Re: Underscores in hostnames

Thank you! I probably won't do this unless I get a lot of
complaints, but at least I now know where to change it.

> On Tue, 02-Feb-1999 at 15:34:44 -0500, Jon Fraser wrote:
> >
> > Hello,
> >
> > Recently a customer complained because he could
> > not get to beardie_fun.listbot.com. The name has an
> > illegal '_' in it, and squid complains.
> >
> > I compiled url.c with ALLOW_HOSTNAME_UNDERSCORES. This is
> > squid 2.1.patch2. Squid doens't complain about the underscore anymore
> > , but the DNS lookup fails. If I do an nslookup on the machine, it
> > works. I put an entry in the /etc/hosts for beardie_fun.listbot.com,
> > and everything works fine.
> >
> > This is on Freebsd 2.2.8. I took a look at the
> > source for gethostbyname and I don't see it checking for
> > illegal characters.
> >
> > Has anyone else seen this?
>
> Yup, maybe the patch doesn't appliy cleanly, but this made
> me happy a while ago. I don't use it anymore since the
> offending servers should change their hostname and not I the
> resolver...
>
> Well, you should compile that with -DANDRE, of curse, because
> this is my way of enabling local changes...
>
>
> *** lib/libc/net/res_comp.c.ORI Fri May 8 21:36:22 1998
> --- lib/libc/net/res_comp.c Fri May 8 21:36:51 1998
> ***************
> *** 148,154 ****
> #define digitchar(c) ((c) >= 0x30 && (c) <= 0x39)
>
> #define borderchar(c) (alphachar(c) || digitchar(c))
> ! #define middlechar(c) (borderchar(c) || hyphenchar(c))
> #define domainchar(c) ((c) > 0x20 && (c) < 0x7f)
>
> int
> --- 148,154 ----
> #define digitchar(c) ((c) >= 0x30 && (c) <= 0x39)
>
> #define borderchar(c) (alphachar(c) || digitchar(c))
> ! #ifdef ANDRE
> ! #define middlechar(c) (borderchar(c) || hyphenchar(c) || ((c) == '_'))
> ! #else
> ! #define middlechar(c) (borderchar(c) || hyphenchar(c))
> ! #endif
> #define domainchar(c) ((c) > 0x20 && (c) < 0x7f)
>
> int
>
Received on Tue Feb 02 1999 - 14:27:51 MST