dirs.c revision 92806
1/*
2 * Copyright (c) 1983, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 * (c) UNIX System Laboratories, Inc.
5 * All or some portions of this file are derived from material licensed
6 * to the University of California by American Telephone and Telegraph
7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8 * the permission of UNIX System Laboratories, Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *	This product includes software developed by the University of
21 *	California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 *    may be used to endorse or promote products derived from this software
24 *    without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 */
38
39#ifndef lint
40#if 0
41static char sccsid[] = "@(#)dirs.c	8.7 (Berkeley) 5/1/95";
42#endif
43static const char rcsid[] =
44  "$FreeBSD: head/sbin/restore/dirs.c 92806 2002-03-20 17:55:10Z obrien $";
45#endif /* not lint */
46
47#include <sys/param.h>
48#include <sys/file.h>
49#include <sys/stat.h>
50#include <sys/time.h>
51
52#include <ufs/ufs/dinode.h>
53#include <ufs/ufs/dir.h>
54#include <protocols/dumprestore.h>
55
56#include <err.h>
57#include <errno.h>
58#include <paths.h>
59#include <stdio.h>
60#include <stdlib.h>
61#include <string.h>
62#include <unistd.h>
63
64#include "restore.h"
65#include "extern.h"
66
67/*
68 * Symbol table of directories read from tape.
69 */
70#define HASHSIZE	1000
71#define INOHASH(val) (val % HASHSIZE)
72struct inotab {
73	struct	inotab *t_next;
74	ino_t	t_ino;
75	int32_t	t_seekpt;
76	int32_t	t_size;
77};
78static struct inotab *inotab[HASHSIZE];
79
80/*
81 * Information retained about directories.
82 */
83struct modeinfo {
84	ino_t ino;
85	struct timeval timep[2];
86	mode_t mode;
87	uid_t uid;
88	gid_t gid;
89	int flags;
90};
91
92/*
93 * Definitions for library routines operating on directories.
94 */
95#undef DIRBLKSIZ
96#define DIRBLKSIZ 1024
97struct rstdirdesc {
98	int	dd_fd;
99	int32_t	dd_loc;
100	int32_t	dd_size;
101	char	dd_buf[DIRBLKSIZ];
102};
103
104/*
105 * Global variables for this file.
106 */
107static long	seekpt;
108static FILE	*df, *mf;
109static RST_DIR	*dirp;
110static char	dirfile[MAXPATHLEN] = "#";	/* No file */
111static char	modefile[MAXPATHLEN] = "#";	/* No file */
112static char	dot[2] = ".";			/* So it can be modified */
113
114/*
115 * Format of old style directories.
116 */
117#define ODIRSIZ 14
118struct odirect {
119	u_short	d_ino;
120	char	d_name[ODIRSIZ];
121};
122
123static struct inotab	*allocinotab __P((ino_t, struct dinode *, long));
124static void		 dcvt __P((struct odirect *, struct direct *));
125static void		 flushent __P((void));
126static struct inotab	*inotablookup __P((ino_t));
127static RST_DIR		*opendirfile __P((const char *));
128static void		 putdir __P((char *, long));
129static void		 putent __P((struct direct *));
130static void		 rst_seekdir __P((RST_DIR *, long, long));
131static long		 rst_telldir __P((RST_DIR *));
132static struct direct	*searchdir __P((ino_t, char *));
133
134/*
135 *	Extract directory contents, building up a directory structure
136 *	on disk for extraction by name.
137 *	If genmode is requested, save mode, owner, and times for all
138 *	directories on the tape.
