GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: sbin/restore/dirs.c Lines: 0 305 0.0 %
Date: 2017-11-07 Branches: 0 210 0.0 %

Line Branch Exec Source
1
/*	$OpenBSD: dirs.c,v 1.41 2015/08/25 04:18:43 guenther Exp $	*/
2
/*	$NetBSD: dirs.c,v 1.26 1997/07/01 05:37:49 lukem Exp $	*/
3
4
/*
5
 * Copyright (c) 1983, 1993
6
 *	The Regents of the University of California.  All rights reserved.
7
 * (c) UNIX System Laboratories, Inc.
8
 * All or some portions of this file are derived from material licensed
9
 * to the University of California by American Telephone and Telegraph
10
 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
11
 * the permission of UNIX System Laboratories, Inc.
12
 *
13
 * Redistribution and use in source and binary forms, with or without
14
 * modification, are permitted provided that the following conditions
15
 * are met:
16
 * 1. Redistributions of source code must retain the above copyright
17
 *    notice, this list of conditions and the following disclaimer.
18
 * 2. Redistributions in binary form must reproduce the above copyright
19
 *    notice, this list of conditions and the following disclaimer in the
20
 *    documentation and/or other materials provided with the distribution.
21
 * 3. Neither the name of the University nor the names of its contributors
22
 *    may be used to endorse or promote products derived from this software
23
 *    without specific prior written permission.
24
 *
25
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35
 * SUCH DAMAGE.
36
 */
37
38
#include <sys/stat.h>
39
#include <sys/time.h>
40
41
#include <ufs/ffs/fs.h>
42
#include <ufs/ufs/dinode.h>
43
#include <ufs/ufs/dir.h>
44
#include <protocols/dumprestore.h>
45
46
#include <endian.h>
47
#include <err.h>
48
#include <errno.h>
49
#include <fcntl.h>
50
#include <paths.h>
51
#include <stdio.h>
52
#include <stdlib.h>
53
#include <string.h>
54
#include <unistd.h>
55
#include <limits.h>
56
57
#include "restore.h"
58
#include "extern.h"
59
60
/*
61
 * Symbol table of directories read from tape.
62
 */
63
#define HASHSIZE	1000
64
#define INOHASH(val) (val % HASHSIZE)
65
struct inotab {
66
	struct	inotab *t_next;
67
	ino_t	t_ino;
68
	int32_t	t_seekpt;
69
	int32_t	t_size;
70
};
71
static struct inotab *inotab[HASHSIZE];
72
73
/*
74
 * Information retained about directories.
75
 */
76
struct modeinfo {
77
	ino_t ino;
78
	struct timespec ctimep[2];
79
	struct timespec mtimep[2];
80
	mode_t mode;
81
	uid_t uid;
82
	gid_t gid;
83
	u_int flags;
84
};
85
86
/*
87
 * Definitions for library routines operating on directories.
88
 */
89
#undef DIRBLKSIZ
90
#define DIRBLKSIZ 1024
91
struct rstdirdesc {
92
	int	dd_fd;
93
	int32_t	dd_loc;
94
	int32_t	dd_size;
95
	char	dd_buf[DIRBLKSIZ];
96
};
97
98
/*
99
 * Global variables for this file.
100
 */
101
static long	seekpt;
102
static FILE	*df, *mf;
103
static RST_DIR	*dirp;
104
static char	dirfile[PATH_MAX] = "#";	/* No file */
105
static char	modefile[PATH_MAX] = "#";	/* No file */
106
static char	dot[2] = ".";			/* So it can be modified */
107
108
/*
109
 * Format of old style directories.
110
 */
111
#define ODIRSIZ 14
112
struct odirect {
113
	u_short	d_ino;
114
	char	d_name[ODIRSIZ];
115
};
116
117
static struct inotab	*allocinotab(FILE *, struct context *, long);
118
static void		 dcvt(struct odirect *, struct direct *);
119
static void		 flushent(void);
120
static struct inotab	*inotablookup(ino_t);
121
static RST_DIR		*opendirfile(const char *);
122
static void		 putdir(char *, size_t);
123
static void		 putent(struct direct *);
124
static void		 rst_seekdir(RST_DIR *, long, long);
125
static long		 rst_telldir(RST_DIR *);
126
static struct direct	*searchdir(ino_t, char *);
127
128
/*
129
 *	Extract directory contents, building up a directory structure
130
 *	on disk for extraction by name.
