Date: Wed, 23 Feb 2005 00:34:25 +0200 (EET) From: Valentin Nechayev <netch@netch.kiev.ua> To: FreeBSD-gnats-submit@FreeBSD.org Subject: bin/77937: BIND tools fail on hosts without IPv6 and NSes with AAAA Message-ID: <200502222234.j1MMYPOt017960@segfault.kiev.ua> Resent-Message-ID: <200502222240.j1MMeHCT054681@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
>Number: 77937
>Category: bin
>Synopsis: BIND tools fail on hosts without IPv6 and NSes with AAAA
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Feb 22 22:40:16 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator: Segmentation Fault
>Release: FreeBSD 4.9-RELEASE-p12 i386
>Organization:
private
>Environment:
FreeBSD 4.9-RELEASE-p12
FreeBSD 4.11-RELEASE
>Description:
When quering something from NSes with AAAA (e.g. ns.ripe.net) on host without
IPv6 in kernel, dig, host, nslookup fail to fall back to IPv4.
>How-To-Repeat:
Screenshot of failure:
$ dig @ns.ripe.net -x 193 ns
; <<>> DiG 8.3 <<>> @ns.ripe.net -x ns
; (2 servers found)
;; res options: init recurs defnam dnsrch
;; res_nsend: Protocol not supported
>Fix:
Patch follows.
--- contrib/bind/lib/resolv/res_send.c.0 Tue Jan 25 12:42:56 2005
+++ contrib/bind/lib/resolv/res_send.c Wed Feb 23 00:19:22 2005
@@ -765,7 +765,7 @@
if (EXT(statp).nssocks[ns] < 0) {
*terrno = errno;
Perror(statp, stderr, "socket(dg)", errno);
- return (-1);
+ return (*terrno == EPROTONOSUPPORT ? 0 : -1);
}
#ifndef CANNOT_CONNECT_DGRAM
/*
>Release-Note:
>Audit-Trail:
>Unformatted:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200502222234.j1MMYPOt017960>