broadsocket.h

组播发送测试网络程序,客户端

// BroadSocket.h: interface for the CBroadSocket class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_BROADSOCKET_H__94E78B57_8D7E_4807_980E_6CE06BB1294A__INCLUDED_)
#define AFX_BROADSOCKET_H__94E78B57_8D7E_4807_980E_6CE06BB1294A__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#include <winsock2.h>
#define UDP_BUF_LEN 128*1024
class CBroadSocket  
{
public:
	int StartUp(long lport);
	int RecvData(LPVOID lpBuf, int iSize);
	SOCKET GetSocket();
	int SendData(LPVOID lpBuf, int iSize);
	void Close();
	int CreateSocket(unsigned long dwSelfIPAddr,short sPort);
	CBroadSocket();
	virtual ~CBroadSocket();
	struct sockaddr*	GetMyAddr(){return (struct sockaddr*)&m_MyAddr;}	//取本地IP
	struct sockaddr*	GetTheirAddr(){return (struct sockaddr*)&m_TheirAddr;}//取目标IP

private:
		SOCKET	m_sSocket;
		SOCKADDR_IN	 m_MyAddr,m_TheirAddr;
        struct sockaddr_in from; 
		int fromlen ;
};

#endif // !defined(AFX_BROADSOCKET_H__94E78B57_8D7E_4807_980E_6CE06BB1294A__INCLUDED_)