listener: add a more complex example using parsing

diff --git a/listener.c b/listener.c
index f05506a3faceb86da252adcd1482b2582f3b22dd..d2e2288e4c2e068e64e3df9e25896b31e32c07ad 100644 (file)
--- a/listener.c
+++ b/listener.c
@@ -16,15 +16,33 @@ static const struct ubus_signature test_object_sig[] = {
 static struct ubus_object_type test_object_type =
        UBUS_OBJECT_TYPE("test", test_object_sig);
 
+enum {
+       HELLO_ID,
+       HELLO_MSG,
+       HELLO_LAST
+};
+
+static const struct blobmsg_policy hello_policy[] = {
+       [HELLO_ID] = { .name = "id", .type = BLOBMSG_TYPE_INT32 },
+       [HELLO_MSG] = { .name = "msg", .type = BLOBMSG_TYPE_STRING },
+};
+
 static int test_hello(struct ubus_context *ctx, struct ubus_object *obj,
                      struct ubus_request_data *req, const char *method,
                      struct blob_attr *msg)
 {
+       struct blob_attr *tb[HELLO_LAST];
+       char *msgstr = "(unknown)";
        char *strbuf;
 
+       blobmsg_parse(hello_policy, ARRAY_SIZE(hello_policy), tb, blob_data(msg), blob_len(msg));
+
+       if (tb[HELLO_MSG])
+               msgstr = blobmsg_data(tb[HELLO_MSG]);
+
        blob_buf_init(&b, 0);
-       strbuf = blobmsg_alloc_string_buffer(&b, "message", 64 + strlen(obj->name));
-       sprintf(strbuf, "%s: Hello, world\n", obj->name);
+       strbuf = blobmsg_alloc_string_buffer(&b, "message", 64 + strlen(obj->name) + strlen(msgstr));
+       sprintf(strbuf, "%s: Hello, world: %s", obj->name, msgstr);
        blobmsg_add_string_buffer(&b);
        ubus_send_reply(ctx, req, b.head);
        return 0;