char *pid_check_and_create()
{
struct stat st;
char* pidfile = pid_filename();
pid_t pid = pid_read(pidfile);
/* Check PID for existence and liveness. */
if (pid > 0 && pid_running(pid)) {
log_server_error("Server PID found, already running.\n");
free(pidfile);
return NULL;
} else if (stat(pidfile, &st) == 0) {
log_server_warning("Removing stale PID file '%s'.\n", pidfile);
pid_remove(pidfile);
}
/* Create a PID file. */
int ret = pid_write(pidfile);
if (ret != KNOT_EOK) {
log_server_error("Couldn't create a PID file '%s'.\n", pidfile);
free(pidfile);
return NULL;
}
return pidfile;
}
void quit_program(int rc)
{
set_process_permissions(0, 0, xstrtoo(VBOX_ROOT_UMASK, 0));
modem_hangup(&vboxmodem);
log_line(LOG_D, "Closing modem device (%d)...\n", vboxmodem.fd);
if (vboxmodem_close(&vboxmodem) != 0)
{
log_line(LOG_E, "%s (%s)\n", vboxmodem_error(), strerror(errno));
}
if (isdnttyname)
{
printstring(temppathname, "%s/LCK..%s", LOCKDIR, isdnttyname);
lock_remove(temppathname);
printstring(temppathname, "%s/vboxgetty-%s.pid", PIDDIR, isdnttyname);
pid_remove(temppathname);
}
scr_remove_interpreter();
rc_free(rc_getty_c);
breaklist_clear();
log_close();
exit(rc);
}
/*! \brief PID file cleanup handler. */
static void pid_cleanup(char *pidfile)
{
if (pidfile && pid_remove(pidfile) < 0) {
log_warning("failed to remove PID file");
}
}
