Commit | Line | Data |
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f87489ac WJ |
1 | /* List a tar archive. |
2 | Copyright (C) 1988 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 1, 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 | * @(#)list.c 1.31 11/5/87 - gnu | |
28 | */ | |
29 | #include <stdio.h> | |
30 | #include <ctype.h> | |
31 | #include <sys/types.h> | |
32 | #include <sys/stat.h> | |
33 | #ifndef MSDOS | |
34 | #include <sys/file.h> | |
35 | #endif /* MSDOS */ | |
36 | ||
37 | #ifdef USG | |
38 | #include <sys/sysmacros.h> /* major() and minor() defined here */ | |
39 | #endif | |
40 | ||
41 | char *ctime(); /* From libc.a */ | |
42 | ||
43 | #define isodigit(c) ( ((c) >= '0') && ((c) <= '7') ) | |
44 | ||
45 | #include "tar.h" | |
46 | #include "port.h" | |
47 | ||
48 | extern FILE *msg_file; | |
49 | ||
50 | long from_oct(); /* Decode octal number */ | |
51 | void demode(); /* Print file mode */ | |
52 | ||
53 | union record *head; /* Points to current archive header */ | |
54 | struct stat hstat; /* Stat struct corresponding */ | |
55 | int head_standard; /* Tape header is in ANSI format */ | |
56 | ||
57 | void print_header(); | |
58 | void skip_file(); | |
59 | void skip_extended_headers(); | |
60 | ||
61 | extern char *quote_copy_string(); | |
62 | ||
63 | ||
64 | /* | |
65 | * Main loop for reading an archive. | |
66 | */ | |
67 | void | |
68 | read_and(do_something) | |
69 | void (*do_something)(); | |
70 | { | |
71 | int status = 3; /* Initial status at start of archive */ | |
72 | int prev_status; | |
73 | extern time_t new_time; | |
74 | char save_linkflag; | |
75 | ||
76 | name_gather(); /* Gather all the names */ | |
77 | open_archive(1); /* Open for reading */ | |
78 | ||
79 | for(;;) { | |
80 | prev_status = status; | |
81 | status = read_header(); | |
82 | switch (status) { | |
83 | ||
84 | case 1: /* Valid header */ | |
85 | /* We should decode next field (mode) first... */ | |
86 | /* Ensure incoming names are null terminated. */ | |
87 | head->header.name[NAMSIZ-1] = '\0'; | |
88 | ||
89 | if ( !name_match(head->header.name) | |
90 | || (f_new_files && hstat.st_mtime<new_time) | |
91 | || (f_exclude && check_exclude(head->header.name))) { | |
92 | ||
93 | int isextended = 0; | |
94 | ||
95 | if( head->header.linkflag==LF_VOLHDR | |
96 | || head->header.linkflag==LF_MULTIVOL | |
97 | || head->header.linkflag==LF_NAMES) { | |
98 | (*do_something)(); | |
99 | continue; | |
100 | } | |
101 | /* Skip past it in the archive */ | |
102 | if (head->header.isextended) | |
103 | isextended = 1; | |
104 | save_linkflag = head->header.linkflag; | |
105 | userec(head); | |
106 | if (isextended) { | |
107 | /* register union record *exhdr; | |
108 | ||
109 | for (;;) { | |
110 | exhdr = findrec(); | |
111 | if (!exhdr->ext_hdr.isextended) { | |
112 | userec(exhdr); | |
113 | break; | |
114 | } | |
115 | } | |
116 | userec(exhdr);*/ | |
117 | skip_extended_headers(); | |
118 | } | |
119 | /* Skip to the next header on the archive */ | |
120 | if(save_linkflag != LF_DIR) | |
121 | skip_file((long)hstat.st_size); | |
122 | continue; | |
123 | ||
124 | } | |
125 | ||
126 | (*do_something)(); | |
127 | continue; | |
128 | ||
129 | /* | |
130 | * If the previous header was good, tell them | |
131 | * that we are skipping bad ones. | |
132 | */ | |
133 | case 0: /* Invalid header */ | |
134 | userec(head); | |
135 | switch (prev_status) { | |
136 | case 3: /* Error on first record */ | |
137 | msg("Hmm, this doesn't look like a tar archive."); | |
