GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: sbin/fsdb/fsdb.c Lines: 0 408 0.0 %
Date: 2017-11-13 Branches: 0 227 0.0 %

Line Branch Exec Source
1
/*	$OpenBSD: fsdb.c,v 1.31 2016/09/09 15:37:14 tb Exp $	*/
2
/*	$NetBSD: fsdb.c,v 1.7 1997/01/11 06:50:53 lukem Exp $	*/
3
4
/*-
5
 * Copyright (c) 1996 The NetBSD Foundation, Inc.
6
 * All rights reserved.
7
 *
8
 * This code is derived from software contributed to The NetBSD Foundation
9
 * by John T. Kohl.
10
 *
11
 * Redistribution and use in source and binary forms, with or without
12
 * modification, are permitted provided that the following conditions
13
 * are met:
14
 * 1. Redistributions of source code must retain the above copyright
15
 *    notice, this list of conditions and the following disclaimer.
16
 * 2. Redistributions in binary form must reproduce the above copyright
17
 *    notice, this list of conditions and the following disclaimer in the
18
 *    documentation and/or other materials provided with the distribution.
19
 *
20
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
24
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30
 * POSSIBILITY OF SUCH DAMAGE.
31
 */
32
33
#include <sys/stat.h>
34
#include <sys/time.h>
35
#include <sys/mount.h>
36
#include <ctype.h>
37
#include <err.h>
38
#include <fcntl.h>
39
#include <grp.h>
40
#include <histedit.h>
41
#include <limits.h>
42
#include <pwd.h>
43
#include <stdio.h>
44
#include <stdlib.h>
45
#include <string.h>
46
#include <unistd.h>
47
48
#include <ufs/ufs/dinode.h>
49
#include <ufs/ufs/dir.h>
50
#include <ufs/ffs/fs.h>
51
52
#include "fsdb.h"
53
#include "fsck.h"
54
#include "extern.h"
55
56
extern char *__progname;	/* from crt0.o */
57
58
int main(int, char *[]);
59
static void usage(void);
60
static int cmdloop(void);
61
static int helpfn(int, char *[]);
62
static char *prompt(EditLine *);
63
static int scannames(struct inodesc *);
64
static int dolookup(char *);
65
static int chinumfunc(struct inodesc *);
66
static int chnamefunc(struct inodesc *);
67
static int dotime(char *, time_t *, int32_t *);
68
69
int returntosingle = 0;
70
union dinode *curinode;
71
ino_t curinum;
72
73
static void
74
usage(void)
75
{
76
	fprintf(stderr, "usage: %s [-d] -f fsname\n", __progname);
77
	exit(1);
78
}
79
80
/*
81
 * We suck in lots of fsck code, and just pick & choose the stuff we want.
82
 *
83
 * fsreadfd is set up to read from the file system, fswritefd to write to
84
 * the file system.
85
 */
86
int
87
main(int argc, char *argv[])
88
{
89
	int ch, rval;
90
	char *fsys = NULL;
91
92
	while (-1 != (ch = getopt(argc, argv, "f:d"))) {
93
		switch (ch) {
94
		case 'f':
95
			fsys = optarg;
96
			break;
97
		case 'd':
98
			debug++;
99
			break;
100
		default:
101
			usage();
102
		}
103
	}
104
	if (fsys == NULL)
105
		usage();
106
	if (!setup(fsys, 1))
107
		errx(1, "cannot set up file system `%s'", fsys);
108
	printf("Editing file system `%s'\nLast Mounted on %s\n", fsys,
109
	    sblock.fs_fsmnt);
110
	rval = cmdloop();
111
	sblock.fs_clean = 0;		/* mark it dirty */
112
	sbdirty();
113
	ckfini(0);
114
	printf("*** FILE SYSTEM MARKED DIRTY\n");
115
	printf("*** BE SURE TO RUN FSCK TO CLEAN UP ANY DAMAGE\n");
116
	printf("*** IF IT WAS MOUNTED, RE-MOUNT WITH -u -o reload\n");
