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8c4ebc23 JH |
1 | /* List a tar archive. |
2 | Copyright (C) 1988, 1992, 1993 Free Software Foundation | |
3 | ||
4 | This file is part of GNU Tar. | |
5 | ||
6 | GNU Tar is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU Tar is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Tar; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | /* | |
21 | * List a tar archive. | |
22 | * | |
23 | * Also includes support routines for reading a tar archive. | |
24 | * | |
25 | * this version written 26 Aug 1985 by John Gilmore (ihnp4!hoptoad!gnu). | |
26 | */ | |
27 | ||
28 | #include <stdio.h> | |
29 | #include <ctype.h> | |
30 | #include <sys/types.h> | |
31 | #include <errno.h> | |
32 | #ifndef STDC_HEADERS | |
33 | extern int errno; | |
34 | #endif | |
35 | #include <time.h> | |
36 | ||
37 | #ifdef BSD42 | |
38 | #include <sys/file.h> | |
39 | #else | |
40 | #ifndef V7 | |
41 | #include <fcntl.h> | |
42 | #endif | |
43 | #endif | |
44 | ||
45 | #define isodigit(c) ( ((c) >= '0') && ((c) <= '7') ) | |
46 | ||
47 | #include "tar.h" | |
48 | #include "port.h" | |
49 | ||
50 | extern FILE *msg_file; | |
51 | ||
52 | long from_oct (); /* Decode octal number */ | |
53 | void demode (); /* Print file mode */ | |
54 | void restore_saved_dir_info (); | |
55 | PTR ck_malloc (); | |
56 | ||
57 | union record *head; /* Points to current archive header */ | |
58 | struct stat hstat; /* Stat struct corresponding */ | |
59 | int head_standard; /* Tape header is in ANSI format */ | |
60 | ||
61 | int check_exclude (); | |
62 | void close_archive (); | |
63 | void decode_header (); | |
64 | int findgid (); | |
65 | int finduid (); | |
66 | void name_gather (); | |
67 | int name_match (); | |
68 | void names_notfound (); | |
69 | void open_archive (); | |
70 | void print_header (); | |
71 | int read_header (); | |
72 | void saverec (); | |
73 | void skip_file (); | |
74 | void skip_extended_headers (); | |
75 | ||
76 | extern char *quote_copy_string (); | |
77 | ||
78 | ||
79 | /* | |
80 | * Main loop for reading an archive. | |
81 | */ | |
82 | void | |
83 | read_and (do_something) | |
84 | void (*do_something) (); | |
85 | { | |
86 | int status = 3; /* Initial status at start of archive */ | |
87 | int prev_status; | |
88 | extern time_t new_time; | |
89 | char save_linkflag; | |
90 | ||
91 | name_gather (); /* Gather all the names */ | |
92 | open_archive (1); /* Open for reading */ | |
93 | ||
94 | for (;;) | |
95 | { | |
96 | prev_status = status; | |
97 | status = read_header (); | |
98 | switch (status) | |
99 | { | |
100 | ||
101 | case 1: /* Valid header */ | |
102 | /* We should decode next field (mode) first... */ | |
103 | /* Ensure incoming names are null terminated. */ | |
104 | ||
105 | if (!name_match (current_file_name) | |
106 | || (f_new_files && hstat.st_mtime < new_time) | |
107 | || (f_exclude && check_exclude (current_file_name))) | |
108 | { | |
109 | ||
110 | int isextended = 0; | |
111 | ||
112 | if (head->header.linkflag == LF_VOLHDR | |
113 | || head->header.linkflag == LF_MULTIVOL | |
114 | || head->header.linkflag == LF_NAMES) | |
115 | { | |
116 | (*do_something) (); | |
117 | continue; | |