138 | /* FALL THRU */ | |
139 | case 2: /* Error after record of zeroes */ | |
140 | case 1: /* Error after header rec */ | |
141 | msg("Skipping to next file header..."); | |
142 | case 0: /* Error after error */ | |
143 | break; | |
144 | } | |
145 | continue; | |
146 | ||
147 | case 2: /* Record of zeroes */ | |
148 | userec(head); | |
149 | status = prev_status; /* If error after 0's */ | |
150 | if (f_ignorez) | |
151 | continue; | |
152 | /* FALL THRU */ | |
153 | case EOF: /* End of archive */ | |
154 | break; | |
155 | } | |
156 | break; | |
157 | }; | |
158 | ||
159 | close_archive(); | |
160 | names_notfound(); /* Print names not found */ | |
161 | } | |
162 | ||
163 | ||
164 | /* | |
165 | * Print a header record, based on tar options. | |
166 | */ | |
167 | void | |
168 | list_archive() | |
169 | { | |
170 | extern char *save_name; | |
171 | int isextended = 0; /* Flag to remember if head is extended */ | |
172 | ||
173 | /* Save the record */ | |
174 | saverec(&head); | |
175 | ||
176 | /* Print the header record */ | |
177 | if (f_verbose) { | |
178 | if (f_verbose > 1) | |
179 | decode_header(head, &hstat, &head_standard, 0); | |
180 | print_header(); | |
181 | } | |
182 | ||
183 | if(f_gnudump && head->header.linkflag==LF_DUMPDIR) { | |
184 | size_t size, written, check; | |
185 | char *data; | |
186 | extern int errno; | |
187 | extern long save_totsize; | |
188 | extern long save_sizeleft; | |
189 | ||
190 | userec(head); | |
191 | if(f_multivol) { | |
192 | save_name = head->header.name; | |
193 | save_totsize=hstat.st_size; | |
194 | } | |
195 | for(size = hstat.st_size;size>0;size-=written) { | |
196 | if(f_multivol) | |
197 | save_sizeleft=size; | |
198 | data = findrec()->charptr; | |
199 | if(data==NULL) { | |
200 | msg("EOF in archive file?"); | |
201 | break; | |
202 | } | |
203 | written = endofrecs()->charptr - data; | |
204 | if(written>size) | |
205 | written=size; | |
206 | errno=0; | |
207 | check=fwrite(data,sizeof(char), written, msg_file); | |
208 | userec((union record *)(data+written - 1)); | |
209 | if(check!=written) { | |
210 | msg_perror("only wrote %ld of %ld bytes to file %s",check, written,head->header.name); | |
211 | skip_file((long)(size)-written); | |
212 | break; | |
213 | } | |
214 | } | |
215 | if(f_multivol) | |
216 | save_name = 0; | |
217 | saverec((union record **) 0); /* Unsave it */ | |
218 | fputc('\n',msg_file); | |
219 | fflush(msg_file); | |
220 | return; | |
221 | ||
222 | } | |
223 | saverec((union record **) 0); /* Unsave it */ | |
224 | /* Check to see if we have an extended header to skip over also */ | |
225 | if (head->header.isextended) | |
226 | isextended = 1; | |
227 | ||
228 | /* Skip past the header in the archive */ | |
229 | userec(head); | |
230 | ||
231 | /* | |
232 | * If we needed to skip any extended headers, do so now, by | |
233 | * reading extended headers and skipping past them in the | |
234 | * archive. | |
235 | */ | |
236 | if (isextended) { | |
237 | /* register union record *exhdr; | |
238 | ||
239 | for (;;) { | |
240 | exhdr = findrec(); | |
241 | ||
242 | if (!exhdr->ext_hdr.isextended) { | |
243 | userec(exhdr); | |
244 | break; | |
245 | } | |
246 | userec(exhdr); | |
247 | }*/ | |
248 | skip_extended_headers(); | |
249 | } | |
250 | ||
251 | if(f_multivol) | |
252 | save_name=head->header.name; | |
253 | /* Skip to the next header on the archive */ | |
254 | ||
255 | skip_file((long) hstat.st_size); | |
256 | ||
257 | if(f_multivol) | |
258 | save_name = 0; | |
259 | } | |
260 | ||
261 | ||
262 | /* | |
