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 8.919.2.1 2002/06/21 20:25:22 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 */ 296 297 /* address state testing primitives */ 298 #define QS_IS_OK(s) ((s) == QS_OK) 299 #define QS_IS_SENT(s) ((s) == QS_SENT) 300 #define QS_IS_BADADDR(s) ((s) == QS_BADADDR) 301 #define QS_IS_QUEUEUP(s) ((s) == QS_QUEUEUP) 302 #define QS_IS_RETRY(s) ((s) == QS_RETRY) 303 #define QS_IS_VERIFIED(s) ((s) == QS_VERIFIED) 304 #define QS_IS_EXPANDED(s) ((s) == QS_EXPANDED) 305 #define QS_IS_REMOVED(s) ((s) == QS_REMOVED) 306 #define QS_IS_UNDELIVERED(s) ((s) == QS_OK || \ 307 (s) == QS_QUEUEUP || \ 308 (s) == QS_RETRY || \ 309 (s) == QS_VERIFIED) 310 #define QS_IS_UNMARKED(s) ((s) == QS_OK || \ 311 (s) == QS_RETRY) 312 #define QS_IS_SENDABLE(s) ((s) == QS_OK || \ 313 (s) == QS_QUEUEUP || \ 314 (s) == QS_RETRY) 315 #define QS_IS_ATTEMPTED(s) ((s) == QS_QUEUEUP || \ 316 (s) == QS_RETRY || \ 317 (s) == QS_SENT) 318 #define QS_IS_DEAD(s) ((s) >= QS_DONTSEND) 319 320 321 #define NULLADDR ((ADDRESS *) NULL) 322 323 extern ADDRESS NullAddress; /* a null (template) address [main.c] */ 324 325 /* functions */ 326 extern void cataddr __P((char **, char **, char *, int, int)); 327 extern char *crackaddr __P((char *)); 328 extern bool emptyaddr __P((ADDRESS *)); 329 extern ADDRESS *getctladdr __P((ADDRESS *)); 330 extern int include __P((char *, bool, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 331 extern bool invalidaddr __P((char *, char *, bool)); 332 extern ADDRESS *parseaddr __P((char *, ADDRESS *, int, int, char **, 333 ENVELOPE *, bool)); 334 extern char **prescan __P((char *, int, char[], int, char **, unsigned char *)); 335 extern void printaddr __P((ADDRESS *, bool)); 336 extern ADDRESS *recipient __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 337 extern char *remotename __P((char *, MAILER *, int, int *, ENVELOPE *)); 338 extern int rewrite __P((char **, int, int, ENVELOPE *, int)); 339 extern bool sameaddr __P((ADDRESS *, ADDRESS *)); 340 extern int sendtolist __P((char *, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 341 #if MILTER 342 extern int removefromlist __P((char *, ADDRESS **, ENVELOPE *)); 343 #endif /* MILTER */ 344 extern void setsender __P((char *, ENVELOPE *, char **, int, bool)); 345 346 /* macro to simplify the common call to rewrite() */ 347 #define REWRITE(pvp, rs, env) rewrite(pvp, rs, 0, env, MAXATOM) 348 349 /* 350 ** Mailer definition structure. 351 ** Every mailer known to the system is declared in this 352 ** structure. It defines the pathname of the mailer, some 353 ** flags associated with it, and the argument vector to 354 ** pass to it. The flags are defined in conf.c 355 ** 356 ** The argument vector is expanded before actual use. All 357 ** words except the first are passed through the macro 358 ** processor. 359 */ 360 361 struct mailer 362 { 363 char *m_name; /* symbolic name of this mailer */ 364 char *m_mailer; /* pathname of the mailer to use */ 365 char *m_mtatype; /* type of this MTA */ 366 char *m_addrtype; /* type for addresses */ 367 char *m_diagtype; /* type for diagnostics */ 368 BITMAP256 m_flags; /* status flags, see below */ 369 short m_mno; /* mailer number internally */ 370 short m_nice; /* niceness to run at (mostly for prog) */ 371 char **m_argv; /* template argument vector */ 372 short m_sh_rwset; /* rewrite set: sender header addresses */ 373 short m_se_rwset; /* rewrite set: sender envelope addresses */ 374 short m_rh_rwset; /* rewrite set: recipient header addresses */ 375 short m_re_rwset; /* rewrite set: recipient envelope addresses */ 376 char *m_eol; /* end of line string */ 377 long m_maxsize; /* size limit on message to this mailer */ 378 int m_linelimit; /* max # characters per line */ 379 int m_maxdeliveries; /* max deliveries per mailer connection */ 380 char *m_execdir; /* directory to chdir to before execv */ 381 char *m_rootdir; /* directory to chroot to before execv */ 382 uid_t m_uid; /* UID to run as */ 383 gid_t m_gid; /* GID to run as */ 384 char *m_defcharset; /* default character set */ 385 time_t m_wait; /* timeout to wait for end */ 386 int m_maxrcpt; /* max recipients per envelope client-side */ 387 short m_qgrp; /* queue group for this mailer */ 388 }; 389 390 /* bits for m_flags */ 391 #define M_ESMTP 'a' /* run Extended SMTP */ 392 #define M_ALIASABLE 'A' /* user can be LHS of an alias */ 393 #define M_BLANKEND 'b' /* ensure blank line at end of message */ 394 #define M_NOCOMMENT 'c' /* don't include comment part of address */ 395 #define M_CANONICAL 'C' /* make addresses canonical "u@dom" */ 396 #define M_NOBRACKET 'd' /* never angle bracket envelope route-addrs */ 397 /* 'D' CF: include Date: */ 398 #define M_EXPENSIVE 'e' /* it costs to use this mailer.... */ 399 #define M_ESCFROM 'E' /* escape From lines to >From */ 400 #define M_FOPT 'f' /* mailer takes picky -f flag */ 401 /* 'F' CF: include From: or Resent-From: */ 402 #define M_NO_NULL_FROM 'g' /* sender of errors should be $g */ 403 #define M_HST_UPPER 'h' /* preserve host case distinction */ 404 #define M_PREHEAD 'H' /* MAIL11V3: preview headers */ 405 #define M_UDBENVELOPE 'i' /* do udbsender rewriting on envelope */ 406 #define M_INTERNAL 'I' /* SMTP to another sendmail site */ 407 #define M_UDBRECIPIENT 'j' /* do udbsender rewriting on recipient lines */ 408 #define M_NOLOOPCHECK 'k' /* don't check for loops in HELO command */ 409 #define M_CHUNKING 'K' /* CHUNKING: reserved for future use */ 410 #define M_LOCALMAILER 'l' /* delivery is to this host */ 411 #define M_LIMITS 'L' /* must enforce SMTP line limits */ 412 #define M_MUSER 'm' /* can handle multiple users at once */ 413 /* 'M' CF: include Message-Id: */ 414 #define M_NHDR 'n' /* don't insert From line */ 415 #define M_MANYSTATUS 'N' /* MAIL11V3: DATA returns multi-status */ 416 #define M_RUNASRCPT 'o' /* always run mailer as recipient */ 417 #define M_FROMPATH 'p' /* use reverse-path in MAIL FROM: */ 418 /* 'P' CF: include Return-Path: */ 419 #define M_VRFY250 'q' /* VRFY command returns 250 instead of 252 */ 420 #define M_ROPT 'r' /* mailer takes picky -r flag */ 421 #define M_SECURE_PORT 'R' /* try to send on a reserved TCP port */ 422 #define M_STRIPQ 's' /* strip quote chars from user/host */ 423 #define M_SPECIFIC_UID 'S' /* run as specific uid/gid */ 424 #define M_USR_UPPER 'u' /* preserve user case distinction */ 425 #define M_UGLYUUCP 'U' /* this wants an ugly UUCP from line */ 426 #define M_CONTENT_LEN 'v' /* add Content-Length: header (SVr4) */ 427 /* 'V' UIUC: !-relativize all addresses */ 428 #define M_HASPWENT 'w' /* check for /etc/passwd entry */ 429 /* 'x' CF: include Full-Name: */ 430 #define M_XDOT 'X' /* use hidden-dot algorithm */ 431 #define M_LMTP 'z' /* run Local Mail Transport Protocol */ 432 #define M_DIALDELAY 'Z' /* apply dial delay sleeptime */ 433 #define M_NOMX '0' /* turn off MX lookups */ 434 #define M_NONULLS '1' /* don't send null bytes */ 435 #define M_FSMTP '2' /* force SMTP (no ESMTP even if offered) */ 436 #define M_EBCDIC '3' /* extend Q-P encoding for EBCDIC */ 437 #define M_TRYRULESET5 '5' /* use ruleset 5 after local aliasing */ 438 #define M_7BITHDRS '6' /* strip headers to 7 bits even in 8 bit path */ 439 #define M_7BITS '7' /* use 7-bit path */ 440 #define M_8BITS '8' /* force "just send 8" behaviour */ 441 #define M_MAKE8BIT '9' /* convert 7 -> 8 bit if appropriate */ 442 #define M_CHECKINCLUDE ':' /* check for :include: files */ 443 #define M_CHECKPROG '|' /* check for |program addresses */ 444 #define M_CHECKFILE '/' /* check for /file addresses */ 445 #define M_CHECKUDB '@' /* user can be user database key */ 446 #define M_CHECKHDIR '~' /* SGI: check for valid home directory */ 447 #define M_HOLD '%' /* Hold delivery until ETRN/-qI/-qR/-qS */ 448 #define M_PLUS '+' /* Reserved: Used in mc for adding new flags */ 449 #define M_MINUS '-' /* Reserved: Used in mc for removing flags */ 450 451 /* functions */ 452 extern void initerrmailers __P((void)); 453 extern void makemailer __P((char *)); 454 extern void makequeue __P((char *, bool)); 455 extern void runqueueevent __P((void)); 456 #if _FFR_QUEUE_RUN_PARANOIA 457 extern bool checkqueuerunner __P((void)); 458 #endif /* _FFR_QUEUE_RUN_PARANOIA */ 459 460 EXTERN MAILER *FileMailer; /* ptr to *file* mailer */ 461 EXTERN MAILER *InclMailer; /* ptr to *include* mailer */ 462 EXTERN MAILER *LocalMailer; /* ptr to local mailer */ 463 EXTERN MAILER *ProgMailer; /* ptr to program mailer */ 464 EXTERN MAILER *Mailer[MAXMAILERS + 1]; 465 466 /* 467 ** Queue group definition structure. 468 ** Every queue group known to the system is declared in this structure. 469 ** It defines the basic pathname of the queue group, some flags 470 ** associated with it, and the argument vector to pass to it. 471 */ 472 473 struct qpaths_s 474 { 475 char *qp_name; /* name of queue dir, relative path */ 476 short qp_subdirs; /* use subdirs? */ 477 short qp_fsysidx; /* file system index of this directory */ 478 # if SM_CONF_SHM 479 int qp_idx; /* index into array for queue information */ 480 # endif /* SM_CONF_SHM */ 481 }; 482 483 typedef struct qpaths_s QPATHS; 484 485 struct queuegrp 486 { 487 char *qg_name; /* symbolic name of this queue group */ 488 489 /* 490 ** For now this is the same across all queue groups. 491 ** Otherwise we have to play around with chdir(). 492 */ 493 494 char *qg_qdir; /* common component of queue directory */ 495 short qg_index; /* queue number internally, index in Queue[] */ 496 int qg_maxqrun; /* max # of jobs in 1 queuerun */ 497 int qg_numqueues; /* number of queues in this queue */ 498 499 /* 500 ** qg_queueintvl == 0 denotes that no individual value is used. 501 ** Whatever accesses this must deal with "<= 0" as 502 ** "not set, use appropriate default". 