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

#ifndef lint
static	char *sccsid = "@(#)shutdown.c	4.19 (Berkeley) 83/06/17";
#endif

#include <stdio.h>
#include <ctype.h>
#include <signal.h>
#include <utmp.h>
#include <sys/time.h>
#include <sys/resource.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
 */
#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(SIGTTOU, SIG_IGN);
	signal(SIGTERM, finish);
	signal(SIGALRM, do_nothing);
	setpriority(PRIO_PROCESS, 0, PRIO_MIN);
	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, shutter, hostname);
	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
37c640e2	1	#ifndef lint
b17445e6	2	static char *sccsid = "@(#)shutdown.c 4.19 (Berkeley) 83/06/17";
37c640e2	3	#endif
954bb1fe BJ	4
	5	#include <stdio.h>
	6	#include <ctype.h>
	7	#include <signal.h>
	8	#include <utmp.h>
2c5483d8 SL	9	#include <sys/time.h>
2c5483d8 SL	10	#include <sys/resource.h>
954bb1fe BJ	11	#include <sys/types.h>
	12	/*
	13	* /etc/shutdown when [messages]
	14	*
	15	* allow super users to tell users and remind users
	16	* of iminent shutdown of unix
	17	* and shut it down automatically
	18	* and even reboot or halt the machine if they desire
954bb1fe	19	*/
8fa8eeab BJ	20	#ifdef DEBUG
	21	#define LOGFILE "shutdown.log"
	22	#else
	23	#define LOGFILE "/usr/adm/shutdownlog"
	24	#endif
954bb1fe BJ	25	#define REBOOT "/etc/reboot"
	26	#define HALT "/etc/halt"
	27	#define MAXINTS 20
	28	#define HOURS *3600
	29	#define MINUTES *60
	30	#define SECONDS
ab07e5ac	31	#define NLOG 20 /* no of args possible for message */
954bb1fe	32	#define NOLOGTIME 5 MINUTES
d3818e48	33	#define IGNOREUSER "sleeper"
954bb1fe	34
cf288731 BJ	35	char hostname[32];
cf288731 BJ	36
954bb1fe BJ	37	int do_nothing();
	38	time_t getsdt();
	39
	40	extern char *ctime();
	41	extern struct tm *localtime();
	42
	43	struct utmp utmp;
	44	int sint;
	45	int stogo;
	46	char tpath[] = "/dev/";
	47	int nlflag = 1; /* nolog yet to be done */
	48	int killflg = 1;
	49	int reboot = 0;
	50	int halt = 0;
	51	char term[sizeof tpath + sizeof utmp.ut_line];
	52	char tbuf[BUFSIZ];
	53	char nolog1[] = "\n\nNO LOGINS: System going down at %5.5s\n\n";
	54	char *nolog2[NLOG+1];
	55	#ifdef DEBUG
	56	char nologin[] = "nologin";
	57	#else
	58	char nologin[] = "/etc/nologin";
	59	#endif
3ce26e8e KM	60	time_t nowtime;
3ce26e8e KM	61
954bb1fe BJ	62	struct interval {
	63	int stogo;
	64	int sint;
	65	} interval[] = {
	66	4 HOURS, 1 HOURS,
	67	2 HOURS, 30 MINUTES,
	68	1 HOURS, 15 MINUTES,
	69	30 MINUTES, 10 MINUTES,
	70	15 MINUTES, 5 MINUTES,
8fa8eeab BJ	71	10 MINUTES, 5 MINUTES,
8fa8eeab BJ	72	5 MINUTES, 3 MINUTES,
3ce26e8e KM	73	2 MINUTES, 1 MINUTES,
3ce26e8e KM	74	1 MINUTES, 30 SECONDS,
954bb1fe BJ	75	0 SECONDS, 0 SECONDS
954bb1fe BJ	76	};
3ce26e8e	77
8fa8eeab	78	char shutter, getlogin();
3ce26e8e	79
954bb1fe BJ	80	main(argc,argv)
	81	int argc;
	82	char **argv;
	83	{
