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1 | # | ||
2 | # For a description of the syntax of this configuration file, | ||
3 | # see scripts/kbuild/config-language.txt. | ||
4 | # | ||
5 | |||
6 | menu "Archival Utilities" | ||
7 | |||
8 | config FEATURE_SEAMLESS_XZ | ||
9 | bool "Make tar, rpm, modprobe etc understand .xz data" | ||
10 | default y | ||
11 | help | ||
12 | Make tar, rpm, modprobe etc understand .xz data. | ||
13 | |||
14 | config FEATURE_SEAMLESS_LZMA | ||
15 | bool "Make tar, rpm, modprobe etc understand .lzma data" | ||
16 | default y | ||
17 | help | ||
18 | Make tar, rpm, modprobe etc understand .lzma data. | ||
19 | |||
20 | config FEATURE_SEAMLESS_BZ2 | ||
21 | bool "Make tar, rpm, modprobe etc understand .bz2 data" | ||
22 | default y | ||
23 | help | ||
24 | Make tar, rpm, modprobe etc understand .bz2 data. | ||
25 | |||
26 | config FEATURE_SEAMLESS_GZ | ||
27 | bool "Make tar, rpm, modprobe etc understand .gz data" | ||
28 | default y | ||
29 | help | ||
30 | Make tar, rpm, modprobe etc understand .gz data. | ||
31 | |||
32 | config FEATURE_SEAMLESS_Z | ||
33 | bool "Make tar and gunzip understand .Z data" | ||
34 | default n | ||
35 | help | ||
36 | Make tar and gunzip understand .Z data. | ||
37 | |||
38 | config AR | ||
39 | bool "ar" | ||
40 | default y | ||
41 | help | ||
42 | ar is an archival utility program used to create, modify, and | ||
43 | extract contents from archives. An archive is a single file holding | ||
44 | a collection of other files in a structure that makes it possible to | ||
45 | retrieve the original individual files (called archive members). | ||
46 | The original files' contents, mode (permissions), timestamp, owner, | ||
47 | and group are preserved in the archive, and can be restored on | ||
48 | extraction. | ||
49 | |||
50 | The stored filename is limited to 15 characters. (for more information | ||
51 | see long filename support). | ||
52 | ar has 60 bytes of overheads for every stored file. | ||
53 | |||
54 | This implementation of ar can extract archives, it cannot create or | ||
55 | modify them. | ||
56 | On an x86 system, the ar applet adds about 1K. | ||
57 | |||
58 | Unless you have a specific application which requires ar, you should | ||
59 | probably say N here. | ||
60 | |||
61 | config FEATURE_AR_LONG_FILENAMES | ||
62 | bool "Support for long filenames (not needed for debs)" | ||
63 | default y | ||
64 | depends on AR | ||
65 | help | ||
66 | By default the ar format can only store the first 15 characters | ||
67 | of the filename, this option removes that limitation. | ||
68 | It supports the GNU ar long filename method which moves multiple long | ||
69 | filenames into a the data section of a new ar entry. | ||
70 | |||
71 | config FEATURE_AR_CREATE | ||
72 | bool "Support archive creation" | ||
73 | default y | ||
74 | depends on AR | ||
75 | help | ||
76 | This enables archive creation (-c and -r) with busybox ar. | ||
77 | |||
78 | config BUNZIP2 | ||
79 | bool "bunzip2" | ||
80 | default y | ||
81 | help | ||
82 | bunzip2 is a compression utility using the Burrows-Wheeler block | ||
83 | sorting text compression algorithm, and Huffman coding. Compression | ||
84 | is generally considerably better than that achieved by more | ||
85 | conventional LZ77/LZ78-based compressors, and approaches the | ||
86 | performance of the PPM family of statistical compressors. | ||
87 | |||
88 | Unless you have a specific application which requires bunzip2, you | ||
89 | should probably say N here. | ||
90 | |||
91 | config BZIP2 | ||
92 | bool "bzip2" | ||
93 | default y | ||
94 | help | ||
95 | bzip2 is a compression utility using the Burrows-Wheeler block | ||
96 | sorting text compression algorithm, and Huffman coding. Compression | ||
97 | is generally considerably better than that achieved by more | ||
98 | conventional LZ77/LZ78-based compressors, and approaches the | ||
99 | performance of the PPM family of statistical compressors. | ||
100 | |||
101 | Unless you have a specific application which requires bzip2, you | ||
102 | should probably say N here. | ||
103 | |||
104 | config CPIO | ||
105 | bool "cpio" | ||
106 | default y | ||
107 | help | ||
108 | cpio is an archival utility program used to create, modify, and | ||
109 | extract contents from archives. | ||
110 | cpio has 110 bytes of overheads for every stored file. | ||
111 | |||
112 | This implementation of cpio can extract cpio archives created in the | ||
113 | "newc" or "crc" format, it cannot create or modify them. | ||
