def.h revision 1.6 1 1.1 cgd /*
2 1.6 deraadt * Copyright (c) 1980, 1993
3 1.6 deraadt * The Regents of the University of California. All rights reserved.
4 1.1 cgd *
5 1.1 cgd * Redistribution and use in source and binary forms, with or without
6 1.1 cgd * modification, are permitted provided that the following conditions
7 1.1 cgd * are met:
8 1.1 cgd * 1. Redistributions of source code must retain the above copyright
9 1.1 cgd * notice, this list of conditions and the following disclaimer.
10 1.1 cgd * 2. Redistributions in binary form must reproduce the above copyright
11 1.1 cgd * notice, this list of conditions and the following disclaimer in the
12 1.1 cgd * documentation and/or other materials provided with the distribution.
13 1.1 cgd * 3. All advertising materials mentioning features or use of this software
14 1.1 cgd * must display the following acknowledgement:
15 1.1 cgd * This product includes software developed by the University of
16 1.1 cgd * California, Berkeley and its contributors.
17 1.1 cgd * 4. Neither the name of the University nor the names of its contributors
18 1.1 cgd * may be used to endorse or promote products derived from this software
19 1.1 cgd * without specific prior written permission.
20 1.1 cgd *
21 1.1 cgd * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 1.1 cgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 1.1 cgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 1.1 cgd * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 1.1 cgd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 1.1 cgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 1.1 cgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 1.1 cgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 1.1 cgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 1.1 cgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 1.1 cgd * SUCH DAMAGE.
32 1.1 cgd *
33 1.6 deraadt * from: @(#)def.h 8.2 (Berkeley) 3/21/94
34 1.6 deraadt * $Id: def.h,v 1.6 1994/06/29 05:09:16 deraadt Exp $
35 1.1 cgd */
36 1.1 cgd
37 1.1 cgd /*
38 1.1 cgd * Mail -- a mail program
39 1.1 cgd *
40 1.1 cgd * Author: Kurt Shoens (UCB) March 25, 1978
41 1.1 cgd */
42 1.1 cgd
43 1.6 deraadt #include <sys/param.h>
44 1.6 deraadt #include <sys/stat.h>
45 1.6 deraadt #include <sys/time.h>
46 1.6 deraadt
47 1.6 deraadt #include <signal.h>
48 1.6 deraadt #include <sgtty.h>
49 1.6 deraadt #include <unistd.h>
50 1.6 deraadt #include <stdlib.h>
51 1.6 deraadt #include <stdio.h>
52 1.6 deraadt #include <ctype.h>
53 1.6 deraadt #include <string.h>
54 1.6 deraadt #include "pathnames.h"
55 1.6 deraadt
56 1.1 cgd #define APPEND /* New mail goes to end of mailbox */
57 1.1 cgd
58 1.1 cgd #define ESCAPE '~' /* Default escape for sending */
59 1.1 cgd #define NMLSIZE 1024 /* max names in a message list */
60 1.1 cgd #define PATHSIZE MAXPATHLEN /* Size of pathnames throughout */
61 1.1 cgd #define HSHSIZE 59 /* Hash size for aliases and vars */
62 1.1 cgd #define LINESIZE BUFSIZ /* max readable line width */
63 1.1 cgd #define STRINGSIZE ((unsigned) 128)/* Dynamic allocation units */
64 1.1 cgd #define MAXARGC 1024 /* Maximum list of raw strings */
65 1.1 cgd #define NOSTR ((char *) 0) /* Null string pointer */
66 1.1 cgd #define MAXEXP 25 /* Maximum expansion of aliases */
67 1.1 cgd
68 1.1 cgd #define equal(a, b) (strcmp(a,b)==0)/* A nice function to string compare */
69 1.1 cgd
70 1.1 cgd struct message {
71 1.1 cgd short m_flag; /* flags, see below */
72 1.1 cgd short m_block; /* block number of this message */
73 1.1 cgd short m_offset; /* offset in block of message */
74 1.1 cgd long m_size; /* Bytes in the message */
75 1.1 cgd short m_lines; /* Lines in the message */
76 1.1 cgd };
77 1.1 cgd
78 1.1 cgd /*
79 1.1 cgd * flag bits.
80 1.1 cgd */
81 1.1 cgd
82 1.1 cgd #define MUSED (1<<0) /* entry is used, but this bit isn't */
83 1.1 cgd #define MDELETED (1<<1) /* entry has been deleted */
84 1.1 cgd #define MSAVED (1<<2) /* entry has been saved */
85 1.1 cgd #define MTOUCH (1<<3) /* entry has been noticed */
86 1.1 cgd #define MPRESERVE (1<<4) /* keep entry in sys mailbox */
87 1.1 cgd #define MMARK (1<<5) /* message is marked! */
88 1.1 cgd #define MODIFY (1<<6) /* message has been modified */
89 1.1 cgd #define MNEW (1<<7) /* message has never been seen */
90 1.1 cgd #define MREAD (1<<8) /* message has been read sometime. */
91 1.1 cgd #define MSTATUS (1<<9) /* message status has changed */
92 1.1 cgd #define MBOX (1<<10) /* Send this to mbox, regardless */
93 1.1 cgd
94 1.1 cgd /*
95 1.1 cgd * Given a file address, determine the block number it represents.
