dirs.c revision 178125
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 * 4. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#ifndef lint
36#if 0
37static char sccsid[] = "@(#)dirs.c	8.7 (Berkeley) 5/1/95";
38#endif
39static const char rcsid[] =
40  "$FreeBSD: head/sbin/restore/dirs.c 178125 2008-04-11 21:48:14Z mckusick $";
41#endif /* not lint */
42
43#include <sys/param.h>
44#include <sys/file.h>
45#include <sys/stat.h>
46#include <sys/time.h>
47
48#include <ufs/ufs/dinode.h>
49#include <ufs/ufs/dir.h>
50#include <protocols/dumprestore.h>
51
52#include <err.h>
53#include <errno.h>
54#include <limits.h>
55#include <paths.h>
56#include <stdio.h>
57#include <stdlib.h>
58#include <string.h>
59#include <unistd.h>
60
61#include "restore.h"
62#include "extern.h"
63
64/*
65 * Symbol table of directories read from tape.
66 */
67#define HASHSIZE	1000
68#define INOHASH(val) (val % HASHSIZE)
69struct inotab {
70	struct	inotab *t_next;
71	ino_t	t_ino;
72	int32_t	t_seekpt;
73	int32_t	t_size;
74};
75static struct inotab *inotab[HASHSIZE];
76
77/*
78 * Information retained about directories.
79 */
80struct modeinfo {
81	ino_t ino;
82	struct timeval ctimep[2];
83	struct timeval mtimep[2];
84	mode_t mode;
85	uid_t uid;
86	gid_t gid;
87	int flags;
88	int extsize;
89};
90
91/*
92 * Definitions for library routines operating on directories.
93 */
94#undef DIRBLKSIZ
95#define DIRBLKSIZ 1024
96struct rstdirdesc {
97	int	dd_fd;
98	int32_t	dd_loc;
99	int32_t	dd_size;
100	char	dd_buf[DIRBLKSIZ];
101};
102
103/*
104 * Global variables for this file.
105 */
106static long	seekpt;
107static FILE	*df, *mf;
108static RST_DIR	*dirp;
109static char	dirfile[MAXPATHLEN] = "#";	/* No file */
110static char	modefile[MAXPATHLEN] = "#";	/* No file */
111static char	dot[2] = ".";			/* So it can be modified */
112
113static struct inotab	*allocinotab(struct context *, long);
114static void		 flushent(void);
115static struct inotab	*inotablookup(ino_t);
116static RST_DIR		*opendirfile(const char *);
117static void		 putdir(char *, long);
118static void		 putdirattrs(char *, long);
119static void		 putent(struct direct *);
120static void		 rst_seekdir(RST_DIR *, long, long);
121static long		 rst_telldir(RST_DIR *);
122static struct direct	*searchdir(ino_t, char *);
123
124/*
125 *	Extract directory contents, building up a directory structure
126 *	on disk for extraction by name.
127 *	If genmode is requested, save mode, owner, and times for all
128 *	directories on the tape.
