Fix login timeout segmentation faults

rails-sqlserver / tiny_tds

TinyTDS - Simple and fast FreeTDS bindings for Ruby using DB-Library.

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Fix login timeout segmentation faults #497

Closed bvogelzang closed 3 years ago

bvogelzang commented 3 years ago

Summary

Fixes a bug introduced in #481. When a login timeout occurs, userdata has not been initialized so it is a null pointer. Updating the timeout error handling to detect this so no segmentation fault occurs. Added a test to ensure login timeouts are working as expected.