exmagic

#------------------------------------------------------------------------------
# $File: zip,v 1.2 2019/04/09 18:34:15 christos Exp $
# zip:  file(1) magic for zip files; this is not use
# Note the version of magic in archive is currently stronger, this is
# just an example until negative offsets are supported better

# Zip Central Cirectory record
0	name		zipcd
>0	string		PK\001\002	Zip archive data
>>4	leshort		x		\b, made by
>>4	use		zipversion
>>6	leshort		x		\b, extract using at least
>>6	use		zipversion
>>12	ledate		x		\b, last modified %s
>>24	lelong		>0		\b, uncompressed size %d
>>10	leshort		x		\b, method=
>>10	use		zipcompression

# Zip known compressions
0	name		zipcompression
>0	leshort		0		\bstore
>0	leshort		8		\bdeflate
>0	leshort		9		\bdeflate64
>0	leshort		12		\bbzip2
>0	leshort		14		\blzma
>0	leshort		94		\bMP3
>0	leshort		95		\bxz
>0	leshort		96		\bJpeg
>0	leshort		97		\bWavPack
>0	leshort		98		\bPPMd
>0	leshort		99		\bAES Encrypted
>0	default		x
>>0	leshort		x		\b[%#x]

# Zip known versions
0	name		zipversion
>0	leshort		0x09		v0.9
>0	leshort		0x0a		v1.0
>0	leshort		0x0b		v1.1
>0	leshort		0x14		v2.0
>0	leshort		0x15		v2.1
>0	leshort		0x19		v2.5
>0	leshort		0x1b		v2.7
>0	leshort		0x2d		v4.5
>0	leshort		0x2e		v4.6
>0	leshort		0x32		v5.0
>0	leshort		0x33		v5.1
>0	leshort		0x34		v5.2
>0	leshort		0x3d		v6.1
>0	leshort		0x3e		v6.2
>0	leshort		0x3f		v6.3
>0	default		x
>>0	leshort		x		v?[%#x]

# Zip End Of Central Directory record
-22	string		PK\005\006
#>4	leshort		>1		\b, %d disks
#>6	leshort		>1		\b, central directory disk %d
#>8	leshort		>1		\b, %d central directories on this disk
#>10	leshort		>1		\b, %d central directories
#>12	lelong		x		\b, %d central directory bytes
>(16.l)	use		zipcd
>20	pstring/l	>0		\b, %s