1 /* 2 * Copyright (c) 1983 Eric P. Allman 3 * Copyright (c) 1988, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * %sccs.include.redist.c% 7 * 8 * @(#)sendmail.h 8.105 (Berkeley) 03/21/95 9 */ 10 11 /* 12 ** SENDMAIL.H -- Global definitions for sendmail. 13 */ 14 15 # ifdef _DEFINE 16 # define EXTERN 17 # ifndef lint 18 static char SmailSccsId[] = "@(#)sendmail.h 8.105 03/21/95"; 19 # endif 20 # else /* _DEFINE */ 21 # define EXTERN extern 22 # endif /* _DEFINE */ 23 24 # include <unistd.h> 25 # include <stddef.h> 26 # include <stdlib.h> 27 # include <stdio.h> 28 # include <ctype.h> 29 # include <setjmp.h> 30 # include <string.h> 31 # include <time.h> 32 # include <errno.h> 33 # ifdef EX_OK 34 # undef EX_OK 35 # endif 36 # include <sysexits.h> 37 38 # include "conf.h" 39 # include "useful.h" 40 41 # ifdef LOG 42 # include <syslog.h> 43 # endif /* LOG */ 44 45 # ifdef DAEMON 46 # include <sys/socket.h> 47 # endif 48 # ifdef NETUNIX 49 # include <sys/un.h> 50 # endif 51 # ifdef NETINET 52 # include <netinet/in.h> 53 # endif 54 # ifdef NETISO 55 # include <netiso/iso.h> 56 # endif 57 # ifdef NETNS 58 # include <netns/ns.h> 59 # endif 60 # ifdef NETX25 61 # include <netccitt/x25.h> 62 # endif 63 64 65 66 67 /* 68 ** Data structure for bit maps. 69 ** 70 ** Each bit in this map can be referenced by an ascii character. 71 ** This is 256 possible bits, or 32 8-bit bytes. 72 */ 73 74 #define BITMAPBYTES 32 /* number of bytes in a bit map */ 75 #define BYTEBITS 8 /* number of bits in a byte */ 76 77 /* internal macros */ 78 #define _BITWORD(bit) ((bit) / (BYTEBITS * sizeof (int))) 79 #define _BITBIT(bit) (1 << ((bit) % (BYTEBITS * sizeof (int)))) 80 81 typedef int BITMAP[BITMAPBYTES / sizeof (int)]; 82 83 /* test bit number N */ 84 #define bitnset(bit, map) ((map)[_BITWORD(bit)] & _BITBIT(bit)) 85 86 /* set bit number N */ 87 #define setbitn(bit, map) (map)[_BITWORD(bit)] |= _BITBIT(bit) 88 89 /* clear bit number N */ 90 #define clrbitn(bit, map) (map)[_BITWORD(bit)] &= ~_BITBIT(bit) 91 92 /* clear an entire bit map */ 93 #define clrbitmap(map) bzero((char *) map, BITMAPBYTES) 94 /* 95 ** Address structure. 96 ** Addresses are stored internally in this structure. 97 */ 98 99 struct address 100 { 101 char *q_paddr; /* the printname for the address */ 102 char *q_user; /* user name */ 103 char *q_ruser; /* real user name, or NULL if q_user */ 104 char *q_host; /* host name */ 105 struct mailer *q_mailer; /* mailer to use */ 106 u_long q_flags; /* status flags, see below */ 107 uid_t q_uid; /* user-id of receiver (if known) */ 108 gid_t q_gid; /* group-id of receiver (if known) */ 109 char *q_home; /* home dir (local mailer only) */ 110 char *q_fullname; /* full name if known */ 111 struct address *q_next; /* chain */ 112 struct address *q_alias; /* address this results from */ 113 char *q_owner; /* owner of q_alias */ 114 struct address *q_tchain; /* temporary use chain */ 115 char *q_orcpt; /* ORCPT parameter from RCPT TO: line */ 116 char *q_status; /* status code for DSNs */ 117 char *q_fstatus; /* final status code for DSNs */ 118 char *q_rstatus; /* remote status message for DSNs */ 119 time_t q_statdate; /* date of status messages */ 120 char *q_statmta; /* MTA generating q_rstatus */ 121 }; 122 123 typedef struct address ADDRESS; 124 125 # define QDONTSEND 0x00000001 /* don't send to this address */ 126 # define QBADADDR 0x00000002 /* this address is verified bad */ 127 # define QGOODUID 0x00000004 /* the q_uid q_gid fields are good */ 128 # define QPRIMARY 0x00000008 /* set from argv */ 129 # define QQUEUEUP 0x00000010 /* queue for later transmission */ 130 # define QSENT 0x00000020 /* has been successfully delivered */ 131 # define QNOTREMOTE 0x00000040 /* address not for remote forwarding */ 132 # define QSELFREF 0x00000080 /* this address references itself */ 133 # define QVERIFIED 0x00000100 /* verified, but not expanded */ 134 # define QREPORT 0x00000200 /* report this addr in return message */ 135 # define QBOGUSSHELL 0x00000400 /* user has no valid shell listed */ 136 # define QUNSAFEADDR 0x00000800 /* address aquired via unsafe path */ 137 # define QPINGONSUCCESS 0x00001000 /* give return on successful delivery */ 138 # define QPINGONFAILURE 0x00002000 /* give return on failure */ 139 # define QPINGONDELAY 0x00004000 /* give return on message delay */ 140 # define QRELAYED 0x00020000 /* relayed to non-DSN aware mailer */ 141 142 # define NULLADDR ((ADDRESS *) NULL) 143 /* 144 ** Mailer definition structure. 145 ** Every mailer known to the system is declared in this 146 ** structure. It defines the pathname of the mailer, some 147 ** flags associated with it, and the argument vector to 148 ** pass to it. The flags are defined in conf.c 149 ** 150 ** The argument vector is expanded before actual use. All 151 ** words except the first are passed through the macro 152 ** processor. 