117
	exit(rval);
118
}
119
120
#define CMDFUNC(func) static int func(int argc, char *argv[])
121
#define CMDFUNCSTART(func) static int func(int argc, char *argv[])
122
123
CMDFUNC(helpfn);
124
CMDFUNC(focus);				/* focus on inode */
125
CMDFUNC(active);			/* print active inode */
126
CMDFUNC(focusname);			/* focus by name */
127
CMDFUNC(zapi);				/* clear inode */
128
CMDFUNC(uplink);			/* incr link */
129
CMDFUNC(downlink);			/* decr link */
130
CMDFUNC(linkcount);			/* set link count */
131
CMDFUNC(quit);				/* quit */
132
CMDFUNC(ls);				/* list directory */
133
CMDFUNC(rm);				/* remove name */
134
CMDFUNC(ln);				/* add name */
135
CMDFUNC(newtype);			/* change type */
136
CMDFUNC(chmode);			/* change mode */
137
CMDFUNC(chlen);				/* change length */
138
CMDFUNC(chaflags);			/* change flags */
139
CMDFUNC(chgen);				/* change generation */
140
CMDFUNC(chowner);			/* change owner */
141
CMDFUNC(chgroup);			/* Change group */
142
CMDFUNC(back);				/* pop back to last ino */
143
CMDFUNC(chmtime);			/* Change mtime */
144
CMDFUNC(chctime);			/* Change ctime */
145
CMDFUNC(chatime);			/* Change atime */
146
CMDFUNC(chinum);			/* Change inode # of dirent */
147
CMDFUNC(chname);			/* Change dirname of dirent */
148
149
static struct cmdtable cmds[] = {
150
	{ "help", "Print out help", 1, 1, helpfn },
151
	{ "?", "Print out help", 1, 1, helpfn },
152
	{ "inode", "Set active inode to INUM", 2, 2, focus },
153
	{ "clri", "Clear inode INUM", 2, 2, zapi },
154
	{ "lookup", "Set active inode by looking up NAME", 2, 2, focusname },
155
	{ "cd", "Set active inode by looking up NAME", 2, 2, focusname },
156
	{ "back", "Go to previous active inode", 1, 1, back },
157
	{ "active", "Print active inode", 1, 1, active },
158
	{ "print", "Print active inode", 1, 1, active },
159
	{ "uplink", "Increment link count", 1, 1, uplink },
160
	{ "downlink", "Decrement link count", 1, 1, downlink },
161
	{ "linkcount", "Set link count to COUNT", 2, 2, linkcount },
162
	{ "ls", "List current inode as directory", 1, 1, ls },
163
	{ "rm", "Remove NAME from current inode directory", 2, 2, rm },
164
	{ "del", "Remove NAME from current inode directory", 2, 2, rm },
165
	{ "ln", "Hardlink INO into current inode directory as NAME", 3, 3, ln },
166
	{ "chinum", "Change dir entry number INDEX to INUM", 3, 3, chinum },
167
	{ "chname", "Change dir entry number INDEX to NAME", 3, 3, chname },
168
	{ "chtype", "Change type of current inode to TYPE", 2, 2, newtype },
169
	{ "chmod", "Change mode of current inode to MODE", 2, 2, chmode },
170
	{ "chown", "Change owner of current inode to OWNER", 2, 2, chowner },
171
	{ "chlen", "Change length of current inode to LENGTH", 2, 2, chlen },
172
	{ "chgrp", "Change group of current inode to GROUP", 2, 2, chgroup },
173
	{ "chflags", "Change flags of current inode to FLAGS", 2, 2, chaflags },
174
	{ "chgen", "Change generation number of current inode to GEN", 2, 2, chgen },
175
	{ "mtime", "Change mtime of current inode to MTIME", 2, 2, chmtime },
176
	{ "ctime", "Change ctime of current inode to CTIME", 2, 2, chctime },
177
	{ "atime", "Change atime of current inode to ATIME", 2, 2, chatime },
178
	{ "quit", "Exit", 1, 1, quit },
179
	{ "q", "Exit", 1, 1, quit },
180
