1 | /* vi: set sw=4 ts=4: */
|
---|
2 | /*
|
---|
3 | * Common code for gunzip-like applets
|
---|
4 | *
|
---|
5 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
|
---|
6 | */
|
---|
7 | #include "libbb.h"
|
---|
8 | #include "bb_archive.h"
|
---|
9 |
|
---|
10 | /* lzop_main() uses bbunpack(), need this: */
|
---|
11 | //kbuild:lib-$(CONFIG_LZOP) += bbunzip.o
|
---|
12 |
|
---|
13 | /* Note: must be kept in sync with archival/lzop.c */
|
---|
14 | enum {
|
---|
15 | OPT_STDOUT = 1 << 0,
|
---|
16 | OPT_FORCE = 1 << 1,
|
---|
17 | /* only some decompressors: */
|
---|
18 | OPT_VERBOSE = 1 << 2,
|
---|
19 | OPT_QUIET = 1 << 3,
|
---|
20 | OPT_DECOMPRESS = 1 << 4,
|
---|
21 | OPT_TEST = 1 << 5,
|
---|
22 | SEAMLESS_MAGIC = (1 << 31) * SEAMLESS_COMPRESSION,
|
---|
23 | };
|
---|
24 |
|
---|
25 | static
|
---|
26 | int open_to_or_warn(int to_fd, const char *filename, int flags, int mode)
|
---|
27 | {
|
---|
28 | int fd = open3_or_warn(filename, flags, mode);
|
---|
29 | if (fd < 0) {
|
---|
30 | return 1;
|
---|
31 | }
|
---|
32 | xmove_fd(fd, to_fd);
|
---|
33 | return 0;
|
---|
34 | }
|
---|
35 |
|
---|
36 | char* FAST_FUNC append_ext(char *filename, const char *expected_ext)
|
---|
37 | {
|
---|
38 | return xasprintf("%s.%s", filename, expected_ext);
|
---|
39 | }
|
---|
40 |
|
---|
41 | int FAST_FUNC bbunpack(char **argv,
|
---|
42 | IF_DESKTOP(long long) int FAST_FUNC (*unpacker)(transformer_state_t *xstate),
|
---|
43 | char* FAST_FUNC (*make_new_name)(char *filename, const char *expected_ext),
|
---|
44 | const char *expected_ext
|
---|
45 | )
|
---|
46 | {
|
---|
47 | struct stat stat_buf;
|
---|
48 | IF_DESKTOP(long long) int status = 0;
|
---|
49 | char *filename, *new_name;
|
---|
50 | smallint exitcode = 0;
|
---|
51 | transformer_state_t xstate;
|
---|
52 |
|
---|
53 | do {
|
---|
54 | /* NB: new_name is *maybe* malloc'ed! */
|
---|
55 | new_name = NULL;
|
---|
56 | filename = *argv; /* can be NULL - 'streaming' bunzip2 */
|
---|
57 |
|
---|
58 | if (filename && LONE_DASH(filename))
|
---|
59 | filename = NULL;
|
---|
60 |
|
---|
61 | /* Open src */
|
---|
62 | if (filename) {
|
---|
63 | if (!(option_mask32 & SEAMLESS_MAGIC)) {
|
---|
64 | if (stat(filename, &stat_buf) != 0) {
|
---|
65 | err_name:
|
---|
66 | bb_simple_perror_msg(filename);
|
---|
67 | err:
|
---|
68 | exitcode = 1;
|
---|
69 | goto free_name;
|
---|
70 | }
|
---|
71 | if (open_to_or_warn(STDIN_FILENO, filename, O_RDONLY, 0))
|
---|
72 | goto err;
|
---|
73 | } else {
|
---|
74 | /* "clever zcat" with FILE */
|
---|
75 | /* fail_if_not_compressed because zcat refuses uncompressed input */
|
---|
76 | int fd = open_zipped(filename, /*fail_if_not_compressed:*/ 1);
|
---|
77 | if (fd < 0)
|
---|
78 | goto err_name;
|
