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From: "Andrey A. Chernov" <ache@FreeBSD.org>
Date: Tue, 30 Jul 2013 18:16:44 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
 svn-src-head@freebsd.org
Subject: svn commit: r253810 - head/usr.bin/grep/regex
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Author: ache
Date: Tue Jul 30 18:16:43 2013
New Revision: 253810
URL: http://svnweb.freebsd.org/changeset/base/253810

Log:
  grep -i does not work for simple patterns and single byte locales, like
  	LANG=ru_RU.KOI8-R grep -i <some single KOI8-R letter>
  Fix it.
  
  MFC after:      3 days

Modified:
  head/usr.bin/grep/regex/tre-fastmatch.c

Modified: head/usr.bin/grep/regex/tre-fastmatch.c
==============================================================================
--- head/usr.bin/grep/regex/tre-fastmatch.c	Tue Jul 30 17:35:06 2013	(r253809)
+++ head/usr.bin/grep/regex/tre-fastmatch.c	Tue Jul 30 18:16:43 2013	(r253810)
@@ -395,7 +395,7 @@ static int	fastcmp(const fastmatch_t *fg
 	    if (p == NULL)						\
 	      return REG_ESPACE;					\
 	    for (unsigned int i = 0; i < plen; i++)			\
-	      p[i] = tolower(pat[i]);					\
+	      p[i] = tolower((unsigned char)pat[i]);                    \
 	    _CALC_BMGS(arr, p, plen);					\
 	    xfree(p);							\
 	  }								\
@@ -1030,7 +1030,7 @@ fastcmp(const fastmatch_t *fg, const voi
 	    continue;
 
 	  /* Compare */
-	  if (fg->icase ? (tolower(pat_byte[i]) == tolower(str_byte[i]))
+	  if (fg->icase ? (tolower((unsigned char)pat_byte[i]) == tolower((unsigned char)str_byte[i]))
 		    : (pat_byte[i] == str_byte[i]))
 	  continue;
       }