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 #pragma ident "%Z%%M% %I% %E% SMI"
16
17 #include "restore.h"
18 #include <byteorder.h>
19 #include <stdlib.h>
20 #include <unistd.h>
21 #include <utime.h>
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 #ifdef __STDC__
82 static ino_t search(ino_t, char *);
83 static void putdir(char *, size_t);
84 static void putent(struct direct *);
85 static void skipmetadata(FILE *, size_t);
86 static void flushent(void);
87 static void dcvt(struct odirect *, struct direct *);
88 static RST_DIR *rst_initdirfile(char *);
89 static offset_t rst_telldir(RST_DIR *);
90 static void rst_seekdir(RST_DIR *, offset_t, offset_t);
91 static struct inotab *allocinotab(ino_t, struct dinode *, off64_t);
92 static void nodeflush(void);
93 static struct inotab *inotablookup(ino_t);
94 #else
95 static ino_t search();
96 static void putdir();
97 static void putent();
98 static void skipmetadata();
99 static void flushent();
100 static void dcvt();
101 static RST_DIR *rst_initdirfile();
102 static offset_t rst_telldir();
103 static void rst_seekdir();
104 static struct inotab *allocinotab();
105 static void nodeflush();
106 static struct inotab *inotablookup();
107 #endif
108
109 /*
110 * Extract directory contents, building up a directory structure
111 * on disk for extraction by name.
112 * If genmode is requested, save mode, owner, and times for all
113 * directories on the tape.
114 */
115 void
extractdirs(int genmode)116 extractdirs(int genmode)
117 {
118 int ts;
119 struct dinode *ip;
120 int saverr;
121 struct inotab *itp;
122 struct direct nulldir;
123 static char dotname[] = "."; /* dirlookup/psearch writes to its arg */
124
125 vprintf(stdout, gettext("Extract directories from tape\n"));
126 INIT_DIRFILE();
127 if ((df = safe_fopen(dirfile, "w", 0600)) == (FILE *)NULL) {
128 saverr = errno;
129 (void) fprintf(stderr,
130 gettext("%s: %s - cannot create directory temporary\n"),
131 progname, dirfile);
132 errno = saverr;
133 perror("fopen");
134 done(1);
135 }
136 if (genmode != 0) {
137 INIT_MODEFILE();
138 if ((mf = safe_fopen(modefile, "w", 0600)) == (FILE *)NULL) {
139 saverr = errno;
140 (void) fprintf(stderr,
141 gettext("%s: %s - cannot create modefile \n"),
142 progname, modefile);
143 errno = saverr;
144 perror("fopen");
145 done(1);
146 }
147 }
148 nulldir.d_ino = 0;
149 nulldir.d_namlen = 1;
150 (void) strcpy(nulldir.d_name, "/");
151 /* LINTED DIRSIZ will always fit into a ushort_t */
152 nulldir.d_reclen = (ushort_t)DIRSIZ(&nulldir);
153 /* LINTED sign extension ok in assert */
154 assert(DIRSIZ(&nulldir) == (ulong_t)nulldir.d_reclen);
155 for (;;) {
156 curfile.name = gettext("<directory file - name unknown>");
157 curfile.action = USING;
158 ip = curfile.dip;
159 ts = curfile.ts;
160 if (ts != TS_END && ts != TS_INODE) {
161 getfile(null, null);
162 continue;
163 }
164 if (ts == TS_INODE && ip == NULL) {
165 (void) fprintf(stderr, gettext(
166 "%s: extractdirs: Failed internal consistency check, curfile.dip is NULL\n"),
167 progname);
168 done(1);
169 }
170 if ((ts == TS_INODE && (ip->di_mode & IFMT) != IFDIR &&
171 (ip->di_mode & IFMT) != IFATTRDIR) ||
172 (ts == TS_END)) {
173 (void) fflush(df);
174 /* XXX Legitimate error, bad complaint string */
175 if (ferror(df))
176 panic("%s: %s\n", dirfile, strerror(errno));
177 (void) fclose(df);
178 rst_closedir(dirp);
179 dirp = rst_initdirfile(dirfile);
180 if (dirp == NULL)
181 perror("initdirfile");
182 if (mf != NULL) {
183 (void) fflush(mf);
184 /* XXX Legitimate error, bad complaint string */
185 if (ferror(mf))
186 panic("%s: %s\n",
187 modefile, strerror(errno));
188 (void) fclose(mf);
189 }
190 if (dirlookup(dotname) == 0) {
191 (void) fprintf(stderr, gettext(
192 "Root directory is not on tape\n"));
193 done(1);
194 }
195 return;
196 }
197 itp = allocinotab(curfile.ino, ip, g_seekpt);
198 getfile(putdir, null);
199 if (mf != NULL)
200 nodeflush();
201
202 putent(&nulldir);
203 flushent();
204 itp->t_size = g_seekpt - itp->t_seekpt;
205 }
206 }
207
208 /*
209 * skip over all the directories on the tape
210 */
211 void
skipdirs()212 skipdirs()
213 {
214 while (curfile.dip != NULL &&
215 ((curfile.dip->di_mode & IFMT) == IFDIR ||
216 (curfile.dip->di_mode & IFMT) == IFATTRDIR)) {
217 skipfile();
218 }
219 }
220
221 /*
222 * Recursively find names and inumbers of all files in subtree
223 * pname and pass them off to be processed.
