for purposes of better compatibility with proquake servers, darkplaces

[xonotic/darkplaces.git] / netconn.c

diff --git a/netconn.c b/netconn.c
index 2c1d03ee3b48492954d95257814c7cd38dae8362..3253b7989109115f0a162c91f9d6f6a8a140d984 100755 (executable)
--- a/netconn.c
+++ b/netconn.c
@@ -2037,6 +2037,21 @@ static int NetConn_ClientParsePacket(lhnetsocket_t *mysocket, unsigned char *dat
                                lhnetaddress_t clientportaddress;
                                clientportaddress = *peeraddress;
                                LHNETADDRESS_SetPort(&clientportaddress, MSG_ReadLong());
+                               // extra ProQuake stuff
+                               if (length >= 6)
+                                       cls.proquake_servermod = MSG_ReadByte(); // MOD_PROQUAKE
+                               else
+                                       cls.proquake_servermod = 0;
+                               if (length >= 7)
+                                       cls.proquake_serverversion = MSG_ReadByte(); // version * 10
+                               else
+                                       cls.proquake_serverversion = 0;
+                               if (length >= 8)
+                                       cls.proquake_serverflags = MSG_ReadByte(); // flags (mainly PQF_CHEATFREE)
+                               else
+                                       cls.proquake_serverflags = 0;
+                               if (cls.proquake_servermod == 1)
+                                       Con_Printf("Connected to ProQuake %.1f server, enabling precise aim\n", cls.proquake_serverversion / 10.0f);
                                // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command)
                                InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2);
                                M_Update_Return_Reason("Accepted");
@@ -2217,6 +2232,15 @@ void NetConn_ClientFrame(void)
                MSG_WriteByte(&net_message, CCREQ_CONNECT);
                MSG_WriteString(&net_message, "QUAKE");
                MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
+               // extended proquake stuff
+               MSG_WriteByte(&net_message, 1); // mod = MOD_PROQUAKE
+               // this version matches ProQuake 3.40, the first version to support
+               // the NAT fix, and it only supports the NAT fix for ProQuake 3.40 or
+               // higher clients, so we pretend we are that version...
+               MSG_WriteByte(&net_message, 34); // version * 10
+               MSG_WriteByte(&net_message, 0); // flags
+               MSG_WriteLong(&net_message, 0); // password
+               // write the packetsize now...
                StoreBigLong(net_message.data, NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
                NetConn_Write(cls.connect_mysocket, net_message.data, net_message.cursize, &cls.connect_address);
                SZ_Clear(&net_message);