| 1 | /* |
| 2 | * untgz.c -- Display contents and extract files from a gzip'd TAR file |
| 3 | * |
| 4 | * written by Pedro A. Aranda Gutierrez <paag@tid.es> |
| 5 | * adaptation to Unix by Jean-loup Gailly <jloup@gzip.org> |
| 6 | * various fixes by Cosmin Truta <cosmint@cs.ubbcluj.ro> |
| 7 | * |
| 8 | * This software is provided 'as-is', without any express or implied |
| 9 | * warranty. In no event will the authors be held liable for any damages |
| 10 | * arising from the use of this software. |
| 11 | * |
| 12 | * Permission is granted to anyone to use this software for any purpose, |
| 13 | * including commercial applications, and to alter it and redistribute it |
| 14 | * freely, subject to the following restrictions: |
| 15 | * |
| 16 | * 1. The origin of this software must not be misrepresented; you must not |
| 17 | * claim that you wrote the original software. If you use this software |
| 18 | * in a product, an acknowledgment in the product documentation would be |
| 19 | * appreciated but is not required. |
| 20 | * 2. Altered source versions must be plainly marked as such, and must not be |
| 21 | * misrepresented as being the original software. |
| 22 | * 3. This notice may not be removed or altered from any source distribution. |
| 23 | */ |
| 24 | |
| 25 | #include <stdio.h> |
| 26 | #include <stdlib.h> |
| 27 | #include <string.h> |
| 28 | #include <time.h> |
| 29 | #include <errno.h> |
| 30 | |
| 31 | #include "zlib.h" |
| 32 | |
| 33 | #ifdef _WIN32 |
| 34 | # include <direct.h> |
| 35 | # include <io.h> |
| 36 | # include <windows.h> |
| 37 | # ifndef F_OK |
| 38 | # define F_OK 0 |
| 39 | # endif |
| 40 | # define mkdir(dirname,mode) _mkdir(dirname) |
| 41 | # ifdef _MSC_VER |
| 42 | # define access(path,mode) _access(path,mode) |
| 43 | # define chmod(path,mode) _chmod(path,mode) |
| 44 | # define strdup(str) _strdup(str) |
| 45 | # endif |
| 46 | #else |
| 47 | # include <sys/stat.h> |
| 48 | # include <unistd.h> |
| 49 | # include <utime.h> |
| 50 | #endif |
| 51 | |
| 52 | |
| 53 | /* values used in typeflag field */ |
| 54 | |
| 55 | #define REGTYPE '0' /* regular file */ |
| 56 | #define AREGTYPE '\0' /* regular file */ |
| 57 | #define LNKTYPE '1' /* link */ |
| 58 | #define SYMTYPE '2' /* reserved */ |
| 59 | #define CHRTYPE '3' /* character special */ |
| 60 | #define BLKTYPE '4' /* block special */ |
| 61 | #define DIRTYPE '5' /* directory */ |
| 62 | #define FIFOTYPE '6' /* FIFO special */ |
| 63 | #define CONTTYPE '7' /* reserved */ |
| 64 | |
| 65 | /* GNU tar extensions */ |
| 66 | |
| 67 | #define GNUTYPE_DUMPDIR 'D' /* file names from dumped directory */ |
| 68 | #define GNUTYPE_LONGLINK 'K' /* long link name */ |
| 69 | #define GNUTYPE_LONGNAME 'L' /* long file name */ |
| 70 | #define GNUTYPE_MULTIVOL 'M' /* continuation of file from another volume */ |
| 71 | #define GNUTYPE_NAMES 'N' /* file name that does not fit into main hdr */ |
| 72 | #define GNUTYPE_SPARSE 'S' /* sparse file */ |
| 73 | #define GNUTYPE_VOLHDR 'V' /* tape/volume header */ |
| 74 | |
| 75 | |
| 76 | /* tar header */ |
| 77 | |
| 78 | #define BLOCKSIZE 512 |
| 79 | #define SHORTNAMESIZE 100 |