224 */
225 void
treescan(char * pname,ino_t ino,long (* todo)())226 treescan(char *pname, ino_t ino, long (*todo)())
227 {
228 struct inotab *itp;
229 struct direct *dp;
230 uint_t loclen;
231 offset_t bpt;
232 char locname[MAXCOMPLEXLEN];
233
234 itp = inotablookup(ino);
235 if (itp == NULL) {
236 /*
237 * Pname is name of a simple file or an unchanged directory.
238 */
239 (void) (*todo)(pname, ino, LEAF);
240 return;
241 }
242 /*
243 * Pname is a dumped directory name.
244 */
245 if ((*todo)(pname, ino, NODE) == FAIL)
246 return;
247 /*
248 * begin search through the directory
249 * skipping over "." and ".."
250 */
251 loclen = complexcpy(locname, pname, MAXCOMPLEXLEN);
252 locname[loclen-1] = '/';
253 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
254 dp = rst_readdir(dirp); /* "." */
255
256 if (dp != NULL && strcmp(dp->d_name, ".") == 0)
257 dp = rst_readdir(dirp); /* ".." */
258 else
259 (void) fprintf(stderr,
260 gettext("Warning: `.' missing from directory %s\n"),
261 pname);
262 if (dp != NULL && strcmp(dp->d_name, "..") == 0)
263 dp = rst_readdir(dirp); /* first real entry */
264 else
265 (void) fprintf(stderr,
266 gettext("Warning: `..' missing from directory %s\n"),
267 pname);
268 bpt = rst_telldir(dirp);
269 /*
270 * a zero inode signals end of directory
271 */
272 while (dp != NULL && dp->d_ino != 0) {
273 locname[loclen] = '\0';
274 if ((loclen + dp->d_namlen) >= (sizeof (locname) - 2)) {
275 (void) fprintf(stderr,
276 gettext(
277 "%s%s: ignoring name that exceeds %d char\n"),
278 locname, dp->d_name, MAXCOMPLEXLEN);
279 } else {
280 /* Always fits by if() condition */
281 (void) strcpy(locname + loclen, dp->d_name);
282 /* put a double null on string for lookupname() */
283 locname[loclen+dp->d_namlen+1] = '\0';
284 treescan(locname, dp->d_ino, todo);
285 rst_seekdir(dirp, bpt, itp->t_seekpt);
286 }
287 dp = rst_readdir(dirp);
288 bpt = rst_telldir(dirp);
289 }
290 if (dp == NULL)
291 (void) fprintf(stderr,
292 gettext("corrupted directory: %s.\n"), locname);
293 }
294
295 /*
296 * Scan the directory table looking for extended attribute trees.
297 * Recursively find names and inumbers in each tree and pass them
298 * off to be processed. If the always parameter is not set, only
299 * process the attribute tree if the attribute tree parent is to
300 * be extracted.
