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40d03e52 WJ |
1 | /* |
2 | * Copyright (c) 1983 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by the University of | |
16 | * California, Berkeley and its contributors. | |
17 | * 4. Neither the name of the University nor the names of its contributors | |
18 | * may be used to endorse or promote products derived from this software | |
19 | * without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
31 | * SUCH DAMAGE. | |
32 | */ | |
33 | ||
34 | #ifndef lint | |
35 | static char sccsid[] = "@(#)dirs.c 5.15 (Berkeley) 2/26/91"; | |
36 | #endif /* not lint */ | |
37 | ||
38 | #include "restore.h" | |
39 | #include <protocols/dumprestore.h> | |
40 | #include <sys/file.h> | |
41 | #include <ufs/dir.h> | |
42 | #include "pathnames.h" | |
43 | ||
44 | /* | |
45 | * Symbol table of directories read from tape. | |
46 | */ | |
47 | #define HASHSIZE 1000 | |
48 | #define INOHASH(val) (val % HASHSIZE) | |
49 | struct inotab { | |
50 | struct inotab *t_next; | |
51 | ino_t t_ino; | |
52 | daddr_t t_seekpt; | |
53 | long t_size; | |
54 | }; | |
55 | static struct inotab *inotab[HASHSIZE]; | |
56 | extern struct inotab *inotablookup(); | |
57 | extern struct inotab *allocinotab(); | |
58 | ||
59 | /* | |
60 | * Information retained about directories. | |
61 | */ | |
62 | struct modeinfo { | |
63 | ino_t ino; | |
64 | struct timeval timep[2]; | |
65 | short mode; | |
66 | short uid; | |
67 | short gid; | |
68 | }; | |
69 | ||
70 | /* | |
71 | * Definitions for library routines operating on directories. | |
72 | */ | |
73 | #undef DIRBLKSIZ | |
74 | #define DIRBLKSIZ 1024 | |
75 | struct dirdesc { | |
76 | int dd_fd; | |
77 | long dd_loc; | |
78 | long dd_size; | |
79 | char dd_buf[DIRBLKSIZ]; | |
80 | }; | |
81 | extern DIR *opendirfile(); | |
82 | extern off_t rst_telldir(); | |
83 | extern void rst_seekdir(); | |
84 | ||
85 | /* | |
86 | * Global variables for this file. | |
87 | */ | |
88 | static daddr_t seekpt; | |
89 | static FILE *df, *mf; | |
90 | static DIR *dirp; | |
91 | static char dirfile[32] = "#"; /* No file */ | |
92 | static char modefile[32] = "#"; /* No file */ | |
93 | static char dot[2] = "."; /* So it can be modified */ | |
94 | extern ino_t search(); | |
95 | struct direct *rst_readdir(); | |
96 | extern void rst_seekdir(); | |
97 | ||
98 | /* | |
99 | * Format of old style directories. | |
100 | */ | |
101 | #define ODIRSIZ 14 | |
102 | struct odirect { | |
103 | u_short d_ino; | |
104 | char d_name[ODIRSIZ]; | |
105 | }; | |
106 | ||
107 | /* | |
108 | * Extract directory contents, building up a directory structure | |
109 | * on disk for extraction by name. | |
110 | * If genmode is requested, save mode, owner, and times for all | |
111 | * directories on the tape. | |
112 | */ | |
113 | extractdirs(genmode) | |
114 | int genmode; | |
115 | { | |
116 | register int i; | |
117 | register struct dinode *ip; | |
118 | struct inotab *itp; | |
119 | struct direct nulldir; | |
120 | int putdir(), null(); | |
121 | ||
122 | vprintf(stdout, "Extract directories from tape\n"); | |
123 | (void) sprintf(dirfile, "%s/rstdir%d", _PATH_TMP, dumpdate); | |
124 | df = fopen(dirfile, "w"); | |
125 | if (df == 0) { | |
126 | fprintf(stderr, | |
127 | "restore: %s - cannot create directory temporary\n", | |
