zeek/magic/iff
Jon Siwek 037d582b0e FileAnalysis: add custom libmagic database.
- It's derived from the magic database of libmagic 5.14, but with most
  everything not related to mime types removed.

- The custom database is always used by default for mime detection, but
  the more verbose file type detection will fall back on the default
  libmagic installation's database.  The result is: mime type strings
  are now guaranteed to be consistent across platforms, but the verbose
  file type descriptions are not.

- The custom database gets installed in $prefix/share/bro/magic, and
  should even be extensible if files with new patterns are added inside
  the directory.

- The search path for the mime magic database can be controlled via
  BROMAGIC environment variable.

- Remove mime_desc field from ftp.log.

- Stop using the mime/file type canonifier with unit tests.

- libmagic >= 5.04 is now a requirement.
2013-04-12 11:58:19 -05:00

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# See COPYING file in this directory for original libmagic copyright.
#------------------------------------------------------------------------------
# $File: iff,v 1.12 2009/09/19 16:28:09 christos Exp $
# iff: file(1) magic for Interchange File Format (see also "audio" & "images")
#
# Daniel Quinlan (quinlan@yggdrasil.com) -- IFF was designed by Electronic
# Arts for file interchange. It has also been used by Apple, SGI, and
# especially Commodore-Amiga.
#
# IFF files begin with an 8 byte FORM header, followed by a 4 character
# FORM type, which is followed by the first chunk in the FORM.
0 string FORM IFF data
#>4 belong x \b, FORM is %d bytes long
# audio formats
>8 string AIFF \b, AIFF audio
!:mime audio/x-aiff
>8 string AIFC \b, AIFF-C compressed audio
!:mime audio/x-aiff
>8 string 8SVX \b, 8SVX 8-bit sampled sound voice
!:mime audio/x-aiff