118 | } | |
119 | if (f_show_omitted_dirs | |
120 | && head->header.linkflag == LF_DIR) | |
121 | msg ("Omitting %s\n", current_file_name); | |
122 | /* Skip past it in the archive */ | |
123 | if (head->header.isextended) | |
124 | isextended = 1; | |
125 | save_linkflag = head->header.linkflag; | |
126 | userec (head); | |
127 | if (isextended) | |
128 | { | |
129 | /* register union record *exhdr; | |
130 | ||
131 | for (;;) { | |
132 | exhdr = findrec(); | |
133 | if (!exhdr->ext_hdr.isextended) { | |
134 | userec(exhdr); | |
135 | break; | |
136 | } | |
137 | } | |
138 | userec(exhdr);*/ | |
139 | skip_extended_headers (); | |
140 | } | |
141 | /* Skip to the next header on the archive */ | |
142 | if (save_linkflag != LF_DIR) | |
143 | skip_file ((long) hstat.st_size); | |
144 | continue; | |
145 | ||
146 | } | |
147 | ||
148 | (*do_something) (); | |
149 | continue; | |
150 | ||
151 | /* | |
152 | * If the previous header was good, tell them | |
153 | * that we are skipping bad ones. | |
154 | */ | |
155 | case 0: /* Invalid header */ | |
156 | userec (head); | |
157 | switch (prev_status) | |
158 | { | |
159 | case 3: /* Error on first record */ | |
160 | msg ("Hmm, this doesn't look like a tar archive."); | |
161 | /* FALL THRU */ | |
162 | case 2: /* Error after record of zeroes */ | |
163 | case 1: /* Error after header rec */ | |
164 | msg ("Skipping to next file header..."); | |
165 | case 0: /* Error after error */ | |
166 | break; | |
167 | } | |
168 | continue; | |
169 | ||
170 | case 2: /* Record of zeroes */ | |
171 | userec (head); | |
172 | status = prev_status; /* If error after 0's */ | |
173 | if (f_ignorez) | |
174 | continue; | |
175 | /* FALL THRU */ | |
176 | case EOF: /* End of archive */ | |
177 | break; | |
178 | } | |
179 | break; | |
180 | }; | |
181 | ||
182 | restore_saved_dir_info (); | |
183 | close_archive (); | |
184 | names_notfound (); /* Print names not found */ | |
185 | } | |
186 | ||
187 | ||
188 | /* | |
189 | * Print a header record, based on tar options. | |
190 | */ | |
191 | void | |
192 | list_archive () | |
193 | { | |
194 | extern char *save_name; | |
195 | int isextended = 0; /* Flag to remember if head is extended */ | |
196 | ||
197 | /* Save the record */ | |
198 | saverec (&head); | |
199 | ||
200 | /* Print the header record */ | |
201 | if (f_verbose) | |
202 | { | |
203 | if (f_verbose > 1) | |
204 | decode_header (head, &hstat, &head_standard, 0); | |
205 | print_header (); | |
206 | } | |
207 | ||
208 | if (f_gnudump && head->header.linkflag == LF_DUMPDIR) | |
209 | { | |
210 | size_t size, written, check; | |
211 | char *data; | |
212 | extern long save_totsize; | |
213 | extern long save_sizeleft; | |
214 | ||
215 | userec (head); | |
216 | if (f_multivol) | |
217 | { | |
218 | save_name = current_file_name; | |
219 | save_totsize = hstat.st_size; | |
220 | } | |
221 | for (size = hstat.st_size; size > 0; size -= written) | |
222 | { | |
223 | if (f_multivol) | |
224 | save_sizeleft = size; | |
225 | data = findrec ()->charptr; | |
226 | if (data == NULL) | |
227 | { | |
228 | msg ("EOF in archive file?"); | |
229 | break; | |
230 | } | |
231 | written = endofrecs ()->charptr - data; | |
