コードオープンソース(4):WindowsにおけるCSの簡単な実現

#include<winsock.h>
#include<stdio.h>
#pragma comment(lib,"wsock32.lib")
int main()
{
	// 
	WORD wVersionRequested;  //Window Socket 
	WSADATA wsaData;
	int err;
	wVersionRequested = MAKEWORD( 1, 1 ); // ， 1.1 
	err = WSAStartup( wVersionRequested, &wsaData );
	if ( err != 0 )	{ return 1; }    // 

	if(LOBYTE( wsaData.wVersion)!= 1 ||
        HIBYTE(wsaData.wVersion) != 1) 
	{
		WSACleanup();
		return 1; 
	}
	// socket
	SOCKET sockSrv=socket(AF_INET,SOCK_STREAM,0); // 
    SOCKADDR_IN addrSrv;
	addrSrv.sin_family=AF_INET;
	addrSrv.sin_addr.S_un.S_addr=htonl(INADDR_ANY);// 
	addrSrv.sin_port=htons(5001);
    // bind
	if(bind(sockSrv,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR)) < 0)
	{
		printf("bind failed
");
		return 1;
	}
	// listen
    listen(sockSrv, 5); 
	SOCKADDR_IN  addrClient;
	while(true)
	{
		int len=sizeof(SOCKADDR);
		char sendBuf[100];
		char recvBuf[100];
		// sockConn 
		SOCKET sockConn=accept(sockSrv,(SOCKADDR*)&addrClient,&len);
		sprintf(sendBuf,"Welcome %s to seu",inet_ntoa(addrClient.sin_addr));
	    send(sockConn, sendBuf, strlen(sendBuf) + 1, 0);
		recv(sockConn, recvBuf, 100, 0);
		printf("%s
", recvBuf);
		closesocket(sockConn);
	}
	return 0;
}

#include<winsock.h>
#include<stdio.h>
#pragma comment(lib,"wsock32.lib")
int main()
{
	// 
	WORD wVersionRequested;  //Window Socket 
	WSADATA wsaData;
	int err;

	wVersionRequested = MAKEWORD( 1, 1 );   // ， 1.1 
	err = WSAStartup( wVersionRequested, &wsaData );
	if ( err != 0 )	{ return 1; }           // 

	if(LOBYTE( wsaData.wVersion)!= 1 ||
        HIBYTE(wsaData.wVersion) != 1) 
	{
		WSACleanup(); 
		return 1; 
	}

	char ip[] = "127.0.0.1";
	int port = 5001;

	SOCKET sockClient = socket(AF_INET,SOCK_STREAM,0);         // 
    SOCKADDR_IN addrSrv;
	addrSrv.sin_family = AF_INET;                              // 
	addrSrv.sin_addr.S_un.S_addr = inet_addr(ip);              // IP 
	addrSrv.sin_port = htons(port);                            // 

	if(connect(sockClient,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR)) < 0)
	{
		printf("connect failed
");
		return 1;
	}

	char recvBuf[100];
	recv(sockClient,recvBuf,100,0);  // 
	printf("%s
",recvBuf);          // 
	send(sockClient, "hello seu!", strlen("hello seu!") + 1, 0); // 
	Sleep(5000);
	closesocket(sockClient);         // 

    WSACleanup();
	return 0;
}