magic

创建一个符合iso-9660标准的iso文件系统

#
# Example magic file for mkhybrid
#
# The "message" for the offset MUST be 4 characters for the CREATOR
# and 4 characters for the TYPE - white space is optional between them.
# Any other characters on this line are ignored. Continuation lines (starting
# with '>') are also ignored i.e. only the initial offset lines are used.
#
# The continuation lines are given here, but they do not need to exist.

#
# James Pearson 20/5/98

# off	type		test		message

# GIF
0	string		GIF8		8BIM GIFf
>4	string		7a		\b, version 8%s,
>4	string		9a		\b, version 8%s,
>6	leshort		>0		%hd x
>8	leshort		>0		%hd,
#>10	byte		&0x80		color mapped,
#>10	byte&0x07	=0x00		2 colors
#>10	byte&0x07	=0x01		4 colors
#>10	byte&0x07	=0x02		8 colors
#>10	byte&0x07	=0x03		16 colors
#>10	byte&0x07	=0x04		32 colors
#>10	byte&0x07	=0x05		64 colors
#>10	byte&0x07	=0x06		128 colors
#>10	byte&0x07	=0x07		256 colors

# JPEG images
#
0	ubeshort		0xffd8		8BIM JPEG  image data

# StuffIt
#
0	string		SIT!		SIT!SIT!

# standard unix compress
0	string		\037\235	LZIV ZIVU
>2	byte&0x80	>0		block compressed
>2	byte&0x1f	x		%d bits

# gzip (GNU zip, not to be confused with Info-ZIP or PKWARE zip archiver)
0       string          \037\213        GNUz ZIVU gzip compressed data
>2      byte            <8              \b, reserved method,
>2      byte            8               \b, deflated,
>3	byte		&0x01		ASCII,
>3	byte		&0x02		continuation,
>3	byte		&0x04		extra field,
>3	byte		&0x08		original filename,
>3	byte		&0x10		comment,
>3	byte		&0x20		encrypted,
>4	ledate		x		last modified: %s,
>8	byte		2		max compression,
>8	byte		4		max speed,
>9	byte		=0x00		os: MS-DOS
>9	byte		=0x01		os: Amiga
>9	byte		=0x02		os: VMS
>9	byte		=0x03		os: Unix
>9	byte		=0x05		os: Atari
>9	byte		=0x06		os: OS/2
>9	byte		=0x07		os: MacOS
>9	byte		=0x0A		os: Tops/20
>9	byte		=0x0B		os: Win/32

# Postscript
0	string		%!		ASPSTEXT
>2	string		PS-Adobe-	conforming
>>11	string		>\0		at level %.3s
>>>15	string		EPS		- type %s
>>>15	string		Query		- type %s
>>>15	string		ExitServer	- type %s
# Some PCs have the annoying habit of adding a ^D as a document separator
0	string		\004%!		ASPS TEXT PostScript document text
>3	string		PS-Adobe-	conforming
>>12	string		>\0		at level %.3s
>>>16	string		EPS		- type %s
>>>16	string		Query		- type %s
>>>16	string		ExitServer	- type %s