| File: | src/bin/pax/options.c |
| Warning: | line 1528, column 9 Although the value stored to 'endpt' is used in the enclosing expression, the value is never actually read from 'endpt' |
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| 1 | /* $OpenBSD: options.c,v 1.107 2023/12/09 23:00:11 jca Exp $ */ |
| 2 | /* $NetBSD: options.c,v 1.6 1996/03/26 23:54:18 mrg Exp $ */ |
| 3 | |
| 4 | /*- |
| 5 | * Copyright (c) 1992 Keith Muller. |
| 6 | * Copyright (c) 1992, 1993 |
| 7 | * The Regents of the University of California. All rights reserved. |
| 8 | * |
| 9 | * This code is derived from software contributed to Berkeley by |
| 10 | * Keith Muller of the University of California, San Diego. |
| 11 | * |
| 12 | * Redistribution and use in source and binary forms, with or without |
| 13 | * modification, are permitted provided that the following conditions |
| 14 | * are met: |
| 15 | * 1. Redistributions of source code must retain the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer. |
| 17 | * 2. Redistributions in binary form must reproduce the above copyright |
| 18 | * notice, this list of conditions and the following disclaimer in the |
| 19 | * documentation and/or other materials provided with the distribution. |
| 20 | * 3. Neither the name of the University nor the names of its contributors |
| 21 | * may be used to endorse or promote products derived from this software |
| 22 | * without specific prior written permission. |
| 23 | * |
| 24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 34 | * SUCH DAMAGE. |
| 35 | */ |
| 36 | |
| 37 | #include <sys/types.h> |
| 38 | #include <sys/stat.h> |
| 39 | #include <errno(*__errno()).h> |
| 40 | #include <limits.h> |
| 41 | #include <paths.h> |
| 42 | #include <stdio.h> |
| 43 | #include <stdlib.h> |
| 44 | #include <string.h> |
| 45 | #include <unistd.h> |
| 46 | |
| 47 | #include "pax.h" |
| 48 | #include "cpio.h" |
| 49 | #include "tar.h" |
| 50 | #include "extern.h" |
| 51 | |
| 52 | static int bad_opt(void); |
| 53 | static int opt_add(const char *); |
| 54 | /* |
| 55 | * argv[0] names. Used for tar and cpio emulation |
| 56 | */ |
| 57 | |
| 58 | #define NM_TAR"tar" "tar" |
| 59 | #define NM_CPIO"cpio" "cpio" |
| 60 | #define NM_PAX"pax" "pax" |
| 61 | |
| 62 | /* |
| 63 | * Constants used to specify the legal sets of flags in pax. For each major |
| 64 | * operation mode of pax, a set of illegal flags is defined. If any one of |
| 65 | * those illegal flags are found set, we scream and exit |
| 66 | */ |
| 67 | |
| 68 | /* |
| 69 | * flags (one for each option). |
| 70 | */ |
| 71 | #define AF0x00000001 0x00000001 |
| 72 | #define BF0x00000002 0x00000002 |
| 73 | #define CF0x00000004 0x00000004 |
| 74 | #define DF0x00000008 0x00000008 |
| 75 | #define FF0x00000010 0x00000010 |
| 76 | #define IF0x00000020 0x00000020 |
| 77 | #define KF0x00000040 0x00000040 |
| 78 | #define LF0x00000080 0x00000080 |
| 79 | #define NF0x00000100 0x00000100 |
| 80 | #define OF0x00000200 0x00000200 |
| 81 | #define PF0x00000400 0x00000400 |
| 82 | #define RF0x00000800 0x00000800 |
| 83 | #define SF0x00001000 0x00001000 |
| 84 | #define TF0x00002000 0x00002000 |
| 85 | #define UF0x00004000 0x00004000 |
| 86 | #define VF0x00008000 0x00008000 |
| 87 | #define WF0x00010000 0x00010000 |
| 88 | #define XF0x00020000 0x00020000 |
| 89 | #define CBF0x00040000 0x00040000 /* nonstandard extension */ |
| 90 | #define CDF0x00080000 0x00080000 /* nonstandard extension */ |
| 91 | #define CEF0x00100000 0x00100000 /* nonstandard extension */ |
| 92 | #define CGF0x00200000 0x00200000 /* nonstandard extension */ |
| 93 | #define CHF0x00400000 0x00400000 /* nonstandard extension */ |
| 94 | #define CLF0x00800000 0x00800000 /* nonstandard extension */ |
| 95 | #define CPF0x01000000 0x01000000 /* nonstandard extension */ |
| 96 | #define CTF0x02000000 0x02000000 /* nonstandard extension */ |
| 97 | #define CUF0x04000000 0x04000000 /* nonstandard extension */ |
| 98 | #define CXF0x08000000 0x08000000 |
| 99 | #define CYF0x10000000 0x10000000 /* nonstandard extension */ |
| 100 | #define CZF0x20000000 0x20000000 /* nonstandard extension */ |
| 101 | #define C0F0x40000000 0x40000000 /* nonstandard extension */ |
| 102 | |
| 103 | /* |
| 104 | * ascii string indexed by bit position above (alter the above and you must |
| 105 | * alter this string) used to tell the user what flags caused us to complain |
| 106 | */ |
| 107 | #define FLGCH"abcdfiklnoprstuvwxBDEGHLPTUXYZ0" "abcdfiklnoprstuvwxBDEGHLPTUXYZ0" |
| 108 | |
| 109 | /* |
| 110 | * legal pax operation bit patterns |
| 111 | */ |
| 112 | |
| 113 | #define ISLIST(x)(((x) & (0x00000800|0x00010000)) == 0) (((x) & (RF0x00000800|WF0x00010000)) == 0) |
| 114 | #define ISEXTRACT(x)(((x) & (0x00000800|0x00010000)) == 0x00000800) (((x) & (RF0x00000800|WF0x00010000)) == RF0x00000800) |
| 115 | #define ISARCHIVE(x)(((x) & (0x00000001|0x00000800|0x00010000)) == 0x00010000 ) (((x) & (AF0x00000001|RF0x00000800|WF0x00010000)) == WF0x00010000) |
| 116 | #define ISAPPND(x)(((x) & (0x00000001|0x00000800|0x00010000)) == (0x00000001 |0x00010000)) (((x) & (AF0x00000001|RF0x00000800|WF0x00010000)) == (AF0x00000001|WF0x00010000)) |
| 117 | #define ISCOPY(x)(((x) & (0x00000800|0x00010000)) == (0x00000800|0x00010000 )) (((x) & (RF0x00000800|WF0x00010000)) == (RF0x00000800|WF0x00010000)) |
| 118 | #define ISWRITE(x)(((x) & (0x00000800|0x00010000)) == 0x00010000) (((x) & (RF0x00000800|WF0x00010000)) == WF0x00010000) |
| 119 | |
| 120 | /* |
| 121 | * Illegal option flag subsets based on pax operation |
| 122 | */ |
| 123 | |
| 124 | #define BDEXTR(0x00000001|0x00000002|0x00000080|0x00002000|0x00010000|0x00020000 |0x00040000|0x00400000|0x00800000|0x01000000|0x08000000) (AF0x00000001|BF0x00000002|LF0x00000080|TF0x00002000|WF0x00010000|XF0x00020000|CBF0x00040000|CHF0x00400000|CLF0x00800000|CPF0x01000000|CXF0x08000000) |
| 125 | #define BDARCH(0x00000004|0x00000040|0x00000080|0x00000100|0x00000400|0x00000800 |0x00080000|0x00100000|0x10000000|0x20000000) (CF0x00000004|KF0x00000040|LF0x00000080|NF0x00000100|PF0x00000400|RF0x00000800|CDF0x00080000|CEF0x00100000|CYF0x10000000|CZF0x20000000) |
| 126 | #define BDCOPY(0x00000001|0x00000002|0x00000010|0x00000200|0x00020000|0x00040000 |0x00100000) (AF0x00000001|BF0x00000002|FF0x00000010|OF0x00000200|XF0x00020000|CBF0x00040000|CEF0x00100000) |
| 127 | #define BDLIST(0x00000001|0x00000002|0x00000020|0x00000040|0x00000080|0x00000200 |0x00000400|0x00000800|0x00002000|0x00004000|0x00010000|0x00020000 |0x00040000|0x00080000|0x00400000|0x00800000|0x01000000|0x08000000 |0x10000000|0x20000000) (AF0x00000001|BF0x00000002|IF0x00000020|KF0x00000040|LF0x00000080|OF0x00000200|PF0x00000400|RF0x00000800|TF0x00002000|UF0x00004000|WF0x00010000|XF0x00020000|CBF0x00040000|CDF0x00080000|CHF0x00400000|CLF0x00800000|CPF0x01000000|CXF0x08000000|CYF0x10000000|CZF0x20000000) |
| 128 | |
| 129 | |
| 130 | /* |
