[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	5.13 (Berkeley) %G%";
#endif /* not lint */

#ifdef sunos
#include <stdio.h>
#include <ctype.h>
#include <sys/param.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <sys/time.h>
#else
#include <sys/param.h>
#include <sys/wait.h>
#include <stdio.h>
#endif
#include <signal.h>
#include <time.h>
#include <fstab.h>
#include <grp.h>
#include <utmp.h>
#include <tzfile.h>
#include <errno.h>
#ifdef __STDC__
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#else
#include <varargs.h>
#endif
#include "dump.h"
#include "pathnames.h"

static void alarmcatch();
static void sendmes();

/*
 *	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.
 */
int	timeout;
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, sigalrm) == 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
 */
static 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()
{
	msg("Interrupt received.\n");
	if (query("Do you want to abort dump?"))
		dumpabort();
}

/*
 *	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 *localtime();
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();
}

/*
 *	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()) {
		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;
	char *rawname();

	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, datesort();
	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)
	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
e9345f05	9	static char sccsid[] = "@(#)optr.c 5.13 (Berkeley) %G%";
e6ee6826	10	#endif /* not lint */
661913e7	11
cdce5e6c KM	12	#ifdef sunos
	13	#include <stdio.h>
	14	#include <ctype.h>
	15	#include <sys/param.h>
	16	#include <sys/wait.h>
	17	#include <sys/stat.h>
	18	#include <sys/time.h>
cdce5e6c	19	#else
13298603	20	#include <sys/param.h>
e6ee6826	21	#include <sys/wait.h>
cdce5e6c KM	22	#include <stdio.h>
cdce5e6c KM	23	#endif
13298603 KB	24	#include <signal.h>
	25	#include <time.h>
	26	#include <fstab.h>
e6ee6826	27	#include <grp.h>
13298603	28	#include <utmp.h>
88d3189f	29	#include <tzfile.h>
13298603	30	#include <errno.h>
13298603 KB	31	#ifdef __STDC__
	32	#include <unistd.h>
	33	#include <stdlib.h>
	34	#include <string.h>
226b33ce CT	35	#include <stdarg.h>
	36	#else
	37	#include <varargs.h>
13298603 KB	38	#endif
13298603 KB	39	#include "dump.h"
d6c8f812	40	#include "pathnames.h"
f3869107	41
e6ee6826 CT	42	static void alarmcatch();
	43	static void sendmes();
	44
f3869107	45	/*
d6c8f812 KM	46	* Query the operator; This previously-fascist piece of code
d6c8f812 KM	47	* no longer requires an exact response.
f3869107 BJ	48	* It is intended to protect dump aborting by inquisitive
	49	* people banging on the console terminal to see what is
	50	* happening which might cause dump to croak, destroying
	51	* a large number of hours of work.
	52	*
	53	* Every 2 minutes we reprint the message, alerting others
	54	* that dump needs attention.
	55	*/
	56	int timeout;
e10aef87	57	char attnmessage; / attention message */
e6ee6826 CT	58
e6ee6826 CT	59	int
f3869107 BJ	60	query(question)
	61	char *question;
	62	{
	63	char replybuffer[64];
e6ee6826	64	int back, errcount;
f3869107 BJ	65	FILE *mytty;
f3869107 BJ	66
e6ee6826 CT	67	if ((mytty = fopen(_PATH_TTY, "r")) == NULL)
e6ee6826 CT	68	quit("fopen on %s fails: %s\n", _PATH_TTY, strerror(errno));
f3869107 BJ	69	attnmessage = question;
	70	timeout = 0;
	71	alarmcatch();
e6ee6826 CT	72	back = -1;
	73	errcount = 0;
	74	do {
	75	if (fgets(replybuffer, 63, mytty) == NULL) {
	76	clearerr(mytty);
	77	if (++errcount > 30) /* XXX ugly */
	78	quit("excessive operator query failures\n");
d6c8f812	79	} else if (replybuffer[0] == 'y' \|\| replybuffer[0] == 'Y') {
e6ee6826	80	back = 1;
d6c8f812	81	} else if (replybuffer[0] == 'n' \|\| replybuffer[0] == 'N') {
e6ee6826	82	back = 0;
f3869107	83	} else {
e6ee6826 CT	84	(void) fprintf(stderr,
	85	" DUMP: \"Yes\" or \"No\"?\n");
	86	(void) fprintf(stderr,
	87	" DUMP: %s: (\"yes\" or \"no\") ", question);
f3869107	88	}
e6ee6826 CT	89	} while (back < 0);
e6ee6826 CT	90
f3869107 BJ	91	/*
	92	* Turn off the alarm, and reset the signal to trap out..
