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source: kBuild/trunk/src/kmk/kmkbuiltin/cmp.c@ 3092

最後變更 在這個檔案從3092是 3092,由 bird 提交於 7 年 前

cmp.c,cmp_utils.c: 64-bit I/O on windows, please.

  • 屬性 svn:eol-style 設為 native
檔案大小: 4.2 KB
 
1/* $NetBSD: cmp.c,v 1.15 2006/01/19 20:44:57 garbled Exp $ */
2
3/*
4 * Copyright (c) 1987, 1990, 1993, 1994
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32/*__COPYRIGHT("@(#) Copyright (c) 1987, 1990, 1993, 1994\n\
33 The Regents of the University of California. All rights reserved.\n");
34static char sccsid[] = "@(#)cmp.c 8.3 (Berkeley) 4/2/94";
35__RCSID("$NetBSD: cmp.c,v 1.15 2006/01/19 20:44:57 garbled Exp $"); */
36
37#ifdef _MSC_VER
38# define MSC_DO_64_BIT_IO /* for correct off_t */
39#endif
40#include "config.h"
41#include <sys/types.h>
42#include "err.h"
43#include <errno.h>
44#include <stdio.h>
45#include <stdlib.h>
46#include <string.h>
47#include <locale.h>
48#ifndef _MSC_VER
49# include <unistd.h>
50#else
51# include "mscfakes.h"
52#endif
53#include "getopt.h"
54#include "kmkbuiltin.h"
55#include "cmp_extern.h"
56
57
58static const struct option long_options[] =
59{
60 { "help", no_argument, 0, 261 },
61 { "version", no_argument, 0, 262 },
62 { 0, 0, 0, 0 },
63};
64
65
66static int usage(FILE *);
67
68int
69kmk_builtin_cmp(int argc, char *argv[], char **envp)
70{
71 off_t skip1 = 0, skip2 = 0;
72 int lflag = 0, sflag = 0;
73 int ch;
74 char *file1, *file2;
75
76#ifdef kmk_builtin_cmp
77 setlocale(LC_ALL, "");
78#endif
79
80 /* reset getopt and set progname. */
81 g_progname = argv[0];
82 opterr = 1;
83 optarg = NULL;
84 optopt = 0;
85 optind = 0; /* init */
86
87 while ((ch = getopt_long(argc, argv, "ls", long_options, NULL)) != -1)
88 {
89 switch (ch)
90 {
91 case 'l': /* print all differences */
92 lflag = 1;
93 break;
94 case 's': /* silent run */
95 sflag = 1;
96 break;
97 case 261:
98 usage(stdout);
99 return 0;
100 case 262:
101 return kbuild_version(argv[0]);
102 case '?':
103 default:
104 return usage(stderr);
105 }
106 }
107 argv += optind;
108 argc -= optind;
109
110 if (argc < 2 || argc > 4)
111 return usage(stderr);
112
113 file1 = argv[0];
114 file2 = argv[1];
115
116 if (argc > 2)
117 {
118 char *ep;
119
120 errno = 0;
121 skip1 = strtoll(argv[2], &ep, 0);
122 if (errno || ep == argv[2])
123 return errx(ERR_EXIT, "strtoll(%s,,) failed", argv[2]);
124
125 if (argc == 4)
126 {
127 skip2 = strtoll(argv[3], &ep, 0);
128 if (errno || ep == argv[3])
129 return errx(ERR_EXIT, "strtoll(%s,,) failed", argv[3]);
130 }
131 }
132
133 return cmp_file_and_file_ex(file1, skip1, file2, skip2, sflag, lflag, 0);
134}
135
136static int
137usage(FILE *fp)
138{
139 fprintf(fp, "usage: %s [-l | -s] file1 file2 [skip1 [skip2]]\n"
140 " or: %s --help\n"
141 " or: %s --version\n",
142 g_progname, g_progname, g_progname);
143 return ERR_EXIT;
144}
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