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Diffstat (limited to 'magic/Magdir/cafebabe')
| -rw-r--r-- | magic/Magdir/cafebabe | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/magic/Magdir/cafebabe b/magic/Magdir/cafebabe new file mode 100644 index 000000000000..b3206e71e49e --- /dev/null +++ b/magic/Magdir/cafebabe @@ -0,0 +1,63 @@ + +#------------------------------------------------------------------------------ +# $File: cafebabe,v 1.16 2014/04/30 21:41:02 christos Exp $ +# Cafe Babes unite! +# +# Since Java bytecode and Mach-O universal binaries have the same magic number, +# the test must be performed in the same "magic" sequence to get both right. +# The long at offset 4 in a Mach-O universal binary tells the number of +# architectures; the short at offset 4 in a Java bytecode file is the JVM minor +# version and the short at offset 6 is the JVM major version. Since there are only +# only 18 labeled Mach-O architectures at current, and the first released +# Java class format was version 43.0, we can safely choose any number +# between 18 and 39 to test the number of architectures against +# (and use as a hack). Let's not use 18, because the Mach-O people +# might add another one or two as time goes by... +# +### JAVA START ### +0 belong 0xcafebabe +>4 belong >30 compiled Java class data, +!:mime application/x-java-applet +>>6 beshort x version %d. +>>4 beshort x \b%d +# Which is which? +#>>4 belong 0x032d (Java 1.0) +#>>4 belong 0x032d (Java 1.1) +>>4 belong 0x002e (Java 1.2) +>>4 belong 0x002f (Java 1.3) +>>4 belong 0x0030 (Java 1.4) +>>4 belong 0x0031 (Java 1.5) +>>4 belong 0x0032 (Java 1.6) + +0 belong 0xcafed00d JAR compressed with pack200, +>5 byte x version %d. +>4 byte x \b%d +!:mime application/x-java-pack200 + + +0 belong 0xcafed00d JAR compressed with pack200, +>5 byte x version %d. +>4 byte x \b%d +!:mime application/x-java-pack200 + +### JAVA END ### +### MACH-O START ### + +0 name mach-o \b [ +>0 use mach-o-cpu \b +>&(8.L) indirect \b: +>0 belong x \b] + +0 belong 0xcafebabe +>4 belong 1 Mach-O universal binary with 1 architecture: +>>8 use mach-o \b +>4 belong >1 +>>4 belong <20 Mach-O universal binary with %d architectures: +>>>8 use mach-o \b +>>>28 use mach-o \b +>>4 belong >2 +>>>48 use mach-o \b +>>4 belong >3 +>>>68 use mach-o \b + +### MACH-O END ### |