Subject: Re: [PATCH net-next] tcp: Return error instead of partial read for saved syn headers

From: Rick Jones <[email-masked]>
Date: Mon, 18 May 2015 11:41:40 -0700

On 05/18/2015 11:35 AM, Eric B Munson wrote:
> Currently the getsockopt() requesting the cached contents of the syn
> packet headers will fail silently if the caller uses a buffer that is
> too small to contain the requested data.  Rather than fail silently and
> discard the headers, getsockopt() should return an error and report the
> required size to hold the data.

Is there any chapter and verse on whether a "failed" getsockopt() may 
alter the items passed to it?

rick jones