xref: /netbsd-src/usr.sbin/dumpfs/dumpfs.c (revision 6dffe8d42bd46273f674d7ab834e7be9b1af990e)
1 /*	$NetBSD: dumpfs.c,v 1.53 2009/05/07 06:40:38 lukem Exp $	*/
2 
3 /*
4  * Copyright (c) 1983, 1992, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the University nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  */
31 
32 #include <sys/cdefs.h>
33 #ifndef lint
34 __COPYRIGHT("@(#) Copyright (c) 1983, 1992, 1993\
35  The Regents of the University of California.  All rights reserved.");
36 #endif /* not lint */
37 
38 #ifndef lint
39 #if 0
40 static char sccsid[] = "@(#)dumpfs.c	8.5 (Berkeley) 4/29/95";
41 #else
42 __RCSID("$NetBSD: dumpfs.c,v 1.53 2009/05/07 06:40:38 lukem Exp $");
43 #endif
44 #endif /* not lint */
45 
46 #include <sys/param.h>
47 #include <sys/time.h>
48 
49 #include <ufs/ufs/dinode.h>
50 #include <ufs/ufs/ufs_bswap.h>
51 #include <ufs/ffs/fs.h>
52 #include <ufs/ffs/ffs_extern.h>
53 
54 #include <err.h>
55 #include <errno.h>
56 #include <fcntl.h>
57 #include <fstab.h>
58 #include <stdio.h>
59 #include <stdlib.h>
60 #include <string.h>
61 #include <stddef.h>
62 #include <unistd.h>
63 #include <util.h>
64 
65 union fsun {
66 	struct fs fs;
67 	char pad[MAXBSIZE];
68 } fsun;
69 #define	afs	fsun.fs
70 
71 uint16_t opostblsave[32*8];
72 
73 union {
74 	struct cg cg;
75 	char pad[MAXBSIZE];
76 } cgun;
77 #define	acg	cgun.cg
78 
79 #define OPT_FLAG(ch)	(1 << ((ch) & 31))
80 #define ISOPT(opt)	(opt_flags & (opt))
81 #define opt_alt_super	OPT_FLAG('a')
82 #define opt_superblock	OPT_FLAG('s')
83 #define opt_cg_summary	OPT_FLAG('m')
84 #define opt_cg_info	OPT_FLAG('c')
85 #define opt_inodes	OPT_FLAG('i')
86 #define opt_verbose	OPT_FLAG('v')
87 #define DFLT_CHECK (opt_alt_super | opt_cg_info | opt_inodes | \
88     opt_cg_summary | opt_superblock)
89 #define DFLT_OPTS	(opt_superblock | opt_cg_summary | opt_cg_info | opt_verbose)
90 
91 long	dev_bsize = 512;
92 int	needswap, printold, is_ufs2;
93 int	Fflag;
94 
95 uint	opt_flags;
96 
97 int	dumpfs(const char *);
98 int	print_superblock(struct fs *, uint16_t *, const char *, int, off_t);
99 int	print_cgsum(const char *, int);
100 int	print_cginfo(const char *, int);
101 int	print_inodes(const char *, int, int, int);
102 int	print_alt_super(const char *, int);
103 int	dumpcg(const char *, int, int);
104 int	main(int, char **);
105 int	openpartition(const char *, int, char *, size_t);
106 void	pbits(int, void *, int);
107 void	usage(void);
108 void	print_ufs1_inode(int, int, void *);
109 void	print_ufs2_inode(int, int, void *);
110 void	fix_superblock(struct fs *, uint16_t *);
111 
112 int
113 main(int argc, char *argv[])
114 {
115 	int ch, eval;
116 
117 	while ((ch = getopt(argc, argv, "acimsvF")) != -1)
118 		switch(ch) {
119 		case 'a':	/* alternate superblocks */
