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/* $NetBSD: cmp.c,v 1.15 2006/01/19 20:44:57 garbled Exp $ */
/*
* Copyright (c) 1987, 1990, 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.
*/
/*__COPYRIGHT("@(#) Copyright (c) 1987, 1990, 1993, 1994\n\
The Regents of the University of California. All rights reserved.\n");
static char sccsid[] = "@(#)cmp.c 8.3 (Berkeley) 4/2/94";
__RCSID("$NetBSD: cmp.c,v 1.15 2006/01/19 20:44:57 garbled Exp $"); */
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#define FAKES_NO_GETOPT_H /* bird */
#ifdef _MSC_VER
# define MSC_DO_64_BIT_IO /* for correct off_t */
#endif
#include "config.h"
#include <sys/types.h>
#include "err.h"
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <locale.h>
#ifndef _MSC_VER
# include <unistd.h>
#else
# include "mscfakes.h"
#endif
#include "getopt_r.h"
#include "kmkbuiltin.h"
#include "cmp_extern.h"
/*********************************************************************************************************************************
* Global Variables *
*********************************************************************************************************************************/
static const struct option long_options[] =
{
{ "help", no_argument, 0, 261 },
{ "version", no_argument, 0, 262 },
{ 0, 0, 0, 0 },
};
static int usage(PKMKBUILTINCTX pCtx, int is_err);
int
kmk_builtin_cmp(int argc, char **argv, char **envp, PKMKBUILTINCTX pCtx)
{
struct getopt_state_r gos;
off_t skip1 = 0, skip2 = 0;
int lflag = 0, sflag = 0;
int ch;
char *file1, *file2;
getopt_initialize_r(&gos, argc, argv, "ls", long_options, envp, pCtx);
while ((ch = getopt_long_r(&gos, NULL)) != -1)
{
switch (ch)
{
case 'l': /* print all differences */
lflag = 1;
break;
case 's': /* silent run */
sflag = 1;
break;
case 261:
usage(pCtx, 0);
return 0;
case 262:
return kbuild_version(argv[0]);
case '?':
default:
return usage(pCtx, 1);
}
}
argv += gos.optind;
argc -= gos.optind;
if (argc < 2 || argc > 4)
return usage(pCtx, 1);
file1 = argv[0];
file2 = argv[1];
if (argc > 2)
{
char *ep;
errno = 0;
skip1 = strtoll(argv[2], &ep, 0);
if (errno || ep == argv[2])
return errx(pCtx, ERR_EXIT, "strtoll(%s,,) failed", argv[2]);
if (argc == 4)
{
skip2 = strtoll(argv[3], &ep, 0);
if (errno || ep == argv[3])
return errx(pCtx, ERR_EXIT, "strtoll(%s,,) failed", argv[3]);
}
}
return cmp_file_and_file_ex(pCtx, file1, skip1, file2, skip2, sflag, lflag, 0);
}
static int
usage(PKMKBUILTINCTX pCtx, int is_err)
{
kmk_builtin_ctx_printf(pCtx, is_err,
"usage: %s [-l | -s] file1 file2 [skip1 [skip2]]\n"
" or: %s --help\n"
" or: %s --version\n",
pCtx->pszProgName, pCtx->pszProgName, pCtx->pszProgName);
return ERR_EXIT;
}
#ifdef KMK_BUILTIN_STANDALONE
int main(int argc, char **argv, char **envp)
{
KMKBUILTINCTX Ctx = { "kmk_cmp", NULL };
setlocale(LC_ALL, "");
return kmk_builtin_cmp(argc, argv, envp, &Ctx);
}
#endif
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