mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-14 08:50:58 +00:00
860 lines
17 KiB
C
860 lines
17 KiB
C
/*
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net_main.c
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@description@
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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static __attribute__ ((used)) const char rcsid[] =
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"$Id$";
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include "QF/cbuf.h"
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#include "QF/cmd.h"
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#include "QF/cvar.h"
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#include "QF/msg.h"
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#include "QF/qargs.h"
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#include "QF/quakeio.h"
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#include "QF/sizebuf.h"
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#include "QF/sys.h"
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#include "netmain.h"
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#include "net_vcr.h"
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#include "../nq/include/host.h"
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#include "../nq/include/server.h"
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qsocket_t *net_activeSockets = NULL;
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qsocket_t *net_freeSockets = NULL;
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int net_numsockets = 0;
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qboolean tcpipAvailable = false;
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int net_hostport;
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int DEFAULTnet_hostport = 26000;
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char my_tcpip_address[NET_NAMELEN];
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static qboolean listening = false;
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qboolean slistInProgress = false;
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qboolean slistSilent = false;
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qboolean slistLocal = true;
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static double slistStartTime;
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static int slistLastShown;
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static void Slist_Send (void *);
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static void Slist_Poll (void *);
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PollProcedure slistSendProcedure = { NULL, 0.0, Slist_Send };
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PollProcedure slistPollProcedure = { NULL, 0.0, Slist_Poll };
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static sizebuf_t _net_message_message;
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static qmsg_t _net_message = { 0, 0, &_net_message_message };
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qmsg_t *net_message = &_net_message;
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int net_activeconnections = 0;
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int messagesSent = 0;
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int messagesReceived = 0;
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int unreliableMessagesSent = 0;
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int unreliableMessagesReceived = 0;
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cvar_t *net_messagetimeout;
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cvar_t *hostname;
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QFile *vcrFile;
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qboolean recording = false;
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// these two macros are to make the code more readable
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#define sfunc net_drivers[sock->driver]
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#define dfunc net_drivers[net_driverlevel]
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int net_driverlevel;
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double net_time;
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double
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SetNetTime (void)
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{
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net_time = Sys_DoubleTime ();
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return net_time;
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}
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qsocket_t *
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NET_NewQSocket (void)
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{
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qsocket_t *sock;
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if (net_freeSockets == NULL)
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return NULL;
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if (net_activeconnections >= svs.maxclients)
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return NULL;
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// get one from free list
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sock = net_freeSockets;
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net_freeSockets = sock->next;
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// add it to active list
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sock->next = net_activeSockets;
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net_activeSockets = sock;
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sock->disconnected = false;
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sock->connecttime = net_time;
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strcpy (sock->address, "UNSET ADDRESS");
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sock->driver = net_driverlevel;
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sock->socket = 0;
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sock->driverdata = NULL;
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sock->canSend = true;
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sock->sendNext = false;
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sock->lastMessageTime = net_time;
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sock->ackSequence = 0;
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sock->sendSequence = 0;
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sock->unreliableSendSequence = 0;
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sock->sendMessageLength = 0;
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sock->receiveSequence = 0;
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sock->unreliableReceiveSequence = 0;
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sock->receiveMessageLength = 0;
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return sock;
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}
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void
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NET_FreeQSocket (qsocket_t *sock)
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{
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qsocket_t *s;
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// remove it from active list
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if (sock == net_activeSockets)
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net_activeSockets = net_activeSockets->next;
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else {
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for (s = net_activeSockets; s; s = s->next)
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if (s->next == sock) {
