#------------------------------------------------------------------------------# compress:  file(1) magic for pure-compression formats (no archives)## compress, gzip, pack, compact, huf, squeeze, crunch, freeze, yabba, etc.## Formats for various forms of compressed data# Formats for "compress" proper have been moved into "compress.c",# because it tries to uncompress it to figure out what's inside.# standard unix compress0	string		\037\235	compress'd data>2	byte&0x80	>0		block compressed>2	byte&0x1f	x		%d bits# gzip (GNU zip, not to be confused with Info-ZIP or PKWARE zip archiver)#   Edited by Chris Chittleborough <cchittleborough@yahoo.com.au>, March 2002#	* Original filename is only at offset 10 if "extra field" absent#	* Produce shorter output - notably, only report compression methods#	  other than 8 ("deflate", the only method defined in RFC 1952).0       string          \037\213        gzip compressed data>2	byte		<8		\b, reserved method>2	byte		>8		\b, unknown method>3	byte		&0x01		\b, ASCII>3	byte		&0x02		\b, has CRC>3	byte		&0x04		\b, extra field>3	byte&0xC	=0x08>>10	string		x		\b, was "%s">3	byte		&0x10		\b, has comment>9	byte		=0x00		\b, from FAT filesystem (MS-DOS, OS/2, NT)>9	byte		=0x01		\b, from Amiga>9	byte		=0x02		\b, from VMS>9	byte		=0x03		\b, from Unix>9	byte		=0x04		\b, from VM/CMS>9	byte		=0x05		\b, from Atari>9	byte		=0x06		\b, from HPFS filesystem (OS/2, NT)>9	byte		=0x07		\b, from MacOS>9	byte		=0x08		\b, from Z-System>9	byte		=0x09		\b, from CP/M>9	byte		=0x0A		\b, from TOPS/20>9	byte		=0x0B		\b, from NTFS filesystem (NT)>9	byte		=0x0C		\b, from QDOS>9	byte		=0x0D		\b, from Acorn RISCOS>3	byte		&0x10		\b, comment>3	byte		&0x20		\b, encrypted>4	ledate		>0		\b, last modified: %s>8	byte		2		\b, max compression>8	byte		4		\b, max speed# packed data, Huffman (minimum redundancy) codes on a byte-by-byte basis0	string		\037\036	packed data>2	belong		>1		\b, %d characters originally>2	belong		=1		\b, %d character originally## This magic number is byte-order-independent.0	short		0x1f1f		old packed data# XXX - why *two* entries for "compacted data", one of which is# byte-order independent, and one of which is byte-order dependent?#0	short		0x1fff		compacted data# This string is valid for SunOS (BE) and a matching "short" is listed# in the Ultrix (LE) magic file.0	string		\377\037	compacted data0	short		0145405		huf output# bzip20	string		BZh		bzip2 compressed data>3	byte		>47		\b, block size = %c00k# squeeze and crunch# Michael Haardt <michael@cantor.informatik.rwth-aachen.de>0	beshort		0x76FF		squeezed data,>4	string		x		original name %s0	beshort		0x76FE		crunched data,>2	string		x		original name %s0	beshort		0x76FD		LZH compressed data,>2	string		x		original name %s# Freeze0	string		\037\237	frozen file 2.10	string		\037\236	frozen file 1.0 (or gzip 0.5)# SCO compress -H (LZH)0	string		\037\240	SCO compress -H (LZH) data# European GSM 06.10 is a provisional standard for full-rate speech# transcoding, prI-ETS 300 036, which uses RPE/LTP (residual pulse# excitation/long term prediction) coding at 13 kbit/s.