#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include "i_system.h"
#include "d_event.h"
#include "d_net.h"
#include "m_argv.h"
#include "doomstat.h"
#include "i_net.h"
#ifndef B_HOST_IS_LENDIAN
#define B_HOST_IS_LENDIAN 1
#endif
#if !defined(sparc) && B_HOST_IS_LENDIAN
#ifndef ntohl
#define ntohl(x) \
((unsigned long int)((((unsigned long int)(x) & 0x000000ffU) << 24) | \
(((unsigned long int)(x) & 0x0000ff00U) << 8) | \
(((unsigned long int)(x) & 0x00ff0000U) >> 8) | \
(((unsigned long int)(x) & 0xff000000U) >> 24)))
#endif
#ifndef ntohs
#define ntohs(x) \
((unsigned short int)((((unsigned short int)(x) & 0x00ff) << 8) | \
(((unsigned short int)(x) & 0xff00) >> 8)))
#endif
#ifndef htonl
#define htonl(x) ntohl(x)
#endif
#ifndef htons
#define htons(x) ntohs(x)
#endif
#endif
void NetSend (void);
int NetListen (void);
//
// NETWORKING
//
#ifndef IPPORT_USERRESERVED
#define IPPORT_USERRESERVED 5000
#endif
int DOOMPORT = (IPPORT_USERRESERVED+0x1d);
int sendsocket[MAXNETNODES];
int insocket;
void (*netget) (void);
void (*netsend) (void);
static int first_user_port=IPPORT_USERRESERVED+0x1D+0x10;
int GetAvailPort(void)
{
int i,d0;
//for(i=0;i<1024;i++)
//{
// __asm__ __volatile__(
// "int $0x40"
// :"=a"(d0)
// :"0"(53),"b"(9),"c"(first_user_port+i));
// if(d0==1) return i+first_user_port;
//}
I_Error("Unable to get new port\n");
return -1;
}
int CreateInputUDPsocket(void)
{
int d0;
//__asm__ __volatile__(
// "int $0x40"
// :"=a"(d0)
// :"0"(53),"b"(1),"c"(DOOMPORT),"d"(0),"S"(0));
//if(d0==0xffffffff)
//{
I_Error("Unable to create socket\n");
//}
return d0;
}
int CreateOutputUDPSocket(int remote_ip)
{
int d0;
int p;
// p=GetAvailPort();
// __asm__ __volatile__(
// "int $0x40"
// :"=a"(d0)
// :"0"(53),"b"(0),"c"(p),"d"(DOOMPORT),"S"(remote_ip));
// if(d0==0xffffffff)
// {
I_Error("Unable to create output socket\n");
// }
return d0;
}
//
// PacketSend
//
void PacketSend (void)
{
int c;
doomdata_t sw;
// byte swap
sw.checksum = htonl(netbuffer->checksum);
sw.player = netbuffer->player;
sw.retransmitfrom = netbuffer->retransmitfrom;
sw.starttic = netbuffer->starttic;
sw.numtics = netbuffer->numtics;
for (c=0 ; c< netbuffer->numtics ; c++)
{
sw.cmds[c].forwardmove = netbuffer->cmds[c].forwardmove;
sw.cmds[c].sidemove = netbuffer->cmds[c].sidemove;
sw.cmds[c].angleturn = htons(netbuffer->cmds[c].angleturn);
sw.cmds[c].consistancy = htons(netbuffer->cmds[c].consistancy);
sw.cmds[c].chatchar = netbuffer->cmds[c].chatchar;
sw.cmds[c].buttons = netbuffer->cmds[c].buttons;
}
// __libclog_printf("Sending packet %u to node %u\n",gametic,
// doomcom->remotenode);
// __asm__ __volatile__(
// "int $0x40"
// :"=a"(c)
// :"0"(53),"b"(4),"c"(sendsocket[doomcom->remotenode]),
// "d"(doomcom->datalength),"S"((long)&sw));
// if(c==-1)
// {
// __libclog_printf("Unable to send packet to remote node\n");
// }
}
//
// PacketGet
//
void PacketGet (void)
{
}
int GetLocalAddress (void)
{
int d0;
// __asm__ __volatile__(
// "int $0x40"
// :"=a"(d0)
// :"0"(52),"b"(1));
return d0;
}
//
// I_InitNetwork
//
void I_InitNetwork (void)
{
boolean trueval = true;
int i;
int p;
doomcom
= malloc (sizeof (*doomcom
) ); memset (doomcom
, 0, sizeof(*doomcom
) );
// set up for network
i = M_CheckParm ("-dup");
if (i && i< myargc-1)
{
doomcom->ticdup = myargv[i+1][0]-'0';
if (doomcom->ticdup < 1)
doomcom->ticdup = 1;
if (doomcom->ticdup > 9)
doomcom->ticdup = 9;
}
else
doomcom-> ticdup = 1;
if (M_CheckParm ("-extratic"))
doomcom-> extratics = 1;
else
doomcom-> extratics = 0;
p = M_CheckParm ("-port");
if (p && p<myargc-1)
{
DOOMPORT
= atoi (myargv
[p
+1]);// __libclog_printf ("using alternate port %i\n",DOOMPORT);
}
// parse network game options,
// -net <consoleplayer> <host> <host> ...
i = M_CheckParm ("-net");
if (!i)
{
// single player game
netgame = false;
doomcom->id = DOOMCOM_ID;
doomcom->numplayers = doomcom->numnodes = 1;
doomcom->deathmatch = false;
doomcom->consoleplayer = 0;
return;
}
netsend = PacketSend;
netget = PacketGet;
netgame = true;
// parse player number and host list
doomcom->consoleplayer = myargv[i+1][0]-'1';
doomcom->numnodes = 1; // this node for sure
doomcom->id = DOOMCOM_ID;
doomcom->numplayers = doomcom->numnodes;
sendsocket[0]=0;
for(i=1;i<MAXNETNODES;i++)
{
sendsocket[i]=-1;
}
insocket=CreateInputUDPsocket();
// __libclog_printf("DOOM: Input UDP socket is %d\n",insocket);
}
void I_NetCmd (void)
{
if (doomcom->command == CMD_SEND)
{
netsend ();
}
else if (doomcom->command == CMD_GET)
{
netget ();
}
else
I_Error ("Bad net cmd: %i\n",doomcom->command);
}