131
 *	If genmode is requested, save mode, owner, and times for all
132
 *	directories on the tape.
133
 */
134
void
135
extractdirs(int genmode)
136
{
137
	int i;
138
	struct inotab *itp;
139
	struct direct nulldir;
140
	int fd;
141
142
	Vprintf(stdout, "Extract directories from tape\n");
143
	(void)snprintf(dirfile, sizeof(dirfile), "%s/rstdir%lld", tmpdir,
144
	    (long long)dumpdate);
145
	if (command != 'r' && command != 'R') {
146
		strlcat(dirfile, "-XXXXXXXXXX", sizeof(dirfile));
147
		fd = mkstemp(dirfile);
148
	} else
149
		fd = open(dirfile, O_RDWR|O_CREAT|O_EXCL, 0666);
150
	if (fd == -1 || (df = fdopen(fd, "w")) == NULL) {
151
		int saved_errno = errno;
152
		if (fd != -1)
153
			close(fd);
154
		errc(1, saved_errno,
155
		    "cannot create directory temporary %s", dirfile);
156
	}
157
	if (genmode != 0) {
158
		(void)snprintf(modefile, sizeof(modefile), "%s/rstmode%lld",
159
		    tmpdir, (long long)dumpdate);
160
		if (command != 'r' && command != 'R') {
161
			strlcat(modefile, "-XXXXXXXXXX", sizeof(modefile));
162
			fd = mkstemp(modefile);
163
		} else
164
			fd = open(modefile, O_RDWR|O_CREAT|O_EXCL, 0666);
165
		if (fd == -1 || (mf = fdopen(fd, "w")) == NULL) {
166
			int saved_errno = errno;
167
			if (fd != -1)
168
				close(fd);
169
			errc(1, saved_errno,
170
			    "cannot create modefile %s", modefile);
171
		}
172
	}
173
	nulldir.d_ino = 0;
174
	nulldir.d_type = DT_DIR;
175
	nulldir.d_namlen = 1;
176
	nulldir.d_name[0] = '/';
177
	nulldir.d_name[1] = '\0';
178
	nulldir.d_reclen = DIRSIZ(0, &nulldir);
179
	for (;;) {
180
		curfile.name = "<directory file - name unknown>";
181
		curfile.action = USING;
182
		if (curfile.mode == 0 || (curfile.mode & IFMT) != IFDIR) {
183
			(void)fclose(df);
184
			dirp = opendirfile(dirfile);
185
			if (dirp == NULL)
186
				warn("opendirfile");
187
			if (mf != NULL)
188
				(void)fclose(mf);
189
			i = dirlookup(dot);
190
			if (i == 0)
191
				panic("Root directory is not on tape\n");
192
			return;
193
		}
194
		itp = allocinotab(mf, &curfile, seekpt);
195
		getfile(putdir, xtrnull);
196
		putent(&nulldir);
197
		flushent();
198
		itp->t_size = seekpt - itp->t_seekpt;
199
	}
200
}
201
202
/*
203
 * skip over all the directories on the tape
204
 */
205
void
206
skipdirs(void)
207
{
208
209
	while (curfile.ino && (curfile.mode & IFMT) == IFDIR) {
210
		skipfile();
211
	}
212
}
213
214
/*
215
 *	Recursively find names and inumbers of all files in subtree
216
 *	pname and pass them off to be processed.
217
 */
218
void
219
treescan(char *pname, ino_t ino, long (*todo)(char *, ino_t, int))
220
{
221
	struct inotab *itp;
222
	struct direct *dp;
223
	size_t namelen;
224
	long bpt;
225
	char locname[PATH_MAX + 1];
226
227
	itp = inotablookup(ino);
228
	if (itp == NULL) {
229
		/*
230
		 * Pname is name of a simple file or an unchanged directory.
231
		 */
232
		(void)(*todo)(pname, ino, LEAF);
233
		return;
234
	}
235
	/*
236
	 * Pname is a dumped directory name.
237
	 */
238
	if ((*todo)(pname, ino, NODE) == FAIL)
239
		return;
240
	/*
241
	 * begin search through the directory
242
	 * skipping over "." and ".."
