1 /*
2 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
3 * Use is subject to license terms.
4 */
5
6 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
7 /* All Rights Reserved */
8
9 /*
10 * Copyright (c) 1983 Regents of the University of California.
11 * All rights reserved. The Berkeley software License Agreement
12 * specifies the terms and conditions for redistribution.
13 */
14
15 #include "restore.h"
16 #include <byteorder.h>
17 #include <stdlib.h>
18 #include <unistd.h>
19 #include <utime.h>
20
21 struct context curfile;
22
23 /*
24 * Symbol table of directories read from tape.
25 */
26 #define HASHSIZE 1000
27 #define INOHASH(val) (val % HASHSIZE)
28 struct inotab {
29 struct inotab *t_next;
30 ino_t t_ino;
31 offset_t t_seekpt;
32 offset_t t_size;
33 struct inotab *t_xattr;
34 };
35 static struct inotab *inotab[HASHSIZE];
36 static struct inotab *xattrlist = NULL;
37
38 /*
39 * Information retained about directories.
40 */
41 static struct modeinfo {
42 ino_t ino;
43 time_t timep[2];
44 mode_t mode;
45 uid_t uid;
46 gid_t gid;
47 size_t metasize;
48 } node;
49
50 /*
51 * Global variables for this file.
52 */
53 static off64_t g_seekpt; /* some people have a local seekpt */
54 static FILE *df, *mf;
55 static char dirfile[MAXPATHLEN] = "#"; /* No file */
56 static char modefile[MAXPATHLEN] = "#"; /* No file */
57
58 static RST_DIR *dirp;
59
60 #define INIT_TEMPFILE(name, type) \
61 if (name[0] == '#') { \
62 if (tmpdir == (char *)NULL) /* can't happen; be paranoid */ \
63 tmpdir = "/tmp"; \
64 (void) snprintf(name, sizeof (name), \
65 "%s/rst" type "%ld.XXXXXX", tmpdir, dumpdate); \
66 (void) mktemp(name); \
67 }
68
69 #define INIT_DIRFILE() INIT_TEMPFILE(dirfile, "dir")
70 #define INIT_MODEFILE() INIT_TEMPFILE(modefile, "mode")
71
72 /*
73 * Format of old style directories.
74 */
75 #define ODIRSIZ 14
76 struct odirect {
77 ushort_t d_ino;
78 char d_name[ODIRSIZ];
79 };
80
81 static ino_t search(ino_t, char *);
82 static void putdir(char *, size_t);
83 static void putent(struct direct *);
84 static void skipmetadata(FILE *, size_t);
85 static void flushent(void);
86 static void dcvt(struct odirect *, struct direct *);
87 static RST_DIR *rst_initdirfile(char *);
88 static offset_t rst_telldir(RST_DIR *);
89 static void rst_seekdir(RST_DIR *, offset_t, offset_t);
90 static struct inotab *allocinotab(ino_t, struct dinode *, off64_t);
91 static void nodeflush(void);
92 static struct inotab *inotablookup(ino_t);
93
94 /*
95 * Extract directory contents, building up a directory structure
96 * on disk for extraction by name.
97 * If genmode is requested, save mode, owner, and times for all
98 * directories on the tape.
