DragonFlyBSD

usr.sbin/mfiutil/mfi_foreign.c:189]: (error) Buffer is accessed out of bounds: prefix

Source code is

sprintf(prefix, "Foreign configuration preview %d", cfgidx);

but

char prefix[26];

I count at least 32 chars written by sprintf into prefix.
Suggest increase size of prefix.

I don't know which compiler this code is compiled by, but I
do know that recent version of gcc have a preprocessor
macro called _FORTIFY_SOURCE=2 which should detect this
kind of problem.