503 */ 504 505 time_t qg_queueintvl; /* interval for queue runs */ 506 QPATHS *qg_qpaths; /* list of queue directories */ 507 BITMAP256 qg_flags; /* status flags, see below */ 508 short qg_nice; /* niceness for queue run */ 509 int qg_wgrp; /* Assigned to this work group */ 510 int qg_maxlist; /* max items in work queue for this group */ 511 int qg_curnum; /* current number of queue for queue runs */ 512 int qg_maxrcpt; /* max recipients per envelope, 0==no limit */ 513 514 time_t qg_nextrun; /* time for next queue runs */ 515 #if _FFR_QUEUE_GROUP_SORTORDER 516 short qg_sortorder; /* how do we sort this queuerun */ 517 #endif /* _FFR_QUEUE_GROUP_SORTORDER */ 518 #if 0 519 long qg_wkrcptfact; /* multiplier for # recipients -> priority */ 520 long qg_qfactor; /* slope of queue function */ 521 bool qg_doqueuerun; /* XXX flag is it time to do a queuerun */ 522 #endif /* 0 */ 523 }; 524 525 /* bits for qg_flags (XXX: unused as of now) */ 526 #define QD_DEFINED ((char) 1) /* queue group has been defined */ 527 #define QD_FORK 'f' /* fork queue runs */ 528 529 extern void filesys_update __P((void)); 530 #if _FFR_ANY_FREE_FS 531 extern bool filesys_free __P((long)); 532 #endif /* _FFR_ANY_FREE_FS */ 533 534 #if SASL 535 /* 536 ** SASL 537 */ 538 539 /* lines in authinfo file or index into SASL_AI_T */ 540 # define SASL_WRONG (-1) 541 # define SASL_USER 0 /* authorization id (user) */ 542 # define SASL_AUTHID 1 /* authentication id */ 543 # define SASL_PASSWORD 2 /* password fuer authid */ 544 # define SASL_DEFREALM 3 /* realm to use */ 545 # define SASL_MECHLIST 4 /* list of mechanisms to try */ 546 # define SASL_ID_REALM 5 /* authid@defrealm */ 547 548 /* 549 ** Current mechanism; this is just used to convey information between 550 ** invocation of SASL callback functions. 551 ** It must be last in the list, because it's not allocated by us 552 ** and hence we don't free() it. 553 */ 554 # define SASL_MECH 6 555 # define SASL_ENTRIES 7 /* number of entries in array */ 556 557 # define SASL_USER_BIT (1 << SASL_USER) 558 # define SASL_AUTHID_BIT (1 << SASL_AUTHID) 559 # define SASL_PASSWORD_BIT (1 << SASL_PASSWORD) 560 # define SASL_DEFREALM_BIT (1 << SASL_DEFREALM) 561 # define SASL_MECHLIST_BIT (1 << SASL_MECHLIST) 562 563 /* authenticated? */ 564 # define SASL_NOT_AUTH 0 /* not authenticated */ 565 # define SASL_PROC_AUTH 1 /* in process of authenticating */ 566 # define SASL_IS_AUTH 2 /* authenticated */ 567 568 /* SASL options */ 569 # define SASL_AUTH_AUTH 0x1000 /* use auth= only if authenticated */ 570 # if SASL >= 20101 571 # define SASL_SEC_MASK SASL_SEC_MAXIMUM /* mask for SASL_SEC_* values: sasl.h */ 572 # else /* SASL >= 20101 */ 573 # define SASL_SEC_MASK 0x0fff /* mask for SASL_SEC_* values: sasl.h */ 574 # if (SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 || \ 575 (SASL_SEC_NOACTIVE & SASL_SEC_MASK) == 0 || \ 576 (SASL_SEC_NODICTIONARY & SASL_SEC_MASK) == 0 || \ 577 (SASL_SEC_FORWARD_SECRECY & SASL_SEC_MASK) == 0 || \ 578 (SASL_SEC_NOANONYMOUS & SASL_SEC_MASK) == 0 || \ 579 (SASL_SEC_PASS_CREDENTIALS & SASL_SEC_MASK) == 0 580 ERROR: change SASL_SEC_MASK_ notify sendmail.org! 581 # endif /* SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 ... */ 582 # endif /* SASL >= 20101 */ 583 # define MAXOUTLEN 1024 /* length of output buffer */ 584 585 /* functions */ 586 extern char *intersect __P((char *, char *, SM_RPOOL_T *)); 587 extern char *iteminlist __P((char *, char *, char *)); 588 # if SASL >= 20000 589 extern int proxy_policy __P((sasl_conn_t *, void *, const char *, unsigned, const char *, unsigned, const char *, unsigned, struct propctx *)); 590 extern int safesaslfile __P((void *, const char *, sasl_verify_type_t)); 591 # else /* SASL >= 20000 */ 592 extern int proxy_policy __P((void *, const char *, const char *, const char **, const char **)); 593 # if SASL > 10515 594 extern int safesaslfile __P((void *, char *, int)); 595 # else /* SASL > 10515 */ 596 extern int safesaslfile __P((void *, char *)); 597 # endif /* SASL > 10515 */ 598 # endif /* SASL >= 20000 */ 599 extern void stop_sasl_client __P((void)); 600 601 /* structure to store authinfo */ 602 typedef char *SASL_AI_T[SASL_ENTRIES]; 603 604 EXTERN char *AuthMechanisms; /* AUTH mechanisms */ 605 EXTERN char *SASLInfo; /* file with AUTH info */ 606 EXTERN int SASLOpts; /* options for SASL */ 607 EXTERN int MaxSLBits; /* max. encryption bits for SASL */ 608 #endif /* SASL */ 609 610 /* 611 ** Structure to store macros. 612 */ 613 typedef struct 614 { 615 SM_RPOOL_T *mac_rpool; /* resource pool */ 616 BITMAP256 mac_allocated; /* storage has been alloc()? */ 617 char *mac_table[MAXMACROID + 1]; /* macros */ 618 } MACROS_T; 619 620 EXTERN MACROS_T GlobalMacros; 621 622 /* 623 ** Information about currently open connections to mailers, or to 624 ** hosts that we have looked up recently. 625 */ 626 627 #define MCI struct mailer_con_info 628 629 MCI 630 { 631 unsigned long mci_flags; /* flag bits, see below */ 632 short mci_errno; /* error number on last connection */ 633 short mci_herrno; /* h_errno from last DNS lookup */ 634 short mci_exitstat; /* exit status from last connection */ 635 short mci_state; /* SMTP state */ 636 int mci_deliveries; /* delivery attempts for connection */ 637 long mci_maxsize; /* max size this server will accept */ 638 SM_FILE_T *mci_in; /* input side of connection */ 639 SM_FILE_T *mci_out; /* output side of connection */ 640 pid_t mci_pid; /* process id of subordinate proc */ 641 char *mci_phase; /* SMTP phase string */ 642 struct mailer *mci_mailer; /* ptr to the mailer for this conn */ 643 char *mci_host; /* host name */ 644 char *mci_status; /* DSN status to be copied to addrs */ 645 char *mci_rstatus; /* SMTP status to be copied to addrs */ 646 time_t mci_lastuse; /* last usage time */ 647 SM_FILE_T *mci_statfile; /* long term status file */ 648 char *mci_heloname; /* name to use as HELO arg */ 649 long mci_min_by; /* minimum DELIVERBY */ 650 bool mci_retryrcpt; /* tempfail for at least one rcpt */ 651 char *mci_tolist; /* list of valid recipients */ 652 SM_RPOOL_T *mci_rpool; /* resource pool */ 653 #if PIPELINING 654 int mci_okrcpts; /* number of valid recipients */ 655 ADDRESS *mci_nextaddr; /* next address for pipelined status */ 656 #endif /* PIPELINING */ 657 #if SASL 658 SASL_AI_T mci_sai; /* authentication info */ 659 bool mci_sasl_auth; /* authenticated? */ 660 int mci_sasl_string_len; 661 char *mci_sasl_string; /* sasl reply string */ 662 char *mci_saslcap; /* SASL list of mechanisms */ 663 sasl_conn_t *mci_conn; /* SASL connection */ 664 #endif /* SASL */ 665 #if STARTTLS 666 SSL *mci_ssl; /* SSL connection */ 667 #endif /* STARTTLS */ 668 MACROS_T mci_macro; /* macro definitions */ 669 }; 670 671 672 /* flag bits */ 673 #define MCIF_VALID 0x00000001 /* this entry is valid */ 674 /* 0x00000002 unused, was MCIF_TEMP */ 675 #define MCIF_CACHED 0x00000004 /* currently in open cache */ 676 #define MCIF_ESMTP 0x00000008 /* this host speaks ESMTP */ 677 #define MCIF_EXPN 0x00000010 /* EXPN command supported */ 678 #define MCIF_SIZE 0x00000020 /* SIZE option supported */ 679 #define MCIF_8BITMIME 0x00000040 /* BODY=8BITMIME supported */ 680 #define MCIF_7BIT 0x00000080 /* strip this message to 7 bits */ 681 /* 0x00000100 unused, was MCIF_MULTSTAT: MAIL11V3: handles MULT status */ 682 #define MCIF_INHEADER 0x00000200 /* currently outputing header */ 683 #define MCIF_CVT8TO7 0x00000400 /* convert from 8 to 7 bits */ 684 #define MCIF_DSN 0x00000800 /* DSN extension supported */ 685 #define MCIF_8BITOK 0x00001000 /* OK to send 8 bit characters */ 686 #define MCIF_CVT7TO8 0x00002000 /* convert from 7 to 8 bits */ 687 #define MCIF_INMIME 0x00004000 /* currently reading MIME header */ 688 #define MCIF_AUTH 0x00008000 /* AUTH= supported */ 689 #define MCIF_AUTHACT 0x00010000 /* SASL (AUTH) active */ 690 #define MCIF_ENHSTAT 0x00020000 /* ENHANCEDSTATUSCODES supported */ 691 #define MCIF_PIPELINED 0x00040000 /* PIPELINING supported */ 692 #if STARTTLS 693 #define MCIF_TLS 0x00100000 /* STARTTLS supported */ 694 #define MCIF_TLSACT 0x00200000 /* STARTTLS active */ 695 #define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT | MCIF_TLS) 696 #else /* STARTTLS */ 697 #define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT) 698 #endif /* STARTTLS */ 699 #define MCIF_DLVR_BY 0x00400000 /* DELIVERBY */ 700 #if _FFR_IGNORE_EXT_ON_HELO 701 # define MCIF_HELO 0x00800000 /* we used HELO: ignore extensions */ 702 #endif /* _FFR_IGNORE_EXT_ON_HELO */ 703 #define MCIF_ONLY_EHLO 0x10000000 /* use only EHLO in smtpinit */ 704 705 /* states */ 706 #define MCIS_CLOSED 0 /* no traffic on this connection */ 707 #define MCIS_OPENING 1 /* sending initial protocol */ 708 #define MCIS_OPEN 2 /* open, initial protocol sent */ 709 #define MCIS_MAIL 3 /* MAIL command sent */ 710 #define MCIS_RCPT 4 /* RCPT commands being sent */ 711 #define MCIS_DATA 5 /* DATA command sent */ 712 #define MCIS_QUITING 6 /* running quit protocol */ 713 #define MCIS_SSD 7 /* service shutting down */ 714 #define MCIS_ERROR 8 /* I/O error on connection */ 715 716 /* functions */ 717 extern void mci_cache __P((MCI *)); 718 extern void mci_dump __P((MCI *, bool)); 719 extern void mci_dump_all __P((bool)); 720 extern void mci_flush __P((bool, MCI *)); 721 extern MCI *mci_get __P((char *, MAILER *)); 722 extern int mci_lock_host __P((MCI *)); 723 extern bool mci_match __P((char *, MAILER *)); 724 extern int mci_print_persistent __P((char *, char *)); 725 extern int mci_purge_persistent __P((char *, char *)); 726 extern MCI **mci_scan __P((MCI *)); 727 extern void mci_setstat __P((MCI *, int, char *, char *)); 728 extern void mci_store_persistent __P((MCI *)); 729 extern int mci_traverse_persistent __P((int (*)(), char *)); 730 extern void mci_unlock_host __P((MCI *)); 731 732 EXTERN int MaxMciCache; /* maximum entries in MCI cache */ 733 EXTERN time_t MciCacheTimeout; /* maximum idle time on connections */ 734 EXTERN time_t MciInfoTimeout; /* how long 'til we retry down hosts */ 735 736 /* 737 ** Header structure. 