243
	 */
244
	namelen = strlcpy(locname, pname, sizeof(locname));
245
	if (namelen >= sizeof(locname) - 1)
246
		namelen = sizeof(locname) - 2;
247
	locname[namelen++] = '/';
248
	locname[namelen] = '\0';
249
	rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
250
	dp = rst_readdir(dirp); /* "." */
251
	if (dp != NULL && strcmp(dp->d_name, ".") == 0)
252
		dp = rst_readdir(dirp); /* ".." */
253
	else
254
		fprintf(stderr, "Warning: `.' missing from directory %s\n",
255
			pname);
256
	if (dp != NULL && strcmp(dp->d_name, "..") == 0)
257
		dp = rst_readdir(dirp); /* first real entry */
258
	else
259
		fprintf(stderr, "Warning: `..' missing from directory %s\n",
260
			pname);
261
	bpt = rst_telldir(dirp);
262
	/*
263
	 * a zero inode signals end of directory
264
	 */
265
	while (dp != NULL) {
266
		locname[namelen] = '\0';
267
		if (namelen + dp->d_namlen >= sizeof(locname)) {
268
			fprintf(stderr, "%s%s: name exceeds %zd char\n",
269
				locname, dp->d_name, sizeof(locname) - 1);
270
		} else {
271
			(void)strlcat(locname, dp->d_name, sizeof(locname));
272
			treescan(locname, dp->d_ino, todo);
273
			rst_seekdir(dirp, bpt, itp->t_seekpt);
274
		}
275
		dp = rst_readdir(dirp);
276
		bpt = rst_telldir(dirp);
277
	}
278
}
279
280
/*
281
 * Lookup a pathname which is always assumed to start from the ROOTINO.
282
 */
283
struct direct *
284
pathsearch(const char *pathname)
285
{
286
	ino_t ino;
287
	struct direct *dp;
288
	char *path, *name, buffer[PATH_MAX];
289
290
	strlcpy(buffer, pathname, sizeof buffer);
291
	path = buffer;
292
	ino = ROOTINO;
293
	while (*path == '/')
294
		path++;
295
	dp = NULL;
296
	while ((name = strsep(&path, "/")) != NULL && *name != '\0') {
297
		if ((dp = searchdir(ino, name)) == NULL)
298
			return (NULL);
299
		ino = dp->d_ino;
300
	}
301
	return (dp);
302
}
303
304
/*
305
 * Lookup the requested name in directory inum.
306
 * Return its inode number if found, zero if it does not exist.
307
 */
308
static struct direct *
309
searchdir(ino_t inum, char *name)
310
{
311
	struct direct *dp;
312
	struct inotab *itp;
313
	int len;
314
315
	itp = inotablookup(inum);
316
	if (itp == NULL)
317
		return (NULL);
318
	rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
319
	len = strlen(name);
320
	do {
321
		dp = rst_readdir(dirp);
322
		if (dp == NULL)
323
			return (NULL);
324
	} while (dp->d_namlen != len || strncmp(dp->d_name, name, len) != 0);
325
	return (dp);
326
}
327
328
/*
329
 * Put the directory entries in the directory file
330
 */
331
static void
332
putdir(char *buf, size_t size)
333
{
334
	struct direct cvtbuf;
335
	struct odirect *odp;
336
	struct odirect *eodp;
337
	struct direct *dp;
338
	size_t loc, i;
339
340
	if (cvtflag) {
341
		eodp = (struct odirect *)&buf[size];
342
		for (odp = (struct odirect *)buf; odp < eodp; odp++)
343
			if (odp->d_ino != 0) {
344
				dcvt(odp, &cvtbuf);
345
				putent(&cvtbuf);
346
			}
347
	} else {
348
		for (loc = 0; loc < size; ) {
349
			dp = (struct direct *)(buf + loc);
350
			if (Bcvt) {
351
				dp->d_ino = swap32(dp->d_ino);
352
				dp->d_reclen = swap16(dp->d_reclen);
353
			}
354
			if (oldinofmt && dp->d_ino != 0) {
355
#				if BYTE_ORDER == BIG_ENDIAN
356
					if (Bcvt)
357
						dp->d_namlen = dp->d_type;
358
#				else
359
					if (!Bcvt)
360
						dp->d_namlen = dp->d_type;
361
#				endif
362
				dp->d_type = DT_UNKNOWN;
363
			}
364
			i = DIRBLKSIZ - (loc & (DIRBLKSIZ - 1));
365
			if ((dp->d_reclen & 0x3) != 0 ||
366
			    dp->d_reclen > i ||
367
			    dp->d_reclen < DIRSIZ(0, dp) ||
368
			    dp->d_namlen > NAME_MAX) {
369
				Vprintf(stdout, "Mangled directory: ");
370
				if ((dp->d_reclen & 0x3) != 0)
371
					Vprintf(stdout,
372
					   "reclen not multiple of 4 ");
373
				if (dp->d_reclen < DIRSIZ(0, dp))
374
					Vprintf(stdout,
375
					   "reclen less than DIRSIZ (%u < %u) ",
376
					   (unsigned)dp->d_reclen,
377
					   (unsigned)DIRSIZ(0, dp));
378
				if (dp->d_namlen > NAME_MAX)
379
					Vprintf(stdout,
380
					   "reclen name too big (%u > %u) ",
381
					   (unsigned)dp->d_namlen, NAME_MAX);
382
				Vprintf(stdout, "\n");
383
				loc += i;
384
				continue;
385
			}
386
			loc += dp->d_reclen;
387
			if (dp->d_ino != 0) {
388
				putent(dp);
389
			}
390
		}
391
	}
392
}
393
394
/*
395
 * These variables are "local" to the following two functions.