232 | if (written > size) | |
233 | written = size; | |
234 | errno = 0; | |
235 | check = fwrite (data, sizeof (char), written, msg_file); | |
236 | userec ((union record *) (data + written - 1)); | |
237 | if (check != written) | |
238 | { | |
239 | msg_perror ("only wrote %ld of %ld bytes to file %s", check, written, current_file_name); | |
240 | skip_file ((long) (size) - written); | |
241 | break; | |
242 | } | |
243 | } | |
244 | if (f_multivol) | |
245 | save_name = 0; | |
246 | saverec ((union record **) 0); /* Unsave it */ | |
247 | fputc ('\n', msg_file); | |
248 | fflush (msg_file); | |
249 | return; | |
250 | ||
251 | } | |
252 | saverec ((union record **) 0);/* Unsave it */ | |
253 | /* Check to see if we have an extended header to skip over also */ | |
254 | if (head->header.isextended) | |
255 | isextended = 1; | |
256 | ||
257 | /* Skip past the header in the archive */ | |
258 | userec (head); | |
259 | ||
260 | /* | |
261 | * If we needed to skip any extended headers, do so now, by | |
262 | * reading extended headers and skipping past them in the | |
263 | * archive. | |
264 | */ | |
265 | if (isextended) | |
266 | { | |
267 | /* register union record *exhdr; | |
268 | ||
269 | for (;;) { | |
270 | exhdr = findrec(); | |
271 | ||
272 | if (!exhdr->ext_hdr.isextended) { | |
273 | userec(exhdr); | |
274 | break; | |
275 | } | |
276 | userec(exhdr); | |
277 | }*/ | |
278 | skip_extended_headers (); | |
279 | } | |
280 | ||
281 | if (f_multivol) | |
282 | save_name = current_file_name; | |
283 | /* Skip to the next header on the archive */ | |
284 | ||
285 | skip_file ((long) hstat.st_size); | |
286 | ||
287 | if (f_multivol) | |
288 | save_name = 0; | |
289 | } | |
290 | ||
291 | ||
292 | /* | |
293 | * Read a record that's supposed to be a header record. | |
294 | * Return its address in "head", and if it is good, the file's | |
295 | * size in hstat.st_size. | |
296 | * | |
297 | * Return 1 for success, 0 if the checksum is bad, EOF on eof, | |
298 | * 2 for a record full of zeros (EOF marker). | |
299 | * | |
300 | * You must always userec(head) to skip past the header which this | |
301 | * routine reads. | |
302 | */ | |
303 | int | |
304 | read_header () | |
305 | { | |
306 | register int i; | |
307 | register long sum, signed_sum, recsum; | |
308 | register char *p; | |
309 | register union record *header; | |
310 | long from_oct (); | |
311 | char **longp; | |
312 | char *bp, *data; | |
313 | int size, written; | |
314 | static char *next_long_name, *next_long_link; | |
315 | char *name; | |
316 | ||
317 | recurse: | |
318 | ||
319 | header = findrec (); | |
320 | head = header; /* This is our current header */ | |
321 | if (NULL == header) | |
322 | return EOF; | |
323 | ||
324 | recsum = from_oct (8, header->header.chksum); | |
325 | ||
326 | sum = 0; | |
327 | p = header->charptr; | |
328 | for (i = sizeof (*header); --i >= 0;) | |
329 | { | |
330 | /* | |
331 | * We can't use unsigned char here because of old compilers, | |
332 | * e.g. V7. | |
333 | */ | |
334 | signed_sum += *p; | |
335 | sum += 0xFF & *p++; | |
336 | } | |
337 | ||
338 | /* Adjust checksum to count the "chksum" field as blanks. */ | |
