1 /* 2 * Copyright (c) 1998-2002 Sendmail, Inc. and its suppliers. 3 * All rights reserved. 4 * Copyright (c) 1983, 1995-1997 Eric P. Allman. All rights reserved. 5 * Copyright (c) 1988, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * By using this file, you agree to the terms and conditions set 9 * forth in the LICENSE file which can be found at the top level of 10 * the sendmail distribution. 11 */ 12 13 /* 14 ** SENDMAIL.H -- MTA-specific definitions for sendmail. 15 */ 16 17 #ifndef _SENDMAIL_H 18 # define _SENDMAIL_H 1 19 20 #ifdef _DEFINE 21 # define EXTERN 22 #else /* _DEFINE */ 23 # define EXTERN extern 24 #endif /* _DEFINE */ 25 26 27 #include <unistd.h> 28 29 #include <stddef.h> 30 #include <stdlib.h> 31 #include <stdio.h> 32 #include <ctype.h> 33 #include <setjmp.h> 34 #include <string.h> 35 #include <time.h> 36 # ifdef EX_OK 37 # undef EX_OK /* for SVr4.2 SMP */ 38 # endif /* EX_OK */ 39 40 #include "sendmail/sendmail.h" 41 42 /* profiling? */ 43 #if MONCONTROL 44 # define SM_PROF(x) moncontrol(x) 45 #else /* MONCONTROL */ 46 # define SM_PROF(x) 47 #endif /* MONCONTROL */ 48 49 #ifdef _DEFINE 50 # ifndef lint 51 SM_UNUSED(static char SmailId[]) = "@(#)$Id: sendmail.h,v 8.919.2.4 2002/08/16 14:56:01 ca Exp $"; 52 # endif /* ! lint */ 53 #endif /* _DEFINE */ 54 55 #include "bf.h" 56 #include "timers.h" 57 #include <sm/exc.h> 58 #include <sm/heap.h> 59 #include <sm/debug.h> 60 #include <sm/rpool.h> 61 #include <sm/io.h> 62 #include <sm/path.h> 63 #include <sm/signal.h> 64 #include <sm/clock.h> 65 #include <sm/mbdb.h> 66 #include <sm/errstring.h> 67 #include <sm/sysexits.h> 68 #include <sm/shm.h> 69 70 #ifdef LOG 71 # include <syslog.h> 72 #endif /* LOG */ 73 74 75 76 # if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 77 # include <sys/socket.h> 78 # endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */ 79 # if NETUNIX 80 # include <sys/un.h> 81 # endif /* NETUNIX */ 82 # if NETINET || NETINET6 83 # include <netinet/in.h> 84 # endif /* NETINET || NETINET6 */ 85 # if NETINET6 86 /* 87 ** There is no standard yet for IPv6 includes. 88 ** Specify OS specific implementation in conf.h 89 */ 90 # endif /* NETINET6 */ 91 # if NETISO 92 # include <netiso/iso.h> 93 # endif /* NETISO */ 94 # if NETNS 95 # include <netns/ns.h> 96 # endif /* NETNS */ 97 # if NETX25 98 # include <netccitt/x25.h> 99 # endif /* NETX25 */ 100 101 # if NAMED_BIND 102 # include <arpa/nameser.h> 103 # ifdef NOERROR 104 # undef NOERROR /* avoid <sys/streams.h> conflict */ 105 # endif /* NOERROR */ 106 # include <resolv.h> 107 # else /* NAMED_BIND */ 108 # undef SM_SET_H_ERRNO 109 # define SM_SET_H_ERRNO(err) 110 # endif /* NAMED_BIND */ 111 112 # if HESIOD 113 # include <hesiod.h> 114 # if !defined(HES_ER_OK) || defined(HESIOD_INTERFACES) 115 # define HESIOD_INIT /* support for the new interface */ 116 # endif /* !defined(HES_ER_OK) || defined(HESIOD_INTERFACES) */ 117 # endif /* HESIOD */ 118 119 #if STARTTLS 120 # include <openssl/ssl.h> 121 # if !TLS_NO_RSA 122 # define RSA_KEYLENGTH 512 123 # endif /* !TLS_NO_RSA */ 124 #endif /* STARTTLS */ 125 126 #if SASL /* include the sasl include files if we have them */ 127 128 129 # if SASL == 2 || SASL >= 20000 130 # include <sasl/sasl.h> 131 # include <sasl/saslutil.h> 132 # else /* SASL == 2 || SASL >= 20000 */ 133 # include <sasl.h> 134 # include <saslutil.h> 135 # endif /* SASL == 2 || SASL >= 20000 */ 136 # if defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) 137 # define SASL_VERSION (SASL_VERSION_MAJOR * 10000) + (SASL_VERSION_MINOR * 100) + SASL_VERSION_STEP 138 # if SASL == 1 || SASL == 2 139 # undef SASL 140 # define SASL SASL_VERSION 141 # else /* SASL == 1 || SASL == 2 */ 142 # if SASL != SASL_VERSION 143 ERROR README: -DSASL (SASL) does not agree with the version of the CYRUS_SASL library (SASL_VERSION) 144 ERROR README: see README! 145 # endif /* SASL != SASL_VERSION */ 146 # endif /* SASL == 1 || SASL == 2 */ 147 # else /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */ 148 # if SASL == 1 149 ERROR README: please set -DSASL to the version of the CYRUS_SASL library 150 ERROR README: see README! 151 # endif /* SASL == 1 */ 152 # endif /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */ 153 #endif /* SASL */ 154 155 /* 156 ** Following are "sort of" configuration constants, but they should 157 ** be pretty solid on most architectures today. They have to be 158 ** defined after <arpa/nameser.h> because some versions of that 159 ** file also define them. In all cases, we can't use sizeof because 160 ** some systems (e.g., Crays) always treat everything as being at 161 ** least 64 bits. 162 */ 163 164 #ifndef INADDRSZ 165 # define INADDRSZ 4 /* size of an IPv4 address in bytes */ 166 #endif /* ! INADDRSZ */ 167 #ifndef IN6ADDRSZ 168 # define IN6ADDRSZ 16 /* size of an IPv6 address in bytes */ 169 #endif /* ! IN6ADDRSZ */ 170 #ifndef INT16SZ 171 # define INT16SZ 2 /* size of a 16 bit integer in bytes */ 172 #endif /* ! INT16SZ */ 173 #ifndef INT32SZ 174 # define INT32SZ 4 /* size of a 32 bit integer in bytes */ 175 #endif /* ! INT32SZ */ 176 #ifndef INADDR_LOOPBACK 177 # define INADDR_LOOPBACK 0x7f000001 /* loopback address */ 178 #endif /* ! INADDR_LOOPBACK */ 179 180 /* 181 ** Error return from inet_addr(3), in case not defined in /usr/include. 182 */ 183 184 #ifndef INADDR_NONE 185 # define INADDR_NONE 0xffffffff 186 #endif /* ! INADDR_NONE */ 187 188 189 /* 190 ** An 'argument class' describes the storage allocation status 191 ** of an object pointed to by an argument to a function. 192 */ 193 194 typedef enum 195 { 196 A_HEAP, /* the storage was allocated by malloc, and the 197 * ownership of the storage is ceded by the caller 198 * to the called function. */ 199 A_TEMP, /* The storage is temporary, and is only guaranteed 200 * to be valid for the duration of the function call. */ 201 A_PERM /* The storage is 'permanent': this might mean static 202 * storage, or rpool storage. */ 203 } ARGCLASS_T; 204 205 /* forward references for prototypes */ 206 typedef struct envelope ENVELOPE; 207 typedef struct mailer MAILER; 208 typedef struct queuegrp QUEUEGRP; 209 210 /* 211 ** Address structure. 212 ** Addresses are stored internally in this structure. 213 */ 214 215 struct address 216 { 217 char *q_paddr; /* the printname for the address */ 218 char *q_user; /* user name */ 219 char *q_ruser; /* real user name, or NULL if q_user */ 220 char *q_host; /* host name */ 221 struct mailer *q_mailer; /* mailer to use */ 222 unsigned long q_flags; /* status flags, see below */ 223 uid_t q_uid; /* user-id of receiver (if known) */ 224 gid_t q_gid; /* group-id of receiver (if known) */ 225 char *q_home; /* home dir (local mailer only) */ 226 char *q_fullname; /* full name if known */ 227 struct address *q_next; /* chain */ 228 struct address *q_alias; /* address this results from */ 229 char *q_owner; /* owner of q_alias */ 230 struct address *q_tchain; /* temporary use chain */ 231 #if PIPELINING 232 struct address *q_pchain; /* chain for pipelining */ 233 #endif /* PIPELINING */ 234 char *q_finalrcpt; /* Final-Recipient: DSN header */ 235 char *q_orcpt; /* ORCPT parameter from RCPT TO: line */ 236 char *q_status; /* status code for DSNs */ 237 char *q_rstatus; /* remote status message for DSNs */ 238 time_t q_statdate; /* date of status messages */ 239 char *q_statmta; /* MTA generating q_rstatus */ 240 short q_state; /* address state, see below */ 241 char *q_signature; /* MX-based sorting value */ 242 int q_qgrp; /* index into queue groups */ 243 int q_qdir; /* queue directory inside group */ 244 char *q_message; /* error message */ 245 }; 246 247 typedef struct address ADDRESS; 248 249 /* bit values for q_flags */ 250 #define QGOODUID 0x00000001 /* the q_uid q_gid fields are good */ 251 #define QPRIMARY 0x00000002 /* set from RCPT or argv */ 252 #define QNOTREMOTE 0x00000004 /* address not for remote forwarding */ 253 #define QSELFREF 0x00000008 /* this address references itself */ 254 #define QBOGUSSHELL 0x00000010 /* user has no valid shell listed */ 255 #define QUNSAFEADDR 0x00000020 /* address acquired via unsafe path */ 256 #define QPINGONSUCCESS 0x00000040 /* give return on successful delivery */ 257 #define QPINGONFAILURE 0x00000080 /* give return on failure */ 258 #define QPINGONDELAY 0x00000100 /* give return on message delay */ 259 #define QHASNOTIFY 0x00000200 /* propagate notify parameter */ 260 #define QRELAYED 0x00000400 /* DSN: relayed to non-DSN aware sys */ 261 #define QEXPANDED 0x00000800 /* DSN: undergone list expansion */ 262 #define QDELIVERED 0x00001000 /* DSN: successful final delivery */ 263 #define QDELAYED 0x00002000 /* DSN: message delayed */ 264 #define QALIAS 0x00004000 /* expanded alias */ 265 #define QBYTRACE 0x00008000 /* DeliverBy: trace */ 266 #define QBYNDELAY 0x00010000 /* DeliverBy: notify, delay */ 267 #define QBYNRELAY 0x00020000 /* DeliverBy: notify, relayed */ 268 #define QTHISPASS 0x40000000 /* temp: address set this pass */ 269 #define QRCPTOK 0x80000000 /* recipient() processed address */ 270 271 #define Q_PINGFLAGS (QPINGONSUCCESS|QPINGONFAILURE|QPINGONDELAY) 272 273 /* values for q_state */ 274 #define QS_OK 0 /* address ok (for now)/not yet tried */ 275 #define QS_SENT 1 /* good address, delivery complete */ 276 #define QS_BADADDR 2 /* illegal address */ 277 #define QS_QUEUEUP 3 /* save address in queue */ 278 #define QS_RETRY 4 /* retry delivery for next MX */ 279 #define QS_VERIFIED 5 /* verified, but not expanded */ 280 281 /* 282 ** Notice: all of the following values are variations of QS_DONTSEND. 283 ** If new states are added, they must be inserted in the proper place! 284 ** See the macro definition of QS_IS_DEAD() down below. 285 */ 286 287 #define QS_DONTSEND 6 /* don't send to this address */ 288 #define QS_EXPANDED 7 /* expanded */ 289 #define QS_SENDER 8 /* message sender (MeToo) */ 290 #define QS_CLONED 9 /* addr cloned to split envelope */ 291 #define QS_DISCARDED 10 /* rcpt discarded (EF_DISCARD) */ 292 #define QS_REPLACED 11 /* maplocaluser()/UserDB replaced */ 293 #define QS_REMOVED 12 /* removed (removefromlist()) */ 294 #define QS_DUPLICATE 13 /* duplicate suppressed */ 295 #define QS_INCLUDED 14 /* :include: delivery */ 296 #define QS_FATALERR 15 /* fatal error, don't deliver */ 297 298 /* address state testing primitives */ 299 #define QS_IS_OK(s) ((s) == QS_OK) 300 #define QS_IS_SENT(s) ((s) == QS_SENT) 301 #define QS_IS_BADADDR(s) ((s) == QS_BADADDR) 302 #define QS_IS_QUEUEUP(s) ((s) == QS_QUEUEUP) 303 #define QS_IS_RETRY(s) ((s) == QS_RETRY) 304 #define QS_IS_VERIFIED(s) ((s) == QS_VERIFIED) 305 #define QS_IS_EXPANDED(s) ((s) == QS_EXPANDED) 306 #define QS_IS_REMOVED(s) ((s) == QS_REMOVED) 307 #define QS_IS_UNDELIVERED(s) ((s) == QS_OK || \ 308 (s) == QS_QUEUEUP || \ 309 (s) == QS_RETRY || \ 310 (s) == QS_VERIFIED) 311 #define QS_IS_UNMARKED(s) ((s) == QS_OK || \ 312 (s) == QS_RETRY) 313 #define QS_IS_SENDABLE(s) ((s) == QS_OK || \ 314 (s) == QS_QUEUEUP || \ 315 (s) == QS_RETRY) 316 #define QS_IS_ATTEMPTED(s) ((s) == QS_QUEUEUP || \ 317 (s) == QS_RETRY || \ 318 (s) == QS_SENT) 319 #define QS_IS_DEAD(s) ((s) >= QS_DONTSEND) 320 321 322 #define NULLADDR ((ADDRESS *) NULL) 323 324 extern ADDRESS NullAddress; /* a null (template) address [main.c] */ 325 326 /* functions */ 327 extern void cataddr __P((char **, char **, char *, int, int)); 328 extern char *crackaddr __P((char *)); 329 extern bool emptyaddr __P((ADDRESS *)); 330 extern ADDRESS *getctladdr __P((ADDRESS *)); 331 extern int include __P((char *, bool, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 332 extern bool invalidaddr __P((char *, char *, bool)); 333 extern ADDRESS *parseaddr __P((char *, ADDRESS *, int, int, char **, 334 ENVELOPE *, bool)); 335 extern char **prescan __P((char *, int, char[], int, char **, unsigned char *)); 336 extern void printaddr __P((ADDRESS *, bool)); 337 extern ADDRESS *recipient __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 338 extern char *remotename __P((char *, MAILER *, int, int *, ENVELOPE *)); 339 extern int rewrite __P((char **, int, int, ENVELOPE *, int)); 340 extern bool sameaddr __P((ADDRESS *, ADDRESS *)); 341 extern int sendtolist __P((char *, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 342 #if MILTER 343 extern int removefromlist __P((char *, ADDRESS **, ENVELOPE *)); 344 #endif /* MILTER */ 345 extern void setsender __P((char *, ENVELOPE *, char **, int, bool)); 346 347 /* macro to simplify the common call to rewrite() */ 348 #define REWRITE(pvp, rs, env) rewrite(pvp, rs, 0, env, MAXATOM) 349 350 /* 351 ** Mailer definition structure. 352 ** Every mailer known to the system is declared in this 353 ** structure. It defines the pathname of the mailer, some 354 ** flags associated with it, and the argument vector to 355 ** pass to it. The flags are defined in conf.c 356 ** 357 ** The argument vector is expanded before actual use. All 358 ** words except the first are passed through the macro 359 ** processor. 