def.h revision 1.25
1 /* $NetBSD: def.h,v 1.25 2007/10/23 14:58:43 christos Exp $ */ 2 /* 3 * Copyright (c) 1980, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the name of the University nor the names of its contributors 15 * may be used to endorse or promote products derived from this software 16 * without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * @(#)def.h 8.4 (Berkeley) 4/20/95 31 * $NetBSD: def.h,v 1.25 2007/10/23 14:58:43 christos Exp $ 32 */ 33 34 /* 35 * Mail -- a mail program 36 * 37 * Author: Kurt Shoens (UCB) March 25, 1978 38 */ 39 40 #ifndef __DEF_H__ 41 #define __DEF_H__ 42 43 #include <sys/types.h> 44 #include <sys/file.h> 45 #include <sys/ioctl.h> 46 #include <sys/stat.h> 47 #include <sys/param.h> 48 #include <sys/time.h> 49 #include <sys/wait.h> 50 51 #include <ctype.h> 52 #include <err.h> 53 #include <errno.h> 54 #include <fcntl.h> 55 #include <paths.h> 56 #include <pwd.h> 57 #include <signal.h> 58 #include <stdio.h> 59 #include <stdlib.h> 60 #include <string.h> 61 #include <termios.h> 62 #include <time.h> 63 #include <unistd.h> 64 #include "pathnames.h" 65 66 #define APPEND /* New mail goes to end of mailbox */ 67 68 #define COMMENT_CHAR '#' /* Comment character when sourcing */ 69 #define ESCAPE '~' /* Default escape for sending */ 70 #define NMLSIZE 1024 /* max names in a message list */ 71 #define PATHSIZE MAXPATHLEN /* Size of pathnames throughout */ 72 #define HSHSIZE 59 /* Hash size for aliases and vars */ 73 #define LINESIZE BUFSIZ /* max readable line width */ 74 #define MAXARGC 1024 /* Maximum list of raw strings */ 75 #define MAXEXP 25 /* Maximum expansion of aliases */ 76 77 #define PUBLIC /* make it easy to find the entry points */ 78 79 /* 80 * User environment variable names. 81 * See complete.h, mime.h, and thread.h for names specific to those modules. 82 */ 83 #define ENAME_INDENT_POSTSCRIPT "indentpostscript" 84 #define ENAME_INDENT_PREAMBLE "indentpreamble" 85 #define ENAME_APPEND "append" 86 #define ENAME_ASK "ask" 87 #define ENAME_ASKBCC "askbcc" 88 #define ENAME_ASKCC "askcc" 89 #define ENAME_ASKSUB "asksub" 90 #define ENAME_AUTOINC "autoinc" 91 #define ENAME_AUTOPRINT "autoprint" 92 #define ENAME_CRT "crt" 93 #define ENAME_DEAD "DEAD" 94 #define ENAME_DEBUG "debug" 95 #define ENAME_DONTSENDEMPTY "dontsendempty" 96 #define ENAME_DOT "dot" 97 #define ENAME_EDITOR "EDITOR" 98 #define ENAME_ENABLE_PIPES "enable-pipes" 99 #define ENAME_ESCAPE "escape" 100 #define ENAME_FOLDER "folder" 101 #define ENAME_HEADER_FORMAT "header-format" 102 #define ENAME_HOLD "hold" 103 #define ENAME_IGNORE "ignore" 104 #define ENAME_IGNOREEOF "ignoreeof" 105 #define ENAME_INDENTPREFIX "indentprefix" 106 #define ENAME_INTERACTIVE "interactive" 107 #define ENAME_KEEP "keep" 108 #define ENAME_KEEPSAVE "keepsave" 109 #define ENAME_LISTER "LISTER" 110 #define ENAME_MBOX "MBOX" 111 #define ENAME_METOO "metoo" 112 #define ENAME_NOHEADER "noheader" 113 #define ENAME_NOSAVE "nosave" 114 #define ENAME_PAGER "PAGER" 115 #define ENAME_PAGER_OFF "pager-off" 116 #define ENAME_PROMPT "prompt" 117 #define ENAME_QUIET "quiet" 118 #define ENAME_RECORD "record" 119 #define ENAME_REGEX_SEARCH "regex-search" 120 #define ENAME_REPLYALL "Replyall" 121 #define ENAME_REPLYASRECIPIENT "ReplyAsRecipient" 122 #define ENAME_SCREEN "screen" 123 #define ENAME_SCREENHEIGHT "screenheight" 124 #define ENAME_SCREENWIDTH "screenwidth" 125 #define ENAME_SEARCHHEADERS "searchheaders" 126 #define ENAME_SENDMAIL "sendmail" 127 #define ENAME_SHELL "SHELL" 128 #define ENAME_SHOW_RCPT "show-rcpt" 129 #define ENAME_SMOPTS_VERIFY "smopts-verify" 130 #define ENAME_TOPLINES "toplines" 131 #define ENAME_VERBOSE "verbose" 132 #define ENAME_VISUAL "VISUAL" 133 134 #define sizeofarray(a) (sizeof(a)/sizeof(*a)) 135 #define equal(a, b) (strcmp(a,b)==0)/* A nice function to string compare */ 136 137 struct message { 138 short m_flag; /* flags, see below */ 139 short m_offset; /* offset in block of message */ 140 long m_block; /* block number of this message */ 141 long m_lines; /* Lines in the message */ 142 off_t m_size; /* Bytes in the message */ 143 long m_blines; /* Body (non-header) lines */ 144 145 /* 146 * threading fields 147 */ 148 int m_index; /* message index in this thread */ 149 int m_depth; /* depth in thread */ 150 struct message *m_flink; /* link to next message */ 151 struct message *m_blink; /* link to previous message */ 152 struct message *m_clink; /* link to child of this message */ 153 struct message *m_plink; /* link to parent of thread */ 154 }; 155 typedef struct mime_info mime_info_t; /* phantom structure only to attach.c */ 156 157 /* 158 * flag bits. 159 */ 160 161 #define MUSED (1<<0) /* entry is used, but this bit isn't */ 162 #define MDELETED (1<<1) /* entry has been deleted */ 163 #define MSAVED (1<<2) /* entry has been saved */ 164 #define MTOUCH (1<<3) /* entry has been noticed */ 165 #define MPRESERVE (1<<4) /* keep entry in sys mailbox */ 166 #define MMARK (1<<5) /* message is marked! */ 167 #define MMODIFY (1<<6) /* message has been modified */ 168 #define MNEW (1<<7) /* message has never been seen */ 169 #define MREAD (1<<8) /* message has been read sometime. */ 170 #define MSTATUS (1<<9) /* message status has changed */ 171 #define MBOX (1<<10) /* Send this to mbox, regardless */ 172 #define MTAGGED (1<<11) /* message has been tagged */ 173 174 /* 175 * Given a file address, determine the block number it represents. 176 */ 177 #define blockof(off) ((int) ((off) / 4096)) 178 #define blkoffsetof(off) ((int) ((off) % 4096)) 179 #define positionof(block, offset) ((off_t)(block) * 4096 + (offset)) 180 181 /* 182 * Format of the command description table. 183 * The actual table is declared and initialized 184 * in lex.c 185 */ 186 struct cmd { 187 const char *c_name; /* Name of command */ 188 int (*c_func)(void *); /* Implementor of the command */ 189 int c_pipe; /* Pipe output through the pager */ 190 # define C_PIPE_PAGER 1 /* enable use of pager */ 191 # define C_PIPE_CRT 2 /* use the pager if CRT is defined */ 192 # define C_PIPE_SHELL 4 /* enable shell pipes */ 193 #ifdef USE_EDITLINE 194 const char *c_complete; /* String describing completion */ 195 #endif 196 short c_argtype; /* Type of arglist (see below) */ 197 short c_msgflag; /* Required flags of messages */ 198 short c_msgmask; /* Relevant flags of messages */ 199 }; 200 201 /* Yechh, can't initialize unions */ 202 203 #define c_minargs c_msgflag /* Minimum argcount for RAWLIST */ 204 #define c_maxargs c_msgmask /* Max argcount for RAWLIST */ 205 206 /* 207 * Argument types. 