99 */
100 void
extractdirs(int genmode)101 extractdirs(int genmode)
102 {
103 int ts;
104 struct dinode *ip;
105 int saverr;
106 struct inotab *itp;
107 struct direct nulldir;
108 static char dotname[] = "."; /* dirlookup/psearch writes to its arg */
109
110 vprintf(stdout, gettext("Extract directories from tape\n"));
111 INIT_DIRFILE();
112 if ((df = safe_fopen(dirfile, "w", 0600)) == (FILE *)NULL) {
113 saverr = errno;
114 (void) fprintf(stderr,
115 gettext("%s: %s - cannot create directory temporary\n"),
116 progname, dirfile);
117 errno = saverr;
118 perror("fopen");
119 done(1);
120 }
121 if (genmode != 0) {
122 INIT_MODEFILE();
123 if ((mf = safe_fopen(modefile, "w", 0600)) == (FILE *)NULL) {
124 saverr = errno;
125 (void) fprintf(stderr,
126 gettext("%s: %s - cannot create modefile \n"),
127 progname, modefile);
128 errno = saverr;
129 perror("fopen");
130 done(1);
131 }
132 }
133 nulldir.d_ino = 0;
134 nulldir.d_namlen = 1;
135 (void) strcpy(nulldir.d_name, "/");
136 /* LINTED DIRSIZ will always fit into a ushort_t */
137 nulldir.d_reclen = (ushort_t)DIRSIZ(&nulldir);
138 /* LINTED sign extension ok in assert */
139 assert(DIRSIZ(&nulldir) == (ulong_t)nulldir.d_reclen);
140 for (;;) {
141 curfile.name = gettext("<directory file - name unknown>");
142 curfile.action = USING;
143 ip = curfile.dip;
144 ts = curfile.ts;
145 if (ts != TS_END && ts != TS_INODE) {
146 getfile(null, null);
147 continue;
148 }
149 if (ts == TS_INODE && ip == NULL) {
150 (void) fprintf(stderr, gettext(
151 "%s: extractdirs: Failed internal consistency check, curfile.dip is NULL\n"),
152 progname);
153 done(1);
154 }
155 if ((ts == TS_INODE && (ip->di_mode & IFMT) != IFDIR &&
156 (ip->di_mode & IFMT) != IFATTRDIR) ||
157 (ts == TS_END)) {
158 (void) fflush(df);
159 /* XXX Legitimate error, bad complaint string */
160 if (ferror(df))
161 panic("%s: %s\n", dirfile, strerror(errno));
162 (void) fclose(df);
163 rst_closedir(dirp);
164 dirp = rst_initdirfile(dirfile);
165 if (dirp == NULL)
166 perror("initdirfile");
167 if (mf != NULL) {
168 (void) fflush(mf);
169 /* XXX Legitimate error, bad complaint string */
170 if (ferror(mf))
171 panic("%s: %s\n",
172 modefile, strerror(errno));
173 (void) fclose(mf);
174 }
175 if (dirlookup(dotname) == 0) {
176 (void) fprintf(stderr, gettext(
177 "Root directory is not on tape\n"));
178 done(1);
179 }
180 return;
181 }
182 itp = allocinotab(curfile.ino, ip, g_seekpt);
183 getfile(putdir, null);
184 if (mf != NULL)
185 nodeflush();
186
187 putent(&nulldir);
188 flushent();
189 itp->t_size = g_seekpt - itp->t_seekpt;
190 }
191 }
192
193 /*
194 * skip over all the directories on the tape
195 */
196 void
skipdirs()197 skipdirs()
198 {
199 while (curfile.dip != NULL &&
200 ((curfile.dip->di_mode & IFMT) == IFDIR ||
201 (curfile.dip->di_mode & IFMT) == IFATTRDIR)) {
202 skipfile();
203 }
204 }
205
206 /*
207 * Recursively find names and inumbers of all files in subtree
208 * pname and pass them off to be processed.
209 */
210 void
treescan(char * pname,ino_t ino,long (* todo)())211 treescan(char *pname, ino_t ino, long (*todo)())
212 {
213 struct inotab *itp;
214 struct direct *dp;
215 uint_t loclen;
216 offset_t bpt;
217 char locname[MAXCOMPLEXLEN];
218
219 itp = inotablookup(ino);
220 if (itp == NULL) {
221 /*
222 * Pname is name of a simple file or an unchanged directory.
223 */
224 (void) (*todo)(pname, ino, LEAF);
225 return;
226 }
227 /*
228 * Pname is a dumped directory name.
229 */
230 if ((*todo)(pname, ino, NODE) == FAIL)
231 return;
232 /*
233 * begin search through the directory
234 * skipping over "." and ".."
