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sockaddr binary compatibility between kernel and user?

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sockaddr binary compatibility between kernel and user?

Subject: sockaddr binary compatibility between kernel and user?
From: email@hidden
Date: Sun, 14 Jan 2007 00:16:11 -0800

Are there any binary compatibility guarantees with the data structures
used with the socket KPIs and user space? The data structures I'm
specifically concerned about are sockaddr_in and sockaddr_in6. For
example, is it safe to send a sockaddr_in6 from user space to the
kernel? The case I'm worried about is if I have a 64-bit app running
on a 32-bit kernel or vice versa since 32-bit and 64-bit builds
sometimes layout structures differently.
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