c++魔术包唤醒电脑

最新推荐文章于 2024-09-04 09:15:54 发布

Ambition_ZB

最新推荐文章于 2024-09-04 09:15:54 发布

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分类专栏： C++

本文链接：https://blog.youkuaiyun.com/u013183287/article/details/89351976

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bool api_computer_start(CString strMac)
{
	WSADATA wsa;
	if (WSAStartup(MAKEWORD(1, 1), &wsa) != 0)
		return false;

	strMac.MakeUpper();
	SOCKET sockClient = socket(AF_INET, SOCK_DGRAM, 0);

	SOCKADDR_IN addrSrv;
	addrSrv.sin_family = AF_INET;

	BOOL bBroadCast = TRUE;
	USES_CONVERSION;
	const char* szTemp = NULL;
	addrSrv.sin_port = htons(9090);
	setsockopt(sockClient, SOL_SOCKET, SO_BROADCAST, (const char*)&bBroadCast, sizeof(BOOL));
	addrSrv.sin_addr.s_addr = htonl(INADDR_BROADCAST);

	CStringArray ar;
	splitstring(strMac, ar, _T("-"));

	//Magic Packet (魔术包)6个FF是数据的开始,紧跟着16次MAC地址就可以了
	LPBYTE mac = new BYTE[6];
	for (int i = 0; i < 6; i++)
	{
		int nValue = 0;
		swscanf_s(ar[i], _T("%x"), &nValue);
		mac[i] = (BYTE)nValue;
	}

	int nSendSize = 17 * 6;
	LPBYTE buf = new BYTE[nSendSize];
	for (int i = 0; i < 6; i++)
		buf[i] = 0xFF;
	for (int i = 1; i <= 16; i++)
		for (int j = 0; j < 6; j++)
			buf[i * 6 + j] = mac[j];

	delete mac;
	int nReturn = sendto(sockClient, (char *)buf, nSendSize, 0, (SOCKADDR*)&addrSrv, sizeof(SOCKADDR));
	delete buf;
	return nSendSize == nReturn;
}