235 */
236 loclen = complexcpy(locname, pname, MAXCOMPLEXLEN);
237 locname[loclen-1] = '/';
238 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
239 dp = rst_readdir(dirp); /* "." */
240
241 if (dp != NULL && strcmp(dp->d_name, ".") == 0)
242 dp = rst_readdir(dirp); /* ".." */
243 else
244 (void) fprintf(stderr,
245 gettext("Warning: `.' missing from directory %s\n"),
246 pname);
247 if (dp != NULL && strcmp(dp->d_name, "..") == 0)
248 dp = rst_readdir(dirp); /* first real entry */
249 else
250 (void) fprintf(stderr,
251 gettext("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 && dp->d_ino != 0) {
258 locname[loclen] = '\0';
259 if ((loclen + dp->d_namlen) >= (sizeof (locname) - 2)) {
260 (void) fprintf(stderr,
261 gettext(
262 "%s%s: ignoring name that exceeds %d char\n"),
263 locname, dp->d_name, MAXCOMPLEXLEN);
264 } else {
265 /* Always fits by if() condition */
266 (void) strcpy(locname + loclen, dp->d_name);
267 /* put a double null on string for lookupname() */
268 locname[loclen+dp->d_namlen+1] = '\0';
269 treescan(locname, dp->d_ino, todo);
270 rst_seekdir(dirp, bpt, itp->t_seekpt);
271 }
272 dp = rst_readdir(dirp);
273 bpt = rst_telldir(dirp);
274 }
275 if (dp == NULL)
276 (void) fprintf(stderr,
277 gettext("corrupted directory: %s.\n"), locname);
278 }
279
280 /*
281 * Scan the directory table looking for extended attribute trees.
282 * Recursively find names and inumbers in each tree and pass them
283 * off to be processed. If the always parameter is not set, only
284 * process the attribute tree if the attribute tree parent is to
285 * be extracted.
286 */
287 void
attrscan(int always,long (* todo)())288 attrscan(int always, long (*todo)())
289 {
290 struct inotab *itp;
291 struct entry *ep, *parent;
292 struct direct *dp;
293 char name[MAXCOMPLEXLEN];
294 int len;
295
296 for (itp = xattrlist; itp != NULL; itp = itp->t_xattr) {
297 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
298 if ((dp = rst_readdir(dirp)) != NULL && /* "." */
299 (dp = rst_readdir(dirp)) != NULL && /* ".." */
300 strcmp(dp->d_name, "..") == 0) {
301 if ((parent = lookupino(dp->d_ino)) != NULL) {
302 if (!always &&
303 (parent->e_flags & (NEW|EXTRACT)) == 0)
304 continue;
305 len = complexcpy(name, myname(parent),
306 MAXCOMPLEXLEN - 3);
307 name[len] = '.';
308 name[len+1] = '\0';
309 name[len+2] = '\0';
310 inattrspace = 1;
311 if ((ep = lookupino(itp->t_ino)) == NULL) {
312 ep = addentry(name, itp->t_ino,
313 NODE|ROOT);
314 }
315 ep->e_flags |= XATTRROOT;
316 treescan(name, itp->t_ino, todo);
317 inattrspace = 0;
318 } else {
319 (void) fprintf(stderr,
320 gettext("Warning: orphaned attribute "
321 "directory\n"));
322 }
323 } else {
324 (void) fprintf(stderr, gettext("Warning: `..' missing "
325 "from attribute directory\n"));
326 }
327 }
328 }
329
330 /*
331 * Search the directory tree rooted at inode ROOTINO
332 * for the path pointed at by n. Note that n must be
333 * modifiable, although it is returned in the same
334 * condition it was given to us in.
