ulist() option list can be terminated by a NULL pointer.

src/uifc/uifc.c

@@ -374,7 +374,7 @@ if(mode&WIN_GET) bline|=BL_GET;
 if(mode&WIN_PUT) bline|=BL_PUT;
 bottomline(bline);
 while(opts<max_opts && opts<MAX_OPTS)
-	if(option[opts][0]==0)
+	if(option[opts]==NULL || option[opts][0]==0)
 		break;
 	else opts++;
 if(mode&WIN_XTR && opts<max_opts && opts<MAX_OPTS)

src/uifc/uifc32.c

@@ -636,7 +636,7 @@ int ulist(int mode, int left, int top, int width, int *cur, int *bar
 	if(mode&WIN_PUT) bline|=BL_PUT;
 	bottomline(bline);
 	while(opts<MAX_OPTS)
-		if(option[opts][0]==0)
+		if(option[opts]==NULL || option[opts][0]==0)
 			break;
 		else opts++;
 	if(mode&WIN_XTR && opts<MAX_OPTS)

src/uifc/uifcc.c

@@ -422,7 +422,7 @@ int ulist(int mode, int left, int top, int width, int *cur, int *bar
 	if(mode&WIN_PUT) bline|=BL_PUT;
 	bottomline(bline);
 	while(opts<max_opts && opts<MAX_OPTS)
-		if(option[opts][0]==0)
+		if(option[opts]==NULL || option[opts][0]==0)
 			break;
 		else opts++;
 	if(mode&WIN_XTR && opts<max_opts && opts<MAX_OPTS)

src/uifc/uifcd.c

@@ -135,7 +135,7 @@ int ulist(int mode, int left, int top, int width, int *cur, int *bar
 
 	/* Count number of menu options */
     for(cnt=0;cnt<MAX_OPTS;cnt++)
-		if(option[cnt][0]==0)
+		if(option[cnt]==NULL || option[cnt][0]==0)
 	   		break;
 	options=cnt;
 	freecnt=cnt+5;	/* Add, Delete, Copy, Paste, At End */

src/uifc/uifcx.c

@@ -200,7 +200,7 @@ int ulist(int mode, int left, int top, int width, int *cur, int *bar
     int lines;
 
     for(opts=0;opts<MAX_OPTS;opts++)
-    	if(option[opts][0]==0)
+    	if(option[opts]==NULL || option[opts][0]==0)
     		break;
 
     if((*cur)>=opts)