396
 */
397
char dirbuf[DIRBLKSIZ];
398
long dirloc = 0;
399
long prev = 0;
400
401
/*
402
 * add a new directory entry to a file.
403
 */
404
static void
405
putent(struct direct *dp)
406
{
407
	dp->d_reclen = DIRSIZ(0, dp);
408
	if (dirloc + dp->d_reclen > DIRBLKSIZ) {
409
		((struct direct *)(dirbuf + prev))->d_reclen =
410
		    DIRBLKSIZ - prev;
411
		(void)fwrite(dirbuf, 1, DIRBLKSIZ, df);
412
		dirloc = 0;
413
	}
414
	memcpy(dirbuf + dirloc, dp, dp->d_reclen);
415
	prev = dirloc;
416
	dirloc += dp->d_reclen;
417
}
418
419
/*
420
 * flush out a directory that is finished.
421
 */
422
static void
423
flushent(void)
424
{
425
	((struct direct *)(dirbuf + prev))->d_reclen = DIRBLKSIZ - prev;
426
	(void)fwrite(dirbuf, dirloc, 1, df);
427
	seekpt = ftell(df);
428
	dirloc = 0;
429
}
430
431
static void
432
dcvt(struct odirect *odp, struct direct *ndp)
433
{
434
435
	memset(ndp, 0, sizeof *ndp);
436
	if (Bcvt)
437
	    ndp->d_ino = swap16(odp->d_ino);
438
	else
439
	    ndp->d_ino = odp->d_ino;
440
	ndp->d_type = DT_UNKNOWN;
441
	(void)strncpy(ndp->d_name, odp->d_name, ODIRSIZ);
442
	ndp->d_namlen = strlen(ndp->d_name);
443
	ndp->d_reclen = DIRSIZ(0, ndp);
444
}
445
446
/*
447
 * Seek to an entry in a directory.
448
 * Only values returned by rst_telldir should be passed to rst_seekdir.
449
 * This routine handles many directories in a single file.
450
 * It takes the base of the directory in the file, plus
451
 * the desired seek offset into it.
452
 */
453
static void
454
rst_seekdir(RST_DIR *dirp, long loc, long base)
455
{
456
457
	if (loc == rst_telldir(dirp))
458
		return;
459
	loc -= base;
460
	if (loc < 0)
461
		fprintf(stderr, "bad seek pointer to rst_seekdir %ld\n", loc);
462
	(void)lseek(dirp->dd_fd, base + (loc & ~(DIRBLKSIZ - 1)), SEEK_SET);
463
	dirp->dd_loc = loc & (DIRBLKSIZ - 1);
464
	if (dirp->dd_loc != 0)
465
		dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ);
466
}
467
468
/*
469
 * get next entry in a directory.
