DOOM/ipx/IPXSETUP.C

// ipxsetup.c

#define DOOM2

#include <conio.h>
#include <stdio.h>
#include <stdlib.h>
#include <dos.h>
#include <string.h>
#include <process.h>
#include <stdarg.h>
#include <bios.h>

#include "ipxnet.h"
//#include "ipxstr.h"
#include "ipx_frch.h"	// FRENCH VERSION

int gameid;
int numnetnodes;
int socketid = 0x869c;        // 0x869c is the official DOOM socket
int	myargc;
char **myargv;

setupdata_t    nodesetup[MAXNETNODES];


/*
=================
=
= Error
=
= For abnormal program terminations
=
=================
*/

void Error (char *error, ...)
{
     va_list argptr;

     if (vectorishooked)
          setvect (doomcom.intnum,olddoomvect);

     va_start (argptr,error);
     vprintf (error,argptr);
     va_end (argptr);
	 printf ("\n");
     ShutdownNetwork ();
     exit (1);
}


/*
=================
=
= CheckParm
=
= Checks for the given parameter in the program's command line arguments
=
= Returns the argument number (1 to argc-1) or 0 if not present
=
=================
*/

int CheckParm(char *parm)
     {
     int i;

	 for(i = 1; i < myargc; i++)
		  if(stricmp(parm, myargv[i]) == 0)
               return i;

     return 0;
     }


/*
=============
=
= NetISR
=
=============
*/

void interrupt NetISR (void)
{
     if (doomcom.command == CMD_SEND)
     {
          localtime++;
          SendPacket (doomcom.remotenode);
     }
	 else if (doomcom.command == CMD_GET)
     {
          GetPacket ();
     }
}



/*
===================
=
= LookForNodes
=
= Finds all the nodes for the game and works out player numbers among 
them
=
= Exits with nodesetup[0..numnodes] and nodeadr[0..numnodes] filled in
===================
*/

void LookForNodes (void)
{
     int             i,j,k;
     int             netids[MAXNETNODES];
     int             netplayer[MAXNETNODES];
	 struct time         time;
     int                 oldsec;
     setupdata_t         *setup, *dest;
     char           str[80];
     int            total, console;

//
// wait until we get [numnetnodes] packets, then start playing
// the playernumbers are assigned by netid
//
	 printf(STR_ATTEMPT, numnetnodes);

	 printf (STR_LOOKING);

     oldsec = -1;
     setup = (setupdata_t *)&doomcom.data;
     localtime = -1;          // in setup time, not game time

//
// build local setup info
//
     nodesetup[0].nodesfound = 1;
	 nodesetup[0].nodeswanted = numnetnodes;
     doomcom.numnodes = 1;

     do
     {
//
// check for aborting
//
          while ( bioskey(1) )
          {
               if ( (bioskey (0) & 0xff) == 27)
					Error ("\n\n"STR_NETABORT);
		  }

//
// listen to the network
//
		  while (GetPacket ())
		  {
			   if (doomcom.remotenode == -1)
					dest = &nodesetup[doomcom.numnodes];
			   else
					dest = &nodesetup[doomcom.remotenode];

			   if (remotetime != -1)
			   {    // an early game packet, not a setup packet
					if (doomcom.remotenode == -1)
			 Error (STR_UNKNOWN);
			// if it allready started, it must have found all nodes
		    dest->nodesfound = dest->nodeswanted;
		    continue;
	       }

	       // update setup ingo
	       memcpy (dest, setup, sizeof(*dest) );

	       if (doomcom.remotenode != -1)
		    continue;           // allready know that node address

	       //
	       // this is a new node
	       //
		   memcpy (&nodeadr[doomcom.numnodes], &remoteadr
               , sizeof(nodeadr[doomcom.numnodes]) );

               //
               // if this node has a lower address, take all startup info
               //
               if ( memcmp (&remoteadr, &nodeadr[0], sizeof(&remoteadr) ) 
< 0 )
               {
               }

               doomcom.numnodes++;

			   printf ("\n"STR_FOUND"\n");

               if (doomcom.numnodes < numnetnodes)
					printf (STR_LOOKING);
          }
//
// we are done if all nodes have found all other nodes
//
          for (i=0 ; i<doomcom.numnodes ; i++)
               if (nodesetup[i].nodesfound != nodesetup[i].nodeswanted)
                    break;

		  if (i == nodesetup[0].nodeswanted)
			   break;         // got them all

//
// send out a broadcast packet every second
//
		  gettime (&time);
		  if (time.ti_sec == oldsec)
			   continue;
		  oldsec = time.ti_sec;

		  printf (".");
		  doomcom.datalength = sizeof(*setup);

		  nodesetup[0].nodesfound = doomcom.numnodes;

		  memcpy (&doomcom.data, &nodesetup[0], sizeof(*setup));

		  SendPacket (MAXNETNODES);     // send to all

	 } while (1);

