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


On 01-04-2016 10:51, Adhemerval Zanella wrote:
> 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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