470
 */
471
struct direct *
472
rst_readdir(RST_DIR *dirp)
473
{
474
	struct direct *dp;
475
476
	for (;;) {
477
		if (dirp->dd_loc == 0) {
478
			dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf,
479
			    DIRBLKSIZ);
480
			if (dirp->dd_size <= 0) {
481
				Dprintf(stderr, "error reading directory\n");
482
				return (NULL);
483
			}
484
		}
485
		if (dirp->dd_loc >= dirp->dd_size) {
486
			dirp->dd_loc = 0;
487
			continue;
488
		}
489
		dp = (struct direct *)(dirp->dd_buf + dirp->dd_loc);
490
		if (dp->d_reclen == 0 ||
491
		    dp->d_reclen > DIRBLKSIZ + 1 - dirp->dd_loc) {
492
			Dprintf(stderr, "corrupted directory: bad reclen %d\n",
493
				dp->d_reclen);
494
			return (NULL);
495
		}
496
		dirp->dd_loc += dp->d_reclen;
497
		if (dp->d_ino == 0 && strcmp(dp->d_name, "/") == 0)
498
			return (NULL);
499
		if (dp->d_ino >= maxino) {
500
			Dprintf(stderr, "corrupted directory: bad inum %llu\n",
501
			    (unsigned long long)dp->d_ino);
502
			continue;
503
		}
504
		return (dp);
505
	}
506
}
507
508
/*
509
 * Simulate the opening of a directory
510
 */
511
RST_DIR *
512
rst_opendir(const char *name)
513
{
514
	struct inotab *itp;
515
	RST_DIR *dirp;
516
	ino_t ino;
517
518
	if ((ino = dirlookup(name)) > 0 &&
519
	    (itp = inotablookup(ino)) != NULL) {
520
		dirp = opendirfile(dirfile);
521
		rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
522
		return (dirp);
523
	}
524
	return (NULL);
525
}
526
527
/*
528
 * In our case, there is nothing to do when closing a directory.
529
 */
530
void
531
rst_closedir(RST_DIR *dirp)
532
{
533
	(void)close(dirp->dd_fd);
534
	free(dirp);
535
	return;
536
}
537
538
/*
539
 * Simulate finding the current offset in the directory.
540
 */
541
static long
542
rst_telldir(RST_DIR *dirp)
543
{
544
	return ((long)lseek(dirp->dd_fd,
545
	    (off_t)0, SEEK_CUR) - dirp->dd_size + dirp->dd_loc);
546
}
547
548
/*
549
 * Open a directory file.
550
 */
551
static RST_DIR *
552
opendirfile(const char *name)
553
{
554
	RST_DIR *dirp;
555
	int fd;
556
557
	if ((fd = open(name, O_RDONLY)) == -1)
558
		return (NULL);
559
	if ((dirp = malloc(sizeof(RST_DIR))) == NULL) {
560
		(void)close(fd);
561
		return (NULL);
562
	}
563
	dirp->dd_fd = fd;
564
	dirp->dd_loc = 0;
565
	return (dirp);
566
}
567
568
/*
569
 * Set the mode, owner, and times for all new or changed directories
570
 */
571
void
572
setdirmodes(int flags)
573
{
574
	FILE *mf;
575
	struct modeinfo node;
576
	struct entry *ep;
577
	char *cp;
578
579
	Vprintf(stdout, "Set directory mode, owner, and times.\n");
580
	if (command == 'r' || command == 'R')
581
		(void)snprintf(modefile, sizeof(modefile), "%s/rstmode%lld",
582
		    tmpdir, (long long)dumpdate);
583
	if (modefile[0] == '#') {
584
		panic("modefile not defined\n");
585
		fputs("directory mode, owner, and times not set\n", stderr);
586
		return;
587
	}
588
	mf = fopen(modefile, "r");
589
	if (mf == NULL) {
590
		warn("fopen");
591
		fprintf(stderr, "cannot open mode file %s\n", modefile);
592
		fprintf(stderr, "directory mode, owner, and times not set\n");
593
		return;
594
	}
595
	clearerr(mf);
596
	for (;;) {
597
		(void)fread((char *)&node, 1, sizeof(struct modeinfo), mf);
598
		if (feof(mf))
599
			break;
600
		ep = lookupino(node.ino);
601
		if (command == 'i' || command == 'x') {
602
			if (ep == NULL)
603
				continue;
604
			if ((flags & FORCE) == 0 && ep->e_flags & EXISTED) {
605
				ep->e_flags &= ~NEW;
606
				continue;
607
			}
608
			if (node.ino == ROOTINO &&
609
		   	    reply("set owner/mode for '.'") == FAIL)
610
				continue;
611
		}
612
		if (ep == NULL) {
613
			panic("cannot find directory inode %llu\n",
614
			    (unsigned long long)node.ino);
615
		} else {
616
			if (!Nflag) {
617
				cp = myname(ep);
618
				(void)chown(cp, node.uid, node.gid);
619
				(void)chmod(cp, node.mode);
620
				(void)chflags(cp, node.flags);
621
				(void)utimensat(AT_FDCWD, cp, node.ctimep, 0);
622
				(void)utimensat(AT_FDCWD, cp, node.mtimep, 0);
623
			}
624
			ep->e_flags &= ~NEW;
625
		}
626
	}
627
	if (ferror(mf))
628
		panic("error setting directory modes\n");
629
	(void)fclose(mf);
630
}
631
632
/*
633
 * Generate a literal copy of a directory.