208 */ 209 210 #define MSGLIST 0 /* Message list type */ 211 #define STRLIST 1 /* A pure string */ 212 #define RAWLIST 2 /* Shell string list */ 213 #define NOLIST 3 /* Just plain 0 */ 214 #define NDMLIST 4 /* Message list, no defaults */ 215 216 #define P 0x010 /* Autoprint dot after command */ 217 #define I 0x020 /* Interactive command bit */ 218 #define M 0x040 /* Legal from send mode bit */ 219 #define W 0x080 /* Illegal when read only bit */ 220 #define F 0x100 /* Is a conditional command */ 221 #define T 0x200 /* Is a transparent command */ 222 #define R 0x400 /* Cannot be called from collect */ 223 #define ARGTYPE_MASK ~(P|I|M|W|F|T|R) 224 225 /* 226 * Oft-used mask values 227 */ 228 229 #define MMNORM (MDELETED|MSAVED)/* Look at both save and delete bits */ 230 #define MMNDEL MDELETED /* Look only at deleted bit */ 231 232 /* 233 * Structure used to return a break down of a head 234 * line (hats off to Bill Joy!) 235 */ 236 237 struct headline { 238 char *l_from; /* The name of the sender */ 239 char *l_tty; /* His tty string (if any) */ 240 char *l_date; /* The entire date string */ 241 }; 242 243 #define GTO 0x001 /* Grab To: line */ 244 #define GSUBJECT 0x002 /* Likewise, Subject: line */ 245 #define GCC 0x004 /* And the Cc: line */ 246 #define GBCC 0x008 /* And also the Bcc: line */ 247 #define GSMOPTS 0x010 /* Grab the sendmail options */ 248 #define GMISC 0x020 /* miscellaneous extra fields for sending */ 249 #ifdef MIME_SUPPORT 250 #define GMIME 0x040 /* mime flag */ 251 #endif 252 #define GMASK (GTO|GSUBJECT|GCC|GBCC|GSMOPTS) 253 /* Mask of places from whence */ 254 255 #define GNL 0x100 /* Print blank line after */ 256 #define GDEL 0x200 /* Entity removed from list */ 257 #define GCOMMA 0x400 /* detract puts in commas */ 258 259 #ifdef MIME_SUPPORT 260 /* 261 * Structure of MIME content. 262 */ 263 struct Content { 264 const char *C_type; /* content type */ 265 const char *C_encoding; /* content transfer encoding */ 266 const char *C_disposition; /* content disposition */ 267 const char *C_description; /* content description */ 268 const char *C_id; /* content id */ 269 }; 270 /* Header strings corresponding to the above Content fields. */ 271 #define MIME_HDR_TYPE "Content-Type" 272 #define MIME_HDR_ENCODING "Content-Transfer-Encoding" 273 #define MIME_HDR_DISPOSITION "Content-Disposition" 274 #define MIME_HDR_ID "Content-ID" 275 #define MIME_HDR_DESCRIPTION "Content-Description" 276 #define MIME_HDR_VERSION "MIME-Version" 277 /* the value of the MIME-Version field */ 278 #define MIME_VERSION "1.0" 279 280 typedef enum { 281 ATTACH_INVALID = 0, /* do not use! */ 282 ATTACH_FNAME = 1, 283 ATTACH_MSG = 2, 284 ATTACH_FILENO = 3 285 } attach_t; 286 287 /* 288 * Structure of a MIME attachment. 289 */ 290 struct attachment { 291 struct attachment *a_flink; /* Forward link in list. */ 292 struct attachment *a_blink; /* Backward list link */ 293 294 attach_t a_type; /* attachment type */ 295 #if 1 296 union { 297 char *u_name; /* file name */ 298 struct message *u_msg; /* message */ 299 int u_fileno; /* file number */ 300 } a_u; 301 302 #define a_name a_u.u_name 303 #define a_msg a_u.u_msg 304 #define a_fileno a_u.u_fileno 305 #else 306 char *a_name; /* file name */ 307 struct message *a_msg; /* message */ 308 int a_fileno; /* file number */ 309 #endif 310 311 struct Content a_Content; /* MIME content strings */ 312 }; 313 #endif /* MIME_SUPPORT */ 314 315 /* 316 * Structure used to pass about the current 317 * state of the user-typed message header. 318 */ 319 320 struct header { 321 struct name *h_to; /* Dynamic "To:" string */ 322 char *h_subject; /* Subject string */ 323 struct name *h_cc; /* Carbon copies string */ 324 struct name *h_bcc; /* Blind carbon copies */ 325 struct name *h_smopts; /* Sendmail options */ 326 char *h_in_reply_to; 327 struct name *h_references; 328 #ifdef MIME_SUPPORT 329 char *h_mime_boundary; /* MIME multipart boundary string */ 330 struct Content h_Content; /* MIME content for message */ 331 struct attachment *h_attach; /* MIME attachments */ 332 #endif 333 }; 334 335 /* 336 * Structure of namelist nodes used in processing 337 * the recipients of mail and aliases and all that 338 * kind of stuff. 