Added support for naughty FOSSIL programs (e.g. IceEdit and OOII) that call...

Added support for naughty FOSSIL programs (e.g. IceEdit and OOII) that call the int14h ISR directly rather than issue an interrupt.

src/sbbs3/dosxtrn/dosxtrn.c

@@ -116,6 +116,8 @@ static int vdd_op(BYTE op)
 	return(retval);
 }
 
+#if 0
+
 char win95int14[]={
 	 0xCF	// IRET
 	,0x90	// NOP
@@ -128,6 +130,44 @@ char win95int14[]={
 	,0x1B	// FOSSIL highest func supported
 };
 
+#else
+
+union REGS inregs;
+struct SREGS sregs;
+
+/* This function is only necessary for naughty programs that call the vector
+   directly instead of issuing an interrupt 
+*/
+void interrupt win95int14(
+	unsigned _es, unsigned _ds,
+	unsigned _di, unsigned _si,
+	unsigned _bp, unsigned _sp,
+	unsigned _bx, unsigned _dx,
+	unsigned _cx, unsigned _ax,
+    unsigned flags )
+{
+	union REGS outregs;
+
+	inregs.x.ax=_ax;
+	inregs.x.bx=_bx;
+	inregs.x.cx=_cx;
+	inregs.x.dx=_dx;
+	inregs.x.si=_si;
+	inregs.x.di=_di;
+	inregs.x.cflag=flags;
+
+	sregs.es=_es;
+	sregs.ds=_ds;
+
+	int86x(0x14,&inregs,&outregs,&sregs);
+
+	/* FOSSIL driver only touches these AX and BX */
+	_ax= outregs.x.ax;
+	_bx= outregs.x.bx;
+}
+
+#endif
+
 void vdd_getstatus(vdd_status_t* status)
 {
 	WORD			buf_seg;
@@ -385,13 +425,12 @@ int main(int argc, char **argv)
 	strcat(dll,"SBBSEXEC.DLL");
 	DllName=dll;
 
-	if(argc>2 && !strcmp(argv[2],"NT")) {
+	if(argc>2 && !strcmp(argv[2],"NT")) 
 		NT=TRUE;
-		if(argc>3)
-			node_num=atoi(argv[3]);
-		if(argc>4)
-			mode=atoi(argv[4]);
-	}
+	if(argc>3)
+		node_num=atoi(argv[3]);
+	if(argc>4)
+		mode=atoi(argv[4]);
 
 	if((fp=fopen(argv[1],"r"))==NULL) {
 		fprintf(stderr,"!Error opening %s\n",argv[1]);
@@ -469,7 +508,7 @@ int main(int argc, char **argv)
 		if(mode&SBBSEXEC_MODE_DOS_OUT) 
 			_dos_setvect(0x29,winNTint29); 
 	}
-	else		/* Windows 95/98/Millennium */
+	else if(mode==SBBSEXEC_MODE_FOSSIL)	/* Windows 95/98/Millennium */
 		_dos_setvect(0x14,(void(interrupt *)())win95int14); 
 
 	_heapmin();