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From: Gabor Kovesdan <gabor@FreeBSD.org>
To: Perforce Change Reviews <perforce@freebsd.org>
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Subject: PERFORCE change 146988 for review
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http://perforce.freebsd.org/chv.cgi?CH=146988

Change 146988 by gabor@gabor_server on 2008/08/09 13:40:04

	- Check in a working and hopefully GNU compatible version of
	  binary detecting

Affected files ...

.. //depot/projects/soc2008/gabor_textproc/grep/file.c#33 edit

Differences ...

==== //depot/projects/soc2008/gabor_textproc/grep/file.c#33 (text+ko) ====

@@ -119,32 +119,19 @@
 {
 	int		 i = 0;
 	char		 ch;
-	size_t		 size;
-	wchar_t		 wbinbuf[BUFSIZ];
-	const char	*src = binbuf;
-	mbstate_t	 mbs;
 
 	/* Fill in the buffer if it is empty. */
 	if (binbufptr == NULL) {
 		/* Only pre-read to the buffer if we need the binary check. */
 		if (binbehave != BINFILE_TEXT) {
-			for (; i < sizeof(wbinbuf) && !grep_feof(f); i++) {
+			for (; i < sizeof(binbuf) && !grep_feof(f); i++) {
 				ch = grep_fgetc(f);
 				if (ch != EOF)
 					binbuf[i] = ch;
 				else
 					break;
 			}
-			/* Convert at most (BUFSIZ * sizeof(wint_t)) characters or
-				(BUFSIZ - 1) bytes to wide character string. */
-			size = mbsnrtowcs(wbinbuf, &src, sizeof(wbinbuf), BUFSIZ - 1, &mbs);
-			f->binary = 0;
-			for (; size > 0; size--)
-				if (iswbinary(wbinbuf[size])) {
-					f->binary = 1;
-					break;
-				}
-			
+			f->binary = memchr(binbuf, (filebehave != FILE_GZIP) ? '\0' : '\200', i - 1) != 0;
 		}
 		binbufsiz = i;
 		binbufptr = binbuf;