| 80 | |
| 81 | struct tar_header |
| 82 | { /* byte offset */ |
| 83 | char name[100]; /* 0 */ |
| 84 | char mode[8]; /* 100 */ |
| 85 | char uid[8]; /* 108 */ |
| 86 | char gid[8]; /* 116 */ |
| 87 | char size[12]; /* 124 */ |
| 88 | char mtime[12]; /* 136 */ |
| 89 | char chksum[8]; /* 148 */ |
| 90 | char typeflag; /* 156 */ |
| 91 | char linkname[100]; /* 157 */ |
| 92 | char magic[6]; /* 257 */ |
| 93 | char version[2]; /* 263 */ |
| 94 | char uname[32]; /* 265 */ |
| 95 | char gname[32]; /* 297 */ |
| 96 | char devmajor[8]; /* 329 */ |
| 97 | char devminor[8]; /* 337 */ |
| 98 | char prefix[155]; /* 345 */ |
| 99 | /* 500 */ |
| 100 | }; |
| 101 | |
| 102 | union tar_buffer |
| 103 | { |
| 104 | char buffer[BLOCKSIZE]; |
| 105 | struct tar_header header; |
| 106 | }; |
| 107 | |
| 108 | struct attr_item |
| 109 | { |
| 110 | struct attr_item *next; |
| 111 | char *fname; |
| 112 | int mode; |
| 113 | time_t time; |
| 114 | }; |
| 115 | |
| 116 | enum { TGZ_EXTRACT, TGZ_LIST, TGZ_INVALID }; |
| 117 | |
| 118 | char *prog; |
| 119 | |
| 120 | void error(const char *msg) |
| 121 | { |
| 122 | fprintf(stderr, "%s: %s\n", prog, msg); |
| 123 | exit(1); |
| 124 | } |
| 125 | |
| 126 | const char *TGZsuffix[] = { "\0", ".tar", ".tar.gz", ".taz", ".tgz", NULL }; |
| 127 | |
| 128 | /* return the file name of the TGZ archive */ |
| 129 | /* or NULL if it does not exist */ |
| 130 | |
| 131 | char *TGZfname (const char *arcname) |
| 132 | { |
| 133 | static char buffer[1024]; |
| 134 | int origlen,i; |
| 135 | |
| 136 | strcpy(buffer,arcname); |
| 137 | origlen = strlen(buffer); |
| 138 | |
| 139 | for (i=0; TGZsuffix[i]; i++) |
| 140 | { |
| 141 | strcpy(buffer+origlen,TGZsuffix[i]); |
| 142 | if (access(buffer,F_OK) == 0) |
| 143 | return buffer; |
| 144 | } |
| 145 | return NULL; |
| 146 | } |
| 147 | |
| 148 | |
| 149 | /* error message for the filename */ |
| 150 | |
| 151 | void TGZnotfound (const char *arcname) |
| 152 | { |
| 153 | int i; |
| 154 | |
| 155 | fprintf(stderr,"%s: Couldn't find ",prog); |
| 156 | for (i=0;TGZsuffix[i];i++) |
| 157 | fprintf(stderr,(TGZsuffix[i+1]) ? "%s%s, " : "or %s%s\n", |
| 158 | arcname, |
| 159 | TGZsuffix[i]); |
| 160 | exit(1); |
| 161 | } |
| 162 | |
| 163 | |
| 164 | /* convert octal digits to int */ |
| 165 | /* on error return -1 */ |
| 166 | |
| 167 | int getoct (char *p,int width) |
| 168 | { |
| 169 | int result = 0; |
| 170 | char c; |
| 171 | |
| 172 | while (width--) |
| 173 | { |
| 174 | c = *p++; |
| 175 | if (c == 0) |
| 176 | break; |
| 177 | if (c == ' ') |
| 178 | continue; |
| 179 | if (c < '0' || c > '7') |
| 180 | return -1; |
| 181 | result = result * 8 + (c - '0'); |
| 182 | } |
| 183 | return result; |
| 184 | } |
| 185 | |
| 186 | |
| 187 | /* convert time_t to string */ |
| 188 | /* use the "YYYY/MM/DD hh:mm:ss" format */ |
| 189 | |
| 190 | char *strtime (time_t *t) |
| 191 | { |
| 192 | struct tm *local; |
| 193 | static char result[32]; |
| 194 | |
| 195 | local = localtime(t); |
| 196 | sprintf(result,"%4d/%02d/%02d %02d:%02d:%02d", |
| 197 | local->tm_year+1900, local->tm_mon+1, local->tm_mday, |