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s->next = sock->next;
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break;
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}
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if (!s)
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Sys_Error ("NET_FreeQSocket: not active");
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}
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// add it to free list
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sock->next = net_freeSockets;
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net_freeSockets = sock;
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sock->disconnected = true;
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}
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static void
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NET_Listen_f (void)
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{
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if (Cmd_Argc () != 2) {
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Sys_Printf ("\"listen\" is \"%u\"\n", listening ? 1 : 0);
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return;
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}
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listening = atoi (Cmd_Argv (1)) ? true : false;
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for (net_driverlevel = 0; net_driverlevel < net_numdrivers;
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net_driverlevel++) {
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if (net_drivers[net_driverlevel].initialized == false)
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continue;
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dfunc.Listen (listening);
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}
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}
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static void
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MaxPlayers_f (void)
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{
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int n;
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if (Cmd_Argc () != 2) {
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Sys_Printf ("\"maxplayers\" is \"%u\"\n", svs.maxclients);
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return;
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}
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if (sv.active) {
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Sys_Printf
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("maxplayers can not be changed while a server is running.\n");
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return;
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}
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n = atoi (Cmd_Argv (1));
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if (n < 1)
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n = 1;
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if (n > svs.maxclientslimit) {
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n = svs.maxclientslimit;
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Sys_Printf ("\"maxplayers\" set to \"%u\"\n", n);
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}
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if ((n == 1) && listening)
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Cbuf_AddText (host_cbuf, "listen 0\n");
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if ((n > 1) && (!listening))
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Cbuf_AddText (host_cbuf, "listen 1\n");
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svs.maxclients = n;
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if (n == 1)
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Cvar_Set (deathmatch, "0");
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else
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Cvar_Set (deathmatch, "1");
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}
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static void
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NET_Port_f (void)
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{
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int n;
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if (Cmd_Argc () != 2) {
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Sys_Printf ("\"port\" is \"%u\"\n", net_hostport);
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return;
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}
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n = atoi (Cmd_Argv (1));
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if (n < 1 || n > 65534) {
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Sys_Printf ("Bad value, must be between 1 and 65534\n");
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return;
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}
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DEFAULTnet_hostport = n;
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net_hostport = n;
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if (listening) {
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// force a change to the new port
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Cbuf_AddText (host_cbuf, "listen 0\n");
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Cbuf_AddText (host_cbuf, "listen 1\n");
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}
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}
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static void
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PrintSlistHeader (void)
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{
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Sys_Printf ("Server Map Users\n");
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Sys_Printf ("--------------- --------------- -----\n");
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slistLastShown = 0;
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}
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static void
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PrintSlist (void)
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{
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int n;
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for (n = slistLastShown; n < hostCacheCount; n++) {
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if (hostcache[n].maxusers)
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Sys_Printf ("%-15.15s %-15.15s %2u/%2u\n", hostcache[n].name,
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hostcache[n].map, hostcache[n].users,
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hostcache[n].maxusers);
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else
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Sys_Printf ("%-15.15s %-15.15s\n", hostcache[n].name,
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hostcache[n].map);
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}
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slistLastShown = n;
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}
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static void
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PrintSlistTrailer (void)
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{
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if (hostCacheCount)
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Sys_Printf ("== end list ==\n\n");
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else
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Sys_Printf ("No Quake servers found.\n\n");
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}
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static void
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NET_Slist_f (void)
