/* * Copyright (C) 2015 The Android Open Source Project * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include extern bool initialize_windows_sockets(); SOCKET socket_network_client(const char* host, int port, int type) { if (!initialize_windows_sockets()) { return INVALID_SOCKET; } // First resolve the host and port parameters into a usable network address. struct addrinfo hints; memset(&hints, 0, sizeof(hints)); hints.ai_socktype = type; struct addrinfo* address = NULL; char port_str[16]; snprintf(port_str, sizeof(port_str), "%d", port); if (getaddrinfo(host, port_str, &hints, &address) != 0 || address == NULL) { if (address != NULL) { freeaddrinfo(address); } return INVALID_SOCKET; } // Now create and connect the socket. SOCKET sock = socket(address->ai_family, address->ai_socktype, address->ai_protocol); if (sock == INVALID_SOCKET) { freeaddrinfo(address); return INVALID_SOCKET; } if (connect(sock, address->ai_addr, address->ai_addrlen) == SOCKET_ERROR) { closesocket(sock); freeaddrinfo(address); return INVALID_SOCKET; } freeaddrinfo(address); return sock; }