[unix-history] / usr / src / sbin / dump / optr.c

/*-
 * Copyright (c) 1980, 1988 The Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#ifndef lint
static char sccsid[] = "@(#)optr.c	5.16 (Berkeley) %G%";
#endif /* not lint */

#include <sys/param.h>
#include <sys/wait.h>
#include <sys/time.h>

#include <errno.h>
#include <fstab.h>
#include <grp.h>
#include <signal.h>
#include <stdio.h>
#ifdef __STDC__
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#endif
#include <tzfile.h>
#ifdef __STDC__
#include <unistd.h>
#endif
#include <utmp.h>
#ifndef __STDC__
#include <varargs.h>
#endif

#include "dump.h"
#include "pathnames.h"

void	alarmcatch __P((/* int, int */));
int	datesort __P((const void *, const void *));
static	void sendmes __P((char *, char *));

/*
 *	Query the operator; This previously-fascist piece of code
 *	no longer requires an exact response.
 *	It is intended to protect dump aborting by inquisitive
 *	people banging on the console terminal to see what is
 *	happening which might cause dump to croak, destroying
 *	a large number of hours of work.
 *
 *	Every 2 minutes we reprint the message, alerting others
 *	that dump needs attention.
 */
static	int timeout;
static	char *attnmessage;		/* attention message */

int
query(question)
	char	*question;
{
	char	replybuffer[64];
	int	back, errcount;
	FILE	*mytty;

	if ((mytty = fopen(_PATH_TTY, "r")) == NULL)
		quit("fopen on %s fails: %s\n", _PATH_TTY, strerror(errno));
	attnmessage = question;
	timeout = 0;
	alarmcatch();
	back = -1;
	errcount = 0;
	do {
		if (fgets(replybuffer, 63, mytty) == NULL) {
			clearerr(mytty);
			if (++errcount > 30)	/* XXX	ugly */
				quit("excessive operator query failures\n");
		} else if (replybuffer[0] == 'y' || replybuffer[0] == 'Y') {
			back = 1;
		} else if (replybuffer[0] == 'n' || replybuffer[0] == 'N') {
			back = 0;
		} else {
			(void) fprintf(stderr,
			    "  DUMP: \"Yes\" or \"No\"?\n");
			(void) fprintf(stderr,
			    "  DUMP: %s: (\"yes\" or \"no\") ", question);
		}
	} while (back < 0);

	/*
	 *	Turn off the alarm, and reset the signal to trap out..
	 */
	(void) alarm(0);
	if (signal(SIGALRM, sig) == SIG_IGN)
		signal(SIGALRM, SIG_IGN);
	(void) fclose(mytty);
	return(back);
}

char lastmsg[100];

/*
 *	Alert the console operator, and enable the alarm clock to
 *	sleep for 2 minutes in case nobody comes to satisfy dump
 */
void
alarmcatch()
{
	if (notify == 0) {
		if (timeout == 0)
			(void) fprintf(stderr,
			    "  DUMP: %s: (\"yes\" or \"no\") ",
			    attnmessage);
		else
			msgtail("\7\7");
	} else {
		if (timeout) {
			msgtail("\n");
			broadcast("");		/* just print last msg */
		}
		(void) fprintf(stderr,"  DUMP: %s: (\"yes\" or \"no\") ",
		    attnmessage);
	}
	signal(SIGALRM, alarmcatch);
	(void) alarm(120);
	timeout = 1;
}

/*
 *	Here if an inquisitive operator interrupts the dump program
 */
void
interrupt(signo)
	int signo;
{
	msg("Interrupt received.\n");
	if (query("Do you want to abort dump?"))
		dumpabort(0);
}

/*
 *	The following variables and routines manage alerting
 *	operators to the status of dump.
 *	This works much like wall(1) does.
 */
struct	group *gp;

/*
 *	Get the names from the group entry "operator" to notify.
 */	
void
set_operators()
{
	if (!notify)		/*not going to notify*/
		return;
	gp = getgrnam(OPGRENT);
	(void) endgrent();
	if (gp == NULL) {
		msg("No group entry for %s.\n", OPGRENT);
		notify = 0;
		return;
	}
}

struct tm *localclock;