114 | |||
115 | Unless you have a specific application which requires cpio, you | ||
116 | should probably say N here. | ||
117 | |||
118 | config FEATURE_CPIO_O | ||
119 | bool "Support for archive creation" | ||
120 | default y | ||
121 | depends on CPIO | ||
122 | help | ||
123 | This implementation of cpio can create cpio archives in the "newc" | ||
124 | format only. | ||
125 | |||
126 | config FEATURE_CPIO_P | ||
127 | bool "Support for passthrough mode" | ||
128 | default y | ||
129 | depends on FEATURE_CPIO_O | ||
130 | help | ||
131 | Passthrough mode. Rarely used. | ||
132 | |||
133 | config DPKG | ||
134 | bool "dpkg" | ||
135 | default n | ||
136 | select FEATURE_SEAMLESS_GZ | ||
137 | help | ||
138 | dpkg is a medium-level tool to install, build, remove and manage | ||
139 | Debian packages. | ||
140 | |||
141 | This implementation of dpkg has a number of limitations, | ||
142 | you should use the official dpkg if possible. | ||
143 | |||
144 | config DPKG_DEB | ||
145 | bool "dpkg_deb" | ||
146 | default n | ||
147 | select FEATURE_SEAMLESS_GZ | ||
148 | help | ||
149 | dpkg-deb unpacks and provides information about Debian archives. | ||
150 | |||
151 | This implementation of dpkg-deb cannot pack archives. | ||
152 | |||
153 | Unless you have a specific application which requires dpkg-deb, | ||
154 | say N here. | ||
155 | |||
156 | config FEATURE_DPKG_DEB_EXTRACT_ONLY | ||
157 | bool "Extract only (-x)" | ||
158 | default n | ||
159 | depends on DPKG_DEB | ||
160 | help | ||
161 | This reduces dpkg-deb to the equivalent of | ||
162 | "ar -p <deb> data.tar.gz | tar -zx". However it saves space as none | ||
163 | of the extra dpkg-deb, ar or tar options are needed, they are linked | ||
164 | to internally. | ||
165 | |||
166 | config GUNZIP | ||
167 | bool "gunzip" | ||
168 | default y | ||
169 | help | ||
170 | gunzip is used to decompress archives created by gzip. | ||
171 | You can use the `-t' option to test the integrity of | ||
172 | an archive, without decompressing it. | ||
173 | |||
174 | config GZIP | ||
175 | bool "gzip" | ||
176 | default y | ||
177 | help | ||
178 | gzip is used to compress files. | ||
179 | It's probably the most widely used UNIX compression program. | ||
180 | |||
181 | config FEATURE_GZIP_LONG_OPTIONS | ||
182 | bool "Enable long options" | ||
183 | default y | ||
184 | depends on GZIP && LONG_OPTS | ||
185 | help | ||
186 | Enable use of long options, increases size by about 106 Bytes | ||
187 | |||
188 | config LZOP | ||
189 | bool "lzop" | ||
190 | default y | ||
191 | help | ||
192 | Lzop compression/decompresion. | ||
193 | |||
194 | config LZOP_COMPR_HIGH | ||
195 | bool "lzop complession levels 7,8,9 (not very useful)" | ||
196 | default n | ||
197 | depends on LZOP | ||
198 | help | ||
199 | High levels (7,8,9) of lzop compression. These levels | ||
200 | are actually slower than gzip at equivalent compression ratios | ||
201 | and take up 3.2K of code. | ||
202 | |||
203 | config RPM2CPIO | ||
204 | bool "rpm2cpio" | ||
205 | default y | ||
206 | help | ||
207 | Converts an RPM file into a CPIO archive. | ||
208 | |||
209 | config RPM | ||
210 | bool "rpm" | ||
211 | default y | ||
212 | help | ||
213 | Mini RPM applet - queries and extracts RPM packages. | ||
214 | |||
215 | config TAR | ||
216 | bool "tar" | ||
217 | default y | ||
218 | help | ||
219 | tar is an archiving program. It's commonly used with gzip to | ||
220 | create compressed archives. It's probably the most widely used | ||
221 | UNIX archive program. | ||
222 | |||
223 | config FEATURE_TAR_CREATE | ||
224 | bool "Enable archive creation" | ||
225 | default y | ||
226 | depends on TAR | ||
227 | help | ||
228 | If you enable this option you'll be able to create | ||
229 | tar archives using the `-c' option. | ||
230 | |||
231 | config FEATURE_TAR_AUTODETECT | ||
232 | bool "Autodetect compressed tarballs" | ||
233 | default y | ||
234 | depends on TAR && (FEATURE_SEAMLESS_Z || FEATURE_SEAMLESS_GZ || FEATURE_SEAMLESS_BZ2 || FEATURE_SEAMLESS_LZMA || FEATURE_SEAMLESS_XZ) | ||
235 | help | ||
236 | With this option tar can automatically detect compressed | ||
237 | tarballs. Currently it works only on files (not pipes etc). | ||
238 | |||
239 | config FEATURE_TAR_FROM | ||
240 | bool "Enable -X (exclude from) and -T (include from) options)" | ||
241 | default y | ||
242 | depends on TAR | ||
243 | help | ||
244 | If you enable this option you'll be able to specify | ||
245 | a list of files to include or exclude from an archive. | ||
246 | |||
