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Date:      Wed, 10 Jun 2015 16:15:23 +0000 (UTC)
From:      Hajimu UMEMOTO <ume@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r284229 - head/lib/libc/resolv
Message-ID:  <201506101615.t5AGFNFS007092@svn.freebsd.org>

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Author: ume
Date: Wed Jun 10 16:15:22 2015
New Revision: 284229
URL: https://svnweb.freebsd.org/changeset/base/284229

Log:
  Add support for '_' occurring at the beginning or end of a name
  component.
  
  PR:		176093
  Submitted by:	landonf__at__bikemonkey.org
  MFC after:	1 week

Modified:
  head/lib/libc/resolv/res_comp.c

Modified: head/lib/libc/resolv/res_comp.c
==============================================================================
--- head/lib/libc/resolv/res_comp.c	Wed Jun 10 16:00:09 2015	(r284228)
+++ head/lib/libc/resolv/res_comp.c	Wed Jun 10 16:15:22 2015	(r284229)
@@ -147,12 +147,12 @@ dn_skipname(const u_char *ptr, const u_c
 		   || ((c) >= 0x61 && (c) <= 0x7a))
 #define digitchar(c) ((c) >= 0x30 && (c) <= 0x39)
 
-#define borderchar(c) (alphachar(c) || digitchar(c))
 #ifdef	RES_ENFORCE_RFC1034
-#define middlechar(c) (borderchar(c) || hyphenchar(c))
+#define borderchar(c) (alphachar(c) || digitchar(c))
 #else
-#define middlechar(c) (borderchar(c) || hyphenchar(c) || underscorechar(c))
+#define borderchar(c) (alphachar(c) || digitchar(c) || underscorechar(c))
 #endif
+#define middlechar(c) (borderchar(c) || hyphenchar(c))
 #define	domainchar(c) ((c) > 0x20 && (c) < 0x7f)
 
 int



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