139 */
140void
141extractdirs(genmode)
142	int genmode;
143{
144	int i;
145	struct dinode *ip;
146	struct inotab *itp;
147	struct direct nulldir;
148	int fd;
149	const char *tmpdir;
150
151	vprintf(stdout, "Extract directories from tape\n");
152	if ((tmpdir = getenv("TMPDIR")) == NULL || tmpdir[0] == '\0')
153		tmpdir = _PATH_TMP;
154	(void) sprintf(dirfile, "%s/rstdir%d", tmpdir, dumpdate);
155	if (command != 'r' && command != 'R') {
156		(void *) strcat(dirfile, "-XXXXXX");
157		fd = mkstemp(dirfile);
158	} else
159		fd = open(dirfile, O_RDWR|O_CREAT|O_EXCL, 0666);
160	if (fd == -1 || (df = fdopen(fd, "w")) == NULL) {
161		if (fd != -1)
162			close(fd);
163		warn("%s - cannot create directory temporary\nfopen", dirfile);
164		done(1);
165	}
166	if (genmode != 0) {
167		(void) sprintf(modefile, "%s/rstmode%d", tmpdir, dumpdate);
168		if (command != 'r' && command != 'R') {
169			(void *) strcat(modefile, "-XXXXXX");
170			fd = mkstemp(modefile);
171		} else
172			fd = open(modefile, O_RDWR|O_CREAT|O_EXCL, 0666);
173		if (fd == -1 || (mf = fdopen(fd, "w")) == NULL) {
174			if (fd != -1)
175				close(fd);
176			warn("%s - cannot create modefile\nfopen", modefile);
177			done(1);
178		}
179	}
180	nulldir.d_ino = 0;
181	nulldir.d_type = DT_DIR;
182	nulldir.d_namlen = 1;
183	(void) strcpy(nulldir.d_name, "/");
184	nulldir.d_reclen = DIRSIZ(0, &nulldir);
185	for (;;) {
186		curfile.name = "<directory file - name unknown>";
187		curfile.action = USING;
188		ip = curfile.dip;
189		if (ip == NULL || (ip->di_mode & IFMT) != IFDIR) {
190			(void) fclose(df);
191			dirp = opendirfile(dirfile);
192			if (dirp == NULL)
193				fprintf(stderr, "opendirfile: %s\n",
194				    strerror(errno));
195			if (mf != NULL)
196				(void) fclose(mf);
197			i = dirlookup(dot);
198			if (i == 0)
199				panic("Root directory is not on tape\n");
200			return;
201		}
202		itp = allocinotab(curfile.ino, ip, seekpt);
203		getfile(putdir, xtrnull);
204		putent(&nulldir);
205		flushent();
206		itp->t_size = seekpt - itp->t_seekpt;
207	}
208}
209
210/*
211 * skip over all the directories on the tape
212 */
213void
214skipdirs()
215{
216
217	while (curfile.dip && (curfile.dip->di_mode & IFMT) == IFDIR) {
218		skipfile();
219	}
220}
221
222/*
223 *	Recursively find names and inumbers of all files in subtree
224 *	pname and pass them off to be processed.
225 */
226void
227treescan(pname, ino, todo)
228	char *pname;
229	ino_t ino;
230	long (*todo) __P((char *, ino_t, int));
231{
232	struct inotab *itp;
233	struct direct *dp;
234	int namelen;
235	long bpt;
236	char locname[MAXPATHLEN + 1];
237
238	itp = inotablookup(ino);
239	if (itp == NULL) {
240		/*
241		 * Pname is name of a simple file or an unchanged directory.
242		 */
243		(void) (*todo)(pname, ino, LEAF);
244		return;
245	}
246	/*
247	 * Pname is a dumped directory name.
248	 */
249	if ((*todo)(pname, ino, NODE) == FAIL)
250		return;
251	/*
252	 * begin search through the directory
253	 * skipping over "." and ".."