339 | for (i = sizeof (header->header.chksum); --i >= 0;) | |
340 | { | |
341 | sum -= 0xFF & header->header.chksum[i]; | |
342 | signed_sum -= (char) header->header.chksum[i]; | |
343 | } | |
344 | sum += ' ' * sizeof header->header.chksum; | |
345 | signed_sum += ' ' * sizeof header->header.chksum; | |
346 | ||
347 | if (sum == 8 * ' ') | |
348 | { | |
349 | /* | |
350 | * This is a zeroed record...whole record is 0's except | |
351 | * for the 8 blanks we faked for the checksum field. | |
352 | */ | |
353 | return 2; | |
354 | } | |
355 | ||
356 | if (sum != recsum && signed_sum != recsum) | |
357 | return 0; | |
358 | ||
359 | /* | |
360 | * Good record. Decode file size and return. | |
361 | */ | |
362 | if (header->header.linkflag == LF_LINK) | |
363 | hstat.st_size = 0; /* Links 0 size on tape */ | |
364 | else | |
365 | hstat.st_size = from_oct (1 + 12, header->header.size); | |
366 | ||
367 | header->header.arch_name[NAMSIZ - 1] = '\0'; | |
368 | if (header->header.linkflag == LF_LONGNAME | |
369 | || header->header.linkflag == LF_LONGLINK) | |
370 | { | |
371 | longp = ((header->header.linkflag == LF_LONGNAME) | |
372 | ? &next_long_name | |
373 | : &next_long_link); | |
374 | ||
375 | userec (header); | |
376 | if (*longp) | |
377 | free (*longp); | |
378 | bp = *longp = (char *) ck_malloc (hstat.st_size); | |
379 | ||
380 | for (size = hstat.st_size; | |
381 | size > 0; | |
382 | size -= written) | |
383 | { | |
384 | data = findrec ()->charptr; | |
385 | if (data == NULL) | |
386 | { | |
387 | msg ("Unexpected EOF on archive file"); | |
388 | break; | |
389 | } | |
390 | written = endofrecs ()->charptr - data; | |
391 | if (written > size) | |
392 | written = size; | |
393 | ||
394 | bcopy (data, bp, written); | |
395 | bp += written; | |
396 | userec ((union record *) (data + written - 1)); | |
397 | } | |
398 | goto recurse; | |
399 | } | |
400 | else | |
401 | { | |
402 | name = (next_long_name | |
403 | ? next_long_name | |
404 | : head->header.arch_name); | |
405 | if (current_file_name) | |
406 | free (current_file_name); | |
407 | current_file_name = ck_malloc (strlen (name) + 1); | |
408 | strcpy (current_file_name, name); | |
409 | ||
410 | name = (next_long_link | |
411 | ? next_long_link | |
412 | : head->header.arch_linkname); | |
413 | if (current_link_name) | |
414 | free (current_link_name); | |
415 | current_link_name = ck_malloc (strlen (name) + 1); | |
416 | strcpy (current_link_name, name); | |
417 | ||
418 | next_long_link = next_long_name = 0; | |
419 | return 1; | |
420 | } | |
421 | } | |
422 | ||
423 | ||
424 | /* | |
425 | * Decode things from a file header record into a "struct stat". | |
426 | * Also set "*stdp" to !=0 or ==0 depending whether header record is "Unix | |
427 | * Standard" tar format or regular old tar format. | |
428 | * | |
429 | * read_header() has already decoded the checksum and length, so we don't. | |
430 | * | |
431 | * If wantug != 0, we want the uid/group info decoded from Unix Standard | |
432 | * tapes (for extraction). If == 0, we are just printing anyway, so save time. | |
433 | * | |
434 | * decode_header should NOT be called twice for the same record, since the | |