120 		case 'c':	/* cylinder group info */
121 		case 'i':	/* actual inodes */
122 		case 'm':	/* cylinder group summary */
123 		case 's':	/* superblock */
124 		case 'v':	/* more verbose */
125 			opt_flags |= OPT_FLAG(ch);
126 			break;
127 		case 'F':	/* File (not device) */
128 			Fflag = 1;
129 			break;
130 		case '?':
131 		default:
132 			usage();
133 		}
134 	argc -= optind;
135 	argv += optind;
136 
137 	if ((opt_flags & DFLT_CHECK) == 0)
138 		opt_flags |= DFLT_OPTS;
139 
140 	if (argc < 1)
141 		usage();
142 
143 	for (eval = 0; *argv; ++argv) {
144 		eval |= dumpfs(*argv);
145 	}
146 
147 	exit(eval);
148 }
149 
150 
151 int
152 dumpfs(const char *name)
153 {
154 	static const off_t sblock_try[] = SBLOCKSEARCH;
155 	char device[MAXPATHLEN];
156 	int fd, i;
157 	int rval = 1;
158 
159 	if (Fflag)
160 		fd = open(name, O_RDONLY);
161 	else {
162 		fd = openpartition(name, O_RDONLY, device, sizeof(device));
163 		name = device;
164 	}
165 	if (fd == -1)
166 		goto err;
167 
168 	for (i = 0; ; i++) {
169 		if (sblock_try[i] == -1) {
170 			warnx("%s: could not find superblock, skipped", name);
171 			return 1;
172 		}
173 		if (lseek(fd, sblock_try[i], SEEK_SET) == (off_t)-1)
174 			continue;
175 		if (read(fd, &afs, SBLOCKSIZE) != SBLOCKSIZE)
176 			continue;
177 		switch(afs.fs_magic) {
178 		case FS_UFS2_MAGIC:
179 			is_ufs2 = 1;
180 			break;
181 		case FS_UFS1_MAGIC:
182 			break;
183 		case FS_UFS2_MAGIC_SWAPPED:
184 			is_ufs2 = 1;
185 			needswap = 1;
186 			break;
187 		case FS_UFS1_MAGIC_SWAPPED:
188 			needswap = 1;
189 			break;
190 		default:
191 			continue;
192 		}
193 		fix_superblock(&afs, opostblsave);
194 		if (printold) {
195 			if (sblock_try[i] == SBLOCK_UFS2)
196 				/* This might be an alternate superblock */
197 				continue;
198 		} else {
199 			if (sblock_try[i] != afs.fs_sblockloc)
200 				/* This must be an alternate superblock */
201 				continue;
202 		}
203 		break;
204 	}
205 
206 
207 	dev_bsize = afs.fs_fsize / fsbtodb(&afs, 1);
208 
209 	rval = 0;
210 	printf("file system: %s\n", name);
211 
212 	if (ISOPT(opt_superblock))
213 		rval = print_superblock(&afs, opostblsave, name, fd, sblock_try[i]);
214 	if (rval == 0 && ISOPT(opt_cg_summary))
215 		rval = print_cgsum(name, fd);
216 	if (rval == 0 && ISOPT(opt_alt_super))
217 		rval = print_alt_super(name, fd);
218 	if (rval == 0 && ISOPT(opt_cg_info))
219 		rval = print_cginfo(name, fd);
220 	else if (rval == 0 && ISOPT(opt_inodes))
221 		rval = print_inodes(name, fd, 0, afs.fs_ncg);
222 
223     err:
224 	if (fd != -1)
225 		(void)close(fd);
226 	if (rval)
227 		warn("%s", name);
228 	return rval;
229 }
230 
231 void
232 fix_superblock(struct fs *fs, uint16_t *opostbl)
233 {
234 	if (needswap &&
