Annotation of src/usr.bin/mail/def.h, Revision 1.8
1.8 ! millert 1: /* $OpenBSD: def.h,v 1.7 2001/01/16 05:36:08 millert Exp $ */
1.5 millert 2: /* $NetBSD: def.h,v 1.9 1996/12/28 07:11:00 tls Exp $ */
1.1 deraadt 3: /*
4: * Copyright (c) 1980, 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: *
1.5 millert 35: * @(#)def.h 8.4 (Berkeley) 4/20/95
1.8 ! millert 36: * $OpenBSD: def.h,v 1.7 2001/01/16 05:36:08 millert Exp $
1.1 deraadt 37: */
38:
39: /*
40: * Mail -- a mail program
41: *
42: * Author: Kurt Shoens (UCB) March 25, 1978
43: */
44:
1.7 millert 45: #ifndef MAIL_DEF_H
46: #define MAIL_DEF_H
47:
1.1 deraadt 48: #include <sys/param.h>
49: #include <sys/stat.h>
50: #include <sys/time.h>
51:
1.5 millert 52: #include <ctype.h>
53: #include <err.h>
1.1 deraadt 54: #include <signal.h>
1.5 millert 55: #include <stdio.h>
56: #include <stdlib.h>
57: #include <string.h>
1.1 deraadt 58: #include <termios.h>
59: #include <unistd.h>
60: #include "pathnames.h"
61:
62: #define APPEND /* New mail goes to end of mailbox */
63:
64: #define ESCAPE '~' /* Default escape for sending */
65: #define NMLSIZE 1024 /* max names in a message list */
66: #define PATHSIZE MAXPATHLEN /* Size of pathnames throughout */
67: #define HSHSIZE 59 /* Hash size for aliases and vars */
68: #define LINESIZE BUFSIZ /* max readable line width */
69: #define STRINGSIZE ((unsigned) 128)/* Dynamic allocation units */
70: #define MAXARGC 1024 /* Maximum list of raw strings */
71: #define MAXEXP 25 /* Maximum expansion of aliases */
72:
73: #define equal(a, b) (strcmp(a,b)==0)/* A nice function to string compare */
74:
75: struct message {
76: short m_flag; /* flags, see below */
1.5 millert 77: int m_offset; /* offset in block of message */
1.4 millert 78: int m_block; /* block number of this message */
79: int m_size; /* Bytes in the message */
80: int m_lines; /* Lines in the message */
1.1 deraadt 81: };
82:
83: /*
84: * flag bits.
85: */
86:
87: #define MUSED (1<<0) /* entry is used, but this bit isn't */
88: #define MDELETED (1<<1) /* entry has been deleted */
89: #define MSAVED (1<<2) /* entry has been saved */
90: #define MTOUCH (1<<3) /* entry has been noticed */
91: #define MPRESERVE (1<<4) /* keep entry in sys mailbox */
92: #define MMARK (1<<5) /* message is marked! */
93: #define MODIFY (1<<6) /* message has been modified */
94: #define MNEW (1<<7) /* message has never been seen */
95: #define MREAD (1<<8) /* message has been read sometime. */
96: #define MSTATUS (1<<9) /* message status has changed */
97: #define MBOX (1<<10) /* Send this to mbox, regardless */
98:
99: /*
100: * Given a file address, determine the block number it represents.
101: */
102: #define blockof(off) ((int) ((off) / 4096))
103: #define offsetof(off) ((int) ((off) % 4096))
104: #define positionof(block, offset) ((off_t)(block) * 4096 + (offset))
105:
106: /*
107: * Format of the command description table.
108: * The actual table is declared and initialized
109: * in lex.c
110: */
111: struct cmd {
112: char *c_name; /* Name of command */
1.7 millert 113: union {
114: int (*c_func0)();
115: int (*c_func1) __P((void *));
116: int (*c_func2) __P((void *, void *));
117: } cfunc; /* Implementor of the command */
118: #define c_func cfunc.c_func1
119: #define c_func2 cfunc.c_func2
1.1 deraadt 120: short c_argtype; /* Type of arglist (see below) */
121: short c_msgflag; /* Required flags of messages */
122: short c_msgmask; /* Relevant flags of messages */
123: };
124:
125: /* Yechh, can't initialize unions */
126:
127: #define c_minargs c_msgflag /* Minimum argcount for RAWLIST */
128: #define c_maxargs c_msgmask /* Max argcount for RAWLIST */
129:
130: /*
131: * Argument types.
