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Re: PostgreSQL 8.0.3, AIX 5.1, getaddrinfo, AI_NUMERICHOST

From: "Logan O'Sullivan Bruns" <logan(at)gedanken(dot)org>
To: "Mohan, Ross" <RMohan(at)arbinet(dot)com>
Cc: pgsql-ports(at)postgresql(dot)org
Subject: Re: PostgreSQL 8.0.3, AIX 5.1, getaddrinfo, AI_NUMERICHOST
Date: 2005-08-08 22:29:08
Message-ID: 20050808222907.GY6200@pravda.gedanken.org (view raw or flat)
Thread:
Lists: pgsql-ports
For AIX 5.1, if I compile it as is with the 4 value then it SEGVs but
it is fine if I set it to zero. They have the define in the header but
not in the manual page. My guess is that at least in 5.1 it is an
incomplete implementation. The header more accurately reflects the RFC
then the actual implementation.

I do agree though it isn't postgres's fault and it sounds like it is
fixed in AIX 5.3 anyway. 

Thanks,
  logan

On Mon, Aug 08, 2005 at 10:04:24PM -0000, Mohan, Ross wrote:
> "Yea, what he said" ;-)
> 
> 
> I found the working stuff in getaddrinfo.h in PG distro only. 
> 
> However, in NETDB.H as Logan noted, it is there on my 5.3 AIX:
> 
> ....
> /* Flag definitions for addrinfo hints in protocol-independent name/addr/service service. RFC2133 */
> /* Also flag definitions for getipnodebyname  RFC 2553  */
> #define AI_CANONNAME    0x01    /* canonical name to be included in return */
> #define AI_PASSIVE      0x02    /* prepare return for call to bind() */
> #define AI_NUMERICHOST  0x04    /* RFC 2553, nodename is a numeric host address string */
> #define AI_ADDRCONFIG   0x08    /* RFC 2553, source address family configured */
> #define AI_V4MAPPED     0x10    /* RFC 2553, accept v4 mapped addresses */
> #define AI_ALL          0x20    /* RFC 2553, accept all addresses */
> #define AI_NUMERICSERV  0x40    /* RFC 2553, service name is a numeric string */
> #define AI_DEFAULT      (AI_V4MAPPED | AI_ADDRCONFIG)     /* RFC 2553 */
> .....
> 
> 
> 
> I wonder if the 4 vice 0 is an issue....think not, b/c the
> PG distro header has a good IFDEF stanza for this....
> 
> 
> 
> 
> -----Original Message-----
> From:	Tom Lane [mailto:tgl(at)sss(dot)pgh(dot)pa(dot)us]
> Sent:	Mon 08-Aug-05 5:06 PM
> To:	Logan O'Sullivan Bruns
> Cc:	Mohan, Ross; pgsql-ports(at)postgresql(dot)org
> Subject:	Re: [PORTS] PostgreSQL 8.0.3, AIX 5.1, getaddrinfo, AI_NUMERICHOST 
> "Logan O'Sullivan Bruns" <logan(at)gedanken(dot)org> writes:
> > I only have access to AIX5.1. On 5.1 the relevant prototype and
> > defines are in netdb.h.
> 
> > The man page for has:
> 
> > struct addrinfo {
> >   int               ai_flags;          /* AI_PASSIVE, AI_CANONNAME */
> 
> > Note the absence of AI_NUMERICHOST. It isn't mentioned anywhere in the
> > man page but it is present in the header.
> 
> Defined how?
> 
> We do have
> 
> #ifndef AI_NUMERICHOST
> #define AI_NUMERICHOST 0
> #endif
> 
> in our own code, so we should do the right thing on platforms that don't
> define the symbol.  If AIX 5.1 defines the symbol and then chokes when
> you use it, that's a bug to take up with IBM, not us.
> 
> 			regards, tom lane
> 
> 
> 
> 
> ---------------------------(end of broadcast)---------------------------
> TIP 6: explain analyze is your friend

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