| 131 | * Routines which handle command line options |
| 132 | */ |
| 133 | |
| 134 | static char flgch[] = FLGCH"abcdfiklnoprstuvwxBDEGHLPTUXYZ0"; /* list of all possible flags */ |
| 135 | static OPLIST *ophead = NULL((void *)0); /* head for format specific options -x */ |
| 136 | static OPLIST *optail = NULL((void *)0); /* option tail */ |
| 137 | |
| 138 | static int no_op(void); |
| 139 | static void printflg(unsigned int); |
| 140 | static off_t str_offt(char *); |
| 141 | static char *get_line(FILE *fp); |
| 142 | static void pax_options(int, char **); |
| 143 | static void pax_usage(void); |
| 144 | static void tar_options(int, char **); |
| 145 | static void tar_usage(void); |
| 146 | #ifndef NOCPIO |
| 147 | static void cpio_options(int, char **); |
| 148 | static void cpio_usage(void); |
| 149 | #endif |
| 150 | |
| 151 | static int compress_id(char *_blk, int _size); |
| 152 | static int gzip_id(char *_blk, int _size); |
| 153 | static int bzip2_id(char *_blk, int _size); |
| 154 | static int xz_id(char *_blk, int _size); |
| 155 | |
| 156 | #define GZIP_CMD"gzip" "gzip" /* command to run as gzip */ |
| 157 | #define COMPRESS_CMD"compress" "compress" /* command to run as compress */ |
| 158 | #define BZIP2_CMD"bzip2" "bzip2" /* command to run as bzip2 */ |
| 159 | |
| 160 | /* |
| 161 | * Format specific routine table |
| 162 | * (see pax.h for description of each function) |
| 163 | * |
| 164 | * name, blksz, hdsz, udev, hlk, blkagn, inhead, id, st_read, |
| 165 | * read, end_read, st_write, write, end_write, trail, |
| 166 | * rd_data, wr_data, options |
| 167 | */ |
| 168 | |
| 169 | FSUB fsub[] = { |
| 170 | #ifdef NOCPIO |
| 171 | /* 0: OLD BINARY CPIO */ |
| 172 | { }, |
| 173 | /* 1: OLD OCTAL CHARACTER CPIO */ |
| 174 | { }, |
| 175 | /* 2: SVR4 HEX CPIO */ |
| 176 | { }, |
| 177 | /* 3: SVR4 HEX CPIO WITH CRC */ |
| 178 | { }, |
| 179 | #else |
| 180 | /* 0: OLD BINARY CPIO */ |
| 181 | {"bcpio", 5120, sizeof(HD_BCPIO), 1, 0, 0, 1, bcpio_id, cpio_strd, |
| 182 | bcpio_rd, bcpio_endrd, cpio_stwr, bcpio_wr, cpio_endwr, cpio_trail, |
| 183 | bad_opt}, |
| 184 | |
| 185 | /* 1: OLD OCTAL CHARACTER CPIO */ |
| 186 | {"cpio", 5120, sizeof(HD_CPIO), 1, 0, 0, 1, cpio_id, cpio_strd, |
| 187 | cpio_rd, cpio_endrd, cpio_stwr, cpio_wr, cpio_endwr, cpio_trail, |
| 188 | bad_opt}, |
| 189 | |
| 190 | /* 2: SVR4 HEX CPIO */ |
| 191 | {"sv4cpio", 5120, sizeof(HD_VCPIO), 1, 0, 0, 1, vcpio_id, cpio_strd, |
| 192 | vcpio_rd, vcpio_endrd, cpio_stwr, vcpio_wr, cpio_endwr, cpio_trail, |
| 193 | bad_opt}, |
| 194 | |
| 195 | /* 3: SVR4 HEX CPIO WITH CRC */ |
| 196 | {"sv4crc", 5120, sizeof(HD_VCPIO), 1, 0, 0, 1, crc_id, crc_strd, |
| 197 | vcpio_rd, vcpio_endrd, crc_stwr, vcpio_wr, cpio_endwr, cpio_trail, |
| 198 | bad_opt}, |
| 199 | #endif |
| 200 | /* 4: OLD TAR */ |
| 201 | {"tar", 10240, BLKMULT512, 0, 1, BLKMULT512, 0, tar_id, no_op, |
| 202 | tar_rd, tar_endrd, no_op, tar_wr, tar_endwr, tar_trail, |
| 203 | tar_opt}, |
| 204 | |
| 205 | /* 5: POSIX USTAR */ |
| 206 | {"ustar", 10240, BLKMULT512, 0, 1, BLKMULT512, 0, ustar_id, no_op, |
| 207 | ustar_rd, tar_endrd, no_op, ustar_wr, tar_endwr, tar_trail, |
| 208 | tar_opt}, |
| 209 | |
| 210 | #ifdef SMALL |
| 211 | /* 6: compress, to detect failure to use -Z */ |
| 212 | { }, |
| 213 | /* 7: xz, to detect failure to decompress it */ |
| 214 | { }, |
| 215 | /* 8: bzip2, to detect failure to use -j */ |
| 216 | { }, |
| 217 | /* 9: gzip, to detect failure to use -z */ |
| 218 | { }, |
| 219 | /* 10: POSIX PAX */ |
| 220 | { }, |
| 221 | #else |
| 222 | /* 6: compress, to detect failure to use -Z */ |
| 223 | {NULL((void *)0), 0, 4, 0, 0, 0, 0, compress_id}, |
| 224 | /* 7: xz, to detect failure to decompress it */ |
| 225 | {NULL((void *)0), 0, 4, 0, 0, 0, 0, xz_id}, |
| 226 | /* 8: bzip2, to detect failure to use -j */ |
| 227 | {NULL((void *)0), 0, 4, 0, 0, 0, 0, bzip2_id}, |
| 228 | /* 9: gzip, to detect failure to use -z */ |
| 229 | {NULL((void *)0), 0, 4, 0, 0, 0, 0, gzip_id}, |
| 230 | /* 10: POSIX PAX */ |
| 231 | {"pax", 5120, BLKMULT512, 0, 1, BLKMULT512, 0, ustar_id, no_op, |
| 232 | ustar_rd, tar_endrd, no_op, pax_wr, tar_endwr, tar_trail, |
| 233 | tar_opt}, |
| 234 | #endif |
| 235 | }; |
| 236 | #define F_OCPIO0 0 /* format when called as cpio -6 */ |
| 237 | #define F_ACPIO1 1 /* format when called as cpio -c */ |
| 238 | #define F_CPIO3 3 /* format when called as cpio */ |
| 239 | #define F_OTAR4 4 /* format when called as tar -o */ |
| 240 | #define F_TAR5 5 /* format when called as tar */ |
| 241 | #define DEFLT5 5 /* default write format from list above */ |
| 242 | |
| 243 | /* |
| 244 | * ford is the archive search order used by get_arc() to determine what kind |
| 245 | * of archive we are dealing with. This helps to properly id archive formats |
| 246 | * some formats may be subsets of others.... |
| 247 | */ |
| 248 | int ford[] = {5, 4, 9, 8, 7, 6, 3, 2, 1, 0, -1}; |
| 249 | |
| 250 | /* |
| 251 | * Do we have -C anywhere and what is it? |
| 252 | */ |
| 253 | int havechd = 0; |
| 254 | char *chdname = NULL((void *)0); |
| 255 | |
| 256 | /* |
| 257 | * options() |
| 258 | * figure out if we are pax, tar or cpio. Call the appropriate options |
| 259 | * parser |
| 260 | */ |
| 261 | |
| 262 | void |
| 263 | options(int argc, char **argv) |
| 264 | { |
| 265 | extern char *__progname; |
| 266 | |
| 267 | /* |
| 268 | * Are we acting like pax, tar or cpio (based on argv[0]) |
| 269 | */ |
| 270 | argv0 = __progname; |
| 271 | |
| 272 | if (strcmp(NM_TAR"tar", argv0) == 0) { |
| 273 | op_mode = OP_TAR; |
| 274 | tar_options(argc, argv); |
| 275 | return; |
| 276 | } |
| 277 | #ifndef NOCPIO |
| 278 | else if (strcmp(NM_CPIO"cpio", argv0) == 0) { |
| 279 | op_mode = OP_CPIO; |
| 280 | cpio_options(argc, argv); |
| 281 | return; |
| 282 | } |
| 283 | #endif /* !NOCPIO */ |
| 284 | /* |
| 285 | * assume pax as the default |
| 286 | */ |
| 287 | argv0 = NM_PAX"pax"; |
| 288 | op_mode = OP_PAX; |
| 289 | pax_options(argc, argv); |
| 290 | } |
| 291 | |
| 292 | /* |
| 293 | * pax_options() |
| 294 | * look at the user specified flags. set globals as required and check if |
| 295 | * the user specified a legal set of flags. If not, complain and exit |
| 296 | */ |
| 297 | |
| 298 | static void |
| 299 | pax_options(int argc, char **argv) |
| 300 | { |
| 301 | int c; |
| 302 | unsigned i; |
| 303 | unsigned int flg = 0; |
| 304 | unsigned int bflg = 0; |
| 305 | const char *errstr; |
| 306 | char *pt; |
| 307 | |
| 308 | /* |
| 309 | * process option flags |
| 310 | */ |
| 311 | while ((c=getopt(argc,argv,"ab:cdf:ijklno:p:rs:tuvwx:zB:DE:G:HLOPT:U:XYZ0")) |
| 312 | != -1) { |
| 313 | switch (c) { |
| 314 | case 'a': |
| 315 | /* |
| 316 | * append |
| 317 | */ |
| 318 | flg |= AF0x00000001; |
| 319 | break; |
| 320 | case 'b': |
| 321 | /* |
| 322 | * specify blocksize |
| 323 | */ |
| 324 | flg |= BF0x00000002; |
