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From: Kevin Ryde <user42@zip.com.au>
Cc: guile-devel@gnu.org
Subject: Re: Initial SCTP support for the upcoming 1.6.5 release
Date: Fri, 20 Aug 2004 11:13:32 +1000	[thread overview]
Message-ID: <87llgabohv.fsf@zip.com.au> (raw)
In-Reply-To: <60ADA546-F20E-11D8-A47A-000D932C78D8@lurchi.franken.de> (Michael Tuexen's message of "Thu, 19 Aug 2004 20:34:17 +0200")

Michael Tuexen <Michael.Tuexen@lurchi.franken.de> writes:
>
> The argument, to use a function like getprotobyname
> to perform a lookup in /etc/protocols, is not valid in my opinion.
> The reason is, that besides I have not seen that, that  the
> constants above are defined in /usr/include/netinet/in.h and
> are used.

I don't want to go against the advice of the GNU/Linux man page.  It's
pretty explicit.

> So if, a system (I do not know of any such system),
> uses a different number for TCP, this number will not only be in
> /etc/protocols, but also in /usr/include/netinet/in.h. A different
> story are port numbers. They can (and should) be looked up in
> /etc/services.
> There are no constants describing the port number for an echo server...

Well I guess both protocol and service numbers for standard stuff are
constants.  I don't know why one reads a file instead of just putting
numbers in a program.  Maybe it dates right back to a time when such
things were still in flux.  Or maybe the theory is to avoid numbers
hard coded in programs (though strings hard coded aren't much better
:-).


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  reply	other threads:[~2004-08-20  1:13 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-08-10 18:26 Initial SCTP support for the upcoming 1.6.5 release Michael Tuexen
2004-08-11 12:29 ` Michael Tuexen
2004-08-13 13:40   ` Marius Vollmer
2004-08-13 20:27     ` Michael Tuexen
2004-08-24 14:15       ` Marius Vollmer
2004-08-24 17:35         ` Michael Tuexen
2004-09-08 15:03           ` Marius Vollmer
2004-09-08 15:34             ` Michael Tuexen
2004-08-14  9:59     ` Michael Tuexen
2004-08-16  0:40       ` Kevin Ryde
2004-08-16 10:42         ` Michael Tuexen
2004-08-17 23:46           ` Kevin Ryde
2004-08-19 18:34             ` Michael Tuexen
2004-08-20  1:13               ` Kevin Ryde [this message]
2004-08-20  7:57                 ` Michael Tuexen
2004-08-16 17:02       ` Michael Tuexen
2004-08-16 18:44         ` Rob Browning
2004-08-20 18:18           ` Michael Tuexen
2004-08-23  0:58             ` Kevin Ryde
2004-08-23 19:54               ` Michael Tuexen
2004-08-24  0:57                 ` Kevin Ryde
2004-08-24 11:27                   ` Michael Tuexen
2004-08-24 12:46                     ` Michael Tuexen
2004-08-24 14:24                       ` Marius Vollmer
2004-08-24 18:22                         ` Michael Tuexen

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