Implement FOSSIL function 0Dh (Keyboard read without wait)

As a work around for TradeWars 2 (v11.14 and v11.20) FOSSIL support:
This door game would never call the FOSSIL "get received character"
function (02h) . But I did notice that it was calling the "Keyboard
read" functions. I never implemented the "Keyboard read" functions
(figured the door game could read the keyboard itself if it wanted to),
but appparently TW2 won't ever read the COM port (using function 02h)
unless the Keyboard read function returns AX=0xFFFF (no keyboard data
available). So now, I just do that and TW2 works (with FOSSIL I/O).

Incremented the revision to 26.
Logging the Git branch/hash and other helpful FOSSIL-debug stuff now.

src/sbbs3/dosxtrn/dosxtrn.c

@@ -45,7 +45,10 @@
 #include "execvxd.h"
 #include "isvbop.h"			/* ddk\inc */
 #include "fossdefs.h"
+#include "../git_branch.h"
+#include "../git_hash.h"
 
+#define DOSXTRN_REVISION	26
 #define VDD_FILENAME	"sbbsexec.dll"
 
 /****************************************************************************/
@@ -63,7 +66,6 @@ static void truncsp(char *str)
 short	vdd=0;
 BYTE	node_num=0;
 int		mode=0;
-int		revision;
 char	id_string[128];
 #ifdef DEBUG_INT_CALLS
 ulong	int14calls=0;
@@ -215,6 +217,32 @@ WORD PortStatus()
 
 #ifdef DEBUG_FOSSIL_CALLS
 	DWORD fossil_calls[0x100];
+
+const char* fossil_func(int func)
+{
+	switch(func) {
+		case FOSSIL_FUNC_SET_RATE:		return "set rate";
+		case FOSSIL_FUNC_PUT_CHAR:		return "put char";
+		case FOSSIL_FUNC_GET_CHAR:		return "get char";
+		case FOSSIL_FUNC_GET_STATUS:	return "get status";
+		case FOSSIL_FUNC_INIT:			return "init";
+		case FOSSIL_FUNC_UNINIT:		return "uninit";
+		case FOSSIL_FUNC_DTR:			return "dtr";
+		case FOSSIL_FUNC_GET_TIMER:		return "get timer";
+		case FOSSIL_FUNC_FLUSH_OUT:		return "flush out";
+		case FOSSIL_FUNC_PURGE_OUT:		return "purge out";
+		case FOSSIL_FUNC_PURGE_IN:		return "purge in";
+		case FOSSIL_FUNC_WRITE_CHAR:	return "write char";
+		case FOSSIL_FUNC_PEEK:			return "peek";
+		case FOSSIL_FUNC_GET_KB:		return "get kb";
+		case FOSSIL_FUNC_GET_KB_WAIT:	return "get kb wait";
+		case FOSSIL_FUNC_FLOW_CTRL:		return "flow_ctrl";
+		case FOSSIL_FUNC_CTRL_C:		return "ctrl_c";
+		case FOSSIL_FUNC_BREAK:			return "break";
+		case FOSSIL_FUNC_GET_INFO:		return "get info";
+		default: return "unknown";
+	}
+}
 #endif
 
 void interrupt winNTint14(
@@ -233,7 +261,7 @@ void interrupt winNTint14(
     fossil_info_t info = { 
 		 sizeof(info)
 		,FOSSIL_REVISION
-		,revision	/* driver revision */
+		,DOSXTRN_REVISION	/* driver revision */
 		,0			/* ID string pointer */	
 		,0,0		/* receive buffer size/free (overwritten later) */
 		,0,0		/* transmit buffer size/free (overwritten later) */
@@ -345,6 +373,9 @@ void interrupt winNTint14(
             _fmemcpy(p, &info, wr);
         	_ax=wr;
             break;
+		case FOSSIL_FUNC_GET_KB:
+			_ax=0xffff;
+			break;
 	}
 }
 
@@ -482,9 +513,7 @@ int main(int argc, char **argv)
 	WORD	buf_seg;
 	WORD	w;
 
-	sscanf("$Revision: 1.25 $", "%*s 1.%u", &revision);
-
-	sprintf(id_string,"Synchronet FOSSIL Driver (DOSXTRN) revision %u", revision);
+	sprintf(id_string,"Synchronet FOSSIL Driver (DOSXTRN) revision %u %s/%s", DOSXTRN_REVISION, GIT_BRANCH, GIT_HASH);
 	if(argc<2) {
 		fprintf(stderr
 			,"%s - Copyright %s Rob Swindell\n"
@@ -590,7 +619,7 @@ int main(int argc, char **argv)
 
 		vdd_str(VDD_LOAD_INI_SECTION, getfname(arg[0]));
 
-		sprintf(str,"%s, rev %u, %s %s", __FILE__, revision, __DATE__, __TIME__);
+		sprintf(str,"%s, rev %u, %s %s mode=%u", __FILE__, DOSXTRN_REVISION, __DATE__, __TIME__, mode);
 		vdd_str(VDD_DEBUG_OUTPUT, str);
 
 		i=vdd_op(VDD_OPEN);
@@ -642,10 +671,10 @@ int main(int argc, char **argv)
 		vdd_str(VDD_DEBUG_OUTPUT, str);
 
 #ifdef DEBUG_INT_CALLS
-		sprintf(str,"int14h calls: %u", int14calls);	vdd_str(VDD_DEBUG_OUTPUT, str);
-		sprintf(str,"int16h calls: %u", int16calls);	vdd_str(VDD_DEBUG_OUTPUT, str);
-		sprintf(str,"int21h calls: %u", int21calls);	vdd_str(VDD_DEBUG_OUTPUT, str);
-		sprintf(str,"int29h calls: %u", int29calls);	vdd_str(VDD_DEBUG_OUTPUT, str);
+		sprintf(str,"int14h calls: %lu", int14calls);	vdd_str(VDD_DEBUG_OUTPUT, str);
+		sprintf(str,"int16h calls: %lu", int16calls);	vdd_str(VDD_DEBUG_OUTPUT, str);
+		sprintf(str,"int21h calls: %lu", int21calls);	vdd_str(VDD_DEBUG_OUTPUT, str);
+		sprintf(str,"int29h calls: %lu", int29calls);	vdd_str(VDD_DEBUG_OUTPUT, str);
 #endif
 #ifdef DEBUG_DOS_CALLS
 		for(i=0;i<0x100;i++) {
@@ -659,9 +688,10 @@ int main(int argc, char **argv)
 #ifdef DEBUG_FOSSIL_CALLS
 		for(i=0;i<0x100;i++) {
 			if(fossil_calls[i]>0) {
-				sprintf(str,"int14h function %02X calls: %u"
-					,i, fossil_calls[i]);
-				vdd_str(VDD_DEBUG_OUTPUT, str);			}
+				sprintf(str,"int14h function %02X (%-10s) calls: %lu"
+					,i, fossil_func(i), fossil_calls[i]);
+				vdd_str(VDD_DEBUG_OUTPUT, str);
+			}
 		}
 #endif