/*	$NetBSD: defs.h,v 1.19 2011/09/06 18:28:18 joerg Exp $	*/

/*
 * Copyright (c) 1983, 1993
 *	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.
 *
 *	from: @(#)defs.h	8.1 (Berkeley) 6/9/93
 */

#include <sys/param.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/file.h>

#include <netinet/in.h>

#include <stdio.h>
#include <ctype.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <dirent.h>
#include <time.h>

#include "pathnames.h"

/*
 * The version number should be changed whenever the protocol changes.
 */
#define VERSION	 3

	/* defines for yacc */
#define EQUAL	1
#define LP	2
#define RP	3
#define SM	4
#define ARROW	5
#define COLON	6
#define DCOLON	7
#define NAME	8
#define STRING	9
#define INSTALL	10
#define NOTIFY	11
#define EXCEPT	12
#define PATTERN	13
#define SPECIAL	14
#define OPTION	15

	/* lexical definitions */
#define	QUOTE 	0200		/* used internally for quoted characters */
#define	TRIM	0177		/* Mask to strip quote bit */

	/* table sizes */
#define HASHSIZE	1021
#define INMAX	3500

	/* option flags */
#define VERIFY	0x1
#define WHOLE	0x2
#define YOUNGER	0x4
#define COMPARE	0x8
#define REMOVE	0x10
#define FOLLOW	0x20
#define IGNLNKS	0x40

	/* expand type definitions */
#define E_VARS	0x1
#define E_SHELL	0x2
#define E_TILDE	0x4
#define E_ALL	0x7

	/* actions for lookup() */
#define LOOKUP	0
#define INSERT	1
#define REPLACE	2

#define ALLOC(x) (struct x *) malloc(sizeof(struct x))

struct namelist {	/* for making lists of strings */
	char	*n_name;
	struct	namelist *n_next;
};

struct subcmd {
	short	sc_type;	/* type - INSTALL,NOTIFY,EXCEPT,SPECIAL */
	short	sc_options;
	char	*sc_name;
	struct	namelist *sc_args;
	struct	subcmd *sc_next;
};

struct cmd {
	int	c_type;		/* type - ARROW,DCOLON */
	char	*c_name;	/* hostname or time stamp file name */
	char	*c_label;	/* label for partial update */
	struct	namelist *c_files;
	struct	subcmd *c_cmds;
	struct	cmd *c_next;
};

struct linkbuf {
	ino_t	inum;
	dev_t	devnum;
	int	count;
	char	pathname[BUFSIZ];
	char	target[BUFSIZ];
	struct	linkbuf *nextp;
};

extern int debug;		/* debugging flag */
extern int nflag;		/* NOP flag, don't execute commands */
extern int qflag;		/* Quiet. don't print messages */
extern int options;		/* global options */

extern int nerrs;		/* number of errors seen */
extern int rem;			/* remote file descriptor */
extern int iamremote;		/* acting as remote server */
extern char tempfile[];		/* file name for logging changes */
extern struct linkbuf *ihead;	/* list of files with more than one link */
extern char host[];		/* host name of master copy */
extern char buf[BUFSIZ];	/* general purpose buffer */

extern struct passwd *pw;	/* pointer to static area used by getpwent */
extern struct group *gr;	/* pointer to static area used by getgrent */
extern uid_t userid;		/* user's user ID */
extern gid_t groupid;		/* user's group ID */

int	 any(int, const char *);
char	*colon(char *);
void	 cleanup(int) __dead;
void	 define(char *);
void	 docmds(char **, int, char **);
void	 error(const char *, ...) __printflike(1, 2);
int	 except(char *);
struct namelist *
	 expand(struct namelist *, int);
char	*exptilde(char [], char *);
void	 fatal(const char *, ...) __printflike(1, 2);
int	 inlist(struct namelist *, char *);
void	 insert(char *,
	    struct namelist *, struct namelist *, struct subcmd *);
void	 install(char *, char *, int, int);
void	 dolog(FILE *, const char *, ...) __printflike(2, 3);
struct namelist *
	 lookup(char *, int, struct namelist *);
void	 lostconn(int) __dead;
struct namelist *
	 makenl(char *);
void	 freenl(struct namelist *);
struct subcmd *
	 makesubcmd(int);
void	 freesubcmd(struct subcmd *);
void	 prnames(struct namelist *);
void	 server(void);
void	 yyerror(const char *);
int	 yyparse(void);