738 ** This structure is used internally to store header items. 739 */ 740 741 struct header 742 { 743 char *h_field; /* the name of the field */ 744 char *h_value; /* the value of that field */ 745 struct header *h_link; /* the next header */ 746 unsigned char h_macro; /* include header if macro defined */ 747 unsigned long h_flags; /* status bits, see below */ 748 BITMAP256 h_mflags; /* m_flags bits needed */ 749 }; 750 751 typedef struct header HDR; 752 753 /* 754 ** Header information structure. 755 ** Defined in conf.c, this struct declares the header fields 756 ** that have some magic meaning. 757 */ 758 759 struct hdrinfo 760 { 761 char *hi_field; /* the name of the field */ 762 unsigned long hi_flags; /* status bits, see below */ 763 char *hi_ruleset; /* validity check ruleset */ 764 }; 765 766 extern struct hdrinfo HdrInfo[]; 767 768 /* bits for h_flags and hi_flags */ 769 #define H_EOH 0x00000001 /* field terminates header */ 770 #define H_RCPT 0x00000002 /* contains recipient addresses */ 771 #define H_DEFAULT 0x00000004 /* if another value is found, drop this */ 772 #define H_RESENT 0x00000008 /* this address is a "Resent-..." address */ 773 #define H_CHECK 0x00000010 /* check h_mflags against m_flags */ 774 #define H_ACHECK 0x00000020 /* ditto, but always (not just default) */ 775 #define H_FORCE 0x00000040 /* force this field, even if default */ 776 #define H_TRACE 0x00000080 /* this field contains trace information */ 777 #define H_FROM 0x00000100 /* this is a from-type field */ 778 #define H_VALID 0x00000200 /* this field has a validated value */ 779 #define H_RECEIPTTO 0x00000400 /* field has return receipt info */ 780 #define H_ERRORSTO 0x00000800 /* field has error address info */ 781 #define H_CTE 0x00001000 /* field is a content-transfer-encoding */ 782 #define H_CTYPE 0x00002000 /* this is a content-type field */ 783 #define H_BCC 0x00004000 /* Bcc: header: strip value or delete */ 784 #define H_ENCODABLE 0x00008000 /* field can be RFC 1522 encoded */ 785 #define H_STRIPCOMM 0x00010000 /* header check: strip comments */ 786 #define H_BINDLATE 0x00020000 /* only expand macros at deliver */ 787 #define H_USER 0x00040000 /* header came from the user/SMTP */ 788 789 /* bits for chompheader() */ 790 #define CHHDR_DEF 0x0001 /* default header */ 791 #define CHHDR_CHECK 0x0002 /* call ruleset for header */ 792 #define CHHDR_USER 0x0004 /* header from user */ 793 #define CHHDR_QUEUE 0x0008 /* header from queue file */ 794 795 /* functions */ 796 extern void addheader __P((char *, char *, int, ENVELOPE *)); 797 extern unsigned long chompheader __P((char *, int, HDR **, ENVELOPE *)); 798 extern void commaize __P((HDR *, char *, bool, MCI *, ENVELOPE *)); 799 extern HDR *copyheader __P((HDR *, SM_RPOOL_T *)); 800 extern void eatheader __P((ENVELOPE *, bool, bool)); 801 extern char *hvalue __P((char *, HDR *)); 802 extern bool isheader __P((char *)); 803 extern void putfromline __P((MCI *, ENVELOPE *)); 804 extern void setupheaders __P((void)); 805 806 /* 807 ** Performance monitoring 808 */ 809 810 #define TIMERS struct sm_timers 811 812 TIMERS 813 { 814 TIMER ti_overall; /* the whole process */ 815 }; 816 817 818 #define PUSHTIMER(l, t) { if (tTd(98, l)) pushtimer(&t); } 819 #define POPTIMER(l, t) { if (tTd(98, l)) poptimer(&t); } 820 821 /* 822 ** Envelope structure. 823 ** This structure defines the message itself. There is usually 824 ** only one of these -- for the message that we originally read 825 ** and which is our primary interest -- but other envelopes can 826 ** be generated during processing. For example, error messages 827 ** will have their own envelope. 828 */ 829 830 struct envelope 831 { 832 HDR *e_header; /* head of header list */ 833 long e_msgpriority; /* adjusted priority of this message */ 834 time_t e_ctime; /* time message appeared in the queue */ 835 char *e_to; /* (list of) target person(s) */ 836 ADDRESS e_from; /* the person it is from */ 837 char *e_sender; /* e_from.q_paddr w comments stripped */ 838 char **e_fromdomain; /* the domain part of the sender */ 839 ADDRESS *e_sendqueue; /* list of message recipients */ 840 ADDRESS *e_errorqueue; /* the queue for error responses */ 841 842 /* 843 ** Overflow detection is based on < 0, so don't change this 844 ** to unsigned. We don't use unsigned and == ULONG_MAX because 845 ** some libc's don't have strtoul(), see mail_esmtp_args(). 846 */ 847 848 long e_msgsize; /* size of the message in bytes */ 849 char *e_msgid; /* message id (for logging) */ 850 unsigned long e_flags; /* flags, see below */ 851 int e_nrcpts; /* number of recipients */ 852 short e_class; /* msg class (priority, junk, etc.) */ 853 short e_hopcount; /* number of times processed */ 854 short e_nsent; /* number of sends since checkpoint */ 855 short e_sendmode; /* message send mode */ 856 short e_errormode; /* error return mode */ 857 short e_timeoutclass; /* message timeout class */ 858 void (*e_puthdr)__P((MCI *, HDR *, ENVELOPE *, int)); 859 /* function to put header of message */ 860 void (*e_putbody)__P((MCI *, ENVELOPE *, char *)); 861 /* function to put body of message */ 862 ENVELOPE *e_parent; /* the message this one encloses */ 863 ENVELOPE *e_sibling; /* the next envelope of interest */ 864 char *e_bodytype; /* type of message body */ 865 SM_FILE_T *e_dfp; /* data file */ 866 char *e_id; /* code for this entry in queue */ 867 int e_qgrp; /* queue group (index into queues) */ 868 int e_qdir; /* index into queue directories */ 869 int e_dfqgrp; /* data file queue group index */ 870 int e_dfqdir; /* data file queue directory index */ 871 int e_xfqgrp; /* queue group (index into queues) */ 872 int e_xfqdir; /* index into queue directories (xf) */ 873 SM_FILE_T *e_xfp; /* transcript file */ 874 SM_FILE_T *e_lockfp; /* the lock file for this message */ 875 char *e_message; /* error message; readonly; NULL, or 876 * static storage, or allocated from 877 * e_rpool */ 878 char *e_statmsg; /* stat msg (changes per delivery). 879 * readonly. NULL or allocated from 880 * e_rpool. */ 881 #if _FFR_QUARANTINE 882 char *e_quarmsg; /* why envelope is quarantined */ 883 char e_qfletter; /* queue file letter on disk */ 884 #endif /* _FFR_QUARANTINE */ 885 char *e_msgboundary; /* MIME-style message part boundary */ 886 char *e_origrcpt; /* original recipient (one only) */ 887 char *e_envid; /* envelope id from MAIL FROM: line */ 888 char *e_status; /* DSN status for this message */ 889 time_t e_dtime; /* time of last delivery attempt */ 890 int e_ntries; /* number of delivery attempts */ 891 dev_t e_dfdev; /* data file device (crash recovery) */ 892 ino_t e_dfino; /* data file inode (crash recovery) */ 893 MACROS_T e_macro; /* macro definitions */ 894 MCI *e_mci; /* connection info */ 895 char *e_auth_param; /* readonly; NULL or static storage or 896 * allocated from e_rpool */ 897 TIMERS e_timers; /* per job timers */ 898 #if _FFR_QUEUEDELAY 899 int e_queuealg; /* algorithm for queue delay */ 900 time_t e_queuedelay; /* current delay */ 901 #endif /* _FFR_QUEUEDELAY */ 902 long e_deliver_by; /* deliver by */ 903 int e_dlvr_flag; /* deliver by flag */ 904 SM_RPOOL_T *e_rpool; /* resource pool for this envelope */ 905 }; 906 907 /* values for e_flags */ 908 #define EF_OLDSTYLE 0x0000001L /* use spaces (not commas) in hdrs */ 909 #define EF_INQUEUE 0x0000002L /* this message is fully queued */ 910 #define EF_NO_BODY_RETN 0x0000004L /* omit message body on error */ 911 #define EF_CLRQUEUE 0x0000008L /* disk copy is no longer needed */ 912 #define EF_SENDRECEIPT 0x0000010L /* send a return receipt */ 913 #define EF_FATALERRS 0x0000020L /* fatal errors occurred */ 914 #define EF_DELETE_BCC 0x0000040L /* delete Bcc: headers entirely */ 915 #define EF_RESPONSE 0x0000080L /* this is an error or return receipt */ 916 #define EF_RESENT 0x0000100L /* this message is being forwarded */ 917 #define EF_VRFYONLY 0x0000200L /* verify only (don't expand aliases) */ 918 #define EF_WARNING 0x0000400L /* warning message has been sent */ 919 #define EF_QUEUERUN 0x0000800L /* this envelope is from queue */ 920 #define EF_GLOBALERRS 0x0001000L /* treat errors as global */ 921 #define EF_PM_NOTIFY 0x0002000L /* send return mail to postmaster */ 922 #define EF_METOO 0x0004000L /* send to me too */ 923 #define EF_LOGSENDER 0x0008000L /* need to log the sender */ 924 #define EF_NORECEIPT 0x0010000L /* suppress all return-receipts */ 925 #define EF_HAS8BIT 0x0020000L /* at least one 8-bit char in body */ 926 #define EF_NL_NOT_EOL 0x0040000L /* don't accept raw NL as EOLine */ 927 #define EF_CRLF_NOT_EOL 0x0080000L /* don't accept CR-LF as EOLine */ 928 #define EF_RET_PARAM 0x0100000L /* RCPT command had RET argument */ 929 #define EF_HAS_DF 0x0200000L /* set when data file is instantiated */ 930 #define EF_IS_MIME 0x0400000L /* really is a MIME message */ 931 #define EF_DONT_MIME 0x0800000L /* never MIME this message */ 932 #define EF_DISCARD 0x1000000L /* discard the message */ 933 #define EF_TOOBIG 0x2000000L /* message is too big */ 934 #define EF_SPLIT 0x4000000L /* envelope has been split */ 935 #define EF_UNSAFE 0x8000000L /* unsafe: read from untrusted source */ 936 937 #define DLVR_NOTIFY 0x01 938 #define DLVR_RETURN 0x02 939 #define DLVR_TRACE 0x10 940 #define IS_DLVR_NOTIFY(e) (((e)->e_dlvr_flag & DLVR_NOTIFY) != 0) 941 #define IS_DLVR_RETURN(e) (((e)->e_dlvr_flag & DLVR_RETURN) != 0) 942 #define IS_DLVR_TRACE(e) (((e)->e_dlvr_flag & DLVR_TRACE) != 0) 943 #define IS_DLVR_BY(e) ((e)->e_dlvr_flag != 0) 944 945 #define BODYTYPE_NONE (0) 946 #define BODYTYPE_7BIT (1) 947 #define BODYTYPE_8BITMIME (2) 948 #define BODYTYPE_ILLEGAL (-1) 949 #define BODYTYPE_VALID(b) ((b) == BODYTYPE_7BIT || (b) == BODYTYPE_8BITMIME) 950 951 extern ENVELOPE BlankEnvelope; 952 953 /* functions */ 954 extern void clearenvelope __P((ENVELOPE *, bool, SM_RPOOL_T *)); 955 extern void dropenvelope __P((ENVELOPE *, bool, bool)); 956 extern ENVELOPE *newenvelope __P((ENVELOPE *, ENVELOPE *, SM_RPOOL_T *)); 957 extern void printenvflags __P((ENVELOPE *)); 958 extern void putbody __P((MCI *, ENVELOPE *, char *)); 959 extern void putheader __P((MCI *, HDR *, ENVELOPE *, int)); 960 961 /* 962 ** Message priority classes. 