mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-16 10:20:30 +00:00
94 lines
2.6 KiB
C
94 lines
2.6 KiB
C
/*-
|
|
* Copyright (c) 2005 Brian Somers <brian@FreeBSD.org>
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/types.h>
|
|
#include <err.h>
|
|
#include <limits.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
#include "extern.h"
|
|
|
|
void
|
|
c_link(const char *file1, off_t skip1, const char *file2, off_t skip2)
|
|
{
|
|
char buf1[PATH_MAX], *p1;
|
|
char buf2[PATH_MAX], *p2;
|
|
int dfound, len1, len2;
|
|
off_t byte;
|
|
u_char ch;
|
|
|
|
if ((len1 = readlink(file1, buf1, sizeof(buf1) - 1)) < 0) {
|
|
if (!sflag)
|
|
err(ERR_EXIT, "%s", file1);
|
|
else
|
|
exit(ERR_EXIT);
|
|
}
|
|
|
|
if ((len2 = readlink(file2, buf2, sizeof(buf2) - 1)) < 0) {
|
|
if (!sflag)
|
|
err(ERR_EXIT, "%s", file2);
|
|
else
|
|
exit(ERR_EXIT);
|
|
}
|
|
|
|
if (skip1 > len1)
|
|
skip1 = len1;
|
|
buf1[len1] = '\0';
|
|
|
|
if (skip2 > len2)
|
|
skip2 = len2;
|
|
buf2[len2] = '\0';
|
|
|
|
dfound = 0;
|
|
byte = 1;
|
|
for (p1 = buf1 + skip1, p2 = buf2 + skip2; *p1 && *p2; p1++, p2++) {
|
|
if ((ch = *p1) != *p2) {
|
|
if (xflag) {
|
|
dfound = 1;
|
|
(void)printf("%08llx %02x %02x\n",
|
|
(long long)byte - 1, ch, *p2);
|
|
} else if (lflag) {
|
|
dfound = 1;
|
|
(void)printf("%6lld %3o %3o\n",
|
|
(long long)byte, ch, *p2);
|
|
} else
|
|
diffmsg(file1, file2, byte, 1);
|
|
/* NOTREACHED */
|
|
}
|
|
byte++;
|
|
}
|
|
|
|
if (*p1 || *p2)
|
|
eofmsg (*p1 ? file2 : file1);
|
|
if (dfound)
|
|
exit(DIFF_EXIT);
|
|
}
|