129 */
130void
131extractdirs(int genmode)
132{
133	struct inotab *itp;
134	struct direct nulldir;
135	int i, fd;
136	const char *tmpdir;
137
138	vprintf(stdout, "Extract directories from tape\n");
139	if ((tmpdir = getenv("TMPDIR")) == NULL || tmpdir[0] == '\0')
140		tmpdir = _PATH_TMP;
141	(void) sprintf(dirfile, "%s/rstdir%d", tmpdir, dumpdate);
142	if (command != 'r' && command != 'R') {
143		(void *) strcat(dirfile, "-XXXXXX");
144		fd = mkstemp(dirfile);
145	} else
146		fd = open(dirfile, O_RDWR|O_CREAT|O_EXCL, 0666);
147	if (fd == -1 || (df = fdopen(fd, "w")) == NULL) {
148		if (fd != -1)
149			close(fd);
150		warn("%s - cannot create directory temporary\nfopen", dirfile);
151		done(1);
152	}
153	if (genmode != 0) {
154		(void) sprintf(modefile, "%s/rstmode%d", tmpdir, dumpdate);
155		if (command != 'r' && command != 'R') {
156			(void *) strcat(modefile, "-XXXXXX");
157			fd = mkstemp(modefile);
158		} else
159			fd = open(modefile, O_RDWR|O_CREAT|O_EXCL, 0666);
160		if (fd == -1 || (mf = fdopen(fd, "w")) == NULL) {
161			if (fd != -1)
162				close(fd);
163			warn("%s - cannot create modefile\nfopen", modefile);
164			done(1);
165		}
166	}
167	nulldir.d_ino = 0;
168	nulldir.d_type = DT_DIR;
169	nulldir.d_namlen = 1;
170	(void) strcpy(nulldir.d_name, "/");
171	nulldir.d_reclen = DIRSIZ(0, &nulldir);
172	for (;;) {
173		curfile.name = "<directory file - name unknown>";
174		curfile.action = USING;
175		if (curfile.mode == 0 || (curfile.mode & IFMT) != IFDIR) {
176			(void) fclose(df);
177			dirp = opendirfile(dirfile);
178			if (dirp == NULL)
179				fprintf(stderr, "opendirfile: %s\n",
180				    strerror(errno));
181			if (mf != NULL)
182				(void) fclose(mf);
183			i = dirlookup(dot);
184			if (i == 0)
185				panic("Root directory is not on tape\n");
186			return;
187		}
188		itp = allocinotab(&curfile, seekpt);
189		getfile(putdir, putdirattrs, xtrnull);
190		putent(&nulldir);
191		flushent();
192		itp->t_size = seekpt - itp->t_seekpt;
193	}
194}
195
196/*
197 * skip over all the directories on the tape
198 */
199void
200skipdirs(void)
201{
202
203	while (curfile.ino && (curfile.mode & IFMT) == IFDIR) {
204		skipfile();
205	}
206}
207
208/*
209 *	Recursively find names and inumbers of all files in subtree
210 *	pname and pass them off to be processed.
211 */
212void
213treescan(char *pname, ino_t ino, long (*todo)(char *, ino_t, int))
214{
215	struct inotab *itp;
216	struct direct *dp;
217	int namelen;
218	long bpt;
219	char locname[MAXPATHLEN];
220
221	itp = inotablookup(ino);
222	if (itp == NULL) {
223		/*
224		 * Pname is name of a simple file or an unchanged directory.
225		 */
226		(void) (*todo)(pname, ino, LEAF);
227		return;
228	}
229	/*
230	 * Pname is a dumped directory name.
231	 */
232	if ((*todo)(pname, ino, NODE) == FAIL)
233		return;
234	/*
235	 * begin search through the directory
236	 * skipping over "." and ".."
237	 */
238	(void) strlcpy(locname, pname, sizeof(locname));
239	(void) strlcat(locname, "/", sizeof(locname));
240	namelen = strlen(locname);
241	rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
242	dp = rst_readdir(dirp); /* "." */
243	if (dp != NULL && strcmp(dp->d_name, ".") == 0)
244		dp = rst_readdir(dirp); /* ".." */
245	else
246		fprintf(stderr, "Warning: `.' missing from directory %s\n",
247			pname);
248	if (dp != NULL && strcmp(dp->d_name, "..") == 0)
249		dp = rst_readdir(dirp); /* first real entry */
250	else
251		fprintf(stderr, "Warning: `..' missing from directory %s\n",
252			pname);
253	bpt = rst_telldir(dirp);
254	/*
255	 * a zero inode signals end of directory
256	 */
257	while (dp != NULL) {
258		locname[namelen] = '\0';
259		if (namelen + dp->d_namlen >= sizeof(locname)) {
260			fprintf(stderr, "%s%s: name exceeds %d char\n",
261				locname, dp->d_name, sizeof(locname) - 1);
262		} else {
263			(void)strlcat(locname, dp->d_name, sizeof(locname));
264			treescan(locname, dp->d_ino, todo);
265			rst_seekdir(dirp, bpt, itp->t_seekpt);
266		}
267		dp = rst_readdir(dirp);
268		bpt = rst_telldir(dirp);
269	}
270}
271
272/*
273 * Lookup a pathname which is always assumed to start from the ROOTINO.
