1/*-
2 * Copyright (c) 1991, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
|
34#include <sys/cdefs.h>
35
36__FBSDID("$FreeBSD: head/usr.bin/cmp/special.c 87282 2001-12-03 20:56:16Z dwmalone $");
37
|
| 34#if 0 |
35#ifndef lint
|
39static const char sccsid[] = "@(#)special.c 8.3 (Berkeley) 4/2/94";
|
| 36static char sccsid[] = "@(#)special.c 8.3 (Berkeley) 4/2/94"; |
37#endif
|
| 38#endif |
39
|
40#include <sys/cdefs.h>
41__FBSDID("$FreeBSD: head/usr.bin/cmp/special.c 87628 2001-12-10 21:13:08Z dwmalone $");
42 |
43#include <sys/types.h>
44
45#include <err.h>
46#include <stdlib.h>
47#include <stdio.h>
48#include <string.h>
49
50#include "extern.h"
51
52void
53c_special(fd1, file1, skip1, fd2, file2, skip2)
54 int fd1, fd2;
55 const char *file1, *file2;
56 off_t skip1, skip2;
57{
58 int ch1, ch2;
59 off_t byte, line;
60 FILE *fp1, *fp2;
61 int dfound;
62
63 if ((fp1 = fdopen(fd1, "r")) == NULL)
64 err(ERR_EXIT, "%s", file1);
65 if ((fp2 = fdopen(fd2, "r")) == NULL)
66 err(ERR_EXIT, "%s", file2);
67
68 dfound = 0;
69 while (skip1--)
70 if (getc(fp1) == EOF)
71 goto eof;
72 while (skip2--)
73 if (getc(fp2) == EOF)
74 goto eof;
75
76 for (byte = line = 1;; ++byte) {
77 ch1 = getc(fp1);
78 ch2 = getc(fp2);
79 if (ch1 == EOF || ch2 == EOF)
80 break;
81 if (ch1 != ch2) {
82 if (lflag) {
83 dfound = 1;
84 (void)printf("%6lld %3o %3o\n",
85 (long long)byte, ch1, ch2);
86 } else {
87 diffmsg(file1, file2, byte, line);
88 /* NOTREACHED */
89 }
90 }
91 if (ch1 == '\n')
92 ++line;
93 }
94
95eof: if (ferror(fp1))
96 err(ERR_EXIT, "%s", file1);
97 if (ferror(fp2))
98 err(ERR_EXIT, "%s", file2);
99 if (feof(fp1)) {
100 if (!feof(fp2))
101 eofmsg(file1);
102 } else
103 if (feof(fp2))
104 eofmsg(file2);
105 if (dfound)
106 exit(DIFF_EXIT);
107}
|