96 1.1 cgd */
97 1.1 cgd #define blockof(off) ((int) ((off) / 4096))
98 1.1 cgd #define offsetof(off) ((int) ((off) % 4096))
99 1.1 cgd #define positionof(block, offset) ((off_t)(block) * 4096 + (offset))
100 1.1 cgd
101 1.1 cgd /*
102 1.1 cgd * Format of the command description table.
103 1.1 cgd * The actual table is declared and initialized
104 1.1 cgd * in lex.c
105 1.1 cgd */
106 1.1 cgd struct cmd {
107 1.1 cgd char *c_name; /* Name of command */
108 1.1 cgd int (*c_func)(); /* Implementor of the command */
109 1.1 cgd short c_argtype; /* Type of arglist (see below) */
110 1.1 cgd short c_msgflag; /* Required flags of messages */
111 1.1 cgd short c_msgmask; /* Relevant flags of messages */
112 1.1 cgd };
113 1.1 cgd
114 1.1 cgd /* Yechh, can't initialize unions */
115 1.1 cgd
116 1.1 cgd #define c_minargs c_msgflag /* Minimum argcount for RAWLIST */
117 1.1 cgd #define c_maxargs c_msgmask /* Max argcount for RAWLIST */
118 1.1 cgd
119 1.1 cgd /*
120 1.1 cgd * Argument types.
121 1.1 cgd */
122 1.1 cgd
123 1.1 cgd #define MSGLIST 0 /* Message list type */
124 1.1 cgd #define STRLIST 1 /* A pure string */
125 1.1 cgd #define RAWLIST 2 /* Shell string list */
126 1.1 cgd #define NOLIST 3 /* Just plain 0 */
127 1.1 cgd #define NDMLIST 4 /* Message list, no defaults */
128 1.1 cgd
129 1.1 cgd #define P 040 /* Autoprint dot after command */
130 1.1 cgd #define I 0100 /* Interactive command bit */
131 1.1 cgd #define M 0200 /* Legal from send mode bit */
132 1.1 cgd #define W 0400 /* Illegal when read only bit */
133 1.1 cgd #define F 01000 /* Is a conditional command */
134 1.1 cgd #define T 02000 /* Is a transparent command */
135 1.1 cgd #define R 04000 /* Cannot be called from collect */
136 1.1 cgd
137 1.1 cgd /*
138 1.1 cgd * Oft-used mask values
139 1.1 cgd */
140 1.1 cgd
141 1.1 cgd #define MMNORM (MDELETED|MSAVED)/* Look at both save and delete bits */
142 1.1 cgd #define MMNDEL MDELETED /* Look only at deleted bit */
143 1.1 cgd
144 1.1 cgd /*
145 1.1 cgd * Structure used to return a break down of a head
146 1.1 cgd * line (hats off to Bill Joy!)
147 1.1 cgd */
148 1.1 cgd
149 1.1 cgd struct headline {
150 1.1 cgd char *l_from; /* The name of the sender */
151 1.1 cgd char *l_tty; /* His tty string (if any) */
152 1.1 cgd char *l_date; /* The entire date string */
153 1.1 cgd };
154 1.1 cgd
155 1.1 cgd #define GTO 1 /* Grab To: line */
156 1.1 cgd #define GSUBJECT 2 /* Likewise, Subject: line */
157 1.1 cgd #define GCC 4 /* And the Cc: line */
158 1.1 cgd #define GBCC 8 /* And also the Bcc: line */
159 1.1 cgd #define GMASK (GTO|GSUBJECT|GCC|GBCC)
160 1.1 cgd /* Mask of places from whence */
161 1.1 cgd
162 1.1 cgd #define GNL 16 /* Print blank line after */
163 1.1 cgd #define GDEL 32 /* Entity removed from list */
164 1.1 cgd #define GCOMMA 64 /* detract puts in commas */
165 1.1 cgd
166 1.1 cgd /*
167 1.1 cgd * Structure used to pass about the current
168 1.1 cgd * state of the user-typed message header.
169 1.1 cgd */
170 1.1 cgd
171 1.1 cgd struct header {
172 1.1 cgd struct name *h_to; /* Dynamic "To:" string */
173 1.1 cgd char *h_subject; /* Subject string */
174 1.1 cgd struct name *h_cc; /* Carbon copies string */
175 1.1 cgd struct name *h_bcc; /* Blind carbon copies */
176 1.1 cgd struct name *h_smopts; /* Sendmail options */
177 1.1 cgd };
178 1.1 cgd
179 1.1 cgd /*
180 1.1 cgd * Structure of namelist nodes used in processing
181 1.1 cgd * the recipients of mail and aliases and all that
182 1.1 cgd * kind of stuff.