335 */
336 ino_t
psearch(char * n)337 psearch(char *n)
338 {
339 char *cp, *cp1;
340 ino_t ino;
341 char c;
342
343 ino = ROOTINO;
344 if (*(cp = n) == '/')
345 cp++;
346 next:
347 cp1 = cp + 1;
348 while (*cp1 != '/' && *cp1)
349 cp1++;
350 c = *cp1;
351 *cp1 = 0;
352 ino = search(ino, cp);
353 if (ino == 0) {
354 *cp1 = c;
355 return (0);
356 }
357 *cp1 = c;
358 if (c == '/') {
359 cp = cp1+1;
360 goto next;
361 }
362 return (ino);
363 }
364
365 /*
366 * search the directory inode ino
367 * looking for entry cp
368 */
369 static ino_t
search(ino_t inum,char * cp)370 search(ino_t inum, char *cp)
371 {
372 struct direct *dp;
373 struct inotab *itp;
374 uint_t len;
375
376 itp = inotablookup(inum);
377 if (itp == NULL)
378 return (0);
379 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
380 len = strlen(cp);
381 do {
382 dp = rst_readdir(dirp);
383 if (dp == NULL || dp->d_ino == 0)
384 return (0);
385 } while (dp->d_namlen != len || strncmp(dp->d_name, cp, len) != 0);
386 return (dp->d_ino);
387 }
388
389 /*
390 * Put the directory entries in the directory file
391 */
392 static void
putdir(char * buf,size_t size)393 putdir(char *buf, size_t size)
394 {
395 struct direct cvtbuf;
396 struct odirect *odp;
397 struct odirect *eodp;
398 struct direct *dp;
399 size_t loc, i;
400
401 if (cvtflag) {
402 /*LINTED [buf is char[] in getfile, size % fs_fsize == 0]*/
403 eodp = (struct odirect *)&buf[size];
404 /*LINTED [buf is char[] in getfile]*/
405 for (odp = (struct odirect *)buf; odp < eodp; odp++)
406 if (odp->d_ino != 0) {
407 dcvt(odp, &cvtbuf);
408 putent(&cvtbuf);
409 }
410 } else {
411 loc = 0;
412 while (loc < size) {
413 /*LINTED [buf is char[] in getfile, loc % 4 == 0]*/
414 dp = (struct direct *)(buf + loc);
415 normdirect(byteorder, dp);
416 i = DIRBLKSIZ - (loc & (DIRBLKSIZ - 1));
417 if (dp->d_reclen == 0 || (long)dp->d_reclen > i) {
418 loc += i;
419 continue;
420 }
421 loc += dp->d_reclen;
422 if (dp->d_ino != 0) {
423 putent(dp);
424 }
425 }
426 }
427 }
428
429 /*
430 * These variables are "local" to the following two functions.
431 */
432 static char dirbuf[DIRBLKSIZ];
433 static int32_t dirloc = 0;
434 static int32_t prev = 0;
435
436 /*
437 * add a new directory entry to a file.
438 */
439 static void
putent(struct direct * dp)440 putent(struct direct *dp)
441 {
442 /* LINTED DIRSIZ will always fit in a ushort_t */
443 dp->d_reclen = (ushort_t)DIRSIZ(dp);
444 /* LINTED sign extension ok in assert */
445 assert(DIRSIZ(dp) == (ulong_t)dp->d_reclen);
446 if (dirloc + (long)dp->d_reclen > DIRBLKSIZ) {
447 /*LINTED [prev += dp->d_reclen, prev % 4 == 0]*/
448 ((struct direct *)(dirbuf + prev))->d_reclen =
449 DIRBLKSIZ - prev;
450 (void) fwrite(dirbuf, 1, DIRBLKSIZ, df);
451 if (ferror(df))
452 panic("%s: %s\n", dirfile, strerror(errno));
453 dirloc = 0;
454 }
455 bcopy((char *)dp, dirbuf + dirloc, (size_t)dp->d_reclen);
456 prev = dirloc;
457 dirloc += dp->d_reclen;
458 }
459
460 /*
461 * flush out a directory that is finished.