254	 */
255	(void) strncpy(locname, pname, sizeof(locname) - 1);
256	locname[sizeof(locname) - 1] = '\0';
257	(void) strncat(locname, "/", sizeof(locname) - strlen(locname));
258	namelen = strlen(locname);
259	rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
260	dp = rst_readdir(dirp); /* "." */
261	if (dp != NULL && strcmp(dp->d_name, ".") == 0)
262		dp = rst_readdir(dirp); /* ".." */
263	else
264		fprintf(stderr, "Warning: `.' missing from directory %s\n",
265			pname);
266	if (dp != NULL && strcmp(dp->d_name, "..") == 0)
267		dp = rst_readdir(dirp); /* first real entry */
268	else
269		fprintf(stderr, "Warning: `..' missing from directory %s\n",
270			pname);
271	bpt = rst_telldir(dirp);
272	/*
273	 * a zero inode signals end of directory
274	 */
275	while (dp != NULL) {
276		locname[namelen] = '\0';
277		if (namelen + dp->d_namlen >= sizeof(locname)) {
278			fprintf(stderr, "%s%s: name exceeds %d char\n",
279				locname, dp->d_name, sizeof(locname) - 1);
280		} else {
281			(void) strncat(locname, dp->d_name, (int)dp->d_namlen);
282			treescan(locname, dp->d_ino, todo);
283			rst_seekdir(dirp, bpt, itp->t_seekpt);
284		}
285		dp = rst_readdir(dirp);
286		bpt = rst_telldir(dirp);
287	}
288}
289
290/*
291 * Lookup a pathname which is always assumed to start from the ROOTINO.
292 */
293struct direct *
294pathsearch(pathname)
295	const char *pathname;
296{
297	ino_t ino;
298	struct direct *dp;
299	char *path, *name, buffer[MAXPATHLEN];
300
301	strcpy(buffer, pathname);
302	path = buffer;
303	ino = ROOTINO;
304	while (*path == '/')
305		path++;
306	dp = NULL;
307	while ((name = strsep(&path, "/")) != NULL && *name != '\0') {
308		if ((dp = searchdir(ino, name)) == NULL)
309			return (NULL);
310		ino = dp->d_ino;
311	}
312	return (dp);
313}
314
315/*
316 * Lookup the requested name in directory inum.
317 * Return its inode number if found, zero if it does not exist.
318 */
319static struct direct *
320searchdir(inum, name)
321	ino_t	inum;
322	char	*name;
323{
324	struct direct *dp;
325	struct inotab *itp;
326	int len;
327
328	itp = inotablookup(inum);
329	if (itp == NULL)
330		return (NULL);
331	rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
332	len = strlen(name);
333	do {
334		dp = rst_readdir(dirp);
335		if (dp == NULL)
336			return (NULL);
337	} while (dp->d_namlen != len || strncmp(dp->d_name, name, len) != 0);
338	return (dp);
339}
340
341/*
342 * Put the directory entries in the directory file
343 */
344static void
345putdir(buf, size)
346	char *buf;
347	long size;
348{
349	struct direct cvtbuf;
350	struct odirect *odp;
351	struct odirect *eodp;
352	struct direct *dp;
353	long loc, i;
354
355	if (cvtflag) {
356		eodp = (struct odirect *)&buf[size];
357		for (odp = (struct odirect *)buf; odp < eodp; odp++)
358			if (odp->d_ino != 0) {
359				dcvt(odp, &cvtbuf);
360				putent(&cvtbuf);
361			}
362	} else {
363		for (loc = 0; loc < size; ) {
364			dp = (struct direct *)(buf + loc);
365			if (Bcvt)
366				swabst((u_char *)"ls", (u_char *) dp);
367			if (oldinofmt && dp->d_ino != 0) {
368#				if BYTE_ORDER == BIG_ENDIAN
369					if (Bcvt)
370						dp->d_namlen = dp->d_type;
371#				else
372					if (!Bcvt)
373						dp->d_namlen = dp->d_type;
374#				endif
375				dp->d_type = DT_UNKNOWN;
376			}
377			i = DIRBLKSIZ - (loc & (DIRBLKSIZ - 1));
378			if ((dp->d_reclen & 0x3) != 0 ||
379			    dp->d_reclen > i ||
380			    dp->d_reclen < DIRSIZ(0, dp) ||
381			    dp->d_namlen > NAME_MAX) {
382				vprintf(stdout, "Mangled directory: ");
383				if ((dp->d_reclen & 0x3) != 0)
384					vprintf(stdout,
385					   "reclen not multiple of 4 ");
386				if (dp->d_reclen < DIRSIZ(0, dp))
387					vprintf(stdout,
388					   "reclen less than DIRSIZ (%d < %d) ",
389					   dp->d_reclen, DIRSIZ(0, dp));
390				if (dp->d_namlen > NAME_MAX)
391					vprintf(stdout,
392					   "reclen name too big (%d > %d) ",
393					   dp->d_namlen, NAME_MAX);
394				vprintf(stdout, "\n");
395				loc += i;
396				continue;
397			}
398			loc += dp->d_reclen;
399			if (dp->d_ino != 0) {
400				putent(dp);
401			}
402		}
403	}
404}
405
406/*
407 * These variables are "local" to the following two functions.