	{ "exit", "Exit", 1, 1, quit },
181
	{ NULL, 0, 0, 0 },
182
};
183
184
static int
185
helpfn(int argc, char *argv[])
186
{
187
	struct cmdtable *cmdtp;
188
189
	printf("Commands are:\n%-10s %5s %5s   %s\n",
190
	    "command", "min argc", "max argc", "what");
191
192
	for (cmdtp = cmds; cmdtp->cmd; cmdtp++)
193
		printf("%-10s %5u %5u   %s\n",
194
		    cmdtp->cmd, cmdtp->minargc, cmdtp->maxargc, cmdtp->helptxt);
195
	return 0;
196
}
197
198
static char *
199
prompt(EditLine *el)
200
{
201
	static char pstring[64];
202
203
	snprintf(pstring, sizeof(pstring), "fsdb (inum: %llu)> ",
204
	    (unsigned long long)curinum);
205
	return pstring;
206
}
207
208
209
static int
210
cmdloop(void)
211
{
212
	char *line = NULL;
213
	const char *elline;
214
	int cmd_argc, rval = 0, known;
215
#define scratch known
216
	char **cmd_argv;
217
	struct cmdtable *cmdp;
218
	History *hist;
219
	EditLine *elptr;
220
	HistEvent hev;
221
222
	curinode = ginode(ROOTINO);
223
	curinum = ROOTINO;
224
	printactive();
225
226
	hist = history_init();
227
	history(hist, &hev, H_SETSIZE, 100);	/* 100 elt history buffer */
228
229
	elptr = el_init(__progname, stdin, stdout, stderr);
230
	el_set(elptr, EL_EDITOR, "emacs");
231
	el_set(elptr, EL_PROMPT, prompt);
232
	el_set(elptr, EL_HIST, history, hist);
233
	el_source(elptr, NULL);
234
235
	while ((elline = el_gets(elptr, &scratch)) != NULL && scratch != 0) {
236
		if (debug)
237
			printf("command `%s'\n", line);
238
239
		history(hist, &hev, H_ENTER, elline);
240
241
		line = strdup(elline);
242
		if (line == NULL)
243
			errx(1, "out of memory");
244
		cmd_argv = crack(line, &cmd_argc);
245
		if (cmd_argc) {
246
			/*
247
			 * el_parse returns -1 to signal that it's not been handled
248
			 * internally.
249
			 */
250
			if (el_parse(elptr, cmd_argc, (const char **)cmd_argv) != -1)
251
				continue;
252
			known = 0;
253
			for (cmdp = cmds; cmdp->cmd; cmdp++) {
254
				if (!strcmp(cmdp->cmd, cmd_argv[0])) {
255
					if (cmd_argc >= cmdp->minargc &&
256
					    cmd_argc <= cmdp->maxargc)
257
						rval = (*cmdp->handler)(cmd_argc,
258
						    cmd_argv);
259
					else
260
						rval = argcount(cmdp,
261
						    cmd_argc, cmd_argv);
262
					known = 1;
263
					break;
264
				}
265
			}
266
			if (!known) {
267
				warnx("unknown command `%s'", cmd_argv[0]);
268
				rval = 1;
269
			}
270
		} else
271
			rval = 0;
272
		free(line);
273
		if (rval < 0)
274
			return rval;
275
		if (rval)
276
			warnx("rval was %d", rval);
277
	}
278
	el_end(elptr);
279
	history_end(hist);
280
	return rval;
281
}
282
283
static ino_t ocurrent;
284
285
#define GETINUM(ac,inum)    inum = strtoull(argv[ac], &cp, 0); \
286
	if (inum < ROOTINO || inum > maxino || cp == argv[ac] || *cp != '\0' ) { \
287
		printf("inode %llu out of range; range is [%llu,%llu]\n", \
288
		    (unsigned long long)inum, (unsigned long long)ROOTINO, \
289
		    (unsigned long long)maxino); \
290
		return 1; \
291
	}
292
293
/*
294
 * Focus on given inode number
295
 */
296
CMDFUNCSTART(focus)
297
{
298
	ino_t inum;
299
	char *cp;
300
301
	GETINUM(1,inum);
302
	curinode = ginode(inum);
303
	ocurrent = curinum;
304
	curinum = inum;
305
	printactive();
306
	return 0;
307
}
308
309
CMDFUNCSTART(back)
310
{
311
