Re: [Libreoffice] [PATCH] Replace command domainname by getdomainname() on Unix

Lionel Elie Mamane <lionel -AT- mamane.lu>
Sun, 13 Nov 2011 14:16:51 +0100

On Sun, Nov 13, 2011 at 12:06:52PM +0200, Tor Lillqvist wrote:

The portable and strictly correct way seems to be to do a
DNS query on the result of gethostname() (gethostbyname or getaddrinfo
with AI_CANONNAME).

But in general we should avoid potentially pointless DNS calls. Let's
not risk having to wait for DNS timeouts in badly configured
situations. (...)

Especially as many "home" end-user machines certainly don't have any
public official DNS name anyway, at least not one the machine itself
would know, but some cable-modem-42651e7a3c.isp.example.com.


AFAIK, a well-configured machine has /etc/hosts setup so that
gethostbyname(gothostname()) does not touch DNS, but is resolved
entirely from reading /etc/hosts. Doesn't the installer *by* *default*
set things up like that? At least, the Debian installer does.

This does not help with "badly configured situations", indeed :-|

-- 
Lionel

Context

Re: [Libreoffice] [PATCH] Replace command domainname by getdomainname() on Unix (continued)

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