Re: fd passing: size for buffer and msg

Re: fd passing: size for buffer and msg_controllen

This is a discussion on Re: fd passing: size for buffer and msg_controllen within the lucky.openbsd.tech forums, part of the OpenBSD category; --> On Thu, Jun 30, 2005, Todd C. Miller wrote: > So, the size of the buffer should be calculated ...

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Re: fd passing: size for buffer and msg_controllen

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02-22-2008, 12:40 PM

Claus Assmann

Posts: n/a

Re: fd passing: size for buffer and msg_controllen

On Thu, Jun 30, 2005, Todd C. Miller wrote:

> So, the size of the buffer should be calculated via the CMSG_SPACE,
> but for msg_controllen you need to use CMSG_LEN. Not using CMSG_LEN
> was the bug Wietse fixed.

Thanks for the explanation! This means the code I'm using (in
sendmail X) is correct; I was just a bit confused about Wietse's
other change and as my Ultra 60 currently runs only Solaris 10
(it has only one disk) I can't test this.

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