153 */ 154 155 struct mailer 156 { 157 char *m_name; /* symbolic name of this mailer */ 158 char *m_mailer; /* pathname of the mailer to use */ 159 char *m_mtatype; /* type of this MTA */ 160 char *m_addrtype; /* type for addresses */ 161 char *m_diagtype; /* type for diagnostics */ 162 BITMAP m_flags; /* status flags, see below */ 163 short m_mno; /* mailer number internally */ 164 char **m_argv; /* template argument vector */ 165 short m_sh_rwset; /* rewrite set: sender header addresses */ 166 short m_se_rwset; /* rewrite set: sender envelope addresses */ 167 short m_rh_rwset; /* rewrite set: recipient header addresses */ 168 short m_re_rwset; /* rewrite set: recipient envelope addresses */ 169 char *m_eol; /* end of line string */ 170 long m_maxsize; /* size limit on message to this mailer */ 171 int m_linelimit; /* max # characters per line */ 172 char *m_execdir; /* directory to chdir to before execv */ 173 uid_t m_uid; /* UID to run as */ 174 gid_t m_gid; /* GID to run as */ 175 char *m_defcharset; /* default character set */ 176 }; 177 178 typedef struct mailer MAILER; 179 180 /* bits for m_flags */ 181 # define M_ESMTP 'a' /* run Extended SMTP protocol */ 182 # define M_ALIASABLE 'A' /* user can be LHS of an alias */ 183 # define M_BLANKEND 'b' /* ensure blank line at end of message */ 184 # define M_NOCOMMENT 'c' /* don't include comment part of address */ 185 # define M_CANONICAL 'C' /* make addresses canonical "u@dom" */ 186 # define M_NOBRACKET 'd' /* never angle bracket envelope route-addrs */ 187 /* 'D' /* CF: include Date: */ 188 # define M_EXPENSIVE 'e' /* it costs to use this mailer.... */ 189 # define M_ESCFROM 'E' /* escape From lines to >From */ 190 # define M_FOPT 'f' /* mailer takes picky -f flag */ 191 /* 'F' /* CF: include From: or Resent-From: */ 192 # define M_NO_NULL_FROM 'g' /* sender of errors should be $g */ 193 # define M_HST_UPPER 'h' /* preserve host case distinction */ 194 # define M_PREHEAD 'H' /* MAIL11V3: preview headers */ 195 # define M_UDBENVELOPE 'i' /* do udbsender rewriting on envelope */ 196 # define M_INTERNAL 'I' /* SMTP to another sendmail site */ 197 # define M_UDBRECIPIENT 'j' /* do udbsender rewriting on recipient lines */ 198 # define M_NOLOOPCHECK 'k' /* don't check for loops in HELO command */ 199 # define M_LOCALMAILER 'l' /* delivery is to this host */ 200 # define M_LIMITS 'L' /* must enforce SMTP line limits */ 201 # define M_MUSER 'm' /* can handle multiple users at once */ 202 /* 'M' /* CF: include Message-Id: */ 203 # define M_NHDR 'n' /* don't insert From line */ 204 # define M_MANYSTATUS 'N' /* MAIL11V3: DATA returns multi-status */ 205 # define M_RUNASRCPT 'o' /* always run mailer as recipient */ 206 # define M_FROMPATH 'p' /* use reverse-path in MAIL FROM: */ 207 /* 'P' /* CF: include Return-Path: */ 208 # define M_ROPT 'r' /* mailer takes picky -r flag */ 209 # define M_SECURE_PORT 'R' /* try to send on a reserved TCP port */ 210 # define M_STRIPQ 's' /* strip quote chars from user/host */ 211 # define M_SPECIFIC_UID 'S' /* run as specific uid/gid */ 212 # define M_USR_UPPER 'u' /* preserve user case distinction */ 213 # define M_UGLYUUCP 'U' /* this wants an ugly UUCP from line */ 214 /* 'V' /* UIUC: !-relativize all addresses */ 215 # define M_HASPWENT 'w' /* check for /etc/passwd entry */ 216 /* 'x' /* CF: include Full-Name: */ 217 # define M_XDOT 'X' /* use hidden-dot algorithm */ 218 # define M_TRYRULESET5 '5' /* use ruleset 5 after local aliasing */ 219 # define M_7BITS '7' /* use 7-bit path */ 220 # define M_8BITS '8' /* force "just send 8" behaviour */ 221 # define M_CHECKINCLUDE ':' /* check for :include: files */ 222 # define M_CHECKPROG '|' /* check for |program addresses */ 223 # define M_CHECKFILE '/' /* check for /file addresses */ 224 # define M_CHECKUDB '@' /* user can be user database key */ 225 226 EXTERN MAILER *Mailer[MAXMAILERS+1]; 227 228 EXTERN MAILER *LocalMailer; /* ptr to local mailer */ 229 EXTERN MAILER *ProgMailer; /* ptr to program mailer */ 230 EXTERN MAILER *FileMailer; /* ptr to *file* mailer */ 231 EXTERN MAILER *InclMailer; /* ptr to *include* mailer */ 232 /* 233 ** Header structure. 234 ** This structure is used internally to store header items. 235 */ 236 237 struct header 238 { 239 char *h_field; /* the name of the field */ 240 char *h_value; /* the value of that field */ 241 struct header *h_link; /* the next header */ 242 u_short h_flags; /* status bits, see below */ 243 BITMAP h_mflags; /* m_flags bits needed */ 244 }; 245 246 typedef struct header HDR; 247 248 /* 249 ** Header information structure. 250 ** Defined in conf.c, this struct declares the header fields 251 ** that have some magic meaning. 252 */ 253 254 struct hdrinfo 255 { 256 char *hi_field; /* the name of the field */ 257 u_short hi_flags; /* status bits, see below */ 258 }; 259 260 extern struct hdrinfo HdrInfo[]; 261 262 /* bits for h_flags and hi_flags */ 263 # define H_EOH 0x0001 /* this field terminates header */ 264 # define H_RCPT 0x0002 /* contains recipient addresses */ 265 # define H_DEFAULT 0x0004 /* if another value is found, drop this */ 266 # define H_RESENT 0x0008 /* this address is a "Resent-..." address */ 267 # define H_CHECK 0x0010 /* check h_mflags against m_flags */ 268 # define H_ACHECK 0x0020 /* ditto, but always (not just default) */ 269 # define H_FORCE 0x0040 /* force this field, even if default */ 270 # define H_TRACE 0x0080 /* this field contains trace information */ 271 # define H_FROM 0x0100 /* this is a from-type field */ 272 # define H_VALID 0x0200 /* this field has a validated value */ 273 # define H_RECEIPTTO 0x0400 /* this field has return receipt info */ 274 # define H_ERRORSTO 0x0800 /* this field has error address info */ 275 # define H_CTE 0x1000 /* this field is a content-transfer-encoding */ 276 # define H_CTYPE 0x2000 /* this is a content-type field */ 277 # define H_STRIPVAL 0x4000 /* strip value from header (Bcc:) */ 278 /* 279 ** Information about currently open connections to mailers, or to 280 ** hosts that we have looked up recently. 