360 */ 361 362 struct mailer 363 { 364 char *m_name; /* symbolic name of this mailer */ 365 char *m_mailer; /* pathname of the mailer to use */ 366 char *m_mtatype; /* type of this MTA */ 367 char *m_addrtype; /* type for addresses */ 368 char *m_diagtype; /* type for diagnostics */ 369 BITMAP256 m_flags; /* status flags, see below */ 370 short m_mno; /* mailer number internally */ 371 short m_nice; /* niceness to run at (mostly for prog) */ 372 char **m_argv; /* template argument vector */ 373 short m_sh_rwset; /* rewrite set: sender header addresses */ 374 short m_se_rwset; /* rewrite set: sender envelope addresses */ 375 short m_rh_rwset; /* rewrite set: recipient header addresses */ 376 short m_re_rwset; /* rewrite set: recipient envelope addresses */ 377 char *m_eol; /* end of line string */ 378 long m_maxsize; /* size limit on message to this mailer */ 379 int m_linelimit; /* max # characters per line */ 380 int m_maxdeliveries; /* max deliveries per mailer connection */ 381 char *m_execdir; /* directory to chdir to before execv */ 382 char *m_rootdir; /* directory to chroot to before execv */ 383 uid_t m_uid; /* UID to run as */ 384 gid_t m_gid; /* GID to run as */ 385 char *m_defcharset; /* default character set */ 386 time_t m_wait; /* timeout to wait for end */ 387 int m_maxrcpt; /* max recipients per envelope client-side */ 388 short m_qgrp; /* queue group for this mailer */ 389 }; 390 391 /* bits for m_flags */ 392 #define M_ESMTP 'a' /* run Extended SMTP */ 393 #define M_ALIASABLE 'A' /* user can be LHS of an alias */ 394 #define M_BLANKEND 'b' /* ensure blank line at end of message */ 395 #define M_NOCOMMENT 'c' /* don't include comment part of address */ 396 #define M_CANONICAL 'C' /* make addresses canonical "u@dom" */ 397 #define M_NOBRACKET 'd' /* never angle bracket envelope route-addrs */ 398 /* 'D' CF: include Date: */ 399 #define M_EXPENSIVE 'e' /* it costs to use this mailer.... */ 400 #define M_ESCFROM 'E' /* escape From lines to >From */ 401 #define M_FOPT 'f' /* mailer takes picky -f flag */ 402 /* 'F' CF: include From: or Resent-From: */ 403 #define M_NO_NULL_FROM 'g' /* sender of errors should be $g */ 404 #define M_HST_UPPER 'h' /* preserve host case distinction */ 405 #define M_PREHEAD 'H' /* MAIL11V3: preview headers */ 406 #define M_UDBENVELOPE 'i' /* do udbsender rewriting on envelope */ 407 #define M_INTERNAL 'I' /* SMTP to another sendmail site */ 408 #define M_UDBRECIPIENT 'j' /* do udbsender rewriting on recipient lines */ 409 #define M_NOLOOPCHECK 'k' /* don't check for loops in HELO command */ 410 #define M_CHUNKING 'K' /* CHUNKING: reserved for future use */ 411 #define M_LOCALMAILER 'l' /* delivery is to this host */ 412 #define M_LIMITS 'L' /* must enforce SMTP line limits */ 413 #define M_MUSER 'm' /* can handle multiple users at once */ 414 /* 'M' CF: include Message-Id: */ 415 #define M_NHDR 'n' /* don't insert From line */ 416 #define M_MANYSTATUS 'N' /* MAIL11V3: DATA returns multi-status */ 417 #define M_RUNASRCPT 'o' /* always run mailer as recipient */ 418 #define M_FROMPATH 'p' /* use reverse-path in MAIL FROM: */ 419 /* 'P' CF: include Return-Path: */ 420 #define M_VRFY250 'q' /* VRFY command returns 250 instead of 252 */ 421 #define M_ROPT 'r' /* mailer takes picky -r flag */ 422 #define M_SECURE_PORT 'R' /* try to send on a reserved TCP port */ 423 #define M_STRIPQ 's' /* strip quote chars from user/host */ 424 #define M_SPECIFIC_UID 'S' /* run as specific uid/gid */ 425 #define M_USR_UPPER 'u' /* preserve user case distinction */ 426 #define M_UGLYUUCP 'U' /* this wants an ugly UUCP from line */ 427 #define M_CONTENT_LEN 'v' /* add Content-Length: header (SVr4) */ 428 /* 'V' UIUC: !-relativize all addresses */ 429 #define M_HASPWENT 'w' /* check for /etc/passwd entry */ 430 /* 'x' CF: include Full-Name: */ 431 #define M_XDOT 'X' /* use hidden-dot algorithm */ 432 #define M_LMTP 'z' /* run Local Mail Transport Protocol */ 433 #define M_DIALDELAY 'Z' /* apply dial delay sleeptime */ 434 #define M_NOMX '0' /* turn off MX lookups */ 435 #define M_NONULLS '1' /* don't send null bytes */ 436 #define M_FSMTP '2' /* force SMTP (no ESMTP even if offered) */ 437 #define M_EBCDIC '3' /* extend Q-P encoding for EBCDIC */ 438 #define M_TRYRULESET5 '5' /* use ruleset 5 after local aliasing */ 439 #define M_7BITHDRS '6' /* strip headers to 7 bits even in 8 bit path */ 440 #define M_7BITS '7' /* use 7-bit path */ 441 #define M_8BITS '8' /* force "just send 8" behaviour */ 442 #define M_MAKE8BIT '9' /* convert 7 -> 8 bit if appropriate */ 443 #define M_CHECKINCLUDE ':' /* check for :include: files */ 444 #define M_CHECKPROG '|' /* check for |program addresses */ 445 #define M_CHECKFILE '/' /* check for /file addresses */ 446 #define M_CHECKUDB '@' /* user can be user database key */ 447 #define M_CHECKHDIR '~' /* SGI: check for valid home directory */ 448 #define M_HOLD '%' /* Hold delivery until ETRN/-qI/-qR/-qS */ 449 #define M_PLUS '+' /* Reserved: Used in mc for adding new flags */ 450 #define M_MINUS '-' /* Reserved: Used in mc for removing flags */ 451 452 /* functions */ 453 extern void initerrmailers __P((void)); 454 extern void makemailer __P((char *)); 455 extern void makequeue __P((char *, bool)); 456 extern void runqueueevent __P((void)); 457 #if _FFR_QUEUE_RUN_PARANOIA 458 extern bool checkqueuerunner __P((void)); 459 #endif /* _FFR_QUEUE_RUN_PARANOIA */ 460 461 EXTERN MAILER *FileMailer; /* ptr to *file* mailer */ 462 EXTERN MAILER *InclMailer; /* ptr to *include* mailer */ 463 EXTERN MAILER *LocalMailer; /* ptr to local mailer */ 464 EXTERN MAILER *ProgMailer; /* ptr to program mailer */ 465 EXTERN MAILER *Mailer[MAXMAILERS + 1]; 466 467 /* 468 ** Queue group definition structure. 469 ** Every queue group known to the system is declared in this structure. 470 ** It defines the basic pathname of the queue group, some flags 471 ** associated with it, and the argument vector to pass to it. 472 */ 473 474 struct qpaths_s 475 { 476 char *qp_name; /* name of queue dir, relative path */ 477 short qp_subdirs; /* use subdirs? */ 478 short qp_fsysidx; /* file system index of this directory */ 479 # if SM_CONF_SHM 480 int qp_idx; /* index into array for queue information */ 481 # endif /* SM_CONF_SHM */ 482 }; 483 484 typedef struct qpaths_s QPATHS; 485 486 struct queuegrp 487 { 488 char *qg_name; /* symbolic name of this queue group */ 489 490 /* 491 ** For now this is the same across all queue groups. 492 ** Otherwise we have to play around with chdir(). 493 */ 494 495 char *qg_qdir; /* common component of queue directory */ 496 short qg_index; /* queue number internally, index in Queue[] */ 497 int qg_maxqrun; /* max # of jobs in 1 queuerun */ 498 int qg_numqueues; /* number of queues in this queue */ 499 500 /* 501 ** qg_queueintvl == 0 denotes that no individual value is used. 502 ** Whatever accesses this must deal with "<= 0" as 503 ** "not set, use appropriate default". 504 */ 505 506 time_t qg_queueintvl; /* interval for queue runs */ 507 QPATHS *qg_qpaths; /* list of queue directories */ 508 BITMAP256 qg_flags; /* status flags, see below */ 509 short qg_nice; /* niceness for queue run */ 510 int qg_wgrp; /* Assigned to this work group */ 511 int qg_maxlist; /* max items in work queue for this group */ 512 int qg_curnum; /* current number of queue for queue runs */ 513 int qg_maxrcpt; /* max recipients per envelope, 0==no limit */ 514 515 time_t qg_nextrun; /* time for next queue runs */ 516 #if _FFR_QUEUE_GROUP_SORTORDER 517 short qg_sortorder; /* how do we sort this queuerun */ 518 #endif /* _FFR_QUEUE_GROUP_SORTORDER */ 519 #if 0 520 long qg_wkrcptfact; /* multiplier for # recipients -> priority */ 521 long qg_qfactor; /* slope of queue function */ 522 bool qg_doqueuerun; /* XXX flag is it time to do a queuerun */ 523 #endif /* 0 */ 524 }; 525 526 /* bits for qg_flags (XXX: unused as of now) */ 527 #define QD_DEFINED ((char) 1) /* queue group has been defined */ 528 #define QD_FORK 'f' /* fork queue runs */ 529 530 extern void filesys_update __P((void)); 531 #if _FFR_ANY_FREE_FS 532 extern bool filesys_free __P((long)); 533 #endif /* _FFR_ANY_FREE_FS */ 534 535 #if SASL 536 /* 537 ** SASL 538 */ 539 540 /* lines in authinfo file or index into SASL_AI_T */ 541 # define SASL_WRONG (-1) 542 # define SASL_USER 0 /* authorization id (user) */ 543 # define SASL_AUTHID 1 /* authentication id */ 544 # define SASL_PASSWORD 2 /* password fuer authid */ 545 # define SASL_DEFREALM 3 /* realm to use */ 546 # define SASL_MECHLIST 4 /* list of mechanisms to try */ 547 # define SASL_ID_REALM 5 /* authid@defrealm */ 548 549 /* 550 ** Current mechanism; this is just used to convey information between 551 ** invocation of SASL callback functions. 552 ** It must be last in the list, because it's not allocated by us 553 ** and hence we don't free() it. 554 */ 555 # define SASL_MECH 6 556 # define SASL_ENTRIES 7 /* number of entries in array */ 557 558 # define SASL_USER_BIT (1 << SASL_USER) 559 # define SASL_AUTHID_BIT (1 << SASL_AUTHID) 560 # define SASL_PASSWORD_BIT (1 << SASL_PASSWORD) 561 # define SASL_DEFREALM_BIT (1 << SASL_DEFREALM) 562 # define SASL_MECHLIST_BIT (1 << SASL_MECHLIST) 563 564 /* authenticated? */ 565 # define SASL_NOT_AUTH 0 /* not authenticated */ 566 # define SASL_PROC_AUTH 1 /* in process of authenticating */ 567 # define SASL_IS_AUTH 2 /* authenticated */ 568 569 /* SASL options */ 570 # define SASL_AUTH_AUTH 0x1000 /* use auth= only if authenticated */ 571 # if SASL >= 20101 572 # define SASL_SEC_MASK SASL_SEC_MAXIMUM /* mask for SASL_SEC_* values: sasl.h */ 573 # else /* SASL >= 20101 */ 574 # define SASL_SEC_MASK 0x0fff /* mask for SASL_SEC_* values: sasl.h */ 575 # if (SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 || \ 576 (SASL_SEC_NOACTIVE & SASL_SEC_MASK) == 0 || \ 577 (SASL_SEC_NODICTIONARY & SASL_SEC_MASK) == 0 || \ 578 (SASL_SEC_FORWARD_SECRECY & SASL_SEC_MASK) == 0 || \ 579 (SASL_SEC_NOANONYMOUS & SASL_SEC_MASK) == 0 || \ 580 (SASL_SEC_PASS_CREDENTIALS & SASL_SEC_MASK) == 0 581 ERROR: change SASL_SEC_MASK_ notify sendmail.org! 582 # endif /* SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 ... */ 583 # endif /* SASL >= 20101 */ 584 # define MAXOUTLEN 1024 /* length of output buffer */ 585 586 /* functions */ 587 extern char *intersect __P((char *, char *, SM_RPOOL_T *)); 588 extern char *iteminlist __P((char *, char *, char *)); 589 # if SASL >= 20000 590 extern int proxy_policy __P((sasl_conn_t *, void *, const char *, unsigned, const char *, unsigned, const char *, unsigned, struct propctx *)); 591 extern int safesaslfile __P((void *, const char *, sasl_verify_type_t)); 592 # else /* SASL >= 20000 */ 593 extern int proxy_policy __P((void *, const char *, const char *, const char **, const char **)); 594 # if SASL > 10515 595 extern int safesaslfile __P((void *, char *, int)); 596 # else /* SASL > 10515 */ 597 extern int safesaslfile __P((void *, char *)); 598 # endif /* SASL > 10515 */ 599 # endif /* SASL >= 20000 */ 600 extern void stop_sasl_client __P((void)); 601 602 /* structure to store authinfo */ 603 typedef char *SASL_AI_T[SASL_ENTRIES]; 604 605 EXTERN char *AuthMechanisms; /* AUTH mechanisms */ 606 EXTERN char *SASLInfo; /* file with AUTH info */ 607 EXTERN int SASLOpts; /* options for SASL */ 608 EXTERN int MaxSLBits; /* max. encryption bits for SASL */ 609 #endif /* SASL */ 610 611 /* 612 ** Structure to store macros. 613 */ 614 typedef struct 615 { 616 SM_RPOOL_T *mac_rpool; /* resource pool */ 617 BITMAP256 mac_allocated; /* storage has been alloc()? */ 618 char *mac_table[MAXMACROID + 1]; /* macros */ 619 } MACROS_T; 620 621 EXTERN MACROS_T GlobalMacros; 622 623 /* 624 ** Information about currently open connections to mailers, or to 625 ** hosts that we have looked up recently. 626 */ 627 628 #define MCI struct mailer_con_info 629 630 MCI 631 { 632 unsigned long mci_flags; /* flag bits, see below */ 633 short mci_errno; /* error number on last connection */ 634 short mci_herrno; /* h_errno from last DNS lookup */ 635 short mci_exitstat; /* exit status from last connection */ 636 short mci_state; /* SMTP state */ 637 int mci_deliveries; /* delivery attempts for connection */ 638 long mci_maxsize; /* max size this server will accept */ 639 SM_FILE_T *mci_in; /* input side of connection */ 640 SM_FILE_T *mci_out; /* output side of connection */ 641 pid_t mci_pid; /* process id of subordinate proc */ 642 char *mci_phase; /* SMTP phase string */ 643 struct mailer *mci_mailer; /* ptr to the mailer for this conn */ 644 char *mci_host; /* host name */ 645 char *mci_status; /* DSN status to be copied to addrs */ 646 char *mci_rstatus; /* SMTP status to be copied to addrs */ 647 time_t mci_lastuse; /* last usage time */ 648 SM_FILE_T *mci_statfile; /* long term status file */ 649 char *mci_heloname; /* name to use as HELO arg */ 650 long mci_min_by; /* minimum DELIVERBY */ 651 bool mci_retryrcpt; /* tempfail for at least one rcpt */ 652 char *mci_tolist; /* list of valid recipients */ 653 SM_RPOOL_T *mci_rpool; /* resource pool */ 654 #if PIPELINING 655 int mci_okrcpts; /* number of valid recipients */ 656 ADDRESS *mci_nextaddr; /* next address for pipelined status */ 657 #endif /* PIPELINING */ 658 #if SASL 659 SASL_AI_T mci_sai; /* authentication info */ 660 bool mci_sasl_auth; /* authenticated? */ 661 int mci_sasl_string_len; 662 char *mci_sasl_string; /* sasl reply string */ 663 char *mci_saslcap; /* SASL list of mechanisms */ 664 sasl_conn_t *mci_conn; /* SASL connection */ 665 #endif /* SASL */ 666 #if STARTTLS 667 SSL *mci_ssl; /* SSL connection */ 668 #endif /* STARTTLS */ 669 MACROS_T mci_macro; /* macro definitions */ 670 }; 671 672 673 /* flag bits */ 674 #define MCIF_VALID 0x00000001 /* this entry is valid */ 675 /* 0x00000002 unused, was MCIF_TEMP */ 676 #define MCIF_CACHED 0x00000004 /* currently in open cache */ 677 #define MCIF_ESMTP 0x00000008 /* this host speaks ESMTP */ 678 #define MCIF_EXPN 