| 198 | local->tm_hour, local->tm_min, local->tm_sec); |
| 199 | return result; |
| 200 | } |
| 201 | |
| 202 | |
| 203 | /* set file time */ |
| 204 | |
| 205 | int setfiletime (char *fname,time_t ftime) |
| 206 | { |
| 207 | #ifdef _WIN32 |
| 208 | static int isWinNT = -1; |
| 209 | SYSTEMTIME st; |
| 210 | FILETIME locft, modft; |
| 211 | struct tm *loctm; |
| 212 | HANDLE hFile; |
| 213 | int result; |
| 214 | |
| 215 | loctm = localtime(&ftime); |
| 216 | if (loctm == NULL) |
| 217 | return -1; |
| 218 | |
| 219 | st.wYear = (WORD)loctm->tm_year + 1900; |
| 220 | st.wMonth = (WORD)loctm->tm_mon + 1; |
| 221 | st.wDayOfWeek = (WORD)loctm->tm_wday; |
| 222 | st.wDay = (WORD)loctm->tm_mday; |
| 223 | st.wHour = (WORD)loctm->tm_hour; |
| 224 | st.wMinute = (WORD)loctm->tm_min; |
| 225 | st.wSecond = (WORD)loctm->tm_sec; |
| 226 | st.wMilliseconds = 0; |
| 227 | if (!SystemTimeToFileTime(&st, &locft) || |
| 228 | !LocalFileTimeToFileTime(&locft, &modft)) |
| 229 | return -1; |
| 230 | |
| 231 | if (isWinNT < 0) |
| 232 | isWinNT = (GetVersion() < 0x80000000) ? 1 : 0; |
| 233 | hFile = CreateFile(fname, GENERIC_WRITE, 0, NULL, OPEN_EXISTING, |
| 234 | (isWinNT ? FILE_FLAG_BACKUP_SEMANTICS : 0), |
| 235 | NULL); |
| 236 | if (hFile == INVALID_HANDLE_VALUE) |
| 237 | return -1; |
| 238 | result = SetFileTime(hFile, NULL, NULL, &modft) ? 0 : -1; |
| 239 | CloseHandle(hFile); |
| 240 | return result; |
| 241 | #else |
| 242 | struct utimbuf settime; |
| 243 | |
| 244 | settime.actime = settime.modtime = ftime; |
| 245 | return utime(fname,&settime); |
| 246 | #endif |
| 247 | } |
| 248 | |
| 249 | |
| 250 | /* push file attributes */ |
| 251 | |
| 252 | void push_attr(struct attr_item **list,char *fname,int mode,time_t time) |
| 253 | { |
| 254 | struct attr_item *item; |
| 255 | |
| 256 | item = (struct attr_item *)malloc(sizeof(struct attr_item)); |
| 257 | if (item == NULL) |
| 258 | error("Out of memory"); |
| 259 | item->fname = strdup(fname); |
| 260 | item->mode = mode; |
| 261 | item->time = time; |
| 262 | item->next = *list; |
| 263 | *list = item; |
| 264 | } |
| 265 | |
| 266 | |
| 267 | /* restore file attributes */ |
| 268 | |
| 269 | void restore_attr(struct attr_item **list) |
| 270 | { |
| 271 | struct attr_item *item, *prev; |
| 272 | |
| 273 | for (item = *list; item != NULL; ) |
| 274 | { |
| 275 | setfiletime(item->fname,item->time); |
| 276 | chmod(item->fname,item->mode); |
| 277 | prev = item; |
| 278 | item = item->next; |
| 279 | free(prev); |
| 280 | } |
| 281 | *list = NULL; |
| 282 | } |
| 283 | |
| 284 | |
| 285 | /* match regular expression */ |
| 286 | |
| 287 | #define ISSPECIAL(c) (((c) == '*') || ((c) == '/')) |
| 288 | |
| 289 | int ExprMatch (char *string,char *expr) |
| 290 | { |
| 291 | while (1) |
| 292 | { |
| 293 | if (ISSPECIAL(*expr)) |
| 294 | { |
| 295 | if (*expr == '/') |
| 296 | { |
| 297 | if (*string != '\\' && *string != '/') |
| 298 | return 0; |
| 299 | string ++; expr++; |
| 300 | } |
| 301 | else if (*expr == '*') |
| 302 | { |
| 303 | if (*expr ++ == 0) |
| 304 | return 1; |
| 305 | while (*++string != *expr) |
| 306 | if (*string == 0) |
| 307 | return 0; |