128 | dirfile); | |
129 | perror("fopen"); | |
130 | done(1); | |
131 | } | |
132 | if (genmode != 0) { | |
133 | (void) sprintf(modefile, "%s/rstmode%d", _PATH_TMP, dumpdate); | |
134 | mf = fopen(modefile, "w"); | |
135 | if (mf == 0) { | |
136 | fprintf(stderr, | |
137 | "restore: %s - cannot create modefile \n", | |
138 | modefile); | |
139 | perror("fopen"); | |
140 | done(1); | |
141 | } | |
142 | } | |
143 | nulldir.d_ino = 0; | |
144 | nulldir.d_namlen = 1; | |
145 | (void) strcpy(nulldir.d_name, "/"); | |
146 | nulldir.d_reclen = DIRSIZ(&nulldir); | |
147 | for (;;) { | |
148 | curfile.name = "<directory file - name unknown>"; | |
149 | curfile.action = USING; | |
150 | ip = curfile.dip; | |
151 | if (ip == NULL || (ip->di_mode & IFMT) != IFDIR) { | |
152 | (void) fclose(df); | |
153 | dirp = opendirfile(dirfile); | |
154 | if (dirp == NULL) | |
155 | perror("opendirfile"); | |
156 | if (mf != NULL) | |
157 | (void) fclose(mf); | |
158 | i = dirlookup(dot); | |
159 | if (i == 0) | |
160 | panic("Root directory is not on tape\n"); | |
161 | return; | |
162 | } | |
163 | itp = allocinotab(curfile.ino, ip, seekpt); | |
164 | getfile(putdir, null); | |
165 | putent(&nulldir); | |
166 | flushent(); | |
167 | itp->t_size = seekpt - itp->t_seekpt; | |
168 | } | |
169 | } | |
170 | ||
171 | /* | |
172 | * skip over all the directories on the tape | |
173 | */ | |
174 | skipdirs() | |
175 | { | |
176 | ||
177 | while ((curfile.dip->di_mode & IFMT) == IFDIR) { | |
178 | skipfile(); | |
179 | } | |
180 | } | |
181 | ||
182 | /* | |
183 | * Recursively find names and inumbers of all files in subtree | |
184 | * pname and pass them off to be processed. | |
185 | */ | |
186 | treescan(pname, ino, todo) | |
187 | char *pname; | |
188 | ino_t ino; | |
189 | long (*todo)(); | |
190 | { | |
191 | register struct inotab *itp; | |
192 | register struct direct *dp; | |
193 | register struct entry *np; | |
194 | int namelen; | |
195 | daddr_t bpt; | |
196 | char locname[MAXPATHLEN + 1]; | |
197 | ||
198 | itp = inotablookup(ino); | |
199 | if (itp == NULL) { | |
200 | /* | |
201 | * Pname is name of a simple file or an unchanged directory. | |
202 | */ | |
203 | (void) (*todo)(pname, ino, LEAF); | |
204 | return; | |
205 | } | |
206 | /* | |
207 | * Pname is a dumped directory name. | |
208 | */ | |
209 | if ((*todo)(pname, ino, NODE) == FAIL) | |
210 | return; | |
211 | /* | |
212 | * begin search through the directory | |
213 | * skipping over "." and ".." | |
214 | */ | |
215 | (void) strncpy(locname, pname, MAXPATHLEN); | |
216 | (void) strncat(locname, "/", MAXPATHLEN); | |
217 | namelen = strlen(locname); | |
218 | rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt); | |
219 | dp = rst_readdir(dirp); /* "." */ | |
220 | if (dp != NULL && strcmp(dp->d_name, ".") == 0) | |
221 | dp = rst_readdir(dirp); /* ".." */ | |
222 | else | |
223 | fprintf(stderr, "Warning: `.' missing from directory %s\n", | |
224 | pname); | |
225 | if (dp != NULL && strcmp(dp->d_name, "..") == 0) | |
226 | dp = rst_readdir(dirp); /* first real entry */ | |
227 | else | |
228 | fprintf(stderr, "Warning: `..' missing from directory %s\n", | |
229 | pname); | |
230 | bpt = rst_telldir(dirp); | |
231 | /* | |
232 | * a zero inode signals end of directory | |
233 | */ | |
