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defs.h revision 1.14
      1 /*	$NetBSD: defs.h,v 1.14 2002/06/14 01:18:54 wiz Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1983, 1993
      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. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  *
     35  *	from: @(#)defs.h	8.1 (Berkeley) 6/9/93
     36  */
     37 
     38 #include <sys/param.h>
     39 #include <sys/stat.h>
     40 #include <sys/time.h>
     41 #include <sys/file.h>
     42 
     43 #include <netinet/in.h>
     44 
     45 #include <stdio.h>
     46 #include <ctype.h>
     47 #include <unistd.h>
     48 #include <string.h>
     49 #include <stdlib.h>
     50 #include <dirent.h>
     51 #include <time.h>
     52 
     53 #include "pathnames.h"
     54 
     55 /*
     56  * The version number should be changed whenever the protocol changes.
     57  */
     58 #define VERSION	 3
     59 
     60 	/* defines for yacc */
     61 #define EQUAL	1
     62 #define LP	2
     63 #define RP	3
     64 #define SM	4
     65 #define ARROW	5
     66 #define COLON	6
     67 #define DCOLON	7
     68 #define NAME	8
     69 #define STRING	9
     70 #define INSTALL	10
     71 #define NOTIFY	11
     72 #define EXCEPT	12
     73 #define PATTERN	13
     74 #define SPECIAL	14
     75 #define OPTION	15
     76 
     77 	/* lexical definitions */
     78 #define	QUOTE 	0200		/* used internally for quoted characters */
     79 #define	TRIM	0177		/* Mask to strip quote bit */
     80 
     81 	/* table sizes */
     82 #define HASHSIZE	1021
     83 #define INMAX	3500
     84 
     85 	/* option flags */
     86 #define VERIFY	0x1
     87 #define WHOLE	0x2
     88 #define YOUNGER	0x4
     89 #define COMPARE	0x8
     90 #define REMOVE	0x10
     91 #define FOLLOW	0x20
     92 #define IGNLNKS	0x40
     93 
     94 	/* expand type definitions */
     95 #define E_VARS	0x1
     96 #define E_SHELL	0x2
     97 #define E_TILDE	0x4
     98 #define E_ALL	0x7
     99 
    100 	/* actions for lookup() */
    101 #define LOOKUP	0
    102 #define INSERT	1
    103 #define REPLACE	2
    104 
    105 #define ALLOC(x) (struct x *) malloc(sizeof(struct x))
    106 
    107 struct namelist {	/* for making lists of strings */
    108 	char	*n_name;
    109 	struct	namelist *n_next;
    110 };
    111 
    112 struct subcmd {
    113 	short	sc_type;	/* type - INSTALL,NOTIFY,EXCEPT,SPECIAL */
    114 	short	sc_options;
    115 	char	*sc_name;
    116 	struct	namelist *sc_args;
    117 	struct	subcmd *sc_next;
    118 };
    119 
    120 struct cmd {
    121 	int	c_type;		/* type - ARROW,DCOLON */
    122 	char	*c_name;	/* hostname or time stamp file name */
    123 	char	*c_label;	/* label for partial update */
    124 	struct	namelist *c_files;
    125 	struct	subcmd *c_cmds;
    126 	struct	cmd *c_next;
    127 };
    128 
    129 struct linkbuf {
    130 	ino_t	inum;
    131 	dev_t	devnum;
    132 	int	count;
    133 	char	pathname[BUFSIZ];
    134 	char	target[BUFSIZ];
    135 	struct	linkbuf *nextp;
    136 };
    137 
    138 extern int debug;		/* debugging flag */
    139 extern int nflag;		/* NOP flag, don't execute commands */
    140 extern int qflag;		/* Quiet. don't print messages */
    141 extern int options;		/* global options */
    142 
    143 extern int nerrs;		/* number of errors seen */
    144 extern int rem;			/* remote file descriptor */
    145 extern int iamremote;		/* acting as remote server */
    146 extern char tempfile[];		/* file name for logging changes */
    147 extern struct linkbuf *ihead;	/* list of files with more than one link */
    148 extern char host[];		/* host name of master copy */
    149 extern char buf[BUFSIZ];	/* general purpose buffer */
    150 
    151 extern struct passwd *pw;	/* pointer to static area used by getpwent */
    152 extern struct group *gr;	/* pointer to static area used by getgrent */
    153 extern uid_t userid;		/* user's user ID */
    154 extern gid_t groupid;		/* user's group ID */
    155 
    156 int	 any(int, char *);
    157 char	*colon(char *);
    158 void	 cleanup(int);
    159 void	 define(char *);
    160 void	 docmds(char **, int, char **);
    161 void	 error(const char *, ...)
    162      __attribute__((__format__(__printf__, 1, 2))) ;
    163 int	 except(char *);
    164 struct namelist *
    165 	 expand(struct namelist *, int);
    166 char	*exptilde(char [], char *);
    167 void	 fatal(const char *, ...)
    168      __attribute__((__format__(__printf__, 1, 2)));
    169 int	 inlist(struct namelist *, char *);
    170 void	 insert(char *,
    171 	    struct namelist *, struct namelist *, struct subcmd *);
    172 void	 install(char *, char *, int, int);
    173 void	 log(FILE *, const char *, ...)
    174      __attribute__((__format__(__printf__, 2, 3)));
    175 struct namelist *
    176 	 lookup(char *, int, struct namelist *);
    177 void	 lostconn(int);
    178 struct namelist *
    179 	 makenl(char *);
    180 struct subcmd *
    181 	 makesubcmd(int);
    182 void	 prnames(struct namelist *);
    183 void	 server(void);
    184 void	 yyerror(char *);
    185 int	 yyparse(void);
    186