/*-
* Copyright (c) 1991, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
blk_cnt = blk_sz;
if ((lflag || sflag) && (memcmp(p1, p2, blk_sz) == 0)) {
/*
* If the two blocks are the same and we are
* using the -l or -s flags, we don't need to
* count lines. There is nothing else to do
* except advance the pointers for munmap()
* below.
*/
p1 += blk_sz;
p2 += blk_sz;
} else {
for (; blk_cnt--; ++p1, ++p2, ++byte) {
if ((ch = *p1) != *p2) {
if (!lflag) {
diffmsg(file1, file2, byte, line);
/* NOTREACHED */
}
dfound = 1;
(void)printf("%6lld %3o %3o\n",
(long long)byte, ch, *p2);
}
if (ch == '\n')
++line;
}
}
munmap(p1 - blk_sz, blk_sz);
munmap(p2 - blk_sz, blk_sz);
skip1 += blk_sz;
skip2 += blk_sz;
}
if (len1 != len2)
eofmsg(len1 > len2 ? file2 : file1, byte, line);
if (dfound)
exit(DIFF_EXIT);
return;