From: Herbert Xu <herbert@gondor.apana.org.au>
To: Mimi Zohar <zohar@linux.vnet.ibm.com>
Cc: linux-crypto@vger.kernel.org
Subject: Re: crypto: return codes
Date: Sun, 10 Oct 2010 14:51:50 +0800 [thread overview]
Message-ID: <20101010065150.GA11552@gondor.apana.org.au> (raw)
In-Reply-To: <1286681683.2666.21.camel@localhost.localdomain>
On Sat, Oct 09, 2010 at 11:34:43PM -0400, Mimi Zohar wrote:
> On Sat, 2010-10-09 at 09:29 +0800, Herbert Xu wrote:
> > Mimi Zohar <zohar@linux.vnet.ibm.com> wrote:
> > > Hi,
> > >
> > > Looking at different examples of the same crypto call, it's unclear
> > > whether it only returns negative error values. Some examples only test
> > > for negative values, while others test for not 0. tcrypt.c does "if
> > > (ret)". Would appreciate some clarification.
> >
> > Unless the call can return positive values then it makes no
> > difference. Which particular call are you talking about?
> >
> > Cheers,
>
> Just to name a few: crypto_hash_init(), crypto_hash_update(),
> crypto_hash_final(). Also crypto_blkcipher_decrypt/encrypt(). Would be
> nice to know definitively that they return < 0 on error and 0 for
> success.
Yes it's zero or negative.
Cheers,
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
prev parent reply other threads:[~2010-10-10 6:51 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-05 20:04 crypto: return codes Mimi Zohar
2010-10-09 1:29 ` Herbert Xu
2010-10-10 3:34 ` Mimi Zohar
2010-10-10 6:51 ` Herbert Xu [this message]
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