xref: /freebsd/sbin/dump/main.c (revision cedae1f47889656864a61fd100179fce0bb441ad)
18fae3551SRodney W. Grimes /*-
28fae3551SRodney W. Grimes  * Copyright (c) 1980, 1991, 1993, 1994
38fae3551SRodney W. Grimes  *	The Regents of the University of California.  All rights reserved.
48fae3551SRodney W. Grimes  *
58fae3551SRodney W. Grimes  * Redistribution and use in source and binary forms, with or without
68fae3551SRodney W. Grimes  * modification, are permitted provided that the following conditions
78fae3551SRodney W. Grimes  * are met:
88fae3551SRodney W. Grimes  * 1. Redistributions of source code must retain the above copyright
98fae3551SRodney W. Grimes  *    notice, this list of conditions and the following disclaimer.
108fae3551SRodney W. Grimes  * 2. Redistributions in binary form must reproduce the above copyright
118fae3551SRodney W. Grimes  *    notice, this list of conditions and the following disclaimer in the
128fae3551SRodney W. Grimes  *    documentation and/or other materials provided with the distribution.
138fae3551SRodney W. Grimes  * 3. All advertising materials mentioning features or use of this software
148fae3551SRodney W. Grimes  *    must display the following acknowledgement:
158fae3551SRodney W. Grimes  *	This product includes software developed by the University of
168fae3551SRodney W. Grimes  *	California, Berkeley and its contributors.
178fae3551SRodney W. Grimes  * 4. Neither the name of the University nor the names of its contributors
188fae3551SRodney W. Grimes  *    may be used to endorse or promote products derived from this software
198fae3551SRodney W. Grimes  *    without specific prior written permission.
208fae3551SRodney W. Grimes  *
218fae3551SRodney W. Grimes  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
228fae3551SRodney W. Grimes  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
238fae3551SRodney W. Grimes  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
248fae3551SRodney W. Grimes  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
258fae3551SRodney W. Grimes  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
268fae3551SRodney W. Grimes  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
278fae3551SRodney W. Grimes  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
288fae3551SRodney W. Grimes  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
298fae3551SRodney W. Grimes  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
308fae3551SRodney W. Grimes  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
318fae3551SRodney W. Grimes  * SUCH DAMAGE.
328fae3551SRodney W. Grimes  */
338fae3551SRodney W. Grimes 
348fae3551SRodney W. Grimes #ifndef lint
357580ffbbSPhilippe Charnier static const char copyright[] =
368fae3551SRodney W. Grimes "@(#) Copyright (c) 1980, 1991, 1993, 1994\n\
378fae3551SRodney W. Grimes 	The Regents of the University of California.  All rights reserved.\n";
388fae3551SRodney W. Grimes #endif /* not lint */
398fae3551SRodney W. Grimes 
408fae3551SRodney W. Grimes #ifndef lint
417580ffbbSPhilippe Charnier #if 0
42a37c38b8SPeter Wemm static char sccsid[] = "@(#)main.c	8.6 (Berkeley) 5/1/95";
437580ffbbSPhilippe Charnier #endif
447580ffbbSPhilippe Charnier static const char rcsid[] =
457f3dea24SPeter Wemm   "$FreeBSD$";
468fae3551SRodney W. Grimes #endif /* not lint */
478fae3551SRodney W. Grimes 
488fae3551SRodney W. Grimes #include <sys/param.h>
4904285c06SJoerg Wunsch #include <sys/stat.h>
508fae3551SRodney W. Grimes #include <sys/time.h>
518fae3551SRodney W. Grimes #ifdef sunos
528fae3551SRodney W. Grimes #include <sys/vnode.h>
538fae3551SRodney W. Grimes 
548fae3551SRodney W. Grimes #include <ufs/inode.h>
558fae3551SRodney W. Grimes #include <ufs/fs.h>
568fae3551SRodney W. Grimes #else
578fae3551SRodney W. Grimes #include <ufs/ufs/dinode.h>
58a37c38b8SPeter Wemm #include <ufs/ffs/fs.h>
598fae3551SRodney W. Grimes #endif
608fae3551SRodney W. Grimes 
618fae3551SRodney W. Grimes #include <protocols/dumprestore.h>
628fae3551SRodney W. Grimes 
638fae3551SRodney W. Grimes #include <ctype.h>
64a37c38b8SPeter Wemm #include <err.h>
658fae3551SRodney W. Grimes #include <fcntl.h>
668fae3551SRodney W. Grimes #include <fstab.h>
678fae3551SRodney W. Grimes #include <signal.h>
688fae3551SRodney W. Grimes #include <stdio.h>
698fae3551SRodney W. Grimes #include <stdlib.h>
708fae3551SRodney W. Grimes #include <string.h>
