From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Thu, 16 Apr 2020 11:08:25 -0500 (CDT)
From: Per Oberg <pero@wolfram.com>
Message-ID: <2018325684.72682.1587053305425.JavaMail.zimbra@wolfram.com>
Subject: RTNet and setsockopt
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To: xenomai <xenomai@xenomai.org>

Dear list

I am "porting" a posix application using raw network packages to RTNet. The=
 old code is trying to use setsockopt and ioctl. The calls I am trying to u=
se are=20

setsockopt:=20
 SO_RCVTIMEO
 SO_SNDTIMEO
 SO_DONTROUTE

These return "No such device". I guess that this is because setsockopt is n=
ot rt-compatible, correct ? ( There seem to be no corresponding rt_setsocko=
pt... )

ioctl :
 IFF_PROMISC | IFF_BROADCAST

These return "Operation not supported".=20

My code works fairly well as it is, and I probably do not need SO_DONTROUTE=
, IFF_PROMISC, and IFF_BROADCAST with rtnet. I would, however, like to have=
 SO_RCVTIMEO, SO_SNDTIMEO or nonblock. Do I need to use O_NONBLOCK together=
 with send() instead or am I missing something ?

Best Regards
Per =C3=96berg=20