Differential D3693 Diff 10038 head/sbin/reboot/reboot.c

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head/sbin/reboot/reboot.c

Show First 20 Lines • Show All 71 Lines • ▼ Show 20 Lines	main(int argc, char *argv[])
const char user, kernel = NULL;		const char user, kernel = NULL;

if (strcmp(getprogname(), "halt") == 0) {		if (strcmp(getprogname(), "halt") == 0) {
dohalt = 1;		dohalt = 1;
howto = RB_HALT;		howto = RB_HALT;
} else		} else
howto = 0;		howto = 0;
lflag = nflag = qflag = 0;		lflag = nflag = qflag = 0;
while ((ch = getopt(argc, argv, "dk:lnpq")) != -1)		while ((ch = getopt(argc, argv, "dk:lnpqr")) != -1)
switch(ch) {		switch(ch) {
case 'd':		case 'd':
howto \|= RB_DUMP;		howto \|= RB_DUMP;
break;		break;
case 'k':		case 'k':
kernel = optarg;		kernel = optarg;
break;		break;
case 'l':		case 'l':
lflag = 1;		lflag = 1;
break;		break;
case 'n':		case 'n':
nflag = 1;		nflag = 1;
howto \|= RB_NOSYNC;		howto \|= RB_NOSYNC;
break;		break;
case 'p':		case 'p':
howto \|= RB_POWEROFF;		howto \|= RB_POWEROFF;
break;		break;
case 'q':		case 'q':
qflag = 1;		qflag = 1;
break;		break;
		case 'r':
		howto \|= RB_REROOT;
		break;
case '?':		case '?':
default:		default:
usage();		usage();
}		}
argc -= optind;		argc -= optind;
argv += optind;		argv += optind;

if ((howto & (RB_DUMP \| RB_HALT)) == (RB_DUMP \| RB_HALT))		if ((howto & (RB_DUMP \| RB_HALT)) == (RB_DUMP \| RB_HALT))
errx(1, "cannot dump (-d) when halting; must reboot instead");		errx(1, "cannot dump (-d) when halting; must reboot instead");
		if ((howto & RB_REROOT) != 0 && howto != RB_REROOT)
		errx(1, "-r cannot be used with -d, -n, or -p");
if (geteuid()) {		if (geteuid()) {
errno = EPERM;		errno = EPERM;
err(1, NULL);		err(1, NULL);
}		}

if (qflag) {		if (qflag) {
reboot(howto);		reboot(howto);
err(1, NULL);		err(1, NULL);
Show All 14 Lines	main(int argc, char *argv[])
/* Log the reboot. */		/* Log the reboot. */
if (!lflag) {		if (!lflag) {
if ((user = getlogin()) == NULL)		if ((user = getlogin()) == NULL)
user = (pw = getpwuid(getuid())) ?		user = (pw = getpwuid(getuid())) ?
pw->pw_name : "???";		pw->pw_name : "???";
if (dohalt) {		if (dohalt) {
openlog("halt", 0, LOG_AUTH \| LOG_CONS);		openlog("halt", 0, LOG_AUTH \| LOG_CONS);
syslog(LOG_CRIT, "halted by %s", user);		syslog(LOG_CRIT, "halted by %s", user);
		} else if (howto & RB_REROOT) {
		openlog("reroot", 0, LOG_AUTH \| LOG_CONS);
		syslog(LOG_CRIT, "rerooted by %s", user);
} else {		} else {
openlog("reboot", 0, LOG_AUTH \| LOG_CONS);		openlog("reboot", 0, LOG_AUTH \| LOG_CONS);
syslog(LOG_CRIT, "rebooted by %s", user);		syslog(LOG_CRIT, "rebooted by %s", user);
}		}
}		}
utx.ut_type = SHUTDOWN_TIME;		utx.ut_type = SHUTDOWN_TIME;
gettimeofday(&utx.ut_tv, NULL);		gettimeofday(&utx.ut_tv, NULL);
pututxline(&utx);		pututxline(&utx);
Show All 16 Lines	main(int argc, char *argv[])
(void)signal(SIGTERM, SIG_IGN);		(void)signal(SIGTERM, SIG_IGN);
(void)signal(SIGTSTP, SIG_IGN);		(void)signal(SIGTSTP, SIG_IGN);

/*		/*
* If we're running in a pipeline, we don't want to die		* If we're running in a pipeline, we don't want to die
* after killing whatever we're writing to.		* after killing whatever we're writing to.
*/		*/
(void)signal(SIGPIPE, SIG_IGN);		(void)signal(SIGPIPE, SIG_IGN);

		/*
		* Only init(8) can perform rerooting.
		*/
		if (howto & RB_REROOT) {
		if (kill(1, SIGEMT) == -1)
		err(1, "SIGEMT init");

		return (0);
		}

/* Just stop init -- if we fail, we'll restart it. */		/* Just stop init -- if we fail, we'll restart it. */
if (kill(1, SIGTSTP) == -1)		if (kill(1, SIGTSTP) == -1)
err(1, "SIGTSTP init");		err(1, "SIGTSTP init");

/* Send a SIGTERM first, a chance to save the buffers. */		/* Send a SIGTERM first, a chance to save the buffers. */
if (kill(-1, SIGTERM) == -1 && errno != ESRCH)		if (kill(-1, SIGTERM) == -1 && errno != ESRCH)
err(1, "SIGTERM processes");		err(1, "SIGTERM processes");
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