462 */
463 static void
flushent(void)464 flushent(void)
465 {
466
467 /* LINTED prev += dp->d_reclen, prev % 4 == 0 */
468 ((struct direct *)(dirbuf + prev))->d_reclen = DIRBLKSIZ - prev;
469 (void) fwrite(dirbuf, (size_t)dirloc, 1, df);
470 if (ferror(df))
471 panic("%s: %s\n", dirfile, strerror(errno));
472 g_seekpt = ftello64(df);
473 dirloc = 0;
474 }
475
476 static void
dcvt(struct odirect * odp,struct direct * ndp)477 dcvt(struct odirect *odp, struct direct *ndp)
478 {
479
480 (void) bzero((char *)ndp, sizeof (*ndp));
481 ndp->d_ino = odp->d_ino;
482 /* Note that odp->d_name may not be null-terminated */
483 /* LINTED assertion always true */
484 assert(sizeof (ndp->d_name) > sizeof (odp->d_name));
485 (void) strncpy(ndp->d_name, odp->d_name, sizeof (odp->d_name));
486 ndp->d_name[sizeof (odp->d_name)] = '\0';
487 /* LINTED: strlen will fit into d_namlen */
488 ndp->d_namlen = strlen(ndp->d_name);
489
490 /* LINTED sign extension ok in assert */
491 assert(DIRSIZ(ndp) == (ulong_t)ndp->d_reclen);
492 /* LINTED DIRSIZ always fits in ushort_t */
493 ndp->d_reclen = (ushort_t)DIRSIZ(ndp);
494 }
495
496 /*
497 * Initialize the directory file
498 */
499 static RST_DIR *
rst_initdirfile(char * name)500 rst_initdirfile(char *name)
501 {
502 RST_DIR *dp;
503 int fd;
504
505 if ((fd = open(name, O_RDONLY | O_LARGEFILE)) == -1)
506 return ((RST_DIR *)0);
507 if ((dp = (RST_DIR *)malloc(sizeof (*dp))) == NULL) {
508 (void) close(fd);
509 return ((RST_DIR *)0);
510 }
511 dp->dd_fd = fd;
512 dp->dd_loc = 0;
513 dp->dd_refcnt = 1;
514 return (dp);
515 }
516
517 /*
518 * Simulate the opening of a directory
519 */
520 RST_DIR *
rst_opendir(char * name)521 rst_opendir(char *name)
522 {
523 struct inotab *itp;
524 ino_t ino;
525
526 if ((ino = dirlookup(name)) > 0 &&
527 (itp = inotablookup(ino)) != NULL) {
528 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
529 dirp->dd_refcnt++;
530 return (dirp);
531 }
532 return ((RST_DIR *)0);
533 }
534
535 /*
536 * Releases the hidden state created by rst_opendir().
537 * Specifically, the dirp it provided to the caller is malloc'd.
538 */
539 void
rst_closedir(RST_DIR * cdirp)540 rst_closedir(RST_DIR *cdirp)
541 {
542 if ((cdirp != NULL) && (--(cdirp->dd_refcnt) < 1))
543 free(cdirp);
544 }
545
546 /*
547 * return a pointer into a directory
548 */
549 static offset_t
rst_telldir(RST_DIR * tdirp)550 rst_telldir(RST_DIR *tdirp)
551 {
552 offset_t pos = llseek(tdirp->dd_fd, (offset_t)0, SEEK_CUR);
553
554 if (pos == (offset_t)-1) {
555 perror("Could not determine position in directory file");
556 done(1);
557 }
558
559 return ((pos - tdirp->dd_size) + tdirp->dd_loc);
560 }
561
562 /*
563 * Seek to an entry in a directory.
564 * Only values returned by ``rst_telldir'' should be passed to rst_seekdir.
565 * This routine handles many directories in a single file.
566 * It takes the base of the directory in the file, plus
567 * the desired seek offset into it.
