void __fastcall UDPRequestProcess(const char *OriginalSend, const size_t SendSize, const SOCKET_DATA &LocalSocketData, const uint16_t Protocol)
{
//Multi requesting.
if (Parameter.AlternateMultiRequest || Parameter.MultiRequestTimes > 1U)
UDPRequestMulti(OriginalSend, SendSize, &LocalSocketData, Protocol);
//Normal requesting
else
UDPRequest(OriginalSend, SendSize, &LocalSocketData, Protocol);
//Fin TCP request connection.
if (Protocol == IPPROTO_TCP && LocalSocketData.Socket != INVALID_SOCKET)
{
shutdown(LocalSocketData.Socket, SD_BOTH);
closesocket(LocalSocketData.Socket);
}
return;
}
void __fastcall UDPRequestProcess(
const DNS_PACKET_DATA &Packet,
const SOCKET_DATA &LocalSocketData)
{
//EDNS switching(Part 1)
size_t EDNS_SwitchLength = Packet.Length;
uint16_t EDNS_Packet_Flags = ((dns_hdr *)(Packet.Buffer))->Flags;
if (Parameter.EDNS_Label && !Parameter.EDNS_Switch.EDNS_UDP)
{
//Reset EDNS flags, resource record counts and packet length.
((dns_hdr *)(Packet.Buffer))->Flags = htons(ntohs(((dns_hdr *)(Packet.Buffer))->Flags) & (~DNS_GET_BIT_AD));
((dns_hdr *)(Packet.Buffer))->Flags = htons(ntohs(((dns_hdr *)(Packet.Buffer))->Flags) & (~DNS_GET_BIT_CD));
if (((dns_hdr *)(Packet.Buffer))->Additional > 0)
((dns_hdr *)(Packet.Buffer))->Additional = htons(ntohs(((dns_hdr *)(Packet.Buffer))->Additional) - 1U);
EDNS_SwitchLength -= Packet.EDNS_Record;
}
//Multi request process
if (Parameter.AlternateMultiRequest || Parameter.MultiRequestTimes > 1U)
UDPRequestMulti(Packet.Buffer, EDNS_SwitchLength, &LocalSocketData, Packet.Protocol);
//Normal request process
else
UDPRequest(Packet.Buffer, EDNS_SwitchLength, &LocalSocketData, Packet.Protocol);
//Fin TCP request connection.
if (Packet.Protocol == IPPROTO_TCP && SocketSetting(LocalSocketData.Socket, SOCKET_SETTING_INVALID_CHECK, false, nullptr))
{
shutdown(LocalSocketData.Socket, SD_BOTH);
closesocket(LocalSocketData.Socket);
}
//EDNS switching(Part 2)
if (Parameter.EDNS_Label && !Parameter.EDNS_Switch.EDNS_UDP)
{
((dns_hdr *)(Packet.Buffer))->Flags = EDNS_Packet_Flags;
((dns_hdr *)(Packet.Buffer))->Additional = htons(ntohs(((dns_hdr *)(Packet.Buffer))->Additional) + 1U);
}
return;
}