234 | while (dp != NULL && dp->d_ino != 0) { | |
235 | locname[namelen] = '\0'; | |
236 | if (namelen + dp->d_namlen >= MAXPATHLEN) { | |
237 | fprintf(stderr, "%s%s: name exceeds %d char\n", | |
238 | locname, dp->d_name, MAXPATHLEN); | |
239 | } else { | |
240 | (void) strncat(locname, dp->d_name, (int)dp->d_namlen); | |
241 | treescan(locname, dp->d_ino, todo); | |
242 | rst_seekdir(dirp, bpt, itp->t_seekpt); | |
243 | } | |
244 | dp = rst_readdir(dirp); | |
245 | bpt = rst_telldir(dirp); | |
246 | } | |
247 | if (dp == NULL) | |
248 | fprintf(stderr, "corrupted directory: %s.\n", locname); | |
249 | } | |
250 | ||
251 | /* | |
252 | * Search the directory tree rooted at inode ROOTINO | |
253 | * for the path pointed at by n | |
254 | */ | |
255 | ino_t | |
256 | psearch(n) | |
257 | char *n; | |
258 | { | |
259 | register char *cp, *cp1; | |
260 | ino_t ino; | |
261 | char c; | |
262 | ||
263 | ino = ROOTINO; | |
264 | if (*(cp = n) == '/') | |
265 | cp++; | |
266 | next: | |
267 | cp1 = cp + 1; | |
268 | while (*cp1 != '/' && *cp1) | |
269 | cp1++; | |
270 | c = *cp1; | |
271 | *cp1 = 0; | |
272 | ino = search(ino, cp); | |
273 | if (ino == 0) { | |
274 | *cp1 = c; | |
275 | return(0); | |
276 | } | |
277 | *cp1 = c; | |
278 | if (c == '/') { | |
279 | cp = cp1+1; | |
280 | goto next; | |
281 | } | |
282 | return(ino); | |
283 | } | |
284 | ||
285 | /* | |
286 | * search the directory inode ino | |
287 | * looking for entry cp | |
288 | */ | |
289 | ino_t | |
290 | search(inum, cp) | |
291 | ino_t inum; | |
292 | char *cp; | |
293 | { | |
294 | register struct direct *dp; | |
295 | register struct inotab *itp; | |
296 | int len; | |
297 | ||
298 | itp = inotablookup(inum); | |
299 | if (itp == NULL) | |
300 | return(0); | |
301 | rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt); | |
302 | len = strlen(cp); | |
303 | do { | |
304 | dp = rst_readdir(dirp); | |
305 | if (dp == NULL || dp->d_ino == 0) | |
306 | return (0); | |
307 | } while (dp->d_namlen != len || strncmp(dp->d_name, cp, len) != 0); | |
308 | return(dp->d_ino); | |
309 | } | |
310 | ||
311 | /* | |
312 | * Put the directory entries in the directory file | |
313 | */ | |
314 | putdir(buf, size) | |
315 | char *buf; | |
316 | int size; | |
317 | { | |
318 | struct direct cvtbuf; | |
319 | register struct odirect *odp; | |
320 | struct odirect *eodp; | |
321 | register struct direct *dp; | |
322 | long loc, i; | |
323 | extern int Bcvt; | |
324 | ||
325 | if (cvtflag) { | |
326 | eodp = (struct odirect *)&buf[size]; | |
327 | for (odp = (struct odirect *)buf; odp < eodp; odp++) | |
328 | if (odp->d_ino != 0) { | |
329 | dcvt(odp, &cvtbuf); | |
330 | putent(&cvtbuf); | |
331 | } | |
332 | } else { | |
333 | for (loc = 0; loc < size; ) { | |
334 | dp = (struct direct *)(buf + loc); | |
335 | if (Bcvt) { | |
336 | swabst("l2s", (char *) dp); | |
337 | } | |
338 | i = DIRBLKSIZ - (loc & (DIRBLKSIZ - 1)); | |
339 | if ((dp->d_reclen & 0x3) != 0 || | |
340 | dp->d_reclen > i || | |
341 | dp->d_reclen < DIRSIZ(dp) || | |
342 | dp->d_namlen > MAXNAMLEN) { | |
343 | vprintf(stdout, "Mangled directory\n"); | |
344 | loc += i; | |
345 | continue; | |
346 | } | |
347 | loc += dp->d_reclen; | |
348 | if (dp->d_ino != 0) { | |
349 | putent(dp); | |
350 | } | |
351 | } | |
352 | } | |
353 | } | |
