windows的socket_tcp服务端与 windows的socket_tcp客服端简单通讯

最新推荐文章于 2024-08-16 22:28:35 发布

原创最新推荐文章于 2024-08-16 22:28:35 发布 · 410 阅读

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本文提供了Windows环境下使用Socket进行TCP通信的服务端与客户端示例代码。服务端监听任意可用地址的1234端口，接收连接并发送欢迎消息；客户端连接到本地127.0.0.1的1234端口，并发送字符串'hello'。

windows的socket_tcp服务端代码如下:

#include <stdio.h>
#include <Winsock2.h>
#pragma comment(lib,"ws2_32")
#include <windows.h>
int main()
{
    WORD wVersionRequested;
    WSADATA wsaData;
    int err;
    
    wVersionRequested = MAKEWORD( 1, 1 );
    
    err = WSAStartup( wVersionRequested, &wsaData );
    if ( err != 0 ) {
        return;
    }
    
    if ( LOBYTE( wsaData.wVersion ) != 1 ||
    HIBYTE( wsaData.wVersion ) != 1 ) {
        WSACleanup();
        return;
    }
    SOCKET sockSrv=socket(AF_INET,SOCK_STREAM,0);
    
    SOCKADDR_IN addrSrv;
    addrSrv.sin_addr.S_un.S_addr=htonl(INADDR_ANY);
    addrSrv.sin_family=AF_INET;
    addrSrv.sin_port=htons(1234);
    
    bind(sockSrv,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR));
    
    listen(sockSrv,5);
    
    SOCKADDR_IN addrClient;
    int len=sizeof(SOCKADDR);
    while(1)
    {
        SOCKET sockConn=accept(sockSrv,(SOCKADDR*)&addrClient,&len);
        char sendBuf[50];
        sprintf(sendBuf,"Welcome %s to here!",inet_ntoa(addrClient.sin_addr));
        send(sockConn,sendBuf,strlen(sendBuf)+1,0);
        char recvBuf[50];
        recv(sockConn,recvBuf,50,0);
        printf("%s\n",recvBuf);
        closesocket(sockConn);
    }
}

windows的socket_tcp客服端代码如下:

#include <stdio.h>
#include <Winsock2.h>
#pragma comment(lib,"ws2_32")
#include <windows.h>
int main()
{
    WORD wVersionRequested;
    WSADATA wsaData;
    int err;
   
    wVersionRequested = MAKEWORD( 1, 1 );
   
    err = WSAStartup( wVersionRequested, &wsaData );
    if ( err != 0 ) {
        return;
    }
   
    if ( LOBYTE( wsaData.wVersion ) != 1 ||
        HIBYTE( wsaData.wVersion ) != 1 ) {
        WSACleanup( );
        return;
    }
    SOCKET sockClient=socket(AF_INET,SOCK_STREAM,0);
   
    SOCKADDR_IN addrSrv;
    addrSrv.sin_addr.S_un.S_addr=inet_addr("127.0.0.1");
    addrSrv.sin_family=AF_INET;
    addrSrv.sin_port=htons(1234);
    connect(sockClient,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR));
    send(sockClient,"hello",strlen("hello")+1,0);
    char recvBuf[50];
    recv(sockClient,recvBuf,50,0);
    printf("%s\n",recvBuf);
    closesocket(sockClient);
    WSACleanup();
}