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From Davi Arnaut <d...@haxent.com.br>
Subject Re: [Vote] Release APR 1.2.9/0.9.14 and apr-iconv 1.2.0
Date Wed, 06 Jun 2007 23:49:06 GMT
Colm MacCarthaigh wrote:
> On Wed, Jun 06, 2007 at 08:32:12PM -0300, Davi Arnaut wrote:
>> /Users/davi/gai $ ./gai -na ::1
>> getaddrinfo("::1", NULL, {.family=AF_UNSPEC,
>> .hints=0|AI_ADDRCONFIG|AI_NUMERICHOST}) = 0:
>>  family=30, proto= 6 inet6: addr=::1, port=0, flowinfo=0
>>
>> How come this succeeded? The system doesn't have any public ipv6,
>> the only "configured" ipv6 address is ::1.
> 
> AI_NUMERICHOST trumps AI_ADDRCONFIG on some platforms because people
> infer that if you supply it you are being more specific in your request.
> The technical reason is because the decision to make an AAAA query or
> not is buried in their resolver code (*cough*, this may or may not be my
> fault) , and that code never gets triggered when you use AI_NUMERICHOST.
> 
> It's not strictly in the letter of rfc3493 though, it's a resolver bug.

Ok, ack.

> 
>> /Users/davi/gai $ ./gai -na
>> getaddrinfo(NULL, NULL, {.family=AF_UNSPEC,
>> .hints=0|AI_ADDRCONFIG|AI_NUMERICHOST}) = -1:
>> error: nodename nor servname provided, or not known
> 
> Why wouldn't that fail?
> 

Sorry, it should have been:

getaddrinfo("::1", NULL, {.family=AF_UNSPEC, .hints=0|AI_ADDRCONFIG}) = 0:
 family=30, proto= 6 inet6: addr=::1, port=0, flowinfo=0

Last question (sorry for wasting your time), why this one succeeded?

--
Davi Arnaut

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