---|
79 | xmove_fd(fd, STDIN_FILENO);
|
---|
80 | }
|
---|
81 | } else
|
---|
82 | if (option_mask32 & SEAMLESS_MAGIC) {
|
---|
83 | /* "clever zcat" on stdin */
|
---|
84 | if (setup_unzip_on_fd(STDIN_FILENO, /*fail_if_not_compressed*/ 1))
|
---|
85 | goto err;
|
---|
86 | }
|
---|
87 |
|
---|
88 | /* Special cases: test, stdout */
|
---|
89 | if (option_mask32 & (OPT_STDOUT|OPT_TEST)) {
|
---|
90 | if (option_mask32 & OPT_TEST)
|
---|
91 | if (open_to_or_warn(STDOUT_FILENO, bb_dev_null, O_WRONLY, 0))
|
---|
92 | xfunc_die();
|
---|
93 | filename = NULL;
|
---|
94 | }
|
---|
95 |
|
---|
96 | /* Open dst if we are going to unpack to file */
|
---|
97 | if (filename) {
|
---|
98 | new_name = make_new_name(filename, expected_ext);
|
---|
99 | if (!new_name) {
|
---|
100 | bb_error_msg("%s: unknown suffix - ignored", filename);
|
---|
101 | goto err;
|
---|
102 | }
|
---|
103 |
|
---|
104 | /* -f: overwrite existing output files */
|
---|
105 | if (option_mask32 & OPT_FORCE) {
|
---|
106 | unlink(new_name);
|
---|
107 | }
|
---|
108 |
|
---|
109 | /* O_EXCL: "real" bunzip2 doesn't overwrite files */
|
---|
110 | /* GNU gunzip does not bail out, but goes to next file */
|
---|
111 | if (open_to_or_warn(STDOUT_FILENO, new_name, O_WRONLY | O_CREAT | O_EXCL,
|
---|
112 | stat_buf.st_mode))
|
---|
113 | goto err;
|
---|
114 | }
|
---|
115 |
|
---|
116 | /* Check that the input is sane */
|
---|
117 | if (!(option_mask32 & OPT_FORCE) && isatty(STDIN_FILENO)) {
|
---|
118 | bb_error_msg_and_die("compressed data not read from terminal, "
|
---|
119 | "use -f to force it");
|
---|
120 | }
|
---|
121 |
|
---|
122 | if (!(option_mask32 & SEAMLESS_MAGIC)) {
|
---|
123 | init_transformer_state(&xstate);
|
---|
124 | xstate.signature_skipped = 0;
|
---|
125 | /*xstate.src_fd = STDIN_FILENO; - already is */
|
---|
126 | xstate.dst_fd = STDOUT_FILENO;
|
---|
127 | status = unpacker(&xstate);
|
---|
128 | if (status < 0)
|
---|
129 | exitcode = 1;
|
---|
130 | } else {
|
---|
131 | if (bb_copyfd_eof(STDIN_FILENO, STDOUT_FILENO) < 0)
|
---|
132 | /* Disk full, tty closed, etc. No point in continuing */
|
---|
133 | xfunc_die();
|
---|
134 | }
|
---|
135 |
|
---|
136 | if (!(option_mask32 & OPT_STDOUT))
|
---|
137 | xclose(STDOUT_FILENO); /* with error check! */
|
---|
138 |
|
---|
139 | if (filename) {
|
---|
140 | char *del = new_name;
|
---|
141 |
|
---|
142 | if (status >= 0) {
|
---|
143 | unsigned new_name_len;
|
---|
144 |
|
---|
145 | /* TODO: restore other things? */
|
---|
146 | if (xstate.mtime != 0) {
|
---|
147 | struct timeval times[2];
|
---|
148 |
|
---|
149 | times[1].tv_sec = times[0].tv_sec = xstate.mtime;
|
---|
150 | times[1].tv_usec = times[0].tv_usec = 0;
|
---|
151 | /* Note: we closed it first.