0x00000010 /* EXPN command supported */ 679 #define MCIF_SIZE 0x00000020 /* SIZE option supported */ 680 #define MCIF_8BITMIME 0x00000040 /* BODY=8BITMIME supported */ 681 #define MCIF_7BIT 0x00000080 /* strip this message to 7 bits */ 682 /* 0x00000100 unused, was MCIF_MULTSTAT: MAIL11V3: handles MULT status */ 683 #define MCIF_INHEADER 0x00000200 /* currently outputing header */ 684 #define MCIF_CVT8TO7 0x00000400 /* convert from 8 to 7 bits */ 685 #define MCIF_DSN 0x00000800 /* DSN extension supported */ 686 #define MCIF_8BITOK 0x00001000 /* OK to send 8 bit characters */ 687 #define MCIF_CVT7TO8 0x00002000 /* convert from 7 to 8 bits */ 688 #define MCIF_INMIME 0x00004000 /* currently reading MIME header */ 689 #define MCIF_AUTH 0x00008000 /* AUTH= supported */ 690 #define MCIF_AUTHACT 0x00010000 /* SASL (AUTH) active */ 691 #define MCIF_ENHSTAT 0x00020000 /* ENHANCEDSTATUSCODES supported */ 692 #define MCIF_PIPELINED 0x00040000 /* PIPELINING supported */ 693 #if STARTTLS 694 #define MCIF_TLS 0x00100000 /* STARTTLS supported */ 695 #define MCIF_TLSACT 0x00200000 /* STARTTLS active */ 696 #define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT | MCIF_TLS) 697 #else /* STARTTLS */ 698 #define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT) 699 #endif /* STARTTLS */ 700 #define MCIF_DLVR_BY 0x00400000 /* DELIVERBY */ 701 #if _FFR_IGNORE_EXT_ON_HELO 702 # define MCIF_HELO 0x00800000 /* we used HELO: ignore extensions */ 703 #endif /* _FFR_IGNORE_EXT_ON_HELO */ 704 #define MCIF_ONLY_EHLO 0x10000000 /* use only EHLO in smtpinit */ 705 706 /* states */ 707 #define MCIS_CLOSED 0 /* no traffic on this connection */ 708 #define MCIS_OPENING 1 /* sending initial protocol */ 709 #define MCIS_OPEN 2 /* open, initial protocol sent */ 710 #define MCIS_MAIL 3 /* MAIL command sent */ 711 #define MCIS_RCPT 4 /* RCPT commands being sent */ 712 #define MCIS_DATA 5 /* DATA command sent */ 713 #define MCIS_QUITING 6 /* running quit protocol */ 714 #define MCIS_SSD 7 /* service shutting down */ 715 #define MCIS_ERROR 8 /* I/O error on connection */ 716 717 /* functions */ 718 extern void mci_cache __P((MCI *)); 719 extern void mci_dump __P((MCI *, bool)); 720 extern void mci_dump_all __P((bool)); 721 extern void mci_flush __P((bool, MCI *)); 722 extern MCI *mci_get __P((char *, MAILER *)); 723 extern int mci_lock_host __P((MCI *)); 724 extern bool mci_match __P((char *, MAILER *)); 725 extern int mci_print_persistent __P((char *, char *)); 726 extern int mci_purge_persistent __P((char *, char *)); 727 extern MCI **mci_scan __P((MCI *)); 728 extern void mci_setstat __P((MCI *, int, char *, char *)); 729 extern void mci_store_persistent __P((MCI *)); 730 extern int mci_traverse_persistent __P((int (*)(), char *)); 731 extern void mci_unlock_host __P((MCI *)); 732 733 EXTERN int MaxMciCache; /* maximum entries in MCI cache */ 734 EXTERN time_t MciCacheTimeout; /* maximum idle time on connections */ 735 EXTERN time_t MciInfoTimeout; /* how long 'til we retry down hosts */ 736 737 /* 738 ** Header structure. 739 ** This structure is used internally to store header items. 740 */ 741 742 struct header 743 { 744 char *h_field; /* the name of the field */ 745 char *h_value; /* the value of that field */ 746 struct header *h_link; /* the next header */ 747 unsigned char h_macro; /* include header if macro defined */ 748 unsigned long h_flags; /* status bits, see below */ 749 BITMAP256 h_mflags; /* m_flags bits needed */ 750 }; 751 752 typedef struct header HDR; 753 754 /* 755 ** Header information structure. 756 ** Defined in conf.c, this struct declares the header fields 757 ** that have some magic meaning. 758 */ 759 760 struct hdrinfo 761 { 762 char *hi_field; /* the name of the field */ 763 unsigned long hi_flags; /* status bits, see below */ 764 char *hi_ruleset; /* validity check ruleset */ 765 }; 766 767 extern struct hdrinfo HdrInfo[]; 768 769 /* bits for h_flags and hi_flags */ 770 #define H_EOH 0x00000001 /* field terminates header */ 771 #define H_RCPT 0x00000002 /* contains recipient addresses */ 772 #define H_DEFAULT 0x00000004 /* if another value is found, drop this */ 773 #define H_RESENT 0x00000008 /* this address is a "Resent-..." address */ 774 #define H_CHECK 0x00000010 /* check h_mflags against m_flags */ 775 #define H_ACHECK 0x00000020 /* ditto, but always (not just default) */ 776 #define H_FORCE 0x00000040 /* force this field, even if default */ 777 #define H_TRACE 0x00000080 /* this field contains trace information */ 778 #define H_FROM 0x00000100 /* this is a from-type field */ 779 #define H_VALID 0x00000200 /* this field has a validated value */ 780 #define H_RECEIPTTO 0x00000400 /* field has return receipt info */ 781 #define H_ERRORSTO 0x00000800 /* field has error address info */ 782 #define H_CTE 0x00001000 /* field is a content-transfer-encoding */ 783 #define H_CTYPE 0x00002000 /* this is a content-type field */ 784 #define H_BCC 0x00004000 /* Bcc: header: strip value or delete */ 785 #define H_ENCODABLE 0x00008000 /* field can be RFC 1522 encoded */ 786 #define H_STRIPCOMM 0x00010000 /* header check: strip comments */ 787 #define H_BINDLATE 0x00020000 /* only expand macros at deliver */ 788 #define H_USER 0x00040000 /* header came from the user/SMTP */ 789 790 /* bits for chompheader() */ 791 #define CHHDR_DEF 0x0001 /* default header */ 792 #define CHHDR_CHECK 0x0002 /* call ruleset for header */ 793 #define CHHDR_USER 0x0004 /* header from user */ 794 #define CHHDR_QUEUE 0x0008 /* header from queue file */ 795 796 /* functions */ 797 extern void addheader __P((char *, char *, int, ENVELOPE *)); 798 extern unsigned long chompheader __P((char *, int, HDR **, ENVELOPE *)); 799 extern void commaize __P((HDR *, char *, bool, MCI *, ENVELOPE *)); 800 extern HDR *copyheader __P((HDR *, SM_RPOOL_T *)); 801 extern void eatheader __P((ENVELOPE *, bool, bool)); 802 extern char *hvalue __P((char *, HDR *)); 803 extern bool isheader __P((char *)); 804 extern void putfromline __P((MCI *, ENVELOPE *)); 805 extern void setupheaders __P((void)); 806 807 /* 808 ** Performance monitoring 809 */ 810 811 #define TIMERS struct sm_timers 812 813 TIMERS 814 { 815 TIMER ti_overall; /* the whole process */ 816 }; 817 818 819 #define PUSHTIMER(l, t) { if (tTd(98, l)) pushtimer(&t); } 820 #define POPTIMER(l, t) { if (tTd(98, l)) poptimer(&t); } 821 822 /* 823 ** Envelope structure. 824 ** This structure defines the message itself. There is usually 825 ** only one of these -- for the message that we originally read 826 ** and which is our primary interest -- but other envelopes can 827 ** be generated during processing. For example, error messages 828 ** will have their own envelope. 829 */ 830 831 struct envelope 832 { 833 HDR *e_header; /* head of header list */ 834 long e_msgpriority; /* adjusted priority of this message */ 835 time_t e_ctime; /* time message appeared in the queue */ 836 char *e_to; /* (list of) target person(s) */ 837 ADDRESS e_from; /* the person it is from */ 838 char *e_sender; /* e_from.q_paddr w comments stripped */ 839 char **e_fromdomain; /* the domain part of the sender */ 840 ADDRESS *e_sendqueue; /* list of message recipients */ 841 ADDRESS *e_errorqueue; /* the queue for error responses */ 842 843 /* 844 ** Overflow detection is based on < 0, so don't change this 845 ** to unsigned. We don't use unsigned and == ULONG_MAX because 846 ** some libc's don't have strtoul(), see mail_esmtp_args(). 847 */ 848 849 long e_msgsize; /* size of the message in bytes */ 850 char *e_msgid; /* message id (for logging) */ 851 unsigned long e_flags; /* flags, see below */ 852 int e_nrcpts; /* number of recipients */ 853 short e_class; /* msg class (priority, junk, etc.) */ 854 short e_hopcount; /* number of times processed */ 855 short e_nsent; /* number of sends since checkpoint */ 856 short e_sendmode; /* message send mode */ 857 short e_errormode; /* error return mode */ 858 short e_timeoutclass; /* message timeout class */ 859 void (*e_puthdr)__P((MCI *, HDR *, ENVELOPE *, int)); 860 /* function to put header of message */ 861 void (*e_putbody)__P((MCI *, ENVELOPE *, char *)); 862 /* function to put body of message */ 863 ENVELOPE *e_parent; /* the message this one encloses */ 864 ENVELOPE *e_sibling; /* the next envelope of interest */ 865 char *e_bodytype; /* type of message body */ 866 SM_FILE_T *e_dfp; /* data file */ 867 char *e_id; /* code for this entry in queue */ 868 int e_qgrp; /* queue group (index into queues) */ 869 int e_qdir; /* index into queue directories */ 870 int e_dfqgrp; /* data file queue group index */ 871 int e_dfqdir; /* data file queue directory index */ 872 int e_xfqgrp; /* queue group (index into queues) */ 873 int e_xfqdir; /* index into queue directories (xf) */ 874 SM_FILE_T *e_xfp; /* transcript file */ 875 SM_FILE_T *e_lockfp; /* the lock file for this message */ 876 char *e_message; /* error message; readonly; NULL, or 877 * static storage, or allocated from 878 * e_rpool */ 879 char *e_statmsg; /* stat msg (changes per delivery). 880 * readonly. NULL or allocated from 881 * e_rpool. */ 882 #if _FFR_QUARANTINE 883 char *e_quarmsg; /* why envelope is quarantined */ 884 char e_qfletter; /* queue file letter on disk */ 885 #endif /* _FFR_QUARANTINE */ 886 char *e_msgboundary; /* MIME-style message part boundary */ 887 char *e_origrcpt; /* original recipient (one only) */ 888 char *e_envid; /* envelope id from MAIL FROM: line */ 889 char *e_status; /* DSN status for this message */ 890 time_t e_dtime; /* time of last delivery attempt */ 891 int e_ntries; /* number of delivery attempts */ 892 dev_t e_dfdev; /* data file device (crash recovery) */ 893 ino_t e_dfino; /* data file inode (crash recovery) */ 894 MACROS_T e_macro; /* macro definitions */ 895 MCI *e_mci; /* connection info */ 896 char *e_auth_param; /* readonly; NULL or static storage or 897 * allocated from e_rpool */ 898 TIMERS e_timers; /* per job timers */ 899 #if _FFR_QUEUEDELAY 900 int e_queuealg; /* algorithm for queue delay */ 901 time_t e_queuedelay; /* current delay */ 902 #endif /* _FFR_QUEUEDELAY */ 903 long e_deliver_by; /* deliver by */ 904 int e_dlvr_flag; /* deliver by flag */ 905 SM_RPOOL_T *e_rpool; /* resource pool for this envelope */ 906 }; 907 908 /* values for e_flags */ 909 #define EF_OLDSTYLE 0x00000001L /* use spaces (not commas) in hdrs */ 910 #define EF_INQUEUE 0x00000002L /* this message is fully queued */ 911 #define EF_NO_BODY_RETN 0x00000004L /* omit message body on error */ 912 #define EF_CLRQUEUE 0x00000008L /* disk copy is no longer needed */ 913 #define EF_SENDRECEIPT 0x00000010L /* send a return receipt */ 914 #define EF_FATALERRS 0x00000020L /* fatal errors occurred */ 915 #define EF_DELETE_BCC 0x00000040L /* delete Bcc: headers entirely */ 916 #define EF_RESPONSE 0x00000080L /* this is an error or return receipt */ 917 #define EF_RESENT 0x00000100L /* this message is being forwarded */ 918 #define EF_VRFYONLY 0x00000200L /* verify only (don't expand aliases) */ 919 #define EF_WARNING 0x00000400L /* warning message has been sent */ 920 #define EF_QUEUERUN 0x00000800L /* this envelope is from queue */ 921 #define EF_GLOBALERRS 0x00001000L /* treat errors as global */ 922 #define EF_PM_NOTIFY 0x00002000L /* send return mail to postmaster */ 923 #define EF_METOO 0x00004000L /* send to me too */ 924 #define EF_LOGSENDER 0x00008000L /* need to log the sender */ 925 #define EF_NORECEIPT 0x00010000L /* suppress all return-receipts */ 926 #define EF_HAS8BIT 0x00020000L /* at least one 8-bit char in body */ 927 #define EF_NL_NOT_EOL 0x00040000L /* don't accept raw NL as EOLine */ 928 #define EF_CRLF_NOT_EOL 0x00080000L /* don't accept CR-LF as EOLine */ 929 #define EF_RET_PARAM 0x00100000L /* RCPT command had RET argument */ 930 #define EF_HAS_DF 0x00200000L /* set when data file is instantiated */ 931 #define EF_IS_MIME 0x00400000L /* really is a MIME message */ 932 #define EF_DONT_MIME 0x00800000L /* never MIME this message */ 933 #define EF_DISCARD 0x01000000L /* discard the message */ 934 #define EF_TOOBIG 0x02000000L /* message is too big */ 935 #define EF_SPLIT 0x04000000L /* envelope has been split */ 936 #define EF_UNSAFE 0x08000000L /* unsafe: read from untrusted source */ 937 938 #define DLVR_NOTIFY 0x01 939 #define DLVR_RETURN 0x02 940 #define DLVR_TRACE 0x10 941 #define IS_DLVR_NOTIFY(e) (((e)->e_dlvr_flag & DLVR_NOTIFY) != 0) 942 #define IS_DLVR_RETURN(e) (((e)->e_dlvr_flag & DLVR_RETURN) != 0) 943 #define IS_DLVR_TRACE(e) (((e)->e_dlvr_flag & DLVR_TRACE) != 0) 944 #define IS_DLVR_BY(e) ((e)->e_dlvr_flag != 0) 945 946 #define BODYTYPE_NONE (0) 947 #define BODYTYPE_7BIT (1) 948 #define BODYTYPE_8BITMIME (2) 949 #define BODYTYPE_ILLEGAL (-1) 950 #define BODYTYPE_VALID(b) ((b) == BODYTYPE_7BIT || (b) == BODYTYPE_8BITMIME) 951 952 extern ENVELOPE BlankEnvelope; 953 954 /* functions */ 955 extern void clearenvelope __P((ENVELOPE *, bool, SM_RPOOL_T *)); 956 extern void dropenvelope __P((ENVELOPE *, bool, bool)); 957 extern ENVELOPE *newenvelope __P((ENVELOPE *, ENVELOPE *, SM_RPOOL_T *)); 958 extern void printenvflags __P((ENVELOPE *)); 959 extern void putbody __P((MCI *, ENVELOPE *, char *)); 960 extern void putheader __P((MCI *, HDR *, ENVELOPE *, int)); 961 962 /* 963 ** Message priority classes. 964 ** 965 ** The message class is read directly from the Priority: header 966 ** field in the message. 