binder's Introduction

binder

A simple tool that can be used to compare binary files.

The following operators are supported:

Operator	Description
xor (^)	Returns a list of all bytes that differ between two files.
and (.)	Takes two diff lists and finds the intersect.
or (+)	Takes two diff lists and finds the union.
subtract (-)	Takes two diff lists and finds the set difference.

For example, the following command can be used to find the bytes that differ between three different binary files:

$ ./bin/binder { examples/0.txt ^ examples/1.txt } + { examples/1.txt ^ examples/2.txt }
         examples/0.txt examples/1.txt examples/2.txt
00000004             65             65             45 
0000000d             6e             4e             6e 
0000000e             6f             4f             6f 
0000000f             70             50             50 
00000011             72             72             52 
00000018             79             79             7a 
00000019             7a             7a             79

This command can be used to find only the bytes that differ both between the first and second, and the second and third:

$ ./bin/binder { examples/0.txt ^ examples/1.txt } . { examples/1.txt ^ examples/2.txt }
         examples/0.txt examples/1.txt examples/2.txt
0000000d             6e             4e             6e 
0000000e             6f             4f             6f

Operator precedance is currently not supported and brackets around compound expressions are required.

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