408 */
409char dirbuf[DIRBLKSIZ];
410long dirloc = 0;
411long prev = 0;
412
413/*
414 * add a new directory entry to a file.
415 */
416static void
417putent(dp)
418	struct direct *dp;
419{
420	dp->d_reclen = DIRSIZ(0, dp);
421	if (dirloc + dp->d_reclen > DIRBLKSIZ) {
422		((struct direct *)(dirbuf + prev))->d_reclen =
423		    DIRBLKSIZ - prev;
424		(void) fwrite(dirbuf, 1, DIRBLKSIZ, df);
425		dirloc = 0;
426	}
427	memmove(dirbuf + dirloc, dp, (long)dp->d_reclen);
428	prev = dirloc;
429	dirloc += dp->d_reclen;
430}
431
432/*
433 * flush out a directory that is finished.
434 */
435static void
436flushent()
437{
438	((struct direct *)(dirbuf + prev))->d_reclen = DIRBLKSIZ - prev;
439	(void) fwrite(dirbuf, (int)dirloc, 1, df);
440	seekpt = ftell(df);
441	dirloc = 0;
442}
443
444static void
445dcvt(odp, ndp)
446	struct odirect *odp;
447	struct direct *ndp;
448{
449
450	memset(ndp, 0, (long)(sizeof *ndp));
451	ndp->d_ino =  odp->d_ino;
452	ndp->d_type = DT_UNKNOWN;
453	(void) strncpy(ndp->d_name, odp->d_name, ODIRSIZ);
454	ndp->d_namlen = strlen(ndp->d_name);
455	ndp->d_reclen = DIRSIZ(0, ndp);
456}
457
458/*
459 * Seek to an entry in a directory.
460 * Only values returned by rst_telldir should be passed to rst_seekdir.
461 * This routine handles many directories in a single file.
462 * It takes the base of the directory in the file, plus
463 * the desired seek offset into it.
464 */
465static void
466rst_seekdir(dirp, loc, base)
467	RST_DIR *dirp;
468	long loc, base;
469{
470
471	if (loc == rst_telldir(dirp))
472		return;
473	loc -= base;
474	if (loc < 0)
475		fprintf(stderr, "bad seek pointer to rst_seekdir %ld\n", loc);
476	(void) lseek(dirp->dd_fd, base + (loc & ~(DIRBLKSIZ - 1)), SEEK_SET);
477	dirp->dd_loc = loc & (DIRBLKSIZ - 1);
478	if (dirp->dd_loc != 0)
479		dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ);
480}
481
482/*
483 * get next entry in a directory.
484 */
485struct direct *
486rst_readdir(dirp)
487	RST_DIR *dirp;
488{
489	struct direct *dp;
490
491	for (;;) {
492		if (dirp->dd_loc == 0) {
493			dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf,
494			    DIRBLKSIZ);
495			if (dirp->dd_size <= 0) {
496				dprintf(stderr, "error reading directory\n");
497				return (NULL);
498			}
499		}
500		if (dirp->dd_loc >= dirp->dd_size) {
501			dirp->dd_loc = 0;
502			continue;
503		}
504		dp = (struct direct *)(dirp->dd_buf + dirp->dd_loc);
505		if (dp->d_reclen == 0 ||
506		    dp->d_reclen > DIRBLKSIZ + 1 - dirp->dd_loc) {
507			dprintf(stderr, "corrupted directory: bad reclen %d\n",
508				dp->d_reclen);
509			return (NULL);
510		}
511		dirp->dd_loc += dp->d_reclen;
512		if (dp->d_ino == 0 && strcmp(dp->d_name, "/") == 0)
513			return (NULL);
514		if (dp->d_ino >= maxino) {
515			dprintf(stderr, "corrupted directory: bad inum %d\n",
516				dp->d_ino);
517			continue;
518		}
519		return (dp);
520	}
521}
522
523/*
524 * Simulate the opening of a directory
525 */
526RST_DIR *
527rst_opendir(name)
528	const char *name;
529{
530	struct inotab *itp;
531	RST_DIR *dirp;
532	ino_t ino;
533
534	if ((ino = dirlookup(name)) > 0 &&
535	    (itp = inotablookup(ino)) != NULL) {
536		dirp = opendirfile(dirfile);
537		rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
538		return (dirp);
539	}
540	return (NULL);
541}
542
543/*
544 * In our case, there is nothing to do when closing a directory.