/*
 *	We fork a child to do the actual broadcasting, so
 *	that the process control groups are not messed up
 */
void
broadcast(message)
	char	*message;
{
	time_t		clock;
	FILE	*f_utmp;
	struct	utmp	utmp;
	char	**np;
	int	pid, s;

	if (!notify || gp == NULL)
		return;

	switch (pid = fork()) {
	case -1:
		return;
	case 0:
		break;
	default:
		while (wait(&s) != pid)
			continue;
		return;
	}

	clock = time((time_t *)0);
	localclock = localtime(&clock);

	if ((f_utmp = fopen(_PATH_UTMP, "r")) == NULL) {
		msg("Cannot open %s: %s\n", _PATH_UTMP, strerror(errno));
		return;
	}

	while (!feof(f_utmp)) {
		if (fread((char *) &utmp, sizeof (struct utmp), 1, f_utmp) != 1)
			break;
		if (utmp.ut_name[0] == 0)
			continue;
		for (np = gp->gr_mem; *np; np++) {
			if (strncmp(*np, utmp.ut_name, sizeof(utmp.ut_name)) != 0)
				continue;
			/*
			 *	Do not send messages to operators on dialups
			 */
			if (strncmp(utmp.ut_line, DIALUP, strlen(DIALUP)) == 0)
				continue;
#ifdef DEBUG
			msg("Message to %s at %s\n", *np, utmp.ut_line);
#endif
			sendmes(utmp.ut_line, message);
		}
	}
	(void) fclose(f_utmp);
	Exit(0);	/* the wait in this same routine will catch this */
	/* NOTREACHED */
}

static void
sendmes(tty, message)
	char *tty, *message;
{
	char t[50], buf[BUFSIZ];
	register char *cp;
	int lmsg = 1;
	FILE *f_tty;

	(void) strcpy(t, _PATH_DEV);
	(void) strcat(t, tty);

	if ((f_tty = fopen(t, "w")) != NULL) {
		setbuf(f_tty, buf);
		(void) fprintf(f_tty,
		    "\n\
\7\7\7Message from the dump program to all operators at %d:%02d ...\r\n\n\
DUMP: NEEDS ATTENTION: ",
		    localclock->tm_hour, localclock->tm_min);
		for (cp = lastmsg; ; cp++) {
			if (*cp == '\0') {
				if (lmsg) {
					cp = message;
					if (*cp == '\0')
						break;
					lmsg = 0;
				} else
					break;
			}
			if (*cp == '\n')
				(void) putc('\r', f_tty);
			(void) putc(*cp, f_tty);
		}
		(void) fclose(f_tty);
	}
}

/*
 *	print out an estimate of the amount of time left to do the dump
 */

time_t	tschedule = 0;

void
timeest()
{
	time_t	tnow, deltat;

	(void) time((time_t *) &tnow);
	if (tnow >= tschedule) {
		tschedule = tnow + 300;
		if (blockswritten < 500)
			return;	
		deltat = tstart_writing - tnow +
			(1.0 * (tnow - tstart_writing))
			/ blockswritten * tapesize;
		msg("%3.2f%% done, finished in %d:%02d\n",
			(blockswritten * 100.0) / tapesize,
			deltat / 3600, (deltat % 3600) / 60);
	}
}

void
#if __STDC__
msg(const char *fmt, ...)
#else
msg(fmt, va_alist)
	char *fmt;
	va_dcl
#endif
{
	va_list ap;

	(void) fprintf(stderr,"  DUMP: ");
#ifdef TDEBUG
	(void) fprintf(stderr, "pid=%d ", getpid());
#endif
#if __STDC__
	va_start(ap, fmt);
#else
	va_start(ap);
#endif
	(void) vfprintf(stderr, fmt, ap);
	(void) fflush(stdout);
	(void) fflush(stderr);
	(void) vsprintf(lastmsg, fmt, ap);
	va_end(ap);
}

void
#if __STDC__
msgtail(const char *fmt, ...)
#else
msgtail(fmt, va_alist)
	char *fmt;
	va_dcl
#endif
{
	va_list ap;
#if __STDC__
	va_start(ap, fmt);
#else
	va_start(ap);
#endif
	(void) vfprintf(stderr, fmt, ap);
	va_end(ap);
}

void
#if __STDC__
quit(const char *fmt, ...)
#else
quit(fmt, va_alist)
	char *fmt;
	va_dcl
#endif
{
	va_list ap;

	(void) fprintf(stderr,"  DUMP: ");
#ifdef TDEBUG
	(void) fprintf(stderr, "pid=%d ", getpid());
#endif
#if __STDC__
	va_start(ap, fmt);
#else
	va_start(ap);
#endif
	(void) vfprintf(stderr, fmt, ap);
	va_end(ap);
	(void) fflush(stdout);
	(void) fflush(stderr);
	dumpabort(0);
}

