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

static	char *sccsid = "@(#)shutdown.c	4.15 (Berkeley) 83/01/16";

#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
 */
#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
594ba9f8	1	static char *sccsid = "@(#)shutdown.c 4.15 (Berkeley) 83/01/16";
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
954bb1fe	16	*/
8fa8eeab BJ	17	#ifdef DEBUG
	18	#define LOGFILE "shutdown.log"
	19	#else
	20	#define LOGFILE "/usr/adm/shutdownlog"
	21	#endif
954bb1fe BJ	22	#define REBOOT "/etc/reboot"
	23	#define HALT "/etc/halt"
	24	#define MAXINTS 20
	25	#define HOURS *3600
	26	#define MINUTES *60
	27	#define SECONDS
ab07e5ac	28	#define NLOG 20 /* no of args possible for message */
954bb1fe	29	#define NOLOGTIME 5 MINUTES
d3818e48	30	#define IGNOREUSER "sleeper"
954bb1fe	31
cf288731 BJ	32	char hostname[32];
cf288731 BJ	33
954bb1fe BJ	34	int do_nothing();
	35	time_t getsdt();
	36
	37	extern char *ctime();
	38	extern struct tm *localtime();
	39
	40	struct utmp utmp;
	41	int sint;
	42	int stogo;
	43	char tpath[] = "/dev/";
	44	int nlflag = 1; /* nolog yet to be done */
	45	int killflg = 1;
	46	int reboot = 0;
	47	int halt = 0;
	48	char term[sizeof tpath + sizeof utmp.ut_line];
	49	char tbuf[BUFSIZ];
	50	char nolog1[] = "\n\nNO LOGINS: System going down at %5.5s\n\n";
	51	char *nolog2[NLOG+1];
	52	#ifdef DEBUG
	53	char nologin[] = "nologin";
	54	#else
	55	char nologin[] = "/etc/nologin";
	56	#endif
3ce26e8e KM	57	time_t nowtime;
3ce26e8e KM	58
954bb1fe BJ	59	struct interval {
	60	int stogo;
	61	int sint;
	62	} interval[] = {
	63	4 HOURS, 1 HOURS,
	64	2 HOURS, 30 MINUTES,
	65	1 HOURS, 15 MINUTES,
	66	30 MINUTES, 10 MINUTES,
	67	15 MINUTES, 5 MINUTES,
8fa8eeab BJ	68	10 MINUTES, 5 MINUTES,
8fa8eeab BJ	69	5 MINUTES, 3 MINUTES,
3ce26e8e KM	70	2 MINUTES, 1 MINUTES,
3ce26e8e KM	71	1 MINUTES, 30 SECONDS,
954bb1fe BJ	72	0 SECONDS, 0 SECONDS
954bb1fe BJ	73	};
3ce26e8e	74
8fa8eeab	75	char shutter, getlogin();
3ce26e8e	76
954bb1fe BJ	77	main(argc,argv)
	78	int argc;
	79	char **argv;
	80	{
	81	register i, ufd;
	82	register char *mess, f;
	83	char *ts;
3ce26e8e	84	time_t sdt;
954bb1fe	85	int h, m;
3ce26e8e	86	int first;
954bb1fe BJ	87	FILE *termf;
954bb1fe BJ	88
8fa8eeab	89	shutter = getlogin();
cf288731	90	gethostname(hostname, sizeof (hostname));
954bb1fe BJ	91	argc--, argv++;
	92	while (argc > 0 && (f = argv[0], *f++ == '-')) {
	93	while (i = *f++) switch (i) {
	94	case 'k':
	95	killflg = 0;
	96	continue;
	97	case 'r':
	98	reboot = 1;
	99	continue;
	100	case 'h':
	101	halt = 1;
	102	continue;
	103	default:
	104	fprintf(stderr, "shutdown: '%c' - unknown flag\n", i);
	105	exit(1);
