{ printf("setsockopt failed:%d",WSAGetLastError()); closesocket(socketBro); WSACleanup...\n",i); } i++; } /*发送完毕后关闭套接字、释放占用资源*/ closesocket(socketBro); WSACleanup...socketRec==INVALID_SOCKET) { printf("Create socket error:%d",WSAGetLastError()); WSACleanup...{ printf("setsockopt failed:%d",WSAGetLastError()); closesocket(socketRec); WSACleanup...failed: %d\n", WSAGetLastError()); closesocket(socketMul); WSACleanup
SOCKET sServer = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); if (sServer == INVALID_SOCKET) { WSACleanup...const struct sockaddr*)&addrServ, sizeof(addrServ)) == SOCKET_ERROR) { closesocket(sServer); WSACleanup...return -1; } // 监听套接字 if (listen(sServer, 5) == SOCKET_ERROR) { closesocket(sServer); WSACleanup...FAR*) & addrClient, &addrClientLen); if (sClient == INVALID_SOCKET) { closesocket(sServer); WSACleanup...服务器套接字 SOCKET sHost = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); if (sHost == INVALID_SOCKET) { WSACleanup
== INVALID_SOCKET) { printf("socket failed with error %d\n",WSAGetLastError()); WSACleanup...printf("bind failed with error %d\n",WSAGetLastError()); closesocket(ListenSocket); WSACleanup...\n"); closesocket(ListenSocket); WSACleanup(); return -1; }//if SOCKET...printf("accept failed : %d\n",WSAGetLastError()); closesocket(ListenSocket); WSACleanup...,ClientThread,(LPVOID* )&clientInfo,0,&dwThreadID); }//while closesocket(ListenSocket); WSACleanup
= INVALID_SOCKET) { std::cout << "创建套接字失败: " << WSAGetLastError() << std::endl; WSACleanup...:cout << "监听连接请求失败: " << WSAGetLastError() << std::endl; closesocket(listenSocket); WSACleanup...:cout << "发送消息执行错误: " << WSAGetLastError() << std::endl; closesocket(clientSocket); WSACleanup...:cout << "接收消息执行错误: " << WSAGetLastError() << std::endl; closesocket(clientSocket); WSACleanup...< WSAGetLastError() << std::endl; //输出错误信息并退出程序 closesocket(connectSocket); //关闭套接字 WSACleanup
说明： 本程序是基于windows socket的套接字库实现网络编程; 当WSAStartup函数调用成功后，在程序的最后都需要相应的调用WSACleanup函数 以便释放为该应用程序分配的资源...= WSAStartup(dwVersionReq,&wsData)) { WSACleanup(); return 0; } //socket...= 1)) { WSACleanup(); return 0; } //创建服务套接字 SOCKET socketSrv = socket...= WSAStartup(dwVersionReq,&wsData)) { WSACleanup(); return 0; } //版本判断...= 1)) { WSACleanup(); return 0; } //创建套接字 SOCKET socketClient =
= 1)//版本检查 { WSACleanup();//清理套接字库 return -1; } //创建套接字 SOCKET sockServer...closesocket(sockConnect); } //关闭套接字 closesocket(sockServer); //清理套接字库 WSACleanup...= 1)//版本检查 { WSACleanup();//清理套接字库 return -1; } //创建TCP套接字 SOCKET sockClient...= 1) { WSACleanup(); return -1; } //创建套接字 SOCKET sockServer = socket(AF_INET,SOCK_DGRAM,0);...= 1) { WSACleanup(); return -1; } //创建UDP套接字 SOCKET sockClient = socket(AF_INET, SOCK_DGRAM,
