1#------------------------------------------------------------------------------ 2# $File: zip,v 1.4 2020/03/03 13:46:52 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>>4 leshort x \b, made by 11>>4 use zipversion 12>>4 use ziphost 13>>6 leshort x \b, extract using at least 14>>6 use zipversion 15>>12 ledate x \b, last modified %s 16>>24 lelong >0 \b, uncompressed size %d 17>>10 leshort x \b, method= 18>>10 use zipcompression 19 20# URL: https://en.wikipedia.org/wiki/Zip_(file_format) 21# reference: https://pkware.cachefly.net/webdocs/APPNOTE/APPNOTE-6.3.6.TXT 22# Zip known compressions 230 name zipcompression 24>0 leshort 0 \bstore 25>0 leshort 1 \bShrinking 26>0 leshort 6 \bImploding 27>0 leshort 7 \bTokenizing 28>0 leshort 8 \bdeflate 29>0 leshort 9 \bdeflate64 30>0 leshort 10 \bLibrary imploding 31#>0 leshort 11 \bReserved by PKWARE 32>0 leshort 12 \bbzip2 33#>0 leshort 13 \bReserved by PKWARE 34>0 leshort 14 \blzma 35#>0 leshort 15 \bReserved by PKWARE 36>0 leshort 16 \bCMPSC Compression 37#>0 leshort 17 \bReserved by PKWARE 38>0 leshort 18 \bIBM TERSE 39>0 leshort 19 \bIBM LZ77 40# https://support.winzip.com/hc/en-us/articles/115012122828-Compression-method-used-for-this-file-is-94 41>0 leshort 94 \bMP3 42>0 leshort 95 \bxz 43>0 leshort 96 \bJpeg 44>0 leshort 97 \bWavPack 45>0 leshort 98 \bPPMd 46>0 leshort 99 \bAES Encrypted 47>0 default x 48>>0 leshort x \b[%#x] 49 50# Zip known versions 510 name zipversion 52# The lower byte indicates the ZIP version of this file. The value/10 indicates 53# the major version number, and the value mod 10 is the minor version number. 54>0 ubyte/10 x v%u 55>0 ubyte%10 x \b.%u 56# >0 leshort 0x09 v0.9 57# >0 leshort 0x0a v1.0 58# >0 leshort 0x0b v1.1 59# >0 leshort 0x14 v2.0 60# >0 leshort 0x15 v2.1 61# >0 leshort 0x19 v2.5 62# >0 leshort 0x1b v2.7 63# >0 leshort 0x2d v4.5 64# >0 leshort 0x2e v4.6 65# >0 leshort 0x32 v5.0 66# >0 leshort 0x33 v5.1 67# >0 leshort 0x34 v5.2 68# >0 leshort 0x3d v6.1 69# >0 leshort 0x3e v6.2 70# >0 leshort 0x3f v6.3 71# >0 default x 72# >>0 leshort x v?[%#x] 73 74# display compatible host system name of ZIP archive 750 name ziphost 76# The upper byte indicates the compatibility of the file attribute information. 77# If the file is compatible with MS-DOS (v 2.04g) then this value will be zero. 78#>1 ubyte 0 DOS 79>1 ubyte 1 Amiga 80>1 ubyte 2 OpenVMS 81>1 ubyte 3 UNIX 82>1 ubyte 4 VM/CMS 83>1 ubyte 6 OS/2 84>1 ubyte 7 Macintosh 85>1 ubyte 11 MVS 86>1 ubyte 13 Acorn Risc 87>1 ubyte 16 BeOS 88>1 ubyte 17 Tandem 89# 9 untested 90>1 ubyte 5 Atari ST 91>1 ubyte 8 Z-System 92>1 ubyte 9 CP/M 93>1 ubyte 10 Windows NTFS 94>1 ubyte 12 VSE 95>1 ubyte 14 VFAT 96>1 ubyte 15 alternate MVS 97>1 ubyte 18 OS/400 98>1 ubyte 19 OS X 99# unused 100#>1 ubyte >19 unused 0x%x 101 102# Zip End Of Central Directory record 103-22 string PK\005\006 104#>4 leshort >1 \b, %d disks 105#>6 leshort >1 \b, central directory disk %d 106#>8 leshort >1 \b, %d central directories on this disk 107#>10 leshort >1 \b, %d central directories 108#>12 lelong x \b, %d central directory bytes 109>(16.l) use zipcd 110>>20 pstring/l >0 \b, %s 111