Re: TCP/IP Address

["Shannon O'Donnell" <orion@xxxxxxxxxxxxxxx>]

Thanks Jeffrey!  That's exactly what I was looking for. Someone else had
posted something about the gethosts earlier, but I wasn't sure just what
that was till now.  That's exactly the answer I was looking for.

Thanks to everyone who responded to this question.  I just love this
forum! You get such a great mix of responses, each one helpful in its
own way!

Thanks everyone.

Shannon O'Donnell


Jeffrey Silberberg wrote:

> Shannon,
>
>         In the IP world you already have every thing you need, if
> things are
> setup correctly. The
> IP dotted decimal address is normally referenced by a symbolic in one
> of two
> places and
> sometimes both.
>
>         First there is a concept of a Domain Name Server (DNS) the DNS
> has a
> number of components
> but it's primary function is to provide a mapping from a fully
> qualified
> symbolic host name to the IP address
> and back again.  Also, for most IP stacks available on the market an
> independent system can have a
> "host" table, also known as "lmhosts", this can override the DNS
> and/or
> serve as a supplement to it.
>
>         Now, if I wanted to distribute a script to a one hundred
> locations
> that always sent to a "common"
> AS/400 (or any host for that matter) then I would use a symbolic name
> in the
> FTP script such as
> "ftp myas400.mycompany.com"  this would resolve the
> myas400.mycompany.com
> into a doted
> decimal address by first looking in the host table, and then to the
> local
> DNS, and then to the Internet DNS,
> etc...  Based on what is defined in the
> system/network/routers/gateways/........
>
>         Okay, now that I have done all that I will give you one other
> answer.  In the standard API's available for
> IP connections there is a series of "GETHOST..." calls.  You could [
> hostid
> = gethostid(); ] which will determine the unique
> 32 bit host identifier assigned to the local machine, or you could
> [retcode
> = gethostbyname (name); ] which will map a host
> name to an IP address, or you could [retcode = gethostbyaddr (addr,
> alen,
> atype); ] which will return a structure full of information
> about the IP address contained in addr.  I would suggest looking at
> the API
> documentation for more details here.
>
>         Lastly, a simple way to prime a host look up is to keep the
> system
> name in the Network Attributes, and the primary host
> name the same, so that you can rtvneta sysname(name) and then
> gethostbyname
> to get the address which is what you asked
> for in the first place.
>
>         Hope this is clearer then mud.   :-)
>
>         Jeff Silberberg..
>         CompuDesigns, Inc...
> -----Original Message-----
> From: Shannon O'Donnell <orion@auburnctnet.com>
> To: MIDRANGE-L@midrange.com <MIDRANGE-L@midrange.com>
> Date: Monday, February 22, 1999 2:38 PM
> Subject: TCP/IP Address
>
> >This might be a dumb question, but I am away from my office and can't
>
> >look it up, and my internet connection is too slow to spend a long
> time
> >searching the online knowledgebase for the answer...so...does anyone
> >know, off the top of their head, if there is a way to get the IP
> address
> >of the AS/400 using a command, a cl program or an API and what it's
> >called?
> >
> >I just need to verify that this function exists. I know about the
> >Retrieve Device Description API that will do this for the individual
> >client. I'm just not sure if there's a way to retrieve the actual IP
> >address as defined for the system.
> >
> >Thanks!
> >
> >+---
> >| This is the Midrange System Mailing List!
> >| To submit a new message, send your mail to MIDRANGE-L@midrange.com.
>
> >| To subscribe to this list send email to
> MIDRANGE-L-SUB@midrange.com.
> >| To unsubscribe from this list send email to
> MIDRANGE-L-UNSUB@midrange.com.
> >| Questions should be directed to the list owner/operator:
> david@midrange.com
> >+---
>
> +---
> | This is the Midrange System Mailing List!
> | To submit a new message, send your mail to MIDRANGE-L@midrange.com.
> | To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com.
>
> | To unsubscribe from this list send email to
> MIDRANGE-L-UNSUB@midrange.com.
> | Questions should be directed to the list owner/operator:
> david@midrange.com
> +---



+---
| This is the Midrange System Mailing List!
| To submit a new message, send your mail to MIDRANGE-L@midrange.com.
| To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com.
| To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com.
| Questions should be directed to the list owner/operator: david@midrange.com
+---