183 1.1 cgd */
184 1.1 cgd
185 1.1 cgd struct name {
186 1.1 cgd struct name *n_flink; /* Forward link in list. */
187 1.1 cgd struct name *n_blink; /* Backward list link */
188 1.1 cgd short n_type; /* From which list it came */
189 1.1 cgd char *n_name; /* This fella's name */
190 1.1 cgd };
191 1.1 cgd
192 1.1 cgd /*
193 1.1 cgd * Structure of a variable node. All variables are
194 1.1 cgd * kept on a singly-linked list of these, rooted by
195 1.1 cgd * "variables"
196 1.1 cgd */
197 1.1 cgd
198 1.1 cgd struct var {
199 1.1 cgd struct var *v_link; /* Forward link to next variable */
200 1.1 cgd char *v_name; /* The variable's name */
201 1.1 cgd char *v_value; /* And it's current value */
202 1.1 cgd };
203 1.1 cgd
204 1.1 cgd struct group {
205 1.1 cgd struct group *ge_link; /* Next person in this group */
206 1.1 cgd char *ge_name; /* This person's user name */
207 1.1 cgd };
208 1.1 cgd
209 1.1 cgd struct grouphead {
210 1.1 cgd struct grouphead *g_link; /* Next grouphead in list */
211 1.1 cgd char *g_name; /* Name of this group */
212 1.1 cgd struct group *g_list; /* Users in group. */
213 1.1 cgd };
214 1.1 cgd
215 1.1 cgd #define NIL ((struct name *) 0) /* The nil pointer for namelists */
216 1.1 cgd #define NONE ((struct cmd *) 0) /* The nil pointer to command tab */
217 1.1 cgd #define NOVAR ((struct var *) 0) /* The nil pointer to variables */
218 1.1 cgd #define NOGRP ((struct grouphead *) 0)/* The nil grouphead pointer */
219 1.1 cgd #define NOGE ((struct group *) 0) /* The nil group pointer */
220 1.1 cgd
221 1.1 cgd /*
222 1.1 cgd * Structure of the hash table of ignored header fields
223 1.1 cgd */
224 1.1 cgd struct ignoretab {
225 1.1 cgd int i_count; /* Number of entries */
226 1.1 cgd struct ignore {
227 1.1 cgd struct ignore *i_link; /* Next ignored field in bucket */
228 1.1 cgd char *i_field; /* This ignored field */
229 1.1 cgd } *i_head[HSHSIZE];
230 1.1 cgd };
231 1.1 cgd
232 1.1 cgd /*
233 1.1 cgd * Token values returned by the scanner used for argument lists.
234 1.1 cgd * Also, sizes of scanner-related things.
235 1.1 cgd */
236 1.1 cgd
237 1.1 cgd #define TEOL 0 /* End of the command line */
238 1.1 cgd #define TNUMBER 1 /* A message number */
239 1.1 cgd #define TDASH 2 /* A simple dash */
240 1.1 cgd #define TSTRING 3 /* A string (possibly containing -) */
241 1.1 cgd #define TDOT 4 /* A "." */
242 1.1 cgd #define TUP 5 /* An "^" */
243 1.1 cgd #define TDOLLAR 6 /* A "$" */
244 1.1 cgd #define TSTAR 7 /* A "*" */
245 1.1 cgd #define TOPEN 8 /* An '(' */
246 1.1 cgd #define TCLOSE 9 /* A ')' */
247 1.1 cgd #define TPLUS 10 /* A '+' */
248 1.1 cgd #define TERROR 11 /* A lexical error */
249 1.1 cgd
250 1.1 cgd #define REGDEP 2 /* Maximum regret depth. */
251 1.1 cgd #define STRINGLEN 1024 /* Maximum length of string token */
252 1.1 cgd
253 1.1 cgd /*
254 1.1 cgd * Constants for conditional commands. These describe whether
255 1.1 cgd * we should be executing stuff or not.
256 1.1 cgd */
257 1.1 cgd
258 1.1 cgd #define CANY 0 /* Execute in send or receive mode */
259 1.1 cgd #define CRCV 1 /* Execute in receive mode only */
260 1.1 cgd #define CSEND 2 /* Execute in send mode only */
261 1.1 cgd
262 1.1 cgd /*
263 1.1 cgd * Kludges to handle the change from setexit / reset to setjmp / longjmp
264 1.1 cgd */
265 1.1 cgd
266 1.1 cgd #define setexit() setjmp(srbuf)
267 1.1 cgd #define reset(x) longjmp(srbuf, x)
268 1.1 cgd
269 1.1 cgd /*
270 1.1 cgd * Truncate a file to the last character written. This is
271 1.1 cgd * useful just before closing an old file that was opened
272 1.1 cgd * for read/write.
273 1.1 cgd */
274 1.6 deraadt #define trunc(stream) { \
275 1.6 deraadt (void)fflush(stream); \
276 1.6 deraadt (void)ftruncate(fileno(stream), (off_t)ftell(stream)); \
277 1.4 cgd }
278