339 */ 340 341 struct name { 342 struct name *n_flink; /* Forward link in list. */ 343 struct name *n_blink; /* Backward list link */ 344 short n_type; /* From which list it came */ 345 char *n_name; /* This fella's name */ 346 }; 347 348 /* 349 * Structure of a variable node. All variables are 350 * kept on a singly-linked list of these, rooted by 351 * "variables" 352 */ 353 354 struct var { 355 struct var *v_link; /* Forward link to next variable */ 356 char *v_name; /* The variable's name */ 357 char *v_value; /* And it's current value */ 358 }; 359 360 struct group { 361 struct group *ge_link; /* Next person in this group */ 362 char *ge_name; /* This person's user name */ 363 }; 364 365 struct grouphead { 366 struct grouphead *g_link; /* Next grouphead in list */ 367 char *g_name; /* Name of this group */ 368 struct group *g_list; /* Users in group. */ 369 }; 370 371 struct smopts_s { 372 struct smopts_s *s_link; /* Link to next smopts_s in list */ 373 char *s_name; /* Name of this smopts_s */ 374 struct name *s_smopts; /* sendmail options name list */ 375 }; 376 377 /* 378 * Structure of the hash table of ignored header fields 379 */ 380 struct ignoretab { 381 size_t i_count; /* Number of entries */ 382 struct ignore { 383 struct ignore *i_link; /* Next ignored field in bucket */ 384 char *i_field; /* This ignored field */ 385 } *i_head[HSHSIZE]; 386 }; 387 388 /* 389 * Constants for conditional commands. These control whether we 390 * should be executing commands or not. 391 */ 392 struct cond_stack_s { 393 struct cond_stack_s *c_next; 394 int c_cond; 395 }; 396 #define CNONE 0x00 /* Execute everything */ 397 #define CSKIP 0x01 /* Do not execute commands */ 398 #define CIF 0x02 /* Inside if/endif block */ 399 #define CELSE 0x04 /* The last conditional was else */ 400 #define CIGN 0x08 /* Conditional in a skipped block */ 401 402 enum mailmode_e { 403 mm_receiving, /* receiving mail mode */ 404 mm_sending, /* sending mail mode */ 405 mm_hdrsonly /* headers only mode */ 406 }; 407 408 /* 409 * Kludges to handle the change from setexit / reset to setjmp / longjmp 410 */ 411 412 #define setexit() (void)setjmp(srbuf) 413 #define reset(x) longjmp(srbuf, x) 414 415 /* 416 * Truncate a file to the last character written. This is 417 * useful just before closing an old file that was opened 418 * for read/write. 419 */ 420 #define trunc(stream) { \ 421 (void)fflush(stream); \ 422 (void)ftruncate(fileno(stream), (off_t)ftell(stream)); \ 423 } 424 425 /* 426 * White Space (WSP) as specified in see RFC 2822. 427 * 428 * NOTE: Use this in place of isblank() so it is inline. Also, unlike 429 * the table implemented ctype(3) routines, this does not have input 430 * range issues caused by sign extensions. 431 * 432 * See mime_header.h for the related is_FWS(). 433 */ 434 static inline int 435 is_WSP(int c) 436 { 437 return c == ' ' || c == '\t'; 438 } 439 440 static inline char* 441 skip_WSP(const char *cp) 442 { 443 while (is_WSP(*cp)) 444 cp++; 445 return __UNCONST(cp); 446 } 447 448 static inline char* 449 skip_space(char *p) 450 { 451 while (isspace((unsigned char)*p)) 452 p++; 453 return p; 454 } 455 456 #endif /* __DEF_H__ */ 457
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