|
---|
152 | * On some systems calling utimes
|
---|
153 | * then closing resets the mtime
|
---|
154 | * back to current time. */
|
---|
155 | utimes(new_name, times); /* ignoring errors */
|
---|
156 | }
|
---|
157 |
|
---|
158 | if (ENABLE_DESKTOP)
|
---|
159 | new_name_len = strlen(new_name);
|
---|
160 | /* Restore source filename (unless tgz -> tar case) */
|
---|
161 | if (new_name == filename) {
|
---|
162 | new_name_len = strlen(filename);
|
---|
163 | filename[new_name_len] = '.';
|
---|
164 | }
|
---|
165 | /* Extreme bloat for gunzip compat */
|
---|
166 | /* Some users do want this info... */
|
---|
167 | if (ENABLE_DESKTOP && (option_mask32 & OPT_VERBOSE)) {
|
---|
168 | unsigned percent = status
|
---|
169 | ? ((uoff_t)stat_buf.st_size * 100u / (unsigned long long)status)
|
---|
170 | : 0;
|
---|
171 | fprintf(stderr, "%s: %u%% - replaced with %.*s\n",
|
---|
172 | filename,
|
---|
173 | 100u - percent,
|
---|
174 | new_name_len, new_name
|
---|
175 | );
|
---|
176 | }
|
---|
177 | /* Delete _source_ file */
|
---|
178 | del = filename;
|
---|
179 | }
|
---|
180 | xunlink(del);
|
---|
181 | free_name:
|
---|
182 | if (new_name != filename)
|
---|
183 | free(new_name);
|
---|
184 | }
|
---|
185 | } while (*argv && *++argv);
|
---|
186 |
|
---|
187 | if (option_mask32 & OPT_STDOUT)
|
---|
188 | xclose(STDOUT_FILENO); /* with error check! */
|
---|
189 |
|
---|
190 | return exitcode;
|
---|
191 | }
|
---|
192 |
|
---|
193 | #if ENABLE_UNCOMPRESS || ENABLE_BUNZIP2 || ENABLE_UNLZMA || ENABLE_UNXZ
|
---|
194 | static
|
---|
195 | char* FAST_FUNC make_new_name_generic(char *filename, const char *expected_ext)
|
---|
196 | {
|
---|
197 | char *extension = strrchr(filename, '.');
|
---|
198 | if (!extension || strcmp(extension + 1, expected_ext) != 0) {
|
---|
199 | /* Mimic GNU gunzip - "real" bunzip2 tries to */
|
---|
200 | /* unpack file anyway, to file.out */
|
---|
201 | return NULL;
|
---|
202 | }
|
---|
203 | *extension = '\0';
|
---|
204 | return filename;
|
---|
205 | }
|
---|
206 | #endif
|
---|
207 |
|
---|
208 |
|
---|
209 | /*
|
---|
210 | * Uncompress applet for busybox (c) 2002 Glenn McGrath
|
---|
211 | *
|
---|
212 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
|
---|
213 | */
|
---|
214 | //usage:#define uncompress_trivial_usage
|
---|
215 | //usage: "[-cf] [FILE]..."
|
---|
216 | //usage:#define uncompress_full_usage "\n\n"
|
---|
217 | //usage: "Decompress .Z file[s]\n"
|
---|
218 | //usage: "\n -c Write to stdout"
|
---|
219 | //usage: "\n -f Overwrite"
|
---|
220 |
|
---|
221 | //config:config UNCOMPRESS
|
---|
222 | //config: bool "uncompress"
|
---|
223 | //config: default n # ancient
|
---|
224 | //config: help
|
---|
225 | //config: uncompress is used to decompress archives created by compress.
|
---|
226 | //config: Not much used anymore, replaced by gzip/gunzip.