967 ** 968 ** CurEnv->e_msgpriority is the number of bytes in the message plus 969 ** the creation time (so that jobs ``tend'' to be ordered correctly), 970 ** adjusted by the message class, the number of recipients, and the 971 ** amount of time the message has been sitting around. This number 972 ** is used to order the queue. Higher values mean LOWER priority. 973 ** 974 ** Each priority class point is worth WkClassFact priority points; 975 ** each recipient is worth WkRecipFact priority points. Each time 976 ** we reprocess a message the priority is adjusted by WkTimeFact. 977 ** WkTimeFact should normally decrease the priority so that jobs 978 ** that have historically failed will be run later; thanks go to 979 ** Jay Lepreau at Utah for pointing out the error in my thinking. 980 ** 981 ** The "class" is this number, unadjusted by the age or size of 982 ** this message. Classes with negative representations will have 983 ** error messages thrown away if they are not local. 984 */ 985 986 struct priority 987 { 988 char *pri_name; /* external name of priority */ 989 int pri_val; /* internal value for same */ 990 }; 991 992 EXTERN int NumPriorities; /* pointer into Priorities */ 993 EXTERN struct priority Priorities[MAXPRIORITIES]; 994 995 /* 996 ** Rewrite rules. 997 */ 998 999 struct rewrite 1000 { 1001 char **r_lhs; /* pattern match */ 1002 char **r_rhs; /* substitution value */ 1003 struct rewrite *r_next;/* next in chain */ 1004 int r_line; /* rule line in sendmail.cf */ 1005 }; 1006 1007 /* 1008 ** Special characters in rewriting rules. 1009 ** These are used internally only. 1010 ** The COND* rules are actually used in macros rather than in 1011 ** rewriting rules, but are given here because they 1012 ** cannot conflict. 1013 */ 1014 1015 /* left hand side items */ 1016 #define MATCHZANY ((unsigned char)0220) /* match zero or more tokens */ 1017 #define MATCHANY ((unsigned char)0221) /* match one or more tokens */ 1018 #define MATCHONE ((unsigned char)0222) /* match exactly one token */ 1019 #define MATCHCLASS ((unsigned char)0223) /* match one token in a class */ 1020 #define MATCHNCLASS ((unsigned char)0224) /* match anything not in class */ 1021 #define MATCHREPL ((unsigned char)0225) /* replacement on RHS for above */ 1022 1023 /* right hand side items */ 1024 #define CANONNET ((unsigned char)0226) /* canonical net, next token */ 1025 #define CANONHOST ((unsigned char)0227) /* canonical host, next token */ 1026 #define CANONUSER ((unsigned char)0230) /* canonical user, next N tokens */ 1027 #define CALLSUBR ((unsigned char)0231) /* call another rewriting set */ 1028 1029 /* conditionals in macros */ 1030 #define CONDIF ((unsigned char)0232) /* conditional if-then */ 1031 #define CONDELSE ((unsigned char)0233) /* conditional else */ 1032 #define CONDFI ((unsigned char)0234) /* conditional fi */ 1033 1034 /* bracket characters for host name lookup */ 1035 #define HOSTBEGIN ((unsigned char)0235) /* hostname lookup begin */ 1036 #define HOSTEND ((unsigned char)0236) /* hostname lookup end */ 1037 1038 /* bracket characters for generalized lookup */ 1039 #define LOOKUPBEGIN ((unsigned char)0205) /* generalized lookup begin */ 1040 #define LOOKUPEND ((unsigned char)0206) /* generalized lookup end */ 1041 1042 /* macro substitution character */ 1043 #define MACROEXPAND ((unsigned char)0201) /* macro expansion */ 1044 #define MACRODEXPAND ((unsigned char)0202) /* deferred macro expansion */ 1045 1046 /* to make the code clearer */ 1047 #define MATCHZERO CANONHOST 1048 1049 #define MAXMATCH 9 /* max params per rewrite */ 1050 1051 /* external <==> internal mapping table */ 1052 struct metamac 1053 { 1054 char metaname; /* external code (after $) */ 1055 unsigned char metaval; /* internal code (as above) */ 1056 }; 1057 1058 /* values for macros with external names only */ 1059 #define MID_OPMODE 0202 /* operation mode */ 1060 1061 /* functions */ 1062 #if SM_HEAP_CHECK 1063 extern void 1064 macdefine_tagged __P(( 1065 MACROS_T *_mac, 1066 ARGCLASS_T _vclass, 1067 int _id, 1068 char *_value, 1069 char *_file, 1070 int _line, 1071 int _group)); 1072 # define macdefine(mac,c,id,v) \ 1073 macdefine_tagged(mac,c,id,v,__FILE__,__LINE__,sm_heap_group()) 1074 #else /* SM_HEAP_CHECK */ 1075 extern void 1076 macdefine __P(( 1077 MACROS_T *_mac, 1078 ARGCLASS_T _vclass, 1079 int _id, 1080 char *_value)); 1081 # define macdefine_tagged(mac,c,id,v,file,line,grp) macdefine(mac,c,id,v) 1082 #endif /* SM_HEAP_CHECK */ 1083 extern void macset __P((MACROS_T *, int, char *)); 1084 #define macget(mac, i) (mac)->mac_table[i] 1085 extern void expand __P((char *, char *, size_t, ENVELOPE *)); 1086 extern int macid_parse __P((char *, char **)); 1087 #define macid(name) macid_parse(name, NULL) 1088 extern char *macname __P((int)); 1089 extern char *macvalue __P((int, ENVELOPE *)); 1090 extern int rscheck __P((char *, char *, char *, ENVELOPE *, int, int, char *, char *)); 1091 extern int rscap __P((char *, char *, char *, ENVELOPE *, char ***, char *, int)); 1092 extern void setclass __P((int, char *)); 1093 extern int strtorwset __P((char *, char **, int)); 1094 extern void translate_dollars __P((char *)); 1095 extern bool wordinclass __P((char *, int)); 1096 1097 /* 1098 ** Name canonification short circuit. 1099 ** 1100 ** If the name server for a host is down, the process of trying to 1101 ** canonify the name can hang. This is similar to (but alas, not 1102 ** identical to) looking up the name for delivery. This stab type 1103 ** caches the result of the name server lookup so we don't hang 1104 ** multiple times. 1105 */ 1106 1107 #define NAMECANON struct _namecanon 1108 1109 NAMECANON 1110 { 1111 short nc_errno; /* cached errno */ 1112 short nc_herrno; /* cached h_errno */ 1113 short nc_stat; /* cached exit status code */ 1114 short nc_flags; /* flag bits */ 1115 char *nc_cname; /* the canonical name */ 1116 time_t nc_exp; /* entry expires at */ 1117 }; 1118 1119 /* values for nc_flags */ 1120 #define NCF_VALID 0x0001 /* entry valid */ 1121 1122 /* hostsignature structure */ 1123 1124 struct hostsig_t 1125 { 1126 char *hs_sig; /* hostsignature */ 1127 time_t hs_exp; /* entry expires at */ 1128 }; 1129 1130 typedef struct hostsig_t HOSTSIG_T; 1131 1132 /* functions */ 1133 extern bool getcanonname __P((char *, int, bool, int *)); 1134 extern int getmxrr __P((char *, char **, unsigned short *, bool, int *, bool, int *)); 1135 extern char *hostsignature __P((MAILER *, char *)); 1136 extern int getfallbackmxrr __P((char *)); 1137 1138 /* 1139 ** Mapping functions 1140 ** 1141 ** These allow arbitrary mappings in the config file. The idea 1142 ** (albeit not the implementation) comes from IDA sendmail. 1143 */ 1144 1145 #define MAPCLASS struct _mapclass 1146 #define MAP struct _map 1147 #define MAXMAPACTIONS 5 /* size of map_actions array */ 1148 1149 1150 /* 1151 ** An actual map. 1152 */ 1153 1154 MAP 1155 { 1156 MAPCLASS *map_class; /* the class of this map */ 1157 MAPCLASS *map_orgclass; /* the original class of this map */ 1158 char *map_mname; /* name of this map */ 1159 long map_mflags; /* flags, see below */ 1160 char *map_file; /* the (nominal) filename */ 1161 ARBPTR_T map_db1; /* the open database ptr */ 1162 ARBPTR_T map_db2; /* an "extra" database pointer */ 1163 char *map_keycolnm; /* key column name */ 1164 char *map_valcolnm; /* value column name */ 1165 unsigned char map_keycolno; /* key column number */ 1166 unsigned char map_valcolno; /* value column number */ 1167 char map_coldelim; /* column delimiter */ 1168 char map_spacesub; /* spacesub */ 1169 char *map_app; /* to append to successful matches */ 1170 char *map_tapp; /* to append to "tempfail" matches */ 1171 char *map_domain; /* the (nominal) NIS domain */ 1172 char *map_rebuild; /* program to run to do auto-rebuild */ 1173 time_t map_mtime; /* last database modification time */ 1174 time_t map_timeout; /* timeout for map accesses */ 1175 int map_retry; /* # of retries for map accesses */ 1176 pid_t map_pid; /* PID of process which opened map */ 1177 int map_lockfd; /* auxiliary lock file descriptor */ 1178 short map_specificity; /* specificity of aliases */ 1179 MAP *map_stack[MAXMAPSTACK]; /* list for stacked maps */ 1180 short map_return[MAXMAPACTIONS]; /* return bitmaps for stacked maps */ 1181 }; 1182 1183 1184 /* bit values for map_mflags */ 1185 #define MF_VALID 0x00000001 /* this entry is valid */ 1186 #define MF_INCLNULL 0x00000002 /* include null byte in key */ 1187 #define MF_OPTIONAL 0x00000004 /* don't complain if map not found */ 1188 #define MF_NOFOLDCASE 0x00000008 /* don't fold case in keys */ 1189 #define MF_MATCHONLY 0x00000010 /* don't use the map value */ 1190 #define MF_OPEN 0x00000020 /* this entry is open */ 1191 #define MF_WRITABLE 0x00000040 /* open for writing */ 1192 #define MF_ALIAS 0x00000080 /* this is an alias file */ 1193 #define MF_TRY0NULL 0x00000100 /* try with no null byte */ 1194 #define MF_TRY1NULL 0x00000200 /* try with the null byte */ 1195 #define MF_LOCKED 0x00000400 /* this map is currently locked */ 1196 #define MF_ALIASWAIT 0x00000800 /* alias map in aliaswait state */ 1197 #define MF_IMPL_HASH 0x00001000 /* implicit: underlying hash database */ 1198 #define MF_IMPL_NDBM 0x00002000 /* implicit: underlying NDBM database */ 1199 /* 0x00004000 */ 1200 #define MF_APPEND 0x00008000 /* append new entry on rebuild */ 1201 #define MF_KEEPQUOTES 0x00010000 /* don't dequote key before lookup */ 1202 #define MF_NODEFER 0x00020000 /* don't defer if map lookup fails */ 1203 #define MF_REGEX_NOT 0x00040000 /* regular expression negation */ 1204 #define MF_DEFER 0x00080000 /* don't lookup map in defer mode */ 1205 #define MF_SINGLEMATCH 0x00100000 /* successful only if match one key */ 1206 /* 0x00200000 available for use */ 1207 #define MF_FILECLASS 0x00400000 /* this is a file class map */ 1208 #define MF_OPENBOGUS 0x00800000 /* open failed, don't call map_close */ 1209 #define MF_CLOSING 0x01000000 /* map is being closed */ 1210 1211 #define DYNOPENMAP(map) if (!bitset(MF_OPEN, (map)->map_mflags)) \ 1212 { \ 1213 if (!openmap(map)) \ 1214 return NULL; \ 1215 } 1216 1217 1218 /* indices for map_actions */ 1219 #define MA_NOTFOUND 0 /* member map returned "not found" */ 1220 #define MA_UNAVAIL 1 /* member map is not available */ 1221 #define MA_TRYAGAIN 2 /* member map returns temp failure */ 1222 1223 /* macros to handle MapTempFail */ 1224 #define BIT_IS_MTP 0x01 /* temp.failure occurred */ 1225 #define BIT_ASK_MTP 0x02 /* do we care about MapTempFail? */ 1226 #define RESET_MAPTEMPFAIL MapTempFail = 0 1227 #define INIT_MAPTEMPFAIL MapTempFail = BIT_ASK_MTP 1228 #define SET_MAPTEMPFAIL MapTempFail |= BIT_IS_MTP 1229 #define IS_MAPTEMPFAIL bitset(BIT_IS_MTP, MapTempFail) 1230 #define ASK_MAPTEMPFAIL bitset(BIT_ASK_MTP, MapTempFail) 1231 1232 /* 1233 ** The class of a map -- essentially the functions to call 1234 */ 1235 1236 MAPCLASS 1237 { 1238 char *map_cname; /* name of this map class */ 1239 char *map_ext; /* extension for database file */ 1240 short map_cflags; /* flag bits, see below */ 1241 bool (*map_parse)__P((MAP *, char *)); 1242 /* argument parsing function */ 1243 char *(*map_lookup)__P((MAP *, char *, char **, int *)); 1244 /* lookup function */ 1245 void (*map_store)__P((MAP *, char *, char *)); 1246 /* store function */ 1247 bool (*map_open)__P((MAP *, int)); 1248 /* open function */ 1249 void (*map_close)__P((MAP *)); 1250 /* close function */ 1251 }; 1252 1253 /* bit values for map_cflags */ 1254 #define MCF_ALIASOK 0x0001 /* can be used for aliases */ 1255 #define MCF_ALIASONLY 0x0002 /* usable only for aliases */ 1256 #define MCF_REBUILDABLE 0x0004 /* can rebuild alias files */ 1257 #define MCF_OPTFILE 0x0008 /* file name is optional */ 1258 #define MCF_NOTPERSIST 0x0010 /* don't keep map open all the time */ 1259 1260 /* functions */ 1261 extern void closemaps __P((bool)); 1262 extern bool impl_map_open __P((MAP *, int)); 1263 extern void initmaps __P((void)); 1264 extern MAP *makemapentry __P((char *)); 1265 extern void maplocaluser __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1266 extern char *map_rewrite __P((MAP *, const char *, size_t, char **)); 1267 #if NETINFO 1268 extern char *ni_propval __P((char *, char *, char *, char *, int)); 1269 #endif /* NETINFO */ 1270 extern bool openmap __P((MAP *)); 1271 #if USERDB 1272 extern void _udbx_close __P((void)); 1273 extern int udbexpand __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1274 extern char *udbsender __P((char *, SM_RPOOL_T *)); 1275 #endif /* USERDB */ 1276 1277 /* 1278 ** LDAP related items 1279 */ 1280 #if LDAPMAP 1281 /* struct defining LDAP Auth Methods */ 1282 struct lamvalues 1283 { 1284 char *lam_name; /* name of LDAP auth method */ 1285 int lam_code; /* numeric code */ 1286 }; 1287 1288 /* struct defining LDAP Alias Dereferencing */ 1289 struct ladvalues 1290 { 1291 char *lad_name; /* name of LDAP alias dereferencing method */ 1292 int lad_code; /* numeric code */ 1293 }; 1294 1295 /* struct defining LDAP Search Scope */ 1296 struct lssvalues 1297 { 1298 char *lss_name; /* name of LDAP search scope */ 1299 int lss_code; /* numeric code */ 1300 }; 1301 1302 /* functions */ 1303 extern bool ldapmap_parseargs __P((MAP *, char *)); 1304 extern void ldapmap_set_defaults __P((char *)); 1305 #endif /* LDAPMAP */ 1306 1307 /* 1308 ** PH related items 1309 */ 1310 1311 #if PH_MAP 1312 1313 # include <phclient.h> 1314 1315 struct ph_map_struct 1316 { 1317 char *ph_servers; /* list of ph servers */ 1318 char *ph_field_list; /* list of fields