235 	    (((int32_t)bswap32(fs->fs_old_postblformat) == FS_42POSTBLFMT) ||
236 	     (bswap32(fs->fs_old_postbloff) == offsetof(struct fs, fs_old_postbl_start)))) {
237 		int i;
238 		memcpy(opostbl, &fs->fs_old_postbl_start, 512);
239 		for(i=0;i<256;i++)
240 			opostbl[i] = bswap16(opostbl[i]);
241 	} else if (!needswap &&
242 	   ((fs->fs_old_postblformat == FS_42POSTBLFMT) ||
243 	    (fs->fs_old_postbloff == offsetof(struct fs, fs_old_postbl_start)))) {
244 		memcpy(opostbl, &fs->fs_old_postbl_start, 512);
245 	}
246 
247 	if (needswap)
248 		ffs_sb_swap(fs, fs);
249 
250 	printold = (fs->fs_magic == FS_UFS1_MAGIC &&
251 		    (fs->fs_old_flags & FS_FLAGS_UPDATED) == 0);
252 	if (printold) {
253 		fs->fs_sblockloc = SBLOCK_UFS1;
254 		fs->fs_flags = fs->fs_old_flags;
255 		fs->fs_maxbsize = fs->fs_bsize;
256 		fs->fs_time = fs->fs_old_time;
257 		fs->fs_size = fs->fs_old_size;
258 		fs->fs_dsize = fs->fs_old_dsize;
259 		fs->fs_csaddr = fs->fs_old_csaddr;
260 		fs->fs_cstotal.cs_ndir = fs->fs_old_cstotal.cs_ndir;
261 		fs->fs_cstotal.cs_nbfree = fs->fs_old_cstotal.cs_nbfree;
262 		fs->fs_cstotal.cs_nifree = fs->fs_old_cstotal.cs_nifree;
263 		fs->fs_cstotal.cs_nffree = fs->fs_old_cstotal.cs_nffree;
264 	}
265 
266 	if (printold && fs->fs_old_postblformat == FS_42POSTBLFMT)
267 		fs->fs_old_nrpos = 8;
268 }
269 
270 int
271 print_superblock(struct fs *fs, uint16_t *opostbl,
272     const char *name, int fd, off_t sblock)
273 {
274 	int i, size;
275 	time_t t;
276 	int32_t fsflags;
277 
278 	printf("format\tFFSv%d\n", is_ufs2+1);
279 #if BYTE_ORDER == LITTLE_ENDIAN
280 	if (needswap)
281 #else
282 	if (!needswap)
283 #endif
284 		printf("endian\tbig-endian\n");
285 	else
286 		printf("endian\tlittle-endian\n");
287 	t = fs->fs_time;
288 	if ((sblock != SBLOCK_UFS1) || ISOPT(opt_alt_super))
289 		printf("location %lld\t(-b %lld)\n",
290 		    (long long)sblock, (long long)(sblock/dev_bsize));
291 	printf("magic\t%-8x\ttime\t%s",
292 	    fs->fs_magic, ctime(&t));
293 
294 	if (is_ufs2)
295 		i = 5;
296 	else {
297 		i = 0;
298 		if (fs->fs_old_postblformat != FS_42POSTBLFMT) {
299 			i++;
300 			if (fs->fs_old_inodefmt >= FS_44INODEFMT) {
301 				int max;
302 
303 				i++;
304 				max = fs->fs_maxcontig;
305 				size = fs->fs_contigsumsize;
306 				if ((max < 2 && size == 0)
307 				    || (max > 1 && size >= MIN(max, FS_MAXCONTIG)))
308 					i++;
309 			}
310 			if (fs->fs_old_flags & FS_FLAGS_UPDATED) {
311 				i = 4;
312 			}
313 		}
314 	}
315 	if (!printold || fs->fs_sblockloc != SBLOCK_UFS1 ||
316 	    fs->fs_id[0] || fs->fs_id[1])
317 		printf("superblock location\t%jd\tid\t[ %x %x ]\n",
318 		    (intmax_t)fs->fs_sblockloc, fs->fs_id[0], fs->fs_id[1]);
319 	printf("cylgrp\t%s\tinodes\t%s\tsblock\t%s\tfslevel %d\n",
320 	    i < 1 ? "static" : "dynamic",
