Trivial refactor of the parse function to take a length argument

src/vmod_frozen.c

@@ -209,9 +209,9 @@ vmod_parser_expect(VRT_CTX,
 static void vfex_cb(void *, const char *, size_t, const char *,
     const struct json_token *);
 
-VCL_BOOL
-vmod_parser_parse(VRT_CTX, struct vmod_frozen_parser *vfpaa,
-    const char *s)
+static VCL_BOOL
+parse(VRT_CTX, struct vmod_frozen_parser *vfpaa,
+    const char *s, size_t len)
 {
 	const struct vmod_frozen_parser *vfpa = vfpaa;
 	struct vmod_frozen_task *vfta;
@@ -273,7 +273,7 @@ vmod_parser_parse(VRT_CTX, struct vmod_frozen_parser *vfpaa,
 	args->callback = vfex_cb;
 	args->callback_data = vfta;
 
-	r = !! json_walk_args(s, strlen(s), args);
+	r = !! json_walk_args(s, len, args);
 
 	// prep for extract
 	vfta->first = 0;
@@ -291,6 +291,13 @@ vmod_parser_parse(VRT_CTX, struct vmod_frozen_parser *vfpaa,
 	return(r);
 }
 
+VCL_BOOL
+vmod_parser_parse(VRT_CTX, struct vmod_frozen_parser *vfpaa,
+    const char *s)
+{
+	return (parse(ctx, vfpaa, s, s != NULL ? strlen(s) : 0));
+}
+
 static const enum type_e json_type_2_type_e[JSON_TYPES_CNT] = {
 	[JSON_TYPE_INVALID] = _TYPE_E_INVALID,
 	[JSON_TYPE_STRING] = type_STRING,