354 | ||
355 | /* | |
356 | * These variables are "local" to the following two functions. | |
357 | */ | |
358 | char dirbuf[DIRBLKSIZ]; | |
359 | long dirloc = 0; | |
360 | long prev = 0; | |
361 | ||
362 | /* | |
363 | * add a new directory entry to a file. | |
364 | */ | |
365 | putent(dp) | |
366 | struct direct *dp; | |
367 | { | |
368 | dp->d_reclen = DIRSIZ(dp); | |
369 | if (dirloc + dp->d_reclen > DIRBLKSIZ) { | |
370 | ((struct direct *)(dirbuf + prev))->d_reclen = | |
371 | DIRBLKSIZ - prev; | |
372 | (void) fwrite(dirbuf, 1, DIRBLKSIZ, df); | |
373 | dirloc = 0; | |
374 | } | |
375 | bcopy((char *)dp, dirbuf + dirloc, (long)dp->d_reclen); | |
376 | prev = dirloc; | |
377 | dirloc += dp->d_reclen; | |
378 | } | |
379 | ||
380 | /* | |
381 | * flush out a directory that is finished. | |
382 | */ | |
383 | flushent() | |
384 | { | |
385 | ||
386 | ((struct direct *)(dirbuf + prev))->d_reclen = DIRBLKSIZ - prev; | |
387 | (void) fwrite(dirbuf, (int)dirloc, 1, df); | |
388 | seekpt = ftell(df); | |
389 | dirloc = 0; | |
390 | } | |
391 | ||
392 | dcvt(odp, ndp) | |
393 | register struct odirect *odp; | |
394 | register struct direct *ndp; | |
395 | { | |
396 | ||
397 | bzero((char *)ndp, (long)(sizeof *ndp)); | |
398 | ndp->d_ino = odp->d_ino; | |
399 | (void) strncpy(ndp->d_name, odp->d_name, ODIRSIZ); | |
400 | ndp->d_namlen = strlen(ndp->d_name); | |
401 | ndp->d_reclen = DIRSIZ(ndp); | |
402 | } | |
403 | ||
404 | /* | |
405 | * Seek to an entry in a directory. | |
406 | * Only values returned by rst_telldir should be passed to rst_seekdir. | |
407 | * This routine handles many directories in a single file. | |
408 | * It takes the base of the directory in the file, plus | |
409 | * the desired seek offset into it. | |
410 | */ | |
411 | void | |
412 | rst_seekdir(dirp, loc, base) | |
413 | register DIR *dirp; | |
414 | daddr_t loc, base; | |
415 | { | |
416 | ||
417 | if (loc == rst_telldir(dirp)) | |
418 | return; | |
419 | loc -= base; | |
420 | if (loc < 0) | |
421 | fprintf(stderr, "bad seek pointer to rst_seekdir %d\n", loc); | |
422 | (void) lseek(dirp->dd_fd, base + (loc & ~(DIRBLKSIZ - 1)), 0); | |
423 | dirp->dd_loc = loc & (DIRBLKSIZ - 1); | |
424 | if (dirp->dd_loc != 0) | |
425 | dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ); | |
426 | } | |
427 | ||
428 | /* | |
429 | * get next entry in a directory. | |
430 | */ | |
431 | struct direct * | |
432 | rst_readdir(dirp) | |
433 | register DIR *dirp; | |
434 | { | |
435 | register struct direct *dp; | |
436 | ||
437 | for (;;) { | |
438 | if (dirp->dd_loc == 0) { | |
439 | dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf, | |
440 | DIRBLKSIZ); | |
441 | if (dirp->dd_size <= 0) { | |
442 | dprintf(stderr, "error reading directory\n"); | |
443 | return NULL; | |
444 | } | |
445 | } | |
446 | if (dirp->dd_loc >= dirp->dd_size) { | |
447 | dirp->dd_loc = 0; | |
448 | continue; | |
449 | } | |
450 | dp = (struct direct *)(dirp->dd_buf + dirp->dd_loc); | |
451 | if (dp->d_reclen == 0 || | |
452 | dp->d_reclen > DIRBLKSIZ + 1 - dirp->dd_loc) { | |
453 | dprintf(stderr, "corrupted directory: bad reclen %d\n", | |
454 | dp->d_reclen); | |
455 | return NULL; | |
456 | } | |
457 | dirp->dd_loc += dp->d_reclen; | |
458 | if (dp->d_ino == 0 && strcmp(dp->d_name, "/") != 0) | |
