[File] [PATCH] of Magdir/riff for Windows animated cursor *.ani

[Jörg Jenderek]

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Hello,
some days ago i handled some RIFF based files.
When i run file command version 5.39 on Windows animated cursors with
file name extension ani i get a correct output like:

3DGMOVE.ANI:    RIFF (little-endian) data, animated cursor
DINOSAUR.ANI:   RIFF (little-endian) data, animated cursor
eyepointer.ani: RIFF (little-endian) data, animated cursor
FLAMES16.ANI:   RIFF (little-endian) data, animated cursor
HGLASS.ANI:     RIFF (little-endian) data, animated cursor
REDSHARK.ANI:   RIFF (little-endian) data, animated cursor

All samples are at least general described by Magdir/riff with line
 0	string		RIFF		RIFF (little-endian) data
but with --extension option only ??? is displayed. Furthermore with
- -i option only generic application/octet-stream is shown.

Some information about such Windows animated cursors is found on file
formats archive team website. That is now expressed by comment line
like:
 # http://fileformats.archiveteam.org/wiki/Windows_Animated_Cursor
More file formation information can be got from AniTuner Online Help.
This is expressed by reference comment line like
 # Reference:	https://www.gdgsoft.com/anituner/help/aniformat.htm
According to documentation the second RIFF tag for Windows animated
cursors is ACON. That is expressed by line
 >8	string		ACON		\b, animated cursor
According to reposcope.com website show now afterwards a user defined
mime type and file name extension by lines like:
 !:mime	application/x-navi-animation
 !:ext	ani

According to AniTuner help often some bytes later the INAM tag
appears followed by length of title and title string. This is now
shown by lines like
 >>24	string		INAM
 >>>28	pstring/l	x		"%s"
Afterward comes IART tag followed by length of author and author
string. This is now shown by lines
 >>>(28.l+32)	ubelong	0x49415254
 >>>>&0	pstring/l	x		%s

After applying the above mentioned modifications by patch
file-5.39-riff-ani.diff then for some Windows animated cursor
more detailed information is shown like:

3DGMOVE.ANI:    RIFF (little-endian) data, animated cursor
		"3D gold move arrows"
		Dan Goldwater, (c) 1993
DINOSAUR.ANI:   RIFF (little-endian) data, animated cursor
		"Dinosaur ('Reginald')"
		Copyright (C) 1993 Microsoft Corporation
eyepointer.ani: RIFF (little-endian) data, animated cursor
		"Eye pointer"
		Dierk - anicursor.com
FLAMES16.ANI:   RIFF (little-endian) data, animated cursor
HGLASS.ANI:     RIFF (little-endian) data, animated cursor
		"Hour Glass"
REDSHARK.ANI:   RIFF (little-endian) data, animated cursor

I hope my diff file can be applied in future version of
file utility.

With best wishes
Jörg Jenderek
- --
Jörg Jenderek






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-------------- next part --------------
--- file-5.39/magic/Magdir/riff.old	2020-06-15 00:01:01 +0000
+++ file-5.39/magic/Magdir/riff	2020-07-10 23:06:19 +0000
@@ -268,3 +268,16 @@
 # Animated Cursor format
+# Update:	Joerg Jenderek
+# URL:		http://fileformats.archiveteam.org/wiki/Windows_Animated_Cursor
+# Reference:	https://www.gdgsoft.com/anituner/help/aniformat.htm
 >8	string		ACON		\b, animated cursor
+!:mime	application/x-navi-animation
+# http://extension.nirsoft.net/ani
+#!:mime	image/ani
+!:ext	ani
+# INAM tag followed by length of title
+>>24	string		INAM
+>>>28	pstring/l	x		"%s"
+# IART tag followed by length of author
+>>>(28.l+32)	ubelong	0x49415254
+>>>>&0	pstring/l	x		%s
 # SoundFont 2 <mpruett at sgi.com>
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