to search for match */ 1319 PH *ph; /* PH server handle */ 1320 int ph_fastclose; /* send "quit" command on close */ 1321 time_t ph_timeout; /* timeout interval */ 1322 }; 1323 typedef struct ph_map_struct PH_MAP_STRUCT; 1324 1325 #endif /* PH_MAP */ 1326 /* 1327 ** Process List (proclist) 1328 */ 1329 1330 #define NO_PID ((pid_t) 0) 1331 #ifndef PROC_LIST_SEG 1332 # define PROC_LIST_SEG 32 /* number of pids to alloc at a time */ 1333 #endif /* ! PROC_LIST_SEG */ 1334 1335 /* process types */ 1336 #define PROC_NONE 0 1337 #define PROC_DAEMON 1 1338 #define PROC_DAEMON_CHILD 2 1339 #define PROC_QUEUE 3 1340 #define PROC_QUEUE_CHILD 3 1341 #define PROC_CONTROL 4 1342 #define PROC_CONTROL_CHILD 5 1343 1344 /* functions */ 1345 extern void proc_list_add __P((pid_t, char *, int, int, int)); 1346 extern void proc_list_clear __P((void)); 1347 extern void proc_list_display __P((SM_FILE_T *, char *)); 1348 extern void proc_list_drop __P((pid_t, int, int *)); 1349 extern void proc_list_probe __P((void)); 1350 extern void proc_list_set __P((pid_t, char *)); 1351 extern void proc_list_signal __P((int, int)); 1352 1353 /* 1354 ** Symbol table definitions 1355 */ 1356 1357 struct symtab 1358 { 1359 char *s_name; /* name to be entered */ 1360 short s_symtype; /* general type (see below) */ 1361 struct symtab *s_next; /* pointer to next in chain */ 1362 union 1363 { 1364 BITMAP256 sv_class; /* bit-map of word classes */ 1365 ADDRESS *sv_addr; /* pointer to address header */ 1366 MAILER *sv_mailer; /* pointer to mailer */ 1367 char *sv_alias; /* alias */ 1368 MAPCLASS sv_mapclass; /* mapping function class */ 1369 MAP sv_map; /* mapping function */ 1370 HOSTSIG_T sv_hostsig; /* host signature */ 1371 MCI sv_mci; /* mailer connection info */ 1372 NAMECANON sv_namecanon; /* canonical name cache */ 1373 int sv_macro; /* macro name => id mapping */ 1374 int sv_ruleset; /* ruleset index */ 1375 struct hdrinfo sv_header; /* header metainfo */ 1376 char *sv_service[MAXMAPSTACK]; /* service switch */ 1377 #if LDAPMAP 1378 MAP *sv_lmap; /* Maps for LDAP connection */ 1379 #endif /* LDAPMAP */ 1380 #if MILTER 1381 struct milter *sv_milter; /* milter filter name */ 1382 #endif /* MILTER */ 1383 QUEUEGRP *sv_queue; /* pointer to queue */ 1384 } s_value; 1385 }; 1386 1387 typedef struct symtab STAB; 1388 1389 /* symbol types */ 1390 #define ST_UNDEF 0 /* undefined type */ 1391 #define ST_CLASS 1 /* class map */ 1392 #define ST_ADDRESS 2 /* an address in parsed format */ 1393 #define ST_MAILER 3 /* a mailer header */ 1394 #define ST_ALIAS 4 /* an alias */ 1395 #define ST_MAPCLASS 5 /* mapping function class */ 1396 #define ST_MAP 6 /* mapping function */ 1397 #define ST_HOSTSIG 7 /* host signature */ 1398 #define ST_NAMECANON 8 /* cached canonical name */ 1399 #define ST_MACRO 9 /* macro name to id mapping */ 1400 #define ST_RULESET 10 /* ruleset index */ 1401 #define ST_SERVICE 11 /* service switch entry */ 1402 #define ST_HEADER 12 /* special header flags */ 1403 #if LDAPMAP 1404 # define ST_LMAP 13 /* List head of maps for LDAP connection */ 1405 #endif /* LDAPMAP */ 1406 #if MILTER 1407 # define ST_MILTER 14 /* milter filter */ 1408 #endif /* MILTER */ 1409 #define ST_QUEUE 15 /* a queue entry */ 1410 1411 /* This entry must be last */ 1412 #define ST_MCI 16 /* mailer connection info (offset) */ 1413 1414 #define s_class s_value.sv_class 1415 #define s_address s_value.sv_addr 1416 #define s_mailer s_value.sv_mailer 1417 #define s_alias s_value.sv_alias 1418 #define s_mci s_value.sv_mci 1419 #define s_mapclass s_value.sv_mapclass 1420 #define s_hostsig s_value.sv_hostsig 1421 #define s_map s_value.sv_map 1422 #define s_namecanon s_value.sv_namecanon 1423 #define s_macro s_value.sv_macro 1424 #define s_ruleset s_value.sv_ruleset 1425 #define s_service s_value.sv_service 1426 #define s_header s_value.sv_header 1427 #if LDAPMAP 1428 # define s_lmap s_value.sv_lmap 1429 #endif /* LDAPMAP */ 1430 #if MILTER 1431 # define s_milter s_value.sv_milter 1432 #endif /* MILTER */ 1433 #define s_quegrp s_value.sv_queue 1434 1435 /* opcodes to stab */ 1436 #define ST_FIND 0 /* find entry */ 1437 #define ST_ENTER 1 /* enter if not there */ 1438 1439 /* functions */ 1440 extern STAB *stab __P((char *, int, int)); 1441 extern void stabapply __P((void (*)(STAB *, int), int)); 1442 1443 /* 1444 ** Operation, send, error, and MIME modes 1445 ** 1446 ** The operation mode describes the basic operation of sendmail. 1447 ** This can be set from the command line, and is "send mail" by 1448 ** default. 1449 ** 1450 ** The send mode tells how to send mail. It can be set in the 1451 ** configuration file. Its setting determines how quickly the 1452 ** mail will be delivered versus the load on your system. If the 1453 ** -v (verbose) flag is given, it will be forced to SM_DELIVER 1454 ** mode. 1455 ** 1456 ** The error mode tells how to return errors. 1457 */ 1458 1459 #define MD_DELIVER 'm' /* be a mail sender */ 1460 #define MD_SMTP 's' /* run SMTP on standard input */ 1461 #define MD_ARPAFTP 'a' /* obsolete ARPANET mode (Grey Book) */ 1462 #define MD_DAEMON 'd' /* run as a daemon */ 1463 #define MD_FGDAEMON 'D' /* run daemon in foreground */ 1464 #define MD_VERIFY 'v' /* verify: don't collect or deliver */ 1465 #define MD_TEST 't' /* test mode: resolve addrs only */ 1466 #define MD_INITALIAS 'i' /* initialize alias database */ 1467 #define MD_PRINT 'p' /* print the queue */ 1468 #define MD_PRINTNQE 'P' /* print number of entries in queue */ 1469 #define MD_FREEZE 'z' /* freeze the configuration file */ 1470 #define MD_HOSTSTAT 'h' /* print persistent host stat info */ 1471 #define MD_PURGESTAT 'H' /* purge persistent host stat info */ 1472 #define MD_QUEUERUN 'q' /* queue run */ 1473 1474 /* Note: see also include/sendmail/pathnames.h: GET_CLIENT_CF */ 1475 1476 /* values for e_sendmode -- send modes */ 1477 #define SM_DELIVER 'i' /* interactive delivery */ 1478 #define SM_FORK 'b' /* deliver in background */ 1479 #define SM_QUEUE 'q' /* queue, don't deliver */ 1480 #define SM_DEFER 'd' /* defer map lookups as well as queue */ 1481 #define SM_VERIFY 'v' /* verify only (used internally) */ 1482 1483 #define WILL_BE_QUEUED(m) ((m) == SM_QUEUE || (m) == SM_DEFER) 1484 1485 /* used only as a parameter to sendall */ 1486 #define SM_DEFAULT '\0' /* unspecified, use SendMode */ 1487 1488 /* functions */ 1489 extern void set_delivery_mode __P((int, ENVELOPE *)); 1490 1491 /* values for e_errormode -- error handling modes */ 1492 #define EM_PRINT 'p' /* print errors */ 1493 #define EM_MAIL 'm' /* mail back errors */ 1494 #define EM_WRITE 'w' /* write back errors */ 1495 #define EM_BERKNET 'e' /* special berknet processing */ 1496 #define EM_QUIET 'q' /* don't print messages (stat only) */ 1497 1498 1499 /* bit values for MimeMode */ 1500 #define MM_CVTMIME 0x0001 /* convert 8 to 7 bit MIME */ 1501 #define MM_PASS8BIT 0x0002 /* just send 8 bit data blind */ 1502 #define MM_MIME8BIT 0x0004 /* convert 8-bit data to MIME */ 1503 1504 1505 /* how to handle messages without any recipient addresses */ 1506 #define NRA_NO_ACTION 0 /* just leave it as is */ 1507 #define NRA_ADD_TO 1 /* add To: header */ 1508 #define NRA_ADD_APPARENTLY_TO 2 /* add Apparently-To: header */ 1509 #define NRA_ADD_BCC 3 /* add empty Bcc: header */ 1510 #define NRA_ADD_TO_UNDISCLOSED 4 /* add To: undisclosed:; header */ 1511 1512 1513 /* flags to putxline */ 1514 #define PXLF_NOTHINGSPECIAL 0 /* no special mapping */ 1515 #define PXLF_MAPFROM 0x0001 /* map From_ to >From_ */ 1516 #define PXLF_STRIP8BIT 0x0002 /* strip 8th bit */ 1517 #define PXLF_HEADER 0x0004 /* map newlines in headers */ 1518 #define PXLF_NOADDEOL 0x0008 /* if EOL not present, don't add one */ 1519 1520 /* 1521 ** Privacy flags 1522 ** These are bit values for the PrivacyFlags word. 1523 */ 1524 1525 #define PRIV_PUBLIC 0 /* what have I got to hide? */ 1526 #define PRIV_NEEDMAILHELO 0x00000001 /* insist on HELO for MAIL */ 1527 #define PRIV_NEEDEXPNHELO 0x00000002 /* insist on HELO for EXPN */ 1528 #define PRIV_NEEDVRFYHELO 0x00000004 /* insist on HELO for VRFY */ 1529 #define PRIV_NOEXPN 0x00000008 /* disallow EXPN command */ 1530 #define PRIV_NOVRFY 0x00000010 /* disallow VRFY command */ 1531 #define PRIV_AUTHWARNINGS 0x00000020 /* flag possible auth probs */ 1532 #define PRIV_NOVERB 0x00000040 /* disallow VERB command */ 1533 #define PRIV_RESTRICTMAILQ 0x00010000 /* restrict mailq command */ 1534 #define PRIV_RESTRICTQRUN 0x00020000 /* restrict queue run */ 1535 #define PRIV_RESTRICTEXPAND 0x00040000 /* restrict alias/forward expansion */ 1536 #define PRIV_NOETRN 0x00080000 /* disallow ETRN command */ 1537 #define PRIV_NOBODYRETN 0x00100000 /* do not return bodies on bounces */ 1538 #define PRIV_NORECEIPTS 0x00200000 /* disallow return receipts */ 1539 1540 /* don't give no info, anyway, anyhow */ 1541 #define PRIV_GOAWAY 0x0000ffff 1542 1543 /* struct defining such things */ 1544 struct prival 1545 { 1546 char *pv_name; /* name of privacy flag */ 1547 unsigned long pv_flag; /* numeric level */ 1548 }; 1549 1550 EXTERN unsigned long PrivacyFlags; /* privacy flags */ 1551 1552 1553 /* 1554 ** Flags passed to remotename, parseaddr, allocaddr, and buildaddr. 1555 */ 1556 1557 #define RF_SENDERADDR 0x001 /* this is a sender address */ 1558 #define RF_HEADERADDR 0x002 /* this is a header address */ 1559 #define RF_CANONICAL 0x004 /* strip comment information */ 1560 #define RF_ADDDOMAIN 0x008 /* OK to do domain extension */ 1561 #define RF_COPYPARSE 0x010 /* copy parsed user & host */ 1562 #define RF_COPYPADDR 0x020 /* copy print address */ 1563 #define RF_COPYALL (RF_COPYPARSE|RF_COPYPADDR) 1564 #define RF_COPYNONE 0 1565 1566 /* 1567 ** Flags passed to rscheck 1568 */ 1569 1570 #define RSF_RMCOMM 0x0001 /* strip comments */ 1571 #define RSF_UNSTRUCTURED 0x0002 /* unstructured, ignore syntax errors */ 1572 #define RSF_COUNT 0x0004 /* count rejections (statistics)? */ 1573 1574 /* 1575 ** Flags passed to mime8to7 and putheader. 1576 */ 1577 1578 #define M87F_OUTER 0 /* outer context */ 1579 #define M87F_NO8BIT 0x0001 /* can't have 8-bit in this section */ 1580 #define M87F_DIGEST 0x0002 /* processing multipart/digest */ 1581 #define M87F_NO8TO7 0x0004 /* don't do 8->7 bit conversions */ 1582 1583 /* functions */ 1584 extern void mime7to8 __P((MCI *, HDR *, ENVELOPE *)); 1585 extern int mime8to7 __P((MCI *, HDR *, ENVELOPE *, char **, int)); 1586 1587 /* 1588 ** Flags passed to returntosender. 1589 */ 1590 1591 #define RTSF_NO_BODY 0 /* send headers only */ 1592 #define RTSF_SEND_BODY 0x0001 /* include body of message in return */ 1593 #define RTSF_PM_BOUNCE 0x0002 /* this is a postmaster bounce */ 1594 1595 /* functions */ 1596 extern int returntosender __P((char *, ADDRESS *, int, ENVELOPE *)); 1597 1598 /* 1599 ** Regular UNIX sockaddrs are too small to handle ISO addresses, so 1600 ** we are forced to declare a supertype here. 1601 */ 1602 1603 #if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 1604 union bigsockaddr 1605 { 1606 struct sockaddr sa; /* general version */ 1607 # if NETUNIX 1608 struct sockaddr_un sunix; /* UNIX family */ 1609 # endif /* NETUNIX */ 1610 # if NETINET 1611 struct sockaddr_in sin; /* INET family */ 1612 # endif /* NETINET */ 1613 # if NETINET6 1614 struct sockaddr_in6 sin6; /* INET/IPv6 */ 1615 # endif /* NETINET6 */ 1616 # if NETISO 1617 struct sockaddr_iso siso; /* ISO family */ 1618 # endif /* NETISO */ 1619 # if NETNS 1620 struct sockaddr_ns sns; /* XNS family */ 1621 # endif /* NETNS */ 1622 # if NETX25 1623 struct sockaddr_x25 sx25; /* X.25 family */ 1624 # endif /* NETX25 */ 1625 }; 1626 1627 # define SOCKADDR union bigsockaddr 1628 1629 /* functions */ 1630 extern char *anynet_ntoa __P((SOCKADDR *)); 1631 # if NETINET6 1632 extern char *anynet_ntop __P((struct in6_addr *, char *, size_t)); 1633 extern int anynet_pton __P((int, const char *, void *)); 1634 # endif /* NETINET6 */ 1635 extern char *hostnamebyanyaddr __P((SOCKADDR *)); 1636 extern char *validate_connection __P((SOCKADDR *, char *, ENVELOPE *)); 1637 # if SASL >= 20000 1638 extern bool iptostring __P((SOCKADDR *, SOCKADDR_LEN_T, char *, unsigned)); 1639 # endif /* SASL >= 20000 */ 1640 1641 #endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */ 1642 1643 /* 1644 ** Mail Filters (milter) 1645 */ 1646 1647 /* 1648 ** 32-bit type used by milter 1649 ** (needed by libmilter even if MILTER isn't defined) 1650 */ 1651 1652 typedef SM_INT32 mi_int32; 1653 1654 #if MILTER 1655 # define SMFTO_WRITE 0 /* Timeout for sending information */ 1656 # define SMFTO_READ 1 /* Timeout waiting for a response */ 1657 # define SMFTO_EOM 2 /* Timeout for ACK/NAK to EOM */ 1658 # define SMFTO_CONNECT 3 /* Timeout for connect() */ 1659 1660 # define SMFTO_NUM_TO 4 /* Total number of timeouts */ 1661 1662 struct milter 1663 { 1664 char *mf_name; /* filter name */ 1665 BITMAP256 mf_flags; /* MTA flags */ 1666 mi_int32 mf_fvers; /* filter version */ 1667 mi_int32 mf_fflags; /* filter flags */ 1668 mi_int32 mf_pflags; /* protocol flags */ 1669 char *mf_conn; /* connection info */ 1670 int mf_sock; /* connected socket */ 1671 char mf_state; /* state of filter */ 1672 time_t mf_timeout[SMFTO_NUM_TO]; /* timeouts */ 1673 }; 1674 1675 /* MTA flags */ 1676 # define SMF_REJECT 'R' /* Reject connection on filter fail */ 1677 # define SMF_TEMPFAIL 'T' /* tempfail connection on failure */ 1678 1679 /* states */ 1680 # define SMFS_CLOSED 'C' /* closed for all further actions */ 1681 # define SMFS_OPEN 'O' /* connected to remote milter filter */ 1682 # define SMFS_INMSG 'M' /* currently servicing a message */ 1683 # define SMFS_DONE 'D' /* done with current message */ 1684 # define SMFS_CLOSABLE 'Q' /* done with current connection */ 1685 # define SMFS_ERROR 'E' /* error state */ 1686 # define SMFS_READY 'R' /* ready for action */ 1687 1688 EXTERN struct milter *InputFilters[MAXFILTERS]; 1689 EXTERN char *InputFilterList; 1690 EXTERN int MilterLogLevel; 1691 1692 # if _FFR_MILTER_PERDAEMON 1693 /* functions */ 1694 extern void setup_daemon_milters __P(()); 1695 # endif /* _FFR_MILTER_PERDAEMON */ 1696 #endif /* MILTER */ 1697 1698 /* 1699 ** Vendor codes 1700 ** 1701 ** Vendors can customize sendmail to add special behaviour, 1702 ** generally for back compatibility. Ideally, this should 1703 ** be set up in the .cf file using the "V" command. However, 1704 ** it's quite reasonable for some vendors to want the default 1705 ** be their old version; this can be set using 1706 ** -DVENDOR_DEFAULT=VENDOR_xxx 1707 ** in the Makefile. 