435 | * two calls might use different "wantug" values and thus might end up with | |
436 | * different uid/gid for the two calls. If anybody wants the uid/gid they | |
437 | * should decode it first, and other callers should decode it without uid/gid | |
438 | * before calling a routine, e.g. print_header, that assumes decoded data. | |
439 | */ | |
440 | void | |
441 | decode_header (header, st, stdp, wantug) | |
442 | register union record *header; | |
443 | register struct stat *st; | |
444 | int *stdp; | |
445 | int wantug; | |
446 | { | |
447 | long from_oct (); | |
448 | ||
449 | st->st_mode = from_oct (8, header->header.mode); | |
450 | st->st_mode &= 07777; | |
451 | st->st_mtime = from_oct (1 + 12, header->header.mtime); | |
452 | if (f_gnudump) | |
453 | { | |
454 | st->st_atime = from_oct (1 + 12, header->header.atime); | |
455 | st->st_ctime = from_oct (1 + 12, header->header.ctime); | |
456 | } | |
457 | ||
458 | if (0 == strcmp (header->header.magic, TMAGIC)) | |
459 | { | |
460 | /* Unix Standard tar archive */ | |
461 | *stdp = 1; | |
462 | if (wantug) | |
463 | { | |
464 | #ifdef NONAMES | |
465 | st->st_uid = from_oct (8, header->header.uid); | |
466 | st->st_gid = from_oct (8, header->header.gid); | |
467 | #else | |
468 | st->st_uid = | |
469 | (*header->header.uname | |
470 | ? finduid (header->header.uname) | |
471 | : from_oct (8, header->header.uid)); | |
472 | st->st_gid = | |
473 | (*header->header.gname | |
474 | ? findgid (header->header.gname) | |
475 | : from_oct (8, header->header.gid)); | |
476 | #endif | |
477 | } | |
478 | #if defined(S_IFBLK) || defined(S_IFCHR) | |
479 | switch (header->header.linkflag) | |
480 | { | |
481 | case LF_BLK: | |
482 | case LF_CHR: | |
483 | st->st_rdev = makedev (from_oct (8, header->header.devmajor), | |
484 | from_oct (8, header->header.devminor)); | |
485 | } | |
486 | #endif | |
487 | } | |
488 | else | |
489 | { | |
490 | /* Old fashioned tar archive */ | |
491 | *stdp = 0; | |
492 | st->st_uid = from_oct (8, header->header.uid); | |
493 | st->st_gid = from_oct (8, header->header.gid); | |
494 | st->st_rdev = 0; | |
495 | } | |
496 | } | |
497 | ||
498 | ||
499 | /* | |
500 | * Quick and dirty octal conversion. | |
501 | * | |
502 | * Result is -1 if the field is invalid (all blank, or nonoctal). | |
503 | */ | |
504 | long | |
505 | from_oct (digs, where) | |
506 | register int digs; | |
507 | register char *where; | |
508 | { | |
509 | register long value; | |
510 | ||
511 | while (isspace (*where)) | |
512 | { /* Skip spaces */ | |
513 | where++; | |
514 | if (--digs <= 0) | |
515 | return -1; /* All blank field */ | |
516 | } | |
517 | value = 0; | |
518 | while (digs > 0 && isodigit (*where)) | |
519 | { /* Scan til nonoctal */ | |
520 | value = (value << 3) | (*where++ - '0'); | |
521 | --digs; | |
522 | } | |
523 | ||
524 | if (digs > 0 && *where && !isspace (*where)) | |
525 | return -1; /* Ended on non-space/nul */ | |
526 | ||
527 | return value; | |
528 | } | |
529 | ||
530 | ||
531 | /* | |
532 | * Actually print it. | |
533 | * | |
534 | * Plain and fancy file header block logging. | |
535 | * Non-verbose just prints the name, e.g. for "tar t" or "tar x". | |
