dirs.c revision 167011
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 167011 2007-02-26 08:15:56Z 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 + 1];
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) strncpy(locname, pname, sizeof(locname) - 1);
239	locname[sizeof(locname) - 1] = '\0';
240	(void) strncat(locname, "/", sizeof(locname) - strlen(locname));
241	namelen = strlen(locname);
242	rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
243	dp = rst_readdir(dirp); /* "." */
244	if (dp != NULL && strcmp(dp->d_name, ".") == 0)
245		dp = rst_readdir(dirp); /* ".." */
246	else
247		fprintf(stderr, "Warning: `.' missing from directory %s\n",
248			pname);
249	if (dp != NULL && strcmp(dp->d_name, "..") == 0)
250		dp = rst_readdir(dirp); /* first real entry */
251	else
252		fprintf(stderr, "Warning: `..' missing from directory %s\n",
253			pname);
254	bpt = rst_telldir(dirp);
255	/*
256	 * a zero inode signals end of directory
257	 */
258	while (dp != NULL) {
259		locname[namelen] = '\0';
260		if (namelen + dp->d_namlen >= sizeof(locname)) {
261			fprintf(stderr, "%s%s: name exceeds %d char\n",
262				locname, dp->d_name, sizeof(locname) - 1);
263		} else {
264			(void) strncat(locname, dp->d_name, (int)dp->d_namlen);
265			treescan(locname, dp->d_ino, todo);
266			rst_seekdir(dirp, bpt, itp->t_seekpt);
267		}
268		dp = rst_readdir(dirp);
269		bpt = rst_telldir(dirp);
270	}
271}
272
273/*
274 * Lookup a pathname which is always assumed to start from the ROOTINO.
275 */
276struct direct *
277pathsearch(const char *pathname)
278{
279	ino_t ino;
280	struct direct *dp;
281	char *path, *name, buffer[MAXPATHLEN];
282
283	strcpy(buffer, pathname);
284	path = buffer;
285	ino = ROOTINO;
286	while (*path == '/')
287		path++;
288	dp = NULL;
289	while ((name = strsep(&path, "/")) != NULL && *name != '\0') {
290		if ((dp = searchdir(ino, name)) == NULL)
291			return (NULL);
292		ino = dp->d_ino;
293	}
294	return (dp);
295}
296
297/*
298 * Lookup the requested name in directory inum.
299 * Return its inode number if found, zero if it does not exist.
300 */
301static struct direct *
302searchdir(ino_t	inum, char *name)
303{
304	struct direct *dp;
305	struct inotab *itp;
306	int len;
307
308	itp = inotablookup(inum);
309	if (itp == NULL)
310		return (NULL);
311	rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
312	len = strlen(name);
313	do {
314		dp = rst_readdir(dirp);
315		if (dp == NULL)
316			return (NULL);
317	} while (dp->d_namlen != len || strncmp(dp->d_name, name, len) != 0);
318	return (dp);
319}
320
321/*
322 * Put the directory entries in the directory file
323 */
324static void
325putdir(char *buf, long size)
326{
327	struct direct *dp;
328	long loc, i;
329
330	for (loc = 0; loc < size; ) {
331		dp = (struct direct *)(buf + loc);
332		if (Bcvt)
333			swabst((u_char *)"ls", (u_char *) dp);
334		if (oldinofmt && dp->d_ino != 0) {
335#if BYTE_ORDER == BIG_ENDIAN
336			if (Bcvt)
337				dp->d_namlen = dp->d_type;
338#else
339			if (!Bcvt && dp->d_namlen == 0)
340				dp->d_namlen = dp->d_type;
341#endif
342			dp->d_type = DT_UNKNOWN;
343		}
344		i = DIRBLKSIZ - (loc & (DIRBLKSIZ - 1));
345		if ((dp->d_reclen & 0x3) != 0 ||
346		    dp->d_reclen > i ||
347		    dp->d_reclen < DIRSIZ(0, dp)
348#if NAME_MAX < 255
349		    || dp->d_namlen > NAME_MAX
350#endif
351		    ) {
352			vprintf(stdout, "Mangled directory: ");
353			if ((dp->d_reclen & 0x3) != 0)
354				vprintf(stdout,
355				   "reclen not multiple of 4 ");
356			if (dp->d_reclen < DIRSIZ(0, dp))
357				vprintf(stdout,
358				   "reclen less than DIRSIZ (%d < %d) ",
359				   dp->d_reclen, DIRSIZ(0, dp));
360#if NAME_MAX < 255
361			if (dp->d_namlen > NAME_MAX)
362				vprintf(stdout,
363				   "reclen name too big (%d > %d) ",
364				   dp->d_namlen, NAME_MAX);
365#endif
366			vprintf(stdout, "\n");
367			loc += i;
368			continue;
369		}
370		loc += dp->d_reclen;
371		if (dp->d_ino != 0) {
372			putent(dp);
373		}
374	}
375}
376
377/*
378 * These variables are "local" to the following two functions.