274 */
275struct direct *
276pathsearch(const char *pathname)
277{
278	ino_t ino;
279	struct direct *dp;
280	char *path, *name, buffer[MAXPATHLEN];
281
282	strcpy(buffer, pathname);
283	path = buffer;
284	ino = ROOTINO;
285	while (*path == '/')
286		path++;
287	dp = NULL;
288	while ((name = strsep(&path, "/")) != NULL && *name != '\0') {
289		if ((dp = searchdir(ino, name)) == NULL)
290			return (NULL);
291		ino = dp->d_ino;
292	}
293	return (dp);
294}
295
296/*
297 * Lookup the requested name in directory inum.
298 * Return its inode number if found, zero if it does not exist.
299 */
300static struct direct *
301searchdir(ino_t	inum, char *name)
302{
303	struct direct *dp;
304	struct inotab *itp;
305	int len;
306
307	itp = inotablookup(inum);
308	if (itp == NULL)
309		return (NULL);
310	rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
311	len = strlen(name);
312	do {
313		dp = rst_readdir(dirp);
314		if (dp == NULL)
315			return (NULL);
316	} while (dp->d_namlen != len || strncmp(dp->d_name, name, len) != 0);
317	return (dp);
318}
319
320/*
321 * Put the directory entries in the directory file
322 */
323static void
324putdir(char *buf, long size)
325{
326	struct direct *dp;
327	long loc, i;
328
329	for (loc = 0; loc < size; ) {
330		dp = (struct direct *)(buf + loc);
331		if (Bcvt)
332			swabst((u_char *)"ls", (u_char *) dp);
333		if (oldinofmt && dp->d_ino != 0) {
334#if BYTE_ORDER == BIG_ENDIAN
335			if (Bcvt)
336				dp->d_namlen = dp->d_type;
337#else
338			if (!Bcvt && dp->d_namlen == 0)
339				dp->d_namlen = dp->d_type;
340#endif
341			dp->d_type = DT_UNKNOWN;
342		}
343		i = DIRBLKSIZ - (loc & (DIRBLKSIZ - 1));
344		if ((dp->d_reclen & 0x3) != 0 ||
345		    dp->d_reclen > i ||
346		    dp->d_reclen < DIRSIZ(0, dp)
347#if NAME_MAX < 255
348		    || dp->d_namlen > NAME_MAX
349#endif
350		    ) {
351			vprintf(stdout, "Mangled directory: ");
352			if ((dp->d_reclen & 0x3) != 0)
353				vprintf(stdout,
354				   "reclen not multiple of 4 ");
355			if (dp->d_reclen < DIRSIZ(0, dp))
356				vprintf(stdout,
357				   "reclen less than DIRSIZ (%d < %d) ",
358				   dp->d_reclen, DIRSIZ(0, dp));
359#if NAME_MAX < 255
360			if (dp->d_namlen > NAME_MAX)
361				vprintf(stdout,
362				   "reclen name too big (%d > %d) ",
363				   dp->d_namlen, NAME_MAX);
364#endif
365			vprintf(stdout, "\n");
366			loc += i;
367			continue;
368		}
369		loc += dp->d_reclen;
370		if (dp->d_ino != 0) {
371			putent(dp);
372		}
373	}
374}
375
376/*
377 * These variables are "local" to the following two functions.
378 */
379char dirbuf[DIRBLKSIZ];
380long dirloc = 0;
381long prev = 0;
382
383/*
384 * add a new directory entry to a file.
385 */
386static void
387putent(struct direct *dp)
388{
389	dp->d_reclen = DIRSIZ(0, dp);
390	if (dirloc + dp->d_reclen > DIRBLKSIZ) {
391		((struct direct *)(dirbuf + prev))->d_reclen =
392		    DIRBLKSIZ - prev;
393		(void) fwrite(dirbuf, 1, DIRBLKSIZ, df);
394		dirloc = 0;
395	}
396	memmove(dirbuf + dirloc, dp, (long)dp->d_reclen);
397	prev = dirloc;
398	dirloc += dp->d_reclen;
399}
400
401/*
402 * flush out a directory that is finished.
