1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
|
/* $OpenBSD: def.h,v 1.6 1997/07/14 00:24:26 millert Exp $ */
/* $NetBSD: def.h,v 1.9 1996/12/28 07:11:00 tls Exp $ */
/*
* Copyright (c) 1980, 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*
* @(#)def.h 8.4 (Berkeley) 4/20/95
* $OpenBSD: def.h,v 1.6 1997/07/14 00:24:26 millert Exp $
*/
/*
* Mail -- a mail program
*
* Author: Kurt Shoens (UCB) March 25, 1978
*/
#include <sys/param.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <ctype.h>
#include <err.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>
#include "pathnames.h"
#define APPEND /* New mail goes to end of mailbox */
#define ESCAPE '~' /* Default escape for sending */
#define NMLSIZE 1024 /* max names in a message list */
#define PATHSIZE MAXPATHLEN /* Size of pathnames throughout */
#define HSHSIZE 59 /* Hash size for aliases and vars */
#define LINESIZE BUFSIZ /* max readable line width */
#define STRINGSIZE ((unsigned) 128)/* Dynamic allocation units */
#define MAXARGC 1024 /* Maximum list of raw strings */
#define MAXEXP 25 /* Maximum expansion of aliases */
#define equal(a, b) (strcmp(a,b)==0)/* A nice function to string compare */
struct message {
short m_flag; /* flags, see below */
int m_offset; /* offset in block of message */
int m_block; /* block number of this message */
int m_size; /* Bytes in the message */
int m_lines; /* Lines in the message */
};
/*
* flag bits.
*/
#define MUSED (1<<0) /* entry is used, but this bit isn't */
#define MDELETED (1<<1) /* entry has been deleted */
#define MSAVED (1<<2) /* entry has been saved */
#define MTOUCH (1<<3) /* entry has been noticed */
#define MPRESERVE (1<<4) /* keep entry in sys mailbox */
#define MMARK (1<<5) /* message is marked! */
#define MODIFY (1<<6) /* message has been modified */
#define MNEW (1<<7) /* message has never been seen */
#define MREAD (1<<8) /* message has been read sometime. */
#define MSTATUS (1<<9) /* message status has changed */
#define MBOX (1<<10) /* Send this to mbox, regardless */
/*
* Given a file address, determine the block number it represents.
*/
#define blockof(off) ((int) ((off) / 4096))
#define offsetof(off) ((int) ((off) % 4096))
#define positionof(block, offset) ((off_t)(block) * 4096 + (offset))
/*
* Format of the command description table.
* The actual table is declared and initialized
* in lex.c
*/
struct cmd {
char *c_name; /* Name of command */
int (*c_func) __P((void *));/* Implementor of the command */
short c_argtype; /* Type of arglist (see below) */
short c_msgflag; /* Required flags of messages */
short c_msgmask; /* Relevant flags of messages */
};
/* Yechh, can't initialize unions */
#define c_minargs c_msgflag /* Minimum argcount for RAWLIST */
#define c_maxargs c_msgmask /* Max argcount for RAWLIST */
/*
* Argument types.
*/
#define MSGLIST 0 /* Message list type */
#define STRLIST 1 /* A pure string */
#define RAWLIST 2 /* Shell string list */
#define NOLIST 3 /* Just plain 0 */
#define NDMLIST 4 /* Message list, no defaults */
#define P 040 /* Autoprint dot after command */
#define I 0100 /* Interactive command bit */
#define M 0200 /* Legal from send mode bit */
#define W 0400 /* Illegal when read only bit */
#define F 01000 /* Is a conditional command */
#define T 02000 /* Is a transparent command */
#define R 04000 /* Cannot be called from collect */
/*
* Oft-used mask values
*/
#define MMNORM (MDELETED|MSAVED)/* Look at both save and delete bits */
#define MMNDEL MDELETED /* Look only at deleted bit */
/*
* Structure used to return a break down of a head
* line (hats off to Bill Joy!)