	curinum = ocurrent;
312
	curinode = ginode(curinum);
313
	printactive();
314
	return 0;
315
}
316
317
CMDFUNCSTART(zapi)
318
{
319
	ino_t inum;
320
	union dinode *dp;
321
	char *cp;
322
323
	GETINUM(1,inum);
324
	dp = ginode(inum);
325
	clearinode(dp);
326
	inodirty();
327
	if (curinode)			/* re-set after potential change */
328
		curinode = ginode(curinum);
329
	return 0;
330
}
331
332
CMDFUNCSTART(active)
333
{
334
	printactive();
335
	return 0;
336
}
337
338
339
CMDFUNCSTART(quit)
340
{
341
	return -1;
342
}
343
344
CMDFUNCSTART(uplink)
345
{
346
	if (!checkactive())
347
		return 1;
348
	DIP_SET(curinode, di_nlink, DIP(curinode, di_nlink) + 1);
349
	printf("inode %llu link count now %d\n",
350
	    (unsigned long long)curinum, DIP(curinode, di_nlink));
351
	inodirty();
352
	return 0;
353
}
354
355
CMDFUNCSTART(downlink)
356
{
357
	if (!checkactive())
358
		return 1;
359
	DIP_SET(curinode, di_nlink, DIP(curinode, di_nlink) - 1);
360
	printf("inode %llu link count now %d\n",
361
	    (unsigned long long)curinum, DIP(curinode, di_nlink));
362
	inodirty();
363
	return 0;
364
}
365
366
static const char *typename[] = {
367
	"unknown",
368
	"fifo",
369
	"char special",
370
	"unregistered #3",
371
	"directory",
372
	"unregistered #5",
373
	"blk special",
374
	"unregistered #7",
375
	"regular",
376
	"unregistered #9",
377
	"symlink",
378
	"unregistered #11",
379
	"socket",
380
	"unregistered #13",
381
	"whiteout",
382
};
383
384
static int slot;
385
386
static int
387
scannames(struct inodesc *idesc)
388
{
389
	struct direct *dirp = idesc->id_dirp;
390
391
	printf("slot %d ino %llu reclen %d: %s, `%.*s'\n",
392
	    slot++, (unsigned long long)dirp->d_ino, dirp->d_reclen,
393
	    typename[dirp->d_type], dirp->d_namlen, dirp->d_name);
394
	return (KEEPON);
395
}
396
397
CMDFUNCSTART(ls)
398
{
399
	struct inodesc idesc;
400
	checkactivedir();			/* let it go on anyway */
401
402
	slot = 0;
403
	idesc.id_number = curinum;
404
	idesc.id_func = scannames;
405
	idesc.id_type = DATA;
406
	idesc.id_fix = IGNORE;
407
	ckinode(curinode, &idesc);
408
	curinode = ginode(curinum);
409
410
	return 0;
411
}
412
413
static int
414
dolookup(char *name)
415
{
416
	struct inodesc idesc;
417
418
	if (!checkactivedir())
419
		return 0;
420
	idesc.id_number = curinum;
421
	idesc.id_func = findino;
422
	idesc.id_name = name;
423
	idesc.id_type = DATA;
424
	idesc.id_fix = IGNORE;
425
	if (ckinode(curinode, &idesc) & FOUND) {
426
		curinum = idesc.id_parent;
427
		curinode = ginode(curinum);
428
		printactive();
429
		return 1;
430
	} else {
431
		warnx("name `%s' not found in current inode directory", name);
432
		return 0;
433
	}
434
}
435
436
CMDFUNCSTART(focusname)
437
{
438
	char *p, *val;
439
440
	if (!checkactive())
441
		return 1;
442
443
	ocurrent = curinum;
444
445
	if (argv[1][0] == '/') {
446
		curinum = ROOTINO;
447
		curinode = ginode(ROOTINO);
448
	} else {
449
		if (!checkactivedir())
450
		    return 1;
451
	}
452
	for (p = argv[1]; p != NULL;) {
453
		while ((val = strsep(&p, "/")) != NULL && *val == '\0')
454
			continue;
455
		if (val) {
456
			printf("component `%s': ", val);
457
			fflush(stdout);
458
			if (!dolookup(val)) {
459
				curinode = ginode(curinum);
460
				return(1);
461
			}
462
		}
463
	}
464
