185 lines
5 KiB
C++
185 lines
5 KiB
C++
/*************************************************************************/
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/* tcp_server_winsock.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "tcp_server_winsock.h"
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#include "stream_peer_winsock.h"
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#include <winsock2.h>
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#include <ws2tcpip.h>
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#include "drivers/unix/socket_helpers.h"
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extern int winsock_refcount;
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TCP_Server* TCPServerWinsock::_create() {
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return memnew(TCPServerWinsock);
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};
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void TCPServerWinsock::make_default() {
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TCP_Server::_create = TCPServerWinsock::_create;
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if (winsock_refcount == 0) {
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WSADATA data;
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WSAStartup(MAKEWORD(2,2), &data);
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};
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++winsock_refcount;
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};
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void TCPServerWinsock::cleanup() {
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--winsock_refcount;
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if (winsock_refcount == 0) {
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WSACleanup();
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};
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};
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Error TCPServerWinsock::listen(uint16_t p_port, IP_Address::AddrType p_type,const List<String> *p_accepted_hosts) {
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int sockfd;
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sockfd = _socket_create(p_type, SOCK_STREAM, IPPROTO_TCP);
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ERR_FAIL_COND_V(sockfd == INVALID_SOCKET, FAILED);
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if(p_type == IP_Address::TYPE_IPV6) {
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// Use IPv6 only socket
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int yes = 1;
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if(setsockopt(sockfd, IPPROTO_IPV6, IPV6_V6ONLY, (const char*)&yes, sizeof(yes)) != 0) {
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WARN_PRINT("Unable to unset IPv4 address mapping over IPv6");
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}
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}
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unsigned long par = 1;
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if (ioctlsocket(sockfd, FIONBIO, &par)) {
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perror("setting non-block mode");
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stop();
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return FAILED;
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};
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struct sockaddr_storage my_addr;
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size_t addr_size = _set_listen_sockaddr(&my_addr, p_port, p_type, p_accepted_hosts);
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int reuse=1;
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if(setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (char *)&reuse, sizeof(reuse)) < 0) {
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printf("REUSEADDR failed!");
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}
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if (bind(sockfd, (struct sockaddr *)&my_addr, addr_size) != SOCKET_ERROR) {
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if (::listen(sockfd, SOMAXCONN) == SOCKET_ERROR) {
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closesocket(sockfd);
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ERR_FAIL_V(FAILED);
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};
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}
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else {
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return ERR_ALREADY_IN_USE;
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};
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if (listen_sockfd != INVALID_SOCKET) {
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stop();
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};
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listen_sockfd = sockfd;
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return OK;
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};
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bool TCPServerWinsock::is_connection_available() const {
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if (listen_sockfd == -1) {
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return false;
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};
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timeval timeout;
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timeout.tv_sec = 0;
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timeout.tv_usec = 0;
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fd_set pfd;
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FD_ZERO(&pfd);
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FD_SET(listen_sockfd, &pfd);
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int ret = select(listen_sockfd + 1, &pfd, NULL, NULL, &timeout);
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ERR_FAIL_COND_V(ret < 0, 0);
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if (ret && (FD_ISSET(listen_sockfd, &pfd))) {
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return true;
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};
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return false;
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};
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Ref<StreamPeerTCP> TCPServerWinsock::take_connection() {
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if (!is_connection_available()) {
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return NULL;
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};
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struct sockaddr_storage their_addr;
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int sin_size = sizeof(their_addr);
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int fd = accept(listen_sockfd, (struct sockaddr *)&their_addr, &sin_size);
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ERR_FAIL_COND_V(fd == INVALID_SOCKET, NULL);
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Ref<StreamPeerWinsock> conn = memnew(StreamPeerWinsock);
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IP_Address ip;
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int port;
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_set_ip_addr_port(ip, port, &their_addr);
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conn->set_socket(fd, ip, port);
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return conn;
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};
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void TCPServerWinsock::stop() {
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if (listen_sockfd != INVALID_SOCKET) {
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closesocket(listen_sockfd);
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};
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listen_sockfd = -1;
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};
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TCPServerWinsock::TCPServerWinsock() {
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listen_sockfd = INVALID_SOCKET;
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};
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TCPServerWinsock::~TCPServerWinsock() {
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stop();
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};
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