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opdis

Tool name: opdis
Rating: 0.0 (0 votes)
Author: mkfs                        
Website: http://community.thoughtgang.org/content/opdis
Current version: 1.0.1
Last updated: April 19, 2010
Direct D/L link: http://github.com/downloads/mkfs/mkfs.github.com/opdis-1.0.1.tar.gz
License type: GPL
Description: Opdis is a wrapper for the libopcodes disassembler library distributed as part of GNU binutils. It extends the libopcodes library by offering linear and control-flow disassembly algorithms, instruction and operand objects that are suitable for analysis, and a command-line utility to perform disassembly on arbitrary locations in a file.

The Opdis project consists of the libopdis library and the opdis command-line utility.
Related URLs:
Opdis man page:
http://community.thoughtgang.org/content/opdis/doc/opdis.1.html
Libopdis API documentation:
http://community.thoughtgang.org/content/opdis/doc/api/index.html
FAQ:
http://community.thoughtgang.org/content/opdis/doc/api/faq.html
Tutorials:
http://community.thoughtgang.org/content/opdis/doc/api/tutorials.html


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opdis cli utility

The most interesting component of the Opdis project is libopdis, a library that wraps libopcodes and generally makes it usable.

The opdis command line utility is not a full-featured disassembler; it is only used to disassemble bytes at a specific location in the file, or passed in as a hex string.

Examples (from the manpage):

linear disassembly of 1024 bytes starting at offset 0x100:

opdis -l :0x100+1024 a.out

control-flow disassembly starting at offset 0x200:

opdis -s intel -c :0x200 a.out

disassemble some shellcode bytes:

opdis -b '31 c0 bb 08 84 04 08 53 89 e1 31 d2 b0 0b cd 80 00 00'

Ruby gem

There is a gem for Opdis now on Rubyforge:

http://rubyforge.org/projects/opdis/




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