1#------------------------------------------------------------------------------ 2# $File: zip,v 1.6 2021/02/05 22:55:36 christos Exp $ 3# zip: file(1) magic for zip files; this is not use 4# Note the version of magic in archive is currently stronger, this is 5# just an example until negative offsets are supported better 6 7# Zip Central Directory record 80 name zipcd 9>0 string PK\001\002 Zip archive data 10!:mime application/zip 11>>4 leshort x \b, made by 12>>4 use zipversion 13>>4 use ziphost 14>>6 leshort x \b, extract using at least 15>>6 use zipversion 16>>12 ledate x \b, last modified %s 17>>24 lelong >0 \b, uncompressed size %d 18>>10 leshort x \b, method= 19>>10 use zipcompression 20 21# URL: https://en.wikipedia.org/wiki/Zip_(file_format) 22# reference: https://pkware.cachefly.net/webdocs/casestudies/APPNOTE.TXT (Version: 6.3.9) 23# Zip known compressions 240 name zipcompression 25>0 leshort 0 \bstore 26>0 leshort 1 \bShrinking 27>0 leshort 6 \bImploding 28>0 leshort 7 \bTokenizing 29>0 leshort 8 \bdeflate 30>0 leshort 9 \bdeflate64 31>0 leshort 10 \bLibrary imploding 32#>0 leshort 11 \bReserved by PKWARE 33>0 leshort 12 \bbzip2 34#>0 leshort 13 \bReserved by PKWARE 35>0 leshort 14 \blzma 36#>0 leshort 15 \bReserved by PKWARE 37>0 leshort 16 \bCMPSC (IBM z/OS) 38#>0 leshort 17 \bReserved by PKWARE 39>0 leshort 18 \bIBM TERSE 40>0 leshort 19 \bIBM LZ77 (z/Architecture) 41>0 leshort 20 \bZstd (deprecated) 42>0 leshort 93 \bZstd 43>0 leshort 94 \bMP3 44>0 leshort 95 \bxz 45>0 leshort 96 \bJpeg 46>0 leshort 97 \bWavPack 47>0 leshort 98 \bPPMd 48>0 leshort 99 \bAES Encrypted 49>0 default x 50>>0 leshort x \b[%#x] 51 52# Zip known versions 530 name zipversion 54# The lower byte indicates the ZIP version of this file. The value/10 indicates 55# the major version number, and the value mod 10 is the minor version number. 56>0 ubyte/10 x v%u 57>0 ubyte%10 x \b.%u 58# >0 leshort 0x09 v0.9 59# >0 leshort 0x0a v1.0 60# >0 leshort 0x0b v1.1 61# >0 leshort 0x14 v2.0 62# >0 leshort 0x15 v2.1 63# >0 leshort 0x19 v2.5 64# >0 leshort 0x1b v2.7 65# >0 leshort 0x2d v4.5 66# >0 leshort 0x2e v4.6 67# >0 leshort 0x32 v5.0 68# >0 leshort 0x33 v5.1 69# >0 leshort 0x34 v5.2 70# >0 leshort 0x3d v6.1 71# >0 leshort 0x3e v6.2 72# >0 leshort 0x3f v6.3 73# >0 default x 74# >>0 leshort x v?[%#x] 75 76# display compatible host system name of ZIP archive 770 name ziphost 78# The upper byte indicates the compatibility of the file attribute information. 79# If the file is compatible with MS-DOS (v 2.04g) then this value will be zero. 80#>1 ubyte 0 DOS 81>1 ubyte 1 Amiga 82>1 ubyte 2 OpenVMS 83>1 ubyte 3 UNIX 84>1 ubyte 4 VM/CMS 85>1 ubyte 6 OS/2 86>1 ubyte 7 Macintosh 87>1 ubyte 11 MVS 88>1 ubyte 13 Acorn Risc 89>1 ubyte 16 BeOS 90>1 ubyte 17 Tandem 91# 9 untested 92>1 ubyte 5 Atari ST 93>1 ubyte 8 Z-System 94>1 ubyte 9 CP/M 95>1 ubyte 10 Windows NTFS 96>1 ubyte 12 VSE 97>1 ubyte 14 VFAT 98>1 ubyte 15 alternate MVS 99>1 ubyte 18 OS/400 100>1 ubyte 19 OS X 101# unused 102#>1 ubyte >19 unused 0x%x 103 104# Zip End Of Central Directory record 105-22 string PK\005\006 106#>4 leshort >1 \b, %d disks 107#>6 leshort >1 \b, central directory disk %d 108#>8 leshort >1 \b, %d central directories on this disk 109#>10 leshort >1 \b, %d central directories 110#>12 lelong x \b, %d central directory bytes 111>(16.l) use zipcd 112>>20 pstring/l >0 \b, %s 113