# See COPYING file in this directory for original libmagic copyright.
#------------------------------------------------------------------------------
# $File: compress,v 1.48 2011/12/07 18:39:43 christos Exp $
# 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 compress
0	string		\037\235	compress'd data
!:mime	application/x-compress
!:apple	LZIVZIVU

# 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
!:mime	application/x-gzip

# packed data, Huffman (minimum redundancy) codes on a byte-by-byte basis
0	string		\037\036	packed data
!:mime	application/octet-stream

#
# This magic number is byte-order-independent.
0	short		0x1f1f		old packed data
!:mime	application/octet-stream

# 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
!:mime	application/octet-stream
# This string is valid for SunOS (BE) and a matching "short" is listed
# in the Ultrix (LE) magic file.
0	string		\377\037	compacted data
!:mime	application/octet-stream
0	short		0145405		huf output
!:mime	application/octet-stream

# bzip2
0	string		BZh		bzip2 compressed data
!:mime	application/x-bzip2

# lzip
0	string		LZIP		lzip compressed data
!:mime application/x-lzip

# 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
!:mime	application/x-7z-compressed

# Type: LZMA
0	lelong&0xffffff	=0x5d
>12	leshort		=0xff			LZMA compressed data,
>>5	lequad		=0xffffffffffffffff	streamed
>>5	lequad		!0xffffffffffffffff	non-streamed, size %lld
!:mime	application/x-lzma

# http://tukaani.org/xz/xz-file-format.txt
0	ustring		\xFD7zXZ\x00		XZ compressed data
!:mime	application/x-xz

# https://github.com/ckolivas/lrzip/blob/master/doc/magic.header.txt
0	string		LRZI			LRZIP compressed data
>4	byte		x			- version %d
>5	byte		x			\b.%d
!:mime	application/x-lrzip