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[lwip-devel] [bug #52836] altcp_write error because of invalid sndbuf av

From: Simon Goldschmidt
Subject: [lwip-devel] [bug #52836] altcp_write error because of invalid sndbuf available returned
Date: Mon, 8 Jan 2018 15:47:32 -0500 (EST)
User-agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Update of bug #52836 (project lwip):

                  Status:                    None => In Progress            
             Assigned to:                    None => goldsimon              


Follow-up Comment #1:

And again, I can't apply this patch to my sources :-(

The idea is good, but:
- size_t ssl_added = 5+8+16+3+16;": WTF? These should be constants! Ideally
pointing to defines from mbedtls, but at least make them literals so anyone
has a chance to see where these values come from (and if they are correct or
stay correct in the future)
- "The last '+3+16' is for alignment & security.": alignment also has
controlling defines. I assume +3 means 4-byte-alignment. What does 16 stand

Don't get me wrong: we do need this to make sendbuf() work as expected. It's
just not ready yet.


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