Create ptrace.c

[l4wio]

No description provided.

[zachriggle]

This should be part of your other pull request. I'd recommend going through the steps at https://try.github.io to find out how to use Git to fork a repo, create a branch, submit a pull request, and modify the pull request in-progress.

[zachriggle]

Please consolidate this with your other pull requests, and delete this branch.

[zachriggle]

We've been informed that pwnable.kr does not want solutions for their challenges posted online. Please delete the commits from your branch with the following commands:

$ git clone https://github.com/manhluat93/pwntools-write-ups
$ cd pwntools-write-ups
$ git remote add upstream https://github.com/Gallopsled/pwntools-write-ups
$ git fetch --all
$ git checkout -t origin/patch-1
$ git reset --hard upstream/master
$ git push --force origin patch-1