403 */
404static void
405flushent(void)
406{
407	((struct direct *)(dirbuf + prev))->d_reclen = DIRBLKSIZ - prev;
408	(void) fwrite(dirbuf, (int)dirloc, 1, df);
409	seekpt = ftell(df);
410	dirloc = 0;
411}
412
413/*
414 * Save extended attributes for a directory entry to a file.
415 */
416static void
417putdirattrs(char *buf, long size)
418{
419
420	if (mf != NULL)
421		(void) fwrite(buf, 1, size, mf);
422}
423
424/*
425 * Seek to an entry in a directory.
426 * Only values returned by rst_telldir should be passed to rst_seekdir.
427 * This routine handles many directories in a single file.
428 * It takes the base of the directory in the file, plus
429 * the desired seek offset into it.
430 */
431static void
432rst_seekdir(RST_DIR *dirp, long loc, long base)
433{
434
435	if (loc == rst_telldir(dirp))
436		return;
437	loc -= base;
438	if (loc < 0)
439		fprintf(stderr, "bad seek pointer to rst_seekdir %ld\n", loc);
440	(void) lseek(dirp->dd_fd, base + (loc & ~(DIRBLKSIZ - 1)), SEEK_SET);
441	dirp->dd_loc = loc & (DIRBLKSIZ - 1);
442	if (dirp->dd_loc != 0)
443		dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ);
444}
445
446/*
447 * get next entry in a directory.
448 */
449struct direct *
450rst_readdir(RST_DIR *dirp)
451{
452	struct direct *dp;
453
454	for (;;) {
455		if (dirp->dd_loc == 0) {
456			dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf,
457			    DIRBLKSIZ);
458			if (dirp->dd_size <= 0) {
459				dprintf(stderr, "error reading directory\n");
460				return (NULL);
461			}
462		}
463		if (dirp->dd_loc >= dirp->dd_size) {
464			dirp->dd_loc = 0;
465			continue;
466		}
467		dp = (struct direct *)(dirp->dd_buf + dirp->dd_loc);
468		if (dp->d_reclen == 0 ||
469		    dp->d_reclen > DIRBLKSIZ + 1 - dirp->dd_loc) {
470			dprintf(stderr, "corrupted directory: bad reclen %d\n",
471				dp->d_reclen);
472			return (NULL);
473		}
474		dirp->dd_loc += dp->d_reclen;
475		if (dp->d_ino == 0 && strcmp(dp->d_name, "/") == 0)
476			return (NULL);
477		if (dp->d_ino >= maxino) {
478			dprintf(stderr, "corrupted directory: bad inum %d\n",
479				dp->d_ino);
480			continue;
481		}
482		return (dp);
483	}
484}
485
486/*
487 * Simulate the opening of a directory
488 */
489void *
490rst_opendir(const char *name)
491{
492	struct inotab *itp;
493	RST_DIR *dirp;
494	ino_t ino;
495
496	if ((ino = dirlookup(name)) > 0 &&
497	    (itp = inotablookup(ino)) != NULL) {
498		dirp = opendirfile(dirfile);
499		rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
500		return (dirp);
501	}
502	return (NULL);
503}
504
505/*
506 * In our case, there is nothing to do when closing a directory.
507 */
508void
509rst_closedir(void *arg)
510{
511	RST_DIR *dirp;
512
513	dirp = arg;
514	(void)close(dirp->dd_fd);
515	free(dirp);
516	return;
517}
518
519/*
520 * Simulate finding the current offset in the directory.
521 */
522static long
523rst_telldir(RST_DIR *dirp)
524{
525	return ((long)lseek(dirp->dd_fd,
526	    (off_t)0, SEEK_CUR) - dirp->dd_size + dirp->dd_loc);
527}
528
529/*
530 * Open a directory file.
