linux-kernel - Re: strncpy optimalisation? (lib/string.c)

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Message-ID: <20061210214954.GG30197@vanheusden.com>
Date:	Sun, 10 Dec 2006 22:49:54 +0100
From:	Folkert van Heusden <folkert@...heusden.com>
To:	Mitchell Blank Jr <mitch@...oth.com>
Cc:	Willy Tarreau <w@....eu>, linux-kernel@...r.kernel.org
Subject: Re: strncpy optimalisation? (lib/string.c)

> > This one (tested in test-code seperate from kernel) works:
> No it doesn't!
> strncpy() guarantees that the entire destination buffer is written to.
> If you call
> 	strncpy(dest, "foo", 10000)
> then you MUST write to 10000 bytes of memory, or your strncpy() is buggy.
> Your patches basically turn strncpy() into strlcpy().  Don't do that.
> They're separate functions for a reason.

Yes I saw that, didn't read your e-mail before I read Willy's message.

Can you please also have a look at my strlcpy patch?

Folkert van Heusden

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