379 */
380char dirbuf[DIRBLKSIZ];
381long dirloc = 0;
382long prev = 0;
383
384/*
385 * add a new directory entry to a file.
386 */
387static void
388putent(struct direct *dp)
389{
390	dp->d_reclen = DIRSIZ(0, dp);
391	if (dirloc + dp->d_reclen > DIRBLKSIZ) {
392		((struct direct *)(dirbuf + prev))->d_reclen =
393		    DIRBLKSIZ - prev;
394		(void) fwrite(dirbuf, 1, DIRBLKSIZ, df);
395		dirloc = 0;
396	}
397	memmove(dirbuf + dirloc, dp, (long)dp->d_reclen);
398	prev = dirloc;
399	dirloc += dp->d_reclen;
400}
401
402/*
403 * flush out a directory that is finished.
404 */
405static void
406flushent(void)
407{
408	((struct direct *)(dirbuf + prev))->d_reclen = DIRBLKSIZ - prev;
409	(void) fwrite(dirbuf, (int)dirloc, 1, df);
410	seekpt = ftell(df);
411	dirloc = 0;
412}
413
414/*
415 * Save extended attributes for a directory entry to a file.
416 */
417static void
418putdirattrs(char *buf, long size)
419{
420
421	if (mf != NULL)
422		(void) fwrite(buf, 1, size, mf);
423}
424
425/*
426 * Seek to an entry in a directory.
427 * Only values returned by rst_telldir should be passed to rst_seekdir.
428 * This routine handles many directories in a single file.
429 * It takes the base of the directory in the file, plus
430 * the desired seek offset into it.
431 */
432static void
433rst_seekdir(RST_DIR *dirp, long loc, long base)
434{
435
436	if (loc == rst_telldir(dirp))
437		return;
438	loc -= base;
439	if (loc < 0)
440		fprintf(stderr, "bad seek pointer to rst_seekdir %ld\n", loc);
441	(void) lseek(dirp->dd_fd, base + (loc & ~(DIRBLKSIZ - 1)), SEEK_SET);
442	dirp->dd_loc = loc & (DIRBLKSIZ - 1);
443	if (dirp->dd_loc != 0)
444		dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ);
445}
446
447/*
448 * get next entry in a directory.
449 */
450struct direct *
451rst_readdir(RST_DIR *dirp)
452{
453	struct direct *dp;
454
455	for (;;) {
456		if (dirp->dd_loc == 0) {
457			dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf,
458			    DIRBLKSIZ);
459			if (dirp->dd_size <= 0) {
460				dprintf(stderr, "error reading directory\n");
461				return (NULL);
462			}
463		}
464		if (dirp->dd_loc >= dirp->dd_size) {
465			dirp->dd_loc = 0;
466			continue;
467		}
468		dp = (struct direct *)(dirp->dd_buf + dirp->dd_loc);
469		if (dp->d_reclen == 0 ||
470		    dp->d_reclen > DIRBLKSIZ + 1 - dirp->dd_loc) {
471			dprintf(stderr, "corrupted directory: bad reclen %d\n",
472				dp->d_reclen);
473			return (NULL);
474		}
475		dirp->dd_loc += dp->d_reclen;
476		if (dp->d_ino == 0 && strcmp(dp->d_name, "/") == 0)
477			return (NULL);
478		if (dp->d_ino >= maxino) {
479			dprintf(stderr, "corrupted directory: bad inum %d\n",
480				dp->d_ino);
481			continue;
482		}
483		return (dp);
484	}
485}
486
487/*
488 * Simulate the opening of a directory
489 */
490void *
491rst_opendir(const char *name)
492{
493	struct inotab *itp;
494	RST_DIR *dirp;
495	ino_t ino;
496
497	if ((ino = dirlookup(name)) > 0 &&
498	    (itp = inotablookup(ino)) != NULL) {
499		dirp = opendirfile(dirfile);
500		rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
501		return (dirp);
502	}
503	return (NULL);
504}
505
506/*
507 * In our case, there is nothing to do when closing a directory.