1708 ** 1709 ** Vendors should apply to sendmail@sendmail.org for 1710 ** unique vendor codes. 1711 */ 1712 1713 #define VENDOR_BERKELEY 1 /* Berkeley-native configuration file */ 1714 #define VENDOR_SUN 2 /* Sun-native configuration file */ 1715 #define VENDOR_HP 3 /* Hewlett-Packard specific config syntax */ 1716 #define VENDOR_IBM 4 /* IBM specific config syntax */ 1717 #define VENDOR_SENDMAIL 5 /* Sendmail, Inc. specific config syntax */ 1718 #define VENDOR_DEC 6 /* Compaq, DEC, Digital */ 1719 1720 /* prototypes for vendor-specific hook routines */ 1721 extern void vendor_daemon_setup __P((ENVELOPE *)); 1722 extern void vendor_set_uid __P((UID_T)); 1723 1724 1725 /* 1726 ** Terminal escape codes. 1727 ** 1728 ** To make debugging output clearer. 1729 */ 1730 1731 struct termescape 1732 { 1733 char *te_rv_on; /* turn reverse-video on */ 1734 char *te_rv_off; /* turn reverse-video off */ 1735 }; 1736 1737 /* 1738 ** Additional definitions 1739 */ 1740 1741 /* 1742 ** d_flags, see daemon.c 1743 ** general rule: lower case: required, upper case: No 1744 */ 1745 1746 #define D_AUTHREQ 'a' /* authentication required */ 1747 #define D_BINDIF 'b' /* use if_addr for outgoing connection */ 1748 #define D_CANONREQ 'c' /* canonification required (cf) */ 1749 #define D_IFNHELO 'h' /* use if name for HELO */ 1750 #define D_FQMAIL 'f' /* fq sender address required (cf) */ 1751 #define D_FQRCPT 'r' /* fq recipient address required (cf) */ 1752 #if _FFR_SMTP_SSL 1753 # define D_SMTPS 's' /* SMTP over SSL (smtps) */ 1754 #endif /* _FFR_SMTP_SSL */ 1755 #define D_UNQUALOK 'u' /* unqualified address is ok (cf) */ 1756 #define D_NOAUTH 'A' /* no AUTH */ 1757 #define D_NOCANON 'C' /* no canonification (cf) */ 1758 #define D_NOETRN 'E' /* no ETRN (MSA) */ 1759 #define D_NOTLS 'S' /* don't use STARTTLS */ 1760 #define D_ETRNONLY ((char)0x01) /* allow only ETRN (disk low) */ 1761 #define D_OPTIONAL 'O' /* optional socket */ 1762 #define D_DISABLE ((char)0x02) /* optional socket disabled */ 1763 #define D_ISSET ((char)0x03) /* this client struct is set */ 1764 1765 #if STARTTLS 1766 /* 1767 ** TLS 1768 */ 1769 1770 /* what to do in the TLS initialization */ 1771 #define TLS_I_NONE 0x00000000 /* no requirements... */ 1772 #define TLS_I_CERT_EX 0x00000001 /* CERT must exist */ 1773 #define TLS_I_CERT_UNR 0x00000002 /* CERT must be g/o unreadable */ 1774 #define TLS_I_KEY_EX 0x00000004 /* KEY must exist */ 1775 #define TLS_I_KEY_UNR 0x00000008 /* KEY must be g/o unreadable */ 1776 #define TLS_I_CERTP_EX 0x00000010 /* CA CERT PATH must exist */ 1777 #define TLS_I_CERTP_UNR 0x00000020 /* CA CERT PATH must be g/o unreadable */ 1778 #define TLS_I_CERTF_EX 0x00000040 /* CA CERT FILE must exist */ 1779 #define TLS_I_CERTF_UNR 0x00000080 /* CA CERT FILE must be g/o unreadable */ 1780 #define TLS_I_RSA_TMP 0x00000100 /* RSA TMP must be generated */ 1781 #define TLS_I_USE_KEY 0x00000200 /* private key must usable */ 1782 #define TLS_I_USE_CERT 0x00000400 /* certificate must be usable */ 1783 #define TLS_I_VRFY_PATH 0x00000800 /* load verify path must succeed */ 1784 #define TLS_I_VRFY_LOC 0x00001000 /* load verify default must succeed */ 1785 #define TLS_I_CACHE 0x00002000 /* require cache */ 1786 #define TLS_I_TRY_DH 0x00004000 /* try DH certificate */ 1787 #define TLS_I_REQ_DH 0x00008000 /* require DH certificate */ 1788 #define TLS_I_DHPAR_EX 0x00010000 /* require DH parameters */ 1789 #define TLS_I_DHPAR_UNR 0x00020000 /* DH param. must be g/o unreadable */ 1790 #define TLS_I_DH512 0x00040000 /* generate 512bit DH param */ 1791 #define TLS_I_DH1024 0x00080000 /* generate 1024bit DH param */ 1792 #define TLS_I_DH2048 0x00100000 /* generate 2048bit DH param */ 1793 #define TLS_I_NO_VRFY 0x00200000 /* do not require authentication */ 1794 #define TLS_I_KEY_OUNR 0x00400000 /* KEY must be o unreadable */ 1795 1796 /* require server cert */ 1797 #define TLS_I_SRV_CERT (TLS_I_CERT_EX | TLS_I_KEY_EX | \ 1798 TLS_I_KEY_UNR | TLS_I_KEY_OUNR | \ 1799 TLS_I_CERTP_EX | TLS_I_CERTF_EX | \ 1800 TLS_I_USE_KEY | TLS_I_USE_CERT) 1801 1802 /* server requirements */ 1803 #define TLS_I_SRV (TLS_I_SRV_CERT | TLS_I_RSA_TMP | TLS_I_VRFY_PATH | \ 1804 TLS_I_VRFY_LOC | TLS_I_TRY_DH | TLS_I_DH512) 1805 1806 /* client requirements */ 1807 #define TLS_I_CLT (TLS_I_KEY_UNR | TLS_I_KEY_OUNR) 1808 1809 #define TLS_AUTH_OK 0 1810 #define TLS_AUTH_NO 1 1811 #define TLS_AUTH_FAIL (-1) 1812 1813 /* functions */ 1814 extern bool init_tls_library __P((void)); 1815 extern bool inittls __P((SSL_CTX **, unsigned long, bool, char *, char *, char *, char *, char *)); 1816 extern bool initclttls __P((bool)); 1817 extern void setclttls __P((bool)); 1818 extern bool initsrvtls __P((bool)); 1819 extern int tls_get_info __P((SSL *, bool, char *, MACROS_T *, bool)); 1820 extern int endtls __P((SSL *, char *)); 1821 extern void tlslogerr __P((char *)); 1822 1823 1824 EXTERN char *CACERTpath; /* path to CA certificates (dir. with hashes) */ 1825 EXTERN char *CACERTfile; /* file with CA certificate */ 1826 EXTERN char *CltCERTfile; /* file with client certificate */ 1827 EXTERN char *Cltkeyfile; /* file with client private key */ 1828 # if _FFR_TLS_1 1829 EXTERN char *CipherList; /* list of ciphers */ 1830 EXTERN char *DHParams5; /* file with DH parameters (512) */ 1831 # endif /* _FFR_TLS_1 */ 1832 EXTERN char *DHParams; /* file with DH parameters */ 1833 EXTERN char *RandFile; /* source of random data */ 1834 EXTERN char *SrvCERTfile; /* file with server certificate */ 1835 EXTERN char *Srvkeyfile; /* file with server private key */ 1836 EXTERN unsigned long TLS_Srv_Opts; /* TLS server options */ 1837 #endif /* STARTTLS */ 1838 1839 /* 1840 ** Queue related items 1841 */ 1842 1843 /* queue file names */ 1844 #if _FFR_QUARANTINE 1845 # define ANYQFL_LETTER '?' 1846 # define QUARQF_LETTER 'h' 1847 #else /* _FFR_QUARANTINE */ 1848 /* Before quarantining, ANYQF == NORMQF */ 1849 # define ANYQFL_LETTER 'q' 1850 #endif /* _FFR_QUARANTINE */ 1851 #define DATAFL_LETTER 'd' 1852 #define XSCRPT_LETTER 'x' 1853 #define NORMQF_LETTER 'q' 1854 #define NEWQFL_LETTER 't' 1855 1856 # define TEMPQF_LETTER 'T' 1857 # define LOSEQF_LETTER 'Q' 1858 1859 /* queue sort order */ 1860 #define QSO_BYPRIORITY 0 /* sort by message priority */ 1861 #define QSO_BYHOST 1 /* sort by first host name */ 1862 #define QSO_BYTIME 2 /* sort by submission time */ 1863 #define QSO_BYFILENAME 3 /* sort by file name only */ 1864 #define QSO_RANDOM 4 /* sort in random order */ 1865 #define QSO_BYMODTIME 5 /* sort by modification time */ 1866 #if _FFR_RHS 1867 # define QSO_BYSHUFFLE 6 /* sort by shuffled host name */ 1868 #endif /* _FFR_RHS */ 1869 1870 #if _FFR_QUEUEDELAY 1871 # define QD_LINEAR 0 /* linear (old) delay alg */ 1872 # define QD_EXP 1 /* exponential delay alg */ 1873 #endif /* _FFR_QUEUEDELAY */ 1874 1875 #define NOQGRP (-1) /* no queue group (yet) */ 1876 #define ENVQGRP (-2) /* use queue group of envelope */ 1877 #define NOAQGRP (-3) /* no queue group in addr (yet) */ 1878 #define ISVALIDQGRP(x) ((x) >= 0) /* valid queue group? */ 1879 #define NOQDIR (-1) /* no queue directory (yet) */ 1880 #define ENVQDIR (-2) /* use queue directory of envelope */ 1881 #define NOAQDIR (-3) /* no queue directory in addr (yet) */ 1882 #define ISVALIDQDIR(x) ((x) >= 0) /* valid queue directory? */ 1883 #define RS_QUEUEGROUP "queuegroup" /* ruleset for queue group selection */ 1884 1885 #define NOW ((time_t) (-1)) /* queue return: now */ 1886 1887 /* SuperSafe values */ 1888 #define SAFE_NO 0 /* no fsync(): don't use... */ 1889 #define SAFE_INTERACTIVE 1 /* limit fsync() in -odi */ 1890 #define SAFE_REALLY 2 /* always fsync() */ 1891 1892 #if _FFR_QUARANTINE 1893 /* QueueMode bits */ 1894 # define QM_NORMAL ' ' 1895 # define QM_QUARANTINE 'Q' 1896 # define QM_LOST 'L' 1897 #endif /* _FFR_QUARANTINE */ 1898 1899 /* Queue Run Limitations */ 1900 struct queue_char 1901 { 1902 char *queue_match; /* string to match */ 1903 bool queue_negate; /* or not match, if set */ 1904 struct queue_char *queue_next; 1905 }; 1906 1907 typedef struct queue_char QUEUE_CHAR; 1908 1909 EXTERN int volatile CurRunners; /* current number of runner children */ 1910 EXTERN int MaxQueueRun; /* maximum number of jobs in one queue run */ 1911 EXTERN int MaxQueueChildren; /* max # of forked queue children */ 1912 EXTERN int MaxRunnersPerQueue; /* max # proc's active in queue group */ 1913 EXTERN int NiceQueueRun; /* nice queue runs to this value */ 1914 EXTERN int NumQueue; /* number of queue groups */ 1915 EXTERN int QueueFileMode; /* mode on files in mail queue */ 1916 #if _FFR_QUARANTINE 1917 EXTERN int QueueMode; /* which queue items to act upon */ 1918 #endif /* _FFR_QUARANTINE */ 1919 EXTERN int QueueSortOrder; /* queue sorting order algorithm */ 1920 EXTERN time_t MinQueueAge; /* min delivery interval */ 1921 EXTERN time_t QueueIntvl; /* intervals between running the queue */ 1922 EXTERN char *QueueDir; /* location of queue directory */ 1923 #if _FFR_QUEUEDELAY 1924 EXTERN int QueueAlg; /* algorithm for queue delays */ 1925 EXTERN time_t QueueInitDelay; /* initial queue delay */ 1926 EXTERN time_t QueueMaxDelay; /* maximum queue delay */ 1927 #endif /* _FFR_QUEUEDELAY */ 1928 EXTERN QUEUE_CHAR *QueueLimitId; /* limit queue run to id */ 1929 #if _FFR_QUARANTINE 1930 EXTERN QUEUE_CHAR *QueueLimitQuarantine; /* limit queue run to quarantine reason */ 1931 #endif /* _FFR_QUARANTINE */ 1932 EXTERN QUEUE_CHAR *QueueLimitRecipient; /* limit queue run to rcpt */ 1933 EXTERN QUEUE_CHAR *QueueLimitSender; /* limit queue run to sender */ 1934 EXTERN QUEUEGRP *Queue[MAXQUEUEGROUPS + 1]; /* queue groups */ 1935 1936 /* functions */ 1937 extern void assign_queueid __P((ENVELOPE *)); 1938 extern ADDRESS *copyqueue __P((ADDRESS *, SM_RPOOL_T *)); 1939 extern void cleanup_queues __P((void)); 1940 extern bool doqueuerun __P((void)); 1941 extern void initsys __P((ENVELOPE *)); 1942 extern void loseqfile __P((ENVELOPE *, char *)); 1943 extern int name2qid __P((char *)); 1944 extern char *qid_printname __P((ENVELOPE *)); 1945 extern char *qid_printqueue __P((int, int)); 1946 #if _FFR_QUARANTINE 1947 extern void quarantine_queue __P((char *, int)); 1948 #endif /* _FFR_QUARANTINE */ 1949 extern char *queuename __P((ENVELOPE *, int)); 1950 extern void queueup __P((ENVELOPE *, bool, bool)); 1951 extern bool runqueue __P((bool, bool, bool, bool)); 1952 extern int run_work_group __P((int, bool, bool, bool, bool)); 1953 extern void set_def_queueval __P((QUEUEGRP *, bool)); 1954 extern void setup_queues __P((bool)); 1955 extern bool setnewqueue __P((ENVELOPE *)); 1956 extern bool shouldqueue __P((long, time_t)); 1957 extern void sync_queue_time __P((void)); 1958 extern int print_single_queue __P((int, int)); 1959 #if REQUIRES_DIR_FSYNC 1960 # define SYNC_DIR(path, panic) sync_dir(path, panic) 1961 extern void sync_dir __P((char *, bool)); 1962 #else /* REQUIRES_DIR_FSYNC */ 1963 # define SYNC_DIR(path, panic) ((void) 0) 1964 #endif /* REQUIRES_DIR_FSYNC */ 1965 1966 /* 1967 ** Timeouts 1968 ** 1969 ** Indicated values are the MINIMUM per RFC 1123 section 5.3.2. 