459 | continue; | |
460 | if (dp->d_ino >= maxino) { | |
461 | dprintf(stderr, "corrupted directory: bad inum %d\n", | |
462 | dp->d_ino); | |
463 | continue; | |
464 | } | |
465 | return (dp); | |
466 | } | |
467 | } | |
468 | ||
469 | /* | |
470 | * Simulate the opening of a directory | |
471 | */ | |
472 | DIR * | |
473 | rst_opendir(name) | |
474 | char *name; | |
475 | { | |
476 | struct inotab *itp; | |
477 | ino_t ino; | |
478 | ||
479 | if ((ino = dirlookup(name)) > 0 && | |
480 | (itp = inotablookup(ino)) != NULL) { | |
481 | rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt); | |
482 | return (dirp); | |
483 | } | |
484 | return (0); | |
485 | } | |
486 | ||
487 | /* | |
488 | * Simulate finding the current offset in the directory. | |
489 | */ | |
490 | off_t | |
491 | rst_telldir(dirp) | |
492 | DIR *dirp; | |
493 | { | |
494 | off_t lseek(); | |
495 | ||
496 | return (lseek(dirp->dd_fd, 0L, 1) - dirp->dd_size + dirp->dd_loc); | |
497 | } | |
498 | ||
499 | /* | |
500 | * Open a directory file. | |
501 | */ | |
502 | DIR * | |
503 | opendirfile(name) | |
504 | char *name; | |
505 | { | |
506 | register DIR *dirp; | |
507 | register int fd; | |
508 | ||
509 | if ((fd = open(name, 0)) == -1) | |
510 | return NULL; | |
511 | if ((dirp = (DIR *)malloc(sizeof(DIR))) == NULL) { | |
512 | close (fd); | |
513 | return NULL; | |
514 | } | |
515 | dirp->dd_fd = fd; | |
516 | dirp->dd_loc = 0; | |
517 | return dirp; | |
518 | } | |
519 | ||
520 | /* | |
521 | * Set the mode, owner, and times for all new or changed directories | |
522 | */ | |
523 | setdirmodes() | |
524 | { | |
525 | FILE *mf; | |
526 | struct modeinfo node; | |
527 | struct entry *ep; | |
528 | char *cp; | |
529 | ||
530 | vprintf(stdout, "Set directory mode, owner, and times.\n"); | |
531 | (void) sprintf(modefile, "%s/rstmode%d", _PATH_TMP, dumpdate); | |
532 | mf = fopen(modefile, "r"); | |
533 | if (mf == NULL) { | |
534 | perror("fopen"); | |
535 | fprintf(stderr, "cannot open mode file %s\n", modefile); | |
536 | fprintf(stderr, "directory mode, owner, and times not set\n"); | |
537 | return; | |
538 | } | |
539 | clearerr(mf); | |
540 | for (;;) { | |
541 | (void) fread((char *)&node, 1, sizeof(struct modeinfo), mf); | |
542 | if (feof(mf)) | |
543 | break; | |
544 | ep = lookupino(node.ino); | |
545 | if (command == 'i' || command == 'x') { | |
546 | if (ep == NIL) | |
547 | continue; | |
548 | if (ep->e_flags & EXISTED) { | |
549 | ep->e_flags &= ~NEW; | |
550 | continue; | |
551 | } | |
552 | if (node.ino == ROOTINO && | |
553 | reply("set owner/mode for '.'") == FAIL) | |
554 | continue; | |
555 | } | |
556 | if (ep == NIL) { | |
557 | panic("cannot find directory inode %d\n", node.ino); | |
558 | } else { | |
559 | cp = myname(ep); | |
560 | (void) chown(cp, node.uid, node.gid); | |
561 | (void) chmod(cp, node.mode); | |
562 | utimes(cp, node.timep); | |
563 | ep->e_flags &= ~NEW; | |
564 | } | |
565 | } | |
566 | if (ferror(mf)) | |
567 | panic("error setting directory modes\n"); | |
568 | (void) fclose(mf); | |
569 | } | |
570 | ||
571 | /* | |
572 | * Generate a literal copy of a directory. | |
573 | */ | |
574 | genliteraldir(name, ino) | |
575 | char *name; | |
576 | ino_t ino; | |
577 | { | |
578 | register struct inotab *itp; | |
579 | int ofile, dp, i, size; | |
