def.h revision 1.4
1 /* 2 * Copyright (c) 1980 Regents of the University of California. 3 * 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 * from: @(#)def.h 5.22 (Berkeley) 6/25/90 34 * $Id: def.h,v 1.4 1994/03/23 01:32:50 cgd Exp $ 35 */ 36 37 #include <sys/param.h> /* includes <sys/types.h> */ 38 #include <sys/signal.h> 39 #include <stdio.h> 40 #include <sgtty.h> 41 #include <ctype.h> 42 #include <string.h> 43 #include "pathnames.h" 44 45 /* 46 * Mail -- a mail program 47 * 48 * Author: Kurt Shoens (UCB) March 25, 1978 49 */ 50 51 #define APPEND /* New mail goes to end of mailbox */ 52 53 #define ESCAPE '~' /* Default escape for sending */ 54 #define NMLSIZE 1024 /* max names in a message list */ 55 #define PATHSIZE MAXPATHLEN /* Size of pathnames throughout */ 56 #define HSHSIZE 59 /* Hash size for aliases and vars */ 57 #define LINESIZE BUFSIZ /* max readable line width */ 58 #define STRINGSIZE ((unsigned) 128)/* Dynamic allocation units */ 59 #define MAXARGC 1024 /* Maximum list of raw strings */ 60 #define NOSTR ((char *) 0) /* Null string pointer */ 61 #define MAXEXP 25 /* Maximum expansion of aliases */ 62 63 #define equal(a, b) (strcmp(a,b)==0)/* A nice function to string compare */ 64 65 struct message { 66 short m_flag; /* flags, see below */ 67 short m_block; /* block number of this message */ 68 short m_offset; /* offset in block of message */ 69 long m_size; /* Bytes in the message */ 70 short m_lines; /* Lines in the message */ 71 }; 72 73 /* 74 * flag bits. 75 */ 76 77 #define MUSED (1<<0) /* entry is used, but this bit isn't */ 78 #define MDELETED (1<<1) /* entry has been deleted */ 79 #define MSAVED (1<<2) /* entry has been saved */ 80 #define MTOUCH (1<<3) /* entry has been noticed */ 81 #define MPRESERVE (1<<4) /* keep entry in sys mailbox */ 82 #define MMARK (1<<5) /* message is marked! */ 83 #define MODIFY (1<<6) /* message has been modified */ 84 #define MNEW (1<<7) /* message has never been seen */ 85 #define MREAD (1<<8) /* message has been read sometime. */ 86 #define MSTATUS (1<<9) /* message status has changed */ 87 #define MBOX (1<<10) /* Send this to mbox, regardless */ 88 89 /* 90 * Given a file address, determine the block number it represents. 91 */ 92 #define blockof(off) ((int) ((off) / 4096)) 93 #define offsetof(off) ((int) ((off) % 4096)) 94 #define positionof(block, offset) ((off_t)(block) * 4096 + (offset)) 95 96 /* 97 * Format of the command description table. 98 * The actual table is declared and initialized 99 * in lex.c 100 */ 101 102 struct cmd { 103 char *c_name; /* Name of command */ 104 int (*c_func)(); /* Implementor of the command */ 105 short c_argtype; /* Type of arglist (see below) */ 106 short c_msgflag; /* Required flags of messages */ 107 short c_msgmask; /* Relevant flags of messages */ 108 }; 109 110 /* Yechh, can't initialize unions */ 111 112 #define c_minargs c_msgflag /* Minimum argcount for RAWLIST */ 113 #define c_maxargs c_msgmask /* Max argcount for RAWLIST */ 114 115 /* 116 * Argument types. 117 */ 118 119 #define MSGLIST 0 /* Message list type */ 120 #define STRLIST 1 /* A pure string */ 121 #define RAWLIST 2 /* Shell string list */ 122 #define NOLIST 3 /* Just plain 0 */ 123 #define NDMLIST 4 /* Message list, no defaults */ 124 125 #define P 040 /* Autoprint dot after command */ 126 #define I 0100 /* Interactive command bit */ 127 #define M 0200 /* Legal from send mode bit */ 128 #define W 0400 /* Illegal when read only bit */ 129 #define F 01000 /* Is a conditional command */ 130 #define T 02000 /* Is a transparent command */ 131 #define R 04000 /* Cannot be called from collect */ 132 133 /* 134 * Oft-used mask values 135 */ 136 137 #define MMNORM (MDELETED|MSAVED)/* Look at both save and delete bits */ 138 #define MMNDEL MDELETED /* Look only at deleted bit */ 139 140 /* 141 * Structure used to return a break down of a head 142 * line (hats off to Bill Joy!) 143 */ 144 145 struct headline { 146 char *l_from; /* The name of the sender */ 147 char *l_tty; /* His tty string (if any) */ 148 char *l_date; /* The entire date string */ 149 }; 150 151 #define GTO 1 /* Grab To: line */ 152 #define GSUBJECT 2 /* Likewise, Subject: line */ 153 #define GCC 4 /* And the Cc: line */ 154 #define GBCC 8 /* And also the Bcc: line */ 155 #define GMASK (GTO|GSUBJECT|GCC|GBCC) 156 /* Mask of places from whence */ 157 158 #define GNL 16 /* Print blank line after */ 159 #define GDEL 32 /* Entity removed from list */ 160 #define GCOMMA 64 /* detract puts in commas */ 161 162 /* 163 * Structure used to pass about the current 164 * state of the user-typed message header. 