1/* 2 * Copyright (c) 1980, 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 * @(#)def.h 8.4 (Berkeley) 4/20/95 34 * 35 * $FreeBSD: src/usr.bin/mail/def.h,v 1.8 2001/12/18 20:52:09 mikeh Exp $ 36 */ 37 38/* 39 * Mail -- a mail program 40 * 41 * Author: Kurt Shoens (UCB) March 25, 1978 42 */ 43 44#ifndef DEF_H 45#define DEF_H 46 47#include <sys/param.h> 48#include <sys/stat.h> 49 50#include <ctype.h> 51#include <err.h> 52#include <paths.h> 53#include <signal.h> 54#include <stdio.h> 55#include <stdlib.h> 56#include <string.h> 57#include <termios.h> 58#include <time.h> 59#include <unistd.h> 60 61#include "pathnames.h" 62 63#define APPEND /* New mail goes to end of mailbox */ 64 65#define ESCAPE '~' /* Default escape for sending */ 66#define NMLSIZE 1024 /* max names in a message list */ 67#define PATHSIZE MAXPATHLEN /* Size of pathnames throughout */ 68#define HSHSIZE 59 /* Hash size for aliases and vars */ 69#define LINESIZE BUFSIZ /* max readable line width */ 70#define STRINGSIZE ((unsigned)128) /* Dynamic allocation units */ 71#define MAXARGC 1024 /* Maximum list of raw strings */ 72#define MAXEXP 25 /* Maximum expansion of aliases */ 73 74#define equal(a, b) (strcmp(a,b)==0)/* A nice function to string compare */ 75 76struct message { 77 short m_flag; /* flags, see below */ 78 short m_offset; /* offset in block of message */ 79 long m_block; /* block number of this message */ 80 long m_size; /* Bytes in the message */ 81 long m_lines; /* Lines in the message */ 82}; 83 84/* 85 * flag bits. 86 */ 87 88#define MUSED (1<<0) /* entry is used, but this bit isn't */ 89#define MDELETED (1<<1) /* entry has been deleted */ 90#define MSAVED (1<<2) /* entry has been saved */ 91#define MTOUCH (1<<3) /* entry has been noticed */ 92#define MPRESERVE (1<<4) /* keep entry in sys mailbox */ 93#define MMARK (1<<5) /* message is marked! */ 94#define MODIFY (1<<6) /* message has been modified */ 95#define MNEW (1<<7) /* message has never been seen */ 96#define MREAD (1<<8) /* message has been read sometime. */ 97#define MSTATUS (1<<9) /* message status has changed */ 98#define MBOX (1<<10) /* Send this to mbox, regardless */ 99 100/* 101 * Given a file address, determine the block number it represents. 102 */ 103#define blockof(off) ((int)((off) / 4096)) 104#define boffsetof(off) ((int)((off) % 4096)) 105#define positionof(block, offset) ((off_t)(block) * 4096 + (offset)) 106 107/* 108 * Format of the command description table. 109 * The actual table is declared and initialized 110 * in lex.c 111 */ 112struct cmd { 113 const char *c_name; /* Name of command */ 114 int (*c_func)(); /* Implementor of the command */ 115 short c_argtype; /* Type of arglist (see below) */ 116 short c_msgflag; /* Required flags of messages */ 117 short c_msgmask; /* Relevant flags of messages */ 118}; 119 120/* Yechh, can't initialize unions */ 121 122#define c_minargs c_msgflag /* Minimum argcount for RAWLIST */ 123#define c_maxargs c_msgmask /* Max argcount for RAWLIST */ 124 125/* 126 * Argument types. 127 */ 128 129#define MSGLIST 0 /* Message list type */ 130#define STRLIST 1 /* A pure string */ 131#define RAWLIST 2 /* Shell string list */ 132#define NOLIST 3 /* Just plain 0 */ 133#define NDMLIST 4 /* Message list, no defaults */ 134 135#define P 040 /* Autoprint dot after command */ 136#define I 0100 /* Interactive command bit */ 137#define M 0200 /* Legal from send mode bit */ 138#define W 0400 /* Illegal when read only bit */ 139#define F 01000 /* Is a conditional command */ 140#define T 02000 /* Is a transparent command */ 141#define R 04000 /* Cannot be called from collect */ 142 143/* 144 * Oft-used mask values 145 */ 146 147#define MMNORM (MDELETED|MSAVED)/* Look at both save and delete bits */ 148#define MMNDEL MDELETED /* Look only at deleted bit */ 149 150/* 151 * Structure used to return a break down of a head 152 * line (hats off to Bill Joy!) 153 */ 154 155struct headline { 156 char *l_from; /* The name of the sender */ 157 char *l_tty; /* His tty string (if any) */ 158 char *l_date; /* The entire date string */ 159}; 160 161#define GTO 1 /* Grab To: line */ 162#define GSUBJECT 2 /* Likewise, Subject: line */ 163#define GCC 4 /* And the Cc: line */ 164#define GBCC 8 /* And also the Bcc: line */ 165#define GREPLYTO 0x10 /* And the Reply-To: line */ 166#define GINREPLYTO 0x20 /* The In-Reply-To: line */ 167#define GMASK (GTO|GSUBJECT|GCC|GBCC|GREPLYTO|GINREPLYTO) 168 /* Mask of places from whence */ 169 170#define GNL 0x40 /* Print blank line after */ 171#define GDEL 0x80 /* Entity removed from list */ 172#define GCOMMA 0x100 /* detract puts in commas */ 173 174/* 175 * Structure used to pass about the current 176 * state of the user-typed message header. 177 */ 178 179struct header { 180 struct name *h_bcc; /* Blind carbon copies */ 181 struct name *h_cc; /* Carbon copies string */ 182 struct name *h_smopts; /* Sendmail options */ 183 struct name *h_to; /* Dynamic "To:" string */ 184 char *h_inreplyto; /* Reference */ 185 char *h_replyto; /* Reply address */ 186 char *h_subject; /* Subject string */ 187}; 188 189/* 190 * Structure of namelist nodes used in processing 191 * the recipients of mail and aliases and all that 192 * kind of stuff. 193 */ 194 195struct name { 196 struct name *n_flink; /* Forward link in list. */ 197 struct name *n_blink; /* Backward list link */ 198 short n_type; /* From which list it came */ 199 char *n_name; /* This fella's name */ 200}; 201 202/* 203 * Structure of a variable node. All variables are 204 * kept on a singly-linked list of these, rooted by 205 * "variables" 206 */ 207 208struct var { 209 struct var *v_link; /* Forward link to next variable */ 210 char *v_name; /* The variable's name */ 211 char *v_value; /* And it's current value */ 212}; 213 214struct group { 215 struct group *ge_link; /* Next person in this group */ 216 char *ge_name; /* This person's user name */ 217}; 218 219struct grouphead { 220 struct grouphead *g_link; /* Next grouphead in list */ 221 char *g_name; /* Name of this group */ 222 struct group *g_list; /* Users in group. */ 223}; 224 225/* 226 * Structure of the hash table of ignored header fields 227 */ 228struct ignoretab { 229 int i_count; /* Number of entries */ 230 struct ignore { 231 struct ignore *i_link; /* Next ignored field in bucket */ 232 char *i_field; /* This ignored field */ 233 } *i_head[HSHSIZE]; 234}; 235 236/* 237 * Token values returned by the scanner used for argument lists. 238 * Also, sizes of scanner-related things. 239 */ 240 241#define TEOL 0 /* End of the command line */ 242#define TNUMBER 1 /* A message number */ 243#define TDASH 2 /* A simple dash */ 244#define TSTRING 3 /* A string (possibly containing -) */ 245#define TDOT 4 /* A "." */ 246#define TUP 5 /* An "^" */ 247#define TDOLLAR 6 /* A "$" */ 248#define TSTAR 7 /* A "*" */ 249#define TOPEN 8 /* An '(' */ 250#define TCLOSE 9 /* A ')' */ 251#define TPLUS 10 /* A '+' */ 252#define TERROR 11 /* A lexical error */ 253 254#define REGDEP 2 /* Maximum regret depth. */ 255#define STRINGLEN 1024 /* Maximum length of string token */ 256 257/* 258 * Constants for conditional commands. These describe whether 259 * we should be executing stuff or not. 260 */ 261 262#define CANY 0 /* Execute in send or receive mode */ 263#define CRCV 1 /* Execute in receive mode only */ 264#define CSEND 2 /* Execute in send mode only */ 265 266/* 267 * Kludges to handle the change from setexit / reset to setjmp / longjmp 268 */ 269 270#define setexit() setjmp(srbuf) 271#define reset(x) longjmp(srbuf, x) 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} 282 283#endif /* DEF_H */ 284