321 	    i < 2 ? "4.2/4.3BSD" : i < 5 ? "4.4BSD" : "FFSv2",
322 	    i < 4 ? "FFSv1" : "FFSv2", i);
323 	printf("nbfree\t%lld\tndir\t%lld\tnifree\t%lld\tnffree\t%lld\n",
324 	    (long long)fs->fs_cstotal.cs_nbfree,
325 	    (long long)fs->fs_cstotal.cs_ndir,
326 	    (long long)fs->fs_cstotal.cs_nifree,
327 	    (long long)fs->fs_cstotal.cs_nffree);
328 	if (printold)
329 		printf("ncg\t%d\tncyl\t%d\tsize\t%lld\tblocks\t%lld\n",
330 		    fs->fs_ncg, fs->fs_old_ncyl, (long long)fs->fs_size, (long long)fs->fs_dsize);
331 	else
332 		printf("ncg\t%d\tsize\t%lld\tblocks\t%lld\n",
333 		    fs->fs_ncg, (long long)fs->fs_size, (long long)fs->fs_dsize);
334 	printf("bsize\t%d\tshift\t%d\tmask\t0x%08x\n",
335 	    fs->fs_bsize, fs->fs_bshift, fs->fs_bmask);
336 	printf("fsize\t%d\tshift\t%d\tmask\t0x%08x\n",
337 	    fs->fs_fsize, fs->fs_fshift, fs->fs_fmask);
338 	printf("frag\t%d\tshift\t%d\tfsbtodb\t%d\n",
339 	    fs->fs_frag, fs->fs_fragshift, fs->fs_fsbtodb);
340 	if (printold)
341 		printf("cpg\t%d\t", fs->fs_old_cpg);
342 	printf("bpg\t%d\tfpg\t%d\tipg\t%d\n",
343 	    fs->fs_fpg / fs->fs_frag, fs->fs_fpg, fs->fs_ipg);
344 	printf("minfree\t%d%%\toptim\t%s\tmaxcontig %d\tmaxbpg\t%d\n",
345 	    fs->fs_minfree, fs->fs_optim == FS_OPTSPACE ? "space" : "time",
346 	    fs->fs_maxcontig, fs->fs_maxbpg);
347 	if (printold) {
348 		printf("rotdelay %dms\theadswitch %dus\ttrackseek %dus\trps\t%d\n",
349 		    fs->fs_old_rotdelay, fs->fs_old_headswitch,
350 		    fs->fs_old_trkseek, fs->fs_old_rps);
351 		printf("ntrak\t%d\tnsect\t%d\tnpsect\t%d\tspc\t%d\n",
352 		    fs->fs_spare2, fs->fs_old_nsect, fs->fs_old_npsect,
353 		    fs->fs_old_spc);
354 	}
355 	printf("symlinklen %d\t", fs->fs_maxsymlinklen);
356 	if (printold)
357 		printf("trackskew %d\tinterleave %d\t",
358 		    fs->fs_old_trackskew, fs->fs_old_interleave);
359 	printf("contigsumsize %d\n", fs->fs_contigsumsize);
360 	printf("maxfilesize 0x%016llx\n",
361 	    (unsigned long long)fs->fs_maxfilesize);
362 	if (printold)
363 		printf("nindir\t%d\tinopb\t%d\tnspf\t%d\n", fs->fs_nindir,
364 		    fs->fs_inopb, fs->fs_old_nspf);
365 	else
366 		printf("nindir\t%d\tinopb\t%d\n", fs->fs_nindir, fs->fs_inopb);
367 	if (!printold || (fs->fs_avgfilesize > 0) || (fs->fs_avgfpdir > 0))
368 		printf("avgfilesize %d\tavgfpdir %d\n",
369 		    fs->fs_avgfilesize, fs->fs_avgfpdir);
370 	printf("sblkno\t%d\tcblkno\t%d\tiblkno\t%d\tdblkno\t%d\n",
371 	    fs->fs_sblkno, fs->fs_cblkno, fs->fs_iblkno, fs->fs_dblkno);
372 	printf("sbsize\t%d\tcgsize\t%d", fs->fs_sbsize, fs->fs_cgsize);
373 	if (printold)
374 		printf("\toffset\t%d\tmask\t0x%08x",
375 		    fs->fs_old_cgoffset, fs->fs_old_cgmask);
376 	printf("\ncsaddr\t%lld\tcssize\t%d",
377 	    (long long)fs->fs_csaddr, fs->fs_cssize);
