DragonFlyBSD/src 641ead6include string.h, lib/libc/string timingsafe_bcmp.3 timingsafe_memcmp.c

libc/string: Add timing_safe functions from OpenBSD.

Good and small functions for crypto retlated things.
Add manpage and set __pure attributes.

Taken-from: OpenBSD
DeltaFile
+92-0lib/libc/string/timingsafe_bcmp.3
+46-0lib/libc/string/timingsafe_memcmp.c
+29-0lib/libc/string/timingsafe_bcmp.c
+7-5lib/libc/string/Makefile.inc
+2-0include/string.h
+2-0lib/libc/string/Symbol.map
+178-56 files

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