*/
struct headline {
char *l_from; /* The name of the sender */
char *l_tty; /* His tty string (if any) */
char *l_date; /* The entire date string */
};
#define GTO 1 /* Grab To: line */
#define GSUBJECT 2 /* Likewise, Subject: line */
#define GCC 4 /* And the Cc: line */
#define GBCC 8 /* And also the Bcc: line */
#define GMASK (GTO|GSUBJECT|GCC|GBCC)
/* Mask of places from whence */
#define GNL 16 /* Print blank line after */
#define GDEL 32 /* Entity removed from list */
#define GCOMMA 64 /* detract puts in commas */
/*
* Structure used to pass about the current
* state of the user-typed message header.
*/
struct header {
struct name *h_to; /* Dynamic "To:" string */
char *h_subject; /* Subject string */
struct name *h_cc; /* Carbon copies string */
struct name *h_bcc; /* Blind carbon copies */
struct name *h_smopts; /* Sendmail options */
};
/*
* Structure of namelist nodes used in processing
* the recipients of mail and aliases and all that
* kind of stuff.
*/
struct name {
struct name *n_flink; /* Forward link in list. */
struct name *n_blink; /* Backward list link */
short n_type; /* From which list it came */
char *n_name; /* This fella's name */
};
/*
* Structure of a variable node. All variables are
* kept on a singly-linked list of these, rooted by
* "variables"
*/
struct var {
struct var *v_link; /* Forward link to next variable */
char *v_name; /* The variable's name */
char *v_value; /* And it's current value */
};
struct group {
struct group *ge_link; /* Next person in this group */
char *ge_name; /* This person's user name */
};
struct grouphead {
struct grouphead *g_link; /* Next grouphead in list */
char *g_name; /* Name of this group */
struct group *g_list; /* Users in group. */
};
#define NIL ((struct name *) 0) /* The nil pointer for namelists */
#define NONE ((struct cmd *) 0) /* The nil pointer to command tab */
#define NOVAR ((struct var *) 0) /* The nil pointer to variables */
#define NOGRP ((struct grouphead *) 0)/* The nil grouphead pointer */
#define NOGE ((struct group *) 0) /* The nil group pointer */
/*
* Structure of the hash table of ignored header fields
*/
struct ignoretab {
int i_count; /* Number of entries */
struct ignore {
struct ignore *i_link; /* Next ignored field in bucket */
char *i_field; /* This ignored field */
} *i_head[HSHSIZE];
};
/*
* Token values returned by the scanner used for argument lists.
* Also, sizes of scanner-related things.
*/
#define TEOL 0 /* End of the command line */
#define TNUMBER 1 /* A message number */
#define TDASH 2 /* A simple dash */
#define TSTRING 3 /* A string (possibly containing -) */
#define TDOT 4 /* A "." */
#define TUP 5 /* An "^" */
#define TDOLLAR 6 /* A "$" */
#define TSTAR 7 /* A "*" */
#define TOPEN 8 /* An '(' */
#define TCLOSE 9 /* A ')' */
#define TPLUS 10 /* A '+' */
#define TERROR 11 /* A lexical error */
#define REGDEP 2 /* Maximum regret depth. */
#define STRINGLEN 1024 /* Maximum length of string token */
/*
* Constants for conditional commands. These describe whether
* we should be executing stuff or not.
*/
#define CANY 0 /* Execute in send or receive mode */
#define CRCV 1 /* Execute in receive mode only */
#define CSEND 2 /* Execute in send mode only */
/*
* Kludges to handle the change from setexit / reset to sigsetjmp / siglongjmp
*/
#define setexit() sigsetjmp(srbuf, 1)
#define reset(x) siglongjmp(srbuf, x)
/*
* Truncate a file to the last character written. This is
* useful just before closing an old file that was opened
* for read/write.
*/
#define trunc(stream) { \
(void)fflush(stream); \
(void)ftruncate(fileno(stream), (off_t)ftell(stream)); \
}
|
