[unix-history] / usr / src / sbin / shutdown / shutdown.c

static	char *sccsid = "@(#)shutdown.c	4.14 (Berkeley) 82/10/23";

#include <stdio.h>
#include <ctype.h>
#include <signal.h>
#include <utmp.h>
#include <time.h>
#include <sys/types.h>
/*
 *	/etc/shutdown when [messages]
 *
 *	allow super users to tell users and remind users
 *	of iminent shutdown of unix
 *	and shut it down automatically
 *	and even reboot or halt the machine if they desire
 *
 *		Ian Johnstone, Sydney, 1977
 *		Robert Elz, Melbourne, 1978
 *		Peter Lamb, Melbourne, 1980
 *		William Joy, Berkeley, 1981
 *		Michael Toy, Berkeley, 1981
 *		Dave Presotto, Berkeley, 1981
 */
#ifdef DEBUG
#define LOGFILE "shutdown.log"
#else
#define LOGFILE "/usr/adm/shutdownlog"
#endif
#define	REBOOT	"/etc/reboot"
#define	HALT	"/etc/halt"
#define MAXINTS 20
#define	HOURS	*3600
#define MINUTES	*60
#define SECONDS
#define NLOG		20		/* no of args possible for message */
#define	NOLOGTIME	5 MINUTES
#define IGNOREUSER	"sleeper"

char	hostname[32];

int	do_nothing();
time_t	getsdt();

extern	char *ctime();
extern	struct tm *localtime();

struct	utmp utmp;
int	sint;
int	stogo;
char	tpath[] =	"/dev/";
int	nlflag = 1;		/* nolog yet to be done */
int	killflg = 1;
int	reboot = 0;
int	halt = 0;
char	term[sizeof tpath + sizeof utmp.ut_line];
char	tbuf[BUFSIZ];
char	nolog1[] = "\n\nNO LOGINS: System going down at %5.5s\n\n";
char	*nolog2[NLOG+1];
#ifdef	DEBUG
char	nologin[] = "nologin";
#else
char	nologin[] = "/etc/nologin";
#endif
time_t	nowtime;

struct interval {
	int stogo;
	int sint;
} interval[] = {
	4 HOURS,	1 HOURS,
	2 HOURS,	30 MINUTES,
	1 HOURS,	15 MINUTES,
	30 MINUTES,	10 MINUTES,
	15 MINUTES,	5 MINUTES,
	10 MINUTES,	5 MINUTES,
	5 MINUTES,	3 MINUTES,
	2 MINUTES,	1 MINUTES,
	1 MINUTES,	30 SECONDS,
	0 SECONDS,	0 SECONDS
};

char *shutter, *getlogin();

main(argc,argv)
	int argc;
	char **argv;
{
	register i, ufd;
	register char **mess, *f;
	char *ts;
	time_t sdt;
	int h, m;
	int first;
	FILE *termf;