|
---|
227 |
|
---|
228 | //applet:IF_UNCOMPRESS(APPLET(uncompress, BB_DIR_BIN, BB_SUID_DROP))
|
---|
229 | //kbuild:lib-$(CONFIG_UNCOMPRESS) += bbunzip.o
|
---|
230 | #if ENABLE_UNCOMPRESS
|
---|
231 | int uncompress_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
---|
232 | int uncompress_main(int argc UNUSED_PARAM, char **argv)
|
---|
233 | {
|
---|
234 | getopt32(argv, "cf");
|
---|
235 | argv += optind;
|
---|
236 |
|
---|
237 | return bbunpack(argv, unpack_Z_stream, make_new_name_generic, "Z");
|
---|
238 | }
|
---|
239 | #endif
|
---|
240 |
|
---|
241 |
|
---|
242 | /*
|
---|
243 | * Gzip implementation for busybox
|
---|
244 | *
|
---|
245 | * Based on GNU gzip v1.2.4 Copyright (C) 1992-1993 Jean-loup Gailly.
|
---|
246 | *
|
---|
247 | * Originally adjusted for busybox by Sven Rudolph <sr1@inf.tu-dresden.de>
|
---|
248 | * based on gzip sources
|
---|
249 | *
|
---|
250 | * Adjusted further by Erik Andersen <andersen@codepoet.org> to support files as
|
---|
251 | * well as stdin/stdout, and to generally behave itself wrt command line
|
---|
252 | * handling.
|
---|
253 | *
|
---|
254 | * General cleanup to better adhere to the style guide and make use of standard
|
---|
255 | * busybox functions by Glenn McGrath
|
---|
256 | *
|
---|
257 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
|
---|
258 | *
|
---|
259 | * gzip (GNU zip) -- compress files with zip algorithm and 'compress' interface
|
---|
260 | * Copyright (C) 1992-1993 Jean-loup Gailly
|
---|
261 | * The unzip code was written and put in the public domain by Mark Adler.
|
---|
262 | * Portions of the lzw code are derived from the public domain 'compress'
|
---|
263 | * written by Spencer Thomas, Joe Orost, James Woods, Jim McKie, Steve Davies,
|
---|
264 | * Ken Turkowski, Dave Mack and Peter Jannesen.
|
---|
265 | */
|
---|
266 | //usage:#define gunzip_trivial_usage
|
---|
267 | //usage: "[-cft] [FILE]..."
|
---|
268 | //usage:#define gunzip_full_usage "\n\n"
|
---|
269 | //usage: "Decompress FILEs (or stdin)\n"
|
---|
270 | //usage: "\n -c Write to stdout"
|
---|
271 | //usage: "\n -f Force"
|
---|
272 | //usage: "\n -t Test file integrity"
|
---|
273 | //usage:
|
---|
274 | //usage:#define gunzip_example_usage
|
---|
275 | //usage: "$ ls -la /tmp/BusyBox*\n"
|
---|
276 | //usage: "-rw-rw-r-- 1 andersen andersen 557009 Apr 11 10:55 /tmp/BusyBox-0.43.tar.gz\n"
|
---|
277 | //usage: "$ gunzip /tmp/BusyBox-0.43.tar.gz\n"
|
---|
278 | //usage: "$ ls -la /tmp/BusyBox*\n"
|
---|
279 | //usage: "-rw-rw-r-- 1 andersen andersen 1761280 Apr 14 17:47 /tmp/BusyBox-0.43.tar\n"
|
---|
280 | //usage:
|
---|
281 | //usage:#define zcat_trivial_usage
|
---|
282 | //usage: "[FILE]..."
|
---|
283 | //usage:#define zcat_full_usage "\n\n"
|
---|
284 | //usage: "Decompress to stdout"
|
---|
285 |
|
---|
286 | //config:config GUNZIP
|
---|
287 | //config: bool "gunzip"
|
---|
288 | //config: default y
|
---|
289 | //config: help
|
---|
290 | //config: gunzip is used to decompress archives created by gzip.
|
---|
291 | //config: You can use the `-t' option to test the integrity of
|
---|
292 | //config: an archive, without decompressing it.