/*
 *	Tell the operator what has to be done;
 *	we don't actually do it
 */

struct fstab *
allocfsent(fs)
	register struct fstab *fs;
{
	register struct fstab *new;

	new = (struct fstab *)malloc(sizeof (*fs));
	if (new == NULL ||
	    (new->fs_file = strdup(fs->fs_file)) == NULL ||
	    (new->fs_type = strdup(fs->fs_type)) == NULL ||
	    (new->fs_spec = strdup(fs->fs_spec)) == NULL)
		quit("%s\n", strerror(errno));
	new->fs_passno = fs->fs_passno;
	new->fs_freq = fs->fs_freq;
	return (new);
}

struct	pfstab {
	struct	pfstab *pf_next;
	struct	fstab *pf_fstab;
};

static	struct pfstab *table;

void
getfstab()
{
	register struct fstab *fs;
	register struct pfstab *pf;

	if (setfsent() == 0) {
		msg("Can't open %s for dump table information: %s\n",
		    _PATH_FSTAB, strerror(errno));
		return;
	}
	while ((fs = getfsent()) != NULL) {
		if (strcmp(fs->fs_type, FSTAB_RW) &&
		    strcmp(fs->fs_type, FSTAB_RO) &&
		    strcmp(fs->fs_type, FSTAB_RQ))
			continue;
		fs = allocfsent(fs);
		if ((pf = (struct pfstab *)malloc(sizeof (*pf))) == NULL)
			quit("%s\n", strerror(errno));
		pf->pf_fstab = fs;
		pf->pf_next = table;
		table = pf;
	}
	(void) endfsent();
}

/*
 * Search in the fstab for a file name.
 * This file name can be either the special or the path file name.
 *
 * The entries in the fstab are the BLOCK special names, not the
 * character special names.
 * The caller of fstabsearch assures that the character device
 * is dumped (that is much faster)
 *
 * The file name can omit the leading '/'.
 */
struct fstab *
fstabsearch(key)
	char *key;
{
	register struct pfstab *pf;
	register struct fstab *fs;

	for (pf = table; pf != NULL; pf = pf->pf_next) {
		fs = pf->pf_fstab;
		if (strcmp(fs->fs_file, key) == 0 ||
		    strcmp(fs->fs_spec, key) == 0 ||
		    strcmp(rawname(fs->fs_spec), key) == 0)
			return (fs);
		if (key[0] != '/') {
			if (*fs->fs_spec == '/' &&
			    strcmp(fs->fs_spec + 1, key) == 0)
				return (fs);
			if (*fs->fs_file == '/' &&
			    strcmp(fs->fs_file + 1, key) == 0)
				return (fs);
		}
	}
	return (NULL);
}

/*
 *	Tell the operator what to do
 */
void
lastdump(arg)
	char	arg;	/* w ==> just what to do; W ==> most recent dumps */
{
	register int i;
	register struct fstab *dt;
	register struct dumpdates *dtwalk;
	char *lastname, *date;
	int dumpme;
	time_t tnow;

	(void) time(&tnow);
	getfstab();		/* /etc/fstab input */
	initdumptimes();	/* /etc/dumpdates input */
	qsort((char *) ddatev, nddates, sizeof(struct dumpdates *), datesort);

	if (arg == 'w')
		(void) printf("Dump these file systems:\n");
	else
		(void) printf("Last dump(s) done (Dump '>' file systems):\n");
	lastname = "??";
	ITITERATE(i, dtwalk) {
		if (strncmp(lastname, dtwalk->dd_name,
		    sizeof(dtwalk->dd_name)) == 0)
			continue;
		date = (char *)ctime(&dtwalk->dd_ddate);
		date[16] = '\0';	/* blast away seconds and year */
		lastname = dtwalk->dd_name;
		dt = fstabsearch(dtwalk->dd_name);
		dumpme = (dt != NULL &&
		    dt->fs_freq != 0 &&
		    dtwalk->dd_ddate < tnow - (dt->fs_freq * SECSPERDAY));
		if (arg != 'w' || dumpme)
			(void) printf(
			    "%c %8s\t(%6s) Last dump: Level %c, Date %s\n",
			    dumpme && (arg != 'w') ? '>' : ' ',
			    dtwalk->dd_name,
			    dt ? dt->fs_file : "",
			    dtwalk->dd_level,
			    date);
	}
}