文章目录 前言 一、开发前的配置 ( 头文件 | 编译参数设置 ) 二、网络初始化 WSAStartup 与清理 WSACleanup 操作 前言 本篇博客重点分析 CNetwork 网络模块 ; 一、...FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS) 二、网络初始化 WSAStartup 与清理 WSACleanup...CNetwork 中 , 定义了一个 WSAPrepare 私有类 , 在 Windows 中调用网络功能 , 必须执行 WSAStartup 初始化函数 , 否则无法使用网络功能 ; 使用完毕后 , 一定要执行 WSACleanup.../* 该私有类的作用是用于整体的网络初始化 在 Windows 中调用网络功能 , 必须执行 WSAStartup 初始化函数 , 否则无法使用网络功能 使用完毕后 , 一定要执行 WSACleanup...LPCSTR)CNetwork::GetErrorString()); (void)getchar(); abort(); } } ~WSAPrepare() { if (WSACleanup
\n"); closesocket(newsock); //WSACleanup(); return -1; } fwrite(filedata.package,1,BUFFERSIZE...\n"); WSACleanup(); return -1; } //设置服务器地址 struct sockaddr_in servaddr; memset(&servaddr,...\n"); closesocket(socklisten); WSACleanup(); } //在server上运行监听 if (listen(socklisten,20)!...\n"); closesocket(socklisten); WSACleanup(); return -1; } //接收客户端的连接请求 printf("TCP server...\n"); closesocket(connect); WSACleanup(); return -1; } //创建新线程 DWORD ThreadID; CreateThread
= 2 如果版本不对 WSACleanup();//清理网络库 return 0; 创建socket SOCKET socket( int af,...返回值 成功-返回可用的socket 失败-不用了一定要释放掉——closesocket(xxx); 然后再WSACleanup();清理网络库 注意二者的先后顺序，一定要先释放,然后再清理网路库...= 2) { //说明版本不对 printf("版本不对"); WSACleanup();//清理网络库 return 0; } //创建socket SOCKET socketServer...= 2) { //说明版本不对 printf("版本不对"); WSACleanup();//清理网络库 return 0; } //创建的是服务器的，客户端不用创建自己的socket...(); return 0; } } //清理网络库 closesocket(socketServer); WSACleanup(); system("pause"); return
= 2) { WSACleanup(); return 0; } if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1)...SSL_load_error_strings(); ctx = SSL_CTX_new(SSLv23_client_method()); if (ctx == NULL) { WSACleanup...= 2) { WSACleanup(); return 0; } if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0)...{ WSACleanup(); return 0; } dest.sin_family = AF_INET; dest.sin_addr.s_addr = inet_addr...= 0) { WSACleanup(); return 0; } ssl = SSL_new(ctx); SSL_set_fd(ssl, sockfd); if
\n"); WSACleanup(); exit(1); } struct sockaddr_in ServerAddr;...\n"); closesocket(sock); WSACleanup(); exit(1); } printf("Server...\n"); closesocket(sock); WSACleanup(); exit(1); } SOCKET msgsock...\n"); WSACleanup(); continue; } struct sockaddr_in ClientAddr...\n"); closesocket(sock); WSACleanup(); continue;
= 2) { WSACleanup(); return -2; } // 创建 socket 连接 SOCKET sock = socket...recvBuf), 0); cout << "recv data : " << ret << recvBuf << endl; } // 关闭 socket closesocket(sock); WSACleanup...= 2) { WSACleanup(); return -2; } // 创建 socket SOCKET sock = socket(AF\_INET, SOCK\_STREAM,...szAddress << " : " << recvBuf << endl; } // 关闭套接字 closesocket(sock); // 卸载套接字库 WSACleanup...sizeof(sendBuf), 0, (sockaddr\*)&srvaddr, sizeof(srvaddr)); // 关闭套接字 closesocket(sock); // 卸载套接字库 WSACleanup
. */ WSACleanup( ); return -1; } /* The WinSock DLL is acceptable...inet_ntoa(addrClient.sin_addr), addrClient.sin_port); //关闭套接字 closesocket(sockServer); //终止套接字库的使用 WSACleanup...the user that we could not find a usable */ /* WinSock DLL. */ WSACleanup...\n"); } //关闭套接字 closesocket(sockClient); //终止套接字库的使用 WSACleanup(); return 0; } 先启动服务端UDPServer
