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#include <Winsock2.h>
#include <stdio.h>
void main()
{
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD( 2, 2 );
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 ) {
return;
}
if ( LOBYTE( wsaData.wVersion ) != 2 ||
HIBYTE( wsaData.wVersion ) != 2 ) {
WSACleanup( );
return;
}
//定义服务器端的套接字
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(6000);
//绑定套接字
bind(sockSrv,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR));
//将套接字设为监听模式
listen(sockSrv,5);
SOCKADDR_IN addrClient;
int len = sizeof(SOCKADDR);
//等待客户请求
while(1)
{
SOCKET sockCoon = accept(sockSrv,(SOCKADDR*)&addrClient,&len);
char sendBuf[100];
sprintf(sendBuf,"Welcome %s to http://wangtengchao.com",inet_ntoa(addrClient.sin_addr));
send(sockCoon,sendBuf,strlen(sendBuf)+1,0);
//接收信息
char recvBuf[100];
int len = recv(sockCoon,recvBuf,100,0);
recvBuf[len] = '\0'; //这里要加上字符串结束符
printf("%s\n",recvBuf);
//关闭套接字
closesocket(sockCoon);
}
}
客户端CPP
#include <Winsock2.h>
#include <stdio.h>
void main()
{
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD( 2, 2 );
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 ) {
return;
}
if ( LOBYTE( wsaData.wVersion ) != 2 ||
HIBYTE( wsaData.wVersion ) != 2 ) {
WSACleanup( );
return;
}
//创建客户端的套接字
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(6000);
connect(sockClient,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR));
char recvBuf[100];
int ret = recv(sockClient,recvBuf,100,0);
recvBuf[len] = '\0'; //这里要加上字符串结束符
printf("%s\n",recvBuf);
send(sockClient,"i anmclient",strlen("i an client")+1,0);
closesocket(sockClient);
WSACleanup();
}