	shutter = getlogin();
	gethostname(hostname, sizeof (hostname));
	argc--, argv++;
	while (argc > 0 && (f = argv[0], *f++ == '-')) {
		while (i = *f++) switch (i) {
		case 'k':
			killflg = 0;
			continue;
		case 'r':
			reboot = 1;
			continue;
		case 'h':
			halt = 1;
			continue;
		default:
			fprintf(stderr, "shutdown: '%c' - unknown flag\n", i);
			exit(1);
		}
		argc--, argv++;
	}
	if (argc < 1) {
		printf("Usage: %s [ -krh ] shutdowntime [ message ]\n",
		    argv[0]);
		finish();
	}
	if (geteuid()) {
		fprintf(stderr, "NOT super-user\n");
		finish();
	}
	nowtime = time((time_t *)0);
	sdt = getsdt(argv[0]);
	argc--, argv++;
	i = 0;
	while (argc-- > 0)
		if (i < NLOG)
			nolog2[i++] = *argv++;
	nolog2[i] = NULL;
	m = ((stogo = sdt - nowtime) + 30)/60;
	h = m/60; 
	m %= 60;
	ts = ctime(&sdt);
	printf("Shutdown at %5.5s (in ", ts+11);
	if (h > 0)
		printf("%d hour%s ", h, h != 1 ? "s" : "");
	printf("%d minute%s) ", m, m != 1 ? "s" : "");
#ifndef DEBUG
	signal(SIGHUP, SIG_IGN);
	signal(SIGQUIT, SIG_IGN);
	signal(SIGINT, SIG_IGN);
#endif
	signal(SIGTERM, finish);
	signal(SIGALRM, do_nothing);
	nice(-20);
	fflush(stdout);
#ifndef DEBUG
	if (i = fork()) {
		printf("[pid %d]\n", i);
		exit(0);
	}
#else
	putc('\n', stdout);
#endif
	sint = 1 HOURS;
	f = "";
	ufd = open("/etc/utmp",0);
	if (ufd < 0) {
		perror("shutdown: /etc/utmp");
		exit(1);
	}
	first = 1;
	for (;;) {
		for (i = 0; stogo <= interval[i].stogo && interval[i].sint; i++)
			sint = interval[i].sint;
		if (stogo > 0 && (stogo-sint) < interval[i].stogo)
			sint = stogo - interval[i].stogo;
		if (stogo <= NOLOGTIME && nlflag) {
			nlflag = 0;
			nolog(sdt);
		}
		if (sint >= stogo || sint == 0)
			f = "FINAL ";
		nowtime = time((time_t *) 0);
		lseek(ufd, 0L, 0);
		while (read(ufd,&utmp,sizeof utmp)==sizeof utmp)
		if (utmp.ut_name[0] &&
		    strncmp(utmp.ut_name, IGNOREUSER, sizeof(utmp.ut_name))) {
			strcpy(term, tpath);
			strncat(term, utmp.ut_line, sizeof utmp.ut_line);
			alarm(3);
#ifdef DEBUG
			if ((termf = stdout) != NULL)
#else
			if ((termf = fopen(term, "w")) != NULL)
#endif
			{
				alarm(0);
				setbuf(termf, tbuf);
				fprintf(termf, "\n\r\n");
				warn(termf, sdt, nowtime, f);
				if (first || sdt - nowtime > 1 MINUTES) {
					if (*nolog2)
						fprintf(termf, "\t...");
					for (mess = nolog2; *mess; mess++)
						fprintf(termf, " %s", *mess);
				}
				fputc('\r', termf);
				fputc('\n', termf);
				alarm(5);
#ifdef DEBUG
				fflush(termf);
#else
				fclose(termf);
#endif
				alarm(0);
			}
		}
		if (stogo <= 0) {
	printf("\n\007\007System shutdown time has arrived\007\007\n");
			log_entry(sdt);
			unlink(nologin);
			if (!killflg) {
				printf("but you'll have to do it yourself\n");
				finish();
			}
#ifndef DEBUG
			kill(-1, SIGTERM);	/* terminate everyone */
			sleep(5);		/* & wait while they die */
			if (reboot)
				execle(REBOOT, "reboot", 0, 0);
			if (halt)
				execle(HALT, "halt", 0, 0);
			kill(1, SIGTERM);	/* sync */
			kill(1, SIGTERM);	/* sync */
			sleep(20);
#else
			printf("EXTERMINATE EXTERMINATE\n");
#endif
			finish();
		}
		stogo = sdt - time((time_t *) 0);
		if (stogo > 0 && sint > 0)
			sleep(sint<stogo ? sint : stogo);
		stogo -= sint;
		first = 0;
	}
}

time_t
getsdt(s)
	register char *s;
{
	time_t t, t1, tim;
	register char c;
	struct tm *lt;