	84	register i, ufd;
	85	register char *mess, f;
	86	char *ts;
3ce26e8e	87	time_t sdt;
954bb1fe	88	int h, m;
3ce26e8e	89	int first;
954bb1fe BJ	90	FILE *termf;
954bb1fe BJ	91
8fa8eeab	92	shutter = getlogin();
cf288731	93	gethostname(hostname, sizeof (hostname));
954bb1fe BJ	94	argc--, argv++;
	95	while (argc > 0 && (f = argv[0], *f++ == '-')) {
	96	while (i = *f++) switch (i) {
	97	case 'k':
	98	killflg = 0;
	99	continue;
	100	case 'r':
	101	reboot = 1;
	102	continue;
	103	case 'h':
	104	halt = 1;
	105	continue;
	106	default:
	107	fprintf(stderr, "shutdown: '%c' - unknown flag\n", i);
	108	exit(1);
	109	}
	110	argc--, argv++;
	111	}
	112	if (argc < 1) {
ab07e5ac	113	printf("Usage: %s [ -krh ] shutdowntime [ message ]\n",
954bb1fe BJ	114	argv[0]);
	115	finish();
	116	}
4004e859 BJ	117	if (geteuid()) {
4004e859 BJ	118	fprintf(stderr, "NOT super-user\n");
7b602762 MT	119	finish();
7b602762 MT	120	}
3ce26e8e	121	nowtime = time((time_t *)0);
954bb1fe BJ	122	sdt = getsdt(argv[0]);
	123	argc--, argv++;
	124	i = 0;
	125	while (argc-- > 0)
	126	if (i < NLOG)
	127	nolog2[i++] = *argv++;
	128	nolog2[i] = NULL;
954bb1fe BJ	129	m = ((stogo = sdt - nowtime) + 30)/60;
	130	h = m/60;
	131	m %= 60;
	132	ts = ctime(&sdt);
8fa8eeab	133	printf("Shutdown at %5.5s (in ", ts+11);
954bb1fe BJ	134	if (h > 0)
954bb1fe BJ	135	printf("%d hour%s ", h, h != 1 ? "s" : "");
8fa8eeab	136	printf("%d minute%s) ", m, m != 1 ? "s" : "");
954bb1fe BJ	137	#ifndef DEBUG
	138	signal(SIGHUP, SIG_IGN);
	139	signal(SIGQUIT, SIG_IGN);
	140	signal(SIGINT, SIG_IGN);
	141	#endif
c3b05f55	142	signal(SIGTTOU, SIG_IGN);
954bb1fe BJ	143	signal(SIGTERM, finish);
954bb1fe BJ	144	signal(SIGALRM, do_nothing);
2c5483d8	145	setpriority(PRIO_PROCESS, 0, PRIO_MIN);
ab07e5ac	146	fflush(stdout);
8fa8eeab	147	#ifndef DEBUG
954bb1fe	148	if (i = fork()) {
8fa8eeab	149	printf("[pid %d]\n", i);
954bb1fe BJ	150	exit(0);
954bb1fe BJ	151	}
3ce26e8e KM	152	#else
3ce26e8e KM	153	putc('\n', stdout);
8fa8eeab	154	#endif
954bb1fe BJ	155	sint = 1 HOURS;
954bb1fe BJ	156	f = "";
3ce26e8e KM	157	ufd = open("/etc/utmp",0);
	158	if (ufd < 0) {
	159	perror("shutdown: /etc/utmp");
	160	exit(1);
	161	}
	162	first = 1;
954bb1fe BJ	163	for (;;) {
	164	for (i = 0; stogo <= interval[i].stogo && interval[i].sint; i++)
	165	sint = interval[i].sint;
3ce26e8e KM	166	if (stogo > 0 && (stogo-sint) < interval[i].stogo)
3ce26e8e KM	167	sint = stogo - interval[i].stogo;
954bb1fe BJ	168	if (stogo <= NOLOGTIME && nlflag) {
	169	nlflag = 0;
	170	nolog(sdt);
	171	}
	172	if (sint >= stogo \|\| sint == 0)
	173	f = "FINAL ";
3ce26e8e KM	174	nowtime = time((time_t *) 0);
3ce26e8e KM	175	lseek(ufd, 0L, 0);
954bb1fe	176	while (read(ufd,&utmp,sizeof utmp)==sizeof utmp)
d3818e48 BJ	177	if (utmp.ut_name[0] &&
d3818e48 BJ	178	strncmp(utmp.ut_name, IGNOREUSER, sizeof(utmp.ut_name))) {
954bb1fe BJ	179	strcpy(term, tpath);
	180	strncat(term, utmp.ut_line, sizeof utmp.ut_line);
