#------------------------------------------------------------------------------
# $File: xenix,v 1.11 2017/03/17 21:35:28 christos Exp $
# xenix: file(1) magic for Microsoft Xenix
#
# "Middle model" stuff, and "Xenix 8086 relocatable or 80286 small
# model" lifted from "magic.xenix", with comment "derived empirically;
# treat as folklore until proven"
#
# "small model", "large model", "huge model" stuff lifted from XXX
#
# XXX - "x.out" collides with PDP-11 archives
#
0 string core core file (Xenix)
# URL: http://www.polarhome.com/service/man/?qf=86rel&tf=2&of=Xenix
# Reference: http://www.azillionmonkeys.com/qed/Omfg.pdf
# Update: Joerg Jenderek
# recordtype~TranslatorHEADerRecord
0 byte 0x80
# GRR: line above is too general as it catches also Extensible storage engine DataBase
# skip examples like GENA.SND Switch.Snd by looking for record length maximal 1024-3
>1 uleshort <1022
# skip examples like GAME.PICTURE Strange.Pic by looking for positiv record length
>>1 uleshort >0
# skip examples like Xtable.Data FRACTAL.GEN SHR.VIEW by looking for positiv string length
>>>3 ubyte >0
# skip examples like OMBRE.6 with "UUUUUU" by looking for filename like "hello.c"
>>>>4 regex [a-zA-Z_/]{1,8}[.] 8086 relocatable (Microsoft)
#!:mime application/octet-stream
!:mime application/x-object
!:ext o/a
>>>>>3 pstring x \b, "%s"
# checksum
#>>>>>(3.b+4) ubyte x \b, checksum 0x%2.2x
0 leshort 0xff65 x.out
>2 string __.SYMDEF randomized
>0 byte x archive
0 leshort 0x206 Microsoft a.out
>8 leshort 1 Middle model
>0x1e leshort &0x10 overlay
>0x1e leshort &0x2 separate
>0x1e leshort &0x4 pure
>0x1e leshort &0x800 segmented
>0x1e leshort &0x400 standalone
>0x1e leshort &0x8 fixed-stack
>0x1c byte &0x80 byte-swapped
>0x1c byte &0x40 word-swapped
>0x10 lelong >0 not-stripped
>0x1e leshort ^0xc000 pre-SysV
>0x1e leshort &0x4000 V2.3
>0x1e leshort &0x8000 V3.0
>0x1c byte &0x4 86
>0x1c byte &0xb 186
>0x1c byte &0x9 286
>0x1c byte &0xa 386
>0x1f byte <0x040 small model
>0x1f byte =0x048 large model
>0x1f byte =0x049 huge model
>0x1e leshort &0x1 executable
>0x1e leshort ^0x1 object file
>0x1e leshort &0x40 Large Text
>0x1e leshort &0x20 Large Data
>0x1e leshort &0x120 Huge Objects Enabled
>0x10 lelong >0 not stripped
0 leshort 0x140 old Microsoft 8086 x.out
>0x3 byte &0x4 separate
>0x3 byte &0x2 pure
>0 byte &0x1 executable
>0 byte ^0x1 relocatable
>0x14 lelong >0 not stripped
0 lelong 0x206 b.out
>0x1e leshort &0x10 overlay
>0x1e leshort &0x2 separate
>0x1e leshort &0x4 pure
>0x1e leshort &0x800 segmented
>0x1e leshort &0x400 standalone
>0x1e leshort &0x1 executable
>0x1e leshort ^0x1 object file
>0x1e leshort &0x4000 V2.3
>0x1e leshort &0x8000 V3.0
>0x1c byte &0x4 86
>0x1c byte &0xb 186
>0x1c byte &0x9 286
>0x1c byte &0x29 286
>0x1c byte &0xa 386
>0x1e leshort &0x4 Large Text
>0x1e leshort &0x2 Large Data
>0x1e leshort &0x102 Huge Objects Enabled
0 leshort 0x580 XENIX 8086 relocatable or 80286 small model