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Date: Mon, 14 Jan 2013 17:01:08 -0500
From: Rich Felker <dalias@...ifal.cx>
To: musl@...ts.openwall.com
Subject: Re: iproute2 and musl (netinet/tcp.h)

On Mon, Jan 14, 2013 at 10:34:02PM +0100, Szabolcs Nagy wrote:
> * Daniel Cegie?ka <daniel.cegielka@...il.com> [2013-01-14 21:35:16 +0100]:
> > (netinet/tcp.h) - iproute2/misc/ss.c tries to use netinet/tcp.h. Do we
> > need to improve netinet/tcp.h in musl?
> > 
> 
> i think we should provide the TCP_* socket options
> from linux/tcp.h and hide SOL_TCP under feature
> test macros as posix only reserves TCP_ for netinet/tcp.h

Yes, this seems right; I can't find any reference to SOL_TCP being
allowed or reserved. Actually, SOL_TCP seems to be nonstandard
nonsense. The correct macro to use seems to be IPPROTO_TCP. See POSIX:

    The <netinet/tcp.h> header shall define the following symbolic
    constant for use as a socket option at the IPPROTO_TCP level:

    TCP_NODELAY
        Avoid coalescing of small segments.

http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/netinet_tcp.h.html

Rich

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