281 */ 282 283 # define MCI struct mailer_con_info 284 285 MCI 286 { 287 short mci_flags; /* flag bits, see below */ 288 short mci_errno; /* error number on last connection */ 289 short mci_herrno; /* h_errno from last DNS lookup */ 290 short mci_exitstat; /* exit status from last connection */ 291 short mci_state; /* SMTP state */ 292 long mci_maxsize; /* max size this server will accept */ 293 FILE *mci_in; /* input side of connection */ 294 FILE *mci_out; /* output side of connection */ 295 int mci_pid; /* process id of subordinate proc */ 296 char *mci_phase; /* SMTP phase string */ 297 struct mailer *mci_mailer; /* ptr to the mailer for this conn */ 298 char *mci_host; /* host name */ 299 char *mci_status; /* DSN status to be copied to addrs */ 300 time_t mci_lastuse; /* last usage time */ 301 }; 302 303 304 /* flag bits */ 305 #define MCIF_VALID 0x0001 /* this entry is valid */ 306 #define MCIF_TEMP 0x0002 /* don't cache this connection */ 307 #define MCIF_CACHED 0x0004 /* currently in open cache */ 308 #define MCIF_ESMTP 0x0008 /* this host speaks ESMTP */ 309 #define MCIF_EXPN 0x0010 /* EXPN command supported */ 310 #define MCIF_SIZE 0x0020 /* SIZE option supported */ 311 #define MCIF_8BITMIME 0x0040 /* BODY=8BITMIME supported */ 312 #define MCIF_7BIT 0x0080 /* strip this message to 7 bits */ 313 #define MCIF_MULTSTAT 0x0100 /* MAIL11V3: handles MULT status */ 314 #define MCIF_INHEADER 0x0200 /* currently outputing header */ 315 #define MCIF_CVT8TO7 0x0400 /* convert from 8 to 7 bits */ 316 #define MCIF_DSN 0x0800 /* DSN extension supported */ 317 #define MCIF_8BITOK 0x1000 /* OK to send 8 bit characters */ 318 319 /* states */ 320 #define MCIS_CLOSED 0 /* no traffic on this connection */ 321 #define MCIS_OPENING 1 /* sending initial protocol */ 322 #define MCIS_OPEN 2 /* open, initial protocol sent */ 323 #define MCIS_ACTIVE 3 /* message being sent */ 324 #define MCIS_QUITING 4 /* running quit protocol */ 325 #define MCIS_SSD 5 /* service shutting down */ 326 #define MCIS_ERROR 6 /* I/O error on connection */ 327 /* 328 ** Envelope structure. 329 ** This structure defines the message itself. There is usually 330 ** only one of these -- for the message that we originally read 331 ** and which is our primary interest -- but other envelopes can 332 ** be generated during processing. For example, error messages 333 ** will have their own envelope. 334 */ 335 336 # define ENVELOPE struct envelope 337 338 ENVELOPE 339 { 340 HDR *e_header; /* head of header list */ 341 long e_msgpriority; /* adjusted priority of this message */ 342 time_t e_ctime; /* time message appeared in the queue */ 343 char *e_to; /* the target person */ 344 char *e_receiptto; /* return receipt address */ 345 ADDRESS e_from; /* the person it is from */ 346 char *e_sender; /* e_from.q_paddr w comments stripped */ 347 char **e_fromdomain; /* the domain part of the sender */ 348 ADDRESS *e_sendqueue; /* list of message recipients */ 349 ADDRESS *e_errorqueue; /* the queue for error responses */ 350 long e_msgsize; /* size of the message in bytes */ 351 long e_flags; /* flags, see below */ 352 int e_nrcpts; /* number of recipients */ 353 short e_class; /* msg class (priority, junk, etc.) */ 354 short e_hopcount; /* number of times processed */ 355 short e_nsent; /* number of sends since checkpoint */ 356 short e_sendmode; /* message send mode */ 357 short e_errormode; /* error return mode */ 358 short e_timeoutclass; /* message timeout class */ 359 int (*e_puthdr)__P((MCI *, HDR *, ENVELOPE *)); 360 /* function to put header of message */ 361 int (*e_putbody)__P((MCI *, ENVELOPE *, char *)); 362 /* function to put body of message */ 363 struct envelope *e_parent; /* the message this one encloses */ 364 struct envelope *e_sibling; /* the next envelope of interest */ 365 char *e_bodytype; /* type of message body */ 366 FILE *e_dfp; /* temporary file */ 367 char *e_id; /* code for this entry in queue */ 368 FILE *e_xfp; /* transcript file */ 369 FILE *e_lockfp; /* the lock file for this message */ 370 char *e_message; /* error message */ 371 char *e_statmsg; /* stat msg (changes per delivery) */ 372 char *e_msgboundary; /* MIME-style message part boundary */ 373 char *e_origrcpt; /* original recipient (one only) */ 374 char *e_envid; /* envelope id from MAIL FROM: line */ 375 time_t e_dtime; /* time of last delivery attempt */ 376 int e_ntries; /* number of delivery attempts */ 377 dev_t e_dfdev; /* df file's device, for crash recov */ 378 ino_t e_dfino; /* df file's ino, for crash recovery */ 379 char *e_macro[256]; /* macro definitions */ 380 }; 381 382 /* values for e_flags */ 383 #define EF_OLDSTYLE 0x0000001 /* use spaces (not commas) in hdrs */ 384 #define EF_INQUEUE 0x0000002 /* this message is fully queued */ 385 #define EF_NO_BODY_RETN 0x0000004 /* omit message body on error */ 386 #define EF_CLRQUEUE 0x0000008 /* disk copy is no longer needed */ 387 #define EF_SENDRECEIPT 0x0000010 /* send a return receipt */ 388 #define EF_FATALERRS 0x0000020 /* fatal errors occured */ 389 #define EF_KEEPQUEUE 0x0000040 /* keep queue files always */ 390 #define EF_RESPONSE 0x0000080 /* this is an error or return receipt */ 391 #define EF_RESENT 0x0000100 /* this message is being forwarded */ 392 #define EF_VRFYONLY 0x0000200 /* verify only (don't expand aliases) */ 393 #define EF_WARNING 0x0000400 /* warning message has been sent */ 394 #define EF_QUEUERUN 0x0000800 /* this envelope is from queue */ 395 #define EF_GLOBALERRS 0x0001000 /* treat errors as global */ 396 #define EF_PM_NOTIFY 0x0002000 /* send return mail to postmaster */ 397 #define EF_METOO 0x0004000 /* send to me too */ 398 #define EF_LOGSENDER 0x0008000 /* need to log the sender */ 399 #define EF_NORECEIPT 0x0010000 /* suppress all return-receipts */ 400 #define EF_HAS8BIT 0x0020000 /* at least one 8-bit char in body */ 401 #define EF_NL_NOT_EOL 0x0040000 /* don't accept raw NL as EOLine */ 402 #define EF_CRLF_NOT_EOL 0x0080000 /* don't accept CR-LF as EOLine */ 403 #define EF_RET_PARAM 0x0100000 /* RCPT command had RET argument */ 404 #define EF_HAS_DF 0x0200000 /* set when df file is instantiated */ 405 406 EXTERN ENVELOPE *CurEnv; /* envelope currently being processed */ 407 /* 408 ** Message priority classes. 