|
---|
293 | //config:
|
---|
294 | //config:config FEATURE_GUNZIP_LONG_OPTIONS
|
---|
295 | //config: bool "Enable long options"
|
---|
296 | //config: default y
|
---|
297 | //config: depends on GUNZIP && LONG_OPTS
|
---|
298 | //config: help
|
---|
299 | //config: Enable use of long options.
|
---|
300 |
|
---|
301 | //applet:IF_GUNZIP(APPLET(gunzip, BB_DIR_BIN, BB_SUID_DROP))
|
---|
302 | //applet:IF_GUNZIP(APPLET_ODDNAME(zcat, gunzip, BB_DIR_BIN, BB_SUID_DROP, zcat))
|
---|
303 | //kbuild:lib-$(CONFIG_GZIP) += bbunzip.o
|
---|
304 | //kbuild:lib-$(CONFIG_GUNZIP) += bbunzip.o
|
---|
305 | #if ENABLE_GUNZIP
|
---|
306 | static
|
---|
307 | char* FAST_FUNC make_new_name_gunzip(char *filename, const char *expected_ext UNUSED_PARAM)
|
---|
308 | {
|
---|
309 | char *extension = strrchr(filename, '.');
|
---|
310 |
|
---|
311 | if (!extension)
|
---|
312 | return NULL;
|
---|
313 |
|
---|
314 | extension++;
|
---|
315 | if (strcmp(extension, "tgz" + 1) == 0
|
---|
316 | #if ENABLE_FEATURE_SEAMLESS_Z
|
---|
317 | || (extension[0] == 'Z' && extension[1] == '\0')
|
---|
318 | #endif
|
---|
319 | ) {
|
---|
320 | extension[-1] = '\0';
|
---|
321 | } else if (strcmp(extension, "tgz") == 0) {
|
---|
322 | filename = xstrdup(filename);
|
---|
323 | extension = strrchr(filename, '.');
|
---|
324 | extension[2] = 'a';
|
---|
325 | extension[3] = 'r';
|
---|
326 | } else {
|
---|
327 | return NULL;
|
---|
328 | }
|
---|
329 | return filename;
|
---|
330 | }
|
---|
331 |
|
---|
332 | #if ENABLE_FEATURE_GUNZIP_LONG_OPTIONS
|
---|
333 | static const char gunzip_longopts[] ALIGN1 =
|
---|
334 | "stdout\0" No_argument "c"
|
---|
335 | "to-stdout\0" No_argument "c"
|
---|
336 | "force\0" No_argument "f"
|
---|
337 | "test\0" No_argument "t"
|
---|
338 | "no-name\0" No_argument "n"
|
---|
339 | ;
|
---|
340 | #endif
|
---|
341 |
|
---|
342 | /*
|
---|
343 | * Linux kernel build uses gzip -d -n. We accept and ignore it.
|
---|
344 | * Man page says:
|
---|
345 | * -n --no-name
|
---|
346 | * gzip: do not save the original file name and time stamp.
|
---|
347 | * (The original name is always saved if the name had to be truncated.)
|
---|
348 | * gunzip: do not restore the original file name/time even if present
|
---|
349 | * (remove only the gzip suffix from the compressed file name).
|
---|
350 | * This option is the default when decompressing.
|
---|
351 | * -N --name
|
---|
352 | * gzip: always save the original file name and time stamp (this is the default)
|
---|
353 | * gunzip: restore the original file name and time stamp if present.
|
---|
354 | */
|
---|
355 | int gunzip_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
---|
356 | int gunzip_main(int argc UNUSED_PARAM, char **argv)
|
---|
357 | {
|
---|
358 | #if ENABLE_FEATURE_GUNZIP_LONG_OPTIONS
|
---|
359 | applet_long_options = gunzip_longopts;
|
---|
360 | #endif
|
---|
361 | getopt32(argv, "cfvqdtn");
|
---|
362 | argv += optind;
|
---|
363 |
|
---|
364 | /* If called as zcat...