	if (strcmp(s, "now") == 0)
		return(nowtime);
	if (*s == '+') {
		++s; 
		t = 0;
		for (;;) {
			c = *s++;
			if (!isdigit(c))
				break;
			t = t * 10 + c - '0';
		}
		if (t <= 0)
			t = 5;
		t *= 60;
		tim = time((time_t *) 0) + t;
		return(tim);
	}
	t = 0;
	while (strlen(s) > 2 && isdigit(*s))
		t = t * 10 + *s++ - '0';
	if (*s == ':')
		s++;
	if (t > 23)
		goto badform;
	tim = t*60;
	t = 0;
	while (isdigit(*s))
		t = t * 10 + *s++ - '0';
	if (t > 59)
		goto badform;
	tim += t; 
	tim *= 60;
	t1 = time((time_t *) 0);
	lt = localtime(&t1);
	t = lt->tm_sec + lt->tm_min*60 + lt->tm_hour*3600;
	if (tim < t || tim >= (24*3600)) {
		/* before now or after midnight */
		printf("That must be tomorrow\nCan't you wait till then?\n");
		finish();
	}
	return (t1 + tim - t);
badform:
	printf("Bad time format\n");
	finish();
}

warn(term, sdt, now, type)
	FILE *term;
	time_t sdt, now;
	char *type;
{
	char *ts;
	register delay = sdt - now;

	if (delay > 8)
		while (delay % 5)
			delay++;

	if (shutter)
		fprintf(term,
	    "\007\007\t*** %sSystem shutdown message from %s!%s ***\r\n\n",
		    type, hostname, shutter);
	else
		fprintf(term,
		    "\007\007\t*** %sSystem shutdown message (%s) ***\r\n\n",
		    type, hostname);

	ts = ctime(&sdt);
	if (delay > 10 MINUTES)
		fprintf(term, "System going down at %5.5s\r\n", ts+11);
	else if (delay > 95 SECONDS) {
		fprintf(term, "System going down in %d minute%s\r\n",
		    (delay+30)/60, (delay+30)/60 != 1 ? "s" : "");
	} else if (delay > 0) {
		fprintf(term, "System going down in %d second%s\r\n",
		    delay, delay != 1 ? "s" : "");
	} else
		fprintf(term, "System going down IMMEDIATELY\r\n");
}

nolog(sdt)
	time_t sdt;
{
	FILE *nologf;
	register char **mess;

	unlink(nologin);			/* in case linked to std file */
	if ((nologf = fopen(nologin, "w")) != NULL) {
		fprintf(nologf, nolog1, (ctime(&sdt)) + 11);
		putc('\t', nologf);
		for (mess = nolog2; *mess; mess++)
			fprintf(nologf, " %s", *mess);
		putc('\n', nologf);
		fclose(nologf);
	}
}

finish()
{
	signal(SIGTERM, SIG_IGN);
	unlink(nologin);
	exit(0);
}

do_nothing()
{

	signal(SIGALRM, do_nothing);
}

/*
 * make an entry in the shutdown log
 */

char *days[] = {
	"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
};

char *months[] = {
	"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep",
	"Oct", "Nov", "Dec"
};

log_entry(now)
	time_t now;
{
	register FILE *fp;
	register char **mess;
	struct tm *tm, *localtime();

