menu "Archival Utilities"
-config CONFIG_AR
+config FEATURE_SEAMLESS_LZMA
+ bool "Make tar, rpm, modprobe etc understand .lzma data"
+ default n
+ help
+ Make tar, rpm, modprobe etc understand .lzma data.
+
+config FEATURE_SEAMLESS_BZ2
+ bool "Make tar, rpm, modprobe etc understand .bz2 data"
+ default n
+ help
+ Make tar, rpm, modprobe etc understand .bz2 data.
+
+config FEATURE_SEAMLESS_GZ
+ bool "Make tar, rpm, modprobe etc understand .gz data"
+ default n
+ help
+ Make tar, rpm, modprobe etc understand .gz data.
+
+config FEATURE_SEAMLESS_Z
+ bool "Make tar and gunzip understand .Z data"
+ default n
+ help
+ Make tar and gunzip understand .Z data.
+
+config AR
bool "ar"
default n
help
- Please submit a patch to add help text for this item.
+ ar is an archival utility program used to create, modify, and
+ extract contents from archives. An archive is a single file holding
+ a collection of other files in a structure that makes it possible to
+ retrieve the original individual files (called archive members).
+ The original files' contents, mode (permissions), timestamp, owner,
+ and group are preserved in the archive, and can be restored on
+ extraction.
+
+ The stored filename is limited to 15 characters. (for more information
+ see long filename support).
+ ar has 60 bytes of overheads for every stored file.
+
+ This implementation of ar can extract archives, it cannot create or
+ modify them.
+ On an x86 system, the ar applet adds about 1K.
+
+ Unless you have a specific application which requires ar, you should
+ probably say N here.
+
+config FEATURE_AR_LONG_FILENAMES
+ bool "Support for long filenames (not needed for debs)"
+ default n
+ depends on AR
+ help
+ By default the ar format can only store the first 15 characters
+ of the filename, this option removes that limitation.
+ It supports the GNU ar long filename method which moves multiple long
+ filenames into a the data section of a new ar entry.
-config CONFIG_FEATURE_AR_LONG_FILENAMES
- bool " Enable support for long filenames (not need for debs)"
+config FEATURE_AR_CREATE
+ bool "Support archive creation"
default n
- depends on CONFIG_AR
+ depends on AR
help
- Please submit a patch to add help text for this item.
+ This enables archive creation (-c and -r) with busybox ar.
-config CONFIG_BUNZIP2
+config BUNZIP2
bool "bunzip2"
default n
help
- Please submit a patch to add help text for this item.
+ bunzip2 is a compression utility using the Burrows-Wheeler block
+ sorting text compression algorithm, and Huffman coding. Compression
+ is generally considerably better than that achieved by more
+ conventional LZ77/LZ78-based compressors, and approaches the
+ performance of the PPM family of statistical compressors.
+
+ Unless you have a specific application which requires bunzip2, you
+ should probably say N here.
+
+config BZIP2
+ bool "bzip2"
+ default n
+ help
+ bzip2 is a compression utility using the Burrows-Wheeler block
+ sorting text compression algorithm, and Huffman coding. Compression
+ is generally considerably better than that achieved by more
+ conventional LZ77/LZ78-based compressors, and approaches the
+ performance of the PPM family of statistical compressors.
+
+ Unless you have a specific application which requires bzip2, you
+ should probably say N here.
-config CONFIG_CPIO
+config CPIO
bool "cpio"
default n
help
- Please submit a patch to add help text for this item.
+ cpio is an archival utility program used to create, modify, and
+ extract contents from archives.
+ cpio has 110 bytes of overheads for every stored file.
-config CONFIG_DPKG
+ This implementation of cpio can extract cpio archives created in the
+ "newc" or "crc" format, it cannot create or modify them.
+
+ Unless you have a specific application which requires cpio, you
+ should probably say N here.
+
+config FEATURE_CPIO_O
+ bool "Support for archive creation"
+ default n
+ depends on CPIO
+ help
+ This implementation of cpio can create cpio archives in the "newc"
+ format only.
+
+config FEATURE_CPIO_P
+ bool "Support for passthrough mode"
+ default n
+ depends on FEATURE_CPIO_O
+ help
+ Passthrough mode. Rarely used.
+
+config DPKG
bool "dpkg"
default n
+ select FEATURE_SEAMLESS_GZ
help
- Please submit a patch to add help text for this item.
+ dpkg is a medium-level tool to install, build, remove and manage
+ Debian packages.