568 */
569 static void
rst_seekdir(RST_DIR * sdirp,offset_t loc,offset_t base)570 rst_seekdir(RST_DIR *sdirp, offset_t loc, offset_t base)
571 {
572
573 if (loc == rst_telldir(sdirp))
574 return;
575 loc -= base;
576 if (loc < 0)
577 (void) fprintf(stderr,
578 gettext("bad seek pointer to rst_seekdir %d\n"), loc);
579 (void) llseek(sdirp->dd_fd, base + (loc & ~(DIRBLKSIZ - 1)), 0);
580 sdirp->dd_loc = loc & (DIRBLKSIZ - 1);
581 if (sdirp->dd_loc != 0)
582 sdirp->dd_size = read(sdirp->dd_fd, sdirp->dd_buf, DIRBLKSIZ);
583 }
584
585 /*
586 * get next entry in a directory.
587 */
588 struct direct *
rst_readdir(RST_DIR * rdirp)589 rst_readdir(RST_DIR *rdirp)
590 {
591 struct direct *dp;
592
593 for (;;) {
594 if (rdirp->dd_loc == 0) {
595 rdirp->dd_size = read(rdirp->dd_fd, rdirp->dd_buf,
596 DIRBLKSIZ);
597 if (rdirp->dd_size <= 0) {
598 dprintf(stderr,
599 gettext("error reading directory\n"));
600 return ((struct direct *)0);
601 }
602 }
603 if (rdirp->dd_loc >= rdirp->dd_size) {
604 rdirp->dd_loc = 0;
605 continue;
606 }
607 /*LINTED [rvalue will be aligned on int boundary]*/
608 dp = (struct direct *)(rdirp->dd_buf + rdirp->dd_loc);
609 if (dp->d_reclen == 0 ||
610 (long)dp->d_reclen > (DIRBLKSIZ + 1 - rdirp->dd_loc)) {
611 dprintf(stderr,
612 gettext("corrupted directory: bad reclen %d\n"),
613 dp->d_reclen);
614 return ((struct direct *)0);
615 }
616 rdirp->dd_loc += dp->d_reclen;
617 if (dp->d_ino == 0 && strcmp(dp->d_name, "/") != 0)
618 continue;
619 if ((ino_t)(dp->d_ino) >= maxino) {
620 dprintf(stderr,
621 gettext("corrupted directory: bad inum %lu\n"),
622 dp->d_ino);
623 continue;
624 }
625 return (dp);
626 }
627 }
628
629 /*
630 * Set the mode, owner, and times for all new or changed directories
631 */
632 void
setdirmodes(void)633 setdirmodes(void)
634 {
635 FILE *smf;
636 struct entry *ep;
637 char *cp, *metadata = NULL;
638 size_t metasize = 0;
639 int override = -1;
640 int saverr;
641 static int complained_chown = 0;
642 static int complained_chmod = 0;
643 int dfd;
644
645 vprintf(stdout, gettext("Set directory mode, owner, and times.\n"));
646 /* XXX if modefile[0] == '#', shouldn't we just bail here? */
647 /* XXX why isn't it set already? */
648 INIT_MODEFILE();
649 smf = fopen64(modefile, "r");
650 if (smf == NULL) {
651 perror("fopen");
652 (void) fprintf(stderr,
653 gettext("cannot open mode file %s\n"), modefile);
654 (void) fprintf(stderr,
655 gettext("directory mode, owner, and times not set\n"));
656 return;
657 }
658 clearerr(smf);
659 for (;;) {
660 (void) fread((char *)&node, 1, sizeof (node), smf);
661 if (feof(smf))
662 break;
663 ep = lookupino(node.ino);
