[src/trunk]: src/usr.bin/cmp Initialise dfound outside loop so that 0 sized f...

[dsl <dsl%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/5bf0b07c705e
branches:  trunk
changeset: 574626:5bf0b07c705e
user:      dsl <dsl%NetBSD.org@localhost>
date:      Mon Mar 07 07:51:42 2005 +0000

description:
Initialise dfound outside loop so that 0 sized files compare correctly
and to that 'cmp -l' will exit with error is the last block matches.
Pointed out in a private mail bt someone who wishes to remain anonymous.

diffstat:

 usr.bin/cmp/regular.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (34 lines):

diff -r da65809a9e6b -r 5bf0b07c705e usr.bin/cmp/regular.c
--- a/usr.bin/cmp/regular.c     Mon Mar 07 03:17:21 2005 +0000
+++ b/usr.bin/cmp/regular.c     Mon Mar 07 07:51:42 2005 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: regular.c,v 1.14 2005/02/06 21:19:46 dsl Exp $ */
+/*     $NetBSD: regular.c,v 1.15 2005/03/07 07:51:42 dsl Exp $ */
 
 /*-
  * Copyright (c) 1991, 1993, 1994
@@ -34,7 +34,7 @@
 #if 0
 static char sccsid[] = "@(#)regular.c  8.3 (Berkeley) 4/2/94";
 #else
-__RCSID("$NetBSD: regular.c,v 1.14 2005/02/06 21:19:46 dsl Exp $");
+__RCSID("$NetBSD: regular.c,v 1.15 2005/03/07 07:51:42 dsl Exp $");
 #endif
 #endif /* not lint */
 
@@ -69,6 +69,7 @@
                eofmsg(file2);
        len2 -= skip2;
 
+       dfound = 0;
        length = MIN(len1, len2);
        for (blk_sz = 1024 * 1024; length != 0; length -= blk_sz) {
                if (blk_sz > length)
@@ -83,7 +84,6 @@
                        goto mmap_failed;
                }
 
-               dfound = 0;
                blk_cnt = blk_sz;
                for (byte = line = 1; blk_cnt--; ++p1, ++p2, ++byte) {
                        if ((ch = *p1) != *p2) {