filter: Make ->open() optional.

[paraslash.git] / filter.c

diff --git a/filter.c b/filter.c
index 1ba12689b45d7b41d3e2a8b1a8c06464114211a6..804b5e1e569a9c680e309f14738e77481161682a 100644 (file)
--- a/filter.c
+++ b/filter.c
@@ -58,7 +58,7 @@ __noreturn static void print_help_and_die(void)
 
        ggo_print_help(&h, d? GPH_STANDARD_FLAGS_DETAILED : GPH_STANDARD_FLAGS);
        print_filter_helps(d? GPH_MODULE_FLAGS_DETAILED : GPH_MODULE_FLAGS);
-       exit(0);
+       exit(EXIT_SUCCESS);
 }
 
 static int parse_config(void)
@@ -142,7 +142,8 @@ int main(int argc, char *argv[])
                ti.pre_select = f->pre_select;
                ti.post_select = f->post_select;
                ti.context = fn;
-               f->open(fn);
+               if (f->open)
+                       f->open(fn);
                fn->task = task_register(&ti, &s);
                parent = fn->btrn;
        }