301 */
302 void
attrscan(int always,long (* todo)())303 attrscan(int always, long (*todo)())
304 {
305 struct inotab *itp;
306 struct entry *ep, *parent;
307 struct direct *dp;
308 char name[MAXCOMPLEXLEN];
309 int len;
310
311 for (itp = xattrlist; itp != NULL; itp = itp->t_xattr) {
312 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
313 if ((dp = rst_readdir(dirp)) != NULL && /* "." */
314 (dp = rst_readdir(dirp)) != NULL && /* ".." */
315 strcmp(dp->d_name, "..") == 0) {
316 if ((parent = lookupino(dp->d_ino)) != NULL) {
317 if (!always &&
318 (parent->e_flags & (NEW|EXTRACT)) == 0)
319 continue;
320 len = complexcpy(name, myname(parent),
321 MAXCOMPLEXLEN - 3);
322 name[len] = '.';
323 name[len+1] = '\0';
324 name[len+2] = '\0';
325 inattrspace = 1;
326 if ((ep = lookupino(itp->t_ino)) == NULL) {
327 ep = addentry(name, itp->t_ino,
328 NODE|ROOT);
329 }
330 ep->e_flags |= XATTRROOT;
331 treescan(name, itp->t_ino, todo);
332 inattrspace = 0;
333 } else {
334 (void) fprintf(stderr,
335 gettext("Warning: orphaned attribute directory\n"));
336 }
337 } else {
338 (void) fprintf(stderr,
339 gettext("Warning: `..' missing from attribute directory\n"));
340 }
341 }
342 }
343
344 /*
345 * Search the directory tree rooted at inode ROOTINO
346 * for the path pointed at by n. Note that n must be
347 * modifiable, although it is returned in the same
348 * condition it was given to us in.
349 */
350 ino_t
psearch(char * n)351 psearch(char *n)
352 {
353 char *cp, *cp1;
354 ino_t ino;
355 char c;
356
357 ino = ROOTINO;
358 if (*(cp = n) == '/')
359 cp++;
360 next:
361 cp1 = cp + 1;
362 while (*cp1 != '/' && *cp1)
363 cp1++;
364 c = *cp1;
365 *cp1 = 0;
366 ino = search(ino, cp);
367 if (ino == 0) {
368 *cp1 = c;
369 return (0);
370 }
371 *cp1 = c;
372 if (c == '/') {
373 cp = cp1+1;
374 goto next;
375 }
376 return (ino);
377 }
378
379 /*
380 * search the directory inode ino
381 * looking for entry cp
382 */
383 static ino_t
search(ino_t inum,char * cp)384 search(ino_t inum, char *cp)
385 {
386 struct direct *dp;
387 struct inotab *itp;
388 uint_t len;
389
390 itp = inotablookup(inum);
391 if (itp == NULL)
392 return (0);
393 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
394 len = strlen(cp);
395 do {
396 dp = rst_readdir(dirp);
397 if (dp == NULL || dp->d_ino == 0)
398 return (0);
399 } while (dp->d_namlen != len || strncmp(dp->d_name, cp, len) != 0);
400 return (dp->d_ino);
401 }
402
403 /*
404 * Put the directory entries in the directory file
405 */
406 static void
putdir(char * buf,size_t size)407 putdir(char *buf, size_t size)
408 {
409 struct direct cvtbuf;
410 struct odirect *odp;
411 struct odirect *eodp;
412 struct direct *dp;
413 size_t loc, i;
414
415 if (cvtflag) {
416 /*LINTED [buf is char[] in getfile, size % fs_fsize == 0]*/
417 eodp = (struct odirect *)&buf[size];
418 /*LINTED [buf is char[] in getfile]*/
419 for (odp = (struct odirect *)buf; odp < eodp; odp++)
420 if (odp->d_ino != 0) {
421 dcvt(odp, &cvtbuf);
422 putent(&cvtbuf);
423 }
424 } else {
425 loc = 0;
426 while (loc < size) {
427 /*LINTED [buf is char[] in getfile, loc % 4 == 0]*/
428 dp = (struct direct *)(buf + loc);
429 normdirect(byteorder, dp);
430 i = DIRBLKSIZ - (loc & (DIRBLKSIZ - 1));
431 if (dp->d_reclen == 0 || (long)dp->d_reclen > i) {
432 loc += i;
433 continue;
434 }
435 loc += dp->d_reclen;
436 if (dp->d_ino != 0) {
437 putent(dp);
438 }
439 }
440 }
441 }
442
443 /*
444 * These variables are "local" to the following two functions.
445 */
446 static char dirbuf[DIRBLKSIZ];
447 static int32_t dirloc = 0;
448 static int32_t prev = 0;
449
450 /*
451 * add a new directory entry to a file.
