[9fans] dial meta-name resolution

[9fans] dial meta-name resolution

[plan9fans]

Hi,

How are meta names (in this case $smtp) resolved in plan9?
I kinda expected ndb/csquery to accept names of the form
net!$smtp but it doesn't.

I want to expand a metaname into a FQDN in c. Specificialy I specify my
smtp relay in my /lib/ndb/local, however, if I do this factotum
is passed server=$smtp which isn't helpfull in chosing which key to
provide.

-Steve

Re: [9fans] dial meta-name resolution

[Charles Forsyth]

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try net!$smtp!smtp
with csquery

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From: plan9fans@ntlworld.nospam.com
To: 9fans@cse.psu.edu
Subject: [9fans] dial meta-name resolution
Date: Thu, 4 Mar 2004 12:57:32 0000
Message-ID: <96a186836235a978d537b0f0e2b656e3@snellwilcox.com>

Hi,

How are meta names (in this case $smtp) resolved in plan9?
I kinda expected ndb/csquery to accept names of the form
net!$smtp but it doesn't.

I want to expand a metaname into a FQDN in c. Specificialy I specify my
smtp relay in my /lib/ndb/local, however, if I do this factotum
is passed server=$smtp which isn't helpfull in chosing which key to
provide.

-Steve

Re: [9fans] dial meta-name resolution

[Steve Simon]

Hi,

Thanks, that gives me the IP address. Do I really have to do a
reverse DNS lookup to get the machine name?

What I'am after can be done in shell script as:

if ( ~ $addr 'net!$smtp' )
	addr=`{ndb/query dom `{ndb/query sys $sysname dom} smtp}

NB: My DHCP client gives me the domain, the smtp entry comes from
/lib/ndb/local.

I was just hoping to do it in C.

-Steve

Re: [9fans] dial meta-name resolution

[David Presotto]

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You got the answer, i.e., csquery uses a full path network!host!service.
If you want to resolve any of the meta  names with ndb/csquery, just
tack on a service.

If you think there's something else I should be doing, suggest it.

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From: plan9fans@ntlworld.nospam.com
To: 9fans@cse.psu.edu
Subject: [9fans] dial meta-name resolution
Date: Thu, 4 Mar 2004 12:57:32 0000
Message-ID: <96a186836235a978d537b0f0e2b656e3@snellwilcox.com>

Hi,

How are meta names (in this case $smtp) resolved in plan9?
I kinda expected ndb/csquery to accept names of the form
net!$smtp but it doesn't.

I want to expand a metaname into a FQDN in c. Specificialy I specify my
smtp relay in my /lib/ndb/local, however, if I do this factotum
is passed server=$smtp which isn't helpfull in chosing which key to
provide.

-Steve