963 ** 964 ** The message class is read directly from the Priority: header 965 ** field in the message. 966 ** 967 ** CurEnv->e_msgpriority is the number of bytes in the message plus 968 ** the creation time (so that jobs ``tend'' to be ordered correctly), 969 ** adjusted by the message class, the number of recipients, and the 970 ** amount of time the message has been sitting around. This number 971 ** is used to order the queue. Higher values mean LOWER priority. 972 ** 973 ** Each priority class point is worth WkClassFact priority points; 974 ** each recipient is worth WkRecipFact priority points. Each time 975 ** we reprocess a message the priority is adjusted by WkTimeFact. 976 ** WkTimeFact should normally decrease the priority so that jobs 977 ** that have historically failed will be run later; thanks go to 978 ** Jay Lepreau at Utah for pointing out the error in my thinking. 979 ** 980 ** The "class" is this number, unadjusted by the age or size of 981 ** this message. Classes with negative representations will have 982 ** error messages thrown away if they are not local. 983 */ 984 985 struct priority 986 { 987 char *pri_name; /* external name of priority */ 988 int pri_val; /* internal value for same */ 989 }; 990 991 EXTERN int NumPriorities; /* pointer into Priorities */ 992 EXTERN struct priority Priorities[MAXPRIORITIES]; 993 994 /* 995 ** Rewrite rules. 996 */ 997 998 struct rewrite 999 { 1000 char **r_lhs; /* pattern match */ 1001 char **r_rhs; /* substitution value */ 1002 struct rewrite *r_next;/* next in chain */ 1003 int r_line; /* rule line in sendmail.cf */ 1004 }; 1005 1006 /* 1007 ** Special characters in rewriting rules. 1008 ** These are used internally only. 1009 ** The COND* rules are actually used in macros rather than in 1010 ** rewriting rules, but are given here because they 1011 ** cannot conflict. 1012 */ 1013 1014 /* left hand side items */ 1015 #define MATCHZANY ((unsigned char)0220) /* match zero or more tokens */ 1016 #define MATCHANY ((unsigned char)0221) /* match one or more tokens */ 1017 #define MATCHONE ((unsigned char)0222) /* match exactly one token */ 1018 #define MATCHCLASS ((unsigned char)0223) /* match one token in a class */ 1019 #define MATCHNCLASS ((unsigned char)0224) /* match anything not in class */ 1020 #define MATCHREPL ((unsigned char)0225) /* replacement on RHS for above */ 1021 1022 /* right hand side items */ 1023 #define CANONNET ((unsigned char)0226) /* canonical net, next token */ 1024 #define CANONHOST ((unsigned char)0227) /* canonical host, next token */ 1025 #define CANONUSER ((unsigned char)0230) /* canonical user, next N tokens */ 1026 #define CALLSUBR ((unsigned char)0231) /* call another rewriting set */ 1027 1028 /* conditionals in macros */ 1029 #define CONDIF ((unsigned char)0232) /* conditional if-then */ 1030 #define CONDELSE ((unsigned char)0233) /* conditional else */ 1031 #define CONDFI ((unsigned char)0234) /* conditional fi */ 1032 1033 /* bracket characters for host name lookup */ 1034 #define HOSTBEGIN ((unsigned char)0235) /* hostname lookup begin */ 1035 #define HOSTEND ((unsigned char)0236) /* hostname lookup end */ 1036 1037 /* bracket characters for generalized lookup */ 1038 #define LOOKUPBEGIN ((unsigned char)0205) /* generalized lookup begin */ 1039 #define LOOKUPEND ((unsigned char)0206) /* generalized lookup end */ 1040 1041 /* macro substitution character */ 1042 #define MACROEXPAND ((unsigned char)0201) /* macro expansion */ 1043 #define MACRODEXPAND ((unsigned char)0202) /* deferred macro expansion */ 1044 1045 /* to make the code clearer */ 1046 #define MATCHZERO CANONHOST 1047 1048 #define MAXMATCH 9 /* max params per rewrite */ 1049 1050 /* external <==> internal mapping table */ 1051 struct metamac 1052 { 1053 char metaname; /* external code (after $) */ 1054 unsigned char metaval; /* internal code (as above) */ 1055 }; 1056 1057 /* values for macros with external names only */ 1058 #define MID_OPMODE 0202 /* operation mode */ 1059 1060 /* functions */ 1061 #if SM_HEAP_CHECK 1062 extern void 1063 macdefine_tagged __P(( 1064 MACROS_T *_mac, 1065 ARGCLASS_T _vclass, 1066 int _id, 1067 char *_value, 1068 char *_file, 1069 int _line, 1070 int _group)); 1071 # define macdefine(mac,c,id,v) \ 1072 macdefine_tagged(mac,c,id,v,__FILE__,__LINE__,sm_heap_group()) 1073 #else /* SM_HEAP_CHECK */ 1074 extern void 1075 macdefine __P(( 1076 MACROS_T *_mac, 1077 ARGCLASS_T _vclass, 1078 int _id, 1079 char *_value)); 1080 # define macdefine_tagged(mac,c,id,v,file,line,grp) macdefine(mac,c,id,v) 1081 #endif /* SM_HEAP_CHECK */ 1082 extern void macset __P((MACROS_T *, int, char *)); 1083 #define macget(mac, i) (mac)->mac_table[i] 1084 extern void expand __P((char *, char *, size_t, ENVELOPE *)); 1085 extern int macid_parse __P((char *, char **)); 1086 #define macid(name) macid_parse(name, NULL) 1087 extern char *macname __P((int)); 1088 extern char *macvalue __P((int, ENVELOPE *)); 1089 extern int rscheck __P((char *, char *, char *, ENVELOPE *, bool, bool, int, char *, char *)); 1090 extern int rscap __P((char *, char *, char *, ENVELOPE *, char ***, char *, int)); 1091 extern void setclass __P((int, char *)); 1092 extern int strtorwset __P((char *, char **, int)); 1093 extern void translate_dollars __P((char *)); 1094 extern bool wordinclass __P((char *, int)); 1095 1096 /* 1097 ** Name canonification short circuit. 1098 ** 1099 ** If the name server for a host is down, the process of trying to 1100 ** canonify the name can hang. This is similar to (but alas, not 1101 ** identical to) looking up the name for delivery. This stab type 1102 ** caches the result of the name server lookup so we don't hang 1103 ** multiple times. 1104 */ 1105 1106 #define NAMECANON struct _namecanon 1107 1108 NAMECANON 1109 { 1110 short nc_errno; /* cached errno */ 1111 short nc_herrno; /* cached h_errno */ 1112 short nc_stat; /* cached exit status code */ 1113 short nc_flags; /* flag bits */ 1114 char *nc_cname; /* the canonical name */ 1115 time_t nc_exp; /* entry expires at */ 1116 }; 1117 1118 /* values for nc_flags */ 1119 #define NCF_VALID 0x0001 /* entry valid */ 1120 1121 /* hostsignature structure */ 1122 1123 struct hostsig_t 1124 { 1125 char *hs_sig; /* hostsignature */ 1126 time_t hs_exp; /* entry expires at */ 1127 }; 1128 1129 typedef struct hostsig_t HOSTSIG_T; 1130 1131 /* functions */ 1132 extern bool getcanonname __P((char *, int, bool, int *)); 1133 extern int getmxrr __P((char *, char **, unsigned short *, bool, int *, bool, int *)); 1134 extern char *hostsignature __P((MAILER *, char *)); 1135 extern int getfallbackmxrr __P((char *)); 1136 1137 /* 1138 ** Mapping functions 1139 ** 1140 ** These allow arbitrary mappings in the config file. The idea 1141 ** (albeit not the implementation) comes from IDA sendmail. 1142 */ 1143 1144 #define MAPCLASS struct _mapclass 1145 #define MAP struct _map 1146 #define MAXMAPACTIONS 5 /* size of map_actions array */ 1147 1148 1149 /* 1150 ** An actual map. 1151 */ 1152 1153 MAP 1154 { 1155 MAPCLASS *map_class; /* the class of this map */ 1156 MAPCLASS *map_orgclass; /* the original class of this map */ 1157 char *map_mname; /* name of this map */ 1158 long map_mflags; /* flags, see below */ 1159 char *map_file; /* the (nominal) filename */ 1160 ARBPTR_T map_db1; /* the open database ptr */ 1161 ARBPTR_T map_db2; /* an "extra" database pointer */ 1162 char *map_keycolnm; /* key column name */ 1163 char *map_valcolnm; /* value column name */ 1164 unsigned char map_keycolno; /* key column number */ 1165 unsigned char map_valcolno; /* value column number */ 1166 char map_coldelim; /* column delimiter */ 1167 char map_spacesub; /* spacesub */ 1168 char *map_app; /* to append to successful matches */ 1169 char *map_tapp; /* to append to "tempfail" matches */ 1170 char *map_domain; /* the (nominal) NIS domain */ 1171 char *map_rebuild; /* program to run to do auto-rebuild */ 1172 time_t map_mtime; /* last database modification time */ 1173 time_t map_timeout; /* timeout for map accesses */ 1174 int map_retry; /* # of retries for map accesses */ 1175 pid_t map_pid; /* PID of process which opened map */ 1176 int map_lockfd; /* auxiliary lock file descriptor */ 1177 short map_specificity; /* specificity of aliases */ 1178 MAP *map_stack[MAXMAPSTACK]; /* list for stacked maps */ 1179 short map_return[MAXMAPACTIONS]; /* return bitmaps for stacked maps */ 1180 }; 1181 1182 1183 /* bit values for map_mflags */ 1184 #define MF_VALID 0x00000001 /* this entry is valid */ 1185 #define MF_INCLNULL 0x00000002 /* include null byte in key */ 1186 #define MF_OPTIONAL 0x00000004 /* don't complain if map not found */ 1187 #define MF_NOFOLDCASE 0x00000008 /* don't fold case in keys */ 1188 #define MF_MATCHONLY 0x00000010 /* don't use the map value */ 1189 #define MF_OPEN 0x00000020 /* this entry is open */ 1190 #define MF_WRITABLE 0x00000040 /* open for writing */ 1191 #define MF_ALIAS 0x00000080 /* this