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optr.c revision 1.42.26.1
      1  1.42.26.1  christos /*	$NetBSD: optr.c,v 1.42.26.1 2019/06/10 22:05:32 christos Exp $	*/
      2        1.3       cgd 
      3        1.1       cgd /*-
      4        1.2   mycroft  * Copyright (c) 1980, 1988, 1993
      5        1.2   mycroft  *	The Regents of the University of California.  All rights reserved.
      6        1.1       cgd  *
      7        1.1       cgd  * Redistribution and use in source and binary forms, with or without
      8        1.1       cgd  * modification, are permitted provided that the following conditions
      9        1.1       cgd  * are met:
     10        1.1       cgd  * 1. Redistributions of source code must retain the above copyright
     11        1.1       cgd  *    notice, this list of conditions and the following disclaimer.
     12        1.1       cgd  * 2. Redistributions in binary form must reproduce the above copyright
     13        1.1       cgd  *    notice, this list of conditions and the following disclaimer in the
     14        1.1       cgd  *    documentation and/or other materials provided with the distribution.
     15       1.31       agc  * 3. Neither the name of the University nor the names of its contributors
     16        1.1       cgd  *    may be used to endorse or promote products derived from this software
     17        1.1       cgd  *    without specific prior written permission.
     18        1.1       cgd  *
     19        1.1       cgd  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20        1.1       cgd  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21        1.1       cgd  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22        1.1       cgd  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23        1.1       cgd  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24        1.1       cgd  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25        1.1       cgd  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26        1.1       cgd  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27        1.1       cgd  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28        1.1       cgd  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29        1.1       cgd  * SUCH DAMAGE.
     30        1.1       cgd  */
     31        1.1       cgd 
     32       1.12     lukem #include <sys/cdefs.h>
     33        1.1       cgd #ifndef lint
     34        1.3       cgd #if 0
     35        1.3       cgd static char sccsid[] = "@(#)optr.c	8.2 (Berkeley) 1/6/94";
     36        1.3       cgd #else
     37  1.42.26.1  christos __RCSID("$NetBSD: optr.c,v 1.42.26.1 2019/06/10 22:05:32 christos Exp $");
     38        1.3       cgd #endif
     39        1.1       cgd #endif /* not lint */
     40        1.1       cgd 
     41        1.1       cgd #include <sys/param.h>
     42       1.25     lukem #include <sys/queue.h>
     43        1.1       cgd #include <sys/wait.h>
     44        1.1       cgd #include <sys/time.h>
     45       1.17     lukem #include <sys/ucred.h>
     46       1.17     lukem #include <sys/mount.h>
     47        1.2   mycroft 
     48        1.2   mycroft #include <errno.h>
     49        1.1       cgd #include <fstab.h>
     50        1.1       cgd #include <grp.h>
     51        1.2   mycroft #include <signal.h>
     52        1.2   mycroft #include <stdio.h>
     53        1.1       cgd #include <stdlib.h>
     54        1.1       cgd #include <string.h>
     55        1.1       cgd #include <stdarg.h>
     56       1.13    kleink #include <time.h>
     57        1.2   mycroft #include <tzfile.h>
     58        1.2   mycroft #include <unistd.h>
     59       1.37  christos #include <util.h>
     60       1.30      fvdl 
     61        1.1       cgd #include "dump.h"
     62        1.1       cgd #include "pathnames.h"
     63        1.1       cgd 
     64       1.19     blymn extern  char *time_string;
     65       1.19     blymn extern  char default_time_string[];
     66       1.19     blymn 
     67       1.40  dholland static void alarmcatch(int);
     68       1.40  dholland static struct fstab *allocfsent(const struct fstab *);
     69       1.40  dholland static int datesort(const void *, const void *);
     70       1.34  christos static void do_timestamp(time_t, const char *);
     71        1.1       cgd 
     72        1.1       cgd /*
     73        1.1       cgd  *	Query the operator; This previously-fascist piece of code
     74        1.1       cgd  *	no longer requires an exact response.
     75        1.1       cgd  *	It is intended to protect dump aborting by inquisitive
     76        1.1       cgd  *	people banging on the console terminal to see what is
     77        1.1       cgd  *	happening which might cause dump to croak, destroying
     78        1.1       cgd  *	a large number of hours of work.
