ddnet/src/ping/ping.cpp

#include <iostream>
#include <base/system.h>
#include <base/math.h>
#include <mastersrv/mastersrv.h>
#include <engine/shared/network.h>
#include <engine/shared/packer.h>

static CNetClient g_NetOp; // main

int main(int argc, char **argv) // ignore_convention
{
	NETADDR BindAddr;
	BindAddr.type = NETTYPE_ALL;
	g_NetOp.Open(BindAddr, 0);

	if(argc != 2)
	{
		dbg_msg("ping", "wrong parameters");
		return 1;
	}

	NETADDR Addr;
	if (net_host_lookup(argv[1], &Addr, NETTYPE_ALL))
	{
		dbg_msg("ping", "host lookup failed");
		return 1;
	}

	unsigned char Buffer[sizeof(SERVERBROWSE_GETINFO)+1];
	CNetChunk Packet;

	mem_copy(Buffer, SERVERBROWSE_GETINFO, sizeof(SERVERBROWSE_GETINFO));

	int CurToken = rand() % 256;
	Buffer[sizeof(SERVERBROWSE_GETINFO)] = CurToken;

	Packet.m_ClientID = -1;
	Packet.m_Address = Addr;
	Packet.m_Flags = NETSENDFLAG_CONNLESS;
	Packet.m_DataSize = sizeof(Buffer);
	Packet.m_pData = Buffer;

	g_NetOp.Send(&Packet);

	int64 startTime = time_get();

	net_socket_read_wait(g_NetOp.m_Socket, 1000000);

	g_NetOp.Update();

	while(g_NetOp.Recv(&Packet))
	{
		if(Packet.m_DataSize >= (int)sizeof(SERVERBROWSE_INFO) && mem_comp(Packet.m_pData, SERVERBROWSE_INFO, sizeof(SERVERBROWSE_INFO)) == 0)
		{
			// we got ze info
			CUnpacker Up;

			Up.Reset((unsigned char*)Packet.m_pData+sizeof(SERVERBROWSE_INFO), Packet.m_DataSize-sizeof(SERVERBROWSE_INFO));
			int Token = str_toint(Up.GetString());
			if(Token != CurToken)
				continue;

			int64 endTime = time_get();
			std::cout << (double)(endTime - startTime) / 1000 << " ms" << std::endl;
		}
	}
}