|
---|
365 | * Normally, "zcat" is just "gunzip -c".
|
---|
366 | * But if seamless magic is enabled, then we are much more clever.
|
---|
367 | */
|
---|
368 | if (applet_name[1] == 'c')
|
---|
369 | option_mask32 |= OPT_STDOUT | SEAMLESS_MAGIC;
|
---|
370 |
|
---|
371 | return bbunpack(argv, unpack_gz_stream, make_new_name_gunzip, /*unused:*/ NULL);
|
---|
372 | }
|
---|
373 | #endif
|
---|
374 |
|
---|
375 |
|
---|
376 | /*
|
---|
377 | * Modified for busybox by Glenn McGrath
|
---|
378 | * Added support output to stdout by Thomas Lundquist <thomasez@zelow.no>
|
---|
379 | *
|
---|
380 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
|
---|
381 | */
|
---|
382 | //usage:#define bunzip2_trivial_usage
|
---|
383 | //usage: "[-cf] [FILE]..."
|
---|
384 | //usage:#define bunzip2_full_usage "\n\n"
|
---|
385 | //usage: "Decompress FILEs (or stdin)\n"
|
---|
386 | //usage: "\n -c Write to stdout"
|
---|
387 | //usage: "\n -f Force"
|
---|
388 | //usage:#define bzcat_trivial_usage
|
---|
389 | //usage: "[FILE]..."
|
---|
390 | //usage:#define bzcat_full_usage "\n\n"
|
---|
391 | //usage: "Decompress to stdout"
|
---|
392 |
|
---|
393 | //config:config BUNZIP2
|
---|
394 | //config: bool "bunzip2"
|
---|
395 | //config: default y
|
---|
396 | //config: help
|
---|
397 | //config: bunzip2 is a compression utility using the Burrows-Wheeler block
|
---|
398 | //config: sorting text compression algorithm, and Huffman coding. Compression
|
---|
399 | //config: is generally considerably better than that achieved by more
|
---|
400 | //config: conventional LZ77/LZ78-based compressors, and approaches the
|
---|
401 | //config: performance of the PPM family of statistical compressors.
|
---|
402 | //config:
|
---|
403 | //config: Unless you have a specific application which requires bunzip2, you
|
---|
404 | //config: should probably say N here.
|
---|
405 |
|
---|
406 | //applet:IF_BUNZIP2(APPLET(bunzip2, BB_DIR_USR_BIN, BB_SUID_DROP))
|
---|
407 | //applet:IF_BUNZIP2(APPLET_ODDNAME(bzcat, bunzip2, BB_DIR_USR_BIN, BB_SUID_DROP, bzcat))
|
---|
408 | //kbuild:lib-$(CONFIG_BZIP2) += bbunzip.o
|
---|
409 | //kbuild:lib-$(CONFIG_BUNZIP2) += bbunzip.o
|
---|
410 | #if ENABLE_BUNZIP2
|
---|
411 | int bunzip2_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
---|
412 | int bunzip2_main(int argc UNUSED_PARAM, char **argv)
|
---|
413 | {
|
---|
414 | getopt32(argv, "cfvqdt");
|
---|
415 | argv += optind;
|
---|
416 | if (applet_name[2] == 'c') /* bzcat */
|
---|
417 | option_mask32 |= OPT_STDOUT;
|
---|
418 |
|
---|
419 | return bbunpack(argv, unpack_bz2_stream, make_new_name_generic, "bz2");
|
---|
420 | }
|
---|
421 | #endif
|
---|
422 |
|
---|
423 |
|
---|
424 | /*
|
---|
425 | * Small lzma deflate implementation.
|
---|
426 | * Copyright (C) 2006 Aurelien Jacobs <aurel@gnuage.org>
|
---|
427 | *
|
---|
428 | * Based on bunzip.c from busybox
|
---|
429 | *
|
---|
430 | * Licensed under GPLv2, see file LICENSE in this source tree.