     79        1.1       cgd  *
     80        1.1       cgd  *	Every 2 minutes we reprint the message, alerting others
     81        1.1       cgd  *	that dump needs attention.
     82        1.1       cgd  */
     83        1.2   mycroft static	int timeout;
     84       1.34  christos static	const char *attnmessage;		/* attention message */
     85        1.1       cgd 
     86        1.1       cgd int
     87       1.34  christos query(const char *question)
     88        1.1       cgd {
     89        1.1       cgd 	char	replybuffer[64];
     90        1.1       cgd 	int	back, errcount;
     91        1.1       cgd 	FILE	*mytty;
     92        1.4       jtk 	time_t	firstprompt, when_answered;
     93        1.4       jtk 
     94        1.4       jtk 	firstprompt = time((time_t *)0);
     95        1.1       cgd 
     96        1.1       cgd 	if ((mytty = fopen(_PATH_TTY, "r")) == NULL)
     97  1.42.26.1  christos 		quite(errno, "fopen on %s fails", _PATH_TTY);
     98        1.1       cgd 	attnmessage = question;
     99        1.1       cgd 	timeout = 0;
    100       1.12     lukem 	alarmcatch(0);
    101        1.1       cgd 	back = -1;
    102        1.1       cgd 	errcount = 0;
    103        1.1       cgd 	do {
    104        1.1       cgd 		if (fgets(replybuffer, 63, mytty) == NULL) {
    105        1.1       cgd 			clearerr(mytty);
    106        1.1       cgd 			if (++errcount > 30)	/* XXX	ugly */
    107  1.42.26.1  christos 				quit("excessive operator query failures");
    108        1.1       cgd 		} else if (replybuffer[0] == 'y' || replybuffer[0] == 'Y') {
    109        1.1       cgd 			back = 1;
    110        1.1       cgd 		} else if (replybuffer[0] == 'n' || replybuffer[0] == 'N') {
    111        1.1       cgd 			back = 0;
    112        1.1       cgd 		} else {
    113        1.1       cgd 			(void) fprintf(stderr,
    114        1.1       cgd 			    "  DUMP: \"Yes\" or \"No\"?\n");
    115        1.1       cgd 			(void) fprintf(stderr,
    116        1.1       cgd 			    "  DUMP: %s: (\"yes\" or \"no\") ", question);
    117        1.1       cgd 		}
    118        1.1       cgd 	} while (back < 0);
    119        1.1       cgd 
    120        1.1       cgd 	/*
    121        1.1       cgd 	 *	Turn off the alarm, and reset the signal to trap out..
    122        1.1       cgd 	 */
    123        1.1       cgd 	(void) alarm(0);
    124        1.1       cgd 	if (signal(SIGALRM, sig) == SIG_IGN)
    125        1.1       cgd 		signal(SIGALRM, SIG_IGN);
    126        1.1       cgd 	(void) fclose(mytty);
    127        1.4       jtk 	when_answered = time((time_t *)0);
    128        1.4       jtk 	/*
    129        1.4       jtk 	 * Adjust the base for time estimates to ignore time we spent waiting
    130        1.4       jtk 	 * for operator input.
    131        1.4       jtk 	 */
    132        1.4       jtk 	if (tstart_writing != 0)
    133       1.32     lukem 		tstart_writing += (when_answered - firstprompt);
    134       1.32     lukem 	if (tstart_volume != 0)
    135       1.32     lukem 		tstart_volume += (when_answered - firstprompt);
    136        1.1       cgd 	return(back);
    137        1.1       cgd }
    138        1.1       cgd 
    139       1.20     lukem char lastmsg[200];
    140        1.1       cgd 
    141        1.1       cgd /*
    142        1.1       cgd  *	Alert the console operator, and enable the alarm clock to
    143        1.1       cgd  *	sleep for 2 minutes in case nobody comes to satisfy dump
    144        1.1       cgd  */
    145       1.40  dholland static void
    146       1.36  christos alarmcatch(int dummy __unused)
    147        1.1       cgd {
    148       1.15     lukem 
    149        1.1       cgd 	if (notify == 0) {
    150        1.1       cgd 		if (timeout == 0)
    151        1.1       cgd 			(void) fprintf(stderr,
    152        1.1       cgd 			    "  DUMP: %s: (\"yes\" or \"no\") ",
    153        1.1       cgd 			    attnmessage);
    154        1.1       cgd 		else
    155       1.25     lukem 			msgtail("\a\a");
    156        1.1       cgd 	} else {
    157        1.1       cgd 		if (timeout) {
    158        1.1       cgd 			msgtail("\n");
    159        1.1       cgd 			broadcast("");		/* just print last msg */
    160        1.1       cgd 		}
    161        1.1       cgd 		(void) fprintf(stderr,"  DUMP: %s: (\"yes\" or \"no\") ",
    162        1.1       cgd 		    attnmessage);
    163        1.1       cgd 	}
    164        1.1       cgd 	signal(SIGALRM, alarmcatch);
    165        1.1       cgd 	(void) alarm(120);
    166        1.1       cgd 	timeout = 1;
    167        1.1       cgd }
    168        1.1       cgd 
    169        1.1       cgd /*
    170        1.1       cgd  *	Here if an inquisitive operator interrupts the dump program
    171        1.1       cgd  */
    172        1.1       cgd void
    173       1.36  christos interrupt(int signo __unused)
    174        1.1       cgd {
    175       1.28      yamt 	int errno_save;
    176       1.15     lukem 
    177       1.28      yamt 	errno_save = errno;
    178        1.1       cgd 	msg("Interrupt received.\n");
    179        1.1       cgd 	if (query("Do you want to abort dump?"))
