1 /*
2  * Copyright (c) 1983, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  *	@(#)defs.h	8.1 (Berkeley) 6/9/93
34  */
35 
36 #include <sys/param.h>
37 #include <sys/stat.h>
38 #include <sys/time.h>
39 #include <sys/file.h>
40 
41 #include <netinet/in.h>
42 
43 #include <dirent.h>
44 #include <errno.h>
45 #include <pwd.h>
46 #include <grp.h>
47 #include <stdio.h>
48 #include <ctype.h>
49 #include <unistd.h>
50 #include <string.h>
51 #include <stdlib.h>
52 #include "pathnames.h"
53 
54 /*
55  * The version number should be changed whenever the protocol changes.
56  */
57 #define VERSION	 3
58 
59 	/* defines for yacc */
60 #define EQUAL	1
61 #define LP	2
62 #define RP	3
63 #define SM	4
64 #define ARROW	5
65 #define COLON	6
66 #define DCOLON	7
67 #define NAME	8
68 #define STRING	9
69 #define INSTALL	10
70 #define NOTIFY	11
71 #define EXCEPT	12
72 #define PATTERN	13
73 #define SPECIAL	14
74 #define OPTION	15
75 
76 	/* lexical definitions */
77 #define	QUOTE 	0200		/* used internally for quoted characters */
78 #define	TRIM	0177		/* Mask to strip quote bit */
79 
80 	/* table sizes */
81 #define HASHSIZE	1021
82 #define INMAX	3500
83 
84 	/* option flags */
85 #define VERIFY	0x1
86 #define WHOLE	0x2
87 #define YOUNGER	0x4
88 #define COMPARE	0x8
89 #define REMOVE	0x10
90 #define FOLLOW	0x20
91 #define IGNLNKS	0x40
92 
93 	/* expand type definitions */
94 #define E_VARS	0x1
95 #define E_SHELL	0x2
96 #define E_TILDE	0x4
97 #define E_ALL	0x7
98 
99 	/* actions for lookup() */
100 #define LOOKUP	0
101 #define INSERT	1
102 #define REPLACE	2
103 
104 #define ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
105 
106 #define ALLOC(x) (struct x *) malloc(sizeof(struct x))
107 
108 /*
109  * RSH Time Out interval (in seconds).
110  * Should be long enough to allow rsh to even the slowest hosts.
111  */
112 #define RTIMEOUT	180
113 
114 
115 struct namelist {	/* for making lists of strings */
116 	char	*n_name;
117 	struct	namelist *n_next;
118 };
119 
120 struct subcmd {
121 	short	sc_type;	/* type - INSTALL,NOTIFY,EXCEPT,SPECIAL */
122 	short	sc_options;
123 	char	*sc_name;
124 	struct	namelist *sc_args;
125 	struct	subcmd *sc_next;
126 };
127 
128 struct cmd {
129 	int	c_type;		/* type - ARROW,DCOLON */
130 	char	*c_name;	/* hostname or time stamp file name */
131 	char	*c_label;	/* label for partial update */
132 	struct	namelist *c_files;
133 	struct	subcmd *c_cmds;
134 	struct	cmd *c_next;
135 };
136 
137 struct linkbuf {
138 	ino_t	inum;
139 	dev_t	devnum;
140 	int	count;
141 	char	pathname[BUFSIZ];
142 	char	src[BUFSIZ];
143 	char	target[BUFSIZ];
144 	struct	linkbuf *nextp;
145 };
146 
147 extern int debug;		/* debugging flag */
148 extern int nflag;		/* NOP flag, don't execute commands */
149 extern int qflag;		/* Quiet. don't print messages */
150 extern int options;		/* global options */
151 
152 extern int nerrs;		/* number of errors seen */
153 extern int rem;			/* remote file descriptor */
154 extern int iamremote;		/* acting as remote server */
155 extern char tempfile[];		/* file name for logging changes */
156 extern struct linkbuf *ihead;	/* list of files with more than one link */
157 extern struct passwd *pw;	/* pointer to static area used by getpwent */
158 extern struct group *gr;	/* pointer to static area used by getgrent */
159 extern char host[];		/* host name of master copy */
160 extern char buf[BUFSIZ];	/* general purpose buffer */
161 extern char target[BUFSIZ];	/* target/source directory name */
162 extern char *path_rsh;		/* rsh command to use */
163 
164 int	 any __P((int, char *));
165 char	*colon __P((char *));
166 void	 cleanup __P((int));
167 void	 define __P((char *));
168 void	 docmds __P((char **, int, char **));
169 void	 error __P((const char *, ...));
170 int	 except __P((char *));
171 struct namelist *
172 	 expand __P((struct namelist *, int));
173 char	*exptilde __P((char [], char *, int));
174 void	 fatal __P((const char *, ...));
175 int	 inlist __P((struct namelist *, char *));
176 void	 insert __P((char *,
177 	    struct namelist *, struct namelist *, struct subcmd *));
178 void	 install __P((char *, char *, int, int));
179 void	 log __P((FILE *, const char *, ...));
180 struct namelist *
181 	 lookup __P((char *, int, struct namelist *));
182 void	 lostconn __P((int));
183 struct namelist *
184 	 makenl __P((char *));
185 struct subcmd *
186 	 makesubcmd __P((int));
187 void	 prnames __P((struct namelist *));
188 void	 server __P((void));
189 void	 yyerror __P((char *));
190 int	 yyparse __P((void));
191 int	 rshrcmd __P((char **, u_short, char *, char *, char *, int *));
192