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Re: [PATCH v4 0/3] Fix {recv,send}{m}msg standard compliance (BZ#16919)


Joseph,

Besides the comment in first patch from the set do you have any more
upcoming comments or regards about the changes?

On 28-03-2016 11:33, Adhemerval Zanella wrote:
> 
>  1. Current sendmsg fix does not handle larger msg_control neither
>     pads the cmsghdr associated.  The problem with this approach
>     is to accomplish a complete fix it will require to allocate
>     a limited buffer, copying the incoming struct and zero pad.
>     Although it tend to work it also add some limitation of total
>     msg_control length.
>     The general usage for such facily is passing file descriptors
>     and permissions between processes over unix sockets so it might
>     be factible to use a large stack allocated buffer (1024, 2048
>     or large) and return ENOMEM for larger buffers.

This is the only remaining issue for bz16919 which this patch does
not address directly, but I am intend to send an upcoming patch to
get some discussion if the idea is the best approach.


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