| 325 | if ((wrblksz = (int)str_offt(optarg)) <= 0) { |
| 326 | paxwarn(1, "Invalid block size %s", optarg); |
| 327 | pax_usage(); |
| 328 | } |
| 329 | break; |
| 330 | case 'c': |
| 331 | /* |
| 332 | * inverse match on patterns |
| 333 | */ |
| 334 | cflag = 1; |
| 335 | flg |= CF0x00000004; |
| 336 | break; |
| 337 | case 'd': |
| 338 | /* |
| 339 | * match only dir on extract, not the subtree at dir |
| 340 | */ |
| 341 | dflag = 1; |
| 342 | flg |= DF0x00000008; |
| 343 | break; |
| 344 | case 'f': |
| 345 | /* |
| 346 | * filename where the archive is stored |
| 347 | */ |
| 348 | arcname = optarg; |
| 349 | flg |= FF0x00000010; |
| 350 | break; |
| 351 | case 'i': |
| 352 | /* |
| 353 | * interactive file rename |
| 354 | */ |
| 355 | iflag = 1; |
| 356 | flg |= IF0x00000020; |
| 357 | break; |
| 358 | case 'j': |
| 359 | /* |
| 360 | * use bzip2. Non standard option. |
| 361 | */ |
| 362 | gzip_program = BZIP2_CMD"bzip2"; |
| 363 | break; |
| 364 | case 'k': |
| 365 | /* |
| 366 | * do not clobber files that exist |
| 367 | */ |
| 368 | kflag = 1; |
| 369 | flg |= KF0x00000040; |
| 370 | break; |
| 371 | case 'l': |
| 372 | /* |
| 373 | * try to link src to dest with copy (-rw) |
| 374 | */ |
| 375 | lflag = 1; |
| 376 | flg |= LF0x00000080; |
| 377 | break; |
| 378 | case 'n': |
| 379 | /* |
| 380 | * select first match for a pattern only |
| 381 | */ |
| 382 | nflag = 1; |
| 383 | flg |= NF0x00000100; |
| 384 | break; |
| 385 | case 'o': |
| 386 | /* |
| 387 | * pass format specific options |
| 388 | */ |
| 389 | flg |= OF0x00000200; |
| 390 | if (opt_add(optarg) < 0) |
| 391 | pax_usage(); |
| 392 | break; |
| 393 | case 'p': |
| 394 | /* |
| 395 | * specify file characteristic options |
| 396 | */ |
| 397 | for (pt = optarg; *pt != '\0'; ++pt) { |
| 398 | switch (*pt) { |
| 399 | case 'a': |
| 400 | /* |
| 401 | * do not preserve access time |
| 402 | */ |
| 403 | patime = 0; |
| 404 | break; |
| 405 | case 'e': |
| 406 | /* |
| 407 | * preserve user id, group id, file |
| 408 | * mode, access/modification times |
| 409 | */ |
| 410 | pids = 1; |
| 411 | pmode = 1; |
| 412 | patime = 1; |
| 413 | pmtime = 1; |
| 414 | break; |
| 415 | case 'm': |
| 416 | /* |
| 417 | * do not preserve modification time |
| 418 | */ |
| 419 | pmtime = 0; |
| 420 | break; |
| 421 | case 'o': |
| 422 | /* |
| 423 | * preserve uid/gid |
| 424 | */ |
| 425 | pids = 1; |
| 426 | break; |
| 427 | case 'p': |
| 428 | /* |
| 429 | * preserve file mode bits |
| 430 | */ |
| 431 | pmode = 1; |
| 432 | break; |
| 433 | default: |
| 434 | paxwarn(1, "Invalid -p string: %c", *pt); |
| 435 | pax_usage(); |
| 436 | break; |
| 437 | } |
| 438 | } |
| 439 | flg |= PF0x00000400; |
| 440 | break; |
| 441 | case 'r': |
| 442 | /* |
| 443 | * read the archive |
| 444 | */ |
| 445 | flg |= RF0x00000800; |
| 446 | break; |
| 447 | case 's': |
| 448 | /* |
| 449 | * file name substitution name pattern |
| 450 | */ |
| 451 | if (rep_add(optarg) < 0) { |
| 452 | pax_usage(); |
| 453 | break; |
| 454 | } |
| 455 | flg |= SF0x00001000; |
| 456 | break; |
| 457 | case 't': |
| 458 | /* |
| 459 | * preserve access time on filesystem nodes we read |
| 460 | */ |
| 461 | tflag = 1; |
| 462 | flg |= TF0x00002000; |
| 463 | break; |
| 464 | case 'u': |
| 465 | /* |
| 466 | * ignore those older files |
| 467 | */ |
| 468 | uflag = 1; |
| 469 | flg |= UF0x00004000; |
| 470 | break; |
| 471 | case 'v': |
| 472 | /* |
| 473 | * verbose operation mode |
| 474 | */ |
| 475 | vflag = 1; |
| 476 | flg |= VF0x00008000; |
| 477 | break; |
| 478 | case 'w': |
| 479 | /* |
| 480 | * write an archive |
| 481 | */ |
| 482 | flg |= WF0x00010000; |
| 483 | break; |
| 484 | case 'x': |
| 485 | /* |
| 486 | * specify an archive format on write |
| 487 | */ |
| 488 | for (i = 0; i < sizeof(fsub)/sizeof(FSUB); ++i) |
| 489 | if (fsub[i].name != NULL((void *)0) && |
| 490 | strcmp(fsub[i].name, optarg) == 0) |
| 491 | break; |
| 492 | if (i < sizeof(fsub)/sizeof(FSUB)) { |
| 493 | frmt = &fsub[i]; |
| 494 | flg |= XF0x00020000; |
| 495 | break; |
| 496 | } |
| 497 | paxwarn(1, "Unknown -x format: %s", optarg); |
| 498 | (void)fputs("pax: Known -x formats are:", stderr(&__sF[2])); |
| 499 | for (i = 0; i < (sizeof(fsub)/sizeof(FSUB)); ++i) |
| 500 | if (fsub[i].name != NULL((void *)0)) |
| 501 | (void)fprintf(stderr(&__sF[2]), " %s", |
| 502 | fsub[i].name); |
| 503 | (void)fputs("\n\n", stderr(&__sF[2])); |
| 504 | pax_usage(); |
| 505 | break; |
| 506 | case 'z': |
| 507 | /* |
| 508 | * use gzip. Non standard option. |
| 509 | */ |
| 510 | gzip_program = GZIP_CMD"gzip"; |
| 511 | break; |
| 512 | case 'B': |
| 513 | /* |
| 514 | * non-standard option on number of bytes written on a |
| 515 | * single archive volume. |
| 516 | */ |
| 517 | if ((wrlimit = str_offt(optarg)) <= 0) { |
| 518 | paxwarn(1, "Invalid write limit %s", optarg); |
| 519 | pax_usage(); |
| 520 | } |
| 521 | if (wrlimit % BLKMULT512) { |
| 522 | paxwarn(1, "Write limit is not a %d byte multiple", |
| 523 | BLKMULT512); |
| 524 | pax_usage(); |
| 525 | } |
| 526 | flg |= CBF0x00040000; |
| 527 | break; |
| 528 | case 'D': |
| 529 | /* |
| 530 | * On extraction check file inode change time before the |
| 531 | * modification of the file name. Non standard option. |
| 532 | */ |
| 533 | Dflag = 1; |
| 534 | flg |= CDF0x00080000; |
| 535 | break; |
| 536 | case 'E': |
| 537 | /* |
| 538 | * non-standard limit on read faults |
| 539 | * 0 indicates stop after first error, values |
| 540 | * indicate a limit |
| 541 | */ |
| 542 | flg |= CEF0x00100000; |
| 543 | maxflt = strtonum(optarg, 0, INT_MAX0x7fffffff, &errstr); |
| 544 | if (errstr) { |
| 545 | paxwarn(1, "Error count value: %s", errstr); |
| 546 | pax_usage(); |
| 547 | } |
| 548 | break; |
| 549 | case 'G': |
| 550 | /* |
| 551 | * non-standard option for selecting files within an |
| 552 | * archive by group (gid or name) |
| 553 | */ |
| 554 | if (grp_add(optarg) < 0) { |
| 555 | pax_usage(); |
| 556 | break; |
| 557 | } |
| 558 | flg |= CGF0x00200000; |
| 559 | break; |
| 560 | case 'H': |
| 561 | /* |
| 562 | * follow command line symlinks only |
| 563 | */ |
| 564 | Hflag = 1; |
| 565 | flg |= CHF0x00400000; |
| 566 | break; |
| 567 | case 'L': |
| 568 | /* |
| 569 | * follow symlinks |
| 570 | */ |
| 571 | Lflag = 1; |
| 572 | flg |= CLF0x00800000; |
| 573 | break; |
| 574 | case 'O': |
| 575 | /* |
| 576 | * Force one volume. Non standard option. |
| 577 | */ |
| 578 | force_one_volume = 1; |
| 579 | break; |
| 580 | case 'P': |
| 581 | /* |
| 582 | * do NOT follow symlinks (default) |
| 583 | */ |
| 584 | Lflag = 0; |
| 585 | flg |= CPF0x01000000; |
| 586 | break; |
| 587 | case 'T': |
| 588 | /* |
| 589 | * non-standard option for selecting files within an |
| 590 | * archive by modification time range (lower,upper) |
| 591 | */ |
| 592 | if (trng_add(optarg) < 0) { |
| 593 | pax_usage(); |
| 594 | break; |