664 if (command == 'i' || command == 'x') {
665 if (ep == NIL) {
666 skipmetadata(smf, node.metasize);
667 continue;
668 }
669 if (ep->e_flags & EXISTED) {
670 if (override < 0) {
671 if (reply(gettext(
672 "Directories already exist, set modes anyway"))
673 == FAIL)
674 override = 0;
675 else
676 override = 1;
677 }
678 if (override == 0) {
679 /* LINTED: result fits into short */
680 ep->e_flags &= ~NEW;
681 skipmetadata(smf, node.metasize);
682 continue;
683 }
684 }
685 if (node.ino == ROOTINO &&
686 reply(gettext("set owner/mode for '.'")) == FAIL) {
687 skipmetadata(smf, node.metasize);
688 continue;
689 }
690 }
691 if (ep == NIL) {
692 panic(gettext("cannot find directory inode %d\n"),
693 node.ino);
694 skipmetadata(smf, node.metasize);
695 continue;
696 }
697 cp = myname(ep);
698 resolve(myname(ep), &dfd, &cp);
699 if (dfd != AT_FDCWD) {
700 if (fchdir(dfd) < 0) {
701 saverr = errno;
702 (void) fprintf(stderr,
703 gettext("Can not set attribute context: %s\n"),
704 strerror(saverr));
705 (void) close(dfd);
706 continue;
707 }
708 }
709 if (chmod(cp, node.mode) < 0 && !complained_chmod) {
710 saverr = errno;
711 (void) fprintf(stderr,
712 gettext("Can not set directory permissions: %s\n"),
713 strerror(saverr));
714 complained_chmod = 1;
715 }
716 if (node.metasize != 0) {
717 if (node.metasize > metasize)
718 metadata = realloc(metadata,
719 metasize = node.metasize);
720 if (metadata == NULL) {
721 (void) fprintf(stderr,
722 gettext("Cannot malloc metadata\n"));
723 done(1);
724 }
725 (void) fread(metadata, 1, node.metasize, smf);
726 metaproc(cp, metadata, node.metasize);
727 }
728
729 /*
730 * BUG 4302943
731 * Since the ACLs must be set before fixing the ownership,
732 * chown should be called only after metaproc
733 */
734 if (chown(cp, node.uid, node.gid) < 0 && !complained_chown) {
735 saverr = errno;
736 (void) fprintf(stderr,
737 gettext("Can not set directory ownership: %s\n"),
738 strerror(saverr));
739 complained_chown = 1;
740 }
741 utime(cp, (struct utimbuf *)node.timep);
742 /* LINTED: result fits into short */
743 ep->e_flags &= ~NEW;
744 if (dfd != AT_FDCWD) {
745 fchdir(savepwd);
746 (void) close(dfd);
747 }
748 }
749 if (ferror(smf))
750 panic(gettext("error setting directory modes\n"));
751 if (metadata != NULL)
752 (void) free(metadata);
753 (void) fclose(smf);
754 }
755
756 void
skipmetadata(FILE * f,size_t size)757 skipmetadata(FILE *f, size_t size)
758 {
759 /* XXX should we bail if this doesn't work? */
760 /* LINTED unsigned -> signed conversion ok here */
761 (void) fseeko(f, (off_t)size, SEEK_CUR);
762 }
763
764 /*
765 * Generate a literal copy of a directory.
