Re: Usage of strncpy in the kernel

[Mouse <mouse%Rodents-Montreal.ORG@localhost>]

>> It also fills the rest, if any, of the destination space with more
>> NULs.  (This can be useful to, for example, prevent leaking kernel
>> stack trash to userland.)
> That's what strncpy() does over and above what strlcpy() does.

*blush*  As if we needed more evidence that the issue confuses people!

> Your idea about a wrapper to do the termination is interesting, but
> it's not one defined by any existing standard, and as such in some
> sense it actually hides the intention too much.

No more so than various other NetBSD-specific idioms in the kernel.
(As a personal example, I find the <sys/queue.h> macros a substantial
impediment to understanding code - while admittedly I don't know
whether they are shared with other OS projects, in my limited
experience they are NetBSD-specific.)

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