| 308 | } |
| 309 | } |
| 310 | else |
| 311 | { |
| 312 | if (*string != *expr) |
| 313 | return 0; |
| 314 | if (*expr++ == 0) |
| 315 | return 1; |
| 316 | string++; |
| 317 | } |
| 318 | } |
| 319 | } |
| 320 | |
| 321 | |
| 322 | /* recursive mkdir */ |
| 323 | /* abort on ENOENT; ignore other errors like "directory already exists" */ |
| 324 | /* return 1 if OK */ |
| 325 | /* 0 on error */ |
| 326 | |
| 327 | int makedir (char *newdir) |
| 328 | { |
| 329 | char *buffer = strdup(newdir); |
| 330 | char *p; |
| 331 | int len = strlen(buffer); |
| 332 | |
| 333 | if (len <= 0) { |
| 334 | free(buffer); |
| 335 | return 0; |
| 336 | } |
| 337 | if (buffer[len-1] == '/') { |
| 338 | buffer[len-1] = '\0'; |
| 339 | } |
| 340 | if (mkdir(buffer, 0755) == 0) |
| 341 | { |
| 342 | free(buffer); |
| 343 | return 1; |
| 344 | } |
| 345 | |
| 346 | p = buffer+1; |
| 347 | while (1) |
| 348 | { |
| 349 | char hold; |
| 350 | |
| 351 | while(*p && *p != '\\' && *p != '/') |
| 352 | p++; |
| 353 | hold = *p; |
| 354 | *p = 0; |
| 355 | if ((mkdir(buffer, 0755) == -1) && (errno == ENOENT)) |
| 356 | { |
| 357 | fprintf(stderr,"%s: Couldn't create directory %s\n",prog,buffer); |
| 358 | free(buffer); |
| 359 | return 0; |
| 360 | } |
| 361 | if (hold == 0) |
| 362 | break; |
| 363 | *p++ = hold; |
| 364 | } |
| 365 | free(buffer); |
| 366 | return 1; |
| 367 | } |
| 368 | |
| 369 | |
| 370 | int matchname (int arg,int argc,char **argv,char *fname) |
| 371 | { |
| 372 | if (arg == argc) /* no arguments given (untgz tgzarchive) */ |
| 373 | return 1; |
| 374 | |
| 375 | while (arg < argc) |
| 376 | if (ExprMatch(fname,argv[arg++])) |
| 377 | return 1; |
| 378 | |
| 379 | return 0; /* ignore this for the moment being */ |
| 380 | } |
| 381 | |
| 382 | |
| 383 | /* tar file list or extract */ |
| 384 | |
| 385 | int tar (gzFile in,int action,int arg,int argc,char **argv) |
| 386 | { |
| 387 | union tar_buffer buffer; |
| 388 | int len; |
| 389 | int err; |
| 390 | int getheader = 1; |
| 391 | int remaining = 0; |
| 392 | FILE *outfile = NULL; |
| 393 | char fname[BLOCKSIZE]; |
| 394 | int tarmode; |
| 395 | time_t tartime; |
| 396 | struct attr_item *attributes = NULL; |
| 397 | |
| 398 | if (action == TGZ_LIST) |
| 399 | printf(" date time size file\n" |
| 400 | " ---------- -------- --------- -------------------------------------\n"); |
| 401 | while (1) |
| 402 | { |
| 403 | len = gzread(in, &buffer, BLOCKSIZE); |
| 404 | if (len < 0) |
| 405 | error(gzerror(in, &err)); |
| 406 | /* |
| 407 | * Always expect complete blocks to process |
| 408 | * the tar information. |
| 409 | */ |
| 410 | if (len != BLOCKSIZE) |
| 411 | { |
| 412 | action = TGZ_INVALID; /* force error exit */ |
| 413 | remaining = 0; /* force I/O cleanup */ |
| 414 | } |
| 415 | |
| 416 | /* |
| 417 | * If we have to get a tar header |
| 418 | */ |
| 419 | if (getheader >= 1) |
| 420 | { |
| 421 | /* |
| 422 | * if we met the end of the tar |
| 423 | * or the end-of-tar block, |
| 424 | * we are done |
| 425 | */ |
| 426 | if (len == 0 || buffer.header.name[0] == 0) |
| 427 | break; |
| 428 | |
| 429 | tarmode = getoct(buffer.header.mode,8); |
