Adding the release of the DOOM IPX driver.

ipx/DOOMNET.C

@@ -0,0 +1,73 @@
+//#define DOOM2
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <process.h>
+#include <conio.h>
+#include <dos.h>
+
+#include "doomnet.h"
+//#include "ipxstr.h"
+#include "ipx_frch.h"		// FRENCH VERSION
+
+doomcom_t doomcom;
+int            vectorishooked;
+void interrupt (*olddoomvect) (void);
+
+
+
+/*
+=============
+=
+= LaunchDOOM
+=
+These fields in doomcom should be filled in before calling:
+
+     short     numnodes;      // console is allways node 0
+     short     ticdup;             // 1 = no duplication, 2-5 = dup for 
+slow nets
+     short     extratics;          // 1 = send a backup tic in every 
+packet
+
+	 short     consoleplayer; // 0-3 = player number
+	 short     numplayers;         // 1-4
+	 short     angleoffset;   // 1 = left, 0 = center, -1 = right
+	 short     drone;              // 1 = drone
+=============
+*/
+
+void LaunchDOOM (void)
+{
+	 char *newargs[99];
+	 char adrstring[10];
+	 long      flatadr;
+
+// prepare for DOOM
+	 doomcom.id = DOOMCOM_ID;
+
+// hook the interrupt vector
+	 olddoomvect = getvect (doomcom.intnum);
+     setvect (doomcom.intnum,(void interrupt (*)(void))MK_FP(_CS, 
+(int)NetISR));
+     vectorishooked = 1;
+
+// build the argument list for DOOM, adding a -net &doomcom
+     memcpy (newargs, _argv, (_argc+1)*2);
+	 newargs[_argc] = "-net";
+	 flatadr = (long)_DS*16 + (unsigned)&doomcom;
+	 sprintf (adrstring,"%lu",flatadr);
+	 newargs[_argc+1] = adrstring;
+	 newargs[_argc+2] = NULL;
+
+	 if (!access("doom2.exe",0))
+		spawnv  (P_WAIT, "doom2", newargs);
+	 else
+		spawnv  (P_WAIT, "doom", newargs);
+
+	 #ifdef DOOM2
+	 printf (STR_RETURNED"\n");
+	 #else
+	 printf ("Returned from DOOM\n");
+	 #endif
+}