From: erik quanstrom <quanstro@coraid.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] csipinfo
Date: Wed, 18 Oct 2006 15:30:28 -0400 [thread overview]
Message-ID: <f28533bc058a55886d97cdf9f859d297@coraid.com> (raw)
In-Reply-To: <0fcc387289a4a346cbd5bf450171a0d0@plan9.jp>
> Thanks, this finally looks like what I need. Two points though:
> 1. Is 64 bytes sufficient for the domain name? Searching the ’net
> I’ve found other numbers — according to <http://tinyurl.com/ykyths> it
> should be 1005; <http://tinyurl.com/xdp4> links to a name about 140
> bytes long and firefox handles it just fine.
this was throwaway code. i didn't think very hard about that number.
ndb does have a maximum value length of 64 bytes.
; g -i max /sys/src/cmd/ndb/dns.h:
dns.h:68: Domlen= 256, /* max domain name length (with NULL) */
> 2. Why the second part of “if(l < 0 || l == sizeof buf)”?
room for the terminating null.
as pointed out, this doesn't quite work. you have to reverse the dots yourself and add in-addr.arpa.
the code is in /sys/src/cmd/ndb/dnsquery.c
- erik
next prev parent reply other threads:[~2006-10-18 19:30 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <61d9157e8f6994d999d7f257cd2b05b4@coraid.com>
2006-10-18 18:44 ` Joel “chesky” Salomon
2006-10-18 19:14 ` rog
2006-10-18 19:26 ` erik quanstrom
2006-10-18 19:38 ` Joel “chesky” Salomon
2006-10-18 19:57 ` C H Forsyth
2006-10-18 23:51 ` Charles Forsyth
2006-10-19 8:29 ` Charles Forsyth
2006-10-18 20:17 ` Joel “chesky” Salomon
2006-10-18 21:29 ` geoff
2006-10-18 19:56 ` Charles Forsyth
2006-10-18 19:59 ` erik quanstrom
2006-10-18 20:15 ` rog
2006-10-18 19:30 ` erik quanstrom [this message]
2006-10-18 3:10 Joel “chesky” Salomon
2006-10-18 3:36 ` geoff
2006-10-18 5:20 ` Joel “chesky” Salomon
2006-10-18 5:37 ` geoff
2006-10-18 5:53 ` Joel “chesky” Salomon
2006-10-18 12:38 ` Joel “chesky” Salomon
2006-10-18 15:32 ` Russ Cox
2006-10-18 16:43 ` Joel Salomon
2006-10-18 16:59 ` rog
2006-10-18 20:38 ` andrey mirtchovski
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