531 */
532static RST_DIR *
533opendirfile(const char *name)
534{
535	RST_DIR *dirp;
536	int fd;
537
538	if ((fd = open(name, O_RDONLY)) == -1)
539		return (NULL);
540	if ((dirp = malloc(sizeof(RST_DIR))) == NULL) {
541		(void)close(fd);
542		return (NULL);
543	}
544	dirp->dd_fd = fd;
545	dirp->dd_loc = 0;
546	return (dirp);
547}
548
549/*
550 * Set the mode, owner, and times for all new or changed directories
551 */
552void
553setdirmodes(int flags)
554{
555	FILE *mf;
556	struct modeinfo node;
557	struct entry *ep;
558	char *cp, *buf;
559	const char *tmpdir;
560	int bufsize;
561	uid_t myuid;
562
563	vprintf(stdout, "Set directory mode, owner, and times.\n");
564	if ((tmpdir = getenv("TMPDIR")) == NULL || tmpdir[0] == '\0')
565		tmpdir = _PATH_TMP;
566	if (command == 'r' || command == 'R')
567		(void) sprintf(modefile, "%s/rstmode%d", tmpdir, dumpdate);
568	if (modefile[0] == '#') {
569		panic("modefile not defined\n");
570		fprintf(stderr, "directory mode, owner, and times not set\n");
571		return;
572	}
573	mf = fopen(modefile, "r");
574	if (mf == NULL) {
575		fprintf(stderr, "fopen: %s\n", strerror(errno));
576		fprintf(stderr, "cannot open mode file %s\n", modefile);
577		fprintf(stderr, "directory mode, owner, and times not set\n");
578		return;
579	}
580	clearerr(mf);
581	bufsize = 0;
582	myuid = getuid();
583	for (;;) {
584		(void) fread((char *)&node, 1, sizeof(struct modeinfo), mf);
585		if (feof(mf))
586			break;
587		if (node.extsize > 0) {
588			if (bufsize < node.extsize) {
589				if (bufsize > 0)
590					free(buf);
591				if ((buf = malloc(node.extsize)) != 0) {
592					bufsize = node.extsize;
593				} else {
594					bufsize = 0;
595				}
596			}
597			if (bufsize >= node.extsize) {
598				(void) fread(buf, 1, node.extsize, mf);
599			} else {
600				(void) fseek(mf, node.extsize, SEEK_CUR);
601			}
602		}
603		ep = lookupino(node.ino);
604		if (command == 'i' || command == 'x') {
605			if (ep == NULL)
606				continue;
607			if ((flags & FORCE) == 0 && ep->e_flags & EXISTED) {
608				ep->e_flags &= ~NEW;
609				continue;
610			}
611			if (node.ino == ROOTINO &&
612		   	    reply("set owner/mode for '.'") == FAIL)
613				continue;
614		}
615		if (ep == NULL) {
616			panic("cannot find directory inode %d\n", node.ino);
617			continue;
618		}
619		cp = myname(ep);
620		if (!Nflag) {
621			if (node.extsize > 0) {
622				if (bufsize >= node.extsize) {
623					set_extattr_file(cp, buf, node.extsize);
624				} else {
625					fprintf(stderr, "Cannot restore %s%s\n",
626					    "extended attributes for ", cp);
627				}
628			}
629			if (myuid != 0)
630				(void) chown(cp, myuid, node.gid);
631			else
632				(void) chown(cp, node.uid, node.gid);
633			(void) chmod(cp, node.mode);
634			utimes(cp, node.ctimep);
635			utimes(cp, node.mtimep);
636			(void) chflags(cp, node.flags);
637		}
638		ep->e_flags &= ~NEW;
639	}
640	if (bufsize > 0)
641		free(buf);
642	if (ferror(mf))
643		panic("error setting directory modes\n");
644	(void) fclose(mf);
645}
646
647/*
648 * Generate a literal copy of a directory.