718fae3551SRodney W. Grimes #include <unistd.h>
728fae3551SRodney W. Grimes 
738fae3551SRodney W. Grimes #include "dump.h"
748fae3551SRodney W. Grimes #include "pathnames.h"
758fae3551SRodney W. Grimes 
768fae3551SRodney W. Grimes #ifndef SBOFF
778fae3551SRodney W. Grimes #define SBOFF (SBLOCK * DEV_BSIZE)
788fae3551SRodney W. Grimes #endif
798fae3551SRodney W. Grimes 
808fae3551SRodney W. Grimes int	notify = 0;	/* notify operator flag */
818fae3551SRodney W. Grimes int	blockswritten = 0;	/* number of blocks written on current tape */
828fae3551SRodney W. Grimes int	tapeno = 0;	/* current tape number */
83019420a5SJoerg Wunsch int	density = 0;	/* density in bytes/0.1" " <- this is for hilit19 */
848fae3551SRodney W. Grimes int	ntrec = NTREC;	/* # tape blocks in each tape record */
858fae3551SRodney W. Grimes int	cartridge = 0;	/* Assume non-cartridge tape */
861982ee69SGarrett Wollman int	dokerberos = 0;	/* Use Kerberos authentication */
878fae3551SRodney W. Grimes long	dev_bsize = 1;	/* recalculated below */
888fae3551SRodney W. Grimes long	blocksperfile;	/* output blocks per file */
898fae3551SRodney W. Grimes char	*host = NULL;	/* remote host (if any) */
908fae3551SRodney W. Grimes 
91a37c38b8SPeter Wemm static long numarg __P((char *, long, long));
92a37c38b8SPeter Wemm static void obsolete __P((int *, char **[]));
93a37c38b8SPeter Wemm static void usage __P((void));
948fae3551SRodney W. Grimes 
958fae3551SRodney W. Grimes int
968fae3551SRodney W. Grimes main(argc, argv)
978fae3551SRodney W. Grimes 	int argc;
98a37c38b8SPeter Wemm 	char *argv[];
998fae3551SRodney W. Grimes {
1008fae3551SRodney W. Grimes 	register ino_t ino;
1018fae3551SRodney W. Grimes 	register int dirty;
1028fae3551SRodney W. Grimes 	register struct dinode *dp;
1038fae3551SRodney W. Grimes 	register struct	fstab *dt;
1048fae3551SRodney W. Grimes 	register char *map;
105a37c38b8SPeter Wemm 	register int ch;
1068fae3551SRodney W. Grimes 	int i, anydirskipped, bflag = 0, Tflag = 0, honorlevel = 1;
1078fae3551SRodney W. Grimes 	ino_t maxino;
1088fae3551SRodney W. Grimes 
1098fae3551SRodney W. Grimes 	spcl.c_date = 0;
1108fae3551SRodney W. Grimes 	(void)time((time_t *)&spcl.c_date);
1118fae3551SRodney W. Grimes 
1128fae3551SRodney W. Grimes 	tsize = 0;	/* Default later, based on 'c' option for cart tapes */
113f5dcc2f1SWarner Losh 	if ((tape = getenv("TAPE")) == NULL)
1148fae3551SRodney W. Grimes 		tape = _PATH_DEFTAPE;
1158fae3551SRodney W. Grimes 	dumpdates = _PATH_DUMPDATES;
1168fae3551SRodney W. Grimes 	temp = _PATH_DTMP;
1178fae3551SRodney W. Grimes 	if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0)
1188fae3551SRodney W. Grimes 		quit("TP_BSIZE must be a multiple of DEV_BSIZE\n");
1198fae3551SRodney W. Grimes 	level = '0';
120a37c38b8SPeter Wemm 
121a37c38b8SPeter Wemm 	if (argc < 2)
122a37c38b8SPeter Wemm 		usage();
123a37c38b8SPeter Wemm 
124a37c38b8SPeter Wemm 	obsolete(&argc, &argv);
1251982ee69SGarrett Wollman #ifdef KERBEROS
1263860f781SMatthew Dillon #define optstring "0123456789aB:b:cd:f:h:kns:T:uWwD:"
1271982ee69SGarrett Wollman #else
1283860f781SMatthew Dillon #define optstring "0123456789aB:b:cd:f:h:ns:T:uWwD:"
1291982ee69SGarrett Wollman #endif
1301982ee69SGarrett Wollman 	while ((ch = getopt(argc, argv, optstring)) != -1)
1311982ee69SGarrett Wollman #undef optstring
132a37c38b8SPeter Wemm 		switch (ch) {
133a37c38b8SPeter Wemm 		/* dump level */
134a37c38b8SPeter Wemm 		case '0': case '1': case '2': case '3': case '4':
135a37c38b8SPeter Wemm 		case '5': case '6': case '7': case '8': case '9':
136a37c38b8SPeter Wemm 			level = ch;
1378fae3551SRodney W. Grimes 			break;
1388fae3551SRodney W. Grimes 
139a37c38b8SPeter Wemm 		case 'a':		/* `auto-size', Write to EOM. */
140a37c38b8SPeter Wemm 			unlimited = 1;
1418fae3551SRodney W. Grimes 			break;
1428fae3551SRodney W. Grimes 
143a37c38b8SPeter Wemm 		case 'B':		/* blocks per output file */
144a37c38b8SPeter Wemm 			blocksperfile = numarg("number of blocks per file",
145a37c38b8SPeter Wemm 			    1L, 0L);
1468fae3551SRodney W. Grimes 			break;
1478fae3551SRodney W. Grimes 
1488fae3551SRodney W. Grimes 		case 'b':		/* blocks per tape write */
149a37c38b8SPeter Wemm 			ntrec = numarg("number of blocks per write",
150a37c38b8SPeter Wemm 			    1L, 1000L);
1518fae3551SRodney W. Grimes 			break;
1528fae3551SRodney W. Grimes 
1538fae3551SRodney W. Grimes 		case 'c':		/* Tape is cart. not 9-track */