	181	alarm(3);
	182	#ifdef DEBUG
8fa8eeab	183	if ((termf = stdout) != NULL)
954bb1fe BJ	184	#else
	185	if ((termf = fopen(term, "w")) != NULL)
	186	#endif
	187	{
	188	alarm(0);
	189	setbuf(termf, tbuf);
3ce26e8e KM	190	fprintf(termf, "\n\r\n");
	191	warn(termf, sdt, nowtime, f);
	192	if (first \|\| sdt - nowtime > 1 MINUTES) {
	193	if (*nolog2)
	194	fprintf(termf, "\t...");
954bb1fe	195	for (mess = nolog2; *mess; mess++)
3ce26e8e KM	196	fprintf(termf, " %s", *mess);
	197	}
	198	fputc('\r', termf);
954bb1fe	199	fputc('\n', termf);
8fa8eeab BJ	200	alarm(5);
	201	#ifdef DEBUG
	202	fflush(termf);
	203	#else
954bb1fe	204	fclose(termf);
8fa8eeab	205	#endif
954bb1fe BJ	206	alarm(0);
	207	}
	208	}
3ce26e8e	209	if (stogo <= 0) {
954bb1fe	210	printf("\n\007\007System shutdown time has arrived\007\007\n");
8fa8eeab	211	log_entry(sdt);
954bb1fe BJ	212	unlink(nologin);
	213	if (!killflg) {
	214	printf("but you'll have to do it yourself\n");
	215	finish();
	216	}
	217	#ifndef DEBUG
3ce26e8e KM	218	kill(-1, SIGTERM); /* terminate everyone */
3ce26e8e KM	219	sleep(5); /* & wait while they die */
954bb1fe BJ	220	if (reboot)
	221	execle(REBOOT, "reboot", 0, 0);
	222	if (halt)
	223	execle(HALT, "halt", 0, 0);
	224	kill(1, SIGTERM); /* sync */
	225	kill(1, SIGTERM); /* sync */
	226	sleep(20);
	227	#else
	228	printf("EXTERMINATE EXTERMINATE\n");
	229	#endif
	230	finish();
	231	}
3ce26e8e KM	232	stogo = sdt - time((time_t *) 0);
3ce26e8e KM	233	if (stogo > 0 && sint > 0)
954bb1fe BJ	234	sleep(sint<stogo ? sint : stogo);
954bb1fe BJ	235	stogo -= sint;
3ce26e8e	236	first = 0;
954bb1fe BJ	237	}
	238	}
	239
	240	time_t
	241	getsdt(s)
3ce26e8e	242	register char *s;
954bb1fe BJ	243	{
	244	time_t t, t1, tim;
	245	register char c;
	246	struct tm *lt;
	247
3ce26e8e KM	248	if (strcmp(s, "now") == 0)
3ce26e8e KM	249	return(nowtime);
954bb1fe BJ	250	if (*s == '+') {
	251	++s;
	252	t = 0;
	253	for (;;) {
	254	c = *s++;
	255	if (!isdigit(c))
	256	break;
	257	t = t * 10 + c - '0';
	258	}
	259	if (t <= 0)
	260	t = 5;
	261	t *= 60;
3ce26e8e	262	tim = time((time_t *) 0) + t;
954bb1fe BJ	263	return(tim);
	264	}
	265	t = 0;
	266	while (strlen(s) > 2 && isdigit(*s))
	267	t = t * 10 + *s++ - '0';
	268	if (*s == ':')
	269	s++;
	270	if (t > 23)
	271	goto badform;
	272	tim = t*60;
	273	t = 0;
	274	while (isdigit(*s))
	275	t = t * 10 + *s++ - '0';
	276	if (t > 59)
	277	goto badform;
	278	tim += t;
	279	tim *= 60;
3ce26e8e	280	t1 = time((time_t *) 0);
954bb1fe BJ	281	lt = localtime(&t1);
	282	t = lt->tm_sec + lt->tm_min60 + lt->tm_hour3600;
	283	if (tim < t \|\| tim >= (24*3600)) {
	284	/* before now or after midnight */
	285	printf("That must be tomorrow\nCan't you wait till then?\n");
	286	finish();
	287	}
3ce26e8e	288	return (t1 + tim - t);
954bb1fe BJ	289	badform:
	290	printf("Bad time format\n");
	291	finish();
	292	}
	293
3ce26e8e	294	warn(term, sdt, now, type)
