tcpclient.cpp

来自「C++ implements TCP/IP protocol」· C++ 代码 · 共 45 行

#include <winsock2.h>
#include <stdio.h>

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 SocketClient=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(SocketClient,(SOCKADDR*)&AddrSrv,sizeof(SOCKADDR));

	char RecieveBuff[100];
	recv(SocketClient,RecieveBuff,100,0);
	printf("Recieve data stream from server: \n%s\n",RecieveBuff);

	send(SocketClient,"Thank you for serving me TCP/IP protocol!",
		strlen("Thank you for serving me TCP/IP protocol!")+1,0);
	closesocket(SocketClient);

	WSACleanup();


}