diff options
Diffstat (limited to 'magic/Magdir/zip')
| -rw-r--r-- | magic/Magdir/zip | 85 |
1 files changed, 66 insertions, 19 deletions
diff --git a/magic/Magdir/zip b/magic/Magdir/zip index 565085a39099..cea7ceaac074 100644 --- a/magic/Magdir/zip +++ b/magic/Magdir/zip @@ -1,14 +1,15 @@ #------------------------------------------------------------------------------ -# $File: zip,v 1.3 2019/07/06 19:25:06 christos Exp $ +# $File: zip,v 1.4 2020/03/03 13:46:52 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 +# Zip Central Directory record 0 name zipcd >0 string PK\001\002 Zip archive data >>4 leshort x \b, made by >>4 use zipversion +>>4 use ziphost >>6 leshort x \b, extract using at least >>6 use zipversion >>12 ledate x \b, last modified %s @@ -16,13 +17,27 @@ >>10 leshort x \b, method= >>10 use zipcompression +# URL: https://en.wikipedia.org/wiki/Zip_(file_format) +# reference: https://pkware.cachefly.net/webdocs/APPNOTE/APPNOTE-6.3.6.TXT # Zip known compressions 0 name zipcompression >0 leshort 0 \bstore +>0 leshort 1 \bShrinking +>0 leshort 6 \bImploding +>0 leshort 7 \bTokenizing >0 leshort 8 \bdeflate >0 leshort 9 \bdeflate64 +>0 leshort 10 \bLibrary imploding +#>0 leshort 11 \bReserved by PKWARE >0 leshort 12 \bbzip2 +#>0 leshort 13 \bReserved by PKWARE >0 leshort 14 \blzma +#>0 leshort 15 \bReserved by PKWARE +>0 leshort 16 \bCMPSC Compression +#>0 leshort 17 \bReserved by PKWARE +>0 leshort 18 \bIBM TERSE +>0 leshort 19 \bIBM LZ77 +# https://support.winzip.com/hc/en-us/articles/115012122828-Compression-method-used-for-this-file-is-94 >0 leshort 94 \bMP3 >0 leshort 95 \bxz >0 leshort 96 \bJpeg @@ -34,23 +49,55 @@ # 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] +# The lower byte indicates the ZIP version of this file. The value/10 indicates +# the major version number, and the value mod 10 is the minor version number. +>0 ubyte/10 x v%u +>0 ubyte%10 x \b.%u +# >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] + +# display compatible host system name of ZIP archive +0 name ziphost +# The upper byte indicates the compatibility of the file attribute information. +# If the file is compatible with MS-DOS (v 2.04g) then this value will be zero. +#>1 ubyte 0 DOS +>1 ubyte 1 Amiga +>1 ubyte 2 OpenVMS +>1 ubyte 3 UNIX +>1 ubyte 4 VM/CMS +>1 ubyte 6 OS/2 +>1 ubyte 7 Macintosh +>1 ubyte 11 MVS +>1 ubyte 13 Acorn Risc +>1 ubyte 16 BeOS +>1 ubyte 17 Tandem +# 9 untested +>1 ubyte 5 Atari ST +>1 ubyte 8 Z-System +>1 ubyte 9 CP/M +>1 ubyte 10 Windows NTFS +>1 ubyte 12 VSE +>1 ubyte 14 VFAT +>1 ubyte 15 alternate MVS +>1 ubyte 18 OS/400 +>1 ubyte 19 OS X +# unused +#>1 ubyte >19 unused 0x%x # Zip End Of Central Directory record -22 string PK\005\006 |