xref: /freebsd/contrib/file/magic/Magdir/vms (revision f81cdf24ba5436367377f7c8e8f51f6df2a75ca7)
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2#------------------------------------------------------------------------------
3# $File: vms,v 1.10 2017/03/17 21:35:28 christos Exp $
4# vms:  file(1) magic for VMS executables (experimental)
5#
6# VMS .exe formats, both VAX and AXP (Greg Roelofs, newt@uchicago.edu)
7
8# GRR 950122:  I'm just guessing on these, based on inspection of the headers
9# of three executables each for Alpha and VAX architectures.  The VAX files
10# all had headers similar to this:
11#
12#   00000  b0 00 30 00 44 00 60 00  00 00 00 00 30 32 30 35  ..0.D.`.....0205
13#   00010  01 01 00 00 ff ff ff ff  ff ff ff ff 00 00 00 00  ................
14#
150	string	\xb0\0\x30\0	VMS VAX executable
16>44032	string	PK\003\004	\b, Info-ZIP SFX archive v5.12 w/decryption
17#
18# The AXP files all looked like this, except that the byte at offset 0x22
19# was 06 in some of them and 07 in others:
20#
21#   00000  03 00 00 00 00 00 00 00  ec 02 00 00 10 01 00 00  ................
22#   00010  68 00 00 00 98 00 00 00  b8 00 00 00 00 00 00 00  h...............
23#   00020  00 00 07 00 00 00 00 00  00 00 00 00 00 00 00 00  ................
24#   00030  00 00 00 00 01 00 00 00  00 00 00 00 00 00 00 00  ................
25#   00040  00 00 00 00 ff ff ff ff  ff ff ff ff 02 00 00 00  ................
26#
27# GRR this test is still too general as it catches example adressen.dbt
280	belong	0x03000000
29>8	ubelong	0xec020000	VMS Alpha executable
30>>75264	string	PK\003\004	\b, Info-ZIP SFX archive v5.12 w/decryption
31