	tm = localtime(&now);
	fp = fopen(LOGFILE, "a");
	if (fp == NULL) {
		printf("Shutdown: log entry failed\n");
		return;
	}
	fseek(fp, 0L, 2);
	fprintf(fp, "%02d:%02d  %s %s %2d, %4d.  Shutdown:", tm->tm_hour,
		tm->tm_min, days[tm->tm_wday], months[tm->tm_mon],
		tm->tm_mday, tm->tm_year + 1900);
	for (mess = nolog2; *mess; mess++)
		fprintf(fp, " %s", *mess);
	if (shutter)
		fprintf(fp, " (by %s!%s)", hostname, shutter);
	fputc('\n', fp);
	fclose(fp);
}
Commit	Line	Data
3ce26e8e	1	static char *sccsid = "@(#)shutdown.c 4.14 (Berkeley) 82/10/23";
954bb1fe BJ	2
	3	#include <stdio.h>
	4	#include <ctype.h>
	5	#include <signal.h>
	6	#include <utmp.h>
	7	#include <time.h>
	8	#include <sys/types.h>
	9	/*
	10	* /etc/shutdown when [messages]
	11	*
	12	* allow super users to tell users and remind users
	13	* of iminent shutdown of unix
	14	* and shut it down automatically
	15	* and even reboot or halt the machine if they desire
	16	*
	17	* Ian Johnstone, Sydney, 1977
	18	* Robert Elz, Melbourne, 1978
	19	* Peter Lamb, Melbourne, 1980
	20	* William Joy, Berkeley, 1981
8fa8eeab	21	* Michael Toy, Berkeley, 1981
d3818e48	22	* Dave Presotto, Berkeley, 1981
954bb1fe	23	*/
8fa8eeab BJ	24	#ifdef DEBUG
	25	#define LOGFILE "shutdown.log"
	26	#else
	27	#define LOGFILE "/usr/adm/shutdownlog"
	28	#endif
954bb1fe BJ	29	#define REBOOT "/etc/reboot"
	30	#define HALT "/etc/halt"
	31	#define MAXINTS 20
	32	#define HOURS *3600
	33	#define MINUTES *60
	34	#define SECONDS
ab07e5ac	35	#define NLOG 20 /* no of args possible for message */
954bb1fe	36	#define NOLOGTIME 5 MINUTES
d3818e48	37	#define IGNOREUSER "sleeper"
954bb1fe	38
cf288731 BJ	39	char hostname[32];
cf288731 BJ	40
954bb1fe BJ	41	int do_nothing();
	42	time_t getsdt();
	43
	44	extern char *ctime();
	45	extern struct tm *localtime();
	46
	47	struct utmp utmp;
	48	int sint;
	49	int stogo;
	50	char tpath[] = "/dev/";
	51	int nlflag = 1; /* nolog yet to be done */
	52	int killflg = 1;
	53	int reboot = 0;
	54	int halt = 0;
	55	char term[sizeof tpath + sizeof utmp.ut_line];
	56	char tbuf[BUFSIZ];
	57	char nolog1[] = "\n\nNO LOGINS: System going down at %5.5s\n\n";
	58	char *nolog2[NLOG+1];
	59	#ifdef DEBUG
	60	char nologin[] = "nologin";
	61	#else
	62	char nologin[] = "/etc/nologin";
	63	#endif
3ce26e8e KM	64	time_t nowtime;
3ce26e8e KM	65
954bb1fe BJ	66	struct interval {
	67	int stogo;
	68	int sint;
	69	} interval[] = {
	70	4 HOURS, 1 HOURS,
	71	2 HOURS, 30 MINUTES,
	72	1 HOURS, 15 MINUTES,
	73	30 MINUTES, 10 MINUTES,
	74	15 MINUTES, 5 MINUTES,
8fa8eeab BJ	75	10 MINUTES, 5 MINUTES,
8fa8eeab BJ	76	5 MINUTES, 3 MINUTES,
3ce26e8e KM	77	2 MINUTES, 1 MINUTES,
3ce26e8e KM	78	1 MINUTES, 30 SECONDS,
954bb1fe BJ	79	0 SECONDS, 0 SECONDS
954bb1fe BJ	80	};
3ce26e8e	81
8fa8eeab	82	char shutter, getlogin();
3ce26e8e	83
954bb1fe BJ	84	main(argc,argv)
	85	int argc;
	86	char **argv;
	87	{