is an alias file */ 1192 #define MF_TRY0NULL 0x00000100 /* try with no null byte */ 1193 #define MF_TRY1NULL 0x00000200 /* try with the null byte */ 1194 #define MF_LOCKED 0x00000400 /* this map is currently locked */ 1195 #define MF_ALIASWAIT 0x00000800 /* alias map in aliaswait state */ 1196 #define MF_IMPL_HASH 0x00001000 /* implicit: underlying hash database */ 1197 #define MF_IMPL_NDBM 0x00002000 /* implicit: underlying NDBM database */ 1198 /* 0x00004000 */ 1199 #define MF_APPEND 0x00008000 /* append new entry on rebuild */ 1200 #define MF_KEEPQUOTES 0x00010000 /* don't dequote key before lookup */ 1201 #define MF_NODEFER 0x00020000 /* don't defer if map lookup fails */ 1202 #define MF_REGEX_NOT 0x00040000 /* regular expression negation */ 1203 #define MF_DEFER 0x00080000 /* don't lookup map in defer mode */ 1204 #define MF_SINGLEMATCH 0x00100000 /* successful only if match one key */ 1205 /* 0x00200000 available for use */ 1206 #define MF_FILECLASS 0x00400000 /* this is a file class map */ 1207 #define MF_OPENBOGUS 0x00800000 /* open failed, don't call map_close */ 1208 #define MF_CLOSING 0x01000000 /* map is being closed */ 1209 1210 #define DYNOPENMAP(map) if (!bitset(MF_OPEN, (map)->map_mflags)) \ 1211 { \ 1212 if (!openmap(map)) \ 1213 return NULL; \ 1214 } 1215 1216 1217 /* indices for map_actions */ 1218 #define MA_NOTFOUND 0 /* member map returned "not found" */ 1219 #define MA_UNAVAIL 1 /* member map is not available */ 1220 #define MA_TRYAGAIN 2 /* member map returns temp failure */ 1221 1222 /* macros to handle MapTempFail */ 1223 #define BIT_IS_MTP 0x01 /* temp.failure occurred */ 1224 #define BIT_ASK_MTP 0x02 /* do we care about MapTempFail? */ 1225 #define RESET_MAPTEMPFAIL MapTempFail = 0 1226 #define INIT_MAPTEMPFAIL MapTempFail = BIT_ASK_MTP 1227 #define SET_MAPTEMPFAIL MapTempFail |= BIT_IS_MTP 1228 #define IS_MAPTEMPFAIL bitset(BIT_IS_MTP, MapTempFail) 1229 #define ASK_MAPTEMPFAIL bitset(BIT_ASK_MTP, MapTempFail) 1230 1231 /* 1232 ** The class of a map -- essentially the functions to call 1233 */ 1234 1235 MAPCLASS 1236 { 1237 char *map_cname; /* name of this map class */ 1238 char *map_ext; /* extension for database file */ 1239 short map_cflags; /* flag bits, see below */ 1240 bool (*map_parse)__P((MAP *, char *)); 1241 /* argument parsing function */ 1242 char *(*map_lookup)__P((MAP *, char *, char **, int *)); 1243 /* lookup function */ 1244 void (*map_store)__P((MAP *, char *, char *)); 1245 /* store function */ 1246 bool (*map_open)__P((MAP *, int)); 1247 /* open function */ 1248 void (*map_close)__P((MAP *)); 1249 /* close function */ 1250 }; 1251 1252 /* bit values for map_cflags */ 1253 #define MCF_ALIASOK 0x0001 /* can be used for aliases */ 1254 #define MCF_ALIASONLY 0x0002 /* usable only for aliases */ 1255 #define MCF_REBUILDABLE 0x0004 /* can rebuild alias files */ 1256 #define MCF_OPTFILE 0x0008 /* file name is optional */ 1257 #define MCF_NOTPERSIST 0x0010 /* don't keep map open all the time */ 1258 1259 /* functions */ 1260 extern void closemaps __P((bool)); 1261 extern bool impl_map_open __P((MAP *, int)); 1262 extern void initmaps __P((void)); 1263 extern MAP *makemapentry __P((char *)); 1264 extern void maplocaluser __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1265 extern char *map_rewrite __P((MAP *, const char *, size_t, char **)); 1266 #if NETINFO 1267 extern char *ni_propval __P((char *, char *, char *, char *, int)); 1268 #endif /* NETINFO */ 1269 extern bool openmap __P((MAP *)); 1270 #if USERDB 1271 extern void _udbx_close __P((void)); 1272 extern int udbexpand __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1273 extern char *udbsender __P((char *, SM_RPOOL_T *)); 1274 #endif /* USERDB */ 1275 1276 /* 1277 ** LDAP related items 1278 */ 1279 #if LDAPMAP 1280 /* struct defining LDAP Auth Methods */ 1281 struct lamvalues 1282 { 1283 char *lam_name; /* name of LDAP auth method */ 1284 int lam_code; /* numeric code */ 1285 }; 1286 1287 /* struct defining LDAP Alias Dereferencing */ 1288 struct ladvalues 1289 { 1290 char *lad_name; /* name of LDAP alias dereferencing method */ 1291 int lad_code; /* numeric code */ 1292 }; 1293 1294 /* struct defining LDAP Search Scope */ 1295 struct lssvalues 1296 { 1297 char *lss_name; /* name of LDAP search scope */ 1298 int lss_code; /* numeric code */ 1299 }; 1300 1301 /* functions */ 1302 extern bool ldapmap_parseargs __P((MAP *, char *)); 1303 extern void ldapmap_set_defaults __P((char *)); 1304 #endif /* LDAPMAP */ 1305 1306 /* 1307 ** PH related items 1308 */ 1309 1310 #if PH_MAP 1311 1312 # include <phclient.h> 1313 1314 struct ph_map_struct 1315 { 1316 char *ph_servers; /* list of ph servers */ 1317 char *ph_field_list; /* list of fields to search for match */ 1318 PH *ph; /* PH server handle */ 1319 int ph_fastclose; /* send "quit" command on close */ 1320 time_t ph_timeout; /* timeout interval */ 1321 }; 1322 typedef struct ph_map_struct PH_MAP_STRUCT; 1323 1324 #endif /* PH_MAP */ 1325 /* 1326 ** Process List (proclist) 1327 */ 1328 1329 #define NO_PID ((pid_t) 0) 1330 #ifndef PROC_LIST_SEG 1331 # define PROC_LIST_SEG 32 /* number of pids to alloc at a time */ 1332 #endif /* ! PROC_LIST_SEG */ 1333 1334 /* process types */ 1335 #define PROC_NONE 0 1336 #define PROC_DAEMON 1 1337 #define PROC_DAEMON_CHILD 2 1338 #define PROC_QUEUE 3 1339 #define PROC_QUEUE_CHILD 3 1340 #define PROC_CONTROL 4 1341 #define PROC_CONTROL_CHILD 5 1342 1343 /* functions */ 1344 extern void proc_list_add __P((pid_t, char *, int, int, int)); 1345 extern void proc_list_clear __P((void)); 1346 extern void proc_list_display __P((SM_FILE_T *, char *)); 1347 extern void proc_list_drop __P((pid_t, int, int *)); 1348 extern void proc_list_probe __P((void)); 1349 extern void proc_list_set __P((pid_t, char *)); 1350 extern void proc_list_signal __P((int, int)); 1351 1352 /* 1353 ** Symbol table definitions 1354 */ 1355 1356 struct symtab 1357 { 1358 char *s_name; /* name to be entered */ 1359 short s_symtype; /* general type (see below) */ 1360 struct symtab *s_next; /* pointer to next in chain */ 1361 union 1362 { 1363 BITMAP256 sv_class; /* bit-map of word classes */ 1364 ADDRESS *sv_addr; /* pointer to address header */ 1365 MAILER *sv_mailer; /* pointer to mailer */ 1366 char *sv_alias; /* alias */ 1367 MAPCLASS sv_mapclass; /* mapping function class */ 1368 MAP sv_map; /* mapping function */ 1369 HOSTSIG_T sv_hostsig; /* host signature */ 1370 MCI sv_mci; /* mailer connection info */ 1371 NAMECANON sv_namecanon; /* canonical name cache */ 1372 int sv_macro; /* macro name => id mapping */ 1373 int sv_ruleset; /* ruleset index */ 1374 struct hdrinfo sv_header; /* header metainfo */ 1375 char *sv_service[MAXMAPSTACK]; /* service switch */ 1376 #if LDAPMAP 1377 MAP *sv_lmap; /* Maps for LDAP connection */ 1378 #endif /* LDAPMAP */ 1379 #if MILTER 1380 struct milter *sv_milter; /* milter filter name */ 1381 #endif /* MILTER */ 1382 QUEUEGRP *sv_queue; /* pointer to queue */ 1383 } s_value; 1384 }; 1385 1386 typedef struct symtab STAB; 1387 1388 /* symbol types */ 1389 #define ST_UNDEF 0 /* undefined type */ 1390 #define ST_CLASS 1 /* class map */ 1391 #define ST_ADDRESS 2 /* an address in parsed format */ 1392 #define ST_MAILER 3 /* a mailer header */ 1393 #define ST_ALIAS 4 /* an alias */ 1394 #define ST_MAPCLASS 5 /* mapping function class */ 1395 #define ST_MAP 6 /* mapping function */ 1396 #define ST_HOSTSIG 7 /* host signature */ 1397 #define ST_NAMECANON 8 /* cached canonical name */ 1398 #define ST_MACRO 9 /* macro name to id mapping */ 1399 #define ST_RULESET 10 /* ruleset index */ 1400 #define ST_SERVICE 11 /* service switch entry */ 1401 #define ST_HEADER 12 /* special header flags */ 1402 #if LDAPMAP 1403 # define ST_LMAP 13 /* List head of maps for LDAP connection */ 1404 #endif /* LDAPMAP */ 1405 #if MILTER 1406 # define ST_MILTER 14 /* milter filter */ 1407 #endif /* MILTER */ 1408 #define ST_QUEUE 15 /* a queue entry */ 1409 1410 /* This entry must be last */ 1411 #define ST_MCI 16 /* mailer connection info (offset) */ 1412 1413 #define s_class s_value.sv_class 1414 #define s_address s_value.sv_addr 1415 #define s_mailer s_value.sv_mailer 1416 #define s_alias s_value.sv_alias 1417 #define s_mci s_value.sv_mci 1418 #define s_mapclass s_value.sv_mapclass 1419 #define s_hostsig s_value.sv_hostsig 1420 #define s_map s_value.sv_map 1421 #define s_namecanon s_value.sv_namecanon 1422 #define s_macro s_value.sv_macro 1423 #define s_ruleset s_value.sv_ruleset 1424 #define s_service s_value.sv_service 1425 #define s_header s_value.sv_header 1426 #if LDAPMAP 1427 # define s_lmap s_value.sv_lmap 1428 #endif /* LDAPMAP */ 1429 #if MILTER 1430 # define s_milter s_value.sv_milter 1431 #endif /* MILTER */ 1432 #define s_quegrp s_value.sv_queue 1433 1434 /* opcodes to stab */ 1435 #define ST_FIND 0 /* find entry */ 1436 #define ST_ENTER 1 /* enter if not there */ 1437 1438 /* functions */ 1439 extern STAB *stab __P((char *, int, int)); 1440 extern void stabapply __P((void (*)(STAB *, int), int)); 1441 1442 /* 1443 ** Operation, send, error, and MIME modes 1444 ** 1445 ** The operation mode describes the basic operation of sendmail. 1446 ** This can be set from the command line, and is "send mail" by 1447 ** default. 1448 ** 1449 ** The send mode tells how to send mail. It can be set in the 1450 ** configuration file. Its setting determines how quickly the 1451 ** mail will be delivered versus the load on your system. If the 1452 ** -v (verbose) flag is given, it will be forced to SM_DELIVER 1453 ** mode. 1454 ** 1455 ** The error mode tells how to return errors. 