263 | * Read a record that's supposed to be a header record. | |
264 | * Return its address in "head", and if it is good, the file's | |
265 | * size in hstat.st_size. | |
266 | * | |
267 | * Return 1 for success, 0 if the checksum is bad, EOF on eof, | |
268 | * 2 for a record full of zeros (EOF marker). | |
269 | * | |
270 | * You must always userec(head) to skip past the header which this | |
271 | * routine reads. | |
272 | */ | |
273 | int | |
274 | read_header() | |
275 | { | |
276 | register int i; | |
277 | register long sum, recsum; | |
278 | register char *p; | |
279 | register union record *header; | |
280 | long from_oct(); | |
281 | ||
282 | header = findrec(); | |
283 | head = header; /* This is our current header */ | |
284 | if (NULL == header) | |
285 | return EOF; | |
286 | ||
287 | recsum = from_oct(8, header->header.chksum); | |
288 | ||
289 | sum = 0; | |
290 | p = header->charptr; | |
291 | for (i = sizeof(*header); --i >= 0;) { | |
292 | /* | |
293 | * We can't use unsigned char here because of old compilers, | |
294 | * e.g. V7. | |
295 | */ | |
296 | sum += 0xFF & *p++; | |
297 | } | |
298 | ||
299 | /* Adjust checksum to count the "chksum" field as blanks. */ | |
300 | for (i = sizeof(header->header.chksum); --i >= 0;) | |
301 | sum -= 0xFF & header->header.chksum[i]; | |
302 | sum += ' '* sizeof header->header.chksum; | |
303 | ||
304 | if (sum == recsum) { | |
305 | /* | |
306 | * Good record. Decode file size and return. | |
307 | */ | |
308 | if (header->header.linkflag == LF_LINK) | |
309 | hstat.st_size = 0; /* Links 0 size on tape */ | |
310 | else | |
311 | hstat.st_size = from_oct(1+12, header->header.size); | |
312 | return 1; | |
313 | } | |
314 | ||
315 | if (sum == 8*' ') { | |
316 | /* | |
317 | * This is a zeroed record...whole record is 0's except | |
318 | * for the 8 blanks we faked for the checksum field. | |
319 | */ | |
320 | return 2; | |
321 | } | |
322 | ||
323 | return 0; | |
324 | } | |
325 | ||
326 | ||
327 | /* | |
328 | * Decode things from a file header record into a "struct stat". | |
329 | * Also set "*stdp" to !=0 or ==0 depending whether header record is "Unix | |
330 | * Standard" tar format or regular old tar format. | |
331 | * | |
332 | * read_header() has already decoded the checksum and length, so we don't. | |
333 | * | |
334 | * If wantug != 0, we want the uid/group info decoded from Unix Standard | |
335 | * tapes (for extraction). If == 0, we are just printing anyway, so save time. | |
336 | * | |
337 | * decode_header should NOT be called twice for the same record, since the | |
338 | * two calls might use different "wantug" values and thus might end up with | |
339 | * different uid/gid for the two calls. If anybody wants the uid/gid they | |
340 | * should decode it first, and other callers should decode it without uid/gid | |
341 | * before calling a routine, e.g. print_header, that assumes decoded data. | |
342 | */ | |
343 | decode_header(header, st, stdp, wantug) | |
344 | register union record *header; | |
345 | register struct stat *st; | |
346 | int *stdp; | |
347 | int wantug; | |
348 | { | |
349 | ||
350 | long from_oct(); | |
351 | ||
352 | st->st_mode = from_oct(8, header->header.mode); | |
353 | st->st_mtime = from_oct(1+12, header->header.mtime); | |
354 | if(f_gnudump) { | |
355 | st->st_atime = from_oct(1+12, header->header.atime); | |
356 | st->st_ctime = from_oct(1+12, header->header.ctime); | |
357 | } | |
358 | ||
359 | if (0==strcmp(header->header.magic, TMAGIC)) { | |
360 | /* Unix Standard tar archive */ | |