## There's only a magic nibble (4 bits); that nibble repeats every 33# bytes.  This isn't suited for use, but maybe we can use it someday.## This will cause very short GSM files to be declared as data and# mismatches to be declared as data too!#0	byte&0xF0	0xd0		data#>33	byte&0xF0	0xd0#>66	byte&0xF0	0xd0#>99	byte&0xF0	0xd0#>132	byte&0xF0	0xd0		GSM 06.10 compressed audio# bzip	a block-sorting file compressor#	by Julian Seward <sewardj@cs.man.ac.uk> and others#0	string		BZ		bzip compressed data>2	byte		x		\b, version: %c>3	string		=1		\b, compression block size 100k>3	string		=2		\b, compression block size 200k>3	string		=3		\b, compression block size 300k>3	string		=4		\b, compression block size 400k>3	string		=5		\b, compression block size 500k>3	string		=6		\b, compression block size 600k>3	string		=7		\b, compression block size 700k>3	string		=8		\b, compression block size 800k>3	string		=9		\b, compression block size 900k# lzop from <markus.oberhumer@jk.uni-linz.ac.at>0	string		\x89\x4c\x5a\x4f\x00\x0d\x0a\x1a\x0a	lzop compressed data>9	beshort		<0x0940>>9	byte&0xf0	=0x00		- version 0.>>9	beshort&0x0fff	x		\b%03x,>>13	byte		1		LZO1X-1,>>13	byte		2		LZO1X-1(15),>>13	byte		3		LZO1X-999,## >>22	bedate		>0		last modified: %s,>>14	byte		=0x00		os: MS-DOS>>14	byte		=0x01		os: Amiga>>14	byte		=0x02		os: VMS>>14	byte		=0x03		os: Unix>>14	byte		=0x05		os: Atari>>14	byte		=0x06		os: OS/2>>14	byte		=0x07		os: MacOS>>14	byte		=0x0A		os: Tops/20>>14	byte		=0x0B		os: WinNT>>14	byte		=0x0E		os: Win32>9	beshort		>0x0939>>9	byte&0xf0	=0x00		- version 0.>>9	byte&0xf0	=0x10		- version 1.>>9	byte&0xf0	=0x20		- version 2.>>9	beshort&0x0fff	x		\b%03x,>>15	byte		1		LZO1X-1,>>15	byte		2		LZO1X-1(15),>>15	byte		3		LZO1X-999,## >>25	bedate		>0		last modified: %s,>>17	byte		=0x00		os: MS-DOS>>17	byte		=0x01		os: Amiga>>17	byte		=0x02		os: VMS>>17	byte		=0x03		os: Unix>>17	byte		=0x05		os: Atari>>17	byte		=0x06		os: OS/2>>17	byte		=0x07		os: MacOS>>17	byte		=0x0A		os: Tops/20>>17	byte		=0x0B		os: WinNT>>17	byte		=0x0E		os: Win32# 4.3BSD-Quasijarus Strong Compression# http://minnie.tuhs.org/Quasijarus/compress.html0	string		\037\241	Quasijarus strong compressed data# From: Cory Dikkers <cdikkers@swbell.net>0	string		XPKF		Amiga xpkf.library compressed data0	string		PP11		Power Packer 1.1 compressed data0	string		PP20		Power Packer 2.0 compressed data,>4	belong		0x09090909	fast compression>4	belong		0x090A0A0A	mediocre compression>4	belong		0x090A0B0B	good compression>4	belong		0x090A0C0C	very good compression>4	belong		0x090A0C0D	best compression# 7-zip archiver, from Thomas Klausner (wiz@danbala.tuwien.ac.at)# http://www.7-zip.org or DOC/7zFormat.txt #0	string		7z\274\257\047\034	7-zip archive data,>6	byte		x			version %d>7	byte		x			\b.%d# AFX compressed files (Wolfram Kleff)2	string		-afx-		AFX compressed file data# Supplementary magic data for the file(1) command to support# rzip(1).  The format is described in magic(5).## Copyright (C) 2003 by Andrew Tridgell.  You may do whatever you want with# this file.#0	string		RZIP		rzip compressed data>4	byte		x		- version %d>5	byte		x		\b.%d>6	belong		x		(%d bytes)