Re: [PATCH] lib: string.c: Added a funktion function strzcpy

[Andi Kleen]

On Wed, Sep 24, 2014 at 10:52:06AM +0300, Dan Carpenter wrote:
> On Tue, Sep 23, 2014 at 06:17:53PM -0700, Andi Kleen wrote:
> > On Wed, Sep 24, 2014 at 12:13:36AM +0200, Rickard Strandqvist wrote:
> > > Added a function strzcpy which works the same as strncpy,
> > > but guaranteed to produce the trailing null character.
> > 
> > Do we really need the bizarre strncpy padding semantics for anything?
> > Why not just use strlcpy?
> 
> We do need the padding in many places to prevent information leaks.

Like where?

Usually explicit memset is far cleaner/safer.

-andi
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