1548fae3551SRodney W. Grimes 			cartridge = 1;
1558fae3551SRodney W. Grimes 			break;
1568fae3551SRodney W. Grimes 
157a37c38b8SPeter Wemm 		case 'd':		/* density, in bits per inch */
158a37c38b8SPeter Wemm 			density = numarg("density", 10L, 327670L) / 10;
159a37c38b8SPeter Wemm 			if (density >= 625 && !bflag)
160a37c38b8SPeter Wemm 				ntrec = HIGHDENSITYTREC;
161af00957eSJoerg Wunsch 			break;
162af00957eSJoerg Wunsch 
163a37c38b8SPeter Wemm 		case 'f':		/* output file */
164a37c38b8SPeter Wemm 			tape = optarg;
1658fae3551SRodney W. Grimes 			break;
1668fae3551SRodney W. Grimes 
1673860f781SMatthew Dillon 		case 'D':
1683860f781SMatthew Dillon 			dumpdates = optarg;
1693860f781SMatthew Dillon 			break;
1703860f781SMatthew Dillon 
171a37c38b8SPeter Wemm 		case 'h':
172a37c38b8SPeter Wemm 			honorlevel = numarg("honor level", 0L, 10L);
1738fae3551SRodney W. Grimes 			break;
1748fae3551SRodney W. Grimes 
1751982ee69SGarrett Wollman #ifdef KERBEROS
1761982ee69SGarrett Wollman 		case 'k':
1771982ee69SGarrett Wollman 			dokerberos = 1;
1781982ee69SGarrett Wollman 			break;
1791982ee69SGarrett Wollman #endif
1801982ee69SGarrett Wollman 
1818fae3551SRodney W. Grimes 		case 'n':		/* notify operators */
1828fae3551SRodney W. Grimes 			notify = 1;
1838fae3551SRodney W. Grimes 			break;
1848fae3551SRodney W. Grimes 
185a37c38b8SPeter Wemm 		case 's':		/* tape size, feet */
186a37c38b8SPeter Wemm 			tsize = numarg("tape size", 1L, 0L) * 12 * 10;
1878fae3551SRodney W. Grimes 			break;
1888fae3551SRodney W. Grimes 
189a37c38b8SPeter Wemm 		case 'T':		/* time of last dump */
190a37c38b8SPeter Wemm 			spcl.c_ddate = unctime(optarg);
191a37c38b8SPeter Wemm 			if (spcl.c_ddate < 0) {
192a37c38b8SPeter Wemm 				(void)fprintf(stderr, "bad time \"%s\"\n",
193a37c38b8SPeter Wemm 				    optarg);
194f69e804dSJoseph Koshy 				exit(X_STARTUP);
1958fae3551SRodney W. Grimes 			}
196a37c38b8SPeter Wemm 			Tflag = 1;
197a37c38b8SPeter Wemm 			lastlevel = '?';
198a37c38b8SPeter Wemm 			break;
199a37c38b8SPeter Wemm 
200a37c38b8SPeter Wemm 		case 'u':		/* update /etc/dumpdates */
201a37c38b8SPeter Wemm 			uflag = 1;
202a37c38b8SPeter Wemm 			break;
203a37c38b8SPeter Wemm 
204a37c38b8SPeter Wemm 		case 'W':		/* what to do */
205a37c38b8SPeter Wemm 		case 'w':
206a37c38b8SPeter Wemm 			lastdump(ch);
207f69e804dSJoseph Koshy 			exit(X_FINOK);	/* do nothing else */
208a37c38b8SPeter Wemm 
209a37c38b8SPeter Wemm 		default:
210a37c38b8SPeter Wemm 			usage();
2118fae3551SRodney W. Grimes 		}
212a37c38b8SPeter Wemm 	argc -= optind;
213a37c38b8SPeter Wemm 	argv += optind;
214a37c38b8SPeter Wemm 
2158fae3551SRodney W. Grimes 	if (argc < 1) {
2168fae3551SRodney W. Grimes 		(void)fprintf(stderr, "Must specify disk or filesystem\n");
217f69e804dSJoseph Koshy 		exit(X_STARTUP);
2188fae3551SRodney W. Grimes 	}
2198fae3551SRodney W. Grimes 	disk = *argv++;
2208fae3551SRodney W. Grimes 	argc--;
2218fae3551SRodney W. Grimes 	if (argc >= 1) {
2228fae3551SRodney W. Grimes 		(void)fprintf(stderr, "Unknown arguments to dump:");
2238fae3551SRodney W. Grimes 		while (argc--)
2248fae3551SRodney W. Grimes 			(void)fprintf(stderr, " %s", *argv++);
2258fae3551SRodney W. Grimes 		(void)fprintf(stderr, "\n");
226f69e804dSJoseph Koshy 		exit(X_STARTUP);
2278fae3551SRodney W. Grimes 	}
2288fae3551SRodney W. Grimes 	if (Tflag && uflag) {
2298fae3551SRodney W. Grimes 	        (void)fprintf(stderr,
2308fae3551SRodney W. Grimes 		    "You cannot use the T and u flags together.\n");
231f69e804dSJoseph Koshy 		exit(X_STARTUP);
2328fae3551SRodney W. Grimes 	}
2338fae3551SRodney W. Grimes 	if (strcmp(tape, "-") == 0) {
2348fae3551SRodney W. Grimes 		pipeout++;
2358fae3551SRodney W. Grimes 		tape = "standard output";
2368fae3551SRodney W. Grimes 	}
2378fae3551SRodney W. Grimes 
2388fae3551SRodney W. Grimes 	if (blocksperfile)
2398fae3551SRodney W. Grimes 		blocksperfile = blocksperfile / ntrec * ntrec; /* round down */
240af00957eSJoerg Wunsch 	else if (!unlimited) {
2418fae3551SRodney W. Grimes 		/*
2428fae3551SRodney W. Grimes 		 * Determine how to default tape size and density
2438fae3551SRodney W. Grimes 		 *
2448fae3551SRodney W. Grimes 		 *         	density				tape size
2458fae3551SRodney W. Grimes 		 * 9-track	1600 bpi (160 bytes/.1")	2300 ft.
2468fae3551SRodney W. Grimes 		 * 9-track	6250 bpi (625 bytes/.1")	2300 ft.
2478fae3551SRodney W. Grimes 		 * cartridge	8000 bpi (100 bytes/.1")	1700 ft.