766 */
767 int
genliteraldir(char * name,ino_t ino)768 genliteraldir(char *name, ino_t ino)
769 {
770 struct inotab *itp;
771 int ofile, dp;
772 off64_t i;
773 size_t size;
774 char buf[BUFSIZ];
775
776 itp = inotablookup(ino);
777 if (itp == NULL) {
778 (void) fprintf(stderr,
779 gettext("Cannot find directory inode %d named %s\n"),
780 ino, name);
781 return (FAIL);
782 }
783 if ((ofile = creat(name, 0666)) < 0) {
784 (void) fprintf(stderr, "%s: ", name);
785 (void) fflush(stderr);
786 perror(gettext("cannot create file"));
787 return (FAIL);
788 }
789 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
790 dp = dup(dirp->dd_fd);
791 if (dp < 0) {
792 perror(gettext("dup(2) failed"));
793 (void) close(ofile);
794 (void) unlink(name);
795 return (FAIL);
796 }
797 for (i = itp->t_size; i != 0; i -= size) {
798 /* LINTED cast is safe due to comparison */
799 size = i < BUFSIZ ? (size_t)i : BUFSIZ;
800 /* XXX instead of done(), clean up and return FAIL? */
801 if (read(dp, buf, size) == -1) {
802 (void) fprintf(stderr, gettext(
803 "read error extracting inode %d, name %s\n"),
804 curfile.ino, curfile.name);
805 perror("read");
806 done(1);
807 }
808 if (write(ofile, buf, size) == -1) {
809 (void) fprintf(stderr, gettext(
810 "write error extracting inode %d, name %s\n"),
811 curfile.ino, curfile.name);
812 perror("write");
813 done(1);
814 }
815 }
816 (void) close(dp);
817 (void) close(ofile);
818 return (GOOD);
819 }
820
821 /*
822 * Determine the type of an inode
823 */
824 int
inodetype(ino_t ino)825 inodetype(ino_t ino)
826 {
827 struct inotab *itp;
828
829 itp = inotablookup(ino);
830 if (itp == NULL)
831 return (LEAF);
832 return (NODE);
833 }
834
835 /*
836 * Allocate and initialize a directory inode entry.
837 * If requested, save its pertinent mode, owner, and time info.
838 */
839 static struct inotab *
allocinotab(ino_t ino,struct dinode * dip,off64_t seekpt)840 allocinotab(ino_t ino, struct dinode *dip, off64_t seekpt)
841 {
842 struct inotab *itp;
843
844 itp = (struct inotab *)calloc(1, sizeof (*itp));
845 if (itp == 0) {
846 (void) fprintf(stderr,
847 gettext("no memory for directory table\n"));
848 done(1);
849 }
850 itp->t_next = inotab[INOHASH(ino)];
851 inotab[INOHASH(ino)] = itp;
852 itp->t_ino = ino;
853 itp->t_seekpt = seekpt;
854 if ((dip->di_mode & IFMT) == IFATTRDIR) {
855 itp->t_xattr = xattrlist;
856 xattrlist = itp;
857 }
858 if (mf == NULL)
859 return (itp);
860 node.ino = ino;
861 node.timep[0] = dip->di_atime;
862 node.timep[1] = dip->di_mtime;
863 node.mode = dip->di_mode;
864 node.uid =
865 dip->di_suid == UID_LONG ? dip->di_uid : (uid_t)dip->di_suid;
866 node.gid =
867 dip->di_sgid == GID_LONG ? dip->di_gid : (gid_t)dip->di_sgid;
868 return (itp);
869 }
870
871 void
nodeflush()872 nodeflush()
873 {
874 char *metadata;
875
876 if (mf == NULL) {
877 (void) fprintf(stderr, gettext(
878 "Inconsistency detected: modefile pointer is NULL\n"));
879 done(1);
880 }
881 metaget(&metadata, &(node.metasize));
882 (void) fwrite((char *)&node, 1, sizeof (node), mf);
883 if (node.metasize != 0)
884 (void) fwrite(metadata, 1, node.metasize, mf);
885 if (ferror(mf))
886 panic("%s: %s\n", modefile, strerror(errno));
887 }
888
889 /*
890 * Look up an inode in the table of directories
891 */
892 static struct inotab *
inotablookup(ino_t ino)893 inotablookup(ino_t ino)
894 {
895 struct inotab *itp;
896
897 for (itp = inotab[INOHASH(ino)]; itp != NULL; itp = itp->t_next)
898 if (itp->t_ino == ino)
899 return (itp);
900 return ((struct inotab *)0);
901 }
902
903 /*
904 * Clean up and exit
905 */
906 void
done(int exitcode)907 done(int exitcode)
908 {
909 closemt(ALLOW_OFFLINE); /* don't force offline on exit */
910 if (modefile[0] != '#')
911 (void) unlink(modefile);
912 if (dirfile[0] != '#')
913 (void) unlink(dirfile);
914 exit(exitcode);
915 }
916