Example gnunet app.

#include <gnunet/platform.h>

#include <sys/select.h>

#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>

#include <gnunet/gnunet_util_lib.h>

static int ret;

static void run (void *cls, char *const *args, const char *cfgfile,
        const struct GNUNET_CONFIGURATION_Handle *cfg) {

    struct sockaddr_in sa;
    struct GNUNET_NETWORK_Handle *desc;

    memset (&sa, 0, sizeof (sa));
#if HAVE_SOCKADDR_IN_SIN_LEN
    sa.sin_len = sizeof (sa);
#endif
    sa.sin_family = AF_INET;
    sa.sin_port = htons (6667);
    sa.sin_addr.s_addr = inet_addr("127.0.0.1");
    desc = GNUNET_NETWORK_socket_create (AF_INET, SOCK_STREAM, 0);
    GNUNET_assert (desc != NULL);
    GNUNET_assert (GNUNET_OK == GNUNET_NETWORK_socket_bind
            (desc, (struct sockaddr *) &sa, sizeof (sa)));
    GNUNET_NETWORK_socket_listen (desc, 5);
    ret = 0;
}

int main (int argc, char *const *argv) {
    static const struct GNUNET_GETOPT_CommandLineOption options[] = {
        GNUNET_GETOPT_OPTION_END
    };
    return (GNUNET_OK == GNUNET_PROGRAM_run (
        argc, argv, "gnunetircd",
        gettext_noop ("ircd over gnunet"),
        options, &run, NULL)) ? ret : 1;
}