| 595 | } |
| 596 | flg |= CTF0x02000000; |
| 597 | break; |
| 598 | case 'U': |
| 599 | /* |
| 600 | * non-standard option for selecting files within an |
| 601 | * archive by user (uid or name) |
| 602 | */ |
| 603 | if (usr_add(optarg) < 0) { |
| 604 | pax_usage(); |
| 605 | break; |
| 606 | } |
| 607 | flg |= CUF0x04000000; |
| 608 | break; |
| 609 | case 'X': |
| 610 | /* |
| 611 | * do not pass over mount points in the file system |
| 612 | */ |
| 613 | Xflag = 1; |
| 614 | flg |= CXF0x08000000; |
| 615 | break; |
| 616 | case 'Y': |
| 617 | /* |
| 618 | * On extraction check file inode change time after the |
| 619 | * modification of the file name. Non standard option. |
| 620 | */ |
| 621 | Yflag = 1; |
| 622 | flg |= CYF0x10000000; |
| 623 | break; |
| 624 | case 'Z': |
| 625 | /* |
| 626 | * On extraction check modification time after the |
| 627 | * modification of the file name. Non standard option. |
| 628 | */ |
| 629 | Zflag = 1; |
| 630 | flg |= CZF0x20000000; |
| 631 | break; |
| 632 | case '0': |
| 633 | /* |
| 634 | * Use \0 as pathname terminator. |
| 635 | * (For use with the -print0 option of find(1).) |
| 636 | */ |
| 637 | zeroflag = 1; |
| 638 | flg |= C0F0x40000000; |
| 639 | break; |
| 640 | default: |
| 641 | pax_usage(); |
| 642 | break; |
| 643 | } |
| 644 | } |
| 645 | |
| 646 | /* |
| 647 | * figure out the operation mode of pax read,write,extract,copy,append |
| 648 | * or list. check that we have not been given a bogus set of flags |
| 649 | * for the operation mode. |
| 650 | */ |
| 651 | if (ISLIST(flg)(((flg) & (0x00000800|0x00010000)) == 0)) { |
| 652 | act = LIST0; |
| 653 | listf = stdout(&__sF[1]); |
| 654 | bflg = flg & BDLIST(0x00000001|0x00000002|0x00000020|0x00000040|0x00000080|0x00000200 |0x00000400|0x00000800|0x00002000|0x00004000|0x00010000|0x00020000 |0x00040000|0x00080000|0x00400000|0x00800000|0x01000000|0x08000000 |0x10000000|0x20000000); |
| 655 | } else if (ISEXTRACT(flg)(((flg) & (0x00000800|0x00010000)) == 0x00000800)) { |
| 656 | act = EXTRACT1; |
| 657 | bflg = flg & BDEXTR(0x00000001|0x00000002|0x00000080|0x00002000|0x00010000|0x00020000 |0x00040000|0x00400000|0x00800000|0x01000000|0x08000000); |
| 658 | } else if (ISARCHIVE(flg)(((flg) & (0x00000001|0x00000800|0x00010000)) == 0x00010000 )) { |
| 659 | act = ARCHIVE2; |
| 660 | bflg = flg & BDARCH(0x00000004|0x00000040|0x00000080|0x00000100|0x00000400|0x00000800 |0x00080000|0x00100000|0x10000000|0x20000000); |
| 661 | } else if (ISAPPND(flg)(((flg) & (0x00000001|0x00000800|0x00010000)) == (0x00000001 |0x00010000))) { |
| 662 | act = APPND3; |
| 663 | bflg = flg & BDARCH(0x00000004|0x00000040|0x00000080|0x00000100|0x00000400|0x00000800 |0x00080000|0x00100000|0x10000000|0x20000000); |
| 664 | } else if (ISCOPY(flg)(((flg) & (0x00000800|0x00010000)) == (0x00000800|0x00010000 ))) { |
| 665 | act = COPY4; |
| 666 | bflg = flg & BDCOPY(0x00000001|0x00000002|0x00000010|0x00000200|0x00020000|0x00040000 |0x00100000); |
| 667 | } else |
| 668 | pax_usage(); |
| 669 | if (bflg) { |
| 670 | printflg(flg); |
| 671 | pax_usage(); |
| 672 | } |
| 673 | |
| 674 | /* |
| 675 | * if we are writing (ARCHIVE) we use the default format if the user |
| 676 | * did not specify a format. when we write during an APPEND, we will |
| 677 | * adopt the format of the existing archive if none was supplied. |
| 678 | */ |
| 679 | if (!(flg & XF0x00020000) && (act == ARCHIVE2)) |
| 680 | frmt = &(fsub[DEFLT5]); |
| 681 | |
| 682 | /* |
| 683 | * process the args as they are interpreted by the operation mode |
| 684 | */ |
| 685 | switch (act) { |
| 686 | case LIST0: |
| 687 | case EXTRACT1: |
| 688 | for (; optind < argc; optind++) |
| 689 | if (pat_add(argv[optind], NULL((void *)0)) < 0) |
| 690 | pax_usage(); |
| 691 | break; |
| 692 | case COPY4: |
| 693 | if (optind >= argc) { |
| 694 | paxwarn(0, "Destination directory was not supplied"); |
| 695 | pax_usage(); |
| 696 | } |
| 697 | --argc; |
| 698 | dirptr = argv[argc]; |
| 699 | /* FALL THROUGH */ |
| 700 | case ARCHIVE2: |
| 701 | case APPND3: |
| 702 | for (; optind < argc; optind++) |
| 703 | if (ftree_add(argv[optind], 0) < 0) |
| 704 | pax_usage(); |
| 705 | /* |
| 706 | * no read errors allowed on updates/append operation! |
| 707 | */ |
| 708 | maxflt = 0; |
| 709 | break; |
| 710 | } |
| 711 | } |
| 712 | |
| 713 | |
| 714 | /* |
| 715 | * tar_options() |
| 716 | * look at the user specified flags. set globals as required and check if |
| 717 | * the user specified a legal set of flags. If not, complain and exit |
| 718 | */ |
| 719 | |
| 720 | static void |
| 721 | tar_options(int argc, char **argv) |
| 722 | { |
| 723 | int c; |
| 724 | int Oflag = 0; |
| 725 | int nincfiles = 0; |
| 726 | int incfiles_max = 0; |
| 727 | struct incfile { |
| 728 | char *file; |
| 729 | char *dir; |
| 730 | }; |
| 731 | struct incfile *incfiles = NULL((void *)0); |
| 732 | |
| 733 | /* |
| 734 | * Set default values. |
| 735 | */ |
| 736 | rmleadslash = 1; |
| 737 | |
| 738 | /* |
| 739 | * process option flags |
| 740 | */ |
| 741 | while ((c = getoldopt(argc, argv, |
| 742 | "b:cef:hjmopqruts:vwxzBC:HI:LNOPXZ014578")) != -1) { |
| 743 | switch (c) { |
| 744 | case 'b': |
| 745 | /* |
| 746 | * specify blocksize in 512-byte blocks |
| 747 | */ |
| 748 | if ((wrblksz = (int)str_offt(optarg)) <= 0) { |
| 749 | paxwarn(1, "Invalid block size %s", optarg); |
| 750 | tar_usage(); |
| 751 | } |
| 752 | wrblksz *= 512; /* XXX - check for int oflow */ |
| 753 | break; |
| 754 | case 'c': |
| 755 | /* |
| 756 | * create an archive |
| 757 | */ |
| 758 | act = ARCHIVE2; |
| 759 | break; |
| 760 | case 'e': |
| 761 | /* |
| 762 | * stop after first error |
| 763 | */ |
| 764 | maxflt = 0; |
| 765 | break; |
| 766 | case 'f': |
| 767 | /* |
| 768 | * filename where the archive is stored |
| 769 | */ |
| 770 | arcname = optarg; |
| 771 | break; |
| 772 | case 'h': |
| 773 | /* |
| 774 | * follow symlinks |
| 775 | */ |
| 776 | Lflag = 1; |
| 777 | break; |
| 778 | case 'j': |
| 779 | /* |
| 780 | * use bzip2. Non standard option. |
| 781 | */ |
| 782 | gzip_program = BZIP2_CMD"bzip2"; |
| 783 | break; |
| 784 | case 'm': |
| 785 | /* |
| 786 | * do not preserve modification time |
| 787 | */ |
| 788 | pmtime = 0; |
| 789 | break; |
| 790 | case 'O': |
| 791 | Oflag = 1; |
| 792 | break; |
| 793 | case 'o': |
| 794 | Oflag = 2; |
| 795 | tar_nodir = 1; |
| 796 | break; |
| 797 | case 'p': |
| 798 | /* |
| 799 | * preserve uid/gid and file mode, regardless of umask |
| 800 | */ |
| 801 | pmode = 1; |
| 802 | pids = 1; |
| 803 | break; |
| 804 | case 'q': |
| 805 | /* |
| 806 | * select first match for a pattern only |
| 807 | */ |
| 808 | nflag = 1; |
| 809 | break; |
| 810 | case 'r': |
| 811 | case 'u': |
| 812 | /* |
| 813 | * append to the archive |
| 814 | */ |
| 815 | act = APPND3; |
| 816 | break; |
| 817 | case 's': |
| 818 | /* |
| 819 | * file name substitution name pattern |