    180        1.1       cgd 		dumpabort(0);
    181       1.28      yamt 	errno = errno_save;
    182        1.1       cgd }
    183        1.1       cgd 
    184        1.1       cgd /*
    185       1.29     lukem  *	Use wall(1) "-g operator" to do the actual broadcasting.
    186        1.1       cgd  */
    187        1.1       cgd void
    188       1.34  christos broadcast(const char *message)
    189        1.1       cgd {
    190       1.29     lukem 	FILE	*fp;
    191       1.29     lukem 	char	buf[sizeof(_PATH_WALL) + sizeof(OPGRENT) + 3];
    192        1.1       cgd 
    193       1.29     lukem 	if (!notify)
    194        1.1       cgd 		return;
    195        1.1       cgd 
    196       1.29     lukem 	(void)snprintf(buf, sizeof(buf), "%s -g %s", _PATH_WALL, OPGRENT);
    197       1.29     lukem 	if ((fp = popen(buf, "w")) == NULL)
    198        1.1       cgd 		return;
    199        1.1       cgd 
    200       1.29     lukem 	(void) fputs("\a\a\aMessage from the dump program to all operators\n\nDUMP: NEEDS ATTENTION: ", fp);
    201       1.29     lukem 	if (lastmsg[0])
    202       1.29     lukem 		(void) fputs(lastmsg, fp);
    203       1.29     lukem 	if (message[0])
    204       1.29     lukem 		(void) fputs(message, fp);
    205        1.1       cgd 
    206       1.29     lukem 	(void) pclose(fp);
    207        1.1       cgd }
    208        1.1       cgd 
    209        1.1       cgd /*
    210       1.22     lukem  *	print out the timestamp string to stderr.
    211       1.19     blymn  */
    212       1.19     blymn #define STAMP_LENGTH 80
    213       1.19     blymn 
    214       1.19     blymn static void
    215       1.34  christos do_timestamp(time_t thistime, const char *message)
    216       1.19     blymn {
    217       1.19     blymn 	struct tm tm_time;
    218       1.19     blymn 	char then[STAMP_LENGTH + 1];
    219       1.23     lukem 
    220       1.21     lukem 	(void) localtime_r(&thistime, &tm_time);
    221       1.19     blymn 	if (strftime(then, STAMP_LENGTH, time_string, &tm_time) == 0) {
    222       1.19     blymn 		time_string = default_time_string;
    223       1.19     blymn 		strftime(then, STAMP_LENGTH, time_string, &tm_time);
    224       1.19     blymn 		fprintf(stderr,
    225       1.19     blymn 		   "DUMP: ERROR: TIMEFORMAT too long, reverting to default\n");
    226       1.19     blymn 	}
    227       1.23     lukem 
    228       1.21     lukem 	fprintf(stderr, message, then);
    229       1.19     blymn }
    230       1.19     blymn 
    231       1.23     lukem 
    232       1.19     blymn /*
    233        1.1       cgd  *	print out an estimate of the amount of time left to do the dump
    234        1.1       cgd  */
    235        1.1       cgd 
    236        1.1       cgd time_t	tschedule = 0;
    237        1.1       cgd 
    238        1.1       cgd void
    239       1.15     lukem timeest(void)
    240        1.1       cgd {
    241        1.1       cgd 	time_t	tnow, deltat;
    242        1.1       cgd 
    243        1.1       cgd 	(void) time((time_t *) &tnow);
    244        1.1       cgd 	if (tnow >= tschedule) {
    245        1.1       cgd 		tschedule = tnow + 300;
    246        1.1       cgd 		if (blockswritten < 500)
    247       1.23     lukem 			return;
