file/magdir/vms

   1
   2 #------------------------------------------------------------------------------
   3 # vms:  file(1) magic for VMS executables (experimental)
   4 #
   5 # VMS .exe formats, both VAX and AXP (Greg Roelofs, newt@uchicago.edu)
   6
   7 # GRR 950122:  I'm just guessing on these, based on inspection of the headers
   8 # of three executables each for Alpha and VAX architectures.  The VAX files
   9 # all had headers similar to this:
  10 #
  11 #   00000  b0 00 30 00 44 00 60 00  00 00 00 00 30 32 30 35  ..0.D.`.....0205
  12 #   00010  01 01 00 00 ff ff ff ff  ff ff ff ff 00 00 00 00  ................
  13 #
  14 0       string  \xb0\0\x30\0    VMS VAX executable
  15 >44032  string  PK\003\004      \b, Info-ZIP SFX archive v5.12 w/decryption
  16 #
  17 # The AXP files all looked like this, except that the byte at offset 0x22
  18 # was 06 in some of them and 07 in others:
  19 #
  20 #   00000  03 00 00 00 00 00 00 00  ec 02 00 00 10 01 00 00  ................
  21 #   00010  68 00 00 00 98 00 00 00  b8 00 00 00 00 00 00 00  h...............
  22 #   00020  00 00 07 00 00 00 00 00  00 00 00 00 00 00 00 00  ................
  23 #   00030  00 00 00 00 01 00 00 00  00 00 00 00 00 00 00 00  ................
  24 #   00040  00 00 00 00 ff ff ff ff  ff ff ff ff 02 00 00 00  ................
  25 #
  26 0       belong  0x03000000      VMS Alpha executable
  27 >75264  string  PK\003\004      \b, Info-ZIP SFX archive v5.12 w/decryption