545 */
546void
547rst_closedir(dirp)
548	RST_DIR *dirp;
549{
550
551	(void)close(dirp->dd_fd);
552	free(dirp);
553	return;
554}
555
556/*
557 * Simulate finding the current offset in the directory.
558 */
559static long
560rst_telldir(dirp)
561	RST_DIR *dirp;
562{
563	return ((long)lseek(dirp->dd_fd,
564	    (off_t)0, SEEK_CUR) - dirp->dd_size + dirp->dd_loc);
565}
566
567/*
568 * Open a directory file.
569 */
570static RST_DIR *
571opendirfile(name)
572	const char *name;
573{
574	RST_DIR *dirp;
575	int fd;
576
577	if ((fd = open(name, O_RDONLY)) == -1)
578		return (NULL);
579	if ((dirp = malloc(sizeof(RST_DIR))) == NULL) {
580		(void)close(fd);
581		return (NULL);
582	}
583	dirp->dd_fd = fd;
584	dirp->dd_loc = 0;
585	return (dirp);
586}
587
588/*
589 * Set the mode, owner, and times for all new or changed directories
590 */
591void
592setdirmodes(flags)
593	int flags;
594{
595	FILE *mf;
596	struct modeinfo node;
597	struct entry *ep;
598	char *cp;
599	const char *tmpdir;
600
601	vprintf(stdout, "Set directory mode, owner, and times.\n");
602	if ((tmpdir = getenv("TMPDIR")) == NULL || tmpdir[0] == '\0')
603		tmpdir = _PATH_TMP;
604	if (command == 'r' || command == 'R')
605		(void) sprintf(modefile, "%s/rstmode%d", tmpdir, dumpdate);
606	if (modefile[0] == '#') {
607		panic("modefile not defined\n");
608		fprintf(stderr, "directory mode, owner, and times not set\n");
609		return;
610	}
611	mf = fopen(modefile, "r");
612	if (mf == NULL) {
613		fprintf(stderr, "fopen: %s\n", strerror(errno));
614		fprintf(stderr, "cannot open mode file %s\n", modefile);
615		fprintf(stderr, "directory mode, owner, and times not set\n");
616		return;
617	}
618	clearerr(mf);
619	for (;;) {
620		(void) fread((char *)&node, 1, sizeof(struct modeinfo), mf);
621		if (feof(mf))
622			break;
623		ep = lookupino(node.ino);
624		if (command == 'i' || command == 'x') {
625			if (ep == NULL)
626				continue;
627			if ((flags & FORCE) == 0 && ep->e_flags & EXISTED) {
628				ep->e_flags &= ~NEW;
629				continue;
630			}
631			if (node.ino == ROOTINO &&
632		   	    reply("set owner/mode for '.'") == FAIL)
633				continue;
634		}
635		if (ep == NULL) {
636			panic("cannot find directory inode %d\n", node.ino);
637		} else {
638			cp = myname(ep);
639			if (!Nflag) {
640				(void) chown(cp, node.uid, node.gid);
641				(void) chmod(cp, node.mode);
642				utimes(cp, node.timep);
643				(void) chflags(cp, node.flags);
644			}
645			ep->e_flags &= ~NEW;
646		}
647	}
648	if (ferror(mf))
649		panic("error setting directory modes\n");
650	(void) fclose(mf);
651}
652
653/*
654 * Generate a literal copy of a directory.