    248        1.1       cgd 		deltat = tstart_writing - tnow +
    249        1.1       cgd 			(1.0 * (tnow - tstart_writing))
    250        1.1       cgd 			/ blockswritten * tapesize;
    251       1.19     blymn 
    252       1.19     blymn 		msg("%3.2f%% done, finished in %ld:%02ld",
    253       1.14        is 		    (blockswritten * 100.0) / tapesize,
    254       1.14        is 		    (long)(deltat / 3600), (long)((deltat % 3600) / 60));
    255       1.23     lukem 
    256       1.19     blymn 		if (timestamp == 1)
    257       1.19     blymn 			do_timestamp(tnow + deltat, " (at %s)");
    258       1.19     blymn 
    259       1.19     blymn 		fprintf(stderr, "\n");
    260        1.1       cgd 	}
    261        1.1       cgd }
    262        1.1       cgd 
    263        1.1       cgd void
    264        1.1       cgd msg(const char *fmt, ...)
    265        1.1       cgd {
    266       1.22     lukem 	time_t  tnow;
    267        1.1       cgd 	va_list ap;
    268        1.1       cgd 
    269       1.19     blymn 	fprintf(stderr, "  ");
    270       1.22     lukem 	if (timestamp == 1) {
    271       1.22     lukem 		(void) time((time_t *) &tnow);
    272       1.19     blymn 		do_timestamp(tnow, "[%s] ");
    273       1.22     lukem 	}
    274       1.19     blymn 
    275       1.19     blymn 	(void) fprintf(stderr,"DUMP: ");
    276        1.1       cgd #ifdef TDEBUG
    277        1.1       cgd 	(void) fprintf(stderr, "pid=%d ", getpid());
    278        1.1       cgd #endif
    279        1.1       cgd 	va_start(ap, fmt);
    280       1.20     lukem 	(void) vsnprintf(lastmsg, sizeof lastmsg, fmt, ap);
    281       1.20     lukem 	fputs(lastmsg, stderr);
    282        1.1       cgd 	(void) fflush(stdout);
    283        1.1       cgd 	(void) fflush(stderr);
    284        1.1       cgd 	va_end(ap);
    285        1.1       cgd }
    286        1.1       cgd 
    287        1.1       cgd void
    288        1.1       cgd msgtail(const char *fmt, ...)
    289        1.1       cgd {
    290        1.1       cgd 	va_list ap;
    291       1.15     lukem 
    292        1.1       cgd 	va_start(ap, fmt);
    293        1.1       cgd 	(void) vfprintf(stderr, fmt, ap);
    294        1.1       cgd 	va_end(ap);
    295        1.1       cgd }
    296        1.1       cgd 
    297        1.1       cgd void
    298  1.42.26.1  christos quite(int e, const char *fmt, ...)
    299  1.42.26.1  christos {
    300  1.42.26.1  christos 	va_list ap;
    301  1.42.26.1  christos 
    302  1.42.26.1  christos 	(void) fprintf(stderr,"  DUMP: ");
    303  1.42.26.1  christos #ifdef TDEBUG
    304  1.42.26.1  christos 	(void) fprintf(stderr, "pid=%d ", getpid());
    305  1.42.26.1  christos #endif
    306  1.42.26.1  christos 	va_start(ap, fmt);
    307  1.42.26.1  christos 	(void) vfprintf(stderr, fmt, ap);
    308  1.42.26.1  christos 	va_end(ap);
    309  1.42.26.1  christos 	(void) fprintf(stderr, ": %s\n", strerror(e));
    310  1.42.26.1  christos 	(void) fflush(stdout);
    311  1.42.26.1  christos 	(void) fflush(stderr);
    312  1.42.26.1  christos 	dumpabort(0);
    313  1.42.26.1  christos }
    314  1.42.26.1  christos 
    315  1.42.26.1  christos void
    316        1.1       cgd quit(const char *fmt, ...)
