linux-kernel - Re: [PATCH v2] lib: string.c: Added a funktion function strzcpy

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Message-Id: <20141015151511.ea81b39adcee0954518bf5f3@linux-foundation.org>
Date:	Wed, 15 Oct 2014 15:15:11 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
Cc:	Grant Likely <grant.likely@...aro.org>,
	Andi Kleen <ak@...ux.intel.com>,
	Dan Carpenter <dan.carpenter@...cle.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] lib: string.c:  Added a funktion function strzcpy

On Sun,  5 Oct 2014 15:06:17 +0200 Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se> wrote:

> Added a function strzcpy which works the same as strncpy,
> but guaranteed to produce the trailing null character.
> 
> There are many places in the code where strncpy used although it
> must be zero terminated, and switching to strlcpy is not an option
> because the string must nonetheless be fyld with zero characters.

As I mentioned last time, I think this patch would be better if it came
with follow-on patches which convert at least some of those callsites. 
As it stands, this function has no callers and hence it won't get
tested.  Plus those follow-on patches will demonstrate the value of
this patch and will provide example usages.
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