1456 */ 1457 1458 #define MD_DELIVER 'm' /* be a mail sender */ 1459 #define MD_SMTP 's' /* run SMTP on standard input */ 1460 #define MD_ARPAFTP 'a' /* obsolete ARPANET mode (Grey Book) */ 1461 #define MD_DAEMON 'd' /* run as a daemon */ 1462 #define MD_FGDAEMON 'D' /* run daemon in foreground */ 1463 #define MD_VERIFY 'v' /* verify: don't collect or deliver */ 1464 #define MD_TEST 't' /* test mode: resolve addrs only */ 1465 #define MD_INITALIAS 'i' /* initialize alias database */ 1466 #define MD_PRINT 'p' /* print the queue */ 1467 #define MD_PRINTNQE 'P' /* print number of entries in queue */ 1468 #define MD_FREEZE 'z' /* freeze the configuration file */ 1469 #define MD_HOSTSTAT 'h' /* print persistent host stat info */ 1470 #define MD_PURGESTAT 'H' /* purge persistent host stat info */ 1471 #define MD_QUEUERUN 'q' /* queue run */ 1472 1473 /* Note: see also include/sendmail/pathnames.h: GET_CLIENT_CF */ 1474 1475 /* values for e_sendmode -- send modes */ 1476 #define SM_DELIVER 'i' /* interactive delivery */ 1477 #define SM_FORK 'b' /* deliver in background */ 1478 #define SM_QUEUE 'q' /* queue, don't deliver */ 1479 #define SM_DEFER 'd' /* defer map lookups as well as queue */ 1480 #define SM_VERIFY 'v' /* verify only (used internally) */ 1481 1482 #define WILL_BE_QUEUED(m) ((m) == SM_QUEUE || (m) == SM_DEFER) 1483 1484 /* used only as a parameter to sendall */ 1485 #define SM_DEFAULT '\0' /* unspecified, use SendMode */ 1486 1487 /* functions */ 1488 extern void set_delivery_mode __P((int, ENVELOPE *)); 1489 1490 /* values for e_errormode -- error handling modes */ 1491 #define EM_PRINT 'p' /* print errors */ 1492 #define EM_MAIL 'm' /* mail back errors */ 1493 #define EM_WRITE 'w' /* write back errors */ 1494 #define EM_BERKNET 'e' /* special berknet processing */ 1495 #define EM_QUIET 'q' /* don't print messages (stat only) */ 1496 1497 1498 /* bit values for MimeMode */ 1499 #define MM_CVTMIME 0x0001 /* convert 8 to 7 bit MIME */ 1500 #define MM_PASS8BIT 0x0002 /* just send 8 bit data blind */ 1501 #define MM_MIME8BIT 0x0004 /* convert 8-bit data to MIME */ 1502 1503 1504 /* how to handle messages without any recipient addresses */ 1505 #define NRA_NO_ACTION 0 /* just leave it as is */ 1506 #define NRA_ADD_TO 1 /* add To: header */ 1507 #define NRA_ADD_APPARENTLY_TO 2 /* add Apparently-To: header */ 1508 #define NRA_ADD_BCC 3 /* add empty Bcc: header */ 1509 #define NRA_ADD_TO_UNDISCLOSED 4 /* add To: undisclosed:; header */ 1510 1511 1512 /* flags to putxline */ 1513 #define PXLF_NOTHINGSPECIAL 0 /* no special mapping */ 1514 #define PXLF_MAPFROM 0x0001 /* map From_ to >From_ */ 1515 #define PXLF_STRIP8BIT 0x0002 /* strip 8th bit */ 1516 #define PXLF_HEADER 0x0004 /* map newlines in headers */ 1517 #define PXLF_NOADDEOL 0x0008 /* if EOL not present, don't add one */ 1518 1519 /* 1520 ** Privacy flags 1521 ** These are bit values for the PrivacyFlags word. 1522 */ 1523 1524 #define PRIV_PUBLIC 0 /* what have I got to hide? */ 1525 #define PRIV_NEEDMAILHELO 0x00000001 /* insist on HELO for MAIL */ 1526 #define PRIV_NEEDEXPNHELO 0x00000002 /* insist on HELO for EXPN */ 1527 #define PRIV_NEEDVRFYHELO 0x00000004 /* insist on HELO for VRFY */ 1528 #define PRIV_NOEXPN 0x00000008 /* disallow EXPN command */ 1529 #define PRIV_NOVRFY 0x00000010 /* disallow VRFY command */ 1530 #define PRIV_AUTHWARNINGS 0x00000020 /* flag possible auth probs */ 1531 #define PRIV_NOVERB 0x00000040 /* disallow VERB command */ 1532 #define PRIV_RESTRICTMAILQ 0x00010000 /* restrict mailq command */ 1533 #define PRIV_RESTRICTQRUN 0x00020000 /* restrict queue run */ 1534 #define PRIV_RESTRICTEXPAND 0x00040000 /* restrict alias/forward expansion */ 1535 #define PRIV_NOETRN 0x00080000 /* disallow ETRN command */ 1536 #define PRIV_NOBODYRETN 0x00100000 /* do not return bodies on bounces */ 1537 #define PRIV_NORECEIPTS 0x00200000 /* disallow return receipts */ 1538 1539 /* don't give no info, anyway, anyhow */ 1540 #define PRIV_GOAWAY 0x0000ffff 1541 1542 /* struct defining such things */ 1543 struct prival 1544 { 1545 char *pv_name; /* name of privacy flag */ 1546 unsigned long pv_flag; /* numeric level */ 1547 }; 1548 1549 EXTERN unsigned long PrivacyFlags; /* privacy flags */ 1550 1551 1552 /* 1553 ** Flags passed to remotename, parseaddr, allocaddr, and buildaddr. 1554 */ 1555 1556 #define RF_SENDERADDR 0x001 /* this is a sender address */ 1557 #define RF_HEADERADDR 0x002 /* this is a header address */ 1558 #define RF_CANONICAL 0x004 /* strip comment information */ 1559 #define RF_ADDDOMAIN 0x008 /* OK to do domain extension */ 1560 #define RF_COPYPARSE 0x010 /* copy parsed user & host */ 1561 #define RF_COPYPADDR 0x020 /* copy print address */ 1562 #define RF_COPYALL (RF_COPYPARSE|RF_COPYPADDR) 1563 #define RF_COPYNONE 0 1564 1565 1566 /* 1567 ** Flags passed to mime8to7 and putheader. 1568 */ 1569 1570 #define M87F_OUTER 0 /* outer context */ 1571 #define M87F_NO8BIT 0x0001 /* can't have 8-bit in this section */ 1572 #define M87F_DIGEST 0x0002 /* processing multipart/digest */ 1573 #define M87F_NO8TO7 0x0004 /* don't do 8->7 bit conversions */ 1574 1575 /* functions */ 1576 extern void mime7to8 __P((MCI *, HDR *, ENVELOPE *)); 1577 extern int mime8to7 __P((MCI *, HDR *, ENVELOPE *, char **, int)); 1578 1579 /* 1580 ** Flags passed to returntosender. 1581 */ 1582 1583 #define RTSF_NO_BODY 0 /* send headers only */ 1584 #define RTSF_SEND_BODY 0x0001 /* include body of message in return */ 1585 #define RTSF_PM_BOUNCE 0x0002 /* this is a postmaster bounce */ 1586 1587 /* functions */ 1588 extern int returntosender __P((char *, ADDRESS *, int, ENVELOPE *)); 1589 1590 /* 1591 ** Regular UNIX sockaddrs are too small to handle ISO addresses, so 1592 ** we are forced to declare a supertype here. 1593 */ 1594 1595 #if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 1596 union bigsockaddr 1597 { 1598 struct sockaddr sa; /* general version */ 1599 # if NETUNIX 1600 struct sockaddr_un sunix; /* UNIX family */ 1601 # endif /* NETUNIX */ 1602 # if NETINET 1603 struct sockaddr_in sin; /* INET family */ 1604 # endif /* NETINET */ 1605 # if NETINET6 1606 struct sockaddr_in6 sin6; /* INET/IPv6 */ 1607 # endif /* NETINET6 */ 1608 # if NETISO 1609 struct sockaddr_iso siso; /* ISO family */ 1610 # endif /* NETISO */ 1611 # if NETNS 1612 struct sockaddr_ns sns; /* XNS family */ 1613 # endif /* NETNS */ 1614 # if NETX25 1615 struct sockaddr_x25 sx25; /* X.25 family */ 1616 # endif /* NETX25 */ 1617 }; 1618 1619 # define SOCKADDR union bigsockaddr 1620 1621 /* functions */ 1622 extern char *anynet_ntoa __P((SOCKADDR *)); 1623 # if NETINET6 1624 extern char *anynet_ntop __P((struct in6_addr *, char *, size_t)); 1625 extern int anynet_pton __P((int, const char *, void *)); 1626 # endif /* NETINET6 */ 1627 extern char *hostnamebyanyaddr __P((SOCKADDR *)); 1628 extern char *validate_connection __P((SOCKADDR *, char *, ENVELOPE *)); 1629 # if SASL >= 20000 1630 extern bool iptostring __P((SOCKADDR *, SOCKADDR_LEN_T, char *, unsigned)); 1631 # endif /* SASL >= 20000 */ 1632 1633 #endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */ 1634 1635 /* 1636 ** Mail Filters (milter) 1637 */ 1638 1639 /* 1640 ** 32-bit type used by milter 1641 ** (needed by libmilter even if MILTER isn't defined) 1642 */ 1643 1644 typedef SM_INT32 mi_int32; 1645 1646 #if MILTER 1647 # define SMFTO_WRITE 0 /* Timeout for sending information */ 1648 # define SMFTO_READ 1 /* Timeout waiting for a response */ 1649 # define SMFTO_EOM 2 /* Timeout for ACK/NAK to EOM */ 1650 # define SMFTO_CONNECT 3 /* Timeout for connect() */ 1651 1652 # define SMFTO_NUM_TO 4 /* Total number of timeouts */ 1653 1654 struct milter 1655 { 1656 char *mf_name; /* filter name */ 1657 BITMAP256 mf_flags; /* MTA flags */ 1658 mi_int32 mf_fvers; /* filter version */ 1659 mi_int32 mf_fflags; /* filter flags */ 1660 mi_int32 mf_pflags; /* protocol flags */ 1661 char *mf_conn; /* connection info */ 1662 int mf_sock; /* connected socket */ 1663 char mf_state; /* state of filter */ 1664 time_t mf_timeout[SMFTO_NUM_TO]; /* timeouts */ 1665 }; 1666 1667 /* MTA flags */ 1668 # define SMF_REJECT 'R' /* Reject connection on filter fail */ 1669 # define SMF_TEMPFAIL 'T' /* tempfail connection on failure */ 1670 1671 /* states */ 1672 # define SMFS_CLOSED 'C' /* closed for all further actions */ 1673 # define SMFS_OPEN 'O' /* connected to remote milter filter */ 1674 # define SMFS_INMSG 'M' /* currently servicing a message */ 1675 # define SMFS_DONE 'D' /* done with current message */ 1676 # define SMFS_CLOSABLE 'Q' /* done with current connection */ 1677 # define SMFS_ERROR 'E' /* error state */ 1678 # define SMFS_READY 'R' /* ready for action */ 1679 1680 EXTERN struct milter *InputFilters[MAXFILTERS]; 1681 EXTERN char *InputFilterList; 1682 EXTERN int MilterLogLevel; 1683 1684 # if _FFR_MILTER_PERDAEMON 1685 /* functions */ 1686 extern void setup_daemon_milters __P(()); 1687 # endif /* _FFR_MILTER_PERDAEMON */ 1688 #endif /* MILTER */ 1689 1690 /* 1691 ** Vendor codes 1692 ** 1693 ** Vendors can customize sendmail to add special behaviour, 1694 ** generally for back compatibility. Ideally, this should 1695 ** be set up in the .cf file using the "V" command. However, 1696 ** it's quite reasonable for some vendors to want the default 1697 ** be their old version; this can be set using 1698 ** -DVENDOR_DEFAULT=VENDOR_xxx 1699 ** in the Makefile. 1700 ** 1701 ** Vendors should apply to sendmail@sendmail.org for 1702 ** unique vendor codes. 1703 */ 1704 1705 #define VENDOR_BERKELEY 1 /* Berkeley-native configuration file */ 1706 #define VENDOR_SUN 2 /* Sun-native configuration file */ 1707 #define VENDOR_HP 3 /* Hewlett-Packard specific config syntax */ 1708 #define VENDOR_IBM 4 /* IBM specific config syntax */ 1709 #define VENDOR_SENDMAIL 5 /* Sendmail, Inc. specific config syntax */ 1710 #define VENDOR_DEC 6 /* Compaq, DEC, Digital */ 1711 1712 /* prototypes for vendor-specific hook routines */ 1713 extern void vendor_daemon_setup __P((ENVELOPE *)); 1714 extern void vendor_set_uid __P((UID_T)); 1715 1716 1717 /* 1718 ** Terminal escape codes. 