Защита Counter Strike Сервера

qboolean Netchan_CopyNormalFragments(netchan_t *pNetchan) {
	if (!pNetchan->incomingready[FRAG_NORMAL_STREAM]) {
		return false;
	}

	if (!pNetchan->incomingbufs[FRAG_NORMAL_STREAM]) {
		Con_Printf("Netchan_CopyNormalFragments:  Called with no fragments readied\n");

		pNetchan->incomingready[FRAG_NORMAL_STREAM] = false;

		return false;
	}

	SZ_Clear(&net_message);
	MSG_BeginReading();

	fragbuf_t *pFragBuf = pNetchan->incomingbufs[FRAG_NORMAL_STREAM];

	while (pFragBuf) {
		fragbuf_t *pFragBufNext = pFragBuf->next;

		if (net_message.m_nCurSize + pFragBuf->frag_message.m_nCurSize > net_message.m_nMaxSize) {
			pNetchan->incomingbufs[FRAG_NORMAL_STREAM] = pFragBuf;

			SV_BroadcastPrintf("%s net message overflowed\n", ((client_t *)pNetchan->GetFragSize_param)->m_szPlayerName);
			Con_Printf("WARNING: net message overflow for %s\n", ((client_t *)pNetchan->GetFragSize_param)->m_szPlayerName);
			SV_DropClient(pNetchan->GetFragSize_param, false, "Net message overflow");

			return false;
		}

		SZ_Write(&net_message, pFragBuf->frag_message.m_pData, pFragBuf->frag_message.m_nCurSize);
		Mem_Free(pFragBuf);

		pFragBuf = pFragBufNext;
	}

	char *pszCheck = net_message.m_pData;

	if (pszCheck[0] == 'B' && pszCheck[1] == 'Z' && pszCheck[2] == '2' && pszCheck[3] == '\0') {
		char szMsg[65536];
		unsigned int uiDestLen = sizeof(szMsg);

		BZ2_bzBuffToBuffDecompress(szMsg, &uiDestLen, net_message.m_pData + 4, net_message.m_nCurSize - 4, 1, 0);

		memcpy(net_message.m_pData, szMsg, uiDestLen);
		net_message.m_nCurSize = uiDestLen;
	}

	pNetchan->incomingbufs[FRAG_NORMAL_STREAM] = NULL;
	pNetchan->incomingready[FRAG_NORMAL_STREAM] = false;

	return true;
}