	93	*/
e9345f05	94	(void) alarm(0);
f3869107 BJ	95	if (signal(SIGALRM, sigalrm) == SIG_IGN)
f3869107 BJ	96	signal(SIGALRM, SIG_IGN);
e9345f05	97	(void) fclose(mytty);
f3869107 BJ	98	return(back);
f3869107 BJ	99	}
d6c8f812 KM	100
	101	char lastmsg[100];
	102
f3869107 BJ	103	/*
	104	* Alert the console operator, and enable the alarm clock to
	105	* sleep for 2 minutes in case nobody comes to satisfy dump
	106	*/
e6ee6826	107	static void
f3869107 BJ	108	alarmcatch()
f3869107 BJ	109	{
d6c8f812 KM	110	if (notify == 0) {
d6c8f812 KM	111	if (timeout == 0)
e6ee6826 CT	112	(void) fprintf(stderr,
e6ee6826 CT	113	" DUMP: %s: (\"yes\" or \"no\") ",
d6c8f812 KM	114	attnmessage);
	115	else
	116	msgtail("\7\7");
	117	} else {
	118	if (timeout) {
	119	msgtail("\n");
	120	broadcast(""); /* just print last msg */
	121	}
e6ee6826	122	(void) fprintf(stderr," DUMP: %s: (\"yes\" or \"no\") ",
d6c8f812 KM	123	attnmessage);
d6c8f812 KM	124	}
f3869107	125	signal(SIGALRM, alarmcatch);
e9345f05	126	(void) alarm(120);
f3869107 BJ	127	timeout = 1;
f3869107 BJ	128	}
e6ee6826	129
f3869107 BJ	130	/*
	131	* Here if an inquisitive operator interrupts the dump program
	132	*/
e6ee6826	133	void
f3869107 BJ	134	interrupt()
f3869107 BJ	135	{
e10aef87 KM	136	msg("Interrupt received.\n");
e10aef87 KM	137	if (query("Do you want to abort dump?"))
f3869107	138	dumpabort();
f3869107 BJ	139	}
	140
	141	/*
	142	* The following variables and routines manage alerting
	143	* operators to the status of dump.
	144	* This works much like wall(1) does.
	145	*/
e6ee6826	146	struct group *gp;
f3869107 BJ	147
	148	/*
	149	* Get the names from the group entry "operator" to notify.
	150	*/
e6ee6826	151	void
f3869107 BJ	152	set_operators()
	153	{
	154	if (!notify) /not going to notify/
	155	return;
	156	gp = getgrnam(OPGRENT);
e9345f05	157	(void) endgrent();
e6ee6826 CT	158	if (gp == NULL) {
e6ee6826 CT	159	msg("No group entry for %s.\n", OPGRENT);
f3869107 BJ	160	notify = 0;
	161	return;
	162	}
	163	}
	164
	165	struct tm *localtime();
	166	struct tm *localclock;
	167
	168	/*
	169	* We fork a child to do the actual broadcasting, so
	170	* that the process control groups are not messed up
	171	*/
e6ee6826	172	void
f3869107 BJ	173	broadcast(message)
	174	char *message;
	175	{
	176	time_t clock;
	177	FILE *f_utmp;
	178	struct utmp utmp;
f3869107 BJ	179	char **np;
	180	int pid, s;
	181
e6ee6826 CT	182	if (!notify \|\| gp == NULL)
	183	return;
	184
f3869107 BJ	185	switch (pid = fork()) {
	186	case -1:
	187	return;
	188	case 0:
	189	break;
	190	default:
	191	while (wait(&s) != pid)
	192	continue;
	193	return;
	194	}
	195
e9345f05	196	clock = time((time_t *)0);
f3869107 BJ	197	localclock = localtime(&clock);
f3869107 BJ	198
e6ee6826 CT	199	if ((f_utmp = fopen(_PATH_UTMP, "r")) == NULL) {
e6ee6826 CT	200	msg("Cannot open %s: %s\n", _PATH_UTMP, strerror(errno));
f3869107 BJ	201	return;
	202	}
	203
e6ee6826	204	while (!feof(f_utmp)) {
e9345f05	205	if (fread((char *) &utmp, sizeof (struct utmp), 1, f_utmp) != 1)
f3869107 BJ	206	break;
	207	if (utmp.ut_name[0] == 0)
	208	continue;