    317        1.1       cgd {
    318        1.1       cgd 	va_list ap;
    319        1.1       cgd 
    320        1.1       cgd 	(void) fprintf(stderr,"  DUMP: ");
    321        1.1       cgd #ifdef TDEBUG
    322        1.1       cgd 	(void) fprintf(stderr, "pid=%d ", getpid());
    323        1.1       cgd #endif
    324        1.1       cgd 	va_start(ap, fmt);
    325        1.1       cgd 	(void) vfprintf(stderr, fmt, ap);
    326        1.1       cgd 	va_end(ap);
    327  1.42.26.1  christos 	(void) fprintf(stderr, "\n");
    328        1.1       cgd 	(void) fflush(stdout);
    329        1.1       cgd 	(void) fflush(stderr);
    330        1.1       cgd 	dumpabort(0);
    331        1.1       cgd }
    332        1.1       cgd 
    333        1.1       cgd /*
    334        1.1       cgd  *	Tell the operator what has to be done;
    335        1.1       cgd  *	we don't actually do it
    336        1.1       cgd  */
    337        1.1       cgd 
    338       1.40  dholland static struct fstab *
    339       1.39  dholland allocfsent(const struct fstab *fs)
    340        1.1       cgd {
    341        1.7     lukem 	struct fstab *new;
    342        1.1       cgd 
    343       1.37  christos 	new = xmalloc(sizeof (*fs));
    344       1.17     lukem 	new->fs_file = xstrdup(fs->fs_file);
    345       1.17     lukem 	new->fs_type = xstrdup(fs->fs_type);
    346  1.42.26.1  christos 	new->fs_spec = xmalloc(FILENAME_MAX);
    347  1.42.26.1  christos 	if (getfsspecname(new->fs_spec, FILENAME_MAX, fs->fs_spec) == NULL)
    348  1.42.26.1  christos 		quite(errno, "can't resolve mount point %s (%s)",
    349  1.42.26.1  christos 		    fs->fs_spec, new->fs_spec);
    350        1.1       cgd 	new->fs_passno = fs->fs_passno;
    351        1.1       cgd 	new->fs_freq = fs->fs_freq;
    352  1.42.26.1  christos 	return new;
    353        1.1       cgd }
    354        1.1       cgd 
    355        1.1       cgd struct	pfstab {
    356       1.25     lukem 	SLIST_ENTRY(pfstab) pf_list;
    357        1.1       cgd 	struct	fstab *pf_fstab;
    358        1.1       cgd };
    359        1.1       cgd 
    360       1.25     lukem static	SLIST_HEAD(, pfstab) table;
    361        1.1       cgd 
    362        1.1       cgd void
    363       1.15     lukem getfstab(void)
    364        1.1       cgd {
    365        1.7     lukem 	struct fstab *fs;
    366        1.7     lukem 	struct pfstab *pf;
    367        1.1       cgd 
    368        1.1       cgd 	if (setfsent() == 0) {
    369        1.1       cgd 		msg("Can't open %s for dump table information: %s\n",
    370        1.1       cgd 		    _PATH_FSTAB, strerror(errno));
    371        1.1       cgd 		return;
    372        1.1       cgd 	}
    373        1.2   mycroft 	while ((fs = getfsent()) != NULL) {
    374        1.1       cgd 		if (strcmp(fs->fs_type, FSTAB_RW) &&
    375        1.1       cgd 		    strcmp(fs->fs_type, FSTAB_RO) &&
    376        1.1       cgd 		    strcmp(fs->fs_type, FSTAB_RQ))
    377        1.5     perry 			continue;
    378       1.24     lukem #ifdef DUMP_LFS
    379       1.24     lukem 		if (strcmp(fs->fs_vfstype, "lfs"))
    380       1.24     lukem 			continue;
    381       1.24     lukem #else
    382        1.5     perry 		if (strcmp(fs->fs_vfstype, "ufs") &&
    383        1.5     perry 		    strcmp(fs->fs_vfstype, "ffs"))
    384        1.1       cgd 			continue;
    385       1.24     lukem #endif
    386        1.1       cgd 		fs = allocfsent(fs);
    387       1.17     lukem 		pf = (struct pfstab *)xmalloc(sizeof (*pf));
    388        1.1       cgd 		pf->pf_fstab = fs;
    389       1.25     lukem 		SLIST_INSERT_HEAD(&table, pf, pf_list);
    390        1.1       cgd 	}
    391        1.1       cgd 	(void) endfsent();
    392        1.1       cgd }
    393        1.1       cgd 
    394        1.1       cgd /*
    395        1.1       cgd  * Search in the fstab for a file name.