452 */
453 static void
putent(struct direct * dp)454 putent(struct direct *dp)
455 {
456 /* LINTED DIRSIZ will always fit in a ushort_t */
457 dp->d_reclen = (ushort_t)DIRSIZ(dp);
458 /* LINTED sign extension ok in assert */
459 assert(DIRSIZ(dp) == (ulong_t)dp->d_reclen);
460 if (dirloc + (long)dp->d_reclen > DIRBLKSIZ) {
461 /*LINTED [prev += dp->d_reclen, prev % 4 == 0]*/
462 ((struct direct *)(dirbuf + prev))->d_reclen =
463 DIRBLKSIZ - prev;
464 (void) fwrite(dirbuf, 1, DIRBLKSIZ, df);
465 if (ferror(df))
466 panic("%s: %s\n", dirfile, strerror(errno));
467 dirloc = 0;
468 }
469 bcopy((char *)dp, dirbuf + dirloc, (size_t)dp->d_reclen);
470 prev = dirloc;
471 dirloc += dp->d_reclen;
472 }
473
474 /*
475 * flush out a directory that is finished.
476 */
477 static void
478 #ifdef __STDC__
flushent(void)479 flushent(void)
480 #else
481 flushent()
482 #endif
483 {
484
485 /* LINTED prev += dp->d_reclen, prev % 4 == 0 */
486 ((struct direct *)(dirbuf + prev))->d_reclen = DIRBLKSIZ - prev;
487 (void) fwrite(dirbuf, (size_t)dirloc, 1, df);
488 if (ferror(df))
489 panic("%s: %s\n", dirfile, strerror(errno));
490 g_seekpt = ftello64(df);
491 dirloc = 0;
492 }
493
494 static void
dcvt(struct odirect * odp,struct direct * ndp)495 dcvt(struct odirect *odp, struct direct *ndp)
496 {
497
498 (void) bzero((char *)ndp, sizeof (*ndp));
499 ndp->d_ino = odp->d_ino;
500 /* Note that odp->d_name may not be null-terminated */
501 /* LINTED assertion always true */
502 assert(sizeof (ndp->d_name) > sizeof (odp->d_name));
503 (void) strncpy(ndp->d_name, odp->d_name, sizeof (odp->d_name));
504 ndp->d_name[sizeof (odp->d_name)] = '\0';
505 /* LINTED: strlen will fit into d_namlen */
506 ndp->d_namlen = strlen(ndp->d_name);
507
508 /* LINTED sign extension ok in assert */
509 assert(DIRSIZ(ndp) == (ulong_t)ndp->d_reclen);
510 /* LINTED DIRSIZ always fits in ushort_t */
511 ndp->d_reclen = (ushort_t)DIRSIZ(ndp);
512 }
513
514 /*
515 * Initialize the directory file
516 */
517 static RST_DIR *
rst_initdirfile(char * name)518 rst_initdirfile(char *name)
519 {
520 RST_DIR *dp;
521 int fd;
522
523 if ((fd = open(name, O_RDONLY | O_LARGEFILE)) == -1)
524 return ((RST_DIR *)0);
525 if ((dp = (RST_DIR *)malloc(sizeof (*dp))) == NULL) {
526 (void) close(fd);
527 return ((RST_DIR *)0);
528 }
529 dp->dd_fd = fd;
530 dp->dd_loc = 0;
531 dp->dd_refcnt = 1;
532 return (dp);
533 }
534
535 /*
536 * Simulate the opening of a directory
537 */
538 RST_DIR *
rst_opendir(char * name)539 rst_opendir(char *name)
540 {
541 struct inotab *itp;
542 ino_t ino;
543
544 if ((ino = dirlookup(name)) > 0 &&
545 (itp = inotablookup(ino)) != NULL) {
546 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
547 dirp->dd_refcnt++;
548 return (dirp);
549 }
550 return ((RST_DIR *)0);
551 }
552
553 /*
554 * Releases the hidden state created by rst_opendir().
555 * Specifically, the dirp it provided to the caller is malloc'd.