2488fae3551SRodney W. Grimes 		 *						(450*4 - slop)
249019420a5SJoerg Wunsch 		 * hilit19 hits again: "
2508fae3551SRodney W. Grimes 		 */
2518fae3551SRodney W. Grimes 		if (density == 0)
2528fae3551SRodney W. Grimes 			density = cartridge ? 100 : 160;
2538fae3551SRodney W. Grimes 		if (tsize == 0)
2548fae3551SRodney W. Grimes 			tsize = cartridge ? 1700L*120L : 2300L*120L;
2558fae3551SRodney W. Grimes 	}
2568fae3551SRodney W. Grimes 
257a37c38b8SPeter Wemm 	if (strchr(tape, ':')) {
2588fae3551SRodney W. Grimes 		host = tape;
259a37c38b8SPeter Wemm 		tape = strchr(host, ':');
2608fae3551SRodney W. Grimes 		*tape++ = '\0';
2618fae3551SRodney W. Grimes #ifdef RDUMP
2629e0dc595SPeter Wemm 		if (index(tape, '\n')) {
263f5dcc2f1SWarner Losh 		    (void)fprintf(stderr, "invalid characters in tape\n");
264f69e804dSJoseph Koshy 		    exit(X_STARTUP);
265f5dcc2f1SWarner Losh 		}
2668fae3551SRodney W. Grimes 		if (rmthost(host) == 0)
267f69e804dSJoseph Koshy 			exit(X_STARTUP);
2688fae3551SRodney W. Grimes #else
2698fae3551SRodney W. Grimes 		(void)fprintf(stderr, "remote dump not enabled\n");
270f69e804dSJoseph Koshy 		exit(X_STARTUP);
2718fae3551SRodney W. Grimes #endif
2728fae3551SRodney W. Grimes 	}
2738fae3551SRodney W. Grimes 	(void)setuid(getuid()); /* rmthost() is the only reason to be setuid */
2748fae3551SRodney W. Grimes 
2758fae3551SRodney W. Grimes 	if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
2768fae3551SRodney W. Grimes 		signal(SIGHUP, sig);
2778fae3551SRodney W. Grimes 	if (signal(SIGTRAP, SIG_IGN) != SIG_IGN)
2788fae3551SRodney W. Grimes 		signal(SIGTRAP, sig);
2798fae3551SRodney W. Grimes 	if (signal(SIGFPE, SIG_IGN) != SIG_IGN)
2808fae3551SRodney W. Grimes 		signal(SIGFPE, sig);
2818fae3551SRodney W. Grimes 	if (signal(SIGBUS, SIG_IGN) != SIG_IGN)
2828fae3551SRodney W. Grimes 		signal(SIGBUS, sig);
2838fae3551SRodney W. Grimes 	if (signal(SIGSEGV, SIG_IGN) != SIG_IGN)
2848fae3551SRodney W. Grimes 		signal(SIGSEGV, sig);
2858fae3551SRodney W. Grimes 	if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
2868fae3551SRodney W. Grimes 		signal(SIGTERM, sig);
2878fae3551SRodney W. Grimes 	if (signal(SIGINT, interrupt) == SIG_IGN)
2888fae3551SRodney W. Grimes 		signal(SIGINT, SIG_IGN);
2898fae3551SRodney W. Grimes 
2908fae3551SRodney W. Grimes 	set_operators();	/* /etc/group snarfed */
2918fae3551SRodney W. Grimes 	getfstab();		/* /etc/fstab snarfed */
2928fae3551SRodney W. Grimes 	/*
2938fae3551SRodney W. Grimes 	 *	disk can be either the full special file name,
2948fae3551SRodney W. Grimes 	 *	the suffix of the special file name,
2958fae3551SRodney W. Grimes 	 *	the special name missing the leading '/',
2968fae3551SRodney W. Grimes 	 *	the file system name with or without the leading '/'.
2978fae3551SRodney W. Grimes 	 */
2988fae3551SRodney W. Grimes 	dt = fstabsearch(disk);
2998fae3551SRodney W. Grimes 	if (dt != NULL) {
3008fae3551SRodney W. Grimes 		disk = rawname(dt->fs_spec);
3018fae3551SRodney W. Grimes 		(void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
3028fae3551SRodney W. Grimes 		(void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN);
3038fae3551SRodney W. Grimes 	} else {
3048fae3551SRodney W. Grimes 		(void)strncpy(spcl.c_dev, disk, NAMELEN);
3058fae3551SRodney W. Grimes 		(void)strncpy(spcl.c_filesys, "an unlisted file system",
3068fae3551SRodney W. Grimes 		    NAMELEN);
3078fae3551SRodney W. Grimes 	}
308f5dcc2f1SWarner Losh 	spcl.c_dev[NAMELEN-1]='\0';
309f5dcc2f1SWarner Losh 	spcl.c_filesys[NAMELEN-1]='\0';
3108fae3551SRodney W. Grimes 	(void)strcpy(spcl.c_label, "none");
3118fae3551SRodney W. Grimes 	(void)gethostname(spcl.c_host, NAMELEN);
3128fae3551SRodney W. Grimes 	spcl.c_level = level - '0';
3138fae3551SRodney W. Grimes 	spcl.c_type = TS_TAPE;
3148fae3551SRodney W. Grimes 	if (!Tflag)
3158fae3551SRodney W. Grimes 	        getdumptime();		/* /etc/dumpdates snarfed */
3168fae3551SRodney W. Grimes 
3178fae3551SRodney W. Grimes 	msg("Date of this level %c dump: %s", level,
3188fae3551SRodney W. Grimes 		spcl.c_date == 0 ? "the epoch\n" : ctime(&spcl.c_date));
3198fae3551SRodney W. Grimes  	msg("Date of last level %c dump: %s", lastlevel,
3208fae3551SRodney W. Grimes 		spcl.c_ddate == 0 ? "the epoch\n" : ctime(&spcl.c_ddate));
3218fae3551SRodney W. Grimes 	msg("Dumping %s ", disk);
3228fae3551SRodney W. Grimes 	if (dt != NULL)
3238fae3551SRodney W. Grimes 		msgtail("(%s) ", dt->fs_file);
3248fae3551SRodney W. Grimes 	if (host)
3258fae3551SRodney W. Grimes 		msgtail("to %s on host %s\n", tape, host);
3268fae3551SRodney W. Grimes 	else
3278fae3551SRodney W. Grimes 		msgtail("to %s\n", tape);
3288fae3551SRodney W. Grimes 
3298fae3551SRodney W. Grimes 	if ((diskfd = open(disk, O_RDONLY)) < 0) {
3308fae3551SRodney W. Grimes 		msg("Cannot open %s\n", disk);
331f69e804dSJoseph Koshy 		exit(X_STARTUP);
3328fae3551SRodney W. Grimes 	}
3338fae3551SRodney W. Grimes 	sync();
3348fae3551SRodney W. Grimes 	sblock = (struct fs *)sblock_buf;