	return 0;
465
}
466
467
CMDFUNCSTART(ln)
468
{
469
	ino_t inum;
470
	int rval;
471
	char *cp;
472
473
	GETINUM(1,inum);
474
475
	if (!checkactivedir())
476
		return 1;
477
	rval = makeentry(curinum, inum, argv[2]);
478
	if (rval)
479
		printf("Ino %llu entered as `%s'\n",
480
		    (unsigned long long)inum, argv[2]);
481
	else
482
		printf("could not enter name? weird.\n");
483
	curinode = ginode(curinum);
484
	return rval;
485
}
486
487
CMDFUNCSTART(rm)
488
{
489
	int rval;
490
491
	if (!checkactivedir())
492
		return 1;
493
	rval = changeino(curinum, argv[1], 0);
494
	if (rval & ALTERED) {
495
		printf("Name `%s' removed\n", argv[1]);
496
		return 0;
497
	} else {
498
		printf("could not remove name? weird.\n");
499
		return 1;
500
	}
501
}
502
503
static long slotcount, desired;
504
505
static int
506
chinumfunc(struct inodesc *idesc)
507
{
508
	struct direct *dirp = idesc->id_dirp;
509
510
	if (slotcount++ == desired) {
511
	    dirp->d_ino = idesc->id_parent;
512
	    return STOP|ALTERED|FOUND;
513
	}
514
	return KEEPON;
515
}
516
517
CMDFUNCSTART(chinum)
518
{
519
	char *cp;
520
	ino_t inum;
521
	struct inodesc idesc;
522
523
	slotcount = 0;
524
	if (!checkactivedir())
525
		return 1;
526
	GETINUM(2,inum);
527
528
	desired = strtol(argv[1], &cp, 0);
529
	if (cp == argv[1] || *cp != '\0' || desired < 0) {
530
		printf("invalid slot number `%s'\n", argv[1]);
531
		return 1;
532
	}
533
534
	idesc.id_number = curinum;
535
	idesc.id_func = chinumfunc;
536
	idesc.id_fix = IGNORE;
537
	idesc.id_type = DATA;
538
	idesc.id_parent = inum;		/* XXX convenient hiding place */
539
540
	if (ckinode(curinode, &idesc) & FOUND)
541
		return 0;
542
	else {
543
		warnx("no %sth slot in current directory", argv[1]);
544
		return 1;
545
	}
546
}
547
548
static int
549
chnamefunc(struct inodesc *idesc)
550
{
551
	struct direct *dirp = idesc->id_dirp;
552
	struct direct testdir;
553
554
	if (slotcount++ == desired) {
555
		/* will name fit? */
556
		testdir.d_namlen = strlen(idesc->id_name);
557
		if (DIRSIZ(NEWDIRFMT, &testdir) <= dirp->d_reclen) {
558
			dirp->d_namlen = testdir.d_namlen;
559
			strlcpy(dirp->d_name, idesc->id_name, sizeof dirp->d_name);
560
			return STOP|ALTERED|FOUND;
561
		} else
562
			return STOP|FOUND;	/* won't fit, so give up */
563
	}
564
	return KEEPON;
565
}
566
567
CMDFUNCSTART(chname)
568
{
569
	int rval;
570
	char *cp;
571
	struct inodesc idesc;
572
573
	slotcount = 0;
574
	if (!checkactivedir())
575
		return 1;
576
577
	desired = strtoul(argv[1], &cp, 0);
578
	if (cp == argv[1] || *cp != '\0') {
579
		printf("invalid slot number `%s'\n", argv[1]);
580
		return 1;
581
	}
582
583
	idesc.id_number = curinum;
584
	idesc.id_func = chnamefunc;
585
	idesc.id_fix = IGNORE;
586
	idesc.id_type = DATA;
587
	idesc.id_name = argv[2];
588
589
	rval = ckinode(curinode, &idesc);
590
	if ((rval & (FOUND|ALTERED)) == (FOUND|ALTERED))
591
		return 0;
592
	else if (rval & FOUND) {
593
		warnx("new name `%s' does not fit in slot %s", argv[2], argv[1]);
594
		return 1;
595
	} else {
596
		warnx("no %sth slot in current directory", argv[1]);
597
		return 1;
598
	}
599
}
600
601
static struct typemap {
602
	const char *typename;
603
	int typebits;
604
} typenamemap[]  = {
605
	{"file", IFREG},
