strncasecmp() and strnstr() in kext

Very wired that, the two functions are both used in the same kext of mine, but strncasecmp() is OK, while strnstr() will trigger below error when loading the kext:



(kernel) kxld[com.dolphin.kext.aliedr]: The following symbols are unresolved for this kext:

(kernel) kxld[com.dolphin.kext.aliedr]: _strnstr

(kernel) Can't load kext com.dolphin.kext.aliedr - link failed.


After checked, they are both declared in the same header file -- macOS 10.15 > Frameworks > Kernel > string.h


Any comments?

Replies

strnstr
is not part of any public KPI. And yeah, that is weird. You can file a bug about this if you like but, given our announced future direction with regards KEXTs, I wouldn’t get your hopes up.

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