165 */ 166 167 struct header { 168 struct name *h_to; /* Dynamic "To:" string */ 169 char *h_subject; /* Subject string */ 170 struct name *h_cc; /* Carbon copies string */ 171 struct name *h_bcc; /* Blind carbon copies */ 172 struct name *h_smopts; /* Sendmail options */ 173 }; 174 175 /* 176 * Structure of namelist nodes used in processing 177 * the recipients of mail and aliases and all that 178 * kind of stuff. 179 */ 180 181 struct name { 182 struct name *n_flink; /* Forward link in list. */ 183 struct name *n_blink; /* Backward list link */ 184 short n_type; /* From which list it came */ 185 char *n_name; /* This fella's name */ 186 }; 187 188 /* 189 * Structure of a variable node. All variables are 190 * kept on a singly-linked list of these, rooted by 191 * "variables" 192 */ 193 194 struct var { 195 struct var *v_link; /* Forward link to next variable */ 196 char *v_name; /* The variable's name */ 197 char *v_value; /* And it's current value */ 198 }; 199 200 struct group { 201 struct group *ge_link; /* Next person in this group */ 202 char *ge_name; /* This person's user name */ 203 }; 204 205 struct grouphead { 206 struct grouphead *g_link; /* Next grouphead in list */ 207 char *g_name; /* Name of this group */ 208 struct group *g_list; /* Users in group. */ 209 }; 210 211 #define NIL ((struct name *) 0) /* The nil pointer for namelists */ 212 #define NONE ((struct cmd *) 0) /* The nil pointer to command tab */ 213 #define NOVAR ((struct var *) 0) /* The nil pointer to variables */ 214 #define NOGRP ((struct grouphead *) 0)/* The nil grouphead pointer */ 215 #define NOGE ((struct group *) 0) /* The nil group pointer */ 216 217 /* 218 * Structure of the hash table of ignored header fields 219 */ 220 struct ignoretab { 221 int i_count; /* Number of entries */ 222 struct ignore { 223 struct ignore *i_link; /* Next ignored field in bucket */ 224 char *i_field; /* This ignored field */ 225 } *i_head[HSHSIZE]; 226 }; 227 228 /* 229 * Token values returned by the scanner used for argument lists. 230 * Also, sizes of scanner-related things. 231 */ 232 233 #define TEOL 0 /* End of the command line */ 234 #define TNUMBER 1 /* A message number */ 235 #define TDASH 2 /* A simple dash */ 236 #define TSTRING 3 /* A string (possibly containing -) */ 237 #define TDOT 4 /* A "." */ 238 #define TUP 5 /* An "^" */ 239 #define TDOLLAR 6 /* A "$" */ 240 #define TSTAR 7 /* A "*" */ 241 #define TOPEN 8 /* An '(' */ 242 #define TCLOSE 9 /* A ')' */ 243 #define TPLUS 10 /* A '+' */ 244 #define TERROR 11 /* A lexical error */ 245 246 #define REGDEP 2 /* Maximum regret depth. */ 247 #define STRINGLEN 1024 /* Maximum length of string token */ 248 249 /* 250 * Constants for conditional commands. These describe whether 251 * we should be executing stuff or not. 252 */ 253 254 #define CANY 0 /* Execute in send or receive mode */ 255 #define CRCV 1 /* Execute in receive mode only */ 256 #define CSEND 2 /* Execute in send mode only */ 257 258 /* 259 * Kludges to handle the change from setexit / reset to setjmp / longjmp 260 */ 261 262 #define setexit() setjmp(srbuf) 263 #define reset(x) longjmp(srbuf, x) 264 265 /* 266 * Truncate a file to the last character written. This is 267 * useful just before closing an old file that was opened 268 * for read/write. 269 */ 270 #define trunc(stream) { \ 271 (void)fflush(stream); \ 272 (void)ftruncate(fileno(stream), (long)ftell(stream)); \ 273 } 274 275 /* 276 * Forward declarations of routine types to keep lint and cc happy. 277 */ 278 279 FILE *Fopen(); 280 FILE *Fdopen(); 281 FILE *Popen(); 282 FILE *collect(); 283 FILE *infix(); 284 FILE *run_editor(); 285 FILE *setinput(); 286 char **unpack(); 287 char *calloc(); 288 char *copy(); 289 char *copyin(); 290 char *detract(); 291 char *expand(); 292 char *getdeadletter(); 293 char *gets(); 294 char *hfield(); 295 char *name1(); 296 char *nameof(); 297 char *nextword(); 298 char *getenv(); 299 char *getname(); 300 char *fgets(); 301 char *ishfield(); 302 char *malloc(); 303 char *mktemp(); 304 char *readtty(); 305 char *reedit(); 306 char *salloc(); 307 char *savestr(); 308 char *skin(); 309 char *snarf(); 310 char *username(); 311 char *value(); 312 char *vcopy(); 313 char *yankword(); 314 off_t fsize(); 315 uid_t getuid(); 316 struct cmd *lex(); 317 struct grouphead *findgroup(); 318 struct name *nalloc(); 319 struct name *cat(); 320 struct name *delname(); 321 struct name *elide(); 322 struct name *extract(); 323 struct name *gexpand(); 324 struct name *outof(); 325 struct name *put(); 326 struct name *usermap(); 327 struct var *lookup(); 328
Indexes created Mon Sep 22 21:09:42 GMT 2025