580 | char buf[BUFSIZ]; | |
581 | ||
582 | itp = inotablookup(ino); | |
583 | if (itp == NULL) | |
584 | panic("Cannot find directory inode %d named %s\n", ino, name); | |
585 | if ((ofile = creat(name, 0666)) < 0) { | |
586 | fprintf(stderr, "%s: ", name); | |
587 | (void) fflush(stderr); | |
588 | perror("cannot create file"); | |
589 | return (FAIL); | |
590 | } | |
591 | rst_seekdir(dirp, itp->t_seekpt, itp->t_seekpt); | |
592 | dp = dup(dirp->dd_fd); | |
593 | for (i = itp->t_size; i > 0; i -= BUFSIZ) { | |
594 | size = i < BUFSIZ ? i : BUFSIZ; | |
595 | if (read(dp, buf, (int) size) == -1) { | |
596 | fprintf(stderr, | |
597 | "write error extracting inode %d, name %s\n", | |
598 | curfile.ino, curfile.name); | |
599 | perror("read"); | |
600 | done(1); | |
601 | } | |
602 | if (!Nflag && write(ofile, buf, (int) size) == -1) { | |
603 | fprintf(stderr, | |
604 | "write error extracting inode %d, name %s\n", | |
605 | curfile.ino, curfile.name); | |
606 | perror("write"); | |
607 | done(1); | |
608 | } | |
609 | } | |
610 | (void) close(dp); | |
611 | (void) close(ofile); | |
612 | return (GOOD); | |
613 | } | |
614 | ||
615 | /* | |
616 | * Determine the type of an inode | |
617 | */ | |
618 | inodetype(ino) | |
619 | ino_t ino; | |
620 | { | |
621 | struct inotab *itp; | |
622 | ||
623 | itp = inotablookup(ino); | |
624 | if (itp == NULL) | |
625 | return (LEAF); | |
626 | return (NODE); | |
627 | } | |
628 | ||
629 | /* | |
630 | * Allocate and initialize a directory inode entry. | |
631 | * If requested, save its pertinent mode, owner, and time info. | |
632 | */ | |
633 | struct inotab * | |
634 | allocinotab(ino, dip, seekpt) | |
635 | ino_t ino; | |
636 | struct dinode *dip; | |
637 | daddr_t seekpt; | |
638 | { | |
639 | register struct inotab *itp; | |
640 | struct modeinfo node; | |
641 | ||
642 | itp = (struct inotab *)calloc(1, sizeof(struct inotab)); | |
643 | if (itp == 0) | |
644 | panic("no memory directory table\n"); | |
645 | itp->t_next = inotab[INOHASH(ino)]; | |
646 | inotab[INOHASH(ino)] = itp; | |
647 | itp->t_ino = ino; | |
648 | itp->t_seekpt = seekpt; | |
649 | if (mf == NULL) | |
650 | return(itp); | |
651 | node.ino = ino; | |
652 | node.timep[0].tv_sec = dip->di_atime; | |
653 | node.timep[0].tv_usec = 0; | |
654 | node.timep[1].tv_sec = dip->di_mtime; | |
655 | node.timep[1].tv_usec = 0; | |
656 | node.mode = dip->di_mode; | |
657 | node.uid = dip->di_uid; | |
658 | node.gid = dip->di_gid; | |
659 | (void) fwrite((char *)&node, 1, sizeof(struct modeinfo), mf); | |
660 | return(itp); | |
661 | } | |
662 | ||
663 | /* | |
664 | * Look up an inode in the table of directories | |
665 | */ | |
666 | struct inotab * | |
667 | inotablookup(ino) | |
668 | ino_t ino; | |
669 | { | |
670 | register struct inotab *itp; | |
671 | ||
672 | for (itp = inotab[INOHASH(ino)]; itp != NULL; itp = itp->t_next) | |
673 | if (itp->t_ino == ino) | |
674 | return(itp); | |
675 | return ((struct inotab *)0); | |
676 | } | |
677 | ||
678 | /* | |
679 | * Clean up and exit | |
680 | */ | |
681 | done(exitcode) | |
682 | int exitcode; | |
683 | { | |
684 | ||
685 | closemt(); | |
686 | if (modefile[0] != '#') | |
687 | (void) unlink(modefile); | |
688 | if (dirfile[0] != '#') | |
689 | (void) unlink(dirfile); | |
690 | exit(exitcode); | |
691 | } |