"Fossies" - the Fresh Open Source Software Archive

Member "file-5.35/magic/Magdir/cafebabe" (1 Oct 2018, 2208 Bytes) of package /linux/misc/file-5.35.tar.gz:


As a special service "Fossies" has tried to format the requested text file into HTML format (style: standard) with prefixed line numbers. Alternatively you can here view or download the uninterpreted source code file. See also the latest Fossies "Diffs" side-by-side code changes report for "cafebabe": 5.34_vs_5.35.

    1 
    2 #------------------------------------------------------------------------------
    3 # $File: cafebabe,v 1.24 2018/10/01 23:33:15 christos Exp $
    4 # Cafe Babes unite!
    5 #
    6 # Since Java bytecode and Mach-O universal binaries have the same magic number,
    7 # the test must be performed in the same "magic" sequence to get both right.
    8 # The long at offset 4 in a Mach-O universal binary tells the number of
    9 # architectures; the short at offset 4 in a Java bytecode file is the JVM minor
   10 # version and the short at offset 6 is the JVM major version.  Since there are only
   11 # only 18 labeled Mach-O architectures at current, and the first released
   12 # Java class format was version 43.0, we can safely choose any number
   13 # between 18 and 39 to test the number of architectures against
   14 # (and use as a hack). Let's not use 18, because the Mach-O people
   15 # might add another one or two as time goes by...
   16 #
   17 ### JAVA START ###
   18 0	belong		0xcafebabe
   19 >4	belong		>30		compiled Java class data,
   20 !:mime	application/x-java-applet
   21 >>6	beshort		x	        version %d.
   22 >>4	beshort		x       	\b%d
   23 # Which is which?
   24 #>>4	belong		0x032d		(Java 1.0)
   25 #>>4	belong		0x032d		(Java 1.1)
   26 >>4	belong		0x002e		(Java 1.2)
   27 >>4	belong		0x002f		(Java 1.3)
   28 >>4	belong		0x0030		(Java 1.4)
   29 >>4	belong		0x0031		(Java 1.5)
   30 >>4	belong		0x0032		(Java 1.6)
   31 >>4	belong		0x0033		(Java 1.7)
   32 >>4	belong		0x0034		(Java 1.8)
   33 
   34 0	belong		0xcafed00d	JAR compressed with pack200,
   35 >5	byte		x		version %d.
   36 >4	byte		x		\b%d
   37 !:mime	application/x-java-pack200
   38 
   39 
   40 0	belong		0xcafed00d	JAR compressed with pack200,
   41 >5	byte		x		version %d.
   42 >4	byte		x		\b%d
   43 !:mime	application/x-java-pack200
   44 
   45 ### JAVA END ###
   46 ### MACH-O START ###
   47 
   48 0	name		mach-o		\b [
   49 >0	use		mach-o-cpu	\b
   50 >(8.L)	indirect	x		\b:
   51 >0	belong		x		\b]
   52 
   53 0	belong		0xcafebabe
   54 >4	belong		1		Mach-O universal binary with 1 architecture:
   55 !:mime application/x-mach-binary
   56 >>8	use		mach-o		\b
   57 >4	belong		>1
   58 >>4	belong		<20		Mach-O universal binary with %d architectures:
   59 !:mime application/x-mach-binary
   60 >>>8	use		mach-o		\b
   61 >>4	belong		>1
   62 >>>28	use		mach-o		\b
   63 >>4	belong		>2
   64 >>>48	use		mach-o		\b
   65 >>4	belong		>3
   66 >>>68	use		mach-o		\b
   67 >>4	belong		>4
   68 >>>88	use		mach-o		\b
   69 >>4	belong		>5
   70 >>>108	use		mach-o		\b
   71 
   72 ### MACH-O END ###