e6ee6826	209	for (np = gp->gr_mem; *np; np++) {
f3869107 BJ	210	if (strncmp(*np, utmp.ut_name, sizeof(utmp.ut_name)) != 0)
	211	continue;
	212	/*
	213	* Do not send messages to operators on dialups
	214	*/
	215	if (strncmp(utmp.ut_line, DIALUP, strlen(DIALUP)) == 0)
	216	continue;
	217	#ifdef DEBUG
e6ee6826 CT	218	msg("Message to %s at %s\n", *np, utmp.ut_line);
e6ee6826 CT	219	#endif
f3869107 BJ	220	sendmes(utmp.ut_line, message);
	221	}
	222	}
e6ee6826	223	(void) fclose(f_utmp);
f3869107 BJ	224	Exit(0); /* the wait in this same routine will catch this */
	225	/* NOTREACHED */
	226	}
	227
e6ee6826	228	static void
f3869107	229	sendmes(tty, message)
661913e7	230	char tty, message;
f3869107 BJ	231	{
	232	char t[50], buf[BUFSIZ];
	233	register char *cp;
d6c8f812	234	int lmsg = 1;
f3869107 BJ	235	FILE *f_tty;
f3869107 BJ	236
e6ee6826 CT	237	(void) strcpy(t, _PATH_DEV);
e6ee6826 CT	238	(void) strcat(t, tty);
f3869107	239
e6ee6826	240	if ((f_tty = fopen(t, "w")) != NULL) {
f3869107	241	setbuf(f_tty, buf);
e6ee6826 CT	242	(void) fprintf(f_tty,
	243	"\n\
	244	\7\7\7Message from the dump program to all operators at %d:%02d ...\r\n\n\
	245	DUMP: NEEDS ATTENTION: ",
	246	localclock->tm_hour, localclock->tm_min);
d6c8f812 KM	247	for (cp = lastmsg; ; cp++) {
	248	if (*cp == '\0') {
	249	if (lmsg) {
	250	cp = message;
	251	if (*cp == '\0')
	252	break;
	253	lmsg = 0;
	254	} else
	255	break;
	256	}
	257	if (*cp == '\n')
e6ee6826 CT	258	(void) putc('\r', f_tty);
e6ee6826 CT	259	(void) putc(*cp, f_tty);
f3869107	260	}
e6ee6826	261	(void) fclose(f_tty);
f3869107 BJ	262	}
	263	}
	264
	265	/*
	266	* print out an estimate of the amount of time left to do the dump
	267	*/
	268
	269	time_t tschedule = 0;
	270
e6ee6826	271	void
f3869107 BJ	272	timeest()
	273	{
	274	time_t tnow, deltat;
	275
e9345f05	276	(void) time((time_t *) &tnow);
e6ee6826	277	if (tnow >= tschedule) {
f3869107 BJ	278	tschedule = tnow + 300;
	279	if (blockswritten < 500)
	280	return;
	281	deltat = tstart_writing - tnow +
d70200c6 KM	282	(1.0 * (tnow - tstart_writing))
d70200c6 KM	283	/ blockswritten * tapesize;
f3869107	284	msg("%3.2f%% done, finished in %d:%02d\n",
d70200c6 KM	285	(blockswritten * 100.0) / tapesize,
d70200c6 KM	286	deltat / 3600, (deltat % 3600) / 60);
f3869107 BJ	287	}
	288	}
	289
92f1f317	290	void
226b33ce	291	#if __STDC__
92f1f317	292	msg(const char *fmt, ...)
226b33ce	293	#else
92f1f317 KB	294	msg(fmt, va_alist)
	295	char *fmt;
	296	va_dcl
226b33ce	297	#endif
f3869107	298	{
92f1f317	299	va_list ap;
e6ee6826 CT	300
e6ee6826 CT	301	(void) fprintf(stderr," DUMP: ");
f3869107	302	#ifdef TDEBUG
e6ee6826	303	(void) fprintf(stderr, "pid=%d ", getpid());
f3869107	304	#endif
92f1f317 KB	305	#if __STDC__
	306	va_start(ap, fmt);
	307	#else
	308	va_start(ap);
	309	#endif
e6ee6826	310	(void) vfprintf(stderr, fmt, ap);
e6ee6826 CT	311	(void) fflush(stdout);
e6ee6826 CT	312	(void) fflush(stderr);
e6ee6826 CT	313	(void) vsprintf(lastmsg, fmt, ap);
	314	va_end(ap);
	315	}
	316
92f1f317 KB	317	void
	318	#if __STDC__
	319	msgtail(const char *fmt, ...)