int
datesort(a1, a2)
	const void *a1, *a2;
{
	struct dumpdates *d1 = *(struct dumpdates **)a1;
	struct dumpdates *d2 = *(struct dumpdates **)a2;
	int diff;

	diff = strncmp(d1->dd_name, d2->dd_name, sizeof(d1->dd_name));
	if (diff == 0)
		return (d2->dd_ddate - d1->dd_ddate);
	return (diff);
}
Commit	Line	Data
461723e7 KM	1	/*-
	2	* Copyright (c) 1980, 1988 The Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* %sccs.include.redist.c%
76797561 DF	6	*/
	7
	8	#ifndef lint
3a399238	9	static char sccsid[] = "@(#)optr.c 5.16 (Berkeley) %G%";
e6ee6826	10	#endif /* not lint */
661913e7	11
cdce5e6c KM	12	#include <sys/param.h>
cdce5e6c KM	13	#include <sys/wait.h>
cdce5e6c	14	#include <sys/time.h>
0289322c KM	15
0289322c KM	16	#include <errno.h>
13298603	17	#include <fstab.h>
e6ee6826	18	#include <grp.h>
0289322c KM	19	#include <signal.h>
0289322c KM	20	#include <stdio.h>
13298603	21	#ifdef __STDC__
13298603 KB	22	#include <stdlib.h>
13298603 KB	23	#include <string.h>
226b33ce	24	#include <stdarg.h>
0289322c KM	25	#endif
	26	#include <tzfile.h>
	27	#ifdef __STDC__
	28	#include <unistd.h>
	29	#endif
	30	#include <utmp.h>
	31	#ifndef __STDC__
226b33ce	32	#include <varargs.h>
13298603	33	#endif
0289322c	34
13298603	35	#include "dump.h"
d6c8f812	36	#include "pathnames.h"
f3869107	37
0289322c KM	38	void alarmcatch __P((/* int, int */));
	39	int datesort __P((const void , const void ));
	40	static void sendmes __P((char , char ));
e6ee6826	41
f3869107	42	/*
d6c8f812 KM	43	* Query the operator; This previously-fascist piece of code
d6c8f812 KM	44	* no longer requires an exact response.
f3869107 BJ	45	* It is intended to protect dump aborting by inquisitive
	46	* people banging on the console terminal to see what is
	47	* happening which might cause dump to croak, destroying
	48	* a large number of hours of work.
	49	*
	50	* Every 2 minutes we reprint the message, alerting others
	51	* that dump needs attention.
	52	*/
0289322c KM	53	static int timeout;
0289322c KM	54	static char attnmessage; / attention message */
e6ee6826 CT	55
e6ee6826 CT	56	int
f3869107 BJ	57	query(question)
	58	char *question;
	59	{
	60	char replybuffer[64];
e6ee6826	61	int back, errcount;
f3869107 BJ	62	FILE *mytty;
f3869107 BJ	63
e6ee6826 CT	64	if ((mytty = fopen(_PATH_TTY, "r")) == NULL)
e6ee6826 CT	65	quit("fopen on %s fails: %s\n", _PATH_TTY, strerror(errno));
f3869107 BJ	66	attnmessage = question;
	67	timeout = 0;
	68	alarmcatch();
e6ee6826 CT	69	back = -1;
	70	errcount = 0;
	71	do {
	72	if (fgets(replybuffer, 63, mytty) == NULL) {
	73	clearerr(mytty);
	74	if (++errcount > 30) /* XXX ugly */
	75	quit("excessive operator query failures\n");
d6c8f812	76	} else if (replybuffer[0] == 'y' \|\| replybuffer[0] == 'Y') {
e6ee6826	77	back = 1;
d6c8f812	78	} else if (replybuffer[0] == 'n' \|\| replybuffer[0] == 'N') {
e6ee6826	79	back = 0;
f3869107	80	} else {
e6ee6826 CT	81	(void) fprintf(stderr,
	82	" DUMP: \"Yes\" or \"No\"?\n");
	83	(void) fprintf(stderr,
	84	" DUMP: %s: (\"yes\" or \"no\") ", question);
f3869107	85	}