536 | * This should just contain file names, so it can be fed back into tar | |
537 | * with xargs or the "-T" option. The verbose option can give a bunch | |
538 | * of info, one line per file. I doubt anybody tries to parse its | |
539 | * format, or if they do, they shouldn't. Unix tar is pretty random here | |
540 | * anyway. | |
541 | * | |
542 | * Note that print_header uses the globals <head>, <hstat>, and | |
543 | * <head_standard>, which must be set up in advance. This is not very clean | |
544 | * and should be cleaned up. FIXME. | |
545 | */ | |
546 | #define UGSWIDTH 18 /* min width of User, group, size */ | |
547 | /* UGSWIDTH of 18 means that with user and group names <= 8 chars the columns | |
548 | never shift during the listing. */ | |
549 | #define DATEWIDTH 19 /* Last mod date */ | |
550 | static int ugswidth = UGSWIDTH; /* Max width encountered so far */ | |
551 | ||
552 | void | |
553 | print_header () | |
554 | { | |
555 | char modes[11]; | |
556 | char *timestamp; | |
557 | char uform[11], gform[11]; /* These hold formatted ints */ | |
558 | char *user, *group; | |
559 | char size[24]; /* Holds a formatted long or maj, min */ | |
560 | time_t longie; /* To make ctime() call portable */ | |
561 | int pad; | |
562 | char *name; | |
563 | extern long baserec; | |
564 | ||
565 | if (f_sayblock) | |
566 | fprintf (msg_file, "rec %10d: ", baserec + (ar_record - ar_block)); | |
567 | /* annofile(msg_file, (char *)NULL); */ | |
568 | ||
569 | if (f_verbose <= 1) | |
570 | { | |
571 | /* Just the fax, mam. */ | |
572 | char *name; | |
573 | ||
574 | name = quote_copy_string (current_file_name); | |
575 | if (name == 0) | |
576 | name = current_file_name; | |
577 | fprintf (msg_file, "%s\n", name); | |
578 | if (name != current_file_name) | |
579 | free (name); | |
580 | } | |
581 | else | |
582 | { | |
583 | /* File type and modes */ | |
584 | modes[0] = '?'; | |
585 | switch (head->header.linkflag) | |
586 | { | |
587 | case LF_VOLHDR: | |
588 | modes[0] = 'V'; | |
589 | break; | |
590 | ||
591 | case LF_MULTIVOL: | |
592 | modes[0] = 'M'; | |
593 | break; | |
594 | ||
595 | case LF_NAMES: | |
596 | modes[0] = 'N'; | |
597 | break; | |
598 | ||
599 | case LF_LONGNAME: | |
600 | case LF_LONGLINK: | |
601 | msg ("Visible longname error\n"); | |
602 | break; | |
603 | ||
604 | case LF_SPARSE: | |
605 | case LF_NORMAL: | |
606 | case LF_OLDNORMAL: | |
607 | case LF_LINK: | |
608 | modes[0] = '-'; | |
609 | if ('/' == current_file_name[strlen (current_file_name) - 1]) | |
610 | modes[0] = 'd'; | |
611 | break; | |
612 | case LF_DUMPDIR: | |
613 | modes[0] = 'd'; | |
614 | break; | |
615 | case LF_DIR: | |
616 | modes[0] = 'd'; | |
617 | break; | |
618 | case LF_SYMLINK: | |
619 | modes[0] = 'l'; | |
620 | break; | |
621 | case LF_BLK: | |
622 | modes[0] = 'b'; | |
623 | break; | |
624 | case LF_CHR: | |
625 | modes[0] = 'c'; | |
626 | break; | |
627 | case LF_FIFO: | |
628 | modes[0] = 'p'; | |
629 | break; | |
630 | case LF_CONTIG: | |
631 | modes[0] = 'C'; | |
632 | break; | |
633 | } | |
634 | ||
635 | demode ((unsigned) hstat.st_mode, modes + 1); | |
636 | ||
637 | /* Timestamp */ | |
638 | longie = hstat.st_mtime; | |
639 | timestamp = ctime (&longie); | |