1970 */ 1971 1972 EXTERN struct 1973 { 1974 /* RFC 1123-specified timeouts [minimum value] */ 1975 time_t to_initial; /* initial greeting timeout [5m] */ 1976 time_t to_mail; /* MAIL command [5m] */ 1977 time_t to_rcpt; /* RCPT command [5m] */ 1978 time_t to_datainit; /* DATA initiation [2m] */ 1979 time_t to_datablock; /* DATA block [3m] */ 1980 time_t to_datafinal; /* DATA completion [10m] */ 1981 time_t to_nextcommand; /* next command [5m] */ 1982 /* following timeouts are not mentioned in RFC 1123 */ 1983 time_t to_iconnect; /* initial connection timeout (first try) */ 1984 time_t to_connect; /* initial connection timeout (later tries) */ 1985 time_t to_aconnect; /* all connections timeout (MX and A records) */ 1986 time_t to_rset; /* RSET command */ 1987 time_t to_helo; /* HELO command */ 1988 time_t to_quit; /* QUIT command */ 1989 time_t to_miscshort; /* misc short commands (NOOP, VERB, etc) */ 1990 time_t to_ident; /* IDENT protocol requests */ 1991 time_t to_fileopen; /* opening :include: and .forward files */ 1992 time_t to_control; /* process a control socket command */ 1993 time_t to_lhlo; /* LMTP: LHLO command */ 1994 #if SASL 1995 time_t to_auth; /* AUTH dialogue [10m] */ 1996 #endif /* SASL */ 1997 #if STARTTLS 1998 time_t to_starttls; /* STARTTLS dialogue [10m] */ 1999 #endif /* STARTTLS */ 2000 /* following are per message */ 2001 time_t to_q_return[MAXTOCLASS]; /* queue return timeouts */ 2002 time_t to_q_warning[MAXTOCLASS]; /* queue warning timeouts */ 2003 time_t res_retrans[MAXRESTOTYPES]; /* resolver retransmit */ 2004 int res_retry[MAXRESTOTYPES]; /* resolver retry */ 2005 } TimeOuts; 2006 2007 /* timeout classes for return and warning timeouts */ 2008 #define TOC_NORMAL 0 /* normal delivery */ 2009 #define TOC_URGENT 1 /* urgent delivery */ 2010 #define TOC_NONURGENT 2 /* non-urgent delivery */ 2011 2012 /* resolver timeout specifiers */ 2013 #define RES_TO_FIRST 0 /* first attempt */ 2014 #define RES_TO_NORMAL 1 /* subsequent attempts */ 2015 #define RES_TO_DEFAULT 2 /* default value */ 2016 2017 /* functions */ 2018 extern void inittimeouts __P((char *, bool)); 2019 2020 /* 2021 ** Interface probing 2022 */ 2023 2024 #define DPI_PROBENONE 0 /* Don't probe any interfaces */ 2025 #define DPI_PROBEALL 1 /* Probe all interfaces */ 2026 #define DPI_SKIPLOOPBACK 2 /* Don't probe loopback interfaces */ 2027 2028 /* 2029 ** Trace information 2030 */ 2031 2032 /* macros for debugging flags */ 2033 #define tTd(flag, level) (tTdvect[flag] >= (unsigned char)level) 2034 #define tTdlevel(flag) (tTdvect[flag]) 2035 2036 /* variables */ 2037 extern unsigned char tTdvect[100]; /* trace vector */ 2038 2039 /* 2040 ** Miscellaneous information. 2041 */ 2042 2043 /* 2044 ** The "no queue id" queue id for sm_syslog 2045 */ 2046 2047 #define NOQID "*~*" 2048 2049 /* use id or NOQID (to avoid NOQUEUE in logfile) */ 2050 #define E_ID(id) ((id) == NULL ? NOQID : (id)) 2051 2052 #define CURHOSTNAME (CurHostName == NULL ? "local" : CurHostName) 2053 2054 /* 2055 ** Some in-line functions 2056 */ 2057 2058 /* set exit status */ 2059 #define setstat(s) { \ 2060 if (ExitStat == EX_OK || ExitStat == EX_TEMPFAIL) \ 2061 ExitStat = s; \ 2062 } 2063 2064 /* make a copy of a string */ 2065 #define newstr(s) strcpy(xalloc(strlen(s) + 1), s) 2066 2067 #define STRUCTCOPY(s, d) d = s 2068 2069 /* free a pointer if it isn't NULL and set it to NULL */ 2070 #define SM_FREE_CLR(p) \ 2071 if ((p) != NULL) \ 2072 { \ 2073 sm_free(p); \ 2074 (p) = NULL; \ 2075 } \ 2076 else 2077 2078 /* 2079 ** Update a permanent string variable with a new value. 2080 ** The old value is freed, the new value is strdup'ed. 2081 ** 2082 ** We use sm_pstrdup_x to duplicate the string because it raises 2083 ** an exception on error, and because it allocates "permanent storage" 2084 ** which is not expected to be freed before process exit. 2085 ** The latter is important for memory leak analysis. 2086 ** 2087 ** If an exception occurs while strdup'ing the new value, 2088 ** then the variable remains set to the old value. 2089 ** That's why the strdup must occur before we free the old value. 2090 ** 2091 ** The macro uses a do loop so that this idiom will work: 2092 ** if (...) 2093 ** PSTRSET(var, val1); 2094 ** else 2095 ** PSTRSET(var, val2); 2096 */ 2097 #define PSTRSET(var, val) \ 2098 do \ 2099 { \ 2100 char *_newval = sm_pstrdup_x(val); \ 2101 if (var != NULL) \ 2102 sm_free(var); \ 2103 var = _newval; \ 2104 } while (0) 2105 2106 /* 2107 ** Global variables. 2108 */ 2109 2110 EXTERN bool AllowBogusHELO; /* allow syntax errors on HELO command */ 2111 EXTERN bool CheckAliases; /* parse addresses during newaliases */ 2112 EXTERN bool ColonOkInAddr; /* single colon legal in address */ 2113 #if !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) 2114 EXTERN bool ConfigFileRead; /* configuration file has been read */ 2115 #endif /* !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) */ 2116 EXTERN bool volatile DataProgress; /* have we sent anything since last check */ 2117 EXTERN bool DisConnected; /* running with OutChannel redirect to transcript file */ 2118 EXTERN bool DontExpandCnames; /* do not $[...$] expand CNAMEs */ 2119 EXTERN bool DontInitGroups; /* avoid initgroups() because of NIS cost */ 2120 EXTERN bool DontLockReadFiles; /* don't read lock support files */ 2121 EXTERN bool DontPruneRoutes; /* don't prune source routes */ 2122 EXTERN bool ForkQueueRuns; /* fork for each job when running the queue */ 2123 EXTERN bool FromFlag; /* if set, "From" person is explicit */ 2124 EXTERN bool GrabTo; /* if set, get recipients from msg */ 2125 EXTERN bool HasEightBits; /* has at least one eight bit input byte */ 2126 EXTERN bool HasWildcardMX; /* don't use MX records when canonifying */ 2127 EXTERN bool HoldErrs; /* only output errors to transcript */ 2128 EXTERN bool IgnoreHostStatus; /* ignore long term host status files */ 2129 EXTERN bool IgnrDot; /* don't let dot end messages */ 2130 EXTERN bool LogUsrErrs; /* syslog user errors (e.g., SMTP RCPT cmd) */ 2131 EXTERN bool MatchGecos; /* look for user names in gecos field */ 2132 EXTERN bool MeToo; /* send to the sender also */ 2133 EXTERN bool NoAlias; /* suppress aliasing */ 2134 EXTERN bool NoConnect; /* don't connect to non-local mailers */ 2135 EXTERN bool OnlyOneError; /* .... or only want to give one SMTP reply */ 2136 EXTERN bool QuickAbort; /* .... but only if we want a quick abort */ 2137 EXTERN bool ResNoAliases; /* don't use $HOSTALIASES */ 2138 EXTERN bool volatile RestartWorkGroup; /* daemon needs to restart some work groups */ 2139 EXTERN bool RrtImpliesDsn; /* turn Return-Receipt-To: into DSN */ 2140 EXTERN bool SaveFrom; /* save leading "From" lines */ 2141 EXTERN bool SendMIMEErrors; /* send error messages in MIME format */ 2142 EXTERN bool SevenBitInput; /* force 7-bit data on input */ 2143 EXTERN bool SingleLineFromHeader; /* force From: header to be one line */ 2144 EXTERN bool SingleThreadDelivery; /* single thread hosts on delivery */ 2145 #if _FFR_SOFT_BOUNCE 2146 EXTERN bool SoftBounce; /* replace 5xy by 4xy (for testing) */ 2147 #endif /* _FFR_SOFT_BOUNCE */ 2148 EXTERN bool volatile StopRequest; /* stop sending output */ 2149 EXTERN bool SuprErrs; /* set if we are suppressing errors */ 2150 EXTERN bool TryNullMXList; /* if we are the best MX, try host directly */ 2151 EXTERN bool UseMSP; /* mail submission: group writable queue ok? */ 2152 EXTERN bool WorkAroundBrokenAAAA; /* some nameservers return SERVFAIL on AAAA queries */ 2153 EXTERN bool UseErrorsTo; /* use Errors-To: header (back compat) */ 2154 EXTERN bool UseNameServer; /* using DNS -- interpret h_errno & MX RRs */ 2155 EXTERN char InetMode; /* default network for daemon mode */ 2156 EXTERN char OpMode; /* operation mode, see below */ 2157 EXTERN char SpaceSub; /* substitution for <lwsp> */ 2158 EXTERN int BadRcptThrottle; /* Throttle rejected RCPTs per SMTP message */ 2159 EXTERN int CheckpointInterval; /* queue file checkpoint interval */ 2160 EXTERN int ConfigLevel; /* config file level */ 2161 EXTERN int ConnRateThrottle; /* throttle for SMTP connection rate */ 2162 EXTERN int volatile CurChildren; /* current number of daemonic children */ 2163 EXTERN int CurrentLA; /* current load average */ 2164 EXTERN int DefaultNotify; /* default DSN notification flags */ 2165 EXTERN int DelayLA; /* load average to delay connections */ 2166 EXTERN int DontProbeInterfaces; /* don't probe interfaces for names */ 2167 EXTERN int Errors; /* set if errors (local to single pass) */ 2168 EXTERN int ExitStat; /* exit status code */ 2169 EXTERN int FastSplit; /* fast initial splitting of envelopes */ 2170 EXTERN int FileMode; /* mode on files */ 2171 EXTERN int LineNumber; /* line number in current input */ 2172 EXTERN int LogLevel; /* level of logging to perform */ 2173 EXTERN int MaxAliasRecursion; /* maximum depth of alias recursion */ 2174 EXTERN int MaxChildren; /* maximum number of daemonic children */ 2175 EXTERN int MaxForwardEntries; /* maximum number of forward entries */ 2176 EXTERN int MaxHeadersLength; /* max length of headers */ 2177 EXTERN int MaxHopCount; /* max # of hops until bounce */ 2178 EXTERN int MaxMacroRecursion; /* maximum depth of macro recursion */ 2179 EXTERN int MaxMimeFieldLength; /* maximum MIME field length */ 2180 EXTERN int MaxMimeHeaderLength; /* maximum MIME header length */ 2181 2182 EXTERN int MaxRcptPerMsg; /* max recipients per SMTP message */ 2183 EXTERN int MaxRuleRecursion; /* maximum depth of ruleset recursion */ 2184 EXTERN int MimeMode; /* MIME processing mode */ 2185 EXTERN int NoRecipientAction; 2186 2187 #if SM_CONF_SHM 2188 EXTERN int Numfilesys; /* number of queue file systems */ 2189 EXTERN int *PNumFileSys; 2190 # define NumFileSys (*PNumFileSys) 2191 # else /* SM_CONF_SHM */ 2192 EXTERN int NumFileSys; /* number of queue file systems */ 2193 # endif /* SM_CONF_SHM */ 2194 2195 EXTERN int QueueLA; /* load average starting forced queueing */ 2196 EXTERN int RefuseLA; /* load average refusing connections */ 2197 EXTERN int SuperSafe; /* be extra careful, even if expensive */ 2198 EXTERN int VendorCode; /* vendor-specific operation enhancements */ 2199 EXTERN int Verbose; /* set if blow-by-blow desired */ 2200 EXTERN gid_t DefGid; /* default gid to run as */ 2201 EXTERN gid_t RealGid; /* real gid of caller */ 2202 EXTERN gid_t RunAsGid; /* GID to become for bulk of run */ 2203 EXTERN gid_t EffGid; /* effective gid */ 2204 #if SM_CONF_SHM 2205 EXTERN key_t ShmKey; /* shared memory key */ 2206 # if _FFR_SELECT_SHM 2207 EXTERN char *ShmKeyFile; /* shared memory key file */ 2208 # endif /* _FFR_SELECT_SHM */ 2209 #endif /* SM_CONF_SHM */ 2210 EXTERN pid_t CurrentPid; /* current process id */ 2211 EXTERN pid_t DaemonPid; /* process id of daemon */ 2212 EXTERN uid_t DefUid; /* default uid to run as */ 2213 EXTERN uid_t RealUid; /* real uid of caller */ 2214 EXTERN uid_t RunAsUid; /* UID to become for bulk of run */ 2215 EXTERN uid_t TrustedUid; /* uid of trusted user for files and startup */ 2216 EXTERN size_t DataFileBufferSize; /* size of buf for in-core data file */ 2217 EXTERN time_t DeliverByMin; /* deliver by minimum time */ 2218 EXTERN time_t DialDelay; /* delay between dial-on-demand tries */ 2219 EXTERN time_t SafeAlias; /* interval to wait until @:@ in alias file */ 2220 EXTERN time_t ServiceCacheMaxAge; /* refresh interval for cache */ 2221 EXTERN size_t XscriptFileBufferSize; /* size of buf for in-core transcript file */ 2222 EXTERN MODE_T OldUmask; /* umask when sendmail starts up */ 2223 EXTERN long MaxMessageSize; /* advertised max size we will accept */ 2224 EXTERN long MinBlocksFree; /* min # of blocks free on queue fs */ 2225 EXTERN long QueueFactor; /* slope of queue function */ 2226 EXTERN long WkClassFact; /* multiplier for message class -> priority */ 2227 EXTERN long WkRecipFact; /* multiplier for # of recipients -> priority */ 2228 EXTERN long WkTimeFact; /* priority offset each time this job is run */ 2229 EXTERN char *ControlSocketName; /* control socket filename [control.c] */ 2230 EXTERN char *CurHostName; /* current host we are dealing with */ 2231 EXTERN char *DeadLetterDrop; /* path to dead letter office */ 2232 EXTERN char *DefUser; /* default user to run as (from DefUid) */ 2233 EXTERN char *DefaultCharSet; /* default character set for MIME */ 2234 EXTERN char *DoubleBounceAddr; /* where to send double bounces */ 2235 EXTERN char *ErrMsgFile; /* file to prepend to all error messages */ 2236 EXTERN char *FallBackMX; /* fall back MX host */ 2237 EXTERN char *FileName; /* name to print on error messages */ 2238 EXTERN char *ForwardPath; /* path to search for .forward files */ 2239 EXTERN char *HelpFile; /* location of SMTP help file */ 2240 EXTERN char *HostStatDir; /* location of host status information */ 2241 EXTERN char *HostsFile; /* path to /etc/hosts file */ 2242 extern char *Mbdb; /* mailbox database type */ 2243 EXTERN char *MustQuoteChars; /* quote these characters in phrases */ 2244 EXTERN char *MyHostName; /* name of this host for SMTP messages */ 2245 EXTERN char *OperatorChars; /* operators (old $o macro) */ 2246 EXTERN char *PidFile; /* location of proc id file [conf.c] */ 2247 EXTERN char *PostMasterCopy; /* address to get errs cc's */ 2248 EXTERN char *ProcTitlePrefix; /* process title prefix */ 2249 EXTERN char *RealHostName; /* name of host we are talking to */ 2250 EXTERN char *RealUserName; /* real user name of caller */ 2251 EXTERN char *volatile RestartRequest;/* a sendmail restart has been requested */ 2252 EXTERN char *RunAsUserName; /* user to become for bulk of run */ 2253 EXTERN char *SafeFileEnv; /* chroot location for file delivery */ 2254 EXTERN char *ServiceSwitchFile; /* backup service switch */ 2255 EXTERN char *volatile ShutdownRequest;/* a sendmail shutdown has been requested */ 2256 EXTERN char *SmtpGreeting; /* SMTP greeting message (old $e macro) */ 2257 EXTERN char *SmtpPhase; /* current phase in SMTP processing */ 2258 EXTERN char SmtpError[MAXLINE]; /* save failure error messages */ 2259 EXTERN char *StatFile; /* location of statistics summary */ 2260 EXTERN char *TimeZoneSpec; /* override time zone specification */ 2261 EXTERN char *UdbSpec; /* user database source spec */ 2262 EXTERN char *UnixFromLine; /* UNIX From_ line (old $l macro) */ 2263 EXTERN char **ExternalEnviron; /* saved user (input) environment */ 2264 EXTERN char **SaveArgv; /* argument vector for re-execing */ 2265 EXTERN BITMAP256 DontBlameSendmail; /* DontBlameSendmail bits */ 2266 EXTERN SM_FILE_T *InChannel; /* input connection */ 2267 EXTERN SM_FILE_T *OutChannel; /* output connection */ 2268 EXTERN SM_FILE_T *TrafficLogFile; /* file in which to log all traffic */ 2269 #if HESIOD 2270 EXTERN void *HesiodContext; 2271 #endif /* HESIOD */ 2272 EXTERN