	106	}
	107	argc--, argv++;
	108	}
	109	if (argc < 1) {
ab07e5ac	110	printf("Usage: %s [ -krh ] shutdowntime [ message ]\n",
954bb1fe BJ	111	argv[0]);
	112	finish();
	113	}
4004e859 BJ	114	if (geteuid()) {
4004e859 BJ	115	fprintf(stderr, "NOT super-user\n");
7b602762 MT	116	finish();
7b602762 MT	117	}
3ce26e8e	118	nowtime = time((time_t *)0);
954bb1fe BJ	119	sdt = getsdt(argv[0]);
	120	argc--, argv++;
	121	i = 0;
	122	while (argc-- > 0)
	123	if (i < NLOG)
	124	nolog2[i++] = *argv++;
	125	nolog2[i] = NULL;
954bb1fe BJ	126	m = ((stogo = sdt - nowtime) + 30)/60;
	127	h = m/60;
	128	m %= 60;
	129	ts = ctime(&sdt);
8fa8eeab	130	printf("Shutdown at %5.5s (in ", ts+11);
954bb1fe BJ	131	if (h > 0)
954bb1fe BJ	132	printf("%d hour%s ", h, h != 1 ? "s" : "");
8fa8eeab	133	printf("%d minute%s) ", m, m != 1 ? "s" : "");
954bb1fe BJ	134	#ifndef DEBUG
	135	signal(SIGHUP, SIG_IGN);
	136	signal(SIGQUIT, SIG_IGN);
	137	signal(SIGINT, SIG_IGN);
	138	#endif
	139	signal(SIGTERM, finish);
	140	signal(SIGALRM, do_nothing);
	141	nice(-20);
ab07e5ac	142	fflush(stdout);
8fa8eeab	143	#ifndef DEBUG
954bb1fe	144	if (i = fork()) {
8fa8eeab	145	printf("[pid %d]\n", i);
954bb1fe BJ	146	exit(0);
954bb1fe BJ	147	}
3ce26e8e KM	148	#else
3ce26e8e KM	149	putc('\n', stdout);
8fa8eeab	150	#endif
954bb1fe BJ	151	sint = 1 HOURS;
954bb1fe BJ	152	f = "";
3ce26e8e KM	153	ufd = open("/etc/utmp",0);
	154	if (ufd < 0) {
	155	perror("shutdown: /etc/utmp");
	156	exit(1);
	157	}
	158	first = 1;
954bb1fe BJ	159	for (;;) {
	160	for (i = 0; stogo <= interval[i].stogo && interval[i].sint; i++)
	161	sint = interval[i].sint;
3ce26e8e KM	162	if (stogo > 0 && (stogo-sint) < interval[i].stogo)
3ce26e8e KM	163	sint = stogo - interval[i].stogo;
954bb1fe BJ	164	if (stogo <= NOLOGTIME && nlflag) {
	165	nlflag = 0;
	166	nolog(sdt);
	167	}
	168	if (sint >= stogo \|\| sint == 0)
	169	f = "FINAL ";
3ce26e8e KM	170	nowtime = time((time_t *) 0);
3ce26e8e KM	171	lseek(ufd, 0L, 0);
954bb1fe	172	while (read(ufd,&utmp,sizeof utmp)==sizeof utmp)
d3818e48 BJ	173	if (utmp.ut_name[0] &&
d3818e48 BJ	174	strncmp(utmp.ut_name, IGNOREUSER, sizeof(utmp.ut_name))) {
954bb1fe BJ	175	strcpy(term, tpath);
	176	strncat(term, utmp.ut_line, sizeof utmp.ut_line);
	177	alarm(3);
	178	#ifdef DEBUG
8fa8eeab	179	if ((termf = stdout) != NULL)
954bb1fe BJ	180	#else
	181	if ((termf = fopen(term, "w")) != NULL)
	182	#endif
	183	{
	184	alarm(0);
	185	setbuf(termf, tbuf);
3ce26e8e KM	186	fprintf(termf, "\n\r\n");
	187	warn(termf, sdt, nowtime, f);
	188	if (first \|\| sdt - nowtime > 1 MINUTES) {
	189	if (*nolog2)
	190	fprintf(termf, "\t...");
954bb1fe	191	for (mess = nolog2; *mess; mess++)
