Re: IPv6 detection - Mailing list pgsql-hackers

From Peter Eisentraut
Subject Re: IPv6 detection
Date
Msg-id Pine.LNX.4.44.0301070008460.8249-100000@localhost.localdomain
Whole thread Raw
In response to IPv6 detection  (Bruce Momjian <pgman@candle.pha.pa.us>)
Responses Re: IPv6 detection  (Bruce Momjian <pgman@candle.pha.pa.us>)
List pgsql-hackers
Bruce Momjian writes:

> The IPv6 patch currently checks for the function getaddrinfo() and the
> include file netinet/ip6.h.

getaddrinfo() has nothing to do with IPv6, and netinet/ip6.h isn't
included anywhere, so why check for it?

I believe we would need to check for a combination of

getaddrinfo()
inet_ntop()/inet_pton()
AF_INET6
struct sockaddr_in6

Then again, it might be simpler to make it a configure option
(--enable-ipv6) and just assume all those things exist.  Over time the
interfaces might stabilize.

However, even when IPv6 support is compiled in, we still need some
run-time control about whether it should get activated because the
presence of the programming interfaces doesn't tell you anything about
whether the run-time environment supports it.

-- 
Peter Eisentraut   peter_e@gmx.net



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