378 	if (printold)
379 		printf("\tshift\t%d\tmask\t0x%08x",
380 		    fs->fs_old_csshift, fs->fs_old_csmask);
381 	printf("\ncgrotor\t%d\tfmod\t%d\tronly\t%d\tclean\t0x%02x\n",
382 	    fs->fs_cgrotor, fs->fs_fmod, fs->fs_ronly, fs->fs_clean);
383 	printf("wapbl version 0x%x\tlocation %u\tflags 0x%x\n",
384 	    fs->fs_journal_version, fs->fs_journal_location,
385 	    fs->fs_journal_flags);
386 	printf("wapbl loc0 %" PRIu64 "\tloc1 %" PRIu64,
387 	    fs->fs_journallocs[0], fs->fs_journallocs[1]);
388 	printf("\tloc2 %" PRIu64 "\tloc3 %" PRIu64 "\n",
389 	    fs->fs_journallocs[2], fs->fs_journallocs[3]);
390 	printf("flags\t");
391 	if (fs->fs_flags == 0)
392 		printf("none");
393 	if (fs->fs_flags & FS_UNCLEAN)
394 		printf("unclean ");
395 	if (fs->fs_flags & FS_DOSOFTDEP)
396 		printf("soft-updates ");
397 	if (fs->fs_flags & FS_NEEDSFSCK)
398 		printf("needs fsck run ");
399 	if (fs->fs_flags & FS_INDEXDIRS)
400 		printf("indexed directories ");
401 	if (fs->fs_flags & FS_ACLS)
402 		printf("acls ");
403 	if (fs->fs_flags & FS_MULTILABEL)
404 		printf("multilabel ");
405 	if (fs->fs_flags & FS_FLAGS_UPDATED)
406 		printf("fs_flags expanded ");
407 	if (fs->fs_flags & FS_DOWAPBL)
408 		printf("wapbl ");
409 	fsflags = fs->fs_flags & ~(FS_UNCLEAN | FS_DOSOFTDEP | FS_NEEDSFSCK |
410 			FS_INDEXDIRS | FS_ACLS | FS_MULTILABEL |
411 			FS_FLAGS_UPDATED | FS_DOWAPBL);
412 	if (fsflags != 0)
413 		printf("unknown flags (%#x)", fsflags);
414 	printf("\nfsmnt\t%s\n", fs->fs_fsmnt);
415 	if (!printold)
416 		printf("volname\t%s\tswuid\t%ju\n",
417 		    fs->fs_volname, (uintmax_t)fs->fs_swuid);
418 	if (printold) {
419 		if (fs->fs_old_cpc != 0)
420 			printf("blocks available in each of %d rotational "
421 			       "positions\n", fs->fs_old_nrpos);
422 		else
423 			printf("(no rotational position table)\n\n");
424 		if (ISOPT(opt_verbose)) {
425 			int c, j, k;
426 			for (c = 0; c < fs->fs_old_cpc; c++) {
427 				printf("cylinder number %d:", c);
428 				for (i = 0; i < fs->fs_old_nrpos; i++) {
429 					if (old_fs_postbl(&afs, c, opostbl)[i] == -1)
430 						continue;
431 					printf("\n   position %d:\t", i);
432 					for (j = old_fs_postbl(&afs, c, opostbl)[i], k = 1; ;
433 							 j += old_fs_rotbl(&afs)[j], k++) {
434 						printf("%5d", j);
435 						if (k % 12 == 0)
436 							printf("\n\t\t");
437 						if (old_fs_rotbl(&afs)[j] == 0)
438 							break;
439 					}
440 				}
441 				printf("\n");
442 			}
443 		}
444 	}
445 
446 	return 0;
447 }
448 
449 int
450 print_cgsum(const char *name, int fd)
451 {
452 	struct csum *ccsp;
453 	int i, j, size;
454 
455 	afs.fs_csp = calloc(1, afs.fs_cssize);
456 	for (i = 0, j = 0; i < afs.fs_cssize; i += afs.fs_bsize, j++) {
457 		size = afs.fs_cssize - i < afs.fs_bsize ?