3358fae3551SRodney W. Grimes 	bread(SBOFF, (char *) sblock, SBSIZE);
3368fae3551SRodney W. Grimes 	if (sblock->fs_magic != FS_MAGIC)
3378fae3551SRodney W. Grimes 		quit("bad sblock magic number\n");
3388fae3551SRodney W. Grimes 	dev_bsize = sblock->fs_fsize / fsbtodb(sblock, 1);
3398fae3551SRodney W. Grimes 	dev_bshift = ffs(dev_bsize) - 1;
3408fae3551SRodney W. Grimes 	if (dev_bsize != (1 << dev_bshift))
3418fae3551SRodney W. Grimes 		quit("dev_bsize (%d) is not a power of 2", dev_bsize);
3428fae3551SRodney W. Grimes 	tp_bshift = ffs(TP_BSIZE) - 1;
3438fae3551SRodney W. Grimes 	if (TP_BSIZE != (1 << tp_bshift))
3448fae3551SRodney W. Grimes 		quit("TP_BSIZE (%d) is not a power of 2", TP_BSIZE);
3458fae3551SRodney W. Grimes #ifdef FS_44INODEFMT
3468fae3551SRodney W. Grimes 	if (sblock->fs_inodefmt >= FS_44INODEFMT)
3478fae3551SRodney W. Grimes 		spcl.c_flags |= DR_NEWINODEFMT;
3488fae3551SRodney W. Grimes #endif
3498fae3551SRodney W. Grimes 	maxino = sblock->fs_ipg * sblock->fs_ncg;
3508fae3551SRodney W. Grimes 	mapsize = roundup(howmany(maxino, NBBY), TP_BSIZE);
3518fae3551SRodney W. Grimes 	usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
3528fae3551SRodney W. Grimes 	dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char));
3538fae3551SRodney W. Grimes 	dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
3548fae3551SRodney W. Grimes 	tapesize = 3 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
3558fae3551SRodney W. Grimes 
3568fae3551SRodney W. Grimes 	nonodump = spcl.c_level < honorlevel;
3578fae3551SRodney W. Grimes 
3588fae3551SRodney W. Grimes 	msg("mapping (Pass I) [regular files]\n");
3598fae3551SRodney W. Grimes 	anydirskipped = mapfiles(maxino, &tapesize);
3608fae3551SRodney W. Grimes 
3618fae3551SRodney W. Grimes 	msg("mapping (Pass II) [directories]\n");
3628fae3551SRodney W. Grimes 	while (anydirskipped) {
3638fae3551SRodney W. Grimes 		anydirskipped = mapdirs(maxino, &tapesize);
3648fae3551SRodney W. Grimes 	}
3658fae3551SRodney W. Grimes 
366af00957eSJoerg Wunsch 	if (pipeout || unlimited) {
3678fae3551SRodney W. Grimes 		tapesize += 10;	/* 10 trailer blocks */
3688fae3551SRodney W. Grimes 		msg("estimated %ld tape blocks.\n", tapesize);
3698fae3551SRodney W. Grimes 	} else {
3708fae3551SRodney W. Grimes 		double fetapes;
3718fae3551SRodney W. Grimes 
3728fae3551SRodney W. Grimes 		if (blocksperfile)
3738fae3551SRodney W. Grimes 			fetapes = (double) tapesize / blocksperfile;
3748fae3551SRodney W. Grimes 		else if (cartridge) {
3758fae3551SRodney W. Grimes 			/* Estimate number of tapes, assuming streaming stops at
3768fae3551SRodney W. Grimes 			   the end of each block written, and not in mid-block.
3778fae3551SRodney W. Grimes 			   Assume no erroneous blocks; this can be compensated
3788fae3551SRodney W. Grimes 			   for with an artificially low tape size. */
3798fae3551SRodney W. Grimes 			fetapes =
38071fbc63cSPaul Traina 			(	  (double) tapesize	/* blocks */
3818fae3551SRodney W. Grimes 				* TP_BSIZE	/* bytes/block */
382019420a5SJoerg Wunsch 				* (1.0/density)	/* 0.1" / byte " */
3838fae3551SRodney W. Grimes 			  +
38471fbc63cSPaul Traina 				  (double) tapesize	/* blocks */
3858fae3551SRodney W. Grimes 				* (1.0/ntrec)	/* streaming-stops per block */
386019420a5SJoerg Wunsch 				* 15.48		/* 0.1" / streaming-stop " */
387019420a5SJoerg Wunsch 			) * (1.0 / tsize );	/* tape / 0.1" " */
3888fae3551SRodney W. Grimes 		} else {
3898fae3551SRodney W. Grimes 			/* Estimate number of tapes, for old fashioned 9-track
3908fae3551SRodney W. Grimes 			   tape */
3918fae3551SRodney W. Grimes 			int tenthsperirg = (density == 625) ? 3 : 7;
3928fae3551SRodney W. Grimes 			fetapes =
39371fbc63cSPaul Traina 			(	  (double) tapesize	/* blocks */
3948fae3551SRodney W. Grimes 				* TP_BSIZE	/* bytes / block */
395019420a5SJoerg Wunsch 				* (1.0/density)	/* 0.1" / byte " */
3968fae3551SRodney W. Grimes 			  +
39771fbc63cSPaul Traina 				  (double) tapesize	/* blocks */
3988fae3551SRodney W. Grimes 				* (1.0/ntrec)	/* IRG's / block */
399019420a5SJoerg Wunsch 				* tenthsperirg	/* 0.1" / IRG " */
400019420a5SJoerg Wunsch 			) * (1.0 / tsize );	/* tape / 0.1" " */
4018fae3551SRodney W. Grimes 		}
4028fae3551SRodney W. Grimes 		etapes = fetapes;		/* truncating assignment */
4038fae3551SRodney W. Grimes 		etapes++;
4048fae3551SRodney W. Grimes 		/* count the dumped inodes map on each additional tape */
4058fae3551SRodney W. Grimes 		tapesize += (etapes - 1) *
4068fae3551SRodney W. Grimes 			(howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
4078fae3551SRodney W. Grimes 		tapesize += etapes + 10;	/* headers + 10 trailer blks */
4088fae3551SRodney W. Grimes 		msg("estimated %ld tape blocks on %3.2f tape(s).\n",
4098fae3551SRodney W. Grimes 		    tapesize, fetapes);
4108fae3551SRodney W. Grimes 	}
4118fae3551SRodney W. Grimes 
4128fae3551SRodney W. Grimes 	/*
4138fae3551SRodney W. Grimes 	 * Allocate tape buffer.