	88	register i, ufd;
	89	register char *mess, f;
	90	char *ts;
3ce26e8e	91	time_t sdt;
954bb1fe	92	int h, m;
3ce26e8e	93	int first;
954bb1fe BJ	94	FILE *termf;
954bb1fe BJ	95
8fa8eeab	96	shutter = getlogin();
cf288731	97	gethostname(hostname, sizeof (hostname));
954bb1fe BJ	98	argc--, argv++;
	99	while (argc > 0 && (f = argv[0], *f++ == '-')) {
	100	while (i = *f++) switch (i) {
	101	case 'k':
	102	killflg = 0;
	103	continue;
	104	case 'r':
	105	reboot = 1;
	106	continue;
	107	case 'h':
	108	halt = 1;
	109	continue;
	110	default:
	111	fprintf(stderr, "shutdown: '%c' - unknown flag\n", i);
	112	exit(1);
	113	}
	114	argc--, argv++;
	115	}
	116	if (argc < 1) {
ab07e5ac	117	printf("Usage: %s [ -krh ] shutdowntime [ message ]\n",
954bb1fe BJ	118	argv[0]);
	119	finish();
	120	}
4004e859 BJ	121	if (geteuid()) {
4004e859 BJ	122	fprintf(stderr, "NOT super-user\n");
7b602762 MT	123	finish();
7b602762 MT	124	}
3ce26e8e	125	nowtime = time((time_t *)0);
954bb1fe BJ	126	sdt = getsdt(argv[0]);
	127	argc--, argv++;
	128	i = 0;
	129	while (argc-- > 0)
	130	if (i < NLOG)
	131	nolog2[i++] = *argv++;
	132	nolog2[i] = NULL;
954bb1fe BJ	133	m = ((stogo = sdt - nowtime) + 30)/60;
	134	h = m/60;
	135	m %= 60;
	136	ts = ctime(&sdt);
8fa8eeab	137	printf("Shutdown at %5.5s (in ", ts+11);
954bb1fe BJ	138	if (h > 0)
954bb1fe BJ	139	printf("%d hour%s ", h, h != 1 ? "s" : "");
8fa8eeab	140	printf("%d minute%s) ", m, m != 1 ? "s" : "");
954bb1fe BJ	141	#ifndef DEBUG
	142	signal(SIGHUP, SIG_IGN);
	143	signal(SIGQUIT, SIG_IGN);
	144	signal(SIGINT, SIG_IGN);
	145	#endif
	146	signal(SIGTERM, finish);
	147	signal(SIGALRM, do_nothing);
	148	nice(-20);
ab07e5ac	149	fflush(stdout);
8fa8eeab	150	#ifndef DEBUG
954bb1fe	151	if (i = fork()) {
8fa8eeab	152	printf("[pid %d]\n", i);
954bb1fe BJ	153	exit(0);
954bb1fe BJ	154	}
3ce26e8e KM	155	#else
3ce26e8e KM	156	putc('\n', stdout);
8fa8eeab	157	#endif
954bb1fe BJ	158	sint = 1 HOURS;
954bb1fe BJ	159	f = "";
3ce26e8e KM	160	ufd = open("/etc/utmp",0);
	161	if (ufd < 0) {
	162	perror("shutdown: /etc/utmp");
	163	exit(1);
	164	}
	165	first = 1;
954bb1fe BJ	166	for (;;) {
	167	for (i = 0; stogo <= interval[i].stogo && interval[i].sint; i++)
	168	sint = interval[i].sint;
3ce26e8e KM	169	if (stogo > 0 && (stogo-sint) < interval[i].stogo)
3ce26e8e KM	170	sint = stogo - interval[i].stogo;
954bb1fe BJ	171	if (stogo <= NOLOGTIME && nlflag) {
	172	nlflag = 0;
	173	nolog(sdt);
	174	}
	175	if (sint >= stogo \|\| sint == 0)
	176	f = "FINAL ";
3ce26e8e KM	177	nowtime = time((time_t *) 0);
3ce26e8e KM	178	lseek(ufd, 0L, 0);
954bb1fe	179	while (read(ufd,&utmp,sizeof utmp)==sizeof utmp)
d3818e48 BJ	180	if (utmp.ut_name[0] &&
d3818e48 BJ	181	strncmp(utmp.ut_name, IGNOREUSER, sizeof(utmp.ut_name))) {
954bb1fe BJ	182	strcpy(term, tpath);
	183	strncat(term, utmp.ut_line, sizeof utmp.ut_line);
	184	alarm(3);
	185	#ifdef DEBUG