458 		    afs.fs_cssize - i : afs.fs_bsize;
459 		ccsp = (struct csum *)((char *)afs.fs_csp + i);
460 		if (lseek(fd,
461 		    (off_t)(fsbtodb(&afs, (afs.fs_csaddr + j * afs.fs_frag))) *
462 		    dev_bsize, SEEK_SET) == (off_t)-1)
463 			return 1;
464 		if (read(fd, ccsp, size) != size)
465 			return 1;
466 		if (needswap)
467 			ffs_csum_swap(ccsp, ccsp, size);
468 	}
469 
470 	printf("cs[].cs_(nbfree,ndir,nifree,nffree):\n\t");
471 	for (i = 0; i < afs.fs_ncg; i++) {
472 		struct csum *cs = &afs.fs_cs(&afs, i);
473 		if (i && i % 4 == 0)
474 			printf("\n\t");
475 		printf("(%d,%d,%d,%d) ",
476 		    cs->cs_nbfree, cs->cs_ndir, cs->cs_nifree, cs->cs_nffree);
477 	}
478 	printf("\n");
479 	if (printold && (afs.fs_old_ncyl % afs.fs_old_cpg)) {
480 		printf("cylinders in last group %d\n",
481 		    i = afs.fs_old_ncyl % afs.fs_old_cpg);
482 		printf("blocks in last group %d\n",
483 		    i * afs.fs_old_spc / (afs.fs_old_nspf << afs.fs_fragshift));
484 	}
485 	free(afs.fs_csp);
486 	afs.fs_csp = NULL;
487 
488 	return 0;
489 }
490 
491 int
492 print_alt_super(const char *name, int fd)
493 {
494 	union fsun alt;
495 	int i;
496 	off_t loc;
497 	uint16_t alt_opostblsave[32*8];
498 	int save_printold;
499 
500 	for (i = 0; i < afs.fs_ncg; i++) {
501 		loc = (off_t)(fsbtodb(&afs, cgsblock(&afs, i))) * dev_bsize;
502 		printf("\nalternate %d\n", i);
503 		if (pread(fd, &alt, sizeof alt, loc) != sizeof alt) {
504 			warnx("%s: error reading alt %d", name, i);
505 			return (1);
506 		}
507 		save_printold = printold;
508 		fix_superblock(&alt.fs, alt_opostblsave);
509 		if (print_superblock(&alt.fs, alt_opostblsave, name, fd, loc)) {
510 			printold = save_printold;
511 			return 1;
512 		}
513 		printold = save_printold;
514 	}
515 	return 0;
516 }
517 
518 int
519 print_cginfo(const char *name, int fd)
520 {
521 	int i;
522 
523 	printf("\n");
524 	for (i = 0; i < afs.fs_ncg; i++) {
525 		printf("\n");
526 		if (dumpcg(name, fd, i))
527 			return 1;
528 		if (ISOPT(opt_inodes) && print_inodes(name, fd, i, 1))
529 			return 1;
530 	}
531 	return 0;
532 }
533 
534 int
535 print_inodes(const char *name, int fd, int c, int n)
536 {
537 	void *ino_buf = malloc(afs.fs_bsize);
538 	void (*print_inode)(int, int, void *);
539 	int i, inum;
540 
541 	if (ino_buf == 0)
542 		return 1;
543 
544 	print_inode = is_ufs2 ? print_ufs2_inode : print_ufs1_inode;
545 
546 	for (inum = c * afs.fs_ipg ; inum < (c+n) * afs.fs_ipg; inum += afs.fs_inopb) {
547 		if (pread(fd, ino_buf, afs.fs_bsize,
548 		    ino_to_fsba(&afs, inum) * afs.fs_fsize) != afs.fs_bsize) {
549 			free(ino_buf);
550 			return 1;
551 		}
552 		for (i = 0; i < afs.fs_inopb; i++)
553 			print_inode(inum + i, i, ino_buf);
554 	}
555 
556 	free(ino_buf);
557 	return 0;
558 }
559 
560 int
561 dumpcg(const char *name, int fd, int c)
562 {
563 	off_t cur;
564 	int i, j;
565 	time_t t;
566 
567 	printf("cg %d:\n", c);
568 	if ((cur = lseek(fd, (off_t)(fsbtodb(&afs, cgtod(&afs, c))) * dev_bsize,
569 	    SEEK_SET)) == (off_t)-1)
570 		return (1);
571 	if (read(fd, &acg, afs.fs_bsize) != afs.fs_bsize) {
572 		warnx("%s: error reading cg", name);
573 		return (1);
574 	}
575 	if (needswap)
576 		ffs_cg_swap(&acg, &acg, &afs);
577 	if (printold)
578 		t = acg.cg_old_time;
579 	else
580 		t = acg.cg_time;
581 	printf("magic\t%x\ttell\t%llx\ttime\t%s",
582 	    afs.fs_old_postblformat == FS_42POSTBLFMT ?
