR)
break;
if (getsockname(listener, &a.addr, &addrlen) == SOCKET_ERROR)
break;
if (listen(listener, 1) == SOCKET_ERROR)
break;
sv[0] = WSASocket(AF_INET, SOCK_STREAM, 0, NULL, 0, flags);
if (sv[0] == INVALID_SOCKET)
break;
if (connect(sv[0], &a.addr, sizeof(a.inaddr)) == SOCKET_ERROR)
break;
sv[1] = accept(listener, NULL, NULL);
if (sv[1] == INVALID_SOCKET)
break;
closesocket(listener);
return 0;
} while (0);
e = WSAGetLastError();
closesocket(listener);
closesocket(sv[0]);
closesocket(sv[1]);
WSASetLastError(e);
return SOCKET_ERROR;
}
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