Service discovery over Majordomo in C

// MMI echo query example

// Lets us build this source without creating a library
#include "mdcliapi.c"

int main (int argc, char *argv [])
{
int verbose = (argc > 1 && streq (argv [1], "-v"));
mdcli_t *session = mdcli_new ("tcp://localhost:5555", verbose);

// This is the service we want to look up
zmsg_t *request = zmsg_new ();
zmsg_addstr (request, "echo");

// This is the service we send our request to
zmsg_t *reply = mdcli_send (session, "mmi.service", &request);

if (reply) {
char *reply_code = zframe_strdup (zmsg_first (reply));
printf ("Lookup echo service: %s\n", reply_code);
free (reply_code);
zmsg_destroy (&reply);
}
else
printf ("E: no response from broker, make sure it's running\n");

mdcli_destroy (&session);
return 0;
}