247 | config FEATURE_TAR_OLDGNU_COMPATIBILITY | ||
248 | bool "Support for old tar header format" | ||
249 | default y | ||
250 | depends on TAR || DPKG | ||
251 | help | ||
252 | This option is required to unpack archives created in | ||
253 | the old GNU format; help to kill this old format by | ||
254 | repacking your ancient archives with the new format. | ||
255 | |||
256 | config FEATURE_TAR_OLDSUN_COMPATIBILITY | ||
257 | bool "Enable untarring of tarballs with checksums produced by buggy Sun tar" | ||
258 | default y | ||
259 | depends on TAR || DPKG | ||
260 | help | ||
261 | This option is required to unpack archives created by some old | ||
262 | version of Sun's tar (it was calculating checksum using signed | ||
263 | arithmetic). It is said to be fixed in newer Sun tar, but "old" | ||
264 | tarballs still exist. | ||
265 | |||
266 | config FEATURE_TAR_GNU_EXTENSIONS | ||
267 | bool "Support for GNU tar extensions (long filenames)" | ||
268 | default y | ||
269 | depends on TAR || DPKG | ||
270 | help | ||
271 | With this option busybox supports GNU long filenames and | ||
272 | linknames. | ||
273 | |||
274 | config FEATURE_TAR_LONG_OPTIONS | ||
275 | bool "Enable long options" | ||
276 | default y | ||
277 | depends on TAR && LONG_OPTS | ||
278 | help | ||
279 | Enable use of long options, increases size by about 400 Bytes | ||
280 | |||
281 | config FEATURE_TAR_UNAME_GNAME | ||
282 | bool "Enable use of user and group names" | ||
283 | default y | ||
284 | depends on TAR | ||
285 | help | ||
286 | Enables use of user and group names in tar. This affects contents | ||
287 | listings (-t) and preserving permissions when unpacking (-p). | ||
288 | +200 bytes. | ||
289 | |||
290 | config FEATURE_TAR_NOPRESERVE_TIME | ||
291 | bool "Enable -m (do not preserve time) option" | ||
292 | default y | ||
293 | depends on TAR | ||
294 | help | ||
295 | With this option busybox supports GNU tar -m | ||
296 | (do not preserve time) option. | ||
297 | |||
298 | config FEATURE_TAR_SELINUX | ||
299 | bool "Support for extracting SELinux labels" | ||
300 | default n | ||
301 | depends on TAR && SELINUX | ||
302 | help | ||
303 | With this option busybox supports restoring SELinux labels | ||
304 | when extracting files from tar archives. | ||
305 | |||
306 | config UNCOMPRESS | ||
307 | bool "uncompress" | ||
308 | default n | ||
309 | help | ||
310 | uncompress is used to decompress archives created by compress. | ||
311 | Not much used anymore, replaced by gzip/gunzip. | ||
312 | |||
313 | config UNLZMA | ||
314 | bool "unlzma" | ||
315 | default y | ||
316 | help | ||
317 | unlzma is a compression utility using the Lempel-Ziv-Markov chain | ||
318 | compression algorithm, and range coding. Compression | ||
319 | is generally considerably better than that achieved by the bzip2 | ||
320 | compressors. | ||
321 | |||
322 | The BusyBox unlzma applet is limited to de-compression only. | ||
323 | On an x86 system, this applet adds about 4K. | ||
324 | |||
325 | Unless you have a specific application which requires unlzma, you | ||
326 | should probably say N here. | ||
327 | |||
328 | config FEATURE_LZMA_FAST | ||
329 | bool "Optimize unlzma for speed" | ||
330 | default y | ||
331 | depends on UNLZMA | ||
332 | help | ||
333 | This option reduces decompression time by about 25% at the cost of | ||
334 | a 1K bigger binary. | ||
335 | |||
336 | config LZMA | ||
337 | bool "Provide lzma alias which supports only unpacking" | ||
338 | default y | ||
339 | depends on UNLZMA | ||
340 | help | ||
341 | Enable this option if you want commands like "lzma -d" to work. | ||
342 | IOW: you'll get lzma applet, but it will always require -d option. | ||
343 | |||
344 | config UNXZ | ||
345 | bool "unxz" | ||
346 | default y | ||
347 | help | ||
348 | unxz is a unlzma successor. | ||
349 | |||
350 | config XZ | ||
351 | bool "Provide xz alias which supports only unpacking" | ||
352 | default y | ||
353 | depends on UNXZ | ||
354 | help | ||
355 | Enable this option if you want commands like "xz -d" to work. | ||
356 | IOW: you'll get xz applet, but it will always require -d option. | ||
357 | |||
358 | config UNZIP | ||
359 | bool "unzip" | ||
360 | default y | ||
361 | help | ||
362 | unzip will list or extract files from a ZIP archive, | ||
363 | commonly found on DOS/WIN systems. The default behavior | ||
364 | (with no options) is to extract the archive into the | ||
365 | current directory. Use the `-d' option to extract to a | ||
366 | directory of your choice. | ||
367 | |||
368 | endmenu | ||