| 430 | tartime = (time_t)getoct(buffer.header.mtime,12); |
| 431 | if (tarmode == -1 || tartime == (time_t)-1) |
| 432 | { |
| 433 | buffer.header.name[0] = 0; |
| 434 | action = TGZ_INVALID; |
| 435 | } |
| 436 | |
| 437 | if (getheader == 1) |
| 438 | { |
| 439 | strncpy(fname,buffer.header.name,SHORTNAMESIZE); |
| 440 | if (fname[SHORTNAMESIZE-1] != 0) |
| 441 | fname[SHORTNAMESIZE] = 0; |
| 442 | } |
| 443 | else |
| 444 | { |
| 445 | /* |
| 446 | * The file name is longer than SHORTNAMESIZE |
| 447 | */ |
| 448 | if (strncmp(fname,buffer.header.name,SHORTNAMESIZE-1) != 0) |
| 449 | error("bad long name"); |
| 450 | getheader = 1; |
| 451 | } |
| 452 | |
| 453 | /* |
| 454 | * Act according to the type flag |
| 455 | */ |
| 456 | switch (buffer.header.typeflag) |
| 457 | { |
| 458 | case DIRTYPE: |
| 459 | if (action == TGZ_LIST) |
| 460 | printf(" %s <dir> %s\n",strtime(&tartime),fname); |
| 461 | if (action == TGZ_EXTRACT) |
| 462 | { |
| 463 | makedir(fname); |
| 464 | push_attr(&attributes,fname,tarmode,tartime); |
| 465 | } |
| 466 | break; |
| 467 | case REGTYPE: |
| 468 | case AREGTYPE: |
| 469 | remaining = getoct(buffer.header.size,12); |
| 470 | if (remaining == -1) |
| 471 | { |
| 472 | action = TGZ_INVALID; |
| 473 | break; |
| 474 | } |
| 475 | if (action == TGZ_LIST) |
| 476 | printf(" %s %9d %s\n",strtime(&tartime),remaining,fname); |
| 477 | else if (action == TGZ_EXTRACT) |
| 478 | { |
| 479 | if (matchname(arg,argc,argv,fname)) |
| 480 | { |
| 481 | outfile = fopen(fname,"wb"); |
| 482 | if (outfile == NULL) { |
| 483 | /* try creating directory */ |
| 484 | char *p = strrchr(fname, '/'); |
| 485 | if (p != NULL) { |
| 486 | *p = '\0'; |
| 487 | makedir(fname); |
| 488 | *p = '/'; |
| 489 | outfile = fopen(fname,"wb"); |
| 490 | } |
| 491 | } |
| 492 | if (outfile != NULL) |
| 493 | printf("Extracting %s\n",fname); |
| 494 | else |
| 495 | fprintf(stderr, "%s: Couldn't create %s",prog,fname); |
| 496 | } |
| 497 | else |
| 498 | outfile = NULL; |
| 499 | } |
| 500 | getheader = 0; |
| 501 | break; |
| 502 | case GNUTYPE_LONGLINK: |
| 503 | case GNUTYPE_LONGNAME: |
| 504 | remaining = getoct(buffer.header.size,12); |
| 505 | if (remaining < 0 || remaining >= BLOCKSIZE) |
| 506 | { |
| 507 | action = TGZ_INVALID; |
| 508 | break; |
| 509 | } |
| 510 | len = gzread(in, fname, BLOCKSIZE); |
| 511 | if (len < 0) |
| 512 | error(gzerror(in, &err)); |
| 513 | if (fname[BLOCKSIZE-1] != 0 || (int)strlen(fname) > remaining) |
| 514 | { |
| 515 | action = TGZ_INVALID; |
| 516 | break; |
| 517 | } |
| 518 | getheader = 2; |
| 519 | break; |
| 520 | default: |
| 521 | if (action == TGZ_LIST) |
| 522 | printf(" %s <---> %s\n",strtime(&tartime),fname); |
| 523 | break; |
| 524 | } |
| 525 | } |
| 526 | else |
| 527 | { |
| 528 | unsigned int bytes = (remaining > BLOCKSIZE) ? BLOCKSIZE : remaining; |
| 529 | |
| 530 | if (outfile != NULL) |
| 531 | { |
| 532 | if (fwrite(&buffer,sizeof(char),bytes,outfile) != bytes) |
| 533 | { |
| 534 | fprintf(stderr, |
| 535 | "%s: Error writing %s -- skipping\n",prog,fname); |
| 536 | fclose(outfile); |
| 537 | outfile = NULL; |
| 538 | remove(fname); |
