#include <stdio.h>
#include <libubox/blobmsg.h>
#include <libubox/blobmsg_json.h>

#define _GNU_SOURCE

static struct blob_buf b;

enum {
    DEV_ADDRESSES,
    __DEV_MAX,
};

static const struct blobmsg_policy dev_policy[__DEV_MAX] = {
    [DEV_ADDRESSES] = { .name = "address", .type = BLOBMSG_TYPE_ARRAY },
};

static void ubus_callback(struct ubus_request *req, int type, struct blob_attr *msg) {
    struct blob_attr *tb[__DEV_MAX];
    int rem;
    struct blob_attr *cur;
    blobmsg_parse(dev_policy, __DEV_MAX, tb, blob_data(msg), blob_len(msg));
    blobmsg_for_each_attr(cur, tb[DEV_ADDRESSES], rem) {
        printf("device addr: %s\n", blobmsg_data(cur));
    }
}

int main() {
    static struct ubus_context *ubus_ctx;
    uint32_t ubus_id;
    //const char *ubus_socket = NULL;

    ubus_ctx = ubus_connect(NULL);
    if(!ubus_ctx)
        return -1;

    ubus_lookup_id(ubus_ctx, "network.interface.lan", &ubus_id);
    ubus_invoke(ubus_ctx, ubus_id, "status", b.head, ubus_callback, NULL, 1000); //TODO: timeout chosen in arbitrary way - find sane value
}