1719 ** 1720 ** To make debugging output clearer. 1721 */ 1722 1723 struct termescape 1724 { 1725 char *te_rv_on; /* turn reverse-video on */ 1726 char *te_rv_off; /* turn reverse-video off */ 1727 }; 1728 1729 /* 1730 ** Additional definitions 1731 */ 1732 1733 /* 1734 ** d_flags, see daemon.c 1735 ** general rule: lower case: required, upper case: No 1736 */ 1737 1738 #define D_AUTHREQ 'a' /* authentication required */ 1739 #define D_BINDIF 'b' /* use if_addr for outgoing connection */ 1740 #define D_CANONREQ 'c' /* canonification required (cf) */ 1741 #define D_IFNHELO 'h' /* use if name for HELO */ 1742 #define D_FQMAIL 'f' /* fq sender address required (cf) */ 1743 #define D_FQRCPT 'r' /* fq recipient address required (cf) */ 1744 #if _FFR_SMTP_SSL 1745 # define D_SMTPS 's' /* SMTP over SSL (smtps) */ 1746 #endif /* _FFR_SMTP_SSL */ 1747 #define D_UNQUALOK 'u' /* unqualified address is ok (cf) */ 1748 #define D_NOAUTH 'A' /* no AUTH */ 1749 #define D_NOCANON 'C' /* no canonification (cf) */ 1750 #define D_NOETRN 'E' /* no ETRN (MSA) */ 1751 #define D_NOTLS 'S' /* don't use STARTTLS */ 1752 #define D_ETRNONLY ((char)0x01) /* allow only ETRN (disk low) */ 1753 #define D_OPTIONAL 'O' /* optional socket */ 1754 #define D_DISABLE ((char)0x02) /* optional socket disabled */ 1755 #define D_ISSET ((char)0x03) /* this client struct is set */ 1756 1757 #if STARTTLS 1758 /* 1759 ** TLS 1760 */ 1761 1762 /* what to do in the TLS initialization */ 1763 #define TLS_I_NONE 0x00000000 /* no requirements... */ 1764 #define TLS_I_CERT_EX 0x00000001 /* CERT must exist */ 1765 #define TLS_I_CERT_UNR 0x00000002 /* CERT must be g/o unreadable */ 1766 #define TLS_I_KEY_EX 0x00000004 /* KEY must exist */ 1767 #define TLS_I_KEY_UNR 0x00000008 /* KEY must be g/o unreadable */ 1768 #define TLS_I_CERTP_EX 0x00000010 /* CA CERT PATH must exist */ 1769 #define TLS_I_CERTP_UNR 0x00000020 /* CA CERT PATH must be g/o unreadable */ 1770 #define TLS_I_CERTF_EX 0x00000040 /* CA CERT FILE must exist */ 1771 #define TLS_I_CERTF_UNR 0x00000080 /* CA CERT FILE must be g/o unreadable */ 1772 #define TLS_I_RSA_TMP 0x00000100 /* RSA TMP must be generated */ 1773 #define TLS_I_USE_KEY 0x00000200 /* private key must usable */ 1774 #define TLS_I_USE_CERT 0x00000400 /* certificate must be usable */ 1775 #define TLS_I_VRFY_PATH 0x00000800 /* load verify path must succeed */ 1776 #define TLS_I_VRFY_LOC 0x00001000 /* load verify default must succeed */ 1777 #define TLS_I_CACHE 0x00002000 /* require cache */ 1778 #define TLS_I_TRY_DH 0x00004000 /* try DH certificate */ 1779 #define TLS_I_REQ_DH 0x00008000 /* require DH certificate */ 1780 #define TLS_I_DHPAR_EX 0x00010000 /* require DH parameters */ 1781 #define TLS_I_DHPAR_UNR 0x00020000 /* DH param. must be g/o unreadable */ 1782 #define TLS_I_DH512 0x00040000 /* generate 512bit DH param */ 1783 #define TLS_I_DH1024 0x00080000 /* generate 1024bit DH param */ 1784 #define TLS_I_DH2048 0x00100000 /* generate 2048bit DH param */ 1785 #define TLS_I_NO_VRFY 0x00200000 /* do not require authentication */ 1786 #define TLS_I_KEY_OUNR 0x00400000 /* KEY must be o unreadable */ 1787 1788 /* require server cert */ 1789 #define TLS_I_SRV_CERT (TLS_I_CERT_EX | TLS_I_KEY_EX | \ 1790 TLS_I_KEY_UNR | TLS_I_KEY_OUNR | \ 1791 TLS_I_CERTP_EX | TLS_I_CERTF_EX | \ 1792 TLS_I_USE_KEY | TLS_I_USE_CERT) 1793 1794 /* server requirements */ 1795 #define TLS_I_SRV (TLS_I_SRV_CERT | TLS_I_RSA_TMP | TLS_I_VRFY_PATH | \ 1796 TLS_I_VRFY_LOC | TLS_I_TRY_DH | TLS_I_DH512) 1797 1798 /* client requirements */ 1799 #define TLS_I_CLT (TLS_I_KEY_UNR | TLS_I_KEY_OUNR) 1800 1801 #define TLS_AUTH_OK 0 1802 #define TLS_AUTH_NO 1 1803 #define TLS_AUTH_FAIL (-1) 1804 1805 /* functions */ 1806 extern bool init_tls_library __P((void)); 1807 extern bool inittls __P((SSL_CTX **, unsigned long, bool, char *, char *, char *, char *, char *)); 1808 extern bool initclttls __P((bool)); 1809 extern void setclttls __P((bool)); 1810 extern bool initsrvtls __P((bool)); 1811 extern int tls_get_info __P((SSL *, bool, char *, MACROS_T *, bool)); 1812 extern int endtls __P((SSL *, char *)); 1813 extern void tlslogerr __P((char *)); 1814 1815 1816 EXTERN char *CACERTpath; /* path to CA certificates (dir. with hashes) */ 1817 EXTERN char *CACERTfile; /* file with CA certificate */ 1818 EXTERN char *CltCERTfile; /* file with client certificate */ 1819 EXTERN char *Cltkeyfile; /* file with client private key */ 1820 # if _FFR_TLS_1 1821 EXTERN char *CipherList; /* list of ciphers */ 1822 EXTERN char *DHParams5; /* file with DH parameters (512) */ 1823 # endif /* _FFR_TLS_1 */ 1824 EXTERN char *DHParams; /* file with DH parameters */ 1825 EXTERN char *RandFile; /* source of random data */ 1826 EXTERN char *SrvCERTfile; /* file with server certificate */ 1827 EXTERN char *Srvkeyfile; /* file with server private key */ 1828 EXTERN unsigned long TLS_Srv_Opts; /* TLS server options */ 1829 #endif /* STARTTLS */ 1830 1831 /* 1832 ** Queue related items 1833 */ 1834 1835 /* queue file names */ 1836 #if _FFR_QUARANTINE 1837 # define ANYQFL_LETTER '?' 1838 # define QUARQF_LETTER 'h' 1839 #else /* _FFR_QUARANTINE */ 1840 /* Before quarantining, ANYQF == NORMQF */ 1841 # define ANYQFL_LETTER 'q' 1842 #endif /* _FFR_QUARANTINE */ 1843 #define DATAFL_LETTER 'd' 1844 #define XSCRPT_LETTER 'x' 1845 #define NORMQF_LETTER 'q' 1846 #define NEWQFL_LETTER 't' 1847 1848 # define TEMPQF_LETTER 'T' 1849 # define LOSEQF_LETTER 'Q' 1850 1851 /* queue sort order */ 1852 #define QSO_BYPRIORITY 0 /* sort by message priority */ 1853 #define QSO_BYHOST 1 /* sort by first host name */ 1854 #define QSO_BYTIME 2 /* sort by submission time */ 1855 #define QSO_BYFILENAME 3 /* sort by file name only */ 1856 #define QSO_RANDOM 4 /* sort in random order */ 1857 #define QSO_BYMODTIME 5 /* sort by modification time */ 1858 #if _FFR_RHS 1859 # define QSO_BYSHUFFLE 6 /* sort by shuffled host name */ 1860 #endif /* _FFR_RHS */ 1861 1862 #if _FFR_QUEUEDELAY 1863 # define QD_LINEAR 0 /* linear (old) delay alg */ 1864 # define QD_EXP 1 /* exponential delay alg */ 1865 #endif /* _FFR_QUEUEDELAY */ 1866 1867 #define NOQGRP (-1) /* no queue group (yet) */ 1868 #define ENVQGRP (-2) /* use queue group of envelope */ 1869 #define NOAQGRP (-3) /* no queue group in addr (yet) */ 1870 #define ISVALIDQGRP(x) ((x) >= 0) /* valid queue group? */ 1871 #define NOQDIR (-1) /* no queue directory (yet) */ 1872 #define ENVQDIR (-2) /* use queue directory of envelope */ 1873 #define NOAQDIR (-3) /* no queue directory in addr (yet) */ 1874 #define ISVALIDQDIR(x) ((x) >= 0) /* valid queue directory? */ 1875 #define RS_QUEUEGROUP "queuegroup" /* ruleset for queue group selection */ 1876 1877 #define NOW ((time_t) (-1)) /* queue return: now */ 1878 1879 /* SuperSafe values */ 1880 #define SAFE_NO 0 /* no fsync(): don't use... */ 1881 #define SAFE_INTERACTIVE 1 /* limit fsync() in -odi */ 1882 #define SAFE_REALLY 2 /* always fsync() */ 1883 1884 #if _FFR_QUARANTINE 1885 /* QueueMode bits */ 1886 # define QM_NORMAL ' ' 1887 # define QM_QUARANTINE 'Q' 1888 # define QM_LOST 'L' 1889 #endif /* _FFR_QUARANTINE */ 1890 1891 /* Queue Run Limitations */ 1892 struct queue_char 1893 { 1894 char *queue_match; /* string to match */ 1895 bool queue_negate; /* or not match, if set */ 1896 struct queue_char *queue_next; 1897 }; 1898 1899 typedef struct queue_char QUEUE_CHAR; 1900 1901 EXTERN int volatile CurRunners; /* current number of runner children */ 1902 EXTERN int MaxQueueRun; /* maximum number of jobs in one queue run */ 1903 EXTERN int MaxQueueChildren; /* max # of forked queue children */ 1904 EXTERN int MaxRunnersPerQueue; /* max # proc's active in queue group */ 1905 EXTERN int NiceQueueRun; /* nice queue runs to this value */ 1906 EXTERN int NumQueue; /* number of queue groups */ 1907 EXTERN int QueueFileMode; /* mode on files in mail queue */ 1908 #if _FFR_QUARANTINE 1909 EXTERN int QueueMode; /* which queue items to act upon */ 1910 #endif /* _FFR_QUARANTINE */ 1911 EXTERN int QueueSortOrder; /* queue sorting order algorithm */ 1912 EXTERN time_t MinQueueAge; /* min delivery interval */ 1913 EXTERN time_t QueueIntvl; /* intervals between running the queue */ 1914 EXTERN char *QueueDir; /* location of queue directory */ 1915 #if _FFR_QUEUEDELAY 1916 EXTERN int QueueAlg; /* algorithm for queue delays */ 1917 EXTERN time_t QueueInitDelay; /* initial queue delay */ 1918 EXTERN time_t QueueMaxDelay; /* maximum queue delay */ 1919 #endif /* _FFR_QUEUEDELAY */ 1920 EXTERN QUEUE_CHAR *QueueLimitId; /* limit queue run to id */ 1921 #if _FFR_QUARANTINE 1922 EXTERN QUEUE_CHAR *QueueLimitQuarantine; /* limit queue run to quarantine reason */ 1923 #endif /* _FFR_QUARANTINE */ 1924 EXTERN QUEUE_CHAR *QueueLimitRecipient; /* limit queue run to rcpt */ 1925 EXTERN QUEUE_CHAR *QueueLimitSender; /* limit queue run to sender */ 1926 EXTERN QUEUEGRP *Queue[MAXQUEUEGROUPS + 1]; /* queue groups */ 1927 1928 /* functions */ 1929 extern void assign_queueid __P((ENVELOPE *)); 1930 extern ADDRESS *copyqueue __P((ADDRESS *, SM_RPOOL_T *)); 1931 extern void cleanup_queues __P((void)); 1932 extern bool doqueuerun __P((void)); 1933 extern void initsys __P((ENVELOPE *)); 1934 extern void loseqfile __P((ENVELOPE *, char *)); 1935 extern int name2qid __P((char *)); 1936 extern char *qid_printname __P((ENVELOPE *)); 1937 extern char *qid_printqueue __P((int, int)); 1938 #if _FFR_QUARANTINE 1939 extern void quarantine_queue __P((char *, int)); 1940 #endif /* _FFR_QUARANTINE */ 1941 extern char *queuename __P((ENVELOPE *, int)); 1942 extern void queueup __P((ENVELOPE *, bool, bool)); 1943 extern bool runqueue __P((bool, bool, bool, bool)); 1944 extern int run_work_group __P((int, bool, bool, bool, bool)); 1945 extern void set_def_queueval __P((QUEUEGRP *, bool)); 1946 extern void setup_queues __P((bool)); 1947 extern bool setnewqueue __P((ENVELOPE *)); 1948 extern bool shouldqueue __P((long, time_t)); 1949 extern void sync_queue_time __P((void)); 1950 extern int print_single_queue __P((int, int)); 1951 #if REQUIRES_DIR_FSYNC 1952 # define SYNC_DIR(path, panic) sync_dir(path, panic) 1953 extern void sync_dir __P((char *, bool)); 1954 #else /* REQUIRES_DIR_FSYNC */ 1955 # define SYNC_DIR(path, panic) ((void) 0) 1956 #endif /* REQUIRES_DIR_FSYNC */ 1957 1958 /* 1959 ** Timeouts 1960 ** 1961 ** Indicated values are the MINIMUM per RFC 1123 section 5.3.2. 