583 	    ((struct ocg *)&acg)->cg_magic : acg.cg_magic,
584 	    (long long)cur, ctime(&t));
585 	if (printold)
586 		printf("cgx\t%d\tncyl\t%d\tniblk\t%d\tndblk\t%d\n",
587 		    acg.cg_cgx, acg.cg_old_ncyl, acg.cg_old_niblk,
588 		    acg.cg_ndblk);
589 	else
590 		printf("cgx\t%d\tniblk\t%d\tndblk\t%d\n",
591 		    acg.cg_cgx, acg.cg_niblk, acg.cg_ndblk);
592 	printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n",
593 	    acg.cg_cs.cs_nbfree, acg.cg_cs.cs_ndir,
594 	    acg.cg_cs.cs_nifree, acg.cg_cs.cs_nffree);
595 	printf("rotor\t%d\tirotor\t%d\tfrotor\t%d\nfrsum",
596 	    acg.cg_rotor, acg.cg_irotor, acg.cg_frotor);
597 	for (i = 1, j = 0; i < afs.fs_frag; i++) {
598 		printf("\t%d", acg.cg_frsum[i]);
599 		j += i * acg.cg_frsum[i];
600 	}
601 	printf("\nsum of frsum: %d", j);
602 	if (afs.fs_contigsumsize > 0) {
603 		for (i = 1; i < afs.fs_contigsumsize; i++) {
604 			if ((i - 1) % 8 == 0)
605 				printf("\nclusters %d-%d:", i,
606 				    afs.fs_contigsumsize - 1 < i + 7 ?
607 				    afs.fs_contigsumsize - 1 : i + 7);
608 			printf("\t%d", cg_clustersum(&acg, 0)[i]);
609 		}
610 		printf("\nclusters size %d and over: %d\n",
611 		    afs.fs_contigsumsize,
612 		    cg_clustersum(&acg, 0)[afs.fs_contigsumsize]);
613 		printf("clusters free:\t");
614 		pbits(0, cg_clustersfree(&acg, 0), acg.cg_nclusterblks);
615 	} else
616 		printf("\n");
617 	printf("iused:\t");
618 	pbits(0 * c * afs.fs_ipg, cg_inosused(&acg, 0), afs.fs_ipg);
619 	printf("free:\t");
620 	pbits(0, cg_blksfree(&acg, 0), afs.fs_fpg);
621 	if (printold && ISOPT(opt_verbose)) {
622 		printf("b:\n");
623 		for (i = 0; i < afs.fs_old_cpg; i++) {
624 			if (old_cg_blktot(&acg, 0)[i] == 0)
625 				continue;
626 			printf("   c%d:\t(%d)\t", i, old_cg_blktot(&acg, 0)[i]);
627 			for (j = 0; j < afs.fs_old_nrpos; j++) {
628 				if (afs.fs_old_cpc > 0 &&
629 						old_fs_postbl(&afs, i % afs.fs_old_cpc, opostblsave)[j] == -1)
630 					continue;
631 				printf(" %d", old_cg_blks(&afs, &acg, i, 0)[j]);
632 			}
633 			printf("\n");
634 		}
635 	}
636 	return (0);
637 }
638 
639 void
640 print_ufs1_inode(int inum, int i_off, void *ibuf)
641 {
642 	struct ufs1_dinode *i = ibuf;
643 
644 	i += i_off;
645 
646 	if (needswap)
647 		ffs_dinode1_swap(i,i);
648 
649 	if (afs.fs_old_inodefmt < FS_44INODEFMT) {
650 		i->di_uid = i->di_ouid;
651 		i->di_gid = i->di_ogid;
652 	}
653 
654 	if (inum % afs.fs_ipg == 0)
655 		printf("   inode:   mode  nlink                 size"