361 | *stdp = 1; | |
362 | if (wantug) { | |
363 | #ifdef NONAMES | |
364 | st->st_uid = from_oct(8, header->header.uid); | |
365 | st->st_gid = from_oct(8, header->header.gid); | |
366 | #else | |
367 | st->st_uid = finduid(header->header.uname); | |
368 | st->st_gid = findgid(header->header.gname); | |
369 | #endif | |
370 | } | |
371 | switch (header->header.linkflag) { | |
372 | case LF_BLK: case LF_CHR: | |
373 | st->st_rdev = makedev(from_oct(8, header->header.devmajor), | |
374 | from_oct(8, header->header.devminor)); | |
375 | } | |
376 | } else { | |
377 | /* Old fashioned tar archive */ | |
378 | *stdp = 0; | |
379 | st->st_uid = from_oct(8, header->header.uid); | |
380 | st->st_gid = from_oct(8, header->header.gid); | |
381 | st->st_rdev = 0; | |
382 | } | |
383 | } | |
384 | ||
385 | ||
386 | /* | |
387 | * Quick and dirty octal conversion. | |
388 | * | |
389 | * Result is -1 if the field is invalid (all blank, or nonoctal). | |
390 | */ | |
391 | long | |
392 | from_oct(digs, where) | |
393 | register int digs; | |
394 | register char *where; | |
395 | { | |
396 | register long value; | |
397 | ||
398 | while (isspace(*where)) { /* Skip spaces */ | |
399 | where++; | |
400 | if (--digs <= 0) | |
401 | return -1; /* All blank field */ | |
402 | } | |
403 | value = 0; | |
404 | while (digs > 0 && isodigit(*where)) { /* Scan til nonoctal */ | |
405 | value = (value << 3) | (*where++ - '0'); | |
406 | --digs; | |
407 | } | |
408 | ||
409 | if (digs > 0 && *where && !isspace(*where)) | |
410 | return -1; /* Ended on non-space/nul */ | |
411 | ||
412 | return value; | |
413 | } | |
414 | ||
415 | ||
416 | /* | |
417 | * Actually print it. | |
418 | * | |
419 | * Plain and fancy file header block logging. | |
420 | * Non-verbose just prints the name, e.g. for "tar t" or "tar x". | |
421 | * This should just contain file names, so it can be fed back into tar | |
422 | * with xargs or the "-T" option. The verbose option can give a bunch | |
423 | * of info, one line per file. I doubt anybody tries to parse its | |
424 | * format, or if they do, they shouldn't. Unix tar is pretty random here | |
425 | * anyway. | |
426 | * | |
427 | * Note that print_header uses the globals <head>, <hstat>, and | |
428 | * <head_standard>, which must be set up in advance. This is not very clean | |
429 | * and should be cleaned up. FIXME. | |
430 | */ | |
431 | #define UGSWIDTH 11 /* min width of User, group, size */ | |
432 | #define DATEWIDTH 19 /* Last mod date */ | |
433 | static int ugswidth = UGSWIDTH; /* Max width encountered so far */ | |
434 | ||
435 | void | |
436 | print_header() | |
437 | { | |
438 | char modes[11]; | |
439 | char *timestamp; | |
440 | char uform[11], gform[11]; /* These hold formatted ints */ | |
441 | char *user, *group; | |
442 | char size[24]; /* Holds a formatted long or maj, min */ | |
443 | long longie; /* To make ctime() call portable */ | |
444 | int pad; | |
445 | char *name; | |
446 | extern long baserec; | |
447 | ||
448 | if(f_sayblock) | |
449 | fprintf(msg_file,"rec %10d: ",baserec + (ar_record - ar_block)); | |
450 | /* annofile(msg_file, (char *)NULL); */ | |
451 | ||
452 | if (f_verbose <= 1) { | |
453 | /* Just the fax, mam. */ | |
454 | char *name; | |
455 | ||
456 | name=quote_copy_string(head->header.name); | |
457 | if(name==0) | |
458 | name=head->header.name; | |
459 | fprintf(msg_file, "%s\n", name); | |
460 | if(name!=head->header.name) | |
461 | free(name); | |
462 | } else { | |
463 | /* File type and modes */ | |
464 | modes[0] = '?'; | |