    396        1.1       cgd  * This file name can be either the special or the path file name.
    397        1.1       cgd  *
    398        1.1       cgd  * The entries in the fstab are the BLOCK special names, not the
    399        1.1       cgd  * character special names.
    400        1.1       cgd  * The caller of fstabsearch assures that the character device
    401        1.1       cgd  * is dumped (that is much faster)
    402        1.1       cgd  *
    403        1.1       cgd  * The file name can omit the leading '/'.
    404        1.1       cgd  */
    405        1.1       cgd struct fstab *
    406       1.17     lukem fstabsearch(const char *key)
    407        1.1       cgd {
    408        1.7     lukem 	struct pfstab *pf;
    409        1.7     lukem 	struct fstab *fs;
    410       1.38  christos 	const char *rn;
    411       1.38  christos 	char buf[MAXPATHLEN];
    412        1.1       cgd 
    413       1.25     lukem 	SLIST_FOREACH(pf, &table, pf_list) {
    414        1.1       cgd 		fs = pf->pf_fstab;
    415        1.1       cgd 		if (strcmp(fs->fs_file, key) == 0 ||
    416        1.1       cgd 		    strcmp(fs->fs_spec, key) == 0)
    417        1.1       cgd 			return (fs);
    418       1.38  christos 		rn = getdiskrawname(buf, sizeof(buf), fs->fs_spec);
    419        1.1       cgd 		if (rn != NULL && strcmp(rn, key) == 0)
    420        1.1       cgd 			return (fs);
    421        1.1       cgd 		if (key[0] != '/') {
    422        1.1       cgd 			if (*fs->fs_spec == '/' &&
    423        1.1       cgd 			    strcmp(fs->fs_spec + 1, key) == 0)
    424        1.1       cgd 				return (fs);
    425        1.1       cgd 			if (*fs->fs_file == '/' &&
    426        1.1       cgd 			    strcmp(fs->fs_file + 1, key) == 0)
    427        1.1       cgd 				return (fs);
    428        1.1       cgd 		}
    429        1.1       cgd 	}
    430        1.1       cgd 	return (NULL);
    431        1.1       cgd }
    432       1.17     lukem 
    433       1.17     lukem /*
    434       1.17     lukem  * Search in the mounted file list for a file name.
    435       1.17     lukem  * This file name can be either the special or the path file name.
    436       1.17     lukem  *
    437       1.17     lukem  * The entries in the list are the BLOCK special names, not the
    438       1.17     lukem  * character special names.
    439       1.17     lukem  * The caller of mntinfosearch assures that the character device
    440       1.17     lukem  * is dumped (that is much faster)
    441       1.17     lukem  */
    442       1.33  christos struct statvfs *
    443       1.17     lukem mntinfosearch(const char *key)
    444       1.17     lukem {
    445       1.17     lukem 	int i, mntbufc;
    446       1.33  christos 	struct statvfs *mntbuf, *fs;
    447       1.38  christos 	const char *rn;
    448       1.38  christos 	char buf[MAXPATHLEN];
    449       1.17     lukem 
    450       1.17     lukem 	if ((mntbufc = getmntinfo(&mntbuf, MNT_NOWAIT)) == 0)
    451  1.42.26.1  christos 		quite(errno, "Can't get mount list");
    452       1.17     lukem 	for (fs = mntbuf, i = 0; i < mntbufc; i++, fs++) {
    453       1.35  perseant #ifdef DUMP_LFS
    454       1.35  perseant 		if (strcmp(fs->f_fstypename, "lfs") != 0)
    455       1.35  perseant 			continue;
    456       1.35  perseant #else /* ! DUMP_LFS */
    457       1.17     lukem 		if (strcmp(fs->f_fstypename, "ufs") != 0 &&
    458       1.17     lukem 		    strcmp(fs->f_fstypename, "ffs") != 0)
    459       1.17     lukem 			continue;
    460       1.35  perseant #endif /* ! DUMP_LFS */
    461       1.17     lukem 		if (strcmp(fs->f_mntonname, key) == 0 ||
    462       1.17     lukem 		    strcmp(fs->f_mntfromname, key) == 0)
    463       1.17     lukem 			return (fs);
    464       1.38  christos 		rn = getdiskrawname(buf, sizeof(buf), fs->f_mntfromname);
    465       1.17     lukem 		if (rn != NULL && strcmp(rn, key) == 0)
    466       1.17     lukem 			return (fs);
    467       1.17     lukem 	}
    468       1.17     lukem 	return (NULL);
    469       1.17     lukem }
    470       1.17     lukem 
    471        1.1       cgd 
    472        1.1       cgd /*
    473       1.15     lukem  *	Tell the operator what to do.
