dustbox-fuzzer

-WIP-

Generates and encodes instruction sequences, and then runs them in dustbox and a second target, comparing resulting registers and flags.

Used to verify instruction implementation correctness.

Currently the following code runners exists:

supersafe:

• Connects to an instance of the supersafe program running inside a VM.

vmrun:

• Uses the vmrun command line interface to execute programs inside a VMware Virtual Machine.
• Requires a password to be set in the guest VM in order to function.

dosbox-x:

• Uses the dosbox-x command line to execute programs inside a Dosbox-X environment.

TODO

• take prober.com.tpl exact path as arg

• dosbox-x: verify that DosboxX runner works vs original dosbox project

• mutate 1, 2 and 3 operand forms of instrs

• LATER: bochs runner

• LATER: qemu runner

• com: implement superdos - a DOS program that uses the COM serial interface, and recieves binary data, executes it and sends back STDOUT over the wire, including checksums and re-transmit for real hardware and to be run inside dos emulator to speed things up. make use of https://crates.io/crates/serialport https://en.wikibooks.org/wiki/Serial_Programming/DOS_Programming https://www.dosbox.com/wiki/Configuration:SerialPort

  • use winXP + djgpp to build dos .exe ?

  • "use unix to build DOS programs" also exists at http://www.delorie.com/djgpp/zip-picker.html

  • supersafe.exe dont run in win98. linked to missing export KERNEL32.DLL:AddVectoredExceptionHandler

  • could run serial DOS program in win98 bare bones / vm