656 		    "      ctime.nsec         flags     blocks"
657 		    " generation      uid        gid\n");
658 	if (i->di_mode == 0 && i->di_nlink == 0 && !ISOPT(opt_verbose))
659 		return;
660 	printf("%8u: %6o %6d %20" PRIu64 " %10u.%09u %8x %10u %8x %10u %10u\n",
661 		inum, i->di_mode, i->di_nlink, i->di_size,
662 		i->di_ctime, i->di_ctimensec, i->di_flags, i->di_blocks,
663 		i->di_gen, i->di_uid, i->di_gid);
664 }
665 
666 void
667 print_ufs2_inode(int inum, int i_off, void *ibuf)
668 {
669 	struct ufs2_dinode *i = ibuf;
670 
671 	i += i_off;
672 
673 	if (needswap)
674 		ffs_dinode2_swap(i,i);
675 
676 	if (inum % afs.fs_ipg == 0)
677 		printf("   inode:   mode  nlink                 size"
678 		    "      ctime.nsec         flags     blocks"
679 		    " generation      uid        gid\n");
680 
681 	if (i->di_mode == 0 && i->di_nlink == 0 && !ISOPT(opt_verbose))
682 		return;
683 
684 	printf("%8u: %6o %6d %20" PRIu64 " %10" PRIu64 ".%09u %8x %10" PRIu64 " %8x %10u %10u\n",
685 		inum, i->di_mode, i->di_nlink, i->di_size,
686 		i->di_ctime, i->di_ctimensec, i->di_flags, i->di_blocks,
687 		i->di_gen, i->di_uid, i->di_gid);
688 }
689 
690 
691 void
692 pbits(int offset, void *vp, int max)
693 {
694 	int i;
695 	char *p;
696 	int count, j;
697 
698 	for (count = i = 0, p = vp; i < max; i++)
699 		if (isset(p, i)) {
700 			if (count)
701 				printf(",%s", count % 6 ? " " : "\n\t");
702 			count++;
703 			printf("%d", offset + i);
704 			j = i;
705 			while ((i+1)<max && isset(p, i+1))
706 				i++;
707 			if (i != j)
708 				printf("-%d", offset + i);
709 		}
710 	printf("\n");
711 }
712 
713 void
714 usage(void)
715 {
716 
717 	(void)fprintf(stderr, "usage: dumpfs [-acFimsv] filesys | device [...]\n");
718 	exit(1);
719 }
720 
721 int
722 openpartition(const char *name, int flags, char *device, size_t devicelen)
723 {
724 	char		rawspec[MAXPATHLEN], *p;
725 	struct fstab	*fs;
726 	int		fd, oerrno;
727 
728 	fs = getfsfile(name);
729 	if (fs) {
730 		if ((p = strrchr(fs->fs_spec, '/')) != NULL) {
731 			snprintf(rawspec, sizeof(rawspec), "%.*s/r%s",
732 			    (int)(p - fs->fs_spec), fs->fs_spec, p + 1);
733 			name = rawspec;
734 		} else
735 			name = fs->fs_spec;
736 	}
737 	fd = opendisk(name, flags, device, devicelen, 0);
738 	if (fd == -1 && errno == ENOENT) {
739 		oerrno = errno;
740 		strlcpy(device, name, devicelen);
741 		errno = oerrno;
742 	}
743 	return (fd);
744 }
745