409 ** 410 ** The message class is read directly from the Priority: header 411 ** field in the message. 412 ** 413 ** CurEnv->e_msgpriority is the number of bytes in the message plus 414 ** the creation time (so that jobs ``tend'' to be ordered correctly), 415 ** adjusted by the message class, the number of recipients, and the 416 ** amount of time the message has been sitting around. This number 417 ** is used to order the queue. Higher values mean LOWER priority. 418 ** 419 ** Each priority class point is worth WkClassFact priority points; 420 ** each recipient is worth WkRecipFact priority points. Each time 421 ** we reprocess a message the priority is adjusted by WkTimeFact. 422 ** WkTimeFact should normally decrease the priority so that jobs 423 ** that have historically failed will be run later; thanks go to 424 ** Jay Lepreau at Utah for pointing out the error in my thinking. 425 ** 426 ** The "class" is this number, unadjusted by the age or size of 427 ** this message. Classes with negative representations will have 428 ** error messages thrown away if they are not local. 429 */ 430 431 struct priority 432 { 433 char *pri_name; /* external name of priority */ 434 int pri_val; /* internal value for same */ 435 }; 436 437 EXTERN struct priority Priorities[MAXPRIORITIES]; 438 EXTERN int NumPriorities; /* pointer into Priorities */ 439 /* 440 ** Rewrite rules. 441 */ 442 443 struct rewrite 444 { 445 char **r_lhs; /* pattern match */ 446 char **r_rhs; /* substitution value */ 447 struct rewrite *r_next;/* next in chain */ 448 }; 449 450 EXTERN struct rewrite *RewriteRules[MAXRWSETS]; 451 452 /* 453 ** Special characters in rewriting rules. 454 ** These are used internally only. 455 ** The COND* rules are actually used in macros rather than in 456 ** rewriting rules, but are given here because they 457 ** cannot conflict. 458 */ 459 460 /* left hand side items */ 461 # define MATCHZANY ((u_char)0220) /* match zero or more tokens */ 462 # define MATCHANY ((u_char)0221) /* match one or more tokens */ 463 # define MATCHONE ((u_char)0222) /* match exactly one token */ 464 # define MATCHCLASS ((u_char)0223) /* match one token in a class */ 465 # define MATCHNCLASS ((u_char)0224) /* match anything not in class */ 466 # define MATCHREPL ((u_char)0225) /* replacement on RHS for above */ 467 468 /* right hand side items */ 469 # define CANONNET ((u_char)0226) /* canonical net, next token */ 470 # define CANONHOST ((u_char)0227) /* canonical host, next token */ 471 # define CANONUSER ((u_char)0230) /* canonical user, next N tokens */ 472 # define CALLSUBR ((u_char)0231) /* call another rewriting set */ 473 474 /* conditionals in macros */ 475 # define CONDIF ((u_char)0232) /* conditional if-then */ 476 # define CONDELSE ((u_char)0233) /* conditional else */ 477 # define CONDFI ((u_char)0234) /* conditional fi */ 478 479 /* bracket characters for host name lookup */ 480 # define HOSTBEGIN ((u_char)0235) /* hostname lookup begin */ 481 # define HOSTEND ((u_char)0236) /* hostname lookup end */ 482 483 /* bracket characters for generalized lookup */ 484 # define LOOKUPBEGIN ((u_char)0205) /* generalized lookup begin */ 485 # define LOOKUPEND ((u_char)0206) /* generalized lookup end */ 486 487 /* macro substitution character */ 488 # define MACROEXPAND ((u_char)0201) /* macro expansion */ 489 # define MACRODEXPAND ((u_char)0202) /* deferred macro expansion */ 490 491 /* to make the code clearer */ 492 # define MATCHZERO CANONHOST 493 494 /* external <==> internal mapping table */ 495 struct metamac 496 { 497 char metaname; /* external code (after $) */ 498 u_char metaval; /* internal code (as above) */ 499 }; 500 /* 501 ** Name canonification short circuit. 502 ** 503 ** If the name server for a host is down, the process of trying to 504 ** canonify the name can hang. This is similar to (but alas, not 505 ** identical to) looking up the name for delivery. This stab type 506 ** caches the result of the name server lookup so we don't hang 507 ** multiple times. 508 */ 509 510 #define NAMECANON struct _namecanon 511 512 NAMECANON 513 { 514 short nc_errno; /* cached errno */ 515 short nc_herrno; /* cached h_errno */ 516 short nc_stat; /* cached exit status code */ 517 short nc_flags; /* flag bits */ 518 char *nc_cname; /* the canonical name */ 519 }; 520 521 /* values for nc_flags */ 522 #define NCF_VALID 0x0001 /* entry valid */ 523 /* 524 ** Mapping functions 525 ** 526 ** These allow arbitrary mappings in the config file. The idea 527 ** (albeit not the implementation) comes from IDA sendmail. 528 */ 529 530 # define MAPCLASS struct _mapclass 531 # define MAP struct _map 532 # define MAXMAPACTIONS 3 /* size of map_actions array */ 533 534 535 /* 536 ** An actual map. 537 */ 538 539 MAP 540 { 541 MAPCLASS *map_class; /* the class of this map */ 542 char *map_mname; /* name of this map */ 543 long map_mflags; /* flags, see below */ 544 char *map_file; /* the (nominal) filename */ 545 ARBPTR_T map_db1; /* the open database ptr */ 546 ARBPTR_T map_db2; /* an "extra" database pointer */ 547 char *map_keycolnm; /* key column name */ 548 char *map_valcolnm; /* value column name */ 549 u_char map_keycolno; /* key column number */ 550 u_char map_valcolno; /* value column number */ 551 char map_coldelim; /* column delimiter */ 552 char *map_app; /* to append to successful matches */ 553 char *map_domain; /* the (nominal) NIS domain */ 554 char *map_rebuild; /* program to run to do auto-rebuild */ 555 time_t map_mtime; /* last database modification time */ 556 MAP *map_stack[MAXMAPSTACK]; /* list for stacked maps */ 557 short map_return[MAXMAPACTIONS]; /* return bitmaps for stacked maps */ 558 }; 559 560 /* bit values for