3ce26e8e KM	192	fprintf(termf, " %s", *mess);
	193	}
	194	fputc('\r', termf);
954bb1fe	195	fputc('\n', termf);
8fa8eeab BJ	196	alarm(5);
	197	#ifdef DEBUG
	198	fflush(termf);
	199	#else
954bb1fe	200	fclose(termf);
8fa8eeab	201	#endif
954bb1fe BJ	202	alarm(0);
	203	}
	204	}
3ce26e8e	205	if (stogo <= 0) {
954bb1fe	206	printf("\n\007\007System shutdown time has arrived\007\007\n");
8fa8eeab	207	log_entry(sdt);
954bb1fe BJ	208	unlink(nologin);
	209	if (!killflg) {
	210	printf("but you'll have to do it yourself\n");
	211	finish();
	212	}
	213	#ifndef DEBUG
3ce26e8e KM	214	kill(-1, SIGTERM); /* terminate everyone */
3ce26e8e KM	215	sleep(5); /* & wait while they die */
954bb1fe BJ	216	if (reboot)
	217	execle(REBOOT, "reboot", 0, 0);
	218	if (halt)
	219	execle(HALT, "halt", 0, 0);
	220	kill(1, SIGTERM); /* sync */
	221	kill(1, SIGTERM); /* sync */
	222	sleep(20);
	223	#else
	224	printf("EXTERMINATE EXTERMINATE\n");
	225	#endif
	226	finish();
	227	}
3ce26e8e KM	228	stogo = sdt - time((time_t *) 0);
3ce26e8e KM	229	if (stogo > 0 && sint > 0)
954bb1fe BJ	230	sleep(sint<stogo ? sint : stogo);
954bb1fe BJ	231	stogo -= sint;
3ce26e8e	232	first = 0;
954bb1fe BJ	233	}
	234	}
	235
	236	time_t
	237	getsdt(s)
3ce26e8e	238	register char *s;
954bb1fe BJ	239	{
	240	time_t t, t1, tim;
	241	register char c;
	242	struct tm *lt;
	243
3ce26e8e KM	244	if (strcmp(s, "now") == 0)
3ce26e8e KM	245	return(nowtime);
954bb1fe BJ	246	if (*s == '+') {
	247	++s;
	248	t = 0;
	249	for (;;) {
	250	c = *s++;
	251	if (!isdigit(c))
	252	break;
	253	t = t * 10 + c - '0';
	254	}
	255	if (t <= 0)
	256	t = 5;
	257	t *= 60;
3ce26e8e	258	tim = time((time_t *) 0) + t;
954bb1fe BJ	259	return(tim);
	260	}
	261	t = 0;
	262	while (strlen(s) > 2 && isdigit(*s))
	263	t = t * 10 + *s++ - '0';
	264	if (*s == ':')
	265	s++;
	266	if (t > 23)
	267	goto badform;
	268	tim = t*60;
	269	t = 0;
	270	while (isdigit(*s))
	271	t = t * 10 + *s++ - '0';
	272	if (t > 59)
	273	goto badform;
	274	tim += t;
	275	tim *= 60;
3ce26e8e	276	t1 = time((time_t *) 0);
954bb1fe BJ	277	lt = localtime(&t1);
	278	t = lt->tm_sec + lt->tm_min60 + lt->tm_hour3600;
	279	if (tim < t \|\| tim >= (24*3600)) {
	280	/* before now or after midnight */
	281	printf("That must be tomorrow\nCan't you wait till then?\n");
	282	finish();
	283	}
3ce26e8e	284	return (t1 + tim - t);
954bb1fe BJ	285	badform:
	286	printf("Bad time format\n");
	287	finish();
	288	}
	289
3ce26e8e	290	warn(term, sdt, now, type)
954bb1fe	291	FILE *term;
3ce26e8e KM	292	time_t sdt, now;
3ce26e8e KM	293	char *type;
954bb1fe BJ	294	{
954bb1fe BJ	295	char *ts;
3ce26e8e	296	register delay = sdt - now;
954bb1fe	297
ab07e5ac BJ	298	if (delay > 8)
	299	while (delay % 5)
