Fix SIGSEGV upon pkcs11.open_session_no_callbac

[hansonchar]

#72

Signed-off-by: Hanson Char [email protected]

[hug-dev]

Hey @hansonchar!!

Thanks for the detailed bug report and the PR. As this file is automatically generated from bindgen, I guess that a long term solution would be to fix the code-generation side directly, so that it's fixed for everyone? I am afraid that we will overwrite your fix if we re-generate the code.

Is there any issue about that on the bindgen repo? Might be worth to discuss with them too. Also @joechrisellis added the libloading feature in bindgen so he might be able to give pointers!

[hansonchar]

Make sense. Thanks!

[hug-dev]

I'll let the others share their thoughts though! Maybe it does not hurt to include that temporary as long as the new bindings also contain it!

[ionut-arm]

As per my message in the issue - an approach that could help in the future with other problems as well could be to place those libloading calls from this PR in a separate method implemented in lib.rs, but allowing the user to decide which flags they want to pass down. Thoughts?

[hansonchar]

Great idea.