| 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 | } |