465 | switch (head->header.linkflag) { | |
466 | case LF_VOLHDR: | |
467 | modes[0]='V'; | |
468 | break; | |
469 | ||
470 | case LF_MULTIVOL: | |
471 | modes[0]='M'; | |
472 | break; | |
473 | ||
474 | case LF_NAMES: | |
475 | modes[0]='N'; | |
476 | break; | |
477 | ||
478 | case LF_SPARSE: | |
479 | case LF_NORMAL: | |
480 | case LF_OLDNORMAL: | |
481 | case LF_LINK: | |
482 | modes[0] = '-'; | |
483 | if ('/' == head->header.name[strlen(head->header.name)-1]) | |
484 | modes[0] = 'd'; | |
485 | break; | |
486 | case LF_DUMPDIR:modes[0] = 'd'; break; | |
487 | case LF_DIR: modes[0] = 'd'; break; | |
488 | case LF_SYMLINK:modes[0] = 'l'; break; | |
489 | case LF_BLK: modes[0] = 'b'; break; | |
490 | case LF_CHR: modes[0] = 'c'; break; | |
491 | case LF_FIFO: modes[0] = 'p'; break; | |
492 | case LF_CONTIG: modes[0] = 'C'; break; | |
493 | } | |
494 | ||
495 | demode((unsigned)hstat.st_mode, modes+1); | |
496 | ||
497 | /* Timestamp */ | |
498 | longie = hstat.st_mtime; | |
499 | timestamp = ctime(&longie); | |
500 | timestamp[16] = '\0'; | |
501 | timestamp[24] = '\0'; | |
502 | ||
503 | /* User and group names */ | |
504 | if (*head->header.uname && head_standard) { | |
505 | user = head->header.uname; | |
506 | } else { | |
507 | user = uform; | |
508 | (void)sprintf(uform, "%d", (int)hstat.st_uid); | |
509 | } | |
510 | if (*head->header.gname && head_standard) { | |
511 | group = head->header.gname; | |
512 | } else { | |
513 | group = gform; | |
514 | (void)sprintf(gform, "%d", (int)hstat.st_gid); | |
515 | } | |
516 | ||
517 | /* Format the file size or major/minor device numbers */ | |
518 | switch (head->header.linkflag) { | |
519 | case LF_CHR: | |
520 | case LF_BLK: | |
521 | (void)sprintf(size, "%d,%d", | |
522 | major(hstat.st_rdev), | |
523 | minor(hstat.st_rdev)); | |
524 | break; | |
525 | case LF_SPARSE: | |
526 | (void)sprintf(size, "%ld", | |
527 | from_oct(1+12, head->header.realsize)); | |
528 | break; | |
529 | default: | |
530 | (void)sprintf(size, "%ld", (long)hstat.st_size); | |
531 | } | |
532 | ||
533 | /* Figure out padding and print the whole line. */ | |
534 | pad = strlen(user) + strlen(group) + strlen(size) + 1; | |
535 | if (pad > ugswidth) ugswidth = pad; | |
536 | ||
537 | name = quote_copy_string(head->header.name); | |
538 | if(!name) | |
539 | name=head->header.name; | |
540 | fprintf(msg_file, "%s %s/%s %*s%s %s %s %.*s", | |
541 | modes, | |
542 | user, | |
543 | group, | |
544 | ugswidth - pad, | |
545 | "", | |
546 | size, | |
547 | timestamp+4, timestamp+20, | |
548 | sizeof(head->header.name), | |
549 | name); | |
550 | ||
551 | if(name!=head->header.name) | |
552 | free(name); | |
553 | switch (head->header.linkflag) { | |
554 | case LF_SYMLINK: | |
555 | name=quote_copy_string(head->header.linkname); | |
556 | if(!name) | |
557 | name=head->header.linkname; | |
558 | fprintf(msg_file, " -> %s\n", name); | |
559 | if(name!=head->header.linkname) | |
560 | free(name); | |
561 | break; | |
562 | ||
563 | case LF_LINK: | |
564 | name=quote_copy_string(head->header.linkname); | |
565 | if(!name) | |
566 | name=head->header.linkname; | |
567 | fprintf(msg_file, " link to %s\n", head->header.linkname); | |
568 | if(name!=head->header.linkname) | |
569 | free(name); | |
570 | break; | |
571 | ||
572 | default: | |
573 | fprintf(msg_file, " unknown file type '%c'\n", | |
574 | head->header.linkflag); | |
575 | break; | |
576 | ||
577 | case LF_OLDNORMAL: | |
578 | case LF_NORMAL: | |
579 | case LF_SPARSE: | |
580 | case LF_CHR: | |
581 | case LF_BLK: | |
