sockets.c

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/*
   +----------------------------------------------------------------------+
   | Copyright (c) The PHP Group                                          |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | https://www.php.net/license/3_01.txt                                 |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Authors: Chris Vandomelen <chrisv@b0rked.dhs.org>                    |
   |          Sterling Hughes  <sterling@php.net>                         |
   |                                                                      |
   | WinSock: Daniel Beulshausen <daniel@php4win.de>                      |
   +----------------------------------------------------------------------+
 */
 
/* Code originally from ext/sockets */
 
#include <stdio.h>
#include <fcntl.h>
 
#include "php.h"
 
PHPAPI int socketpair_win32(int domain, int type, int protocol, SOCKET sock[2], int overlapped)
{
    struct sockaddr_in address;
    SOCKET redirect;
    int size = sizeof(address);
 
    if (domain != AF_INET) {
        WSASetLastError(WSAENOPROTOOPT);
        return -1;
    }
 
    sock[1] = redirect = INVALID_SOCKET;
 
    sock[0] = socket(domain, type, protocol);
    if (INVALID_SOCKET == sock[0]) {
        goto error;
    }
 
    address.sin_addr.s_addr = INADDR_ANY;
    address.sin_family = AF_INET;
    address.sin_port = 0;
 
    if (bind(sock[0], (struct sockaddr *) &address, sizeof(address)) != 0) {
        goto error;
    }
 
    if (getsockname(sock[0], (struct sockaddr *) &address, &size) != 0) {
        goto error;
    }
 
    if (listen(sock[0], 2) != 0) {
        goto error;
    }
 
    if (overlapped) {
        sock[1] = socket(domain, type, protocol);
    } else {
        sock[1] = WSASocket(domain, type, protocol, NULL, 0, 0);
    }
 
    if (INVALID_SOCKET == sock[1]) {
        goto error;
    }
 
    address.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
    if (connect(sock[1], (struct sockaddr *) &address, sizeof(address)) != 0) {
        goto error;
    }
 
    redirect = accept(sock[0], (struct sockaddr *) &address, &size);
    if (INVALID_SOCKET == redirect) {
        goto error;
    }
 
    closesocket(sock[0]);
    sock[0] = redirect;
 
    return 0;
 
error:
    closesocket(redirect);
    closesocket(sock[0]);
    closesocket(sock[1]);
    WSASetLastError(WSAECONNABORTED);
    return -1;
}
 
PHPAPI int socketpair(int domain, int type, int protocol, SOCKET sock[2])
{
    return socketpair_win32(domain, type, protocol, sock, 1);
}