basic darwin support for shellcrafter

[patryk4815]

Pwntools Pull Request

Added basic darwin support for shellcrafter

What is working on linux:

• shellcraft
• asm
• disasm

What is working on darwin:

• shellcraft
• asm (binutils needed)
• disasm (binutils needed)
• run_assembly
• run_shellcode

Testing

Pull Requests that introduce new code should try to add doctests for that code. See TESTING.md for more information.

Target Branch

Depending on what the PR is for, it needs to target a different branch.

You can always change the branch after you create the PR if it's against the wrong branch.

Branch	Type of PR
dev	New features, and enhancements
dev	Documentation fixes and new tests
stable	Bug fixes that affect the current stable branch
beta	Bug fixes that affect the current beta branch, but not stable
dev	Bug fixes for code that has never been released

Changelog

After creating your Pull Request, please add and push a commit that updates the changelog for the appropriate branch.
You can look at the existing changelog for examples of how to do this.

[Arusekk]

@patryk4815 What's the status on this?

[Arusekk]

Could you also rebase the commits before merging so that the auto-generated stuff goes into a separate commit?

[patryk4815]

@Arusekk i think it is ready

Simple code works:

from pwn import *

context.os = 'darwin'
context.arch = 'amd64'

f = tempfile.mktemp()
write(f, 'This is the flag\n')

shellcode = shellcraft.cat2(f) + shellcraft.exit(1)
intr = asm(shellcode)

print(shellcode)
print(intr)

print(disasm(intr))
print(run_shellcode(intr).recv(0x100))
print(run_assembly(shellcode).recv(0x100))