| 820 | */ |
| 821 | if (rep_add(optarg) < 0) { |
| 822 | tar_usage(); |
| 823 | break; |
| 824 | } |
| 825 | break; |
| 826 | case 't': |
| 827 | /* |
| 828 | * list contents of the tape |
| 829 | */ |
| 830 | act = LIST0; |
| 831 | break; |
| 832 | case 'v': |
| 833 | /* |
| 834 | * verbose operation mode |
| 835 | */ |
| 836 | vflag++; |
| 837 | break; |
| 838 | case 'w': |
| 839 | /* |
| 840 | * interactive file rename |
| 841 | */ |
| 842 | iflag = 1; |
| 843 | break; |
| 844 | case 'x': |
| 845 | /* |
| 846 | * extract an archive, preserving mode, |
| 847 | * and mtime if possible. |
| 848 | */ |
| 849 | act = EXTRACT1; |
| 850 | pmtime = 1; |
| 851 | break; |
| 852 | case 'z': |
| 853 | /* |
| 854 | * use gzip. Non standard option. |
| 855 | */ |
| 856 | gzip_program = GZIP_CMD"gzip"; |
| 857 | break; |
| 858 | case 'B': |
| 859 | /* |
| 860 | * Nothing to do here, this is pax default |
| 861 | */ |
| 862 | break; |
| 863 | case 'C': |
| 864 | havechd++; |
| 865 | chdname = optarg; |
| 866 | break; |
| 867 | case 'H': |
| 868 | /* |
| 869 | * follow command line symlinks only |
| 870 | */ |
| 871 | Hflag = 1; |
| 872 | break; |
| 873 | case 'I': |
| 874 | if (++nincfiles > incfiles_max) { |
| 875 | size_t n = nincfiles + 3; |
| 876 | struct incfile *p; |
| 877 | |
| 878 | p = reallocarray(incfiles, n, |
| 879 | sizeof(*incfiles)); |
| 880 | if (p == NULL((void *)0)) { |
| 881 | paxwarn(0, "Unable to allocate space " |
| 882 | "for option list"); |
| 883 | exit(1); |
| 884 | } |
| 885 | incfiles = p; |
| 886 | incfiles_max = n; |
| 887 | } |
| 888 | incfiles[nincfiles - 1].file = optarg; |
| 889 | incfiles[nincfiles - 1].dir = chdname; |
| 890 | break; |
| 891 | case 'L': |
| 892 | /* |
| 893 | * follow symlinks |
| 894 | */ |
| 895 | Lflag = 1; |
| 896 | break; |
| 897 | case 'N': |
| 898 | /* numeric uid and gid only */ |
| 899 | Nflag = 1; |
| 900 | break; |
| 901 | case 'P': |
| 902 | /* |
| 903 | * do not remove leading '/' from pathnames |
| 904 | */ |
| 905 | rmleadslash = 0; |
| 906 | break; |
| 907 | case 'X': |
| 908 | /* |
| 909 | * do not pass over mount points in the file system |
| 910 | */ |
| 911 | Xflag = 1; |
| 912 | break; |
| 913 | case 'Z': |
| 914 | /* |
| 915 | * use compress. |
| 916 | */ |
| 917 | gzip_program = COMPRESS_CMD"compress"; |
| 918 | break; |
| 919 | case '0': |
| 920 | arcname = DEV_0"/dev/rst0"; |
| 921 | break; |
| 922 | case '1': |
| 923 | arcname = DEV_1"/dev/rst1"; |
| 924 | break; |
| 925 | case '4': |
| 926 | arcname = DEV_4"/dev/rst4"; |
| 927 | break; |
| 928 | case '5': |
| 929 | arcname = DEV_5"/dev/rst5"; |
| 930 | break; |
| 931 | case '7': |
| 932 | arcname = DEV_7"/dev/rst7"; |
| 933 | break; |
| 934 | case '8': |
| 935 | arcname = DEV_8"/dev/rst8"; |
| 936 | break; |
| 937 | default: |
| 938 | tar_usage(); |
| 939 | break; |
| 940 | } |
| 941 | } |
| 942 | argc -= optind; |
| 943 | argv += optind; |
| 944 | |
| 945 | if ((arcname == NULL((void *)0)) || (*arcname == '\0')) { |
| 946 | arcname = getenv("TAPE"); |
| 947 | if ((arcname == NULL((void *)0)) || (*arcname == '\0')) |
| 948 | arcname = _PATH_DEFTAPE"/dev/rst0"; |
| 949 | } |
| 950 | if ((arcname[0] == '-') && (arcname[1]== '\0')) |
| 951 | arcname = NULL((void *)0); |
| 952 | |
| 953 | /* |
| 954 | * Traditional tar behaviour: list-like output goes to stdout unless |
| 955 | * writing the archive there. (pax uses stderr unless in list mode) |
| 956 | */ |
| 957 | if (act == LIST0 || act == EXTRACT1 || arcname != NULL((void *)0)) |
| 958 | listf = stdout(&__sF[1]); |
| 959 | |
| 960 | /* Traditional tar behaviour (pax wants to read file list from stdin) */ |
| 961 | if ((act == ARCHIVE2 || act == APPND3) && argc == 0 && nincfiles == 0) |
| 962 | exit(0); |
| 963 | |
| 964 | /* |
| 965 | * process the args as they are interpreted by the operation mode |
| 966 | */ |
| 967 | switch (act) { |
| 968 | case LIST0: |
| 969 | case EXTRACT1: |
| 970 | default: |
| 971 | { |
| 972 | int sawpat = 0; |
| 973 | char *file, *dir; |
| 974 | |
| 975 | while (nincfiles || *argv != NULL((void *)0)) { |
| 976 | /* |
| 977 | * If we queued up any include files, |
| 978 | * pull them in now. Otherwise, check |
| 979 | * for -I and -C positional flags. |
| 980 | * Anything else must be a file to |
| 981 | * extract. |
| 982 | */ |
| 983 | if (nincfiles) { |
| 984 | file = incfiles->file; |
| 985 | dir = incfiles->dir; |
| 986 | incfiles++; |
| 987 | nincfiles--; |
| 988 | } else if (strcmp(*argv, "-I") == 0) { |
| 989 | if (*++argv == NULL((void *)0)) |
| 990 | break; |
| 991 | file = *argv++; |
| 992 | dir = chdname; |
| 993 | } else |
| 994 | file = NULL((void *)0); |
| 995 | if (file != NULL((void *)0)) { |
| 996 | FILE *fp; |
| 997 | char *str; |
| 998 | |
| 999 | if (strcmp(file, "-") == 0) |
| 1000 | fp = stdin(&__sF[0]); |
| 1001 | else if ((fp = fopen(file, "r")) == NULL((void *)0)) { |
| 1002 | syswarn(1, errno(*__errno()), |
| 1003 | "Unable to open %s", file); |
| 1004 | tar_usage(); |
| 1005 | } |
| 1006 | while ((str = get_line(fp)) != NULL((void *)0)) { |
| 1007 | if (pat_add(str, dir) < 0) |
| 1008 | tar_usage(); |
| 1009 | sawpat = 1; |
| 1010 | } |
| 1011 | if (ferror(fp)(!__isthreaded ? (((fp)->_flags & 0x0040) != 0) : (ferror )(fp))) { |
| 1012 | syswarn(1, errno(*__errno()), |
| 1013 | "Unable to read from %s", |
| 1014 | strcmp(file, "-") ? file : |
| 1015 | "stdin"); |
| 1016 | tar_usage(); |
| 1017 | } |
| 1018 | if (strcmp(file, "-") != 0) |
| 1019 | fclose(fp); |
| 1020 | } else if (strcmp(*argv, "-C") == 0) { |
| 1021 | if (*++argv == NULL((void *)0)) |
| 1022 | break; |
| 1023 | chdname = *argv++; |
| 1024 | havechd++; |
| 1025 | } else if (pat_add(*argv++, chdname) < 0) |
| 1026 | tar_usage(); |
| 1027 | else |
| 1028 | sawpat = 1; |
| 1029 | } |
| 1030 | /* |
| 1031 | * if patterns were added, we are doing chdir() |
| 1032 | * on a file-by-file basis, else, just one |
| 1033 | * global chdir (if any) after opening input. |
| 1034 | */ |
| 1035 | if (sawpat > 0) |
| 1036 | chdname = NULL((void *)0); |
| 1037 | } |
| 1038 | break; |
| 1039 | case ARCHIVE2: |
| 1040 | case APPND3: |
| 1041 | frmt = &(fsub[Oflag ? F_OTAR4 : F_TAR5]); |
| 1042 | |
| 1043 | if (chdname != NULL((void *)0)) { /* initial chdir() */ |
| 1044 | if (ftree_add(chdname, 1) < 0) |
| 1045 | tar_usage(); |
| 1046 | } |
| 1047 | |
| 1048 | while (nincfiles || *argv != NULL((void *)0)) { |
| 1049 | char *file, *dir; |
| 1050 | |
| 1051 | /* |
| 1052 | * If we queued up any include files, pull them in |
| 1053 | * now. Otherwise, check for -I and -C positional |
| 1054 | * flags. Anything else must be a file to include |
| 1055 | * in the archive. |
| 1056 | */ |
| 1057 | if (nincfiles) { |
| 1058 | file = incfiles->file; |
| 1059 | dir = incfiles->dir; |
| 1060 | incfiles++; |
| 1061 | nincfiles--; |
| 1062 | } else if (strcmp(*argv, "-I") == 0) { |
| 1063 | if (*++argv == NULL((void *)0)) |
