diff options
Diffstat (limited to 'archival/bbunzip.c')
| -rw-r--r-- | archival/bbunzip.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/archival/bbunzip.c b/archival/bbunzip.c index eb6f114ad..b3fb90f31 100644 --- a/archival/bbunzip.c +++ b/archival/bbunzip.c @@ -215,6 +215,13 @@ char* FAST_FUNC make_new_name_generic(char *filename, const char *expected_ext) //usage: "\n -c Write to stdout" //usage: "\n -f Overwrite" +//config:config UNCOMPRESS +//config: bool "uncompress" +//config: default n +//config: help +//config: uncompress is used to decompress archives created by compress. +//config: Not much used anymore, replaced by gzip/gunzip. + //applet:IF_UNCOMPRESS(APPLET(uncompress, BB_DIR_BIN, BB_SUID_DROP)) //kbuild:lib-$(CONFIG_UNCOMPRESS) += bbunzip.o #if ENABLE_UNCOMPRESS @@ -278,6 +285,14 @@ int uncompress_main(int argc UNUSED_PARAM, char **argv) //usage:#define zcat_full_usage "\n\n" //usage: "Decompress to stdout" +//config:config GUNZIP +//config: bool "gunzip" +//config: default y +//config: help +//config: gunzip is used to decompress archives created by gzip. +//config: You can use the `-t' option to test the integrity of +//config: an archive, without decompressing it. + //applet:IF_GUNZIP(APPLET(gunzip, BB_DIR_BIN, BB_SUID_DROP)) //applet:IF_GUNZIP(APPLET_ODDNAME(zcat, gunzip, BB_DIR_BIN, BB_SUID_DROP, zcat)) //kbuild:lib-$(CONFIG_GZIP) += bbunzip.o @@ -361,6 +376,19 @@ int gunzip_main(int argc UNUSED_PARAM, char **argv) //usage:#define bzcat_full_usage "\n\n" //usage: "Decompress to stdout" +//config:config BUNZIP2 +//config: bool "bunzip2" +//config: default y +//config: help +//config: bunzip2 is a compression utility using the Burrows-Wheeler block +//config: sorting text compression algorithm, and Huffman coding. Compression +//config: is generally considerably better than that achieved by more +//config: conventional LZ77/LZ78-based compressors, and approaches the +//config: performance of the PPM family of statistical compressors. +//config: +//config: Unless you have a specific application which requires bunzip2, you +//config: should probably say N here. + //applet:IF_BUNZIP2(APPLET(bunzip2, BB_DIR_USR_BIN, BB_SUID_DROP)) //applet:IF_BUNZIP2(APPLET_ODDNAME(bzcat, bunzip2, BB_DIR_USR_BIN, BB_SUID_DROP, bzcat)) //kbuild:lib-$(CONFIG_BZIP2) += bbunzip.o @@ -432,6 +460,34 @@ int bunzip2_main(int argc UNUSED_PARAM, char **argv) //usage:#define xzcat_full_usage "\n\n" //usage: "Decompress to stdout" +//config:config UNLZMA +//config: bool "unlzma" +//config: default y +//config: help +//config: unlzma is a compression utility using the Lempel-Ziv-Markov chain +//config: compression algorithm, and range coding. Compression +//config: is generally considerably better than that achieved by the bzip2 +//config: compressors. +//config: +//config: The BusyBox unlzma applet is limited to decompression only. +//config: On an x86 system, this applet adds about 4K. +//config: +//config:config FEATURE_LZMA_FAST +//config: bool "Optimize unlzma for speed" +//config: default n +//config: depends on UNLZMA +//config: help +//config: This option reduces decompression time by about 25% at the cost of +//config: a 1K bigger binary. +//config: +//config:config LZMA +//config: bool "Provide lzma alias which supports only unpacking" +//config: default y +//config: depends on UNLZMA +//config: help +//config: Enable this option if you want commands like "lzma -d" to work. +//config: IOW: you'll get lzma applet, but it will always require -d option. + //applet:IF_UNLZMA(APPLET(unlzma, BB_DIR_USR_BIN, BB_SUID_DROP)) //applet:IF_UNLZMA(APPLET_ODDNAME(lzcat, unlzma, BB_DIR_USR_BIN, BB_SUID_DROP, lzcat)) //applet:IF_LZMA(APPLET_ODDNAME(lzma, unlzma, BB_DIR_USR_BIN, BB_SUID_DROP, lzma)) @@ -461,6 +517,20 @@ int unlzma_main(int argc UNUSED_PARAM, char **argv) #endif +//config:config UNXZ +//config: bool "unxz" +//config: default y +//config: help +//config: unxz is a unlzma successor. +//config: +//config:config XZ +//config: bool "Provide xz alias which supports only unpacking" +//config: default y +//config: depends on UNXZ +//config: help +//config: Enable this option if you want commands like "xz -d" to work. +//config: IOW: you'll get xz applet, but it will always require -d option. + //applet:IF_UNXZ(APPLET(unxz, BB_DIR_USR_BIN, BB_SUID_DROP)) //applet:IF_UNXZ(APPLET_ODDNAME(xzcat, unxz, BB_DIR_USR_BIN, BB_SUID_DROP, xzcat)) //applet:IF_XZ(APPLET_ODDNAME(xz, unxz, BB_DIR_USR_BIN, BB_SUID_DROP, xz)) |