556 */
557 void
rst_closedir(RST_DIR * cdirp)558 rst_closedir(RST_DIR *cdirp)
559 {
560 if ((cdirp != NULL) && (--(cdirp->dd_refcnt) < 1))
561 free(cdirp);
562 }
563
564 /*
565 * return a pointer into a directory
566 */
567 static offset_t
rst_telldir(RST_DIR * tdirp)568 rst_telldir(RST_DIR *tdirp)
569 {
570 offset_t pos = llseek(tdirp->dd_fd, (offset_t)0, SEEK_CUR);
571
572 if (pos == (offset_t)-1) {
573 perror("Could not determine position in directory file");
574 done(1);
575 }
576
577 return ((pos - tdirp->dd_size) + tdirp->dd_loc);
578 }
579
580 /*
581 * Seek to an entry in a directory.
582 * Only values returned by ``rst_telldir'' should be passed to rst_seekdir.
583 * This routine handles many directories in a single file.
584 * It takes the base of the directory in the file, plus
585 * the desired seek offset into it.
586 */
587 static void
rst_seekdir(RST_DIR * sdirp,offset_t loc,offset_t base)588 rst_seekdir(RST_DIR *sdirp, offset_t loc, offset_t base)
589 {
590
591 if (loc == rst_telldir(sdirp))
592 return;
593 loc -= base;
594 if (loc < 0)
595 (void) fprintf(stderr,
596 gettext("bad seek pointer to rst_seekdir %d\n"), loc);
597 (void) llseek(sdirp->dd_fd, base + (loc & ~(DIRBLKSIZ - 1)), 0);
598 sdirp->dd_loc = loc & (DIRBLKSIZ - 1);
599 if (sdirp->dd_loc != 0)
600 sdirp->dd_size = read(sdirp->dd_fd, sdirp->dd_buf, DIRBLKSIZ);
601 }
602
603 /*
604 * get next entry in a directory.
605 */
606 struct direct *
rst_readdir(RST_DIR * rdirp)607 rst_readdir(RST_DIR *rdirp)
608 {
609 struct direct *dp;
610
611 for (;;) {
612 if (rdirp->dd_loc == 0) {
613 rdirp->dd_size = read(rdirp->dd_fd, rdirp->dd_buf,
614 DIRBLKSIZ);
615 if (rdirp->dd_size <= 0) {
616 dprintf(stderr,
617 gettext("error reading directory\n"));
618 return ((struct direct *)0);
619 }
620 }
621 if (rdirp->dd_loc >= rdirp->dd_size) {
622 rdirp->dd_loc = 0;
623 continue;
624 }
625 /*LINTED [rvalue will be aligned on int boundary]*/
626 dp = (struct direct *)(rdirp->dd_buf + rdirp->dd_loc);
627 if (dp->d_reclen == 0 ||
628 (long)dp->d_reclen > (DIRBLKSIZ + 1 - rdirp->dd_loc)) {
629 dprintf(stderr,
630 gettext("corrupted directory: bad reclen %d\n"),
631 dp->d_reclen);
632 return ((struct direct *)0);
633 }
634 rdirp->dd_loc += dp->d_reclen;
635 if (dp->d_ino == 0 && strcmp(dp->d_name, "/") != 0)
636 continue;
637 if ((ino_t)(dp->d_ino) >= maxino) {
638 dprintf(stderr,
639 gettext("corrupted directory: bad inum %lu\n"),
640 dp->d_ino);
641 continue;
642 }
643 return (dp);
644 }
645 }
646
647 /*
648 * Set the mode, owner, and times for all new or changed directories
649 */
650 void
651 #ifdef __STDC__
setdirmodes(void)652 setdirmodes(void)
653 #else
654 setdirmodes()
655 #endif
656 {
657 FILE *smf;
658 struct entry *ep;
659 char *cp, *metadata = NULL;
660 size_t metasize = 0;
661 int override = -1;
662 int saverr;
663 static int complained_chown = 0;
664 static int complained_chmod = 0;
665 int dfd;
666
667 vprintf(stdout, gettext("Set directory mode, owner, and times.\n"));
668 /* XXX if modefile[0] == '#', shouldn't we just bail here? */
669 /* XXX why isn't it set already? */
