Path: utzoo!attcan!utgpu!dennis
From: dennis@gpu.utcs.utoronto.ca (Dennis Ferguson)
Newsgroups: can.sun-stroke
Subject: Re: SIOCGIFNETMASK equiv. under 3.5?
Message-ID: <1989Jun28.150421.18401@gpu.utcs.utoronto.ca>
Date: 28 Jun 89 19:04:21 GMT
References: <649@aurora.AthabascaU.CA>
Reply-To: dennis@gpu.utcs.utoronto.ca (Dennis Ferguson)
Distribution: can
Organization: Mechanical Engineering, University of Toronto
Lines: 12
Checksum: 64969

In article <649@aurora.AthabascaU.CA> lyndon@cs.AthabascaU.CA (Lyndon Nerenberg) writes:
> Does anyone know of a way to pick up the netmask and broadcast mask
> of an IP interface under SunOS3.5? I need to emulate the facility
> provided by SIOCGIFNETMASK and SIOCGIFBRDADDR under 4.3.

Both requests can be done under SunOS3.5.  The only differences from 4.3
that I'm aware of are that ifreq.ifr_broadaddr doesn't exist (you
get the broadcast address from ifreq.ifr_addr instead) and that
the netmask returned by the other request can sometimes be 0.0.0.0
when subnetting isn't being done.

Dennis