| 539 | } |
| 540 | } |
| 541 | remaining -= bytes; |
| 542 | } |
| 543 | |
| 544 | if (remaining == 0) |
| 545 | { |
| 546 | getheader = 1; |
| 547 | if (outfile != NULL) |
| 548 | { |
| 549 | fclose(outfile); |
| 550 | outfile = NULL; |
| 551 | if (action != TGZ_INVALID) |
| 552 | push_attr(&attributes,fname,tarmode,tartime); |
| 553 | } |
| 554 | } |
| 555 | |
| 556 | /* |
| 557 | * Abandon if errors are found |
| 558 | */ |
| 559 | if (action == TGZ_INVALID) |
| 560 | { |
| 561 | error("broken archive"); |
| 562 | break; |
| 563 | } |
| 564 | } |
| 565 | |
| 566 | /* |
| 567 | * Restore file modes and time stamps |
| 568 | */ |
| 569 | restore_attr(&attributes); |
| 570 | |
| 571 | if (gzclose(in) != Z_OK) |
| 572 | error("failed gzclose"); |
| 573 | |
| 574 | return 0; |
| 575 | } |
| 576 | |
| 577 | |
| 578 | /* ============================================================ */ |
| 579 | |
| 580 | void help(int exitval) |
| 581 | { |
| 582 | printf("untgz version 0.2.1\n" |
| 583 | " using zlib version %s\n\n", |
| 584 | zlibVersion()); |
| 585 | printf("Usage: untgz file.tgz extract all files\n" |
| 586 | " untgz file.tgz fname ... extract selected files\n" |
| 587 | " untgz -l file.tgz list archive contents\n" |
| 588 | " untgz -h display this help\n"); |
| 589 | exit(exitval); |
| 590 | } |
| 591 | |
| 592 | |
| 593 | /* ============================================================ */ |
| 594 | |
| 595 | #if defined(WIN32) && defined(__GNUC__) |
| 596 | int _CRT_glob = 0; /* disable argument globbing in MinGW */ |
| 597 | #endif |
| 598 | |
| 599 | int main(int argc,char **argv) |
| 600 | { |
| 601 | int action = TGZ_EXTRACT; |
| 602 | int arg = 1; |
| 603 | char *TGZfile; |
| 604 | gzFile f; |
| 605 | |
| 606 | prog = strrchr(argv[0],'\\'); |
| 607 | if (prog == NULL) |
| 608 | { |
| 609 | prog = strrchr(argv[0],'/'); |
| 610 | if (prog == NULL) |
| 611 | { |
| 612 | prog = strrchr(argv[0],':'); |
| 613 | if (prog == NULL) |
| 614 | prog = argv[0]; |
| 615 | else |
| 616 | prog++; |
| 617 | } |
| 618 | else |
| 619 | prog++; |
| 620 | } |
| 621 | else |
| 622 | prog++; |
| 623 | |
| 624 | if (argc == 1) |
| 625 | help(0); |
| 626 | |
| 627 | if (strcmp(argv[arg],"-l") == 0) |
| 628 | { |
| 629 | action = TGZ_LIST; |
| 630 | if (argc == ++arg) |
| 631 | help(0); |
| 632 | } |
| 633 | else if (strcmp(argv[arg],"-h") == 0) |
| 634 | { |
| 635 | help(0); |
| 636 | } |
| 637 | |
| 638 | if ((TGZfile = TGZfname(argv[arg])) == NULL) |
| 639 | TGZnotfound(argv[arg]); |
| 640 | |
| 641 | ++arg; |
| 642 | if ((action == TGZ_LIST) && (arg != argc)) |
| 643 | help(1); |
| 644 | |
| 645 | /* |
| 646 | * Process the TGZ file |
| 647 | */ |
| 648 | switch(action) |
| 649 | { |
| 650 | case TGZ_LIST: |
| 651 | case TGZ_EXTRACT: |
| 652 | f = gzopen(TGZfile,"rb"); |
| 653 | if (f == NULL) |
| 654 | { |
| 655 | fprintf(stderr,"%s: Couldn't gzopen %s\n",prog,TGZfile); |
| 656 | return 1; |
| 657 | } |
| 658 | exit(tar(f, action, arg, argc, argv)); |
| 659 | break; |
| 660 | |
| 661 | default: |
| 662 | error("Unknown option"); |
| 663 | exit(1); |
| 664 | } |
| 665 | |
| 666 | return 0; |
| 667 | } |