+ /* push a fork into the background */
+ pid_t pid;
+
+ switch (pid = fork()) {
+ case -1:
+ /* fork error */
+ advise(NULL, "unable to fork, so can't push...");
+ break;
+
+ default:
+ /* parent, just exit */
+ done(0);
+
+ case 0:
+ /* child, block a few signals and continue */
+ SIGNAL(SIGHUP, SIG_IGN);
+ SIGNAL(SIGINT, SIG_IGN);
+ SIGNAL(SIGQUIT, SIG_IGN);
+ SIGNAL(SIGTERM, SIG_IGN);
+#ifdef SIGTSTP
+ SIGNAL(SIGTSTP, SIG_IGN);
+ SIGNAL(SIGTTIN, SIG_IGN);
+ SIGNAL(SIGTTOU, SIG_IGN);
+#endif
+ freopen("/dev/null", "r", stdin);
+ freopen("/dev/null", "w", stdout);
+ break;
+ }