640 | timestamp[16] = '\0'; | |
641 | timestamp[24] = '\0'; | |
642 | ||
643 | /* User and group names */ | |
644 | if (*head->header.uname && head_standard) | |
645 | { | |
646 | user = head->header.uname; | |
647 | } | |
648 | else | |
649 | { | |
650 | user = uform; | |
651 | (void) sprintf (uform, "%d", | |
652 | from_oct (8, head->header.uid)); | |
653 | } | |
654 | if (*head->header.gname && head_standard) | |
655 | { | |
656 | group = head->header.gname; | |
657 | } | |
658 | else | |
659 | { | |
660 | group = gform; | |
661 | (void) sprintf (gform, "%d", | |
662 | from_oct (8, head->header.gid)); | |
663 | } | |
664 | ||
665 | /* Format the file size or major/minor device numbers */ | |
666 | switch (head->header.linkflag) | |
667 | { | |
668 | #if defined(S_IFBLK) || defined(S_IFCHR) | |
669 | case LF_CHR: | |
670 | case LF_BLK: | |
671 | (void) sprintf (size, "%d,%d", | |
672 | major (hstat.st_rdev), | |
673 | minor (hstat.st_rdev)); | |
674 | break; | |
675 | #endif | |
676 | case LF_SPARSE: | |
677 | (void) sprintf (size, "%ld", | |
678 | from_oct (1 + 12, head->header.realsize)); | |
679 | break; | |
680 | default: | |
681 | (void) sprintf (size, "%ld", (long) hstat.st_size); | |
682 | } | |
683 | ||
684 | /* Figure out padding and print the whole line. */ | |
685 | pad = strlen (user) + strlen (group) + strlen (size) + 1; | |
686 | if (pad > ugswidth) | |
687 | ugswidth = pad; | |
688 | ||
689 | name = quote_copy_string (current_file_name); | |
690 | if (!name) | |
691 | name = current_file_name; | |
692 | fprintf (msg_file, "%s %s/%s %*s%s %s %s %s", | |
693 | modes, | |
694 | user, | |
695 | group, | |
696 | ugswidth - pad, | |
697 | "", | |
698 | size, | |
699 | timestamp + 4, timestamp + 20, | |
700 | name); | |
701 | ||
702 | if (name != current_file_name) | |
703 | free (name); | |
704 | switch (head->header.linkflag) | |
705 | { | |
706 | case LF_SYMLINK: | |
707 | name = quote_copy_string (current_link_name); | |
708 | if (!name) | |
709 | name = current_link_name; | |
710 | fprintf (msg_file, " -> %s\n", name); | |
711 | if (name != current_link_name) | |
712 | free (name); | |
713 | break; | |
714 | ||
715 | case LF_LINK: | |
716 | name = quote_copy_string (current_link_name); | |
717 | if (!name) | |
718 | name = current_link_name; | |
719 | fprintf (msg_file, " link to %s\n", current_link_name); | |
720 | if (name != current_link_name) | |
721 | free (name); | |
722 | break; | |
723 | ||
724 | default: | |
725 | fprintf (msg_file, " unknown file type '%c'\n", | |
726 | head->header.linkflag); | |
727 | break; | |
728 | ||
729 | case LF_OLDNORMAL: | |
730 | case LF_NORMAL: | |
731 | case LF_SPARSE: | |
732 | case LF_CHR: | |
733 | case LF_BLK: | |
734 | case LF_DIR: | |
735 | case LF_FIFO: | |
736 | case LF_CONTIG: | |
737 | case LF_DUMPDIR: | |
738 | putc ('\n', msg_file); | |
739 | break; | |
740 | ||
741 | case LF_VOLHDR: | |
742 | fprintf (msg_file, "--Volume Header--\n"); | |
743 | break; | |
744 | ||
745 | case LF_MULTIVOL: | |
746 | fprintf (msg_file, "--Continued at byte %ld--\n", from_oct (1 + 12, head->header.offset)); | |
747 | break; | |
748 | ||
749 | case LF_NAMES: | |
750 | fprintf (msg_file, "--Mangled file names--\n"); | |