e6ee6826 CT	86	} while (back < 0);
e6ee6826 CT	87
f3869107 BJ	88	/*
	89	* Turn off the alarm, and reset the signal to trap out..
	90	*/
e9345f05	91	(void) alarm(0);
71b2d5ef	92	if (signal(SIGALRM, sig) == SIG_IGN)
f3869107	93	signal(SIGALRM, SIG_IGN);
e9345f05	94	(void) fclose(mytty);
f3869107 BJ	95	return(back);
f3869107 BJ	96	}
d6c8f812 KM	97
	98	char lastmsg[100];
	99
f3869107 BJ	100	/*
	101	* Alert the console operator, and enable the alarm clock to
	102	* sleep for 2 minutes in case nobody comes to satisfy dump
	103	*/
0289322c	104	void
f3869107 BJ	105	alarmcatch()
f3869107 BJ	106	{
d6c8f812 KM	107	if (notify == 0) {
d6c8f812 KM	108	if (timeout == 0)
e6ee6826 CT	109	(void) fprintf(stderr,
e6ee6826 CT	110	" DUMP: %s: (\"yes\" or \"no\") ",
d6c8f812 KM	111	attnmessage);
	112	else
	113	msgtail("\7\7");
	114	} else {
	115	if (timeout) {
	116	msgtail("\n");
	117	broadcast(""); /* just print last msg */
	118	}
e6ee6826	119	(void) fprintf(stderr," DUMP: %s: (\"yes\" or \"no\") ",
d6c8f812 KM	120	attnmessage);
d6c8f812 KM	121	}
f3869107	122	signal(SIGALRM, alarmcatch);
e9345f05	123	(void) alarm(120);
f3869107 BJ	124	timeout = 1;
f3869107 BJ	125	}
e6ee6826	126
f3869107 BJ	127	/*
	128	* Here if an inquisitive operator interrupts the dump program
	129	*/
e6ee6826	130	void
71b2d5ef KB	131	interrupt(signo)
71b2d5ef KB	132	int signo;
f3869107	133	{
e10aef87 KM	134	msg("Interrupt received.\n");
e10aef87 KM	135	if (query("Do you want to abort dump?"))
71b2d5ef	136	dumpabort(0);
f3869107 BJ	137	}
	138
	139	/*
	140	* The following variables and routines manage alerting
	141	* operators to the status of dump.
	142	* This works much like wall(1) does.
	143	*/
e6ee6826	144	struct group *gp;
f3869107 BJ	145
	146	/*
	147	* Get the names from the group entry "operator" to notify.
	148	*/
e6ee6826	149	void
f3869107 BJ	150	set_operators()
	151	{
	152	if (!notify) /not going to notify/
	153	return;
	154	gp = getgrnam(OPGRENT);
e9345f05	155	(void) endgrent();
e6ee6826 CT	156	if (gp == NULL) {
e6ee6826 CT	157	msg("No group entry for %s.\n", OPGRENT);
f3869107 BJ	158	notify = 0;
	159	return;
	160	}
	161	}
	162
f3869107 BJ	163	struct tm *localclock;
	164
	165	/*
	166	* We fork a child to do the actual broadcasting, so
	167	* that the process control groups are not messed up
	168	*/
e6ee6826	169	void
f3869107 BJ	170	broadcast(message)
	171	char *message;
	172	{
	173	time_t clock;
	174	FILE *f_utmp;
	175	struct utmp utmp;
f3869107 BJ	176	char **np;
	177	int pid, s;
	178
e6ee6826 CT	179	if (!notify \|\| gp == NULL)
	180	return;
	181
f3869107 BJ	182	switch (pid = fork()) {
	183	case -1:
	184	return;
	185	case 0:
	186	break;
	187	default:
	188	while (wait(&s) != pid)
	189	continue;
	190	return;
	191	}
	192
e9345f05	193	clock = time((time_t *)0);
f3869107 BJ	194	localclock = localtime(&clock);
f3869107 BJ	195
e6ee6826 CT	196	if ((f_utmp = fopen(_PATH_UTMP, "r")) == NULL) {
e6ee6826 CT	197	msg("Cannot open %s: %s\n", _PATH_UTMP, strerror(errno));
f3869107 BJ	198	return;
	199	}
	200
e6ee6826	201	while (!feof(f_utmp)) {