ENVELOPE *CurEnv; /* envelope currently being processed */ 2273 EXTERN char *RuleSetNames[MAXRWSETS]; /* ruleset number to name */ 2274 EXTERN char *UserEnviron[MAXUSERENVIRON + 1]; 2275 EXTERN struct rewrite *RewriteRules[MAXRWSETS]; 2276 EXTERN struct termescape TermEscape; /* terminal escape codes */ 2277 EXTERN SOCKADDR ConnectOnlyTo; /* override connection address (for testing) */ 2278 EXTERN SOCKADDR RealHostAddr; /* address of host we are talking to */ 2279 extern const SM_EXC_TYPE_T EtypeQuickAbort; /* type of a QuickAbort exception */ 2280 2281 2282 2283 /* 2284 ** Declarations of useful functions 2285 */ 2286 2287 /* Transcript file */ 2288 extern void closexscript __P((ENVELOPE *)); 2289 extern void openxscript __P((ENVELOPE *)); 2290 2291 /* error related */ 2292 extern void buffer_errors __P((void)); 2293 extern void flush_errors __P((bool)); 2294 extern void PRINTFLIKE(1, 2) message __P((const char *, ...)); 2295 extern void PRINTFLIKE(1, 2) nmessage __P((const char *, ...)); 2296 extern void PRINTFLIKE(1, 2) syserr __P((const char *, ...)); 2297 extern void PRINTFLIKE(2, 3) usrerrenh __P((char *, const char *, ...)); 2298 extern void PRINTFLIKE(1, 2) usrerr __P((const char *, ...)); 2299 extern int isenhsc __P((const char *, int)); 2300 extern int extenhsc __P((const char *, int, char *)); 2301 2302 /* alias file */ 2303 extern void alias __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 2304 extern bool aliaswait __P((MAP *, char *, bool)); 2305 extern void forward __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 2306 extern void readaliases __P((MAP *, SM_FILE_T *, bool, bool)); 2307 extern bool rebuildaliases __P((MAP *, bool)); 2308 extern void setalias __P((char *)); 2309 2310 /* logging */ 2311 extern void logdelivery __P((MAILER *, MCI *, char *, const char *, ADDRESS *, time_t, ENVELOPE *)); 2312 extern void logsender __P((ENVELOPE *, char *)); 2313 extern void PRINTFLIKE(3, 4) sm_syslog __P((int, const char *, const char *, ...)); 2314 2315 /* SMTP */ 2316 extern void giveresponse __P((int, char *, MAILER *, MCI *, ADDRESS *, time_t, ENVELOPE *, ADDRESS *)); 2317 extern int reply __P((MAILER *, MCI *, ENVELOPE *, time_t, void (*)(), char **)); 2318 extern void smtp __P((char *volatile, BITMAP256, ENVELOPE *volatile)); 2319 #if SASL 2320 extern int smtpauth __P((MAILER *, MCI *, ENVELOPE *)); 2321 #endif /* SASL */ 2322 extern int smtpdata __P((MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t)); 2323 extern int smtpgetstat __P((MAILER *, MCI *, ENVELOPE *)); 2324 extern int smtpmailfrom __P((MAILER *, MCI *, ENVELOPE *)); 2325 extern void smtpmessage __P((char *, MAILER *, MCI *, ...)); 2326 extern void smtpinit __P((MAILER *, MCI *, ENVELOPE *, bool)); 2327 extern char *smtptodsn __P((int)); 2328 extern int smtpprobe __P((MCI *)); 2329 extern void smtpquit __P((MAILER *, MCI *, ENVELOPE *)); 2330 extern int smtprcpt __P((ADDRESS *, MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t)); 2331 extern void smtprset __P((MAILER *, MCI *, ENVELOPE *)); 2332 2333 #define ISSMTPCODE(c) (isascii(c[0]) && isdigit(c[0]) && \ 2334 isascii(c[1]) && isdigit(c[1]) && \ 2335 isascii(c[2]) && isdigit(c[2])) 2336 #define ISSMTPREPLY(c) (ISSMTPCODE(c) && \ 2337 (c[3] == ' ' || c[3] == '-' || c[3] == '\0')) 2338 2339 /* delivery */ 2340 extern pid_t dowork __P((int, int, char *, bool, bool, ENVELOPE *)); 2341 extern pid_t doworklist __P((ENVELOPE *, bool, bool)); 2342 extern int endmailer __P((MCI *, ENVELOPE *, char **)); 2343 extern int mailfile __P((char *volatile, MAILER *volatile, ADDRESS *, volatile long, ENVELOPE *)); 2344 extern void sendall __P((ENVELOPE *, int)); 2345 2346 /* stats */ 2347 #define STATS_NORMAL 'n' 2348 #if _FFR_QUARANTINE 2349 # define STATS_QUARANTINE 'q' 2350 #endif /* _FFR_QUARANTINE */ 2351 #define STATS_REJECT 'r' 2352 #define STATS_CONNECT 'c' 2353 2354 extern void markstats __P((ENVELOPE *, ADDRESS *, int)); 2355 extern void clearstats __P((void)); 2356 extern void poststats __P((char *)); 2357 2358 /* control socket */ 2359 extern void closecontrolsocket __P((bool)); 2360 extern void clrcontrol __P((void)); 2361 extern void control_command __P((int, ENVELOPE *)); 2362 extern int opencontrolsocket __P((void)); 2363 2364 #if MILTER 2365 /* milter functions */ 2366 extern void milter_config __P((char *, struct milter **, int)); 2367 extern void milter_setup __P((char *)); 2368 extern void milter_set_option __P((char *, char *, bool)); 2369 extern bool milter_can_delrcpts __P((void)); 2370 extern bool milter_init __P((ENVELOPE *, char *)); 2371 extern void milter_quit __P((ENVELOPE *)); 2372 extern void milter_abort __P((ENVELOPE *)); 2373 extern char *milter_connect __P((char *, SOCKADDR, ENVELOPE *, char *)); 2374 extern char *milter_helo __P((char *, ENVELOPE *, char *)); 2375 extern char *milter_envfrom __P((char **, ENVELOPE *, char *)); 2376 extern char *milter_envrcpt __P((char **, ENVELOPE *, char *)); 2377 extern char *milter_data __P((ENVELOPE *, char *)); 2378 #endif /* MILTER */ 2379 2380 extern char *addquotes __P((char *, SM_RPOOL_T *)); 2381 extern char *arpadate __P((char *)); 2382 extern bool atobool __P((char *)); 2383 extern int atooct __P((char *)); 2384 extern void auth_warning __P((ENVELOPE *, const char *, ...)); 2385 extern int blocksignal __P((int)); 2386 extern bool bitintersect __P((BITMAP256, BITMAP256)); 2387 extern bool bitzerop __P((BITMAP256)); 2388 extern int check_bodytype __P((char *)); 2389 extern void buildfname __P((char *, char *, char *, int)); 2390 extern bool chkclientmodifiers __P((int)); 2391 extern bool chkdaemonmodifiers __P((int)); 2392 extern int checkcompat __P((ADDRESS *, ENVELOPE *)); 2393 #ifdef XDEBUG 2394 extern void checkfd012 __P((char *)); 2395 extern void checkfdopen __P((int, char *)); 2396 #endif /* XDEBUG */ 2397 extern void checkfds __P((char *)); 2398 extern bool chownsafe __P((int, bool)); 2399 extern void cleanstrcpy __P((char *, char *, int)); 2400 #if SM_CONF_SHM 2401 extern void cleanup_shm __P((bool)); 2402 #endif /* SM_CONF_SHM */ 2403 extern void clrdaemon __P((void)); 2404 extern void collect __P((SM_FILE_T *, bool, HDR **, ENVELOPE *)); 2405 extern time_t convtime __P((char *, int)); 2406 extern char **copyplist __P((char **, bool, SM_RPOOL_T *)); 2407 extern void copy_class __P((int, int)); 2408 extern time_t curtime __P((void)); 2409 extern char *defcharset __P((ENVELOPE *)); 2410 extern char *denlstring __P((char *, bool, bool)); 2411 extern void disconnect __P((int, ENVELOPE *)); 2412 #if _FFR_CONTROL_MSTAT 2413 extern void disk_status __P((SM_FILE_T *, char *)); 2414 #endif /* _FFR_CONTROL_MSTAT */ 2415 extern bool dns_getcanonname __P((char *, int, bool, int *, int *)); 2416 extern pid_t dofork __P((void)); 2417 extern int drop_privileges __P((bool)); 2418 extern int dsntoexitstat __P((char *)); 2419 extern void dumpfd __P((int, bool, bool)); 2420 extern void dumpstate __P((char *)); 2421 extern bool enoughdiskspace __P((long, ENVELOPE *)); 2422 extern char *exitstat __P((char *)); 2423 extern void fatal_error __P((SM_EXC_T *)); 2424 extern char *fgetfolded __P((char *, int, SM_FILE_T *)); 2425 extern void fill_fd __P((int, char *)); 2426 extern char *find_character __P((char *, int)); 2427 extern int finduser __P((char *, bool *, SM_MBDB_T *)); 2428 extern void finis __P((bool, bool, volatile int)); 2429 extern void fixcrlf __P((char *, bool)); 2430 extern long freediskspace __P((char *, long *)); 2431 #if NETINET6 && NEEDSGETIPNODE 2432 extern void freehostent __P((struct hostent *)); 2433 #endif /* NETINET6 && NEEDSGETIPNODE */ 2434 extern char *get_column __P((char *, int, int, char *, int)); 2435 extern char *getauthinfo __P((int, bool *)); 2436 extern int getdtsize __P((void)); 2437 extern int getla __P((void)); 2438 extern char *getmodifiers __P((char *, BITMAP256)); 2439 extern BITMAP256 *getrequests __P((ENVELOPE *)); 2440 extern char *getvendor __P((int)); 2441 extern void help __P((char *, ENVELOPE *)); 2442 extern void init_md __P((int, char **)); 2443 extern void initdaemon __P((void)); 2444 extern void inithostmaps __P((void)); 2445 extern void initmacros __P((ENVELOPE *)); 2446 extern void initsetproctitle __P((int, char **, char **)); 2447 extern void init_vendor_macros __P((ENVELOPE *)); 2448 extern SIGFUNC_DECL intsig __P((int)); 2449 extern bool isloopback __P((SOCKADDR sa)); 2450 extern void load_if_names __P((void)); 2451 extern bool lockfile __P((int, char *, char *, int)); 2452 extern void log_sendmail_pid __P((ENVELOPE *)); 2453 extern void logundelrcpts __P((ENVELOPE *, char *, int, bool)); 2454 extern char lower __P((int)); 2455 extern void makelower __P((char *)); 2456 extern int makeconnection_ds __P((char *, MCI *)); 2457 extern int makeconnection __P((char *, volatile unsigned int, MCI *, ENVELOPE *, time_t)); 2458 extern void makeworkgroups __P((void)); 2459 extern void mark_work_group_restart __P((int, int)); 2460 extern char * munchstring __P((char *, char **, int)); 2461 extern struct hostent *myhostname __P((char *, int)); 2462 extern char *nisplus_default_domain __P((void)); /* extern for Sun */ 2463 extern bool path_is_dir __P((char *, bool)); 2464 extern int pickqdir __P((QUEUEGRP *qg, long fsize, ENVELOPE *e)); 2465 extern char *pintvl __P((time_t, bool)); 2466 extern void printav __P((char **)); 2467 extern void printmailer __P((MAILER *)); 2468 extern void printnqe __P((SM_FILE_T *, char *)); 2469 extern void printopenfds __P((bool)); 2470 extern void printqueue __P((void)); 2471 extern void printrules __P((void)); 2472 extern pid_t prog_open __P((char **, int *, ENVELOPE *)); 2473 extern void putline __P((char *, MCI *)); 2474 extern void putxline __P((char *, size_t, MCI *, int)); 2475 extern void queueup_macros __P((int, SM_FILE_T *, ENVELOPE *)); 2476 extern void readcf __P((char *, bool, ENVELOPE *)); 2477 extern SIGFUNC_DECL reapchild __P((int)); 2478 extern int releasesignal __P((int)); 2479 extern void resetlimits __P((void)); 2480 extern void restart_daemon __P((void)); 2481 extern void restart_marked_work_groups __P(()); 2482 extern bool rfc822_string __P((char *)); 2483 extern bool savemail __P((ENVELOPE *, bool)); 2484 extern void seed_random __P((void)); 2485 extern void sendtoargv __P((char **, ENVELOPE *)); 2486 extern void setclientoptions __P((char *)); 2487 extern bool setdaemonoptions __P((char *)); 2488 extern void setdefaults __P((ENVELOPE *)); 2489 extern void setdefuser __P((void)); 2490 extern bool setvendor __P((char *)); 2491 extern void set_op_mode __P((int)); 2492 extern void setoption __P((int, char *, bool, bool, ENVELOPE *)); 2493 extern sigfunc_t setsignal __P((int, sigfunc_t)); 2494 extern void setuserenv __P((const char *, const char *)); 2495 extern void settime __P((ENVELOPE *)); 2496 extern char *sfgets __P((char *, int, SM_FILE_T *, time_t, char *)); 2497 extern char *shortenstring __P((const char *, size_t)); 2498 extern char *shorten_hostname __P((char [])); 2499 extern bool shorten_rfc822_string __P((char *, size_t)); 2500 extern void shutdown_daemon __P((void)); 2501 extern struct hostent *sm_gethostbyname __P((char *, int)); 2502 extern struct hostent *sm_gethostbyaddr __P((char *, int, int)); 2503 extern void sm_getla __P((void)); 2504 extern struct passwd *sm_getpwnam __P((char *)); 2505 extern struct passwd *sm_getpwuid __P((UID_T)); 2506 extern void sm_setproctitle __P((bool, ENVELOPE *, const char *, ...)); 2507 extern pid_t sm_wait __P((int *)); 2508 extern bool split_by_recipient __P((ENVELOPE *e)); 2509 extern void stop_sendmail __P((void)); 2510 extern char *str2prt __P((char *)); 2511 extern bool strreplnonprt __P((char *, int)); 2512 extern bool strcontainedin __P((bool, char *, char *)); 2513 extern int switch_map_find __P((char *, char *[], short [])); 2514 extern bool transienterror __P((int)); 2515 #if _FFR_BESTMX_BETTER_TRUNCATION || _FFR_DNSMAP_MULTI 2516 extern void truncate_at_delim __P((char *, size_t, int)); 2517 #endif /* _FFR_BESTMX_BETTER_TRUNCATION || _FFR_DNSMAP_MULTI */ 2518 extern void tTflag __P((char *)); 2519 extern void tTsetup __P((unsigned char *, unsigned int, char *)); 2520 extern SIGFUNC_DECL tick __P((int)); 2521 extern char *ttypath __P((void)); 2522 extern void unlockqueue __P((ENVELOPE *)); 2523 #if !HASUNSETENV 2524 extern void unsetenv __P((char *)); 2525 #endif /* !HASUNSETENV */ 2526 2527 /* update file system information: +/- some blocks */ 2528 #if SM_CONF_SHM 2529 extern void upd_qs __P((ENVELOPE *, bool, bool)); 2530 # define updfs(e, delete, avail) upd_qs(e, delete, avail) 2531 #else /* SM_CONF_SHM */ 2532 # define updfs(e, delete, avail) 2533 #endif /* SM_CONF_SHM */ 2534 2535 extern char *username __P((void)); 2536 extern bool usershellok __P((char *, char *)); 2537 extern void vendor_post_defaults __P((ENVELOPE *)); 2538 extern void vendor_pre_defaults __P((ENVELOPE *)); 2539 extern int waitfor __P((pid_t)); 2540 extern bool writable __P((char *, ADDRESS *, long)); 2541 #if SM_HEAP_CHECK 2542 # define xalloc(size) xalloc_tagged(size, __FILE__, __LINE__) 2543 extern char *xalloc_tagged __P((int, char*, int)); 2544 #else /* SM_HEAP_CHECK */ 2545 extern char *xalloc __P((int)); 2546 #endif /* SM_HEAP_CHECK */ 2547 extern void xputs __P((const char *)); 2548 extern char *xtextify __P((char *, char *)); 2549 extern bool xtextok __P((char *)); 2550 extern int xunlink __P((char *)); 2551 extern char *xuntextify __P((char *)); 2552 2553 2554 #endif /* ! _SENDMAIL_H */ 2555