map_mflags */ 561 # define MF_VALID 0x00000001 /* this entry is valid */ 562 # define MF_INCLNULL 0x00000002 /* include null byte in key */ 563 # define MF_OPTIONAL 0x00000004 /* don't complain if map not found */ 564 # define MF_NOFOLDCASE 0x00000008 /* don't fold case in keys */ 565 # define MF_MATCHONLY 0x00000010 /* don't use the map value */ 566 # define MF_OPEN 0x00000020 /* this entry is open */ 567 # define MF_WRITABLE 0x00000040 /* open for writing */ 568 # define MF_ALIAS 0x00000080 /* this is an alias file */ 569 # define MF_TRY0NULL 0x00000100 /* try with no null byte */ 570 # define MF_TRY1NULL 0x00000200 /* try with the null byte */ 571 # define MF_LOCKED 0x00000400 /* this map is currently locked */ 572 # define MF_ALIASWAIT 0x00000800 /* alias map in aliaswait state */ 573 # define MF_IMPL_HASH 0x00001000 /* implicit: underlying hash database */ 574 # define MF_IMPL_NDBM 0x00002000 /* implicit: underlying NDBM database */ 575 # define MF_UNSAFEDB 0x00004000 /* this map is world writable */ 576 # define MF_APPEND 0x00008000 /* append new entry on rebuiled */ 577 578 /* indices for map_actions */ 579 # define MA_NOTFOUND 0 /* member map returned "not found" */ 580 # define MA_UNAVAIL 1 /* member map is not available */ 581 # define MA_TRYAGAIN 2 /* member map returns temp failure */ 582 583 /* 584 ** The class of a map -- essentially the functions to call 585 */ 586 587 MAPCLASS 588 { 589 char *map_cname; /* name of this map class */ 590 char *map_ext; /* extension for database file */ 591 short map_cflags; /* flag bits, see below */ 592 bool (*map_parse)__P((MAP *, char *)); 593 /* argument parsing function */ 594 char *(*map_lookup)__P((MAP *, char *, char **, int *)); 595 /* lookup function */ 596 void (*map_store)__P((MAP *, char *, char *)); 597 /* store function */ 598 bool (*map_open)__P((MAP *, int)); 599 /* open function */ 600 void (*map_close)__P((MAP *)); 601 /* close function */ 602 }; 603 604 /* bit values for map_cflags */ 605 #define MCF_ALIASOK 0x0001 /* can be used for aliases */ 606 #define MCF_ALIASONLY 0x0002 /* usable only for aliases */ 607 #define MCF_REBUILDABLE 0x0004 /* can rebuild alias files */ 608 #define MCF_OPTFILE 0x0008 /* file name is optional */ 609 /* 610 ** Symbol table definitions 611 */ 612 613 struct symtab 614 { 615 char *s_name; /* name to be entered */ 616 char s_type; /* general type (see below) */ 617 struct symtab *s_next; /* pointer to next in chain */ 618 union 619 { 620 BITMAP sv_class; /* bit-map of word classes */ 621 ADDRESS *sv_addr; /* pointer to address header */ 622 MAILER *sv_mailer; /* pointer to mailer */ 623 char *sv_alias; /* alias */ 624 MAPCLASS sv_mapclass; /* mapping function class */ 625 MAP sv_map; /* mapping function */ 626 char *sv_hostsig; /* host signature */ 627 MCI sv_mci; /* mailer connection info */ 628 NAMECANON sv_namecanon; /* canonical name cache */ 629 int sv_macro; /* macro name => id mapping */ 630 int sv_ruleset; /* ruleset index */ 631 } s_value; 632 }; 633 634 typedef struct symtab STAB; 635 636 /* symbol types */ 637 # define ST_UNDEF 0 /* undefined type */ 638 # define ST_CLASS 1 /* class map */ 639 # define ST_ADDRESS 2 /* an address in parsed format */ 640 # define ST_MAILER 3 /* a mailer header */ 641 # define ST_ALIAS 4 /* an alias */ 642 # define ST_MAPCLASS 5 /* mapping function class */ 643 # define ST_MAP 6 /* mapping function */ 644 # define ST_HOSTSIG 7 /* host signature */ 645 # define ST_NAMECANON 8 /* cached canonical name */ 646 # define ST_MACRO 9 /* macro name to id mapping */ 647 # define ST_RULESET 10 /* ruleset index */ 648 # define ST_MCI 16 /* mailer connection info (offset) */ 649 650 # define s_class s_value.sv_class 651 # define s_address s_value.sv_addr 652 # define s_mailer s_value.sv_mailer 653 # define s_alias s_value.sv_alias 654 # define s_mci s_value.sv_mci 655 # define s_mapclass s_value.sv_mapclass 656 # define s_hostsig s_value.sv_hostsig 657 # define s_map s_value.sv_map 658 # define s_namecanon s_value.sv_namecanon 659 # define s_macro s_value.sv_macro 660 # define s_ruleset s_value.sv_ruleset 661 662 extern STAB *stab __P((char *, int, int)); 663 extern void stabapply __P((void (*)(STAB *, int), int)); 664 665 /* opcodes to stab */ 666 # define ST_FIND 0 /* find entry */ 667 # define ST_ENTER 1 /* enter if not there */ 668 /* 669 ** STRUCT EVENT -- event queue. 670 ** 671 ** Maintained in sorted order. 672 ** 673 ** We store the pid of the process that set this event to insure 674 ** that when we fork we will not take events intended for the parent. 675 */ 676 677 struct event 678 { 679 time_t ev_time; /* time of the function call */ 680 void (*ev_func)__P((int)); 681 /* function to call */ 682 int ev_arg; /* argument to ev_func */ 683 int ev_pid; /* pid that set this event */ 684 struct event *ev_link; /* link to next item */ 685 }; 686 687 typedef struct event EVENT; 688 689 EXTERN EVENT *EventQueue; /* head of event queue */ 690 /* 691 ** Operation, send, error, and MIME modes 692 ** 693 ** The operation mode describes the basic operation of sendmail. 694 ** This can be set from the command line, and is "send mail" by 695 ** default. 696 ** 697 ** The send mode tells how to send mail. It can be set in the 698 ** configuration file. It's setting determines how quickly the 699 ** mail will be delivered versus the load on your system. If the 700 ** -v (verbose) flag is given, it will be forced to SM_DELIVER 701 ** mode. 702 ** 703 ** The error mode tells how to return errors. 