e9345f05	202	if (fread((char *) &utmp, sizeof (struct utmp), 1, f_utmp) != 1)
f3869107 BJ	203	break;
	204	if (utmp.ut_name[0] == 0)
	205	continue;
e6ee6826	206	for (np = gp->gr_mem; *np; np++) {
f3869107 BJ	207	if (strncmp(*np, utmp.ut_name, sizeof(utmp.ut_name)) != 0)
	208	continue;
	209	/*
	210	* Do not send messages to operators on dialups
	211	*/
	212	if (strncmp(utmp.ut_line, DIALUP, strlen(DIALUP)) == 0)
	213	continue;
	214	#ifdef DEBUG
e6ee6826 CT	215	msg("Message to %s at %s\n", *np, utmp.ut_line);
e6ee6826 CT	216	#endif
f3869107 BJ	217	sendmes(utmp.ut_line, message);
	218	}
	219	}
e6ee6826	220	(void) fclose(f_utmp);
f3869107 BJ	221	Exit(0); /* the wait in this same routine will catch this */
	222	/* NOTREACHED */
	223	}
	224
e6ee6826	225	static void
f3869107	226	sendmes(tty, message)
661913e7	227	char tty, message;
f3869107 BJ	228	{
	229	char t[50], buf[BUFSIZ];
	230	register char *cp;
d6c8f812	231	int lmsg = 1;
f3869107 BJ	232	FILE *f_tty;
f3869107 BJ	233
e6ee6826 CT	234	(void) strcpy(t, _PATH_DEV);
e6ee6826 CT	235	(void) strcat(t, tty);
f3869107	236
e6ee6826	237	if ((f_tty = fopen(t, "w")) != NULL) {
f3869107	238	setbuf(f_tty, buf);
e6ee6826 CT	239	(void) fprintf(f_tty,
	240	"\n\
	241	\7\7\7Message from the dump program to all operators at %d:%02d ...\r\n\n\
	242	DUMP: NEEDS ATTENTION: ",
	243	localclock->tm_hour, localclock->tm_min);
d6c8f812 KM	244	for (cp = lastmsg; ; cp++) {
	245	if (*cp == '\0') {
	246	if (lmsg) {
	247	cp = message;
	248	if (*cp == '\0')
	249	break;
	250	lmsg = 0;
	251	} else
	252	break;
	253	}
	254	if (*cp == '\n')
e6ee6826 CT	255	(void) putc('\r', f_tty);
e6ee6826 CT	256	(void) putc(*cp, f_tty);
f3869107	257	}
e6ee6826	258	(void) fclose(f_tty);
f3869107 BJ	259	}
	260	}
	261
	262	/*
	263	* print out an estimate of the amount of time left to do the dump
	264	*/
	265
	266	time_t tschedule = 0;
	267
e6ee6826	268	void
f3869107 BJ	269	timeest()
	270	{
	271	time_t tnow, deltat;
	272
e9345f05	273	(void) time((time_t *) &tnow);
e6ee6826	274	if (tnow >= tschedule) {
f3869107 BJ	275	tschedule = tnow + 300;
	276	if (blockswritten < 500)
	277	return;
	278	deltat = tstart_writing - tnow +
d70200c6 KM	279	(1.0 * (tnow - tstart_writing))
d70200c6 KM	280	/ blockswritten * tapesize;
f3869107	281	msg("%3.2f%% done, finished in %d:%02d\n",
d70200c6 KM	282	(blockswritten * 100.0) / tapesize,
d70200c6 KM	283	deltat / 3600, (deltat % 3600) / 60);
f3869107 BJ	284	}
	285	}
	286
92f1f317	287	void
226b33ce	288	#if __STDC__
92f1f317	289	msg(const char *fmt, ...)
226b33ce	290	#else
92f1f317 KB	291	msg(fmt, va_alist)
	292	char *fmt;
	293	va_dcl
226b33ce	294	#endif
f3869107	295	{
92f1f317	296	va_list ap;
e6ee6826 CT	297
e6ee6826 CT	298	(void) fprintf(stderr," DUMP: ");
f3869107	299	#ifdef TDEBUG
e6ee6826	300	(void) fprintf(stderr, "pid=%d ", getpid());
f3869107	301	#endif
92f1f317 KB	302	#if __STDC__
	303	va_start(ap, fmt);
	304	#else
	305	va_start(ap);
	306	#endif
e6ee6826	307	(void) vfprintf(stderr, fmt, ap);
e6ee6826 CT	308	(void) fflush(stdout);
e6ee6826 CT	309	(void) fflush(stderr);