606
	{"dir", IFDIR},
607
	{"socket", IFSOCK},
608
	{"fifo", IFIFO},
609
};
610
611
CMDFUNCSTART(newtype)
612
{
613
	int type;
614
	struct typemap *tp;
615
616
	if (!checkactive())
617
		return 1;
618
	type = DIP(curinode, di_mode) & IFMT;
619
	for (tp = typenamemap;
620
	    tp < &typenamemap[sizeof(typenamemap)/sizeof(*typenamemap)];
621
	    tp++) {
622
		if (!strcmp(argv[1], tp->typename)) {
623
			printf("setting type to %s\n", tp->typename);
624
			type = tp->typebits;
625
			break;
626
		}
627
	}
628
	if (tp == &typenamemap[sizeof(typenamemap)/sizeof(*typenamemap)]) {
629
		warnx("type `%s' not known", argv[1]);
630
		warnx("try one of `file', `dir', `socket', `fifo'");
631
		return 1;
632
	}
633
	DIP_SET(curinode, di_mode, DIP(curinode, di_mode) & ~IFMT);
634
	DIP_SET(curinode, di_mode, DIP(curinode, di_mode) | type);
635
	inodirty();
636
	printactive();
637
	return 0;
638
}
639
640
CMDFUNCSTART(chmode)
641
{
642
	int rval = 1;
643
	long modebits;
644
	char *cp;
645
646
	if (!checkactive())
647
		return 1;
648
649
	modebits = strtol(argv[1], &cp, 8);
650
	if (cp == argv[1] || *cp != '\0' ) {
651
		warnx("bad modebits `%s'", argv[1]);
652
		return 1;
653
	}
654
655
	DIP_SET(curinode, di_mode, DIP(curinode, di_mode) & ~07777);
656
	DIP_SET(curinode, di_mode, DIP(curinode, di_mode) | modebits);
657
	inodirty();
658
	printactive();
659
	return rval;
660
}
661
662
CMDFUNCSTART(chlen)
663
{
664
	int rval = 1;
665
	long len;
666
	char *cp;
667
668
	if (!checkactive())
669
		return 1;
670
671
	len = strtol(argv[1], &cp, 0);
672
	if (cp == argv[1] || *cp != '\0' || len < 0) {
673
		warnx("bad length '%s'", argv[1]);
674
		return 1;
675
	}
676
677
	DIP_SET(curinode, di_size, len);
678
	inodirty();
679
	printactive();
680
	return rval;
681
}
682
683
CMDFUNCSTART(chaflags)
684
{
685
	int rval = 1;
686
	u_long flags;
687
	char *cp;
688
689
	if (!checkactive())
690
		return 1;
691
692
	flags = strtoul(argv[1], &cp, 0);
693
	if (cp == argv[1] || *cp != '\0' ) {
694
		warnx("bad flags `%s'", argv[1]);
695
		return 1;
696
	}
697
698
	if (flags > UINT_MAX) {
699
		warnx("flags set beyond 32-bit range of field (%lx)", flags);
700
		return(1);
701
	}
702
	DIP_SET(curinode, di_flags, flags);
703
	inodirty();
704
	printactive();
705
	return rval;
706
}
707
708
CMDFUNCSTART(chgen)
709
{
710
	int rval = 1;
711
	long gen;
712
	char *cp;
713
714
	if (!checkactive())
715
		return 1;
716
717
	gen = strtol(argv[1], &cp, 0);
718
	if (cp == argv[1] || *cp != '\0' ) {
719
		warnx("bad gen `%s'", argv[1]);
720
		return 1;
721
	}
722
723
	if (gen > INT_MAX || gen < INT_MIN) {
724
		warnx("gen set beyond 32-bit range of field (%lx)", gen);
725
		return(1);
726
	}
727
	DIP_SET(curinode, di_gen, gen);
728
	inodirty();
729
	printactive();
730
	return rval;
731
}
732
733
CMDFUNCSTART(linkcount)
734
{
735
	int rval = 1;
736
	int lcnt;
737
	char *cp;
738
739
	if (!checkactive())
740
		return 1;
741
742
	lcnt = strtol(argv[1], &cp, 0);
743
	if (cp == argv[1] || *cp != '\0' ) {
744
		warnx("bad link count `%s'", argv[1]);
745
		return 1;
746
	}
747
	if (lcnt > USHRT_MAX || lcnt < 0) {
748
		warnx("max link count is %d", USHRT_MAX);
749
		return 1;
750
	}
751
752
	DIP_SET(curinode, di_nlink, lcnt);
753
	inodirty();
754
	printactive();