704 */ 705 706 EXTERN char OpMode; /* operation mode, see below */ 707 708 #define MD_DELIVER 'm' /* be a mail sender */ 709 #define MD_SMTP 's' /* run SMTP on standard input */ 710 #define MD_ARPAFTP 'a' /* obsolete ARPANET mode (Grey Book) */ 711 #define MD_DAEMON 'd' /* run as a daemon */ 712 #define MD_VERIFY 'v' /* verify: don't collect or deliver */ 713 #define MD_TEST 't' /* test mode: resolve addrs only */ 714 #define MD_INITALIAS 'i' /* initialize alias database */ 715 #define MD_PRINT 'p' /* print the queue */ 716 #define MD_FREEZE 'z' /* freeze the configuration file */ 717 718 719 /* values for e_sendmode -- send modes */ 720 #define SM_DELIVER 'i' /* interactive delivery */ 721 #define SM_QUICKD 'j' /* deliver w/o queueing */ 722 #define SM_FORK 'b' /* deliver in background */ 723 #define SM_QUEUE 'q' /* queue, don't deliver */ 724 #define SM_VERIFY 'v' /* verify only (used internally) */ 725 726 /* used only as a parameter to sendall */ 727 #define SM_DEFAULT '\0' /* unspecified, use SendMode */ 728 729 730 /* values for e_errormode -- error handling modes */ 731 #define EM_PRINT 'p' /* print errors */ 732 #define EM_MAIL 'm' /* mail back errors */ 733 #define EM_WRITE 'w' /* write back errors */ 734 #define EM_BERKNET 'e' /* special berknet processing */ 735 #define EM_QUIET 'q' /* don't print messages (stat only) */ 736 737 738 /* MIME processing mode */ 739 EXTERN int MimeMode; 740 741 /* bit values for MimeMode */ 742 #define MM_CVTMIME 0x0001 /* convert 8 to 7 bit MIME */ 743 #define MM_PASS8BIT 0x0002 /* just send 8 bit data blind */ 744 #define MM_MIME8BIT 0x0004 /* convert 8-bit data to MIME */ 745 746 /* queue sorting order algorithm */ 747 EXTERN int QueueSortOrder; 748 749 #define QS_BYPRIORITY 0 /* sort by message priority */ 750 #define QS_BYHOST 1 /* sort by first host name */ 751 752 753 /* how to handle messages without any recipient addresses */ 754 EXTERN int NoRecipientAction; 755 756 #define NRA_NO_ACTION 0 /* just leave it as is */ 757 #define NRA_ADD_TO 1 /* add To: header */ 758 #define NRA_ADD_APPARENTLY_TO 2 /* add Apparently-To: header */ 759 #define NRA_ADD_BCC 3 /* add empty Bcc: header */ 760 #define NRA_ADD_TO_UNDISCLOSED 4 /* add To: undisclosed:; header */ 761 /* 762 ** Additional definitions 763 */ 764 765 766 /* 767 ** Privacy flags 768 ** These are bit values for the PrivacyFlags word. 769 */ 770 771 #define PRIV_PUBLIC 0 /* what have I got to hide? */ 772 #define PRIV_NEEDMAILHELO 0x0001 /* insist on HELO for MAIL, at least */ 773 #define PRIV_NEEDEXPNHELO 0x0002 /* insist on HELO for EXPN */ 774 #define PRIV_NEEDVRFYHELO 0x0004 /* insist on HELO for VRFY */ 775 #define PRIV_NOEXPN 0x0008 /* disallow EXPN command entirely */ 776 #define PRIV_NOVRFY 0x0010 /* disallow VRFY command entirely */ 777 #define PRIV_AUTHWARNINGS 0x0020 /* flag possible authorization probs */ 778 #define PRIV_NORECEIPTS 0x0040 /* disallow return receipts */ 779 #define PRIV_RESTRICTMAILQ 0x1000 /* restrict mailq command */ 780 #define PRIV_RESTRICTQRUN 0x2000 /* restrict queue run */ 781 #define PRIV_GOAWAY 0x0fff /* don't give no info, anyway, anyhow */ 782 783 /* struct defining such things */ 784 struct prival 785 { 786 char *pv_name; /* name of privacy flag */ 787 int pv_flag; /* numeric level */ 788 }; 789 790 791 /* 792 ** Flags passed to remotename, parseaddr, allocaddr, and buildaddr. 793 */ 794 795 #define RF_SENDERADDR 0x001 /* this is a sender address */ 796 #define RF_HEADERADDR 0x002 /* this is a header address */ 797 #define RF_CANONICAL 0x004 /* strip comment information */ 798 #define RF_ADDDOMAIN 0x008 /* OK to do domain extension */ 799 #define RF_COPYPARSE 0x010 /* copy parsed user & host */ 800 #define RF_COPYPADDR 0x020 /* copy print address */ 801 #define RF_COPYALL (RF_COPYPARSE|RF_COPYPADDR) 802 #define RF_COPYNONE 0 803 804 805 /* 806 ** Flags passed to safefile. 807 */ 808 809 #define SFF_ANYFILE 0 /* no special restrictions */ 810 #define SFF_MUSTOWN 0x0001 /* user must own this file */ 811 #define SFF_NOSLINK 0x0002 /* file cannot be a symbolic link */ 812 #define SFF_ROOTOK 0x0004 /* ok for root to own this file */ 813 #define SFF_NOPATHCHECK 0x0010 /* don't bother checking dir path */ 814 #define SFF_SETUIDOK 0x0020 /* setuid files are ok */ 815 #define SFF_CREAT 0x0040 /* ok to create file if necessary */ 816 #define SFF_REGONLY 0x0080 /* regular files only */ 817 818 /* flags that are actually specific to safefopen */ 819 #define SFF_OPENASROOT 0x1000 /* open as root instead of real user */ 820 821 822 /* 823 ** Flags passed to mime8to7. 824 */ 825 826 #define M87F_OUTER 0 /* outer context */ 827 #define M87F_NO8BIT 0x0001 /* can't have 8-bit in this section */ 828 829 830 /* 831 ** Regular UNIX sockaddrs are too small to handle ISO addresses, so 832 ** we are forced to declare a supertype here. 833 */ 834 835 union bigsockaddr 836 { 837 struct sockaddr sa; /* general version */ 838 #ifdef NETUNIX 839 struct sockaddr_un sunix; /* UNIX family */ 840 #endif 841 #ifdef NETINET 842 struct sockaddr_in sin; /* INET family */ 843 #endif 844 #ifdef NETISO 845 struct sockaddr_iso siso; /* ISO family */ 846 #endif 847 #ifdef NETNS 848 struct sockaddr_ns sns; /* XNS family */ 849 #endif 850 #ifdef NETX25 851 struct sockaddr_x25 sx25; /* X.25 family */ 852 #endif 853 }; 854 855 #define SOCKADDR union bigsockaddr 856 857 858 /* 859 ** Vendor codes 860 ** 861 ** Vendors can customize sendmail to add special behaviour, 862 ** generally for back compatibility. Ideally, this should 863 ** be set up in the .cf file using the "V" command. However, 864 ** it's quite reasonable for some vendors to want the default 865 ** be their old version; this can be set using 866 ** -DVENDOR_DEFAULT=VENDOR_xxx 867 ** in the Makefile. 868 ** 869 ** Vendors should apply to sendmail@CS.Berkeley.EDU for 870 ** unique vendor codes. 