e6ee6826 CT	310	(void) vsprintf(lastmsg, fmt, ap);
	311	va_end(ap);
	312	}
	313
92f1f317 KB	314	void
	315	#if __STDC__
	316	msgtail(const char *fmt, ...)
	317	#else
	318	msgtail(fmt, va_alist)
	319	char *fmt;
	320	va_dcl
	321	#endif
e6ee6826	322	{
92f1f317 KB	323	va_list ap;
	324	#if __STDC__
	325	va_start(ap, fmt);
	326	#else
	327	va_start(ap);
	328	#endif
e6ee6826 CT	329	(void) vfprintf(stderr, fmt, ap);
e6ee6826 CT	330	va_end(ap);
f3869107 BJ	331	}
f3869107 BJ	332
92f1f317 KB	333	void
	334	#if __STDC__
	335	quit(const char *fmt, ...)
	336	#else
	337	quit(fmt, va_alist)
	338	char *fmt;
	339	va_dcl
	340	#endif
f3869107	341	{
92f1f317	342	va_list ap;
e6ee6826 CT	343
	344	(void) fprintf(stderr," DUMP: ");
	345	#ifdef TDEBUG
	346	(void) fprintf(stderr, "pid=%d ", getpid());
	347	#endif
92f1f317 KB	348	#if __STDC__
	349	va_start(ap, fmt);
	350	#else
	351	va_start(ap);
	352	#endif
e9345f05	353	(void) vfprintf(stderr, fmt, ap);
e6ee6826 CT	354	va_end(ap);
	355	(void) fflush(stdout);
	356	(void) fflush(stderr);
71b2d5ef	357	dumpabort(0);
f3869107	358	}
e6ee6826	359
f3869107 BJ	360	/*
	361	* Tell the operator what has to be done;
	362	* we don't actually do it
	363	*/
	364
2bfbb1f9 SL	365	struct fstab *
	366	allocfsent(fs)
	367	register struct fstab *fs;
	368	{
	369	register struct fstab *new;
2bfbb1f9 SL	370
2bfbb1f9 SL	371	new = (struct fstab )malloc(sizeof (fs));
e6ee6826 CT	372	if (new == NULL \|\|
	373	(new->fs_file = strdup(fs->fs_file)) == NULL \|\|
	374	(new->fs_type = strdup(fs->fs_type)) == NULL \|\|
	375	(new->fs_spec = strdup(fs->fs_spec)) == NULL)
	376	quit("%s\n", strerror(errno));
2bfbb1f9 SL	377	new->fs_passno = fs->fs_passno;
	378	new->fs_freq = fs->fs_freq;
	379	return (new);
	380	}
	381
	382	struct pfstab {
	383	struct pfstab *pf_next;
	384	struct fstab *pf_fstab;
	385	};
	386
e6ee6826	387	static struct pfstab *table;
2bfbb1f9	388
e6ee6826	389	void
f3869107 BJ	390	getfstab()
f3869107 BJ	391	{
2bfbb1f9 SL	392	register struct fstab *fs;
2bfbb1f9 SL	393	register struct pfstab *pf;
f3869107	394
9ba0a26f	395	if (setfsent() == 0) {
e6ee6826 CT	396	msg("Can't open %s for dump table information: %s\n",
e6ee6826 CT	397	_PATH_FSTAB, strerror(errno));
2bfbb1f9 SL	398	return;
2bfbb1f9 SL	399	}
3a399238	400	while ((fs = getfsent()) != NULL) {
2bfbb1f9 SL	401	if (strcmp(fs->fs_type, FSTAB_RW) &&
	402	strcmp(fs->fs_type, FSTAB_RO) &&
	403	strcmp(fs->fs_type, FSTAB_RQ))
	404	continue;
	405	fs = allocfsent(fs);
e6ee6826 CT	406	if ((pf = (struct pfstab )malloc(sizeof (pf))) == NULL)
e6ee6826 CT	407	quit("%s\n", strerror(errno));
2bfbb1f9 SL	408	pf->pf_fstab = fs;
	409	pf->pf_next = table;
	410	table = pf;
f3869107	411	}
e9345f05	412	(void) endfsent();
f3869107 BJ	413	}
	414
	415	/*
2bfbb1f9 SL	416	* Search in the fstab for a file name.
2bfbb1f9 SL	417	* This file name can be either the special or the path file name.
f3869107	418	*
2bfbb1f9 SL	419	* The entries in the fstab are the BLOCK special names, not the
	420	* character special names.
	421	* The caller of fstabsearch assures that the character device
