1 /* $OpenBSD: def.h,v 1.17 2022/01/28 06:18:41 guenther Exp $ */ 2 /* $NetBSD: def.h,v 1.9 1996/12/28 07:11:00 tls Exp $ */ 3 4 /* 5 * Copyright (c) 1980, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)def.h 8.4 (Berkeley) 4/20/95 33 * $OpenBSD: def.h,v 1.17 2022/01/28 06:18:41 guenther Exp $ 34 */ 35 36 /* 37 * Mail -- a mail program 38 * 39 * Author: Kurt Shoens (UCB) March 25, 1978 40 */ 41 42 #ifndef MAIL_DEF_H 43 #define MAIL_DEF_H 44 45 #include <sys/stat.h> 46 47 #include <ctype.h> 48 #include <err.h> 49 #include <signal.h> 50 #include <stdio.h> 51 #include <stdlib.h> 52 #include <string.h> 53 #include <termios.h> 54 #include <unistd.h> 55 #include <limits.h> 56 #include <vis.h> 57 #include "pathnames.h" 58 59 #define APPEND /* New mail goes to end of mailbox */ 60 61 #define ESCAPE '~' /* Default escape for sending */ 62 #define NMLSIZE 1024 /* max names in a message list */ 63 #define PATHSIZE PATH_MAX /* Size of pathnames throughout */ 64 #define HSHSIZE 59 /* Hash size for aliases and vars */ 65 #define LINESIZE BUFSIZ /* max readable line width */ 66 #define STRINGSIZE ((unsigned) 128)/* Dynamic allocation units */ 67 #define MAXARGC 1024 /* Maximum list of raw strings */ 68 #define MAXEXP 25 /* Maximum expansion of aliases */ 69 70 #define equal(a, b) (strcmp(a,b)==0)/* A nice function to string compare */ 71 72 struct message { 73 short m_flag; /* flags, see below */ 74 int m_offset; /* offset in block of message */ 75 int m_block; /* block number of this message */ 76 int m_size; /* Bytes in the message */ 77 int m_lines; /* Lines in the message */ 78 }; 79 80 /* 81 * flag bits. 82 */ 83 #define MUSED (1<<0) /* entry is used, but this bit isn't */ 84 #define MDELETED (1<<1) /* entry has been deleted */ 85 #define MSAVED (1<<2) /* entry has been saved */ 86 #define MTOUCH (1<<3) /* entry has been noticed */ 87 #define MPRESERVE (1<<4) /* keep entry in sys mailbox */ 88 #define MMARK (1<<5) /* message is marked! */ 89 #define MODIFY (1<<6) /* message has been modified */ 90 #define MNEW (1<<7) /* message has never been seen */ 91 #define MREAD (1<<8) /* message has been read sometime. */ 92 #define MSTATUS (1<<9) /* message status has changed */ 93 #define MBOX (1<<10) /* Send this to mbox, regardless */ 94 95 /* 96 * Given a file address, determine the block number it represents. 97 */ 98 #define blockof(off) ((int) ((off) / 4096)) 99 #define offsetof(off) ((int) ((off) % 4096)) 100 #define positionof(block, offset) ((off_t)(block) * 4096 + (offset)) 101 102 /* 103 * Format of the command description table. 104 * The actual table is declared and initialized 105 * in lex.c 106 */ 107 struct cmd { 108 char *c_name; /* Name of command */ 109 union { 110 int (*c_func1)(void *); 111 int (*c_func2)(void *, void *); 112 } cfunc; /* Implementor of the command */ 113 #define c_func cfunc.c_func1 114 #define c_func2 cfunc.c_func2 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 #define c_minargs c_msgflag /* Minimum argcount for RAWLIST */ 122 #define c_maxargs c_msgmask /* Max argcount for RAWLIST */ 123 124 /* 125 * Argument types. 126 */ 127 #define MSGLIST 0x0001 /* Message list type */ 128 #define STRLIST 0x0002 /* A pure string */ 129 #define RAWLIST 0x0004 /* Shell string list */ 130 #define NOLIST 0x0008 /* Just plain 0 */ 131 #define NDMLIST 0x0010 /* Message list, no defaults */ 132 133 #define P 0x0020 /* Autoprint dot after command */ 134 #define I 0x0040 /* Interactive command bit */ 135 #define M 0x0080 /* Legal from send mode bit */ 136 #define W 0x0100 /* Illegal when read only bit */ 137 #define F 0x0200 /* Is a conditional command */ 138 #define T 0x0400 /* Is a transparent command */ 139 #define R 0x0800 /* Cannot be called from collect */ 140 141 /* 142 * Oft-used mask values 143 */ 144 #define MMNORM (MDELETED|MSAVED)/* Look at both save and