4148fae3551SRodney W. Grimes 	 */
4158fae3551SRodney W. Grimes 	if (!alloctape())
4167580ffbbSPhilippe Charnier 		quit(
4177580ffbbSPhilippe Charnier 	"can't allocate tape buffers - try a smaller blocking factor.\n");
4188fae3551SRodney W. Grimes 
4198fae3551SRodney W. Grimes 	startnewtape(1);
4208fae3551SRodney W. Grimes 	(void)time((time_t *)&(tstart_writing));
4218fae3551SRodney W. Grimes 	dumpmap(usedinomap, TS_CLRI, maxino - 1);
4228fae3551SRodney W. Grimes 
4238fae3551SRodney W. Grimes 	msg("dumping (Pass III) [directories]\n");
4248fae3551SRodney W. Grimes 	dirty = 0;		/* XXX just to get gcc to shut up */
4258fae3551SRodney W. Grimes 	for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
4268fae3551SRodney W. Grimes 		if (((ino - 1) % NBBY) == 0)	/* map is offset by 1 */
4278fae3551SRodney W. Grimes 			dirty = *map++;
4288fae3551SRodney W. Grimes 		else
4298fae3551SRodney W. Grimes 			dirty >>= 1;
4308fae3551SRodney W. Grimes 		if ((dirty & 1) == 0)
4318fae3551SRodney W. Grimes 			continue;
4328fae3551SRodney W. Grimes 		/*
4338fae3551SRodney W. Grimes 		 * Skip directory inodes deleted and maybe reallocated
4348fae3551SRodney W. Grimes 		 */
4358fae3551SRodney W. Grimes 		dp = getino(ino);
4368fae3551SRodney W. Grimes 		if ((dp->di_mode & IFMT) != IFDIR)
4378fae3551SRodney W. Grimes 			continue;
4388fae3551SRodney W. Grimes 		(void)dumpino(dp, ino);
4398fae3551SRodney W. Grimes 	}
4408fae3551SRodney W. Grimes 
4418fae3551SRodney W. Grimes 	msg("dumping (Pass IV) [regular files]\n");
4428fae3551SRodney W. Grimes 	for (map = dumpinomap, ino = 1; ino < maxino; ino++) {
4438fae3551SRodney W. Grimes 		int mode;
4448fae3551SRodney W. Grimes 
4458fae3551SRodney W. Grimes 		if (((ino - 1) % NBBY) == 0)	/* map is offset by 1 */
4468fae3551SRodney W. Grimes 			dirty = *map++;
4478fae3551SRodney W. Grimes 		else
4488fae3551SRodney W. Grimes 			dirty >>= 1;
4498fae3551SRodney W. Grimes 		if ((dirty & 1) == 0)
4508fae3551SRodney W. Grimes 			continue;
4518fae3551SRodney W. Grimes 		/*
4528fae3551SRodney W. Grimes 		 * Skip inodes deleted and reallocated as directories.
4538fae3551SRodney W. Grimes 		 */
4548fae3551SRodney W. Grimes 		dp = getino(ino);
4558fae3551SRodney W. Grimes 		mode = dp->di_mode & IFMT;
4568fae3551SRodney W. Grimes 		if (mode == IFDIR)
4578fae3551SRodney W. Grimes 			continue;
4588fae3551SRodney W. Grimes 		(void)dumpino(dp, ino);
4598fae3551SRodney W. Grimes 	}
4608fae3551SRodney W. Grimes 
461019420a5SJoerg Wunsch 	(void)time((time_t *)&(tend_writing));
4628fae3551SRodney W. Grimes 	spcl.c_type = TS_END;
4638fae3551SRodney W. Grimes 	for (i = 0; i < ntrec; i++)
4648fae3551SRodney W. Grimes 		writeheader(maxino - 1);
4658fae3551SRodney W. Grimes 	if (pipeout)
4663be059baSJoerg Wunsch 		msg("DUMP: %ld tape blocks\n", spcl.c_tapea);
4678fae3551SRodney W. Grimes 	else
4688878be20SJean-Marc Zucconi 		msg("DUMP: %ld tape blocks on %d volume%s\n",
4698878be20SJean-Marc Zucconi 		    spcl.c_tapea, spcl.c_volume,
4708878be20SJean-Marc Zucconi 		    (spcl.c_volume == 1) ? "" : "s");
471019420a5SJoerg Wunsch 
472019420a5SJoerg Wunsch 	/* report dump performance, avoid division through zero */
473019420a5SJoerg Wunsch 	if (tend_writing - tstart_writing == 0)
474019420a5SJoerg Wunsch 		msg("finished in less than a second\n");
475019420a5SJoerg Wunsch 	else
476019420a5SJoerg Wunsch 		msg("finished in %d seconds, throughput %d KBytes/sec\n",
477019420a5SJoerg Wunsch 		    tend_writing - tstart_writing,
478019420a5SJoerg Wunsch 		    spcl.c_tapea / (tend_writing - tstart_writing));
479019420a5SJoerg Wunsch 
4808fae3551SRodney W. Grimes 	putdumptime();
4818fae3551SRodney W. Grimes 	trewind();