| 1064 | break; |
| 1065 | file = *argv++; |
| 1066 | dir = NULL((void *)0); |
| 1067 | } else |
| 1068 | file = NULL((void *)0); |
| 1069 | if (file != NULL((void *)0)) { |
| 1070 | FILE *fp; |
| 1071 | char *str; |
| 1072 | |
| 1073 | /* Set directory if needed */ |
| 1074 | if (dir) { |
| 1075 | if (ftree_add(dir, 1) < 0) |
| 1076 | tar_usage(); |
| 1077 | } |
| 1078 | |
| 1079 | if (strcmp(file, "-") == 0) |
| 1080 | fp = stdin(&__sF[0]); |
| 1081 | else if ((fp = fopen(file, "r")) == NULL((void *)0)) { |
| 1082 | syswarn(1, errno(*__errno()), "Unable to open %s", |
| 1083 | file); |
| 1084 | tar_usage(); |
| 1085 | } |
| 1086 | while ((str = get_line(fp)) != NULL((void *)0)) { |
| 1087 | if (ftree_add(str, 0) < 0) |
| 1088 | tar_usage(); |
| 1089 | } |
| 1090 | if (ferror(fp)(!__isthreaded ? (((fp)->_flags & 0x0040) != 0) : (ferror )(fp))) { |
| 1091 | syswarn(1, errno(*__errno()), |
| 1092 | "Unable to read from %s", |
| 1093 | strcmp(file, "-") ? file : "stdin"); |
| 1094 | tar_usage(); |
| 1095 | } |
| 1096 | if (strcmp(file, "-") != 0) |
| 1097 | fclose(fp); |
| 1098 | } else if (strcmp(*argv, "-C") == 0) { |
| 1099 | if (*++argv == NULL((void *)0)) |
| 1100 | break; |
| 1101 | if (ftree_add(*argv++, 1) < 0) |
| 1102 | tar_usage(); |
| 1103 | havechd++; |
| 1104 | } else if (ftree_add(*argv++, 0) < 0) |
| 1105 | tar_usage(); |
| 1106 | } |
| 1107 | /* |
| 1108 | * no read errors allowed on updates/append operation! |
| 1109 | */ |
| 1110 | maxflt = 0; |
| 1111 | break; |
| 1112 | } |
| 1113 | } |
| 1114 | |
| 1115 | static int mkpath(char *); |
| 1116 | |
| 1117 | static int |
| 1118 | mkpath(char *path) |
| 1119 | { |
| 1120 | struct stat sb; |
| 1121 | char *slash; |
| 1122 | int done = 0; |
| 1123 | |
| 1124 | slash = path; |
| 1125 | |
| 1126 | while (!done) { |
| 1127 | slash += strspn(slash, "/"); |
| 1128 | slash += strcspn(slash, "/"); |
| 1129 | |
| 1130 | done = (*slash == '\0'); |
| 1131 | *slash = '\0'; |
| 1132 | |
| 1133 | if (stat(path, &sb)) { |
| 1134 | if (errno(*__errno()) != ENOENT2 || mkdir(path, 0777)) { |
| 1135 | paxwarn(1, "%s", path); |
| 1136 | return (-1); |
| 1137 | } |
| 1138 | } else if (!S_ISDIR(sb.st_mode)((sb.st_mode & 0170000) == 0040000)) { |
| 1139 | syswarn(1, ENOTDIR20, "%s", path); |
| 1140 | return (-1); |
| 1141 | } |
| 1142 | |
| 1143 | if (!done) |
| 1144 | *slash = '/'; |
| 1145 | } |
| 1146 | |
| 1147 | return (0); |
| 1148 | } |
| 1149 | |
| 1150 | #ifndef NOCPIO |
| 1151 | /* |
| 1152 | * cpio_options() |
| 1153 | * look at the user specified flags. set globals as required and check if |
| 1154 | * the user specified a legal set of flags. If not, complain and exit |
| 1155 | */ |
| 1156 | |
| 1157 | static void |
| 1158 | cpio_options(int argc, char **argv) |
| 1159 | { |
| 1160 | const char *errstr; |
| 1161 | int c, list_only = 0; |
| 1162 | unsigned i; |
| 1163 | char *str; |
| 1164 | FILE *fp; |
| 1165 | |
| 1166 | kflag = 1; |
| 1167 | pids = 1; |
| 1168 | pmode = 1; |
| 1169 | pmtime = 0; |
| 1170 | arcname = NULL((void *)0); |
| 1171 | dflag = 1; |
| 1172 | act = -1; |
| 1173 | nodirs = 1; |
| 1174 | while ((c=getopt(argc,argv,"abcdfijklmoprstuvzABC:E:F:H:I:LO:SZ6")) != -1) |
| 1175 | switch (c) { |
| 1176 | case 'a': |
| 1177 | /* |
| 1178 | * preserve access time on files read |
| 1179 | */ |
| 1180 | tflag = 1; |
| 1181 | break; |
| 1182 | case 'b': |
| 1183 | /* |
| 1184 | * swap bytes and half-words when reading data |
| 1185 | */ |
| 1186 | break; |
| 1187 | case 'c': |
| 1188 | /* |
| 1189 | * ASCII cpio header |
| 1190 | */ |
| 1191 | frmt = &(fsub[F_ACPIO1]); |
| 1192 | break; |
| 1193 | case 'd': |
| 1194 | /* |
| 1195 | * create directories as needed |
| 1196 | */ |
| 1197 | nodirs = 0; |
| 1198 | break; |
| 1199 | case 'f': |
| 1200 | /* |
| 1201 | * invert meaning of pattern list |
| 1202 | */ |
| 1203 | cflag = 1; |
| 1204 | break; |
| 1205 | case 'i': |
| 1206 | /* |
| 1207 | * restore an archive |
| 1208 | */ |
| 1209 | act = EXTRACT1; |
| 1210 | break; |
| 1211 | case 'j': |
| 1212 | /* |
| 1213 | * use bzip2. Non standard option. |
| 1214 | */ |
| 1215 | gzip_program = BZIP2_CMD"bzip2"; |
| 1216 | break; |
| 1217 | case 'k': |
| 1218 | break; |
| 1219 | case 'l': |
| 1220 | /* |
| 1221 | * use links instead of copies when possible |
| 1222 | */ |
| 1223 | lflag = 1; |
| 1224 | break; |
| 1225 | case 'm': |
| 1226 | /* |
| 1227 | * preserve modification time |
| 1228 | */ |
| 1229 | pmtime = 1; |
| 1230 | break; |
| 1231 | case 'o': |
| 1232 | /* |
| 1233 | * create an archive |
| 1234 | */ |
| 1235 | act = ARCHIVE2; |
| 1236 | if (frmt == NULL((void *)0)) |
| 1237 | frmt = &(fsub[F_CPIO3]); |
| 1238 | break; |
| 1239 | case 'p': |
| 1240 | /* |
| 1241 | * copy-pass mode |
| 1242 | */ |
| 1243 | act = COPY4; |
| 1244 | break; |
| 1245 | case 'r': |
| 1246 | /* |
| 1247 | * interactively rename files |
| 1248 | */ |
| 1249 | iflag = 1; |
| 1250 | break; |
| 1251 | case 's': |
| 1252 | /* |
| 1253 | * swap bytes after reading data |
| 1254 | */ |
| 1255 | break; |
| 1256 | case 't': |
| 1257 | /* |
| 1258 | * list contents of archive |
| 1259 | */ |
| 1260 | list_only = 1; |
| 1261 | break; |
| 1262 | case 'u': |
| 1263 | /* |
| 1264 | * replace newer files |
| 1265 | */ |
| 1266 | kflag = 0; |
| 1267 | break; |
| 1268 | case 'v': |
| 1269 | /* |
| 1270 | * verbose operation mode |
| 1271 | */ |
| 1272 | vflag = 1; |
| 1273 | break; |
| 1274 | case 'z': |
| 1275 | /* |
| 1276 | * use gzip. Non standard option. |
| 1277 | */ |
| 1278 | gzip_program = GZIP_CMD"gzip"; |
| 1279 | break; |
| 1280 | case 'A': |
| 1281 | /* |
| 1282 | * append mode |
| 1283 | */ |
| 1284 | act = APPND3; |
| 1285 | break; |
| 1286 | case 'B': |
| 1287 | /* |
| 1288 | * Use 5120 byte block size |
| 1289 | */ |
| 1290 | wrblksz = 5120; |
| 1291 | break; |
| 1292 | case 'C': |
| 1293 | /* |
| 1294 | * set block size in bytes |
| 1295 | */ |
| 1296 | wrblksz = strtonum(optarg, 0, INT_MAX0x7fffffff, &errstr); |
| 1297 | if (errstr) { |
| 1298 | paxwarn(1, "Invalid block size %s: %s", |
| 1299 | optarg, errstr); |
| 1300 | pax_usage(); |
| 1301 | } |
| 1302 | break; |
| 1303 | case 'E': |
| 1304 | /* |
| 1305 | * file with patterns to extract or list |
| 1306 | */ |
| 1307 | if ((fp = fopen(optarg, "r")) == NULL((void *)0)) { |
| 1308 | syswarn(1, errno(*__errno()), "Unable to open %s", |
| 1309 | optarg); |
| 1310 | cpio_usage(); |
| 1311 | } |
| 1312 | while ((str = get_line(fp)) != NULL((void *)0)) { |
| 1313 | pat_add(str, NULL((void *)0)); |
| 1314 | } |
| 1315 | if (ferror(fp)(!__isthreaded ? (((fp)->_flags & 0x0040) != 0) : (ferror )(fp))) { |
| 1316 | syswarn(1, errno(*__errno()), |
| 1317 | "Unable to read from %s", optarg); |
| 1318 | cpio_usage(); |
| 1319 | } |
| 1320 | fclose(fp); |
| 1321 | break; |
| 1322 | case 'F': |
| 1323 | case 'I': |
| 1324 | case 'O': |
| 1325 | /* |
