168 lines
3.3 KiB
C
168 lines
3.3 KiB
C
#include <libubox/blobmsg_json.h>
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#include "libubus.h"
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static struct blob_buf b;
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static const char *attr_types[] = {
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[BLOBMSG_TYPE_INT32] = "\"Integer\"",
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[BLOBMSG_TYPE_STRING] = "\"String\"",
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};
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static const char *format_type(void *priv, struct blob_attr *attr)
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{
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const char *type = NULL;
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int typeid;
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if (blob_id(attr) != BLOBMSG_TYPE_INT32)
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return NULL;
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typeid = blobmsg_get_u32(attr);
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if (typeid < ARRAY_SIZE(attr_types))
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type = attr_types[typeid];
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if (!type)
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type = "\"(unknown)\"";
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return type;
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}
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static void receive_lookup(struct ubus_context *ctx, struct ubus_object_data *obj, void *priv)
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{
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struct blob_attr *cur;
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char *s;
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int rem;
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fprintf(stderr, "'%s' @%08x\n", obj->path, obj->id);
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if (!obj->signature)
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return;
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blob_for_each_attr(cur, obj->signature, rem) {
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s = blobmsg_format_json_with_cb(cur, false, format_type, NULL);
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fprintf(stderr, "\t%s\n", s);
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free(s);
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}
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}
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static void receive_data(struct ubus_request *req, int type, struct blob_attr *msg)
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{
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char *str;
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if (!msg)
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return;
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str = blobmsg_format_json(msg, true);
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fprintf(stderr, "%s\n", str);
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free(str);
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}
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static int usage(char *prog)
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{
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fprintf(stderr,
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"Usage: %s <command> [arguments...]\n"
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"Commands:\n"
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" - list [<path>] List objects\n"
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" - call <path> <method> [<message>] Call an object method\n"
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" - listen [<path>...] Listen for events\n"
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"\n", prog);
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return 1;
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}
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static void receive_event(struct ubus_context *ctx, struct ubus_event_handler *ev,
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const char *type, struct blob_attr *msg)
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{
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char *str;
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if (msg)
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str = blobmsg_format_json(msg, true);
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else
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str = "";
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fprintf(stderr, "\"%s\":{ %s }\n", type, str);
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free(str);
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}
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static int ubus_cli_listen(struct ubus_context *ctx, int argc, char **argv)
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{
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static struct ubus_event_handler listener;
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const char *event;
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int ret = 0;
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memset(&listener, 0, sizeof(listener));
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listener.cb = receive_event;
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if (!argc) {
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event = "*";
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ret = ubus_register_event_handler(ctx, &listener, NULL);
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}
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for (;argc;argv++, argc--) {
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event = argv[0];
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ret = ubus_register_event_handler(ctx, &listener, argv[0]);
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if (ret)
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break;
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}
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if (ret) {
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fprintf(stderr, "Error while registering for event '%s': %s\n",
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event, ubus_strerror(ret));
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}
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uloop_init();
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ubus_add_uloop(ctx);
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uloop_run();
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uloop_done();
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return 0;
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}
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int main(int argc, char **argv)
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{
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static struct ubus_context *ctx;
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char *cmd;
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int ret = 0;
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ctx = ubus_connect(NULL);
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if (!ctx) {
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fprintf(stderr, "Failed to connect to ubus\n");
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return -1;
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}
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cmd = argv[1];
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if (argc < 2)
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return usage(argv[0]);
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if (!strcmp(cmd, "list")) {
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const char *path = NULL;
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if (argc == 3)
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path = argv[2];
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ret = ubus_lookup(ctx, path, receive_lookup, NULL);
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} else if (!strcmp(cmd, "call")) {
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uint32_t id;
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if (argc < 4 || argc > 5)
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return usage(argv[0]);
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blob_buf_init(&b, 0);
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if (argc == 5 && !blobmsg_add_json_from_string(&b, argv[4])) {
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fprintf(stderr, "Failed to parse message data\n");
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goto out;
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}
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ret = ubus_lookup_id(ctx, argv[2], &id);
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if (!ret)
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ret = ubus_invoke(ctx, id, argv[3], b.head, receive_data, NULL);
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} else if (!strcmp(cmd, "listen")) {
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ret = ubus_cli_listen(ctx, argc - 2, argv + 2);
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} else {
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return usage(argv[0]);
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}
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if (ret)
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fprintf(stderr, "Failed: %s\n", ubus_strerror(ret));
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out:
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ubus_free(ctx);
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return ret;
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}
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