/*
 * $OpenBSD: common.h,v 1.26 2006/03/11 19:41:30 otto Exp $
 * $DragonFly: src/usr.bin/patch/common.h,v 1.5 2008/08/10 23:50:12 joerg Exp $
 * $NetBSD: common.h,v 1.3 2009/06/05 20:00:26 joerg Exp $
 */

/*
 * patch - a program to apply diffs to original files
 * 
 * Copyright 1986, Larry Wall
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following condition is met:
 * 1. Redistributions of source code must retain the above copyright notice,
 * this condition and the following disclaimer.
 * 
 * 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.
 * 
 * -C option added in 1998, original code by Marc Espie, based on FreeBSD
 * behaviour
 */

#include <sys/types.h>

#include <nbcompat/stdbool.h>
#if HAVE_STDINT_H
#include <stdint.h>
#endif

#ifndef SIZE_MAX
#define	SIZE_MAX	((size_t)-1)
#endif

#define DEBUGGING

/* constants */

#define MAXHUNKSIZE 100000	/* is this enough lines? */
#define INITHUNKMAX 125		/* initial dynamic allocation size */
#define MAXLINELEN 8192
#define BUFFERSIZE 1024

#define SCCSPREFIX "s."
#define GET "get -e %s"
#define SCCSDIFF "get -p %s | diff - %s >/dev/null"

#define RCSSUFFIX ",v"
#define CHECKOUT "co -l %s"
#define RCSDIFF "rcsdiff %s > /dev/null"

#define ORIGEXT ".orig"
#define REJEXT ".rej"

/* handy definitions */

#define strNE(s1,s2) (strcmp(s1, s2))
#define strEQ(s1,s2) (!strcmp(s1, s2))
#define strnNE(s1,s2,l) (strncmp(s1, s2, l))
#define strnEQ(s1,s2,l) (!strncmp(s1, s2, l))

/* typedefs */

typedef long    LINENUM;	/* must be signed */

/* globals */

extern mode_t	filemode;

extern char	buf[MAXLINELEN];/* general purpose buffer */
extern size_t	buf_len;

extern bool	using_plan_a;	/* try to keep everything in memory */
extern bool	out_of_mem;	/* ran out of memory in plan a */

#define MAXFILEC 2

extern char	*filearg[MAXFILEC];
extern bool	ok_to_create_file;
extern char	*outname;
extern char	*origprae;

extern char	*TMPOUTNAME;
extern char	*TMPINNAME;
extern char	*TMPREJNAME;
extern char	*TMPPATNAME;
extern bool	toutkeep;
extern bool	trejkeep;

#ifdef DEBUGGING
extern int	debug;
#endif

extern bool	force;
extern bool	batch;
extern bool	verbose;
extern bool	reverse;
extern bool	noreverse;
extern bool	skip_rest_of_patch;
extern int	strippath;
extern bool	canonicalize;
/* TRUE if -C was specified on command line.  */
extern bool	check_only;
extern bool	warn_on_invalid_line;
extern bool	last_line_missing_eol;


#define CONTEXT_DIFF 1
#define NORMAL_DIFF 2
#define ED_DIFF 3
#define NEW_CONTEXT_DIFF 4
#define UNI_DIFF 5

extern int	diff_type;
extern char	*revision;	/* prerequisite revision, if any */
extern LINENUM	input_lines;	/* how long is input file in lines */

extern int	posix;