recv.cpp

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#include <afx.h>
#include <winsock2.h>
//#pragma Comment(lib,"ws2_32")

int main()
{
	WORD wVersionRequested;
	WSADATA wsaData;
	int err;
 
	wVersionRequested = MAKEWORD( 2, 2 );
 
	err = WSAStartup( wVersionRequested, &wsaData );
	if ( err != 0 ) {
		/* Tell the user that we could not find a usable */
		/* WinSock DLL.                                  */
		return 0;
	}
 
	/* Confirm that the WinSock DLL supports 2.2.*/
	/* Note that if the DLL supports versions greater    */
	/* than 2.2 in addition to 2.2, it will still return */
	/* 2.2 in wVersion since that is the version we      */
	/* requested.                                        */
 
	if ( LOBYTE( wsaData.wVersion ) != 2 ||
			HIBYTE( wsaData.wVersion ) != 2 ) {
		/* Tell the user that we could not find a usable */
		/* WinSock DLL.                                  */
		WSACleanup( );
		return 0; 
}
	SOCKET socket1;
	sockaddr_in add;
	sockaddr_in cadd;
	add.sin_addr.S_un.S_addr=htonl(INADDR_ANY);
	add.sin_family=AF_INET;
	add.sin_port=htons(60000);
	socket1=socket(AF_INET,SOCK_DGRAM,0);
	if(SOCKET_ERROR==bind(socket1,(SOCKADDR*)&add,sizeof(SOCKADDR)))
		MessageBox(NULL,"wanle",0,0);
	char  pbuff[100];
	memset(pbuff,0,100);
	//CString str;
	int len=sizeof(SOCKADDR);
	while(1)
	{
	 recvfrom(socket1,pbuff,100,0,(SOCKADDR*)&cadd,&len);
	::MessageBox(NULL, pbuff,0,MB_ICONINFORMATION );}
	return 0;
}