482bfa0b298SPoul-Henning Kamp 	broadcast("DUMP IS DONE!\a\a\n");
4838fae3551SRodney W. Grimes 	msg("DUMP IS DONE\n");
4848fae3551SRodney W. Grimes 	Exit(X_FINOK);
4858fae3551SRodney W. Grimes 	/* NOTREACHED */
4868fae3551SRodney W. Grimes }
4878fae3551SRodney W. Grimes 
488a37c38b8SPeter Wemm static void
489a37c38b8SPeter Wemm usage()
490a37c38b8SPeter Wemm {
491a1e5f53bSPhilippe Charnier 	fprintf(stderr,
492a1e5f53bSPhilippe Charnier 		"usage: dump [-0123456789ac"
4931982ee69SGarrett Wollman #ifdef KERBEROS
4941982ee69SGarrett Wollman 		"k"
4951982ee69SGarrett Wollman #endif
4961982ee69SGarrett Wollman 		"nu] [-B records] [-b blocksize] [-d density] [-f file]\n"
4971982ee69SGarrett Wollman 		"            [-h level] [-s feet] [-T date] filesystem\n"
4981982ee69SGarrett Wollman 		"       dump [-W | -w]\n");
499f69e804dSJoseph Koshy 	exit(X_STARTUP);
500a37c38b8SPeter Wemm }
501a37c38b8SPeter Wemm 
5028fae3551SRodney W. Grimes /*
5038fae3551SRodney W. Grimes  * Pick up a numeric argument.  It must be nonnegative and in the given
5048fae3551SRodney W. Grimes  * range (except that a vmax of 0 means unlimited).
5058fae3551SRodney W. Grimes  */
5068fae3551SRodney W. Grimes static long
507a37c38b8SPeter Wemm numarg(meaning, vmin, vmax)
5088fae3551SRodney W. Grimes 	char *meaning;
5098fae3551SRodney W. Grimes 	long vmin, vmax;
5108fae3551SRodney W. Grimes {
511a37c38b8SPeter Wemm 	char *p;
5128fae3551SRodney W. Grimes 	long val;
5138fae3551SRodney W. Grimes 
514a37c38b8SPeter Wemm 	val = strtol(optarg, &p, 10);
515a37c38b8SPeter Wemm 	if (*p)
516a37c38b8SPeter Wemm 		errx(1, "illegal %s -- %s", meaning, optarg);
5178fae3551SRodney W. Grimes 	if (val < vmin || (vmax && val > vmax))
518a37c38b8SPeter Wemm 		errx(1, "%s must be between %ld and %ld", meaning, vmin, vmax);
5198fae3551SRodney W. Grimes 	return (val);
5208fae3551SRodney W. Grimes }
5218fae3551SRodney W. Grimes 
5228fae3551SRodney W. Grimes void
5238fae3551SRodney W. Grimes sig(signo)
5248fae3551SRodney W. Grimes 	int signo;
5258fae3551SRodney W. Grimes {
5268fae3551SRodney W. Grimes 	switch(signo) {
5278fae3551SRodney W. Grimes 	case SIGALRM:
5288fae3551SRodney W. Grimes 	case SIGBUS:
5298fae3551SRodney W. Grimes 	case SIGFPE:
5308fae3551SRodney W. Grimes 	case SIGHUP:
5318fae3551SRodney W. Grimes 	case SIGTERM:
5328fae3551SRodney W. Grimes 	case SIGTRAP:
5338fae3551SRodney W. Grimes 		if (pipeout)
5348fae3551SRodney W. Grimes 			quit("Signal on pipe: cannot recover\n");
5358fae3551SRodney W. Grimes 		msg("Rewriting attempted as response to unknown signal.\n");
5368fae3551SRodney W. Grimes 		(void)fflush(stderr);
5378fae3551SRodney W. Grimes 		(void)fflush(stdout);
5388fae3551SRodney W. Grimes 		close_rewind();
5398fae3551SRodney W. Grimes 		exit(X_REWRITE);
5408fae3551SRodney W. Grimes 		/* NOTREACHED */
5418fae3551SRodney W. Grimes 	case SIGSEGV:
5428fae3551SRodney W. Grimes 		msg("SIGSEGV: ABORTING!\n");
5438fae3551SRodney W. Grimes 		(void)signal(SIGSEGV, SIG_DFL);
5448fae3551SRodney W. Grimes 		(void)kill(0, SIGSEGV);
5458fae3551SRodney W. Grimes 		/* NOTREACHED */
5468fae3551SRodney W. Grimes 	}
5478fae3551SRodney W. Grimes }
5488fae3551SRodney W. Grimes 
5498fae3551SRodney W. Grimes char *
5508fae3551SRodney W. Grimes rawname(cp)
5518fae3551SRodney W. Grimes 	char *cp;
5528fae3551SRodney W. Grimes {
5538fae3551SRodney W. Grimes 	static char rawbuf[MAXPATHLEN];
55404285c06SJoerg Wunsch 	char *dp;
55504285c06SJoerg Wunsch 	struct stat sb;
55604285c06SJoerg Wunsch 
55704285c06SJoerg Wunsch 	if (stat(cp, &sb) == 0) {
55804285c06SJoerg Wunsch 		/*
55904285c06SJoerg Wunsch 		 * If the name already refers to a raw device, return
56004285c06SJoerg Wunsch 		 * it immediately without tampering.