582 | case LF_DIR: | |
583 | case LF_FIFO: | |
584 | case LF_CONTIG: | |
585 | case LF_DUMPDIR: | |
586 | putc('\n', msg_file); | |
587 | break; | |
588 | ||
589 | case LF_VOLHDR: | |
590 | fprintf(msg_file, "--Volume Header--\n"); | |
591 | break; | |
592 | ||
593 | case LF_MULTIVOL: | |
594 | fprintf(msg_file, "--Continued at byte %ld--\n",from_oct(1+12,head->header.offset)); | |
595 | break; | |
596 | ||
597 | case LF_NAMES: | |
598 | fprintf(msg_file,"--Mangled file names--\n"); | |
599 | break; | |
600 | } | |
601 | } | |
602 | fflush(msg_file); | |
603 | } | |
604 | ||
605 | /* | |
606 | * Print a similar line when we make a directory automatically. | |
607 | */ | |
608 | void | |
609 | pr_mkdir(pathname, length, mode) | |
610 | char *pathname; | |
611 | int length; | |
612 | int mode; | |
613 | { | |
614 | char modes[11]; | |
615 | char *name; | |
616 | extern long baserec; | |
617 | ||
618 | if (f_verbose > 1) { | |
619 | /* File type and modes */ | |
620 | modes[0] = 'd'; | |
621 | demode((unsigned)mode, modes+1); | |
622 | ||
623 | if(f_sayblock) | |
624 | fprintf(msg_file,"rec %10d: ",baserec + (ar_record - ar_block)); | |
625 | /* annofile(msg_file, (char *)NULL); */ | |
626 | name=quote_copy_string(pathname); | |
627 | if(!name) | |
628 | name=pathname; | |
629 | fprintf(msg_file, "%s %*s %.*s\n", | |
630 | modes, | |
631 | ugswidth+DATEWIDTH, | |
632 | "Creating directory:", | |
633 | length, | |
634 | pathname); | |
635 | if(name!=pathname) | |
636 | free(name); | |
637 | } | |
638 | } | |
639 | ||
640 | ||
641 | /* | |
642 | * Skip over <size> bytes of data in records in the archive. | |
643 | */ | |
644 | void | |
645 | skip_file(size) | |
646 | register long size; | |
647 | { | |
648 | union record *x; | |
649 | extern long save_totsize; | |
650 | extern long save_sizeleft; | |
651 | ||
652 | if(f_multivol) { | |
653 | save_totsize=size; | |
654 | save_sizeleft=size; | |
655 | } | |
656 | ||
657 | while (size > 0) { | |
658 | x = findrec(); | |
659 | if (x == NULL) { /* Check it... */ | |
660 | msg("Unexpected EOF on archive file"); | |
661 | exit(EX_BADARCH); | |
662 | } | |
663 | userec(x); | |
664 | size -= RECORDSIZE; | |
665 | if(f_multivol) | |
666 | save_sizeleft-=RECORDSIZE; | |
667 | } | |
668 | } | |
669 | ||
670 | void | |
671 | skip_extended_headers() | |
672 | { | |
673 | register union record *exhdr; | |
674 | ||
675 | for (;;) { | |
676 | exhdr = findrec(); | |
677 | if (!exhdr->ext_hdr.isextended) { | |
678 | userec(exhdr); | |
679 | break; | |
680 | } | |
681 | userec (exhdr); | |
682 | } | |
683 | } | |
684 | ||
685 | /* | |
686 | * Decode the mode string from a stat entry into a 9-char string and a null. | |
687 | */ | |
688 | void | |
689 | demode(mode, string) | |
690 | register unsigned mode; | |
691 | register char *string; | |
692 | { | |
693 | register unsigned mask; | |
694 | register char *rwx = "rwxrwxrwx"; | |
695 | ||
696 | for (mask = 0400; mask != 0; mask >>= 1) { | |
697 | if (mode & mask) | |
698 | *string++ = *rwx++; | |
699 | else { | |
700 | *string++ = '-'; | |
701 | rwx++; | |
702 | } | |
703 | } | |
704 | ||
705 | if (mode & S_ISUID) | |
706 | if (string[-7] == 'x') | |
707 | string[-7] = 's'; | |
708 | else | |
709 | string[-7] = 'S'; | |
710 | if (mode & S_ISGID) | |
711 | if (string[-4] == 'x') | |
712 | string[-4] = 's'; | |
713 | else | |
714 | string[-4] = 'S'; | |
715 | if (mode & S_ISVTX) | |
716 | if (string[-1] == 'x') | |
717 | string[-1] = 't'; | |
718 | else | |
719 | string[-1] = 'T'; | |
720 | *string = '\0'; | |
721 | } |