670 INIT_MODEFILE();
671 smf = fopen64(modefile, "r");
672 if (smf == NULL) {
673 perror("fopen");
674 (void) fprintf(stderr,
675 gettext("cannot open mode file %s\n"), modefile);
676 (void) fprintf(stderr,
677 gettext("directory mode, owner, and times not set\n"));
678 return;
679 }
680 clearerr(smf);
681 for (;;) {
682 (void) fread((char *)&node, 1, sizeof (node), smf);
683 if (feof(smf))
684 break;
685 ep = lookupino(node.ino);
686 if (command == 'i' || command == 'x') {
687 if (ep == NIL) {
688 skipmetadata(smf, node.metasize);
689 continue;
690 }
691 if (ep->e_flags & EXISTED) {
692 if (override < 0) {
693 if (reply(gettext(
694 "Directories already exist, set modes anyway"))
695 == FAIL)
696 override = 0;
697 else
698 override = 1;
699 }
700 if (override == 0) {
701 /* LINTED: result fits into short */
702 ep->e_flags &= ~NEW;
703 skipmetadata(smf, node.metasize);
704 continue;
705 }
706 }
707 if (node.ino == ROOTINO &&
708 reply(gettext("set owner/mode for '.'")) == FAIL) {
709 skipmetadata(smf, node.metasize);
710 continue;
711 }
712 }
713 if (ep == NIL) {
714 panic(gettext("cannot find directory inode %d\n"),
715 node.ino);
716 skipmetadata(smf, node.metasize);
717 continue;
718 }
719 cp = myname(ep);
720 resolve(myname(ep), &dfd, &cp);
721 if (dfd != AT_FDCWD) {
722 if (fchdir(dfd) < 0) {
723 saverr = errno;
724 (void) fprintf(stderr,
725 gettext("Can not set attribute context: %s\n"),
726 strerror(saverr));
727 (void) close(dfd);
728 continue;
729 }
730 }
731 if (chmod(cp, node.mode) < 0 && !complained_chmod) {
732 saverr = errno;
733 (void) fprintf(stderr,
734 gettext("Can not set directory permissions: %s\n"),
735 strerror(saverr));
736 complained_chmod = 1;
737 }
738 if (node.metasize != 0) {
739 if (node.metasize > metasize)
740 metadata = realloc(metadata,
741 metasize = node.metasize);
742 if (metadata == NULL) {
743 (void) fprintf(stderr,
744 gettext("Cannot malloc metadata\n"));
745 done(1);
746 }
747 (void) fread(metadata, 1, node.metasize, smf);
748 metaproc(cp, metadata, node.metasize);
749 }
750
751 /*
752 * BUG 4302943
753 * Since the ACLs must be set before fixing the ownership,
754 * chown should be called only after metaproc
755 */
756 if (chown(cp, node.uid, node.gid) < 0 && !complained_chown) {
757 saverr = errno;
758 (void) fprintf(stderr,
759 gettext("Can not set directory ownership: %s\n"),
760 strerror(saverr));
761 complained_chown = 1;
762 }
763 utime(cp, (struct utimbuf *)node.timep);
764 /* LINTED: result fits into short */
765 ep->e_flags &= ~NEW;
766 if (dfd != AT_FDCWD) {
767 fchdir(savepwd);
768 (void) close(dfd);
769 }
770 }
771 if (ferror(smf))
772 panic(gettext("error setting directory modes\n"));
773 if (metadata != NULL)
774 (void) free(metadata);
775 (void) fclose(smf);
776 }
777
778 void
skipmetadata(FILE * f,size_t size)779 skipmetadata(FILE *f, size_t size)
780 {
781 /* XXX should we bail if this doesn't work? */
782 /* LINTED unsigned -> signed conversion ok here */
783 (void) fseeko(f, (off_t)size, SEEK_CUR);
784 }
785
786 /*
787 * Generate a literal copy of a directory.