755
	return rval;
756
}
757
758
CMDFUNCSTART(chowner)
759
{
760
	int rval = 1;
761
	uid_t uid;
762
	char *cp;
763
	struct passwd *pwd;
764
765
	if (!checkactive())
766
		return 1;
767
768
	uid = strtoul(argv[1], &cp, 0);
769
	if (cp == argv[1] || *cp != '\0' ) {
770
		/* try looking up name */
771
		if ((pwd = getpwnam(argv[1]))) {
772
			uid = pwd->pw_uid;
773
		} else {
774
			warnx("bad uid `%s'", argv[1]);
775
			return 1;
776
		}
777
	}
778
779
	DIP_SET(curinode, di_uid, uid);
780
	inodirty();
781
	printactive();
782
	return rval;
783
}
784
785
CMDFUNCSTART(chgroup)
786
{
787
	int rval = 1;
788
	gid_t gid;
789
	char *cp;
790
	struct group *grp;
791
792
	if (!checkactive())
793
		return 1;
794
795
	gid = strtoul(argv[1], &cp, 0);
796
	if (cp == argv[1] || *cp != '\0' ) {
797
		if ((grp = getgrnam(argv[1]))) {
798
			gid = grp->gr_gid;
799
		} else {
800
			warnx("bad gid `%s'", argv[1]);
801
			return 1;
802
		}
803
	}
804
805
	DIP_SET(curinode, di_gid, gid);
806
	inodirty();
807
	printactive();
808
	return rval;
809
}
810
811
static int
812
dotime(char *name, time_t *rsec, int32_t *rnsec)
813
{
814
	char *p, *val;
815
	struct tm t;
816
	time_t sec;
817
	int32_t nsec;
818
819
	p = strchr(name, '.');
820
	if (p) {
821
		*p = '\0';
822
		nsec = strtoul(++p, &val, 0);
823
		if (val == p || *val != '\0' || nsec >= 1000000000 || nsec < 0) {
824
			warnx("invalid nanoseconds");
825
			goto badformat;
826
		}
827
	} else
828
		nsec = 0;
829
830
	if (strlen(name) != 14) {
831
badformat:
832
		warnx("date format: YYYYMMDDHHMMSS[.nsec]");
833
		return 1;
834
	}
835
836
	for (p = name; *p; p++)
837
		if (*p < '0' || *p > '9')
838
			    goto badformat;
839
840
	p = name;
841
#define VAL() ((*p++) - '0')
842
	bzero(&t, sizeof t);
843
	t.tm_year = VAL();
844
	t.tm_year = VAL() + t.tm_year * 10;
845
	t.tm_year = VAL() + t.tm_year * 10;
846
	t.tm_year = VAL() + t.tm_year * 10 - 1900;
847
	t.tm_mon = VAL();
848
	t.tm_mon = VAL() + t.tm_mon * 10 - 1;
849
	t.tm_mday = VAL();
850
	t.tm_mday = VAL() + t.tm_mday * 10;
851
	t.tm_hour = VAL();
852
	t.tm_hour = VAL() + t.tm_hour * 10;
853
	t.tm_min = VAL();
854
	t.tm_min = VAL() + t.tm_min * 10;
855
	t.tm_sec = VAL();
856
	t.tm_sec = VAL() + t.tm_sec * 10;
857
	t.tm_isdst = -1;
858
859
	sec = mktime(&t);
860
	if (sec == -1) {
861
		warnx("date/time out of range");
862
		return 1;
863
	}
864
	*rsec = sec;
865
	*rnsec = nsec;
866
	return 0;
867
}
868
869
CMDFUNCSTART(chmtime)
870
{
871
	time_t rsec;
872
	int32_t nsec;
873
874
	if (dotime(argv[1], &rsec, &nsec))
875
		return 1;
876
	DIP_SET(curinode, di_mtime, rsec);
877
	DIP_SET(curinode, di_mtimensec, nsec);
878
	inodirty();
879
	printactive();
880
	return 0;
881
}
882
883
CMDFUNCSTART(chatime)
884
{
885
	time_t rsec;
886
	int32_t nsec;
887
888
	if (dotime(argv[1], &rsec, &nsec))
889
		return 1;
890
	DIP_SET(curinode, di_atime, rsec);
891
	DIP_SET(curinode, di_atimensec, nsec);
892
	inodirty();
893
	printactive();
894
	return 0;
895
}
896
897
CMDFUNCSTART(chctime)
898
{
899
	time_t rsec;
900
	int32_t nsec;
901
902
	if (dotime(argv[1], &rsec, &nsec))
903
		return 1;
904
	DIP_SET(curinode, di_ctime, rsec);
905
	DIP_SET(curinode, di_ctimensec, nsec);
906
	inodirty();
907
	printactive();
908
	return 0;
909
}