delete bits */ 145 #define MMNDEL MDELETED /* Look only at deleted bit */ 146 147 /* 148 * Structure used to return a break down of a head 149 * line (hats off to Bill Joy!) 150 */ 151 struct headline { 152 char *l_from; /* The name of the sender */ 153 char *l_tty; /* His tty string (if any) */ 154 char *l_date; /* The entire date string */ 155 }; 156 157 #define GTO 1 /* Grab To: line */ 158 #define GSUBJECT 2 /* Likewise, Subject: line */ 159 #define GCC 4 /* And the Cc: line */ 160 #define GBCC 8 /* And also the Bcc: line */ 161 #define GMASK (GTO|GSUBJECT|GCC|GBCC) 162 /* Mask of places from whence */ 163 164 #define GNL 16 /* Print blank line after */ 165 #define GDEL 32 /* Entity removed from list */ 166 #define GCOMMA 64 /* detract puts in commas */ 167 168 /* 169 * Structure used to pass about the current 170 * state of the user-typed message header. 171 */ 172 struct header { 173 struct name *h_to; /* Dynamic "To:" string */ 174 char *h_from; /* User-specified "From:" string */ 175 char *h_subject; /* Subject string */ 176 struct name *h_cc; /* Carbon copies string */ 177 struct name *h_bcc; /* Blind carbon copies */ 178 struct name *h_smopts; /* Sendmail options */ 179 }; 180 181 /* 182 * Structure of namelist nodes used in processing 183 * the recipients of mail and aliases and all that 184 * kind of stuff. 185 */ 186 struct name { 187 struct name *n_flink; /* Forward link in list. */ 188 struct name *n_blink; /* Backward list link */ 189 short n_type; /* From which list it came */ 190 char *n_name; /* This fella's name */ 191 }; 192 193 /* 194 * Structure of a variable node. All variables are 195 * kept on a singly-linked list of these, rooted by 196 * "variables" 197 */ 198 199 struct var { 200 struct var *v_link; /* Forward link to next variable */ 201 char *v_name; /* The variable's name */ 202 char *v_value; /* And its current value */ 203 }; 204 205 struct group { 206 struct group *ge_link; /* Next person in this group */ 207 char *ge_name; /* This person's user name */ 208 }; 209 210 struct grouphead { 211 struct grouphead *g_link; /* Next grouphead in list */ 212 char *g_name; /* Name of this group */ 213 struct group *g_list; /* Users in group. */ 214 }; 215 216 /* 217 * Structure of the hash table of ignored header fields 218 */ 219 struct ignoretab { 220 int i_count; /* Number of entries */ 221 struct ignore { 222 struct ignore *i_link; /* Next ignored field in bucket */ 223 char *i_field; /* This ignored field */ 224 } *i_head[HSHSIZE]; 225 }; 226 227 /* 228 * Token values returned by the scanner used for argument lists. 229 * Also, sizes of scanner-related things. 230 */ 231 #define TEOL 0 /* End of the command line */ 232 #define TNUMBER 1 /* A message number */ 233 #define TDASH 2 /* A simple dash */ 234 #define TSTRING 3 /* A string (possibly containing -) */ 235 #define TDOT 4 /* A "." */ 236 #define TUP 5 /* An "^" */ 237 #define TDOLLAR 6 /* A "$" */ 238 #define TSTAR 7 /* A "*" */ 239 #define TOPEN 8 /* An '(' */ 240 #define TCLOSE 9 /* A ')' */ 241 #define TPLUS 10 /* A '+' */ 242 #define TERROR 11 /* A lexical error */ 243 244 #define REGDEP 2 /* Maximum regret depth. */ 245 #define STRINGLEN 1024 /* Maximum length of string token */ 246 247 /* 248 * Constants for conditional commands. 249 * These describe whether we should be executing stuff or not. 250 */ 251 #define CANY 0 /* Execute in send or receive mode */ 252 #define CRCV 1 /* Execute in receive mode only */ 253 #define CSEND 2 /* Execute in send mode only */ 254 255 /* 256 * Truncate a file to the last character written. This is 257 * useful just before closing an old file that was opened 258 * for read/write. 259 */ 260 #define trunc(stream) do { \ 261 (void)fflush(stream); \ 262 (void)ftruncate(fileno(stream), (off_t)ftell(stream)); \ 263 } while(0) 264 265 #endif /* MAIL_DEF_H */ 266