|
---|
431 | */
|
---|
432 | //usage:#define unlzma_trivial_usage
|
---|
433 | //usage: "[-cf] [FILE]..."
|
---|
434 | //usage:#define unlzma_full_usage "\n\n"
|
---|
435 | //usage: "Decompress FILE (or stdin)\n"
|
---|
436 | //usage: "\n -c Write to stdout"
|
---|
437 | //usage: "\n -f Force"
|
---|
438 | //usage:
|
---|
439 | //usage:#define lzma_trivial_usage
|
---|
440 | //usage: "-d [-cf] [FILE]..."
|
---|
441 | //usage:#define lzma_full_usage "\n\n"
|
---|
442 | //usage: "Decompress FILE (or stdin)\n"
|
---|
443 | //usage: "\n -d Decompress"
|
---|
444 | //usage: "\n -c Write to stdout"
|
---|
445 | //usage: "\n -f Force"
|
---|
446 | //usage:
|
---|
447 | //usage:#define lzcat_trivial_usage
|
---|
448 | //usage: "[FILE]..."
|
---|
449 | //usage:#define lzcat_full_usage "\n\n"
|
---|
450 | //usage: "Decompress to stdout"
|
---|
451 | //usage:
|
---|
452 | //usage:#define unxz_trivial_usage
|
---|
453 | //usage: "[-cf] [FILE]..."
|
---|
454 | //usage:#define unxz_full_usage "\n\n"
|
---|
455 | //usage: "Decompress FILE (or stdin)\n"
|
---|
456 | //usage: "\n -c Write to stdout"
|
---|
457 | //usage: "\n -f Force"
|
---|
458 | //usage:
|
---|
459 | //usage:#define xz_trivial_usage
|
---|
460 | //usage: "-d [-cf] [FILE]..."
|
---|
461 | //usage:#define xz_full_usage "\n\n"
|
---|
462 | //usage: "Decompress FILE (or stdin)\n"
|
---|
463 | //usage: "\n -d Decompress"
|
---|
464 | //usage: "\n -c Write to stdout"
|
---|
465 | //usage: "\n -f Force"
|
---|
466 | //usage:
|
---|
467 | //usage:#define xzcat_trivial_usage
|
---|
468 | //usage: "[FILE]..."
|
---|
469 | //usage:#define xzcat_full_usage "\n\n"
|
---|
470 | //usage: "Decompress to stdout"
|
---|
471 |
|
---|
472 | //config:config UNLZMA
|
---|
473 | //config: bool "unlzma"
|
---|
474 | //config: default y
|
---|
475 | //config: help
|
---|
476 | //config: unlzma is a compression utility using the Lempel-Ziv-Markov chain
|
---|
477 | //config: compression algorithm, and range coding. Compression
|
---|
478 | //config: is generally considerably better than that achieved by the bzip2
|
---|
479 | //config: compressors.
|
---|
480 | //config:
|
---|
481 | //config: The BusyBox unlzma applet is limited to decompression only.
|
---|
482 | //config: On an x86 system, this applet adds about 4K.
|
---|
483 | //config:
|
---|
484 | //config:config FEATURE_LZMA_FAST
|
---|
485 | //config: bool "Optimize unlzma for speed"
|
---|
486 | //config: default n
|
---|
487 | //config: depends on UNLZMA
|
---|
488 | //config: help
|
---|
489 | //config: This option reduces decompression time by about 25% at the cost of
|
---|
490 | //config: a 1K bigger binary.
|
---|
491 | //config:
|
---|
492 | //config:config LZMA
|
---|
493 | //config: bool "Provide lzma alias which supports only unpacking"
|
---|
494 | //config: default y
|
---|
495 | //config: depends on UNLZMA
|
---|
496 | //config: help
|
---|
497 | //config: Enable this option if you want commands like "lzma -d" to work.
|
---|
498 | //config: IOW: you'll get lzma applet, but it will always require -d option.