132: */
133:
1.7 millert 134: #define MSGLIST 0x0001 /* Message list type */
135: #define STRLIST 0x0002 /* A pure string */
136: #define RAWLIST 0x0004 /* Shell string list */
137: #define NOLIST 0x0008 /* Just plain 0 */
138: #define NDMLIST 0x0010 /* Message list, no defaults */
139:
140: #define P 0x0020 /* Autoprint dot after command */
141: #define I 0x0040 /* Interactive command bit */
142: #define M 0x0080 /* Legal from send mode bit */
143: #define W 0x0100 /* Illegal when read only bit */
144: #define F 0x0200 /* Is a conditional command */
145: #define T 0x0400 /* Is a transparent command */
146: #define R 0x0800 /* Cannot be called from collect */
1.1 deraadt 147:
148: /*
149: * Oft-used mask values
150: */
151:
152: #define MMNORM (MDELETED|MSAVED)/* Look at both save and delete bits */
153: #define MMNDEL MDELETED /* Look only at deleted bit */
154:
155: /*
156: * Structure used to return a break down of a head
157: * line (hats off to Bill Joy!)
158: */
159:
160: struct headline {
161: char *l_from; /* The name of the sender */
162: char *l_tty; /* His tty string (if any) */
163: char *l_date; /* The entire date string */
164: };
165:
166: #define GTO 1 /* Grab To: line */
167: #define GSUBJECT 2 /* Likewise, Subject: line */
168: #define GCC 4 /* And the Cc: line */
169: #define GBCC 8 /* And also the Bcc: line */
170: #define GMASK (GTO|GSUBJECT|GCC|GBCC)
171: /* Mask of places from whence */
172:
173: #define GNL 16 /* Print blank line after */
174: #define GDEL 32 /* Entity removed from list */
175: #define GCOMMA 64 /* detract puts in commas */
176:
177: /*
178: * Structure used to pass about the current
179: * state of the user-typed message header.
180: */
181:
182: struct header {
183: struct name *h_to; /* Dynamic "To:" string */
184: char *h_subject; /* Subject string */
185: struct name *h_cc; /* Carbon copies string */
186: struct name *h_bcc; /* Blind carbon copies */
187: struct name *h_smopts; /* Sendmail options */
188: };
189:
190: /*
191: * Structure of namelist nodes used in processing
192: * the recipients of mail and aliases and all that
193: * kind of stuff.
194: */
195:
196: struct name {
197: struct name *n_flink; /* Forward link in list. */
198: struct name *n_blink; /* Backward list link */
199: short n_type; /* From which list it came */
200: char *n_name; /* This fella's name */
201: };
202:
203: /*
204: * Structure of a variable node. All variables are
205: * kept on a singly-linked list of these, rooted by
206: * "variables"
207: */
208:
209: struct var {
210: struct var *v_link; /* Forward link to next variable */
211: char *v_name; /* The variable's name */
212: char *v_value; /* And it's current value */
213: };
214:
215: struct group {
216: struct group *ge_link; /* Next person in this group */
217: char *ge_name; /* This person's user name */
218: };
219:
220: struct grouphead {
221: struct grouphead *g_link; /* Next grouphead in list */
222: char *g_name; /* Name of this group */
223: struct group *g_list; /* Users in group. */
224: };
225:
226: #define NIL ((struct name *) 0) /* The nil pointer for namelists */
227: #define NONE ((struct cmd *) 0) /* The nil pointer to command tab */
228: #define NOVAR ((struct var *) 0) /* The nil pointer to variables */
229: #define NOGRP ((struct grouphead *) 0)/* The nil grouphead pointer */
230: #define NOGE ((struct group *) 0) /* The nil group pointer */
231:
232: /*
233: * Structure of the hash table of ignored header fields
234: */
235: struct ignoretab {
236: int i_count; /* Number of entries */
237: struct ignore {
238: struct ignore *i_link; /* Next ignored field in bucket */
239: char *i_field; /* This ignored field */
240: } *i_head[HSHSIZE];
241: };
242:
243: /*
244: * Token values returned by the scanner used for argument lists.
245: * Also, sizes of scanner-related things.
246: */
247:
248: #define TEOL 0 /* End of the command line */
249: #define TNUMBER 1 /* A message number */
250: #define TDASH 2 /* A simple dash */
251: #define TSTRING 3 /* A string (possibly containing -) */
252: #define TDOT 4 /* A "." */
253: #define TUP 5 /* An "^" */
254: #define TDOLLAR 6 /* A "$" */
255: #define TSTAR 7 /* A "*" */
256: #define TOPEN 8 /* An '(' */
257: #define TCLOSE 9 /* A ')' */
258: #define TPLUS 10 /* A '+' */
259: #define TERROR 11 /* A lexical error */
260:
261: #define REGDEP 2 /* Maximum regret depth. */
262: #define STRINGLEN 1024 /* Maximum length of string token */
263:
264: /*
265: * Constants for conditional commands. These describe whether
266: * we should be executing stuff or not.
267: */
268:
269: #define CANY 0 /* Execute in send or receive mode */
270: #define CRCV 1 /* Execute in receive mode only */
271: #define CSEND 2 /* Execute in send mode only */
272:
273: /*
274: * Truncate a file to the last character written. This is
275: * useful just before closing an old file that was opened
276: * for read/write.
277: */
278: #define trunc(stream) { \
279: (void)fflush(stream); \
280: (void)ftruncate(fileno(stream), (off_t)ftell(stream)); \
281: }
1.7 millert 282:
283: #endif /* MAIL_DEF_H */
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