| 1326 | * filename where the archive is stored |
| 1327 | */ |
| 1328 | if ((optarg[0] == '-') && (optarg[1]== '\0')) { |
| 1329 | /* |
| 1330 | * treat a - as stdin |
| 1331 | */ |
| 1332 | arcname = NULL((void *)0); |
| 1333 | break; |
| 1334 | } |
| 1335 | arcname = optarg; |
| 1336 | break; |
| 1337 | case 'H': |
| 1338 | /* |
| 1339 | * specify an archive format on write |
| 1340 | */ |
| 1341 | for (i = 0; i < sizeof(fsub)/sizeof(FSUB); ++i) |
| 1342 | if (fsub[i].name != NULL((void *)0) && |
| 1343 | strcmp(fsub[i].name, optarg) == 0) |
| 1344 | break; |
| 1345 | if (i < sizeof(fsub)/sizeof(FSUB)) { |
| 1346 | frmt = &fsub[i]; |
| 1347 | break; |
| 1348 | } |
| 1349 | paxwarn(1, "Unknown -H format: %s", optarg); |
| 1350 | (void)fputs("cpio: Known -H formats are:", stderr(&__sF[2])); |
| 1351 | for (i = 0; i < (sizeof(fsub)/sizeof(FSUB)); ++i) |
| 1352 | if (fsub[i].name != NULL((void *)0)) |
| 1353 | (void)fprintf(stderr(&__sF[2]), " %s", |
| 1354 | fsub[i].name); |
| 1355 | (void)fputs("\n\n", stderr(&__sF[2])); |
| 1356 | cpio_usage(); |
| 1357 | break; |
| 1358 | case 'L': |
| 1359 | /* |
| 1360 | * follow symbolic links |
| 1361 | */ |
| 1362 | Lflag = 1; |
| 1363 | break; |
| 1364 | case 'S': |
| 1365 | /* |
| 1366 | * swap halfwords after reading data |
| 1367 | */ |
| 1368 | break; |
| 1369 | case 'Z': |
| 1370 | /* |
| 1371 | * use compress. Non standard option. |
| 1372 | */ |
| 1373 | gzip_program = COMPRESS_CMD"compress"; |
| 1374 | break; |
| 1375 | case '6': |
| 1376 | /* |
| 1377 | * process Version 6 cpio format |
| 1378 | */ |
| 1379 | frmt = &(fsub[F_OCPIO0]); |
| 1380 | break; |
| 1381 | default: |
| 1382 | cpio_usage(); |
| 1383 | break; |
| 1384 | } |
| 1385 | argc -= optind; |
| 1386 | argv += optind; |
| 1387 | |
| 1388 | /* |
| 1389 | * process the args as they are interpreted by the operation mode |
| 1390 | */ |
| 1391 | switch (act) { |
| 1392 | case EXTRACT1: |
| 1393 | if (list_only) { |
| 1394 | act = LIST0; |
| 1395 | |
| 1396 | /* |
| 1397 | * cpio is like pax: list to stderr |
| 1398 | * unless in list mode |
| 1399 | */ |
| 1400 | listf = stdout(&__sF[1]); |
| 1401 | } |
| 1402 | while (*argv != NULL((void *)0)) |
| 1403 | if (pat_add(*argv++, NULL((void *)0)) < 0) |
| 1404 | cpio_usage(); |
| 1405 | break; |
| 1406 | case COPY4: |
| 1407 | if (*argv == NULL((void *)0)) { |
| 1408 | paxwarn(0, "Destination directory was not supplied"); |
| 1409 | cpio_usage(); |
| 1410 | } |
| 1411 | dirptr = *argv; |
| 1412 | if (mkpath(dirptr) < 0) |
| 1413 | cpio_usage(); |
| 1414 | --argc; |
| 1415 | ++argv; |
| 1416 | /* FALL THROUGH */ |
| 1417 | case ARCHIVE2: |
| 1418 | case APPND3: |
| 1419 | if (*argv != NULL((void *)0)) |
| 1420 | cpio_usage(); |
| 1421 | /* |
| 1422 | * no read errors allowed on updates/append operation! |
| 1423 | */ |
| 1424 | maxflt = 0; |
| 1425 | while ((str = get_line(stdin(&__sF[0]))) != NULL((void *)0)) { |
| 1426 | ftree_add(str, 0); |
| 1427 | } |
| 1428 | if (ferror(stdin)(!__isthreaded ? ((((&__sF[0]))->_flags & 0x0040) != 0) : (ferror)((&__sF[0])))) { |
| 1429 | syswarn(1, errno(*__errno()), "Unable to read from %s", |
| 1430 | "stdin"); |
| 1431 | cpio_usage(); |
| 1432 | } |
| 1433 | break; |
| 1434 | default: |
| 1435 | cpio_usage(); |
| 1436 | break; |
| 1437 | } |
| 1438 | } |
| 1439 | #endif /* !NOCPIO */ |
| 1440 | |
| 1441 | /* |
| 1442 | * printflg() |
| 1443 | * print out those invalid flag sets found to the user |
| 1444 | */ |
| 1445 | |
| 1446 | static void |
| 1447 | printflg(unsigned int flg) |
| 1448 | { |
| 1449 | int nxt; |
| 1450 | int pos = 0; |
| 1451 | |
| 1452 | (void)fprintf(stderr(&__sF[2]),"%s: Invalid combination of options:", argv0); |
| 1453 | while ((nxt = ffs(flg)) != 0) { |
| 1454 | flg >>= nxt; |
| 1455 | pos += nxt; |
| 1456 | (void)fprintf(stderr(&__sF[2]), " -%c", flgch[pos-1]); |
| 1457 | } |
| 1458 | (void)putc('\n', stderr)(!__isthreaded ? __sputc('\n', (&__sF[2])) : (putc)('\n', (&__sF[2]))); |
| 1459 | } |
| 1460 | |
| 1461 | /* |
| 1462 | * opt_next() |
| 1463 | * called by format specific options routines to get each format specific |
| 1464 | * flag and value specified with -o |
| 1465 | * Return: |
| 1466 | * pointer to next OPLIST entry or NULL (end of list). |
| 1467 | */ |
| 1468 | |
| 1469 | OPLIST * |
| 1470 | opt_next(void) |
| 1471 | { |
| 1472 | OPLIST *opt; |
| 1473 | |
| 1474 | if ((opt = ophead) != NULL((void *)0)) |
| 1475 | ophead = ophead->fow; |
| 1476 | return(opt); |
| 1477 | } |
| 1478 | |
| 1479 | /* |
| 1480 | * bad_opt() |
| 1481 | * generic routine used to complain about a format specific options |
| 1482 | * when the format does not support options. |
| 1483 | */ |
| 1484 | |
| 1485 | static int |
| 1486 | bad_opt(void) |
| 1487 | { |
| 1488 | OPLIST *opt; |
| 1489 | |
| 1490 | if (ophead == NULL((void *)0)) |
| 1491 | return(0); |
| 1492 | /* |
| 1493 | * print all we were given |
| 1494 | */ |
| 1495 | paxwarn(1,"These format options are not supported"); |
| 1496 | while ((opt = opt_next()) != NULL((void *)0)) |
| 1497 | (void)fprintf(stderr(&__sF[2]), "\t%s = %s\n", opt->name, opt->value); |
| 1498 | pax_usage(); |
| 1499 | return(0); |
| 1500 | } |
| 1501 | |
| 1502 | /* |
| 1503 | * opt_add() |
| 1504 | * breaks the value supplied to -o into a option name and value. options |
| 1505 | * are given to -o in the form -o name-value,name=value |
| 1506 | * multiple -o may be specified. |
| 1507 | * Return: |
| 1508 | * 0 if format in name=value format, -1 if -o is passed junk |
| 1509 | */ |
| 1510 | |
| 1511 | static int |
| 1512 | opt_add(const char *str) |
| 1513 | { |
| 1514 | OPLIST *opt; |
| 1515 | char *frpt; |
| 1516 | char *pt; |
| 1517 | char *endpt; |
| 1518 | char *dstr; |
| 1519 | |
| 1520 | if ((str == NULL((void *)0)) || (*str == '\0')) { |
| 1521 | paxwarn(0, "Invalid option name"); |
| 1522 | return(-1); |
| 1523 | } |
| 1524 | if ((dstr = strdup(str)) == NULL((void *)0)) { |
| 1525 | paxwarn(0, "Unable to allocate space for option list"); |
| 1526 | return(-1); |
| 1527 | } |
| 1528 | frpt = endpt = dstr; |
Although the value stored to 'endpt' is used in the enclosing expression, the value is never actually read from 'endpt' | |
| 1529 | |
| 1530 | /* |
| 1531 | * break into name and values pieces and stuff each one into a |
| 1532 | * OPLIST structure. When we know the format, the format specific |
| 1533 | * option function will go through this list |
| 1534 | */ |
| 1535 | while ((frpt != NULL((void *)0)) && (*frpt != '\0')) { |
| 1536 | if ((endpt = strchr(frpt, ',')) != NULL((void *)0)) |
| 1537 | *endpt = '\0'; |
| 1538 | if ((pt = strchr(frpt, '=')) == NULL((void *)0)) { |
| 1539 | paxwarn(0, "Invalid options format"); |
| 1540 | free(dstr); |
| 1541 | return(-1); |
| 1542 | } |
| 1543 | if ((opt = malloc(sizeof(OPLIST))) == NULL((void *)0)) { |
| 1544 | paxwarn(0, "Unable to allocate space for option list"); |
| 1545 | free(dstr); |
| 1546 | return(-1); |