8fa8eeab	186	if ((termf = stdout) != NULL)
954bb1fe BJ	187	#else
	188	if ((termf = fopen(term, "w")) != NULL)
	189	#endif
	190	{
	191	alarm(0);
	192	setbuf(termf, tbuf);
3ce26e8e KM	193	fprintf(termf, "\n\r\n");
	194	warn(termf, sdt, nowtime, f);
	195	if (first \|\| sdt - nowtime > 1 MINUTES) {
	196	if (*nolog2)
	197	fprintf(termf, "\t...");
954bb1fe	198	for (mess = nolog2; *mess; mess++)
3ce26e8e KM	199	fprintf(termf, " %s", *mess);
	200	}
	201	fputc('\r', termf);
954bb1fe	202	fputc('\n', termf);
8fa8eeab BJ	203	alarm(5);
	204	#ifdef DEBUG
	205	fflush(termf);
	206	#else
954bb1fe	207	fclose(termf);
8fa8eeab	208	#endif
954bb1fe BJ	209	alarm(0);
	210	}
	211	}
3ce26e8e	212	if (stogo <= 0) {
954bb1fe	213	printf("\n\007\007System shutdown time has arrived\007\007\n");
8fa8eeab	214	log_entry(sdt);
954bb1fe BJ	215	unlink(nologin);
	216	if (!killflg) {
	217	printf("but you'll have to do it yourself\n");
	218	finish();
	219	}
	220	#ifndef DEBUG
3ce26e8e KM	221	kill(-1, SIGTERM); /* terminate everyone */
3ce26e8e KM	222	sleep(5); /* & wait while they die */
954bb1fe BJ	223	if (reboot)
	224	execle(REBOOT, "reboot", 0, 0);
	225	if (halt)
	226	execle(HALT, "halt", 0, 0);
	227	kill(1, SIGTERM); /* sync */
	228	kill(1, SIGTERM); /* sync */
	229	sleep(20);
	230	#else
	231	printf("EXTERMINATE EXTERMINATE\n");
	232	#endif
	233	finish();
	234	}
3ce26e8e KM	235	stogo = sdt - time((time_t *) 0);
3ce26e8e KM	236	if (stogo > 0 && sint > 0)
954bb1fe BJ	237	sleep(sint<stogo ? sint : stogo);
954bb1fe BJ	238	stogo -= sint;
3ce26e8e	239	first = 0;
954bb1fe BJ	240	}
	241	}
	242
	243	time_t
	244	getsdt(s)
3ce26e8e	245	register char *s;
954bb1fe BJ	246	{
	247	time_t t, t1, tim;
	248	register char c;
	249	struct tm *lt;
	250
3ce26e8e KM	251	if (strcmp(s, "now") == 0)
3ce26e8e KM	252	return(nowtime);
954bb1fe BJ	253	if (*s == '+') {
	254	++s;
	255	t = 0;
	256	for (;;) {
	257	c = *s++;
	258	if (!isdigit(c))
	259	break;
	260	t = t * 10 + c - '0';
	261	}
	262	if (t <= 0)
	263	t = 5;
	264	t *= 60;
3ce26e8e	265	tim = time((time_t *) 0) + t;
954bb1fe BJ	266	return(tim);
	267	}
	268	t = 0;
	269	while (strlen(s) > 2 && isdigit(*s))
	270	t = t * 10 + *s++ - '0';
	271	if (*s == ':')
	272	s++;
	273	if (t > 23)
	274	goto badform;
	275	tim = t*60;
	276	t = 0;
	277	while (isdigit(*s))
	278	t = t * 10 + *s++ - '0';
	279	if (t > 59)
	280	goto badform;
	281	tim += t;
	282	tim *= 60;
3ce26e8e	283	t1 = time((time_t *) 0);
954bb1fe BJ	284	lt = localtime(&t1);
	285	t = lt->tm_sec + lt->tm_min60 + lt->tm_hour3600;
	286	if (tim < t \|\| tim >= (24*3600)) {
	287	/* before now or after midnight */
	288	printf("That must be tomorrow\nCan't you wait till then?\n");
	289	finish();
	290	}
3ce26e8e	291	return (t1 + tim - t);
954bb1fe BJ	292	badform:
	293	printf("Bad time format\n");
	294	finish();
	295	}
	296
3ce26e8e	297	warn(term, sdt, now, type)
954bb1fe	298	FILE *term;