IPPROTO_TCP); if (m_socket == INVALID_SOCKET) { printf("Error at socket(): %ld\n", WSAGetLastError()); WSACleanup...== INVALID_SOCKET) { printf("Error at socket(): %ld\n", WSAGetLastError()); WSACleanup...printf("延迟连接出错\r\n"); closesocket(m_socket); WSACleanup...closesocket(hClientSocket); closesocket(m_socket); WSACleanup
那么程序代码如下 wVersionRequested = MAKEWORD( 2, 1 ); err = WSAStartup( wVersionRequested, &wsaData ); 二、WSACleanup...函数 int WSACleanup (void); 应用程序在完成对请求的Socket库的使用后，要调用WSACleanup函数来解除与Socket库的绑定并且释放Socket库所占用的系统资源。
, 10) == SOCKET_ERROR) { std::cout << "侦听套接字失败" << std::endl; closesocket(server_socket); WSACleanup...:cout << "接收状态: " << flag << std::endl; closesocket(message_socket); closesocket(server_socket); WSACleanup...SOCKET client_socket; if ((client_socket = socket(AF_INET, SOCK_STREAM, 0)) == SOCKET_ERROR) { WSACleanup...(LPSOCKADDR)&ClientAddr, sizeof(ClientAddr)) == SOCKET_ERROR) { closesocket(client_socket); WSACleanup...cout << "响应数据: " << response_buffer.command_string_a << std::endl; } closesocket(client_socket); WSACleanup
if (eventServer == WSA_INVALID_EVENT) { int a = WSAGetLastError(); closesocket(socketServer); WSACleanup...); //释放事件句柄 WSACloseEvent(eventServer); //释放所有socket closesocket(socketServer); //关闭网络库 WSACleanup...= LOBYTE(wdScokMsg.wVersion)) { //说明版本不对 //清理网络库 WSACleanup(); return 0; } SOCKET socketServer...WSAGetLastError(); if (INVALID_SOCKET == socketServer) { int a = WSAGetLastError(); //清理网络库 WSACleanup...SOMAXCONN)) { //出错了 int a = WSAGetLastError(); //释放 closesocket(socketServer); //清理网络库 WSACleanup
. */ WSACleanup(); return 1; } /* The WinSock DLL is acceptable...; if (ListenSocket == INVALID_SOCKET) { printf("Error at socket(): %ld\n", WSAGetLastError()); WSACleanup...\n"); closesocket(ListenSocket); WSACleanup(); return 1; } else { printf("监听网络端口成功......\n"); WSACleanup(); return -1; } printf("客户端成功连接到服务器....\n"); } WSACleanup(); printf("客户端已退出...\n"); getchar(); return 0; }
= 2) { WSACleanup(); return 0; } if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {...finish: SSL_shutdown(ssl); SSL_free(ssl); closesocket(new_fd); } closesocket(sockfd); WSACleanup...OpenSSL_add_all_algorithms(); SSL_load_error_strings(); ctx = SSL_CTX_new(SSLv23_client_method()); if (ctx == NULL) { WSACleanup...= 2) { WSACleanup(); return 0; } if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0) { WSACleanup...= 0) { WSACleanup(); return 0; } ssl = SSL_new(ctx); SSL_set_fd(ssl, sockfd); if (SSL_connect
srvAddr, sizeof(SOCKADDR))) { cout << "绑定失败，错误码为:" << WSAGetLastError() << endl; WSACleanup...== listen(sockListen, 5)) { cout << "侦听失败，错误码为：" << WSAGetLastError() << endl; WSACleanup...WSAGetLastError() << endl; closesocket(sockConn); closesocket(sockListen); WSACleanup...AcceptThread, &sockConn, 0, &g_nAcceptID); } WaitForSingleObject(g_hAccpetThread, INFINITE); WSACleanup
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