	320	#else
	321	msgtail(fmt, va_alist)
	322	char *fmt;
	323	va_dcl
	324	#endif
e6ee6826	325	{
92f1f317 KB	326	va_list ap;
	327	#if __STDC__
	328	va_start(ap, fmt);
	329	#else
	330	va_start(ap);
	331	#endif
e6ee6826 CT	332	(void) vfprintf(stderr, fmt, ap);
e6ee6826 CT	333	va_end(ap);
f3869107 BJ	334	}
f3869107 BJ	335
92f1f317 KB	336	void
	337	#if __STDC__
	338	quit(const char *fmt, ...)
	339	#else
	340	quit(fmt, va_alist)
	341	char *fmt;
	342	va_dcl
	343	#endif
f3869107	344	{
92f1f317	345	va_list ap;
e6ee6826 CT	346
	347	(void) fprintf(stderr," DUMP: ");
	348	#ifdef TDEBUG
	349	(void) fprintf(stderr, "pid=%d ", getpid());
	350	#endif
92f1f317 KB	351	#if __STDC__
	352	va_start(ap, fmt);
	353	#else
	354	va_start(ap);
	355	#endif
e9345f05	356	(void) vfprintf(stderr, fmt, ap);
e6ee6826 CT	357	va_end(ap);
	358	(void) fflush(stdout);
	359	(void) fflush(stderr);
	360	dumpabort();
f3869107	361	}
e6ee6826	362
f3869107 BJ	363	/*
	364	* Tell the operator what has to be done;
	365	* we don't actually do it
	366	*/
	367
2bfbb1f9 SL	368	struct fstab *
	369	allocfsent(fs)
	370	register struct fstab *fs;
	371	{
	372	register struct fstab *new;
2bfbb1f9 SL	373
2bfbb1f9 SL	374	new = (struct fstab )malloc(sizeof (fs));
e6ee6826 CT	375	if (new == NULL \|\|
	376	(new->fs_file = strdup(fs->fs_file)) == NULL \|\|
	377	(new->fs_type = strdup(fs->fs_type)) == NULL \|\|
	378	(new->fs_spec = strdup(fs->fs_spec)) == NULL)
	379	quit("%s\n", strerror(errno));
2bfbb1f9 SL	380	new->fs_passno = fs->fs_passno;
	381	new->fs_freq = fs->fs_freq;
	382	return (new);
	383	}
	384
	385	struct pfstab {
	386	struct pfstab *pf_next;
	387	struct fstab *pf_fstab;
	388	};
	389
e6ee6826	390	static struct pfstab *table;
2bfbb1f9	391
e6ee6826	392	void
f3869107 BJ	393	getfstab()
f3869107 BJ	394	{
2bfbb1f9 SL	395	register struct fstab *fs;
2bfbb1f9 SL	396	register struct pfstab *pf;
f3869107	397
9ba0a26f	398	if (setfsent() == 0) {
e6ee6826 CT	399	msg("Can't open %s for dump table information: %s\n",
e6ee6826 CT	400	_PATH_FSTAB, strerror(errno));
2bfbb1f9 SL	401	return;
	402	}
	403	while (fs = getfsent()) {
	404	if (strcmp(fs->fs_type, FSTAB_RW) &&
	405	strcmp(fs->fs_type, FSTAB_RO) &&
	406	strcmp(fs->fs_type, FSTAB_RQ))
	407	continue;
	408	fs = allocfsent(fs);
e6ee6826 CT	409	if ((pf = (struct pfstab )malloc(sizeof (pf))) == NULL)
e6ee6826 CT	410	quit("%s\n", strerror(errno));
2bfbb1f9 SL	411	pf->pf_fstab = fs;
	412	pf->pf_next = table;
	413	table = pf;
f3869107	414	}
e9345f05	415	(void) endfsent();
f3869107 BJ	416	}
	417
	418	/*
2bfbb1f9 SL	419	* Search in the fstab for a file name.
2bfbb1f9 SL	420	* This file name can be either the special or the path file name.
f3869107	421	*
2bfbb1f9 SL	422	* The entries in the fstab are the BLOCK special names, not the
	423	* character special names.