788 */
789 int
genliteraldir(char * name,ino_t ino)790 genliteraldir(char *name, ino_t ino)
791 {
792 struct inotab *itp;
793 int ofile, dp;
794 off64_t i;
795 size_t size;
796 char buf[BUFSIZ];
797
798 itp = inotablookup(ino);
799 if (itp == NULL) {
800 (void) fprintf(stderr,
801 gettext("Cannot find directory inode %d named %s\n"),
802 ino, name);
803 return (FAIL);
804 }
805 if ((ofile = creat(name, 0666)) < 0) {
806 (void) fprintf(stderr, "%s: ", name);
807 (void) fflush(stderr);
808 perror(gettext("cannot create file"));
809 return (FAIL);
810 }
811 rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt);
812 dp = dup(dirp->dd_fd);
813 if (dp < 0) {
814 perror(gettext("dup(2) failed"));
815 (void) close(ofile);
816 (void) unlink(name);
817 return (FAIL);
818 }
819 for (i = itp->t_size; i != 0; i -= size) {
820 /* LINTED cast is safe due to comparison */
821 size = i < BUFSIZ ? (size_t)i : BUFSIZ;
822 /* XXX instead of done(), clean up and return FAIL? */
823 if (read(dp, buf, size) == -1) {
824 (void) fprintf(stderr, gettext(
825 "read error extracting inode %d, name %s\n"),
826 curfile.ino, curfile.name);
827 perror("read");
828 done(1);
829 }
830 if (write(ofile, buf, size) == -1) {
831 (void) fprintf(stderr, gettext(
832 "write error extracting inode %d, name %s\n"),
833 curfile.ino, curfile.name);
834 perror("write");
835 done(1);
836 }
837 }
838 (void) close(dp);
839 (void) close(ofile);
840 return (GOOD);
841 }
842
843 /*
844 * Determine the type of an inode
845 */
846 int
inodetype(ino_t ino)847 inodetype(ino_t ino)
848 {
849 struct inotab *itp;
850
851 itp = inotablookup(ino);
852 if (itp == NULL)
853 return (LEAF);
854 return (NODE);
855 }
856
857 /*
858 * Allocate and initialize a directory inode entry.
859 * If requested, save its pertinent mode, owner, and time info.
860 */
861 static struct inotab *
allocinotab(ino_t ino,struct dinode * dip,off64_t seekpt)862 allocinotab(ino_t ino, struct dinode *dip, off64_t seekpt)
863 {
864 struct inotab *itp;
865
866 itp = (struct inotab *)calloc(1, sizeof (*itp));
867 if (itp == 0) {
868 (void) fprintf(stderr,
869 gettext("no memory for directory table\n"));
870 done(1);
871 }
872 itp->t_next = inotab[INOHASH(ino)];
873 inotab[INOHASH(ino)] = itp;
874 itp->t_ino = ino;
875 itp->t_seekpt = seekpt;
876 if ((dip->di_mode & IFMT) == IFATTRDIR) {
877 itp->t_xattr = xattrlist;
878 xattrlist = itp;
879 }
880 if (mf == NULL)
881 return (itp);
882 node.ino = ino;
883 node.timep[0] = dip->di_atime;
884 node.timep[1] = dip->di_mtime;
885 node.mode = dip->di_mode;
886 node.uid =
887 dip->di_suid == UID_LONG ? dip->di_uid : (uid_t)dip->di_suid;
888 node.gid =
889 dip->di_sgid == GID_LONG ? dip->di_gid : (gid_t)dip->di_sgid;
890 return (itp);
891 }
892
893 void
nodeflush()894 nodeflush()
895 {
896 char *metadata;
897
898 if (mf == NULL) {
899 (void) fprintf(stderr, gettext(
900 "Inconsistency detected: modefile pointer is NULL\n"));
901 done(1);
902 }
903 metaget(&metadata, &(node.metasize));
904 (void) fwrite((char *)&node, 1, sizeof (node), mf);
905 if (node.metasize != 0)
906 (void) fwrite(metadata, 1, node.metasize, mf);
907 if (ferror(mf))
908 panic("%s: %s\n", modefile, strerror(errno));
909 }
910
911 /*
912 * Look up an inode in the table of directories
913 */
914 static struct inotab *
inotablookup(ino_t ino)915 inotablookup(ino_t ino)
916 {
917 struct inotab *itp;
918
919 for (itp = inotab[INOHASH(ino)]; itp != NULL; itp = itp->t_next)
920 if (itp->t_ino == ino)
921 return (itp);
922 return ((struct inotab *)0);
923 }
924
925 /*
926 * Clean up and exit
927 */
928 void
done(int exitcode)929 done(int exitcode)
930 {
931 closemt(ALLOW_OFFLINE); /* don't force offline on exit */
932 if (modefile[0] != '#')
933 (void) unlink(modefile);
934 if (dirfile[0] != '#')
935 (void) unlink(dirfile);
936 exit(exitcode);
937 }
938