508 */
509void
510rst_closedir(void *arg)
511{
512	RST_DIR *dirp;
513
514	dirp = arg;
515	(void)close(dirp->dd_fd);
516	free(dirp);
517	return;
518}
519
520/*
521 * Simulate finding the current offset in the directory.
522 */
523static long
524rst_telldir(RST_DIR *dirp)
525{
526	return ((long)lseek(dirp->dd_fd,
527	    (off_t)0, SEEK_CUR) - dirp->dd_size + dirp->dd_loc);
528}
529
530/*
531 * Open a directory file.
532 */
533static RST_DIR *
534opendirfile(const char *name)
535{
536	RST_DIR *dirp;
537	int fd;
538
539	if ((fd = open(name, O_RDONLY)) == -1)
540		return (NULL);
541	if ((dirp = malloc(sizeof(RST_DIR))) == NULL) {
542		(void)close(fd);
543		return (NULL);
544	}
545	dirp->dd_fd = fd;
546	dirp->dd_loc = 0;
547	return (dirp);
548}
549
550/*
551 * Set the mode, owner, and times for all new or changed directories
552 */
553void
554setdirmodes(int flags)
555{
556	FILE *mf;
557	struct modeinfo node;
558	struct entry *ep;
559	char *cp, *buf;
560	const char *tmpdir;
561	int bufsize;
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	for (;;) {
583		(void) fread((char *)&node, 1, sizeof(struct modeinfo), mf);
584		if (feof(mf))
585			break;
586		if (node.extsize > 0) {
587			if (bufsize < node.extsize) {
588				if (bufsize > 0)
589					free(buf);
590				if ((buf = malloc(node.extsize)) != 0) {
591					bufsize = node.extsize;
592				} else {
593					bufsize = 0;
594				}
595			}
596			if (bufsize >= node.extsize) {
597				(void) fread(buf, 1, node.extsize, mf);
598			} else {
599				(void) fseek(mf, node.extsize, SEEK_CUR);
600			}
601		}
602		ep = lookupino(node.ino);
603		if (command == 'i' || command == 'x') {
604			if (ep == NULL)
605				continue;
606			if ((flags & FORCE) == 0 && ep->e_flags & EXISTED) {
607				ep->e_flags &= ~NEW;
608				continue;
609			}
610			if (node.ino == ROOTINO &&
611		   	    reply("set owner/mode for '.'") == FAIL)
612				continue;
613		}
614		if (ep == NULL) {
615			panic("cannot find directory inode %d\n", node.ino);
616			continue;
617		}
618		cp = myname(ep);
619		if (!Nflag) {
620			if (node.extsize > 0) {
621				if (bufsize >= node.extsize) {
622					set_extattr_file(cp, buf, node.extsize);
623				} else {
624					fprintf(stderr, "Cannot restore %s%s\n",
625					    "extended attributes for ", cp);
626				}
627			}
628			(void) chown(cp, node.uid, node.gid);
629			(void) chmod(cp, node.mode);
630			utimes(cp, node.ctimep);
631			utimes(cp, node.mtimep);
632			(void) chflags(cp, node.flags);
633		}
634		ep->e_flags &= ~NEW;
635	}
636	if (bufsize > 0)
637		free(buf);
638	if (ferror(mf))
639		panic("error setting directory modes\n");
640	(void) fclose(mf);
641}
642
643/*
644 * Generate a literal copy of a directory.