871 */ 872 873 #define VENDOR_BERKELEY 1 /* Berkeley-native configuration file */ 874 #define VENDOR_SUN 2 /* Sun-native configuration file */ 875 876 EXTERN int VendorCode; /* vendor-specific operation enhancements */ 877 /* 878 ** Global variables. 879 */ 880 881 EXTERN bool FromFlag; /* if set, "From" person is explicit */ 882 EXTERN bool MeToo; /* send to the sender also */ 883 EXTERN bool IgnrDot; /* don't let dot end messages */ 884 EXTERN bool SaveFrom; /* save leading "From" lines */ 885 EXTERN bool Verbose; /* set if blow-by-blow desired */ 886 EXTERN bool GrabTo; /* if set, get recipients from msg */ 887 EXTERN bool SuprErrs; /* set if we are suppressing errors */ 888 EXTERN bool HoldErrs; /* only output errors to transcript */ 889 EXTERN bool NoConnect; /* don't connect to non-local mailers */ 890 EXTERN bool SuperSafe; /* be extra careful, even if expensive */ 891 EXTERN bool ForkQueueRuns; /* fork for each job when running the queue */ 892 EXTERN bool AutoRebuild; /* auto-rebuild the alias database as needed */ 893 EXTERN bool CheckAliases; /* parse addresses during newaliases */ 894 EXTERN bool NoAlias; /* suppress aliasing */ 895 EXTERN bool UseNameServer; /* using DNS -- interpret h_errno & MX RRs */ 896 EXTERN bool UseHesiod; /* using Hesiod -- interpret Hesiod errors */ 897 EXTERN bool SevenBitInput; /* force 7-bit data on input */ 898 EXTERN bool HasEightBits; /* has at least one eight bit input byte */ 899 EXTERN time_t SafeAlias; /* interval to wait until @:@ in alias file */ 900 EXTERN FILE *InChannel; /* input connection */ 901 EXTERN FILE *OutChannel; /* output connection */ 902 EXTERN uid_t RealUid; /* when Daemon, real uid of caller */ 903 EXTERN gid_t RealGid; /* when Daemon, real gid of caller */ 904 EXTERN uid_t DefUid; /* default uid to run as */ 905 EXTERN gid_t DefGid; /* default gid to run as */ 906 EXTERN char *DefUser; /* default user to run as (from DefUid) */ 907 EXTERN int OldUmask; /* umask when sendmail starts up */ 908 EXTERN int Errors; /* set if errors (local to single pass) */ 909 EXTERN int ExitStat; /* exit status code */ 910 EXTERN int LineNumber; /* line number in current input */ 911 EXTERN int LogLevel; /* level of logging to perform */ 912 EXTERN int FileMode; /* mode on files */ 913 EXTERN int QueueLA; /* load average starting forced queueing */ 914 EXTERN int RefuseLA; /* load average refusing connections are */ 915 EXTERN int CurrentLA; /* current load average */ 916 EXTERN long QueueFactor; /* slope of queue function */ 917 EXTERN time_t QueueIntvl; /* intervals between running the queue */ 918 EXTERN char *HelpFile; /* location of SMTP help file */ 919 EXTERN char *ErrMsgFile; /* file to prepend to all error messages */ 920 EXTERN char *StatFile; /* location of statistics summary */ 921 EXTERN char *QueueDir; /* location of queue directory */ 922 EXTERN char *FileName; /* name to print on error messages */ 923 EXTERN char *SmtpPhase; /* current phase in SMTP processing */ 924 EXTERN char *MyHostName; /* name of this host for SMTP messages */ 925 EXTERN char *RealHostName; /* name of host we are talking to */ 926 EXTERN SOCKADDR RealHostAddr; /* address of host we are talking to */ 927 EXTERN char *CurHostName; /* current host we are dealing with */ 928 EXTERN jmp_buf TopFrame; /* branch-to-top-of-loop-on-error frame */ 929 EXTERN bool QuickAbort; /* .... but only if we want a quick abort */ 930 EXTERN bool LogUsrErrs; /* syslog user errors (e.g., SMTP RCPT cmd) */ 931 EXTERN bool SendMIMEErrors; /* send error messages in MIME format */ 932 EXTERN bool MatchGecos; /* look for user names in gecos field */ 933 EXTERN bool UseErrorsTo; /* use Errors-To: header (back compat) */ 934 EXTERN bool TryNullMXList; /* if we are the best MX, try host directly */ 935 EXTERN bool InChild; /* true if running in an SMTP subprocess */ 936 EXTERN bool DisConnected; /* running with OutChannel redirected to xf */ 937 EXTERN char SpaceSub; /* substitution for <lwsp> */ 938 EXTERN int PrivacyFlags; /* privacy flags */ 939 EXTERN char *ConfFile; /* location of configuration file [conf.c] */ 940 extern char *PidFile; /* location of proc id file [conf.c] */ 941 extern ADDRESS NullAddress; /* a null (template) address [main.c] */ 942 EXTERN long WkClassFact; /* multiplier for message class -> priority */ 943 EXTERN long WkRecipFact; /* multiplier for # of recipients -> priority */ 944 EXTERN long WkTimeFact; /* priority offset each time this job is run */ 945 EXTERN char *UdbSpec; /* user database source spec */ 946 EXTERN int MaxHopCount; /* max # of hops until bounce */ 947 EXTERN int ConfigLevel; /* config file level */ 948 EXTERN char *TimeZoneSpec; /* override time zone specification */ 949 EXTERN char *ForwardPath; /* path to search for .forward files */ 950 EXTERN long MinBlocksFree; /* min # of blocks free on queue fs */ 951 EXTERN char *FallBackMX; /* fall back MX host */ 952 EXTERN long MaxMessageSize; /* advertised max size we will accept */ 953 EXTERN time_t MaxHostStatAge; /* max age of cached host status info */ 954 EXTERN time_t MinQueueAge; /* min delivery interval */ 955 EXTERN time_t DialDelay; /* delay between dial-on-demand tries */ 956 EXTERN char *SafeFileEnv; /* chroot location for file delivery */ 957 EXTERN char *ServiceSwitchFile; /* backup service switch */ 958 EXTERN char *DefaultCharSet; /* default character set for MIME */ 959 EXTERN int DeliveryNiceness; /* how nice to be during delivery */ 960 EXTERN char *PostMasterCopy; /* address to get errs cc's */ 961 EXTERN int CheckpointInterval; /* queue file checkpoint interval */ 962 EXTERN bool DontPruneRoutes; /* don't prune source routes */ 963 EXTERN bool BrokenSmtpPeers; /* peers can't handle 2-line greeting */ 964 EXTERN int MaxMciCache; /* maximum entries in MCI cache */ 965 EXTERN time_t MciCacheTimeout; /* maximum idle time on connections */ 966 EXTERN char *QueueLimitRecipient; /* limit queue runs to this recipient */ 967 EXTERN char *QueueLimitSender; /* limit queue runs to this sender */ 968 EXTERN char *QueueLimitId; /* limit queue runs to this id */ 969 EXTERN FILE *TrafficLogFile; /* file in which to log all traffic */ 970 extern int errno; 971 972 973 /* 974 ** Timeouts 975 ** 976 ** Indicated values are the MINIMUM per RFC 1123 section 5.3.2. 