954bb1fe	295	FILE *term;
3ce26e8e KM	296	time_t sdt, now;
3ce26e8e KM	297	char *type;
954bb1fe BJ	298	{
954bb1fe BJ	299	char *ts;
3ce26e8e	300	register delay = sdt - now;
954bb1fe	301
ab07e5ac BJ	302	if (delay > 8)
	303	while (delay % 5)
	304	delay++;
	305
	306	if (shutter)
	307	fprintf(term,
b17445e6 BJ	308	"\007\007\t* %sSystem shutdown message from %s@%s *\r\n\n",
b17445e6 BJ	309	type, shutter, hostname);
ab07e5ac BJ	310	else
ab07e5ac BJ	311	fprintf(term,
3ce26e8e KM	312	"\007\007\t* %sSystem shutdown message (%s) *\r\n\n",
	313	type, hostname);
	314
954bb1fe	315	ts = ctime(&sdt);
3ce26e8e KM	316	if (delay > 10 MINUTES)
	317	fprintf(term, "System going down at %5.5s\r\n", ts+11);
	318	else if (delay > 95 SECONDS) {
	319	fprintf(term, "System going down in %d minute%s\r\n",
	320	(delay+30)/60, (delay+30)/60 != 1 ? "s" : "");
	321	} else if (delay > 0) {
	322	fprintf(term, "System going down in %d second%s\r\n",
	323	delay, delay != 1 ? "s" : "");
954bb1fe	324	} else
3ce26e8e	325	fprintf(term, "System going down IMMEDIATELY\r\n");
954bb1fe BJ	326	}
	327
	328	nolog(sdt)
3ce26e8e	329	time_t sdt;
954bb1fe BJ	330	{
	331	FILE *nologf;
	332	register char **mess;
	333
3ce26e8e	334	unlink(nologin); /* in case linked to std file */
954bb1fe BJ	335	if ((nologf = fopen(nologin, "w")) != NULL) {
954bb1fe BJ	336	fprintf(nologf, nolog1, (ctime(&sdt)) + 11);
ab07e5ac	337	putc('\t', nologf);
954bb1fe	338	for (mess = nolog2; *mess; mess++)
ab07e5ac BJ	339	fprintf(nologf, " %s", *mess);
ab07e5ac BJ	340	putc('\n', nologf);
954bb1fe BJ	341	fclose(nologf);
	342	}
	343	}
	344
	345	finish()
	346	{
	347	signal(SIGTERM, SIG_IGN);
	348	unlink(nologin);
	349	exit(0);
	350	}
	351
	352	do_nothing()
	353	{
	354
	355	signal(SIGALRM, do_nothing);
	356	}
8fa8eeab BJ	357
	358	/*
	359	* make an entry in the shutdown log
	360	*/
	361
f8969a9a BJ	362	char *days[] = {
	363	"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
	364	};
	365
	366	char *months[] = {
	367	"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep",
	368	"Oct", "Nov", "Dec"
	369	};
	370
	371	log_entry(now)
3ce26e8e	372	time_t now;
8fa8eeab	373	{
f8969a9a BJ	374	register FILE *fp;
	375	register char **mess;
	376	struct tm tm, localtime();
8fa8eeab	377
f8969a9a BJ	378	tm = localtime(&now);
f8969a9a BJ	379	fp = fopen(LOGFILE, "a");
3ce26e8e KM	380	if (fp == NULL) {
3ce26e8e KM	381	printf("Shutdown: log entry failed\n");
3f51f330	382	return;
3ce26e8e	383	}
f8969a9a BJ	384	fseek(fp, 0L, 2);
	385	fprintf(fp, "%02d:%02d %s %s %2d, %4d. Shutdown:", tm->tm_hour,
	386	tm->tm_min, days[tm->tm_wday], months[tm->tm_mon],
	387	tm->tm_mday, tm->tm_year + 1900);
8fa8eeab	388	for (mess = nolog2; *mess; mess++)
f8969a9a	389	fprintf(fp, " %s", *mess);
ab07e5ac	390	if (shutter)
3ce26e8e	391	fprintf(fp, " (by %s!%s)", hostname, shutter);
f8969a9a BJ	392	fputc('\n', fp);
f8969a9a BJ	393	fclose(fp);
8fa8eeab	394	}