Add code_prefix property to msg_area.grp[] and file_area.lib[]

These configuration properties were not previously exposed via JS.

src/sbbs3/js_file_area.c

@@ -38,6 +38,7 @@ static char* lib_prop_desc[] = {
 	,"library access requirements"
 	,"library link (for HTML index)"
 	,"user has sufficient access to this library's directories <i>(introduced in v3.18)</i>"
+	,"internal code prefix (for directories) <i>(introduced in v3.18c)</i>"
 	,NULL
 };
 
@@ -336,6 +337,12 @@ JSBool DLLCALL js_file_area_resolve(JSContext* cx, JSObject* areaobj, jsid id)
 			if(!JS_SetProperty(cx, libobj, "can_access", &val))
 				return JS_FALSE;
 
+			if((js_str=JS_NewStringCopyZ(cx, p->cfg->lib[l]->code_prefix))==NULL)
+				return JS_FALSE;
+			val=STRING_TO_JSVAL(js_str);
+			if(!JS_SetProperty(cx, libobj, "code_prefix", &val))
+				return JS_FALSE;
+
 #ifdef BUILD_JSDOCS
 			js_DescribeSyncObject(cx,libobj,"File Transfer Libraries (current user has access to)",310);
 #endif

src/sbbs3/js_msg_area.c

@@ -39,6 +39,7 @@ static char* msg_grp_prop_desc[] = {
 	,"group description"
 	,"group access requirements"
 	,"user has sufficient access to list this group's sub-boards <i>(introduced in v3.18)</i>"
+	,"internal code prefix (for sub-boards) <i>(introduced in v3.18c)</i>"
 	,NULL
 };
 
@@ -526,6 +527,12 @@ JSBool DLLCALL js_msg_area_resolve(JSContext* cx, JSObject* areaobj, jsid id)
 			if(!JS_SetProperty(cx, grpobj, "can_access", &val))
 				return JS_FALSE;
 
+			if((js_str=JS_NewStringCopyZ(cx, p->cfg->grp[l]->code_prefix))==NULL)
+				return JS_FALSE;
+			val=STRING_TO_JSVAL(js_str);
+			if(!JS_SetProperty(cx, grpobj, "code_prefix", &val))
+				return JS_FALSE;
+
 #ifdef BUILD_JSDOCS
 			js_DescribeSyncObject(cx,grpobj,"Message Groups (current user has access to)",310);
 #endif