static void
clean_dir (const char *dir)
{
SocketEntry **entries;
int n_entries;
read_sockets (dir, &entries, &n_entries);
/* open_socket() will fail conclusively after
* several retries, so this loop is guaranteed
* to terminate eventually
*/
while (!handle_sockets (entries, n_entries))
{
fprintf (stderr, "Unable to determine state of some sockets, retrying in 2 seconds\n");
sleep (2);
}
unhandled_count += (n_entries - alive_count - cleaned_count);
}
int main(int argc, char **argv)
{
int status;
struct sigaction usr_action;
struct sigaction term_action;
sigset_t block_mask;
int socks_status;
connections.last_slot = -1;
connections.running_pid = getpid();
status = init(argc, argv, &connections);
if (status == INIT_FAILURE)
{
if (to_printhelp == 1)
print_help(argc, argv);
exit(EXIT_FAILURE);
}
if (status == INIT_SUCCESS && to_printhelp == 1)
{
print_help(argc, argv);
exit(EXIT_SUCCESS);
}
if (to_command_mode)
{
status = execute_command(&connections);
exit(status);
}
Log(LOG_NOTICE, "Program started by User %d \n", getuid());
/* Daemon-specific initialization */
if (to_demonize)
{
status = daemonize(&connections);
switch (status)
{
case DAEMONIZE_FAILURE:
/*something gone wrong exit from parent */
printf("Failed to daemonize.Check permissions\n");
exit(EXIT_FAILURE);
break;
case DAEMONIZE_SUCCESS:
/*ok we are the parent, we can exit gracefully */
Log(LOG_INFO, "Starting as a daemon.Parent exit\n");
printf("Starting as a daemon.Parent exit\n");
exit(EXIT_SUCCESS);
break;
}
}
/* Establish the signal handler. */
sigfillset(&block_mask);
usr_action.sa_handler = sleep_signal;
usr_action.sa_mask = block_mask;
usr_action.sa_flags = 0;
sigaction(SIGUSR1, &usr_action, NULL);
term_action.sa_handler = term_signal;
term_action.sa_mask = block_mask;
term_action.sa_flags = 0;
sigaction(SIGTERM, &term_action, NULL);
Log(LOG_INFO, "Init networking\n");
status = initialize_network(&connections);
Log(LOG_INFO, "Init timers\n");
status = initialize_timers(&connections);
/* The Big Loop */
while (1)
{
Log(LOG_DEBUG, "Main loop\n");
rebuild_connection_set(&connections);
socks_status = select(connections.max_socket + 1, &connections.socket_set, NULL, NULL, NULL);
if (socks_status < 0)
{
status = errno;
/* We had an error, signal it */
if (status != EINTR)
{
Log(LOG_ERR, "Error in select socket (%s) \n", strerror(status));
exit(EXIT_FAILURE);
}
}
else
if (socks_status == 0)
{
/* Nothing to do probably a staying alive msg in debug mode */
}
else
{
read_sockets(&connections);
}
}
closelog();
exit(EXIT_SUCCESS);
}