|
---|
499 |
|
---|
500 | //applet:IF_UNLZMA(APPLET(unlzma, BB_DIR_USR_BIN, BB_SUID_DROP))
|
---|
501 | //applet:IF_UNLZMA(APPLET_ODDNAME(lzcat, unlzma, BB_DIR_USR_BIN, BB_SUID_DROP, lzcat))
|
---|
502 | //applet:IF_LZMA(APPLET_ODDNAME(lzma, unlzma, BB_DIR_USR_BIN, BB_SUID_DROP, lzma))
|
---|
503 | //kbuild:lib-$(CONFIG_UNLZMA) += bbunzip.o
|
---|
504 | #if ENABLE_UNLZMA
|
---|
505 | int unlzma_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
---|
506 | int unlzma_main(int argc UNUSED_PARAM, char **argv)
|
---|
507 | {
|
---|
508 | IF_LZMA(int opts =) getopt32(argv, "cfvqdt");
|
---|
509 | # if ENABLE_LZMA
|
---|
510 | /* lzma without -d or -t? */
|
---|
511 | if (applet_name[2] == 'm' && !(opts & (OPT_DECOMPRESS|OPT_TEST)))
|
---|
512 | bb_show_usage();
|
---|
513 | # endif
|
---|
514 | /* lzcat? */
|
---|
515 | if (applet_name[2] == 'c')
|
---|
516 | option_mask32 |= OPT_STDOUT;
|
---|
517 |
|
---|
518 | argv += optind;
|
---|
519 | return bbunpack(argv, unpack_lzma_stream, make_new_name_generic, "lzma");
|
---|
520 | }
|
---|
521 | #endif
|
---|
522 |
|
---|
523 |
|
---|
524 | //config:config UNXZ
|
---|
525 | //config: bool "unxz"
|
---|
526 | //config: default y
|
---|
527 | //config: help
|
---|
528 | //config: unxz is a unlzma successor.
|
---|
529 | //config:
|
---|
530 | //config:config XZ
|
---|
531 | //config: bool "Provide xz alias which supports only unpacking"
|
---|
532 | //config: default y
|
---|
533 | //config: depends on UNXZ
|
---|
534 | //config: help
|
---|
535 | //config: Enable this option if you want commands like "xz -d" to work.
|
---|
536 | //config: IOW: you'll get xz applet, but it will always require -d option.
|
---|
537 |
|
---|
538 | //applet:IF_UNXZ(APPLET(unxz, BB_DIR_USR_BIN, BB_SUID_DROP))
|
---|
539 | //applet:IF_UNXZ(APPLET_ODDNAME(xzcat, unxz, BB_DIR_USR_BIN, BB_SUID_DROP, xzcat))
|
---|
540 | //applet:IF_XZ(APPLET_ODDNAME(xz, unxz, BB_DIR_USR_BIN, BB_SUID_DROP, xz))
|
---|
541 | //kbuild:lib-$(CONFIG_UNXZ) += bbunzip.o
|
---|
542 | #if ENABLE_UNXZ
|
---|
543 | int unxz_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
---|
544 | int unxz_main(int argc UNUSED_PARAM, char **argv)
|
---|
545 | {
|
---|
546 | IF_XZ(int opts =) getopt32(argv, "cfvqdt");
|
---|
547 | # if ENABLE_XZ
|
---|
548 | /* xz without -d or -t? */
|
---|
549 | if (applet_name[2] == '\0' && !(opts & (OPT_DECOMPRESS|OPT_TEST)))
|
---|
550 | bb_show_usage();
|
---|
551 | # endif
|
---|
552 | /* xzcat? */
|
---|
553 | if (applet_name[2] == 'c')
|
---|
554 | option_mask32 |= OPT_STDOUT;
|
---|
555 |
|
---|
556 | argv += optind;
|
---|
557 | return bbunpack(argv, unpack_xz_stream, make_new_name_generic, "xz");
|
---|
558 | }
|
---|
559 | #endif
|
---|