751 | break; | |
752 | } | |
753 | } | |
754 | fflush (msg_file); | |
755 | } | |
756 | ||
757 | /* | |
758 | * Print a similar line when we make a directory automatically. | |
759 | */ | |
760 | void | |
761 | pr_mkdir (pathname, length, mode) | |
762 | char *pathname; | |
763 | int length; | |
764 | int mode; | |
765 | { | |
766 | char modes[11]; | |
767 | char *name; | |
768 | extern long baserec; | |
769 | ||
770 | if (f_verbose > 1) | |
771 | { | |
772 | /* File type and modes */ | |
773 | modes[0] = 'd'; | |
774 | demode ((unsigned) mode, modes + 1); | |
775 | ||
776 | if (f_sayblock) | |
777 | fprintf (msg_file, "rec %10d: ", baserec + (ar_record - ar_block)); | |
778 | /* annofile(msg_file, (char *)NULL); */ | |
779 | name = quote_copy_string (pathname); | |
780 | if (!name) | |
781 | name = pathname; | |
782 | fprintf (msg_file, "%s %*s %.*s\n", | |
783 | modes, | |
784 | ugswidth + DATEWIDTH, | |
785 | "Creating directory:", | |
786 | length, | |
787 | pathname); | |
788 | if (name != pathname) | |
789 | free (name); | |
790 | } | |
791 | } | |
792 | ||
793 | ||
794 | /* | |
795 | * Skip over <size> bytes of data in records in the archive. | |
796 | */ | |
797 | void | |
798 | skip_file (size) | |
799 | register long size; | |
800 | { | |
801 | union record *x; | |
802 | extern long save_totsize; | |
803 | extern long save_sizeleft; | |
804 | ||
805 | if (f_multivol) | |
806 | { | |
807 | save_totsize = size; | |
808 | save_sizeleft = size; | |
809 | } | |
810 | ||
811 | while (size > 0) | |
812 | { | |
813 | x = findrec (); | |
814 | if (x == NULL) | |
815 | { /* Check it... */ | |
816 | msg ("Unexpected EOF on archive file"); | |
817 | exit (EX_BADARCH); | |
818 | } | |
819 | userec (x); | |
820 | size -= RECORDSIZE; | |
821 | if (f_multivol) | |
822 | save_sizeleft -= RECORDSIZE; | |
823 | } | |
824 | } | |
825 | ||
826 | void | |
827 | skip_extended_headers () | |
828 | { | |
829 | register union record *exhdr; | |
830 | ||
831 | for (;;) | |
832 | { | |
833 | exhdr = findrec (); | |
834 | if (!exhdr->ext_hdr.isextended) | |
835 | { | |
836 | userec (exhdr); | |
837 | break; | |
838 | } | |
839 | userec (exhdr); | |
840 | } | |
841 | } | |
842 | ||
843 | /* | |
844 | * Decode the mode string from a stat entry into a 9-char string and a null. | |
845 | */ | |
846 | void | |
847 | demode (mode, string) | |
848 | register unsigned mode; | |
849 | register char *string; | |
850 | { | |
851 | register unsigned mask; | |
852 | register char *rwx = "rwxrwxrwx"; | |
853 | ||
854 | for (mask = 0400; mask != 0; mask >>= 1) | |
855 | { | |
856 | if (mode & mask) | |
857 | *string++ = *rwx++; | |
858 | else | |
859 | { | |
860 | *string++ = '-'; | |
861 | rwx++; | |
862 | } | |
863 | } | |
864 | ||
865 | if (mode & S_ISUID) | |
866 | if (string[-7] == 'x') | |
867 | string[-7] = 's'; | |
868 | else | |
869 | string[-7] = 'S'; | |
870 | if (mode & S_ISGID) | |
871 | if (string[-4] == 'x') | |
872 | string[-4] = 's'; | |
873 | else | |
874 | string[-4] = 'S'; | |
875 | if (mode & S_ISVTX) | |
876 | if (string[-1] == 'x') | |
877 | string[-1] = 't'; | |
878 | else | |
879 | string[-1] = 'T'; | |
880 | *string = '\0'; | |
881 | } |