634
 */
635
int
636
genliteraldir(char *name, ino_t ino)
637
{
638
	struct inotab *itp;
639
	int ofile, dp, i, size;
640
	char buf[BUFSIZ];
641
642
	itp = inotablookup(ino);
643
	if (itp == NULL)
644
		panic("Cannot find directory inode %llu named %s\n",
645
		    (unsigned long long)ino, name);
646
	if ((ofile = open(name, O_WRONLY | O_CREAT | O_TRUNC, 0666)) < 0) {
647
		warn("%s: cannot create file", name);
648
		return (FAIL);
649
	}
650
	rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
651
	dp = dup(dirp->dd_fd);
652
	for (i = itp->t_size; i > 0; i -= BUFSIZ) {
653
		size = i < BUFSIZ ? i : BUFSIZ;
654
		if (read(dp, buf, size) == -1)
655
			err(1, "read error extracting inode %llu, name %s",
656
			    (unsigned long long)curfile.ino, curfile.name);
657
		xtrfile(buf, size);
658
	}
659
	(void)close(dp);
660
	(void)close(ofile);
661
	return (GOOD);
662
}
663
664
/*
665
 * Determine the type of an inode
666
 */
667
int
668
inodetype(ino_t ino)
669
{
670
	struct inotab *itp;
671
672
	itp = inotablookup(ino);
673
	if (itp == NULL)
674
		return (LEAF);
675
	return (NODE);
676
}
677
678
/*
679
 * Allocate and initialize a directory inode entry.
680
 * If requested, save its pertinent mode, owner, and time info.
681
 */
682
static struct inotab *
683
allocinotab(FILE *mf, struct context *ctxp, long seekpt)
684
{
685
	struct inotab	*itp;
686
	struct modeinfo node;
687
688
	itp = calloc(1, sizeof(struct inotab));
689
	if (itp == NULL)
690
		panic("no memory directory table\n");
691
	itp->t_next = inotab[INOHASH(ctxp->ino)];
692
	inotab[INOHASH(ctxp->ino)] = itp;
693
	itp->t_ino = ctxp->ino;
694
	itp->t_seekpt = seekpt;
695
	if (mf == NULL)
696
		return (itp);
697
	node.ino = ctxp->ino;
698
	node.mtimep[0].tv_sec = ctxp->atime_sec;
699
	node.mtimep[0].tv_nsec = ctxp->atime_nsec;
700
	node.mtimep[1].tv_sec = ctxp->mtime_sec;
701
	node.mtimep[1].tv_nsec = ctxp->mtime_nsec;
702
	node.ctimep[0].tv_sec = ctxp->atime_sec;
703
	node.ctimep[0].tv_nsec = ctxp->atime_nsec;
704
	node.ctimep[1].tv_sec = ctxp->birthtime_sec;
705
	node.ctimep[1].tv_nsec = ctxp->birthtime_nsec;
706
	node.mode = ctxp->mode;
707
	node.flags = ctxp->file_flags;
708
	node.uid = ctxp->uid;
709
	node.gid = ctxp->gid;
710
	(void)fwrite((char *)&node, 1, sizeof(struct modeinfo), mf);
711
	return (itp);
712
}
713
714
/*
715
 * Look up an inode in the table of directories
716
 */
717
static struct inotab *
718
inotablookup(ino_t ino)
719
{
720
	struct inotab *itp;
721
722
	for (itp = inotab[INOHASH(ino)]; itp != NULL; itp = itp->t_next)
723
		if (itp->t_ino == ino)
724
			return (itp);
725
	return (NULL);
726
}
727
728
/*
729
 * Clean up and exit
730
 */
731
void
732
cleanup(void)
733
{
734
735
	closemt();
736
	if (modefile[0] != '#')
737
		(void)unlink(modefile);
738
	if (dirfile[0] != '#')
739
		(void)unlink(dirfile);
740
}