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Date:      Tue, 6 Aug 2002 12:44:59 -0700 (PDT)
From:      TOGAWA Satoshi <toga@puyo.org>
To:        freebsd-gnats-submit@FreeBSD.org
Subject:   bin/41388: src/contrib/bind/bin/dig/dig.c has bug in reverse6()
Message-ID:  <200208061944.g76JixwE054842@www.freebsd.org>

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>Number:         41388
>Category:       bin
>Synopsis:       src/contrib/bind/bin/dig/dig.c has bug in reverse6()
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Aug 06 12:50:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     TOGAWA Satoshi
>Release:        4-STABLE
>Organization:
>Environment:
FreeBSD mituki.vegalta.org 4.6-STABLE FreeBSD 4.6-STABLE #13: Thu Aug  1 15:18:22 JST 2002     togawa@mituki.vegalta.org:/usr/obj/usr/src/sys/MITUKI  i386

>Description:
src/contrib/bind/bin/dig/dig.c has bug in reverse6(),
so when we use option -x, we get wrong answer.

I think both -current and RELENG_4_6 have same problem.

>How-To-Repeat:
For example:

---
$ dig -x 3ffe:505:2054::1

; <<>> DiG 8.3 <<>> -x 
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 2
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUERY SECTION:
;;      1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.4.5.0.2.0.0.5.0.e.f.f.3.ip6.arpa, type = ANY, class = IN

25th dotted letter, must be "5", is wrong "0".

>Fix:
--- dig.c.orig	Wed Aug  7 04:28:59 2002
+++ dig.c	Wed Aug  7 04:29:04 2002
@@ -1799,7 +1799,7 @@
 		in6->s6_addr[6] & 0x0f, (in6->s6_addr[6] >> 4) & 0x0f,
 		in6->s6_addr[5] & 0x0f, (in6->s6_addr[5] >> 4) & 0x0f,
 		in6->s6_addr[4] & 0x0f, (in6->s6_addr[4] >> 4) & 0x0f,
-		in6->s6_addr[6] & 0x0f, (in6->s6_addr[3] >> 4) & 0x0f,
+		in6->s6_addr[3] & 0x0f, (in6->s6_addr[3] >> 4) & 0x0f,
 		in6->s6_addr[2] & 0x0f, (in6->s6_addr[2] >> 4) & 0x0f,
 		in6->s6_addr[1] & 0x0f, (in6->s6_addr[1] >> 4) & 0x0f,
 		in6->s6_addr[0] & 0x0f, (in6->s6_addr[0] >> 4) & 0x0f);

>Release-Note:
>Audit-Trail:
>Unformatted:

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