56104285c06SJoerg Wunsch 		 */
56204285c06SJoerg Wunsch 		if ((sb.st_mode & S_IFMT) == S_IFCHR)
56304285c06SJoerg Wunsch 			return (cp);
56404285c06SJoerg Wunsch 	}
56504285c06SJoerg Wunsch 
56604285c06SJoerg Wunsch 	dp = strrchr(cp, '/');
5678fae3551SRodney W. Grimes 
5688fae3551SRodney W. Grimes 	if (dp == NULL)
5698fae3551SRodney W. Grimes 		return (NULL);
5708fae3551SRodney W. Grimes 	*dp = '\0';
57156d5f6dbSJoerg Wunsch 	(void)strncpy(rawbuf, cp, MAXPATHLEN - 1);
572f5dcc2f1SWarner Losh 	rawbuf[MAXPATHLEN-1] = '\0';
5738fae3551SRodney W. Grimes 	*dp = '/';
574abdec3e3SJordan K. Hubbard 	(void)strncat(rawbuf, "/r", MAXPATHLEN - 1 - strlen(rawbuf));
575abdec3e3SJordan K. Hubbard 	(void)strncat(rawbuf, dp + 1, MAXPATHLEN - 1 - strlen(rawbuf));
5768fae3551SRodney W. Grimes 	return (rawbuf);
5778fae3551SRodney W. Grimes }
5788fae3551SRodney W. Grimes 
579a37c38b8SPeter Wemm /*
580a37c38b8SPeter Wemm  * obsolete --
581a37c38b8SPeter Wemm  *	Change set of key letters and ordered arguments into something
582a37c38b8SPeter Wemm  *	getopt(3) will like.
583a37c38b8SPeter Wemm  */
584a37c38b8SPeter Wemm static void
585a37c38b8SPeter Wemm obsolete(argcp, argvp)
586a37c38b8SPeter Wemm 	int *argcp;
587a37c38b8SPeter Wemm 	char **argvp[];
5888fae3551SRodney W. Grimes {
589a37c38b8SPeter Wemm 	int argc, flags;
590a37c38b8SPeter Wemm 	char *ap, **argv, *flagsp, **nargv, *p;
5918fae3551SRodney W. Grimes 
592a37c38b8SPeter Wemm 	/* Setup. */
593a37c38b8SPeter Wemm 	argv = *argvp;
594a37c38b8SPeter Wemm 	argc = *argcp;
595a37c38b8SPeter Wemm 
596a37c38b8SPeter Wemm 	/* Return if no arguments or first argument has leading dash. */
597a37c38b8SPeter Wemm 	ap = argv[1];
598a37c38b8SPeter Wemm 	if (argc == 1 || *ap == '-')
599a37c38b8SPeter Wemm 		return;
600a37c38b8SPeter Wemm 
601a37c38b8SPeter Wemm 	/* Allocate space for new arguments. */
602a37c38b8SPeter Wemm 	if ((*argvp = nargv = malloc((argc + 1) * sizeof(char *))) == NULL ||
603a37c38b8SPeter Wemm 	    (p = flagsp = malloc(strlen(ap) + 2)) == NULL)
604a37c38b8SPeter Wemm 		err(1, NULL);
605a37c38b8SPeter Wemm 
606a37c38b8SPeter Wemm 	*nargv++ = *argv;
607a37c38b8SPeter Wemm 	argv += 2;
608a37c38b8SPeter Wemm 
609a37c38b8SPeter Wemm 	for (flags = 0; *ap; ++ap) {
610a37c38b8SPeter Wemm 		switch (*ap) {
611a37c38b8SPeter Wemm 		case 'B':
612a37c38b8SPeter Wemm 		case 'b':
613a37c38b8SPeter Wemm 		case 'd':
614a37c38b8SPeter Wemm 		case 'f':
615cedae1f4SMatthew Dillon 		case 'D':
616a37c38b8SPeter Wemm 		case 'h':
617a37c38b8SPeter Wemm 		case 's':
618a37c38b8SPeter Wemm 		case 'T':
619a37c38b8SPeter Wemm 			if (*argv == NULL) {
620a37c38b8SPeter Wemm 				warnx("option requires an argument -- %c", *ap);
621a37c38b8SPeter Wemm 				usage();
6228fae3551SRodney W. Grimes 			}
623a37c38b8SPeter Wemm 			if ((nargv[0] = malloc(strlen(*argv) + 2 + 1)) == NULL)
624a37c38b8SPeter Wemm 				err(1, NULL);
625a37c38b8SPeter Wemm 			nargv[0][0] = '-';
626a37c38b8SPeter Wemm 			nargv[0][1] = *ap;
627a37c38b8SPeter Wemm 			(void)strcpy(&nargv[0][2], *argv);
628a37c38b8SPeter Wemm 			++argv;
629a37c38b8SPeter Wemm 			++nargv;
630a37c38b8SPeter Wemm 			break;
631a37c38b8SPeter Wemm 		default:
632a37c38b8SPeter Wemm 			if (!flags) {
633a37c38b8SPeter Wemm 				*p++ = '-';
634a37c38b8SPeter Wemm 				flags = 1;
635a37c38b8SPeter Wemm 			}
636a37c38b8SPeter Wemm 			*p++ = *ap;
637a37c38b8SPeter Wemm 			break;
638a37c38b8SPeter Wemm 		}
639a37c38b8SPeter Wemm 	}
640a37c38b8SPeter Wemm 
641a37c38b8SPeter Wemm 	/* Terminate flags. */
642a37c38b8SPeter Wemm 	if (flags) {
643a37c38b8SPeter Wemm 		*p = '\0';
644a37c38b8SPeter Wemm 		*nargv++ = flagsp;
645a37c38b8SPeter Wemm 	}
646a37c38b8SPeter Wemm 
647a37c38b8SPeter Wemm 	/* Copy remaining arguments. */
6487580ffbbSPhilippe Charnier 	while ((*nargv++ = *argv++));
649a37c38b8SPeter Wemm 
650a37c38b8SPeter Wemm 	/* Update argument count. */
651a37c38b8SPeter Wemm 	*argcp = nargv - *argvp - 1;
652a37c38b8SPeter Wemm }
653