+
+ This implementation of dpkg has a number of limitations,
+ you should use the official dpkg if possible.
-config CONFIG_DPKG_DEB
+config DPKG_DEB
bool "dpkg_deb"
default n
+ select FEATURE_SEAMLESS_GZ
help
- Please submit a patch to add help text for this item.
+ dpkg-deb unpacks and provides information about Debian archives.
+
+ This implementation of dpkg-deb cannot pack archives.
+
+ Unless you have a specific application which requires dpkg-deb,
+ say N here.
-config CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY
- bool " extract only (-x)"
+config FEATURE_DPKG_DEB_EXTRACT_ONLY
+ bool "Extract only (-x)"
default n
- depends on CONFIG_DPKG_DEB
+ depends on DPKG_DEB
help
- Please submit a patch to add help text for this item.
+ This reduces dpkg-deb to the equivalent of
+ "ar -p <deb> data.tar.gz | tar -zx". However it saves space as none
+ of the extra dpkg-deb, ar or tar options are needed, they are linked
+ to internally.
-config CONFIG_FEATURE_DEB_TAR_GZ
- bool " gzip debian packages (normal)"
- default y if CONFIG_DPKG || CONFIG_DPKG_DEB
- depends on CONFIG_DPKG || CONFIG_DPKG_DEB
+config GUNZIP
+ bool "gunzip"
+ default n
help
- Please submit a patch to add help text for this item.
+ gunzip is used to decompress archives created by gzip.
+ You can use the `-t' option to test the integrity of
+ an archive, without decompressing it.
-config CONFIG_FEATURE_DEB_TAR_BZ2
- bool " bzip2 debian packages"
+config GZIP
+ bool "gzip"
default n
- depends on CONFIG_DPKG || CONFIG_DPKG_DEB
help
- Please submit a patch to add help text for this item.
+ gzip is used to compress files.
+ It's probably the most widely used UNIX compression program.
-config CONFIG_GUNZIP
- bool "gunzip"
+config FEATURE_GZIP_LONG_OPTIONS
+ bool "Enable long options"
default n
+ depends on GZIP && LONG_OPTS
help
- Please submit a patch to add help text for this item.
+ Enable use of long options, increases size by about 106 Bytes
-config CONFIG_FEATURE_GUNZIP_UNCOMPRESS
- bool " Uncompress support"
+config LZOP
+ bool "lzop"
default n
- depends on CONFIG_GUNZIP
help
- Please submit a patch to add help text for this item.
+ Lzop compression/decompresion.
-config CONFIG_GZIP
- bool "gzip"
+config LZOP_COMPR_HIGH
+ bool "lzop complession levels 7,8,9 (not very useful)"
default n
+ depends on LZOP
help
- Please submit a patch to add help text for this item.
+ High levels (7,8,9) of lzop compression. These levels
+ are actually slower than gzip at equivalent compression ratios
+ and take up 3.2K of code.
-config CONFIG_RPM2CPIO
+config RPM2CPIO
bool "rpm2cpio"
default n
help
- Please submit a patch to add help text for this item.
+ Converts an RPM file into a CPIO archive.
+
+config RPM
+ bool "rpm"
+ default n
+ help
+ Mini RPM applet - queries and extracts RPM packages.
-config CONFIG_TAR
+config TAR
bool "tar"
default n
help
- Please submit a patch to add help text for this item.
+ tar is an archiving program. It's commonly used with gzip to
+ create compressed archives. It's probably the most widely used
+ UNIX archive program.
-config CONFIG_FEATURE_TAR_CREATE
- bool " Enable archive creation"
+config FEATURE_TAR_CREATE
+ bool "Enable archive creation"
default y
- depends on CONFIG_TAR
+ depends on TAR
help
- Please submit a patch to add help text for this item.
+ If you enable this option you'll be able to create
+ tar archives using the `-c' option.
-config CONFIG_FEATURE_TAR_BZIP2
- bool " Enable -j option to handle .tar.bz2 files"
+config FEATURE_TAR_AUTODETECT
+ bool "Autodetect compressed tarballs"
default n
- depends on CONFIG_TAR
+ depends on TAR && (FEATURE_SEAMLESS_Z || FEATURE_SEAMLESS_GZ || FEATURE_SEAMLESS_BZ2 || FEATURE_SEAMLESS_LZMA)
help
- Please submit a patch to add help text for this item.
+ With this option tar can automatically detect compressed
+ tarballs. Currently it works only on files (not pipes etc).
