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