which function can I use to get host ipaddr?

[lx1...@my-deja.com]

Same as subject.

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Before you buy.

[Jim Way]

lx1975,

There's probably a number of ways to do it. One way is to examine the
sysBootLine string. Here's a shell example:

-> printf sysBootLine
cpm(0,0)jway:vxWorks e=172.16.18.23:ffff0000 h=172.16.16.166
g=172.16.16.1 u=remoteftp pw=
tomahawk f=0x8 tn=rot21value = 113 = 0x71 = 'q'

The e= value is the target ip and mask; the h= value is the host.

In code, this snippet seems to work ok:

extern char *sysBootLine;
BOOT_PARAMS BootParams;
if (*bootStringToStruct (sysBootLine, &BootParams) == 0)
{
// Get my IP address. (see documentation for field name
associated with host IP address).
sscanf (BootParams.ead, "%d.%d.%d.%d", &l1, &l2, &l3, &l4);
}

Hope this helps.

Jim

> Newsgroups: comp.os.vxworks
> Subject: which function can I use to get host ipaddr?
> Date: Thu, 10 Aug 2000 20:40:24 GMT
> From: lx1...@my-deja.com
> Organization: Deja.com - Before you buy.
> Message-ID: <8mv3vn$7ai$1...@nnrp1.deja.com>

-----------------------------------------
Jim Way, Software Engineer
Datum Austin (Austron Inc.)
voice: 512.721.4170
fax : 512.990.9712
email: jwayATdatumDOTcom (no spam please)
-----------------------------------------

[David Laight]

> > Subject: which function can I use to get host ipaddr?

If you know the interface name just call ifAddrGet().

Getting the list of interface names may be more difficult.

The vxWorks ifShow() routines checks each entry in the ifnet table.

David

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David Laight email: d...@tadpole.co.uk
Tadpole Technology plc phone: +44 1223 428 232
Cambridge, UK fax: +44 1223 428 201