//
// count players
//
	 total = 0;
	 console = 0;

     for (i=0 ; i<numnetnodes ; i++)
     {
          if (nodesetup[i].drone)
               continue;
          total++;
          if (total > MAXPLAYERS)
			   Error (STR_MORETHAN,MAXPLAYERS);
          if (memcmp (&nodeadr[i], &nodeadr[0], sizeof(nodeadr[0])) < 0)
               console++;
     }


     if (!total)
		  Error (STR_NONESPEC);

	 doomcom.consoleplayer = console;
	 doomcom.numplayers = total;

	 printf (STR_CONSOLEIS"\n", console+1, total);
}


//========================================================
//
//	Find a Response File
//
//========================================================
void FindResponseFile (void)
{
	int		i;
	#define	MAXARGVS	100

	for (i = 1;i < myargc;i++)
		if (myargv[i][0] == '@')
		{
			FILE *		handle;
			int		size;
			int		k;
			int		index;
			int		indexinfile;
			char	*infile;
			char	*file;
			char	*moreargs[20];
			char	*firstargv;

			// READ THE RESPONSE FILE INTO MEMORY
			handle = fopen (&myargv[i][1],"rb");
			if (!handle)
				Error (STR_NORESP);
			printf(STR_FOUNDRESP" \"%s\"!\n",strupr(&myargv[i][1]));
			fseek (handle,0,SEEK_END);
			size = ftell(handle);
			fseek (handle,0,SEEK_SET);
			file = malloc (size);
			fread (file,size,1,handle);
			fclose (handle);

			// KEEP ALL CMDLINE ARGS FOLLOWING @RESPONSEFILE ARG
			for (index = 0,k = i+1; k < myargc; k++)
				moreargs[index++] = myargv[k];

			firstargv = myargv[0];
			myargv = malloc(sizeof(char *)*MAXARGVS);
			memset(myargv,0,sizeof(char *)*MAXARGVS);
			myargv[0] = firstargv;

			infile = file;
			indexinfile = k = 0;
			indexinfile++;	// SKIP PAST ARGV[0] (KEEP IT)
			do
			{
				myargv[indexinfile++] = infile+k;
				while(k < size &&
					((*(infile+k)>= ' '+1) && (*(infile+k)<='z')))
					k++;
				*(infile+k) = 0;
				while(k < size &&
					((*(infile+k)<= ' ') || (*(infile+k)>'z')))
					k++;
			} while(k < size);

			for (k = 0;k < index;k++)
				myargv[indexinfile++] = moreargs[k];
			myargc = indexinfile;

			// DISPLAY ARGS
//			printf("%d command-line args:\n",myargc);
//			for (k=1;k<myargc;k++)
//				printf("%s\n",myargv[k]);

			break;
		}
}


/*
=============
=
= main
=
=============
*/

void main (void)
	 {
	 int  i;
	 unsigned char far *vector;

//
// determine game parameters
//
	 gameid = 0;
	 numnetnodes = 2;
	 doomcom.ticdup = 1;
	 doomcom.extratics = 1;
	 doomcom.episode = 1;
	 doomcom.map = 1;
	 doomcom.skill = 2;
	 doomcom.deathmatch = 0;

	 printf("\n"
			 "-----------------------------\n"
	 #ifdef DOOM2
			 STR_DOOMNETDRV"\n"
	 #else
			 "DOOM NETWORK DEVICE DRIVER\n"
	 #endif
			 "v1.22\n"
			 "-----------------------------\n");

	 myargc = _argc;
	 myargv = _argv;
	 FindResponseFile();

	 if((i = CheckParm("-nodes")) != 0)
		  numnetnodes = atoi(myargv[i+1]);

	 if((i = CheckParm("-vector")) != 0)
		  {
		  doomcom.intnum = sscanf ("0x%x",myargv[i+1]);
		  vector = *(char far * far *)(doomcom.intnum*4);
		  if(vector != NULL && *vector != 0xcf)
			   {
		   printf(STR_VECTSPEC"\n", doomcom.intnum);
			   exit(-1);
			   }
		  }
	 else
		  {
		  for(doomcom.intnum = 0x60 ; doomcom.intnum <= 0x66 ;
doomcom.intnum++)
			   {
			   vector = *(char far * far *)(doomcom.intnum*4);
			   if(vector == NULL || *vector == 0xcf)
					break;
			   }
		  if(doomcom.intnum == 0x67)
			   {
		   printf(STR_NONULL"\n");
		   exit(-1);
		   }
	  }
	 printf(STR_COMMVECT"\n",doomcom.intnum);

	 if((i = CheckParm("-port")) != 0)
	  {
	  socketid = atoi (myargv[i+1]);
	  printf (STR_USEALT"\n", socketid);
		  }

	 InitNetwork ();

	 LookForNodes ();

     localtime = 0;

	 LaunchDOOM ();

	 ShutdownNetwork ();

	 if (vectorishooked)
		  setvect (doomcom.intnum,olddoomvect);

	 exit(0);
	 }