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/*	$OpenBSD: diff.h,v 1.2 2003/06/25 01:23:38 deraadt Exp $	*/

/*
 * Copyright (C) Caldera International Inc.  2001-2002.
 * 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 and documentation 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed or owned by Caldera
 *	International, Inc.
 * 4. Neither the name of Caldera International, Inc. nor the names of other
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * USE OF THE SOFTWARE PROVIDED FOR UNDER THIS LICENSE BY CALDERA
 * INTERNATIONAL, INC. 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 CALDERA INTERNATIONAL, INC. 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.
 */

/*	diff.h	4.7	85/08/16	*/

/*
 * diff - common declarations
 */

#include <stdio.h>
#include <ctype.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <sys/dir.h>
#include <signal.h>

/*
 * Output format options
 */
int	opt;

#define	D_NORMAL	0	/* Normal output */
#define	D_EDIT		-1	/* Editor script out */
#define	D_REVERSE	1	/* Reverse editor script */
#define	D_CONTEXT	2	/* Diff with context */
#define	D_IFDEF		3	/* Diff with merged #ifdef's */
#define	D_NREVERSE	4	/* Reverse ed script with numbered
				   lines and no trailing . */

int	tflag;			/* expand tabs on output */

/*
 * Algorithm related options
 */
int	hflag;			/* -h, use halfhearted DIFFH */
int	bflag;			/* ignore blanks in comparisons */
int	wflag;			/* totally ignore blanks in comparisons */
int	iflag;			/* ignore case in comparisons */

/*
 * Options on hierarchical diffs.
 */
int	lflag;			/* long output format with header */
int	rflag;			/* recursively trace directories */
int	sflag;			/* announce files which are same */
char	*start;			/* do file only if name >= this */

/*
 * Variables for -I D_IFDEF option.
 */
int	wantelses;		/* -E */
char	*ifdef1;		/* String for -1 */
char	*ifdef2;		/* String for -2 */
char	*endifname;		/* What we will print on next #endif */
int	inifdef;

/*
 * Variables for -c context option.
 */
int	context;		/* lines of context to be printed */

/*
 * State for exit status.
 */
int	status;
int	anychange;
char	*tempfile;		/* used when comparing against std input */

/*
 * Variables for diffdir.
 */
char	**diffargv;		/* option list to pass to recursive diffs */

/*
 * Input file names.
 * With diffdir, file1 and file2 are allocated BUFSIZ space,
 * and padded with a '/', and then efile0 and efile1 point after
 * the '/'.
 */
char	*file1, *file2, *efile1, *efile2;
struct	stat stb1, stb2;

char	*malloc(), *talloc(), *ralloc();
char	*savestr(), *splice(), *splicen();
char	*mktemp(), *copytemp(), *rindex();
int	done();

extern	char diffh[], diff[], pr[];