3ce26e8e KM	299	time_t sdt, now;
3ce26e8e KM	300	char *type;
954bb1fe BJ	301	{
954bb1fe BJ	302	char *ts;
3ce26e8e	303	register delay = sdt - now;
954bb1fe	304
ab07e5ac BJ	305	if (delay > 8)
	306	while (delay % 5)
	307	delay++;
	308
	309	if (shutter)
	310	fprintf(term,
3ce26e8e KM	311	"\007\007\t* %sSystem shutdown message from %s!%s *\r\n\n",
3ce26e8e KM	312	type, hostname, shutter);
ab07e5ac BJ	313	else
ab07e5ac BJ	314	fprintf(term,
3ce26e8e KM	315	"\007\007\t* %sSystem shutdown message (%s) *\r\n\n",
	316	type, hostname);
	317
954bb1fe	318	ts = ctime(&sdt);
3ce26e8e KM	319	if (delay > 10 MINUTES)
	320	fprintf(term, "System going down at %5.5s\r\n", ts+11);
	321	else if (delay > 95 SECONDS) {
	322	fprintf(term, "System going down in %d minute%s\r\n",
	323	(delay+30)/60, (delay+30)/60 != 1 ? "s" : "");
	324	} else if (delay > 0) {
	325	fprintf(term, "System going down in %d second%s\r\n",
	326	delay, delay != 1 ? "s" : "");
954bb1fe	327	} else
3ce26e8e	328	fprintf(term, "System going down IMMEDIATELY\r\n");
954bb1fe BJ	329	}
	330
	331	nolog(sdt)
3ce26e8e	332	time_t sdt;
954bb1fe BJ	333	{
	334	FILE *nologf;
	335	register char **mess;
	336
3ce26e8e	337	unlink(nologin); /* in case linked to std file */
954bb1fe BJ	338	if ((nologf = fopen(nologin, "w")) != NULL) {
954bb1fe BJ	339	fprintf(nologf, nolog1, (ctime(&sdt)) + 11);
ab07e5ac	340	putc('\t', nologf);
954bb1fe	341	for (mess = nolog2; *mess; mess++)
ab07e5ac BJ	342	fprintf(nologf, " %s", *mess);
ab07e5ac BJ	343	putc('\n', nologf);
954bb1fe BJ	344	fclose(nologf);
	345	}
	346	}
	347
	348	finish()
	349	{
	350	signal(SIGTERM, SIG_IGN);
	351	unlink(nologin);
	352	exit(0);
	353	}
	354
	355	do_nothing()
	356	{
	357
	358	signal(SIGALRM, do_nothing);
	359	}
8fa8eeab BJ	360
	361	/*
	362	* make an entry in the shutdown log
	363	*/
	364
f8969a9a BJ	365	char *days[] = {
	366	"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
	367	};
	368
	369	char *months[] = {
	370	"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep",
	371	"Oct", "Nov", "Dec"
	372	};
	373
	374	log_entry(now)
3ce26e8e	375	time_t now;
8fa8eeab	376	{
f8969a9a BJ	377	register FILE *fp;
	378	register char **mess;
	379	struct tm tm, localtime();
8fa8eeab	380
f8969a9a BJ	381	tm = localtime(&now);
f8969a9a BJ	382	fp = fopen(LOGFILE, "a");
3ce26e8e KM	383	if (fp == NULL) {
3ce26e8e KM	384	printf("Shutdown: log entry failed\n");
3f51f330	385	return;
3ce26e8e	386	}
f8969a9a BJ	387	fseek(fp, 0L, 2);
	388	fprintf(fp, "%02d:%02d %s %s %2d, %4d. Shutdown:", tm->tm_hour,
	389	tm->tm_min, days[tm->tm_wday], months[tm->tm_mon],
	390	tm->tm_mday, tm->tm_year + 1900);
8fa8eeab	391	for (mess = nolog2; *mess; mess++)
f8969a9a	392	fprintf(fp, " %s", *mess);
ab07e5ac	393	if (shutter)
3ce26e8e	394	fprintf(fp, " (by %s!%s)", hostname, shutter);
f8969a9a BJ	395	fputc('\n', fp);
f8969a9a BJ	396	fclose(fp);
8fa8eeab	397	}