	422	* is dumped (that is much faster)
f3869107	423	*
2bfbb1f9	424	* The file name can omit the leading '/'.
f3869107	425	*/
2bfbb1f9 SL	426	struct fstab *
	427	fstabsearch(key)
	428	char *key;
f3869107	429	{
2bfbb1f9 SL	430	register struct pfstab *pf;
2bfbb1f9 SL	431	register struct fstab *fs;
f3869107	432
e6ee6826	433	for (pf = table; pf != NULL; pf = pf->pf_next) {
2bfbb1f9	434	fs = pf->pf_fstab;
e6ee6826 CT	435	if (strcmp(fs->fs_file, key) == 0 \|\|
	436	strcmp(fs->fs_spec, key) == 0 \|\|
	437	strcmp(rawname(fs->fs_spec), key) == 0)
2bfbb1f9	438	return (fs);
e6ee6826	439	if (key[0] != '/') {
2bfbb1f9	440	if (*fs->fs_spec == '/' &&
f528180e	441	strcmp(fs->fs_spec + 1, key) == 0)
2bfbb1f9 SL	442	return (fs);
2bfbb1f9 SL	443	if (*fs->fs_file == '/' &&
f528180e	444	strcmp(fs->fs_file + 1, key) == 0)
2bfbb1f9	445	return (fs);
f3869107 BJ	446	}
f3869107 BJ	447	}
e6ee6826	448	return (NULL);
f3869107 BJ	449	}
	450
	451	/*
	452	* Tell the operator what to do
	453	*/
e6ee6826	454	void
77db894d	455	lastdump(arg)
e6ee6826	456	char arg; /* w ==> just what to do; W ==> most recent dumps */
f3869107	457	{
d70200c6 KM	458	register int i;
	459	register struct fstab *dt;
	460	register struct dumpdates *dtwalk;
	461	char lastname, date;
0289322c	462	int dumpme;
d70200c6	463	time_t tnow;
f3869107	464
e9345f05	465	(void) time(&tnow);
f3869107	466	getfstab(); /* /etc/fstab input */
d70200c6	467	initdumptimes(); /* /etc/dumpdates input */
e9345f05	468	qsort((char ) ddatev, nddates, sizeof(struct dumpdates ), datesort);
f3869107	469
77db894d	470	if (arg == 'w')
e6ee6826	471	(void) printf("Dump these file systems:\n");
77db894d	472	else
e6ee6826	473	(void) printf("Last dump(s) done (Dump '>' file systems):\n");
f3869107	474	lastname = "??";
d70200c6 KM	475	ITITERATE(i, dtwalk) {
	476	if (strncmp(lastname, dtwalk->dd_name,
	477	sizeof(dtwalk->dd_name)) == 0)
f3869107	478	continue;
d70200c6	479	date = (char *)ctime(&dtwalk->dd_ddate);
e6ee6826	480	date[16] = '\0'; /* blast away seconds and year */
d70200c6 KM	481	lastname = dtwalk->dd_name;
d70200c6 KM	482	dt = fstabsearch(dtwalk->dd_name);
e6ee6826 CT	483	dumpme = (dt != NULL &&
e6ee6826 CT	484	dt->fs_freq != 0 &&
88d3189f	485	dtwalk->dd_ddate < tnow - (dt->fs_freq * SECSPERDAY));
e6ee6826 CT	486	if (arg != 'w' \|\| dumpme)
	487	(void) printf(
	488	"%c %8s\t(%6s) Last dump: Level %c, Date %s\n",
	489	dumpme && (arg != 'w') ? '>' : ' ',
d70200c6	490	dtwalk->dd_name,
e6ee6826	491	dt ? dt->fs_file : "",
d70200c6	492	dtwalk->dd_level,
e6ee6826	493	date);
f3869107 BJ	494	}
	495	}
	496
d70200c6 KM	497	int
d70200c6 KM	498	datesort(a1, a2)
0289322c	499	const void a1, a2;
f3869107	500	{
d70200c6 KM	501	struct dumpdates d1 = (struct dumpdates **)a1;
d70200c6 KM	502	struct dumpdates d2 = (struct dumpdates **)a2;
e6ee6826	503	int diff;
f3869107	504
d70200c6	505	diff = strncmp(d1->dd_name, d2->dd_name, sizeof(d1->dd_name));
f3869107	506	if (diff == 0)
d70200c6 KM	507	return (d2->dd_ddate - d1->dd_ddate);
d70200c6 KM	508	return (diff);
f3869107	509	}