winsock編程-入門

標籤：網路編程

client：

#include<winsock2.h>#include<cstdio>#pragma comment(lib,"ws2_32.lib")int main(){    int err;    WORD versionRequired;    WSADATA WSAData;    versionRequired=MAKEWORD(1,1);    err=WSAStartup(versionRequired,&WSAData);    if(!err)        printf("start\n");    else    {        printf("error\n");        return 1;    }    SOCKET clientSocket=socket(AF_INET,SOCK_STREAM,0);    SOCKADDR_IN clientsock_in;    clientsock_in.sin_addr.S_un.S_addr=inet_addr("127.0.0.1");    clientsocket_in.sin_family=AF_INET;    clientsock_in.sin_port=htons(6000);    connect(clientSocket,(SOCKADDR*)&clientsock_in,sizeof(SOCKADDR));    char receiveBuf[100];    if(true)    {        printf("Send:%s\n","hello,this is client");        send(clientSocket,"hello,this is client",strlen("hello,this is client")+1,0);        recv(clientSocket,receiveBuf,101,0);        printf("recv:%s\n",receiveBuf);        closesocket(clientSocket);        WSACleanup();    }    return 0;}

sever

/*server.cpp*/#include <WINSOCK2.H>#include <stdio.h>#pragma comment(lib,"ws2_32.lib")int main(int argc,char **argv){    //建立通訊端    WORD myVersionRequest;    WSADATA wsaData;    myVersionRequest=MAKEWORD(1,1);    int err;    err=WSAStartup(myVersionRequest,&wsaData);    if (!err){        printf("已開啟通訊端\n");    }else{        printf("ERROR:嵌套字未開啟!");        return 1;    }    //進一步綁定通訊端    SOCKET serSocket=socket(AF_INET,SOCK_STREAM,0);//建立了可識別通訊端    //需要綁定的參數    SOCKADDR_IN addr;    addr.sin_family=AF_INET;    addr.sin_addr.S_un.S_addr=htonl(INADDR_ANY);//ip地址    addr.sin_port=htons(6000);//綁定連接埠    bind(serSocket,(SOCKADDR*)&addr,sizeof(SOCKADDR));//綁定完成    listen(serSocket,5);//其中第二個參數代表能夠接收的最多的串連數    //////////////////////////////////////////////////////////////////////////    //開始進行監聽    //////////////////////////////////////////////////////////////////////////    SOCKADDR_IN clientsocket;    int len=sizeof(SOCKADDR);    while (1)    {        SOCKET serConn=accept(serSocket,(SOCKADDR*)&clientsocket,&len);//如果這裡不是accept而是conection的話。。就會不斷的監聽        char sendBuf[100];        sprintf(sendBuf,"hello, %s !",inet_ntoa(clientsocket.sin_addr));//找對對應的IP並且將這行字列印到那裡        printf("Send:%s\n",sendBuf);        send(serConn,sendBuf,strlen(sendBuf)+1,0);        char receiveBuf[100];//接收        recv(serConn,receiveBuf,sizeof(receiveBuf),0);        printf("recv:%s\n",receiveBuf);        closesocket(serConn);//關閉        WSACleanup();//釋放資源的操作        return 0;    }    return 1;}

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winsock編程-入門