    474       1.15     lukem  *	arg:	w ==> just what to do; W ==> most recent dumps
    475        1.1       cgd  */
    476        1.1       cgd void
    477       1.15     lukem lastdump(char arg)
    478        1.1       cgd {
    479        1.7     lukem 	int i;
    480        1.7     lukem 	struct fstab *dt;
    481        1.7     lukem 	struct dumpdates *dtwalk;
    482       1.34  christos 	char *date;
    483       1.34  christos 	const char *lastname;
    484        1.2   mycroft 	int dumpme;
    485        1.1       cgd 	time_t tnow;
    486        1.1       cgd 
    487        1.1       cgd 	(void) time(&tnow);
    488        1.1       cgd 	getfstab();		/* /etc/fstab input */
    489        1.1       cgd 	initdumptimes();	/* /etc/dumpdates input */
    490        1.1       cgd 	qsort((char *) ddatev, nddates, sizeof(struct dumpdates *), datesort);
    491        1.1       cgd 
    492        1.1       cgd 	if (arg == 'w')
    493        1.1       cgd 		(void) printf("Dump these file systems:\n");
    494        1.1       cgd 	else
    495        1.1       cgd 		(void) printf("Last dump(s) done (Dump '>' file systems):\n");
    496        1.1       cgd 	lastname = "??";
    497        1.1       cgd 	ITITERATE(i, dtwalk) {
    498        1.1       cgd 		if (strncmp(lastname, dtwalk->dd_name,
    499        1.1       cgd 		    sizeof(dtwalk->dd_name)) == 0)
    500        1.1       cgd 			continue;
    501        1.1       cgd 		date = (char *)ctime(&dtwalk->dd_ddate);
    502        1.6     lukem 		date[24] = '\0';
    503        1.6     lukem 		strcpy(date + 16, date + 19);	/* blast away seconds */
    504        1.1       cgd 		lastname = dtwalk->dd_name;
    505        1.1       cgd 		dt = fstabsearch(dtwalk->dd_name);
    506        1.1       cgd 		dumpme = (dt != NULL &&
    507        1.1       cgd 		    dt->fs_freq != 0 &&
    508        1.1       cgd 		    dtwalk->dd_ddate < tnow - (dt->fs_freq * SECSPERDAY));
    509        1.1       cgd 		if (arg != 'w' || dumpme)
    510        1.1       cgd 			(void) printf(
    511        1.1       cgd 			    "%c %8s\t(%6s) Last dump: Level %c, Date %s\n",
    512        1.1       cgd 			    dumpme && (arg != 'w') ? '>' : ' ',
    513        1.1       cgd 			    dtwalk->dd_name,
    514        1.1       cgd 			    dt ? dt->fs_file : "",
    515        1.1       cgd 			    dtwalk->dd_level,
    516        1.1       cgd 			    date);
    517        1.1       cgd 	}
    518        1.1       cgd }
    519        1.1       cgd 
    520       1.40  dholland static int
    521       1.15     lukem datesort(const void *a1, const void *a2)
    522        1.1       cgd {
    523       1.34  christos 	const struct dumpdates *d1 = *(const struct dumpdates *const *)a1;
    524       1.34  christos 	const struct dumpdates *d2 = *(const struct dumpdates *const *)a2;
    525        1.1       cgd 	int diff;
    526        1.1       cgd 
    527        1.1       cgd 	diff = strncmp(d1->dd_name, d2->dd_name, sizeof(d1->dd_name));
    528        1.1       cgd 	if (diff == 0)
    529        1.1       cgd 		return (d2->dd_ddate - d1->dd_ddate);
    530        1.1       cgd 	return (diff);
    531        1.1       cgd }
    532