-config CONFIG_FEATURE_TAR_EXCLUDE
- bool " Enable -X and --exclude options (exclude files)"
+config FEATURE_TAR_FROM
+ bool "Enable -X (exclude from) and -T (include from) options)"
default n
- depends on CONFIG_TAR
+ depends on TAR
help
- Please submit a patch to add help text for this item.
+ If you enable this option you'll be able to specify
+ a list of files to include or exclude from an archive.
-config CONFIG_FEATURE_TAR_GZIP
- bool " Enable -z option"
+config FEATURE_TAR_OLDGNU_COMPATIBILITY
+ bool "Support for old tar header format"
+ default N
+ depends on TAR || DPKG
+ help
+ This option is required to unpack archives created in
+ the old GNU format; help to kill this old format by
+ repacking your ancient archives with the new format.
+
+config FEATURE_TAR_OLDSUN_COMPATIBILITY
+ bool "Enable untarring of tarballs with checksums produced by buggy Sun tar"
+ default N
+ depends on TAR || DPKG
+ help
+ This option is required to unpack archives created by some old
+ version of Sun's tar (it was calculating checksum using signed
+ arithmetic). It is said to be fixed in newer Sun tar, but "old"
+ tarballs still exist.
+
+config FEATURE_TAR_GNU_EXTENSIONS
+ bool "Support for GNU tar extensions (long filenames)"
default y
- depends on CONFIG_TAR
+ depends on TAR || DPKG
help
- Please submit a patch to add help text for this item.
+ With this option busybox supports GNU long filenames and
+ linknames.
-config CONFIG_FEATURE_TAR_OLD_FORMAT
- bool " Enable support for old tar header format"
+config FEATURE_TAR_LONG_OPTIONS
+ bool "Enable long options"
default n
- depends on CONFIG_TAR
+ depends on TAR && LONG_OPTS
help
- Please submit a patch to add help text for this item.
+ Enable use of long options, increases size by about 400 Bytes
-config CONFIG_FEATURE_GNUTAR_LONG_FILENAME
- bool " Enable support for GNU long filenames"
- default y
- depends on CONFIG_TAR
+config FEATURE_TAR_UNAME_GNAME
+ bool "Enable use of user and group names"
+ default n
+ depends on TAR
help
- Please submit a patch to add help text for this item.
+ Enables use of user and group names in tar. This affects contents
+ listings (-t) and preserving permissions when unpacking (-p).
+ +200 bytes.
-config CONFIG_FEATURE_UNARCHIVE_TAPE
- bool " Enable tape drive support"
+config FEATURE_TAR_NOPRESERVE_TIME
+ bool "Enable -m (do not preserve time) option"
default n
- depends on CONFIG_TAR || CONFIG_CPIO
+ depends on TAR
help
- Please submit a patch to add help text for this item.
+ With this option busybox supports GNU tar -m
+ (do not preserve time) option.
-config CONFIG_UNCOMPRESS
+config FEATURE_TAR_SELINUX
+ bool "Support for extracting SELinux labels"
+ default n
+ depends on TAR && SELINUX
+ help
+ With this option busybox supports restoring SELinux labels
+ when extracting files from tar archives.
+
+config UNCOMPRESS
bool "uncompress"
default n
help
- Please submit a patch to add help text for this item.
+ uncompress is used to decompress archives created by compress.
+ Not much used anymore, replaced by gzip/gunzip.
+
+config UNLZMA
+ bool "unlzma"
+ default n
+ help
+ unlzma is a compression utility using the Lempel-Ziv-Markov chain
+ compression algorithm, and range coding. Compression
+ is generally considerably better than that achieved by the bzip2
+ compressors.
+
+ The BusyBox unlzma applet is limited to de-compression only.
+ On an x86 system, this applet adds about 4K.
+
+ Unless you have a specific application which requires unlzma, you
+ should probably say N here.
+
+config FEATURE_LZMA_FAST
+ bool "Optimize unlzma for speed"
+ default n
+ depends on UNLZMA
+ help
+ This option reduces decompression time by about 25% at the cost of
+ a 1K bigger binary.
-config CONFIG_UNZIP
+config UNZIP
bool "unzip"
default n
help
- Please submit a patch to add help text for this item.
+ unzip will list or extract files from a ZIP archive,
+ commonly found on DOS/WIN systems. The default behavior
+ (with no options) is to extract the archive into the
+ current directory. Use the `-d' option to extract to a
+ directory of your choice.
endmenu
projects / oweals / busybox.git / blobdiff