| 1547 | } |
| 1548 | dstr = NULL((void *)0); /* parts of string going onto the OPLIST */ |
| 1549 | *pt++ = '\0'; |
| 1550 | opt->name = frpt; |
| 1551 | opt->value = pt; |
| 1552 | opt->fow = NULL((void *)0); |
| 1553 | if (endpt != NULL((void *)0)) |
| 1554 | frpt = endpt + 1; |
| 1555 | else |
| 1556 | frpt = NULL((void *)0); |
| 1557 | if (ophead == NULL((void *)0)) { |
| 1558 | optail = ophead = opt; |
| 1559 | continue; |
| 1560 | } |
| 1561 | optail->fow = opt; |
| 1562 | optail = opt; |
| 1563 | } |
| 1564 | free(dstr); |
| 1565 | return(0); |
| 1566 | } |
| 1567 | |
| 1568 | /* |
| 1569 | * str_offt() |
| 1570 | * Convert an expression of the following forms to an off_t > 0. |
| 1571 | * 1) A positive decimal number. |
| 1572 | * 2) A positive decimal number followed by a b (mult by 512). |
| 1573 | * 3) A positive decimal number followed by a k (mult by 1024). |
| 1574 | * 4) A positive decimal number followed by a m (mult by 512). |
| 1575 | * 5) A positive decimal number followed by a w (mult by sizeof int) |
| 1576 | * 6) Two or more positive decimal numbers (with/without k,b or w). |
| 1577 | * separated by x (also * for backwards compatibility), specifying |
| 1578 | * the product of the indicated values. |
| 1579 | * Return: |
| 1580 | * 0 for an error, a positive value o.w. |
| 1581 | */ |
| 1582 | |
| 1583 | static off_t |
| 1584 | str_offt(char *val) |
| 1585 | { |
| 1586 | char *expr; |
| 1587 | off_t num, t; |
| 1588 | |
| 1589 | num = strtoll(val, &expr, 0); |
| 1590 | if ((num == LLONG_MAX0x7fffffffffffffffLL) || (num <= 0) || (expr == val)) |
| 1591 | return(0); |
| 1592 | |
| 1593 | switch (*expr) { |
| 1594 | case 'b': |
| 1595 | t = num; |
| 1596 | num *= 512; |
| 1597 | if (t > num) |
| 1598 | return(0); |
| 1599 | ++expr; |
| 1600 | break; |
| 1601 | case 'k': |
| 1602 | t = num; |
| 1603 | num *= 1024; |
| 1604 | if (t > num) |
| 1605 | return(0); |
| 1606 | ++expr; |
| 1607 | break; |
| 1608 | case 'm': |
| 1609 | t = num; |
| 1610 | num *= 1048576; |
| 1611 | if (t > num) |
| 1612 | return(0); |
| 1613 | ++expr; |
| 1614 | break; |
| 1615 | case 'w': |
| 1616 | t = num; |
| 1617 | num *= sizeof(int); |
| 1618 | if (t > num) |
| 1619 | return(0); |
| 1620 | ++expr; |
| 1621 | break; |
| 1622 | } |
| 1623 | |
| 1624 | switch (*expr) { |
| 1625 | case '\0': |
| 1626 | break; |
| 1627 | case '*': |
| 1628 | case 'x': |
| 1629 | t = num; |
| 1630 | num *= str_offt(expr + 1); |
| 1631 | if (t > num) |
| 1632 | return(0); |
| 1633 | break; |
| 1634 | default: |
| 1635 | return(0); |
| 1636 | } |
| 1637 | return(num); |
| 1638 | } |
| 1639 | |
| 1640 | char * |
| 1641 | get_line(FILE *f) |
| 1642 | { |
| 1643 | char *str = NULL((void *)0); |
| 1644 | size_t size = 0; |
| 1645 | ssize_t len; |
| 1646 | |
| 1647 | do { |
| 1648 | len = getline(&str, &size, f); |
| 1649 | if (len == -1) { |
| 1650 | free(str); |
| 1651 | return NULL((void *)0); |
| 1652 | } |
| 1653 | if (str[len - 1] == '\n') |
| 1654 | str[len - 1] = '\0'; |
| 1655 | } while (str[0] == '\0'); |
| 1656 | return str; |
| 1657 | } |
| 1658 | |
| 1659 | /* |
| 1660 | * no_op() |
| 1661 | * for those option functions where the archive format has nothing to do. |
| 1662 | * Return: |
| 1663 | * 0 |
| 1664 | */ |
| 1665 | |
| 1666 | static int |
| 1667 | no_op(void) |
| 1668 | { |
| 1669 | return(0); |
| 1670 | } |
| 1671 | |
| 1672 | /* |
| 1673 | * pax_usage() |
| 1674 | * print the usage summary to the user |
| 1675 | */ |
| 1676 | |
| 1677 | void |
| 1678 | pax_usage(void) |
| 1679 | { |
| 1680 | (void)fputs( |
| 1681 | "usage: pax [-0cdjnOvz] [-E limit] [-f archive] [-G group] [-s replstr]\n" |
| 1682 | " [-T range] [-U user] [pattern ...]\n" |
| 1683 | " pax -r [-0cDdijknOuvYZz] [-E limit] [-f archive] [-G group] [-o options]\n" |
| 1684 | " [-p string] [-s replstr] [-T range] [-U user] [pattern ...]\n" |
| 1685 | " pax -w [-0adHijLOPtuvXz] [-B bytes] [-b blocksize] [-f archive]\n" |
| 1686 | " [-G group] [-o options] [-s replstr] [-T range] [-U user]\n" |
| 1687 | " [-x format] [file ...]\n" |
| 1688 | " pax -rw [-0DdHikLlnOPtuvXYZ] [-G group] [-p string] [-s replstr]\n" |
| 1689 | " [-T range] [-U user] [file ...] directory\n", |
| 1690 | stderr(&__sF[2])); |
| 1691 | exit(1); |
| 1692 | } |
| 1693 | |
| 1694 | /* |
| 1695 | * tar_usage() |
| 1696 | * print the usage summary to the user |
| 1697 | */ |
| 1698 | |
| 1699 | void |
| 1700 | tar_usage(void) |
| 1701 | { |
| 1702 | (void)fputs( |
| 1703 | "usage: tar {crtux}[014578befHhjLmNOoPpqsvwXZz]\n" |
| 1704 | " [blocking-factor | archive | replstr] [-C directory] [-I file]\n" |
| 1705 | " [file ...]\n" |
| 1706 | " tar {-crtux} [-014578eHhjLmNOoPpqvwXZz] [-b blocking-factor]\n" |
| 1707 | " [-C directory] [-f archive] [-I file] [-s replstr] [file ...]\n", |
| 1708 | stderr(&__sF[2])); |
| 1709 | exit(1); |
| 1710 | } |
| 1711 | |
| 1712 | #ifndef NOCPIO |
| 1713 | /* |
| 1714 | * cpio_usage() |
| 1715 | * print the usage summary to the user |
| 1716 | */ |
| 1717 | |
| 1718 | void |
| 1719 | cpio_usage(void) |
| 1720 | { |
| 1721 | (void)fputs( |
| 1722 | "usage: cpio -o [-AaBcjLvZz] [-C bytes] [-F archive] [-H format]\n" |
| 1723 | " [-O archive] < name-list [> archive]\n" |
| 1724 | " cpio -i [-6BbcdfjmrSstuvZz] [-C bytes] [-E file] [-F archive] [-H format]\n" |
| 1725 | " [-I archive] [pattern ...] [< archive]\n" |
| 1726 | " cpio -p [-adLlmuv] destination-directory < name-list\n", |
| 1727 | stderr(&__sF[2])); |
| 1728 | exit(1); |
| 1729 | } |
| 1730 | #endif /* !NOCPIO */ |
| 1731 | |
| 1732 | #ifndef SMALL |
| 1733 | static int |
| 1734 | compress_id(char *blk, int size) |
| 1735 | { |
| 1736 | if (size >= 2 && blk[0] == '\037' && blk[1] == '\235') { |
| 1737 | paxwarn(0, "input compressed with %s; use the -%c option" |
| 1738 | " to decompress it", "compress", 'Z'); |
| 1739 | exit(1); |
| 1740 | } |
| 1741 | return (-1); |
| 1742 | } |
| 1743 | |
| 1744 | static int |
| 1745 | gzip_id(char *blk, int size) |
| 1746 | { |
| 1747 | if (size >= 2 && blk[0] == '\037' && blk[1] == '\213') { |
| 1748 | paxwarn(0, "input compressed with %s; use the -%c option" |
| 1749 | " to decompress it", "gzip", 'z'); |
| 1750 | exit(1); |
| 1751 | } |
| 1752 | return (-1); |
| 1753 | } |
| 1754 | |
| 1755 | static int |
| 1756 | bzip2_id(char *blk, int size) |
| 1757 | { |
| 1758 | if (size >= 3 && blk[0] == 'B' && blk[1] == 'Z' && blk[2] == 'h') { |
| 1759 | paxwarn(0, "input compressed with %s; use the -%c option" |
| 1760 | " to decompress it", "bzip2", 'j'); |
| 1761 | exit(1); |
| 1762 | } |
| 1763 | return (-1); |
| 1764 | } |
| 1765 | |
| 1766 | static int |
| 1767 | xz_id(char *blk, int size) |
| 1768 | { |
| 1769 | if (size >= 6 && memcmp(blk, "\xFD\x37\x7A\x58\x5A", 6) == 0) { |
| 1770 | paxwarn(0, "input compressed with xz"); |
| 1771 | exit(1); |
| 1772 | } |
| 1773 | return (-1); |
| 1774 | } |
| 1775 | #endif /* !SMALL */ |