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{
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if (slistInProgress)
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return;
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if (!slistSilent) {
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Sys_Printf ("Looking for Quake servers...\n");
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PrintSlistHeader ();
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}
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slistInProgress = true;
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slistStartTime = Sys_DoubleTime ();
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SchedulePollProcedure (&slistSendProcedure, 0.0);
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SchedulePollProcedure (&slistPollProcedure, 0.1);
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hostCacheCount = 0;
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}
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static void
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Slist_Send (void *unused)
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{
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for (net_driverlevel = 0; net_driverlevel < net_numdrivers;
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net_driverlevel++) {
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if (!slistLocal && net_driverlevel == 0)
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continue;
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if (net_drivers[net_driverlevel].initialized == false)
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continue;
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dfunc.SearchForHosts (true);
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}
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if ((Sys_DoubleTime () - slistStartTime) < 0.5)
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SchedulePollProcedure (&slistSendProcedure, 0.75);
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}
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static void
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Slist_Poll (void *unused)
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{
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for (net_driverlevel = 0; net_driverlevel < net_numdrivers;
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net_driverlevel++) {
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if (!slistLocal && net_driverlevel == 0)
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continue;
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if (net_drivers[net_driverlevel].initialized == false)
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continue;
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dfunc.SearchForHosts (false);
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}
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if (!slistSilent)
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PrintSlist ();
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if ((Sys_DoubleTime () - slistStartTime) < 1.5) {
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SchedulePollProcedure (&slistPollProcedure, 0.1);
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return;
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}
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if (!slistSilent)
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PrintSlistTrailer ();
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slistInProgress = false;
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slistSilent = false;
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slistLocal = true;
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}
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int hostCacheCount = 0;
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hostcache_t hostcache[HOSTCACHESIZE];
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qsocket_t *
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NET_Connect (const char *host)
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{
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qsocket_t *ret;
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int n;
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int numdrivers = net_numdrivers;
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SetNetTime ();
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if (host && *host == 0)
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host = NULL;
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if (host) {
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if (strcasecmp (host, "local") == 0) {
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numdrivers = 1;
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goto JustDoIt;
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}
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if (hostCacheCount) {
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for (n = 0; n < hostCacheCount; n++)
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if (strcasecmp (host, hostcache[n].name) == 0) {
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host = hostcache[n].cname;
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break;
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}
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if (n < hostCacheCount)
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goto JustDoIt;
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}
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}
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slistSilent = host ? true : false;
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NET_Slist_f ();
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while (slistInProgress)
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NET_Poll ();
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if (host == NULL) {
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if (hostCacheCount != 1)
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return NULL;
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host = hostcache[0].cname;
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Sys_Printf ("Connecting to...\n%s @ %s\n\n", hostcache[0].name, host);
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}
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if (hostCacheCount)
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for (n = 0; n < hostCacheCount; n++)
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if (strcasecmp (host, hostcache[n].name) == 0) {
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host = hostcache[n].cname;
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break;
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}
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JustDoIt:
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for (net_driverlevel = 0; net_driverlevel < numdrivers; net_driverlevel++) {
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if (net_drivers[net_driverlevel].initialized == false)
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continue;
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ret = dfunc.Connect (host);
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if (ret)
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return ret;
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}
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if (host) {
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Sys_Printf ("\n");
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PrintSlistHeader ();
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PrintSlist ();
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PrintSlistTrailer ();
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}
