diff options
Diffstat (limited to 'sbin/init/init.c')
| -rw-r--r-- | sbin/init/init.c | 41 |
1 files changed, 37 insertions, 4 deletions
diff --git a/sbin/init/init.c b/sbin/init/init.c index f1cacd8..bc3717a 100644 --- a/sbin/init/init.c +++ b/sbin/init/init.c @@ -45,7 +45,7 @@ static const char copyright[] = static char sccsid[] = "@(#)init.c 8.1 (Berkeley) 7/15/93"; #endif static const char rcsid[] = - "$Id: init.c,v 1.31 1998/07/22 05:45:11 phk Exp $"; + "$Id: init.c,v 1.32 1999/06/16 20:01:19 ru Exp $"; #endif /* not lint */ #include <sys/param.h> @@ -204,9 +204,42 @@ main(argc, argv) errx(1, "%s", strerror(EPERM)); /* System V users like to reexec init. */ - if (getpid() != 1) - errx(1, "already running"); - + if (getpid() != 1) { +#ifdef COMPAT_SYSV_INIT + /* So give them what they want */ + if (argc > 1) { + if (strlen(argv[1]) == 1) { + register char runlevel = *argv[1]; + register int sig; + + switch (runlevel) { + case '0': /* halt + poweroff */ + sig = SIGUSR2; + break; + case '1': /* single-user */ + sig = SIGTERM; + break; + case '6': /* reboot */ + sig = SIGINT; + break; + case 'c': /* block further logins */ + sig = SIGTSTP; + break; + case 'q': /* rescan /etc/ttys */ + sig = SIGHUP; + break; + default: + goto invalid; + } + kill(1, sig); + _exit(0); + } else +invalid: + errx(1, "invalid run-level ``%s''", argv[1]); + } else +#endif + errx(1, "already running"); + } /* * Note that this does NOT open a file... * Does 'init' deserve its own facility number? |
