strncpy code security issue

[KaisEbraheem]

I am using Mantle in our iOS apps (Objective-C & Swift) for a many years now. Recently I have scanned the code using the SonarQube sonar-scanner tool which revealed several HIGH priority security issues on one particular file : MTLEXTRuntimeExtensions.m, all issues are related to the use of strncpy C-function. Can you please update the code to address this security issue in MTLEXTRuntimeExtensions.m.
One possible alternative is strlcpy.c (although not part of the standard C-library, it's available on Apple macOS since 2011).
See: https://www.usenix.org/legacy/events/usenix99/full_papers/millert/millert.pdf

[Robb Böhnke]

Thanks for flagging the issue 💖

That said, it's been a while since I've written C, what's the security issue being flagged by the tool and how does strlcpy alleviate it?

Happy to look at any PR to the effect.

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