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return NULL;
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}
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struct {
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double time;
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int op;
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intptr_t session;
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} vcrConnect;
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qsocket_t *
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NET_CheckNewConnections (void)
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{
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qsocket_t *ret;
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SetNetTime ();
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for (net_driverlevel = 0; net_driverlevel < net_numdrivers;
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net_driverlevel++) {
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if (net_drivers[net_driverlevel].initialized == false)
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continue;
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if (net_driverlevel && listening == false)
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continue;
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ret = dfunc.CheckNewConnections ();
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if (ret) {
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if (recording) {
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vcrConnect.time = host_time;
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vcrConnect.op = VCR_OP_CONNECT;
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vcrConnect.session = (intptr_t) ret;
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Qwrite (vcrFile, &vcrConnect, sizeof (vcrConnect));
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Qwrite (vcrFile, ret->address, NET_NAMELEN);
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}
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return ret;
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}
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}
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if (recording) {
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vcrConnect.time = host_time;
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vcrConnect.op = VCR_OP_CONNECT;
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vcrConnect.session = 0;
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Qwrite (vcrFile, &vcrConnect, sizeof (vcrConnect));
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}
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return NULL;
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}
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void
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NET_Close (qsocket_t *sock)
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{
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if (!sock)
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return;
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if (sock->disconnected)
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return;
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SetNetTime ();
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// call the driver_Close function
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sfunc.Close (sock);
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NET_FreeQSocket (sock);
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}
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struct {
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double time;
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int op;
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intptr_t session;
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int ret;
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int len;
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} vcrGetMessage;
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int
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NET_GetMessage (qsocket_t *sock)
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{
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int ret;
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if (!sock)
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return -1;
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if (sock->disconnected) {
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Sys_Printf ("NET_GetMessage: disconnected socket\n");
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return -1;
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}
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SetNetTime ();
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ret = sfunc.QGetMessage (sock);
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// see if this connection has timed out
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if (ret == 0 && sock->driver) {
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if (net_time - sock->lastMessageTime > net_messagetimeout->value) {
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NET_Close (sock);
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return -1;
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}
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}
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if (ret > 0) {
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if (sock->driver) {
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sock->lastMessageTime = net_time;
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if (ret == 1)
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messagesReceived++;
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else if (ret == 2)
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unreliableMessagesReceived++;
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}
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if (recording) {
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vcrGetMessage.time = host_time;
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vcrGetMessage.op = VCR_OP_GETMESSAGE;
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vcrGetMessage.session = (intptr_t) sock;
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vcrGetMessage.ret = ret;
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vcrGetMessage.len = _net_message_message.cursize;
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Qwrite (vcrFile, &vcrGetMessage, 24);
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Qwrite (vcrFile, _net_message_message.data,
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_net_message_message.cursize);
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}
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} else {
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if (recording) {
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vcrGetMessage.time = host_time;
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vcrGetMessage.op = VCR_OP_GETMESSAGE;
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vcrGetMessage.session = (intptr_t) sock;
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vcrGetMessage.ret = ret;
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Qwrite (vcrFile, &vcrGetMessage, 20);
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}
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}
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return ret;
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}
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struct {
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double time;
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int op;
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intptr_t session;
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int r;
