网络通信之简易聊天室（UDP实现）

来源：互联网发布：2016年济南市酒驾数据编辑：程序博客网时间：2024/04/28 07:33

服务端程序

#include <Winsock2.h>#include <stdio.h>#pragma comment(lib,"Ws2_32.lib")void main(){    ///////////配置了socket的版本信息    WORD wVersionRequested;    WSADATA wsaData;    int err;    wVersionRequested = MAKEWORD( 1, 1 );    ////0  成功     err = WSAStartup( wVersionRequested, &wsaData );    if ( err != 0 ) {        return;    }    if ( LOBYTE( wsaData.wVersion ) != 1 ||        HIBYTE( wsaData.wVersion ) != 1 ) {        WSACleanup( );        return;     }    //////////////////////////    /*    socket函数的使用    SOCKET sockSrv=socket(AF_INET,SOCK_DGRAM,0);    */    SOCKET sockSrv=socket(AF_INET,SOCK_DGRAM,0);    SOCKADDR_IN addrSrv;    addrSrv.sin_addr.S_un.S_addr=htonl(INADDR_ANY);    addrSrv.sin_family=AF_INET;    addrSrv.sin_port=htons(6000);    bind(sockSrv,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR));    char recvBuf[100];    char sendBuf[100];    char tempBuf[200];    SOCKADDR_IN addrClient;    int len=sizeof(SOCKADDR);    while(1)    {        recvfrom(sockSrv,recvBuf,100,0,(SOCKADDR*)&addrClient,&len);        if('q'==recvBuf[0])        {            sendto(sockSrv,"q",strlen("q")+1,0,(SOCKADDR*)&addrClient,len);            printf("Chat end!\n");            break;        }        sprintf(tempBuf,"%s say : %s",inet_ntoa(addrClient.sin_addr),recvBuf);        printf("%s\n",tempBuf);        printf("Please input data:\n");        gets(sendBuf);        sendto(sockSrv,sendBuf,strlen(sendBuf)+1,0,(SOCKADDR*)&addrClient,len);    }    closesocket(sockSrv);    WSACleanup();}

客户端程序

#include <Winsock2.h>#include <stdio.h>#pragma comment(lib,"Ws2_32.lib")void 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_DGRAM,0);    SOCKADDR_IN addrSrv;    addrSrv.sin_addr.S_un.S_addr=inet_addr("127.0.0.1");    //addrSrv.sin_addr.S_un.S_addr=inet_addr("192.168.1.90");    addrSrv.sin_family=AF_INET;    addrSrv.sin_port=htons(6000);    char recvBuf[100];    char sendBuf[100];    char tempBuf[200];    int len=sizeof(SOCKADDR);    while(1)    {        printf("Please input data:\n");        gets(sendBuf);        sendto(sockClient,sendBuf,strlen(sendBuf)+1,0,            (SOCKADDR*)&addrSrv,len);        recvfrom(sockClient,recvBuf,100,0,(SOCKADDR*)&addrSrv,&len);        if('q'==recvBuf[0])        {            sendto(sockClient,"q",strlen("q")+1,0,                (SOCKADDR*)&addrSrv,len);            printf("Chat end!\n");            break;        }        sprintf(tempBuf,"%s say : %s",inet_ntoa(addrSrv.sin_addr),recvBuf);        printf("%s\n",tempBuf);    }    closesocket(sockClient);    WSACleanup();}

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