	300	delay++;
	301
	302	if (shutter)
	303	fprintf(term,
3ce26e8e KM	304	"\007\007\t* %sSystem shutdown message from %s!%s *\r\n\n",
3ce26e8e KM	305	type, hostname, shutter);
ab07e5ac BJ	306	else
ab07e5ac BJ	307	fprintf(term,
3ce26e8e KM	308	"\007\007\t* %sSystem shutdown message (%s) *\r\n\n",
	309	type, hostname);
	310
954bb1fe	311	ts = ctime(&sdt);
3ce26e8e KM	312	if (delay > 10 MINUTES)
	313	fprintf(term, "System going down at %5.5s\r\n", ts+11);
	314	else if (delay > 95 SECONDS) {
	315	fprintf(term, "System going down in %d minute%s\r\n",
	316	(delay+30)/60, (delay+30)/60 != 1 ? "s" : "");
	317	} else if (delay > 0) {
	318	fprintf(term, "System going down in %d second%s\r\n",
	319	delay, delay != 1 ? "s" : "");
954bb1fe	320	} else
3ce26e8e	321	fprintf(term, "System going down IMMEDIATELY\r\n");
954bb1fe BJ	322	}
	323
	324	nolog(sdt)
3ce26e8e	325	time_t sdt;
954bb1fe BJ	326	{
	327	FILE *nologf;
	328	register char **mess;
	329
3ce26e8e	330	unlink(nologin); /* in case linked to std file */
954bb1fe BJ	331	if ((nologf = fopen(nologin, "w")) != NULL) {
954bb1fe BJ	332	fprintf(nologf, nolog1, (ctime(&sdt)) + 11);
ab07e5ac	333	putc('\t', nologf);
954bb1fe	334	for (mess = nolog2; *mess; mess++)
ab07e5ac BJ	335	fprintf(nologf, " %s", *mess);
ab07e5ac BJ	336	putc('\n', nologf);
954bb1fe BJ	337	fclose(nologf);
	338	}
	339	}
	340
	341	finish()
	342	{
	343	signal(SIGTERM, SIG_IGN);
	344	unlink(nologin);
	345	exit(0);
	346	}
	347
	348	do_nothing()
	349	{
	350
	351	signal(SIGALRM, do_nothing);
	352	}
8fa8eeab BJ	353
	354	/*
	355	* make an entry in the shutdown log
	356	*/
	357
f8969a9a BJ	358	char *days[] = {
	359	"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
	360	};
	361
	362	char *months[] = {
	363	"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep",
	364	"Oct", "Nov", "Dec"
	365	};
	366
	367	log_entry(now)
3ce26e8e	368	time_t now;
8fa8eeab	369	{
f8969a9a BJ	370	register FILE *fp;
	371	register char **mess;
	372	struct tm tm, localtime();
8fa8eeab	373
f8969a9a BJ	374	tm = localtime(&now);
f8969a9a BJ	375	fp = fopen(LOGFILE, "a");
3ce26e8e KM	376	if (fp == NULL) {
3ce26e8e KM	377	printf("Shutdown: log entry failed\n");
3f51f330	378	return;
3ce26e8e	379	}
f8969a9a BJ	380	fseek(fp, 0L, 2);
	381	fprintf(fp, "%02d:%02d %s %s %2d, %4d. Shutdown:", tm->tm_hour,
	382	tm->tm_min, days[tm->tm_wday], months[tm->tm_mon],
	383	tm->tm_mday, tm->tm_year + 1900);
8fa8eeab	384	for (mess = nolog2; *mess; mess++)
f8969a9a	385	fprintf(fp, " %s", *mess);
ab07e5ac	386	if (shutter)
3ce26e8e	387	fprintf(fp, " (by %s!%s)", hostname, shutter);
f8969a9a BJ	388	fputc('\n', fp);
f8969a9a BJ	389	fclose(fp);
8fa8eeab	390	}