655 */
656int
657genliteraldir(name, ino)
658	char *name;
659	ino_t ino;
660{
661	struct inotab *itp;
662	int ofile, dp, i, size;
663	char buf[BUFSIZ];
664
665	itp = inotablookup(ino);
666	if (itp == NULL)
667		panic("Cannot find directory inode %d named %s\n", ino, name);
668	if ((ofile = open(name, O_WRONLY | O_CREAT | O_TRUNC, 0666)) < 0) {
669		fprintf(stderr, "%s: ", name);
670		(void) fflush(stderr);
671		fprintf(stderr, "cannot create file: %s\n", strerror(errno));
672		return (FAIL);
673	}
674	rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
675	dp = dup(dirp->dd_fd);
676	for (i = itp->t_size; i > 0; i -= BUFSIZ) {
677		size = i < BUFSIZ ? i : BUFSIZ;
678		if (read(dp, buf, (int) size) == -1) {
679			fprintf(stderr,
680				"write error extracting inode %d, name %s\n",
681				curfile.ino, curfile.name);
682			fprintf(stderr, "read: %s\n", strerror(errno));
683			done(1);
684		}
685		if (!Nflag && write(ofile, buf, (int) size) == -1) {
686			fprintf(stderr,
687				"write error extracting inode %d, name %s\n",
688				curfile.ino, curfile.name);
689			fprintf(stderr, "write: %s\n", strerror(errno));
690			done(1);
691		}
692	}
693	(void) close(dp);
694	(void) close(ofile);
695	return (GOOD);
696}
697
698/*
699 * Determine the type of an inode
700 */
701int
702inodetype(ino)
703	ino_t ino;
704{
705	struct inotab *itp;
706
707	itp = inotablookup(ino);
708	if (itp == NULL)
709		return (LEAF);
710	return (NODE);
711}
712
713/*
714 * Allocate and initialize a directory inode entry.
715 * If requested, save its pertinent mode, owner, and time info.
716 */
717static struct inotab *
718allocinotab(ino, dip, seekpt)
719	ino_t ino;
720	struct dinode *dip;
721	long seekpt;
722{
723	struct inotab	*itp;
724	struct modeinfo node;
725
726	itp = calloc(1, sizeof(struct inotab));
727	if (itp == NULL)
728		panic("no memory directory table\n");
729	itp->t_next = inotab[INOHASH(ino)];
730	inotab[INOHASH(ino)] = itp;
731	itp->t_ino = ino;
732	itp->t_seekpt = seekpt;
733	if (mf == NULL)
734		return (itp);
735	node.ino = ino;
736	node.timep[0].tv_sec = dip->di_atime;
737	node.timep[0].tv_usec = dip->di_atimensec / 1000;
738	node.timep[1].tv_sec = dip->di_mtime;
739	node.timep[1].tv_usec = dip->di_mtimensec / 1000;
740	node.mode = dip->di_mode;
741	node.flags = dip->di_flags;
742	node.uid = dip->di_uid;
743	node.gid = dip->di_gid;
744	(void) fwrite((char *)&node, 1, sizeof(struct modeinfo), mf);
745	return (itp);
746}
747
748/*
749 * Look up an inode in the table of directories
750 */
751static struct inotab *
752inotablookup(ino)
753	ino_t	ino;
754{
755	struct inotab *itp;
756
757	for (itp = inotab[INOHASH(ino)]; itp != NULL; itp = itp->t_next)
758		if (itp->t_ino == ino)
759			return (itp);
760	return (NULL);
761}
762
763/*
764 * Clean up and exit
765 */
766void
767done(exitcode)
768	int exitcode;
769{
770
771	closemt();
772	if (modefile[0] != '#')
773		(void) unlink(modefile);
774	if (dirfile[0] != '#')
775		(void) unlink(dirfile);
776	exit(exitcode);
777}
778