649 */
650int
651genliteraldir(char *name, ino_t ino)
652{
653	struct inotab *itp;
654	int ofile, dp, i, size;
655	char buf[BUFSIZ];
656
657	itp = inotablookup(ino);
658	if (itp == NULL)
659		panic("Cannot find directory inode %d named %s\n", ino, name);
660	if ((ofile = open(name, O_WRONLY | O_CREAT | O_TRUNC, 0666)) < 0) {
661		fprintf(stderr, "%s: ", name);
662		(void) fflush(stderr);
663		fprintf(stderr, "cannot create file: %s\n", strerror(errno));
664		return (FAIL);
665	}
666	rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
667	dp = dup(dirp->dd_fd);
668	for (i = itp->t_size; i > 0; i -= BUFSIZ) {
669		size = i < BUFSIZ ? i : BUFSIZ;
670		if (read(dp, buf, (int) size) == -1) {
671			fprintf(stderr,
672				"write error extracting inode %d, name %s\n",
673				curfile.ino, curfile.name);
674			fprintf(stderr, "read: %s\n", strerror(errno));
675			done(1);
676		}
677		if (!Nflag && write(ofile, buf, (int) size) == -1) {
678			fprintf(stderr,
679				"write error extracting inode %d, name %s\n",
680				curfile.ino, curfile.name);
681			fprintf(stderr, "write: %s\n", strerror(errno));
682			done(1);
683		}
684	}
685	(void) close(dp);
686	(void) close(ofile);
687	return (GOOD);
688}
689
690/*
691 * Determine the type of an inode
692 */
693int
694inodetype(ino_t ino)
695{
696	struct inotab *itp;
697
698	itp = inotablookup(ino);
699	if (itp == NULL)
700		return (LEAF);
701	return (NODE);
702}
703
704/*
705 * Allocate and initialize a directory inode entry.
706 * If requested, save its pertinent mode, owner, and time info.
707 */
708static struct inotab *
709allocinotab(struct context *ctxp, long seekpt)
710{
711	struct inotab	*itp;
712	struct modeinfo node;
713
714	itp = calloc(1, sizeof(struct inotab));
715	if (itp == NULL)
716		panic("no memory for directory table\n");
717	itp->t_next = inotab[INOHASH(ctxp->ino)];
718	inotab[INOHASH(ctxp->ino)] = itp;
719	itp->t_ino = ctxp->ino;
720	itp->t_seekpt = seekpt;
721	if (mf == NULL)
722		return (itp);
723	node.ino = ctxp->ino;
724	node.mtimep[0].tv_sec = ctxp->atime_sec;
725	node.mtimep[0].tv_usec = ctxp->atime_nsec / 1000;
726	node.mtimep[1].tv_sec = ctxp->mtime_sec;
727	node.mtimep[1].tv_usec = ctxp->mtime_nsec / 1000;
728	node.ctimep[0].tv_sec = ctxp->atime_sec;
729	node.ctimep[0].tv_usec = ctxp->atime_nsec / 1000;
730	node.ctimep[1].tv_sec = ctxp->birthtime_sec;
731	node.ctimep[1].tv_usec = ctxp->birthtime_nsec / 1000;
732	node.extsize = ctxp->extsize;
733	node.mode = ctxp->mode;
734	node.flags = ctxp->file_flags;
735	node.uid = ctxp->uid;
736	node.gid = ctxp->gid;
737	(void) fwrite((char *)&node, 1, sizeof(struct modeinfo), mf);
738	return (itp);
739}
740
741/*
742 * Look up an inode in the table of directories
743 */
744static struct inotab *
745inotablookup(ino_t ino)
746{
747	struct inotab *itp;
748
749	for (itp = inotab[INOHASH(ino)]; itp != NULL; itp = itp->t_next)
750		if (itp->t_ino == ino)
751			return (itp);
752	return (NULL);
753}
754
755/*
756 * Clean up and exit
757 */
758void
759done(int exitcode)
760{
761
762	closemt();
763	if (modefile[0] != '#')
764		(void) unlink(modefile);
765	if (dirfile[0] != '#')
766		(void) unlink(dirfile);
767	exit(exitcode);
768}
769