Subject: Re: ipv6 for wget
To: None <tech-pkg@NetBSD.org>
From: Yokoyama, Atsushi <firstname.lastname@example.org>
Date: 01/23/2005 21:27:30
Does wget-1.9.1 work with --enable-ipv6 option on NetBSD?
The option should be enabled by default?
Recently I've noticed that wget-1.9.1nb3 didn't work even
for IPv4 HTTP acquisition. My kernel is 1.6.2 and IPv6
> --20:50:24-- http://www.somewhere.net/foo.html
> => `foo.html'
> Resolving www.somewhere.net... 220.127.116.11
> Connecting to www.somewhere.net[18.104.22.168]:80... failed: Invalid > argument.
When I disabled it as '--disable-ipv6', the problem has gone.
With --enable-ipv6, I found that the following connect() in
connect.c failed and errno became EINVAL (22). The given
ctx->addr seemed IPv4-mapped address.
> static void
> connect_with_timeout_callback (void *arg)
> struct cwt_context *ctx = (struct cwt_context *)arg;
> ctx->result = connect (ctx->fd, ctx->addr, ctx->addrlen);
> /* Like connect, but specifies a timeout. If connecting takes longer
> than TIMEOUT seconds, -1 is returned and errno is set to
> ETIMEDOUT. */
According to http://orange.kame.net/dev/cvsweb.cgi/kame/kame/kame/v6test/conf/transition-abuse.conf?rev=1.22,
the current NetBSD kernel does not allow IPv4-mapped address
Does the problem occur on my kernel configuration only?