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} vcrSendMessage;
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int
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NET_SendMessage (qsocket_t *sock, sizebuf_t *data)
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{
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int r;
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if (!sock)
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return -1;
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if (sock->disconnected) {
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Sys_Printf ("NET_SendMessage: disconnected socket\n");
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return -1;
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}
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SetNetTime ();
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r = sfunc.QSendMessage (sock, data);
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if (r == 1 && sock->driver)
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messagesSent++;
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if (recording) {
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vcrSendMessage.time = host_time;
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vcrSendMessage.op = VCR_OP_SENDMESSAGE;
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vcrSendMessage.session = (intptr_t) sock;
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vcrSendMessage.r = r;
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Qwrite (vcrFile, &vcrSendMessage, 20);
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}
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return r;
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}
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int
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|
NET_SendUnreliableMessage (qsocket_t *sock, sizebuf_t *data)
|
|
{
|
|
int r;
|
|
|
|
if (!sock)
|
|
return -1;
|
|
|
|
if (sock->disconnected) {
|
|
Sys_Printf ("NET_SendMessage: disconnected socket\n");
|
|
return -1;
|
|
}
|
|
|
|
SetNetTime ();
|
|
r = sfunc.SendUnreliableMessage (sock, data);
|
|
if (r == 1 && sock->driver)
|
|
unreliableMessagesSent++;
|
|
|
|
if (recording) {
|
|
vcrSendMessage.time = host_time;
|
|
vcrSendMessage.op = VCR_OP_SENDMESSAGE;
|
|
vcrSendMessage.session = (intptr_t) sock;
|
|
vcrSendMessage.r = r;
|
|
Qwrite (vcrFile, &vcrSendMessage, 20);
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
|
|
qboolean
|
|
NET_CanSendMessage (qsocket_t *sock)
|
|
{
|
|
int r;
|
|
|
|
if (!sock)
|
|
return false;
|
|
|
|
if (sock->disconnected)
|
|
return false;
|
|
|
|
SetNetTime ();
|
|
|
|
r = sfunc.CanSendMessage (sock);
|
|
|
|
if (recording) {
|
|
vcrSendMessage.time = host_time;
|
|
vcrSendMessage.op = VCR_OP_CANSENDMESSAGE;
|
|
vcrSendMessage.session = (intptr_t) sock;
|
|
vcrSendMessage.r = r;
|
|
Qwrite (vcrFile, &vcrSendMessage, 20);
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
|
|
int
|
|
NET_SendToAll (sizebuf_t *data, double blocktime)
|
|
{
|
|
double start;
|
|
int i;
|
|
int count = 0;
|
|
qboolean state1[MAX_SCOREBOARD]; /* can we send */
|
|
qboolean state2[MAX_SCOREBOARD]; /* did we send */
|
|
|
|
for (i = 0, host_client = svs.clients; i < svs.maxclients;
|
|
i++, host_client++) {
|
|
if (host_client->netconnection && host_client->active) {
|
|
if (host_client->netconnection->driver == 0) {
|
|
NET_SendMessage (host_client->netconnection, data);
|
|
state1[i] = true;
|
|
state2[i] = true;
|
|
continue;
|
|
}
|
|
count++;
|
|
state1[i] = false;
|
|
state2[i] = false;
|
|
} else {
|
|
state1[i] = true;
|
|
state2[i] = true;
|
|
}
|
|
}
|
|
|
|
start = Sys_DoubleTime ();
|
|
while (count) {
|
|
count = 0;
|
|
for (i = 0, host_client = svs.clients; i < svs.maxclients;
|
|
i++, host_client++) {
|
|
if (!state1[i]) {
|
|
if (NET_CanSendMessage (host_client->netconnection)) {
|
|
state1[i] = true;
|
|
NET_SendMessage (host_client->netconnection, data);
|
|
} else {
|
|
NET_GetMessage (host_client->netconnection);
|
|
}
|
|
count++;
|
|
continue;
|
|
}
|
|
|
|
if (!state2[i]) {
|
|
if (NET_CanSendMessage (host_client->netconnection)) {
|
|
state2[i] = true;
|
|
} else {
|
|
NET_GetMessage (host_client->netconnection);
|
|
}
|
|
count++;
|
|
continue;
|
|
}
|
|
}
|
|
if ((Sys_DoubleTime () - start) > blocktime)
|
|
break;
|
|
}
|
|
return count;
|
|
}
|
|
|
|
|
|
//=============================================================================
|
|
|
|
void
|
|
NET_Init (void)
|
|
{
|
|
int i;
|
|
int controlSocket;
|
|
qsocket_t *s;
|
|
|
|
if (COM_CheckParm ("-playback")) {
|
|
net_numdrivers = 1;
|
|
net_drivers[0].Init = VCR_Init;
|
|
}
|
|
|
|
if (COM_CheckParm ("-record"))
|
|
recording = true;
|
|
|
|
i = COM_CheckParm ("-port");
|
|
if (!i)
|
|
i = COM_CheckParm ("-udpport");
|
|
if (!i)
|
|
i = COM_CheckParm ("-ipxport");
|
|
|
|
if (i) {
|
|
if (i < com_argc - 1)
|
|
DEFAULTnet_hostport = atoi (com_argv[i + 1]);
|
|
else
|
|
Sys_Error ("NET_Init: you must specify a number after -port");
|
|
}
|
|
net_hostport = DEFAULTnet_hostport;
|
|
|
|
if (COM_CheckParm ("-listen") || cls.state == ca_dedicated)
|
|
listening = true;
|
|
net_numsockets = svs.maxclientslimit;
|
|
if (cls.state != ca_dedicated)
|
|
net_numsockets++;
|
|
|
|
SetNetTime ();
|
|
|
|
for (i = 0; i < net_numsockets; i++) {
|
|
s = (qsocket_t *) Hunk_AllocName (sizeof (qsocket_t), "qsocket");
|
|
s->next = net_freeSockets;
|
|
net_freeSockets = s;
|
|
s->disconnected = true;
|
|
}
|
|
|
|
// allocate space for network message buffer
|
|
SZ_Alloc (&_net_message_message, NET_MAXMESSAGE);
|
|
|
|
net_messagetimeout =
|
|
Cvar_Get ("net_messagetimeout", "300", CVAR_NONE, NULL, "None");
|
|
hostname = Cvar_Get ("hostname", "UNNAMED", CVAR_NONE, NULL, "None");
|
|
|
|
Cmd_AddCommand ("slist", NET_Slist_f, "No Description");
|
|
Cmd_AddCommand ("listen", NET_Listen_f, "No Description");
|
|
Cmd_AddCommand ("maxplayers", MaxPlayers_f, "No Description");
|
|
Cmd_AddCommand ("port", NET_Port_f, "No Description");
|
|
|
|
// initialize all the drivers
|
|
for (net_driverlevel = 0; net_driverlevel < net_numdrivers;
|
|
net_driverlevel++) {
|
|
controlSocket = net_drivers[net_driverlevel].Init ();
|
|
if (controlSocket == -1)
|
|
continue;
|
|
net_drivers[net_driverlevel].initialized = true;
|
|
net_drivers[net_driverlevel].controlSock = controlSocket;
|
|
if (listening)
|
|
net_drivers[net_driverlevel].Listen (true);
|
|
}
|
|
|
|
if (*my_tcpip_address)
|
|
Sys_MaskPrintf (SYS_NET, "TCP/IP address %s\n", my_tcpip_address);
|
|
}
|
|
|
|
void
|
|
NET_Shutdown (void)
|
|
{
|
|
qsocket_t *sock;
|
|
|
|
SetNetTime ();
|
|
|
|
for (sock = net_activeSockets; sock; sock = sock->next)
|
|
NET_Close (sock);
|
|
|
|
//
|
|
// shutdown the drivers
|
|
//
|
|
for (net_driverlevel = 0; net_driverlevel < net_numdrivers;
|
|
net_driverlevel++) {
|
|
if (net_drivers[net_driverlevel].initialized == true) {
|
|
net_drivers[net_driverlevel].Shutdown ();
|
|
net_drivers[net_driverlevel].initialized = false;
|
|
}
|
|
}
|
|
|
|
if (vcrFile) {
|
|
Sys_Printf ("Closing vcrfile.\n");
|
|
Qclose (vcrFile);
|
|
}
|
|
}
|
|
|
|
|
|
static PollProcedure *pollProcedureList = NULL;
|
|
|
|
void
|
|
NET_Poll (void)
|
|
{
|
|
PollProcedure *pp;
|
|
|
|
SetNetTime ();
|
|
|
|
for (pp = pollProcedureList; pp; pp = pp->next) {
|
|
if (pp->nextTime > net_time)
|
|
break;
|
|
pollProcedureList = pp->next;
|
|
pp->procedure (pp->arg);
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
SchedulePollProcedure (PollProcedure *proc, double timeOffset)
|
|
{
|
|
PollProcedure *pp, *prev;
|
|
|
|
proc->nextTime = Sys_DoubleTime () + timeOffset;
|
|
for (pp = pollProcedureList, prev = NULL; pp; pp = pp->next) {
|
|
if (pp->nextTime >= proc->nextTime)
|
|
break;
|
|
prev = pp;
|
|
}
|
|
|
|
if (prev == NULL) {
|
|
proc->next = pollProcedureList;
|
|
pollProcedureList = proc;
|
|
return;
|
|
}
|
|
|
|
proc->next = pp;
|
|
prev->next = proc;
|
|
}
|