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PR/48475 CVS commit: src/lib/libc/resolv

The following reply was made to PR lib/48475; it has been noted by GNATS.

From: "Christos Zoulas" <>
Subject: PR/48475 CVS commit: src/lib/libc/resolv
Date: Mon, 10 Nov 2014 22:29:24 -0500

 Module Name:	src
 Committed By:	christos
 Date:		Tue Nov 11 03:29:24 UTC 2014
 Modified Files:
 	src/lib/libc/resolv: res_mkquery.c
 Log Message:
 PR/48475: YAMAGUCHI Takanori: EDNS option broken with unbound. struct
 querybuf in net/gethnamaddr.c defines MAXPACKET to 64K. This in turn
 gets passed down until it reached res_nopt(..., answer, anslen), where
 the size of the buffer must fit in 16 bits. Unfortunately we end up
 being one more than the max so we end up sending a 0 as the size and
 unbound does not like that. Instead we clip now to 64K - 1, and everyone
 is happy.
 XXX: Pullup to 7.
 To generate a diff of this commit:
 cvs rdiff -u -r1.13 -r1.14 src/lib/libc/resolv/res_mkquery.c
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

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