[ECOS] Can't get socket's IP address w/ new stack?

[Gary Thomas]

On Mon, 2003-08-18 at 13:09, Grant Edwards wrote:
> On Mon, Aug 18, 2003 at 10:56:35AM -0500, Grant Edwards wrote:
> 
> > I think the problem is in the sequence of ioctl() calls I'm
> > using to configure the stack. The SIOCSxxxxx ioctl() seem to
> > have odd side-effects, and you have to do them in a certain
> > sequence (and do some of them more than once?).  The magic
> > sequence must have changed.
> 
> Here's the answer:
> 
> With the new stack you have to:
> 
>     1) Set the address (SIOCIFADDR)
>     2) Set the mask (SIOCSIFNETMASK)
> ++> 3) Set the address _again_ (SIOCSIFADDR)  <++
>     4) Set the broadcast address (SIOCSIFBRDADDR)
>     5) Set the routing (SIOCADDRT)
>  
> With the old stack, you didn't have to do step 3 (set the IP
> address a second time).  Odd, eh?
> 

What happens if you skip step 1 (i.e. only do SIFNETMASK followed
by SIFADDR)?

-- 
Gary Thomas <gary@mlbassoc.com>
MLB Associates


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