977 */ 978 979 EXTERN struct 980 { 981 /* RFC 1123-specified timeouts [minimum value] */ 982 time_t to_initial; /* initial greeting timeout [5m] */ 983 time_t to_mail; /* MAIL command [5m] */ 984 time_t to_rcpt; /* RCPT command [5m] */ 985 time_t to_datainit; /* DATA initiation [2m] */ 986 time_t to_datablock; /* DATA block [3m] */ 987 time_t to_datafinal; /* DATA completion [10m] */ 988 time_t to_nextcommand; /* next command [5m] */ 989 /* following timeouts are not mentioned in RFC 1123 */ 990 time_t to_rset; /* RSET command */ 991 time_t to_helo; /* HELO command */ 992 time_t to_quit; /* QUIT command */ 993 time_t to_miscshort; /* misc short commands (NOOP, VERB, etc) */ 994 time_t to_ident; /* IDENT protocol requests */ 995 time_t to_fileopen; /* opening :include: and .forward files */ 996 /* following are per message */ 997 time_t to_q_return[MAXTOCLASS]; /* queue return timeouts */ 998 time_t to_q_warning[MAXTOCLASS]; /* queue warning timeouts */ 999 } TimeOuts; 1000 1001 /* timeout classes for return and warning timeouts */ 1002 # define TOC_NORMAL 0 /* normal delivery */ 1003 # define TOC_URGENT 1 /* urgent delivery */ 1004 # define TOC_NONURGENT 2 /* non-urgent delivery */ 1005 1006 1007 /* 1008 ** Trace information 1009 */ 1010 1011 /* trace vector and macros for debugging flags */ 1012 EXTERN u_char tTdvect[100]; 1013 # define tTd(flag, level) (tTdvect[flag] >= level) 1014 # define tTdlevel(flag) (tTdvect[flag]) 1015 /* 1016 ** Miscellaneous information. 1017 */ 1018 1019 1020 1021 /* 1022 ** Some in-line functions 1023 */ 1024 1025 /* set exit status */ 1026 #define setstat(s) { \ 1027 if (ExitStat == EX_OK || ExitStat == EX_TEMPFAIL) \ 1028 ExitStat = s; \ 1029 } 1030 1031 /* make a copy of a string */ 1032 #define newstr(s) strcpy(xalloc(strlen(s) + 1), s) 1033 1034 #define STRUCTCOPY(s, d) d = s 1035 1036 1037 /* 1038 ** Declarations of useful functions 1039 */ 1040 1041 extern ADDRESS *parseaddr __P((char *, ADDRESS *, int, int, char **, ENVELOPE *)); 1042 extern char *xalloc __P((int)); 1043 extern bool sameaddr __P((ADDRESS *, ADDRESS *)); 1044 extern FILE *dfopen __P((char *, int, int)); 1045 extern EVENT *setevent __P((time_t, void(*)(), int)); 1046 extern char *sfgets __P((char *, int, FILE *, time_t, char *)); 1047 extern char *queuename __P((ENVELOPE *, int)); 1048 extern time_t curtime __P(()); 1049 extern bool transienterror __P((int)); 1050 extern const char *errstring __P((int)); 1051 extern void expand __P((char *, char *, size_t, ENVELOPE *)); 1052 extern void define __P((int, char *, ENVELOPE *)); 1053 extern char *macvalue __P((int, ENVELOPE *)); 1054 extern char *macname __P((int)); 1055 extern int macid __P((char *, char **)); 1056 extern char **prescan __P((char *, int, char[], int, char **)); 1057 extern int rewrite __P((char **, int, int, ENVELOPE *)); 1058 extern char *fgetfolded __P((char *, int, FILE *)); 1059 extern ADDRESS *recipient __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1060 extern ENVELOPE *newenvelope __P((ENVELOPE *, ENVELOPE *)); 1061 extern void dropenvelope __P((ENVELOPE *)); 1062 extern void clearenvelope __P((ENVELOPE *, int)); 1063 extern char *username __P(()); 1064 extern MCI *mci_get __P((char *, MAILER *)); 1065 extern char *pintvl __P((time_t, int)); 1066 extern char *map_rewrite __P((MAP *, char *, int, char **)); 1067 extern ADDRESS *getctladdr __P((ADDRESS *)); 1068 extern char *anynet_ntoa __P((SOCKADDR *)); 1069 extern char *remotename __P((char *, MAILER *, int, int *, ENVELOPE *)); 1070 extern bool shouldqueue __P((long, time_t)); 1071 extern bool lockfile __P((int, char *, char *, int)); 1072 extern char *hostsignature __P((MAILER *, char *, ENVELOPE *)); 1073 extern void openxscript __P((ENVELOPE *)); 1074 extern void closexscript __P((ENVELOPE *)); 1075 extern sigfunc_t setsignal __P((int, sigfunc_t)); 1076 extern char *shortenstring __P((char *, int)); 1077 extern bool usershellok __P((char *)); 1078 extern void commaize __P((HDR *, char *, int, MCI *, ENVELOPE *)); 1079 extern char *hvalue __P((char *, HDR *)); 1080 extern char *defcharset __P((ENVELOPE *)); 1081 extern bool emptyaddr __P((ADDRESS *)); 1082 extern int sendtolist __P((char *, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1083 extern bool wordinclass __P((char *, int)); 1084 extern char *denlstring __P((char *, int, int)); 1085 extern void printaddr __P((ADDRESS *, bool)); 1086 extern void makelower __P((char *)); 1087 extern void rebuildaliases __P((MAP *, bool)); 1088 extern void readaliases __P((MAP *, FILE *, bool, bool)); 1089 extern void finis __P(()); 1090 extern void clrevent __P((EVENT *)); 1091 extern void setsender __P((char *, ENVELOPE *, char **, bool)); 1092 extern FILE *safefopen __P((char *, int, int, int)); 1093 1094 /* ellipsis is a different case though */ 1095 #ifdef __STDC__ 1096 extern void auth_warning(ENVELOPE *, const char *, ...); 1097 extern void syserr(const char *, ...); 1098 extern void usrerr(const char *, ...); 1099 extern void message(const char *, ...); 1100 extern void nmessage(const char *, ...); 1101 #else 1102 extern void auth_warning(); 1103 extern void syserr(); 1104 extern void usrerr(); 1105 extern void message(); 1106 extern void nmessage(); 1107 #endif 1108