	424	* The caller of fstabsearch assures that the character device
	425	* is dumped (that is much faster)
f3869107	426	*
2bfbb1f9	427	* The file name can omit the leading '/'.
f3869107	428	*/
2bfbb1f9 SL	429	struct fstab *
	430	fstabsearch(key)
	431	char *key;
f3869107	432	{
2bfbb1f9 SL	433	register struct pfstab *pf;
2bfbb1f9 SL	434	register struct fstab *fs;
2bfbb1f9	435	char *rawname();
f3869107	436
e6ee6826	437	for (pf = table; pf != NULL; pf = pf->pf_next) {
2bfbb1f9	438	fs = pf->pf_fstab;
e6ee6826 CT	439	if (strcmp(fs->fs_file, key) == 0 \|\|
	440	strcmp(fs->fs_spec, key) == 0 \|\|
	441	strcmp(rawname(fs->fs_spec), key) == 0)
2bfbb1f9	442	return (fs);
e6ee6826	443	if (key[0] != '/') {
2bfbb1f9	444	if (*fs->fs_spec == '/' &&
f528180e	445	strcmp(fs->fs_spec + 1, key) == 0)
2bfbb1f9 SL	446	return (fs);
2bfbb1f9 SL	447	if (*fs->fs_file == '/' &&
f528180e	448	strcmp(fs->fs_file + 1, key) == 0)
2bfbb1f9	449	return (fs);
f3869107 BJ	450	}
f3869107 BJ	451	}
e6ee6826	452	return (NULL);
f3869107 BJ	453	}
	454
	455	/*
	456	* Tell the operator what to do
	457	*/
e6ee6826	458	void
77db894d	459	lastdump(arg)
e6ee6826	460	char arg; /* w ==> just what to do; W ==> most recent dumps */
f3869107	461	{
d70200c6 KM	462	register int i;
	463	register struct fstab *dt;
	464	register struct dumpdates *dtwalk;
	465	char lastname, date;
	466	int dumpme, datesort();
	467	time_t tnow;
f3869107	468
e9345f05	469	(void) time(&tnow);
f3869107	470	getfstab(); /* /etc/fstab input */
d70200c6	471	initdumptimes(); /* /etc/dumpdates input */
e9345f05	472	qsort((char ) ddatev, nddates, sizeof(struct dumpdates ), datesort);
f3869107	473
77db894d	474	if (arg == 'w')
e6ee6826	475	(void) printf("Dump these file systems:\n");
77db894d	476	else
e6ee6826	477	(void) printf("Last dump(s) done (Dump '>' file systems):\n");
f3869107	478	lastname = "??";
d70200c6 KM	479	ITITERATE(i, dtwalk) {
	480	if (strncmp(lastname, dtwalk->dd_name,
	481	sizeof(dtwalk->dd_name)) == 0)
f3869107	482	continue;
d70200c6	483	date = (char *)ctime(&dtwalk->dd_ddate);
e6ee6826	484	date[16] = '\0'; /* blast away seconds and year */
d70200c6 KM	485	lastname = dtwalk->dd_name;
d70200c6 KM	486	dt = fstabsearch(dtwalk->dd_name);
e6ee6826 CT	487	dumpme = (dt != NULL &&
e6ee6826 CT	488	dt->fs_freq != 0 &&
88d3189f	489	dtwalk->dd_ddate < tnow - (dt->fs_freq * SECSPERDAY));
e6ee6826 CT	490	if (arg != 'w' \|\| dumpme)
	491	(void) printf(
	492	"%c %8s\t(%6s) Last dump: Level %c, Date %s\n",
	493	dumpme && (arg != 'w') ? '>' : ' ',
d70200c6	494	dtwalk->dd_name,
e6ee6826	495	dt ? dt->fs_file : "",
d70200c6	496	dtwalk->dd_level,
e6ee6826	497	date);
f3869107 BJ	498	}
	499	}
	500
d70200c6 KM	501	int
d70200c6 KM	502	datesort(a1, a2)
e6ee6826	503	void a1, a2;
f3869107	504	{
d70200c6 KM	505	struct dumpdates d1 = (struct dumpdates **)a1;
d70200c6 KM	506	struct dumpdates d2 = (struct dumpdates **)a2;
e6ee6826	507	int diff;
f3869107	508
d70200c6	509	diff = strncmp(d1->dd_name, d2->dd_name, sizeof(d1->dd_name));
f3869107	510	if (diff == 0)
d70200c6 KM	511	return (d2->dd_ddate - d1->dd_ddate);
d70200c6 KM	512	return (diff);
f3869107 BJ	513	}
f3869107 BJ	514