645 */
646int
647genliteraldir(char *name, ino_t ino)
648{
649	struct inotab *itp;
650	int ofile, dp, i, size;
651	char buf[BUFSIZ];
652
653	itp = inotablookup(ino);
654	if (itp == NULL)
655		panic("Cannot find directory inode %d named %s\n", ino, name);
656	if ((ofile = open(name, O_WRONLY | O_CREAT | O_TRUNC, 0666)) < 0) {
657		fprintf(stderr, "%s: ", name);
658		(void) fflush(stderr);
659		fprintf(stderr, "cannot create file: %s\n", strerror(errno));
660		return (FAIL);
661	}
662	rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
663	dp = dup(dirp->dd_fd);
664	for (i = itp->t_size; i > 0; i -= BUFSIZ) {
665		size = i < BUFSIZ ? i : BUFSIZ;
666		if (read(dp, buf, (int) size) == -1) {
667			fprintf(stderr,
668				"write error extracting inode %d, name %s\n",
669				curfile.ino, curfile.name);
670			fprintf(stderr, "read: %s\n", strerror(errno));
671			done(1);
672		}
673		if (!Nflag && write(ofile, buf, (int) size) == -1) {
674			fprintf(stderr,
675				"write error extracting inode %d, name %s\n",
676				curfile.ino, curfile.name);
677			fprintf(stderr, "write: %s\n", strerror(errno));
678			done(1);
679		}
680	}
681	(void) close(dp);
682	(void) close(ofile);
683	return (GOOD);
684}
685
686/*
687 * Determine the type of an inode
688 */
689int
690inodetype(ino_t ino)
691{
692	struct inotab *itp;
693
694	itp = inotablookup(ino);
695	if (itp == NULL)
696		return (LEAF);
697	return (NODE);
698}
699
700/*
701 * Allocate and initialize a directory inode entry.
702 * If requested, save its pertinent mode, owner, and time info.
703 */
704static struct inotab *
705allocinotab(struct context *ctxp, long seekpt)
706{
707	struct inotab	*itp;
708	struct modeinfo node;
709
710	itp = calloc(1, sizeof(struct inotab));
711	if (itp == NULL)
712		panic("no memory for directory table\n");
713	itp->t_next = inotab[INOHASH(ctxp->ino)];
714	inotab[INOHASH(ctxp->ino)] = itp;
715	itp->t_ino = ctxp->ino;
716	itp->t_seekpt = seekpt;
717	if (mf == NULL)
718		return (itp);
719	node.ino = ctxp->ino;
720	node.mtimep[0].tv_sec = ctxp->atime_sec;
721	node.mtimep[0].tv_usec = ctxp->atime_nsec / 1000;
722	node.mtimep[1].tv_sec = ctxp->mtime_sec;
723	node.mtimep[1].tv_usec = ctxp->mtime_nsec / 1000;
724	node.ctimep[0].tv_sec = ctxp->atime_sec;
725	node.ctimep[0].tv_usec = ctxp->atime_nsec / 1000;
726	node.ctimep[1].tv_sec = ctxp->birthtime_sec;
727	node.ctimep[1].tv_usec = ctxp->birthtime_nsec / 1000;
728	node.extsize = ctxp->extsize;
729	node.mode = ctxp->mode;
730	node.flags = ctxp->file_flags;
731	node.uid = ctxp->uid;
732	node.gid = ctxp->gid;
733	(void) fwrite((char *)&node, 1, sizeof(struct modeinfo), mf);
734	return (itp);
735}
736
737/*
738 * Look up an inode in the table of directories
739 */
740static struct inotab *
741inotablookup(ino_t ino)
742{
743	struct inotab *itp;
744
745	for (itp = inotab[INOHASH(ino)]; itp != NULL; itp = itp->t_next)
746		if (itp->t_ino == ino)
747			return (itp);
748	return (NULL);
749}
750
751/*
752 * Clean up and exit
753 */
754void
755done(int exitcode)
756{
757
758	closemt();
759	if (modefile[0] != '#')
760		(void) unlink(modefile);
761	if (dirfile[0] != '#')
762		(void) unlink(dirfile);
763	exit(exitcode);
764}
765