1962 */ 1963 1964 EXTERN struct 1965 { 1966 /* RFC 1123-specified timeouts [minimum value] */ 1967 time_t to_initial; /* initial greeting timeout [5m] */ 1968 time_t to_mail; /* MAIL command [5m] */ 1969 time_t to_rcpt; /* RCPT command [5m] */ 1970 time_t to_datainit; /* DATA initiation [2m] */ 1971 time_t to_datablock; /* DATA block [3m] */ 1972 time_t to_datafinal; /* DATA completion [10m] */ 1973 time_t to_nextcommand; /* next command [5m] */ 1974 /* following timeouts are not mentioned in RFC 1123 */ 1975 time_t to_iconnect; /* initial connection timeout (first try) */ 1976 time_t to_connect; /* initial connection timeout (later tries) */ 1977 time_t to_aconnect; /* all connections timeout (MX and A records) */ 1978 time_t to_rset; /* RSET command */ 1979 time_t to_helo; /* HELO command */ 1980 time_t to_quit; /* QUIT command */ 1981 time_t to_miscshort; /* misc short commands (NOOP, VERB, etc) */ 1982 time_t to_ident; /* IDENT protocol requests */ 1983 time_t to_fileopen; /* opening :include: and .forward files */ 1984 time_t to_control; /* process a control socket command */ 1985 time_t to_lhlo; /* LMTP: LHLO command */ 1986 #if SASL 1987 time_t to_auth; /* AUTH dialogue [10m] */ 1988 #endif /* SASL */ 1989 #if STARTTLS 1990 time_t to_starttls; /* STARTTLS dialogue [10m] */ 1991 #endif /* STARTTLS */ 1992 /* following are per message */ 1993 time_t to_q_return[MAXTOCLASS]; /* queue return timeouts */ 1994 time_t to_q_warning[MAXTOCLASS]; /* queue warning timeouts */ 1995 time_t res_retrans[MAXRESTOTYPES]; /* resolver retransmit */ 1996 int res_retry[MAXRESTOTYPES]; /* resolver retry */ 1997 } TimeOuts; 1998 1999 /* timeout classes for return and warning timeouts */ 2000 #define TOC_NORMAL 0 /* normal delivery */ 2001 #define TOC_URGENT 1 /* urgent delivery */ 2002 #define TOC_NONURGENT 2 /* non-urgent delivery */ 2003 2004 /* resolver timeout specifiers */ 2005 #define RES_TO_FIRST 0 /* first attempt */ 2006 #define RES_TO_NORMAL 1 /* subsequent attempts */ 2007 #define RES_TO_DEFAULT 2 /* default value */ 2008 2009 /* functions */ 2010 extern void inittimeouts __P((char *, bool)); 2011 2012 /* 2013 ** Interface probing 2014 */ 2015 2016 #define DPI_PROBENONE 0 /* Don't probe any interfaces */ 2017 #define DPI_PROBEALL 1 /* Probe all interfaces */ 2018 #define DPI_SKIPLOOPBACK 2 /* Don't probe loopback interfaces */ 2019 2020 /* 2021 ** Trace information 2022 */ 2023 2024 /* macros for debugging flags */ 2025 #define tTd(flag, level) (tTdvect[flag] >= (unsigned char)level) 2026 #define tTdlevel(flag) (tTdvect[flag]) 2027 2028 /* variables */ 2029 extern unsigned char tTdvect[100]; /* trace vector */ 2030 2031 /* 2032 ** Miscellaneous information. 2033 */ 2034 2035 /* 2036 ** The "no queue id" queue id for sm_syslog 2037 */ 2038 2039 #define NOQID "*~*" 2040 2041 /* use id or NOQID (to avoid NOQUEUE in logfile) */ 2042 #define E_ID(id) ((id) == NULL ? NOQID : (id)) 2043 2044 #define CURHOSTNAME (CurHostName == NULL ? "local" : CurHostName) 2045 2046 /* 2047 ** Some in-line functions 2048 */ 2049 2050 /* set exit status */ 2051 #define setstat(s) { \ 2052 if (ExitStat == EX_OK || ExitStat == EX_TEMPFAIL) \ 2053 ExitStat = s; \ 2054 } 2055 2056 /* make a copy of a string */ 2057 #define newstr(s) strcpy(xalloc(strlen(s) + 1), s) 2058 2059 #define STRUCTCOPY(s, d) d = s 2060 2061 /* free a pointer if it isn't NULL and set it to NULL */ 2062 #define SM_FREE_CLR(p) \ 2063 if ((p) != NULL) \ 2064 { \ 2065 sm_free(p); \ 2066 (p) = NULL; \ 2067 } \ 2068 else 2069 2070 /* 2071 ** Update a permanent string variable with a new value. 2072 ** The old value is freed, the new value is strdup'ed. 2073 ** 2074 ** We use sm_pstrdup_x to duplicate the string because it raises 2075 ** an exception on error, and because it allocates "permanent storage" 2076 ** which is not expected to be freed before process exit. 2077 ** The latter is important for memory leak analysis. 2078 ** 2079 ** If an exception occurs while strdup'ing the new value, 2080 ** then the variable remains set to the old value. 2081 ** That's why the strdup must occur before we free the old value. 2082 ** 2083 ** The macro uses a do loop so that this idiom will work: 2084 ** if (...) 2085 ** PSTRSET(var, val1); 2086 ** else 2087 ** PSTRSET(var, val2); 2088 */ 2089 #define PSTRSET(var, val) \ 2090 do \ 2091 { \ 2092 char *_newval = sm_pstrdup_x(val); \ 2093 if (var != NULL) \ 2094 sm_free(var); \ 2095 var = _newval; \ 2096 } while (0) 2097 2098 /* 2099 ** Global variables. 2100 */ 2101 2102 EXTERN bool AllowBogusHELO; /* allow syntax errors on HELO command */ 2103 EXTERN bool CheckAliases; /* parse addresses during newaliases */ 2104 EXTERN bool ColonOkInAddr; /* single colon legal in address */ 2105 #if !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) 2106 EXTERN bool ConfigFileRead; /* configuration file has been read */ 2107 #endif /* !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) */ 2108 EXTERN bool volatile DataProgress; /* have we sent anything since last check */ 2109 EXTERN bool DisConnected; /* running with OutChannel redirect to transcript file */ 2110 EXTERN bool DontExpandCnames; /* do not $[...$] expand CNAMEs */ 2111 EXTERN bool DontInitGroups; /* avoid initgroups() because of NIS cost */ 2112 EXTERN bool DontLockReadFiles; /* don't read lock support files */ 2113 EXTERN bool DontPruneRoutes; /* don't prune source routes */ 2114 EXTERN bool ForkQueueRuns; /* fork for each job when running the queue */ 2115 EXTERN bool FromFlag; /* if set, "From" person is explicit */ 2116 EXTERN bool GrabTo; /* if set, get recipients from msg */ 2117 EXTERN bool HasEightBits; /* has at least one eight bit input byte */ 2118 EXTERN bool HasWildcardMX; /* don't use MX records when canonifying */ 2119 EXTERN bool HoldErrs; /* only output errors to transcript */ 2120 EXTERN bool IgnoreHostStatus; /* ignore long term host status files */ 2121 EXTERN bool IgnrDot; /* don't let dot end messages */ 2122 EXTERN bool LogUsrErrs; /* syslog user errors (e.g., SMTP RCPT cmd) */ 2123 EXTERN bool MatchGecos; /* look for user names in gecos field */ 2124 EXTERN bool MeToo; /* send to the sender also */ 2125 EXTERN bool NoAlias; /* suppress aliasing */ 2126 EXTERN bool NoConnect; /* don't connect to non-local mailers */ 2127 EXTERN bool OnlyOneError; /* .... or only want to give one SMTP reply */ 2128 EXTERN bool QuickAbort; /* .... but only if we want a quick abort */ 2129 EXTERN bool ResNoAliases; /* don't use $HOSTALIASES */ 2130 EXTERN bool volatile RestartWorkGroup; /* daemon needs to restart some work groups */ 2131 EXTERN bool RrtImpliesDsn; /* turn Return-Receipt-To: into DSN */ 2132 EXTERN bool SaveFrom; /* save leading "From" lines */ 2133 EXTERN bool SendMIMEErrors; /* send error messages in MIME format */ 2134 EXTERN bool SevenBitInput; /* force 7-bit data on input */ 2135 EXTERN bool SingleLineFromHeader; /* force From: header to be one line */ 2136 EXTERN bool SingleThreadDelivery; /* single thread hosts on delivery */ 2137 #if _FFR_SOFT_BOUNCE 2138 EXTERN bool SoftBounce; /* replace 5xy by 4xy (for testing) */ 2139 #endif /* _FFR_SOFT_BOUNCE */ 2140 EXTERN bool volatile StopRequest; /* stop sending output */ 2141 EXTERN bool SuprErrs; /* set if we are suppressing errors */ 2142 EXTERN bool TryNullMXList; /* if we are the best MX, try host directly */ 2143 EXTERN bool UseMSP; /* mail submission: group writable queue ok? */ 2144 EXTERN bool WorkAroundBrokenAAAA; /* some nameservers return SERVFAIL on AAAA queries */ 2145 EXTERN bool UseErrorsTo; /* use Errors-To: header (back compat) */ 2146 EXTERN bool UseNameServer; /* using DNS -- interpret h_errno & MX RRs */ 2147 EXTERN char InetMode; /* default network for daemon mode */ 2148 EXTERN char OpMode; /* operation mode, see below */ 2149 EXTERN char SpaceSub; /* substitution for <lwsp> */ 2150 EXTERN int BadRcptThrottle; /* Throttle rejected RCPTs per SMTP message */ 2151 EXTERN int CheckpointInterval; /* queue file checkpoint interval */ 2152 EXTERN int ConfigLevel; /* config file level */ 2153 EXTERN int ConnRateThrottle; /* throttle for SMTP connection rate */ 2154 EXTERN int volatile CurChildren; /* current number of daemonic children */ 2155 EXTERN int CurrentLA; /* current load average */ 2156 EXTERN int DefaultNotify; /* default DSN notification flags */ 2157 EXTERN int DelayLA; /* load average to delay connections */ 2158 EXTERN int DontProbeInterfaces; /* don't probe interfaces for names */ 2159 EXTERN int Errors; /* set if errors (local to single pass) */ 2160 EXTERN int ExitStat; /* exit status code */ 2161 EXTERN int FastSplit; /* fast initial splitting of envelopes */ 2162 EXTERN int FileMode; /* mode on files */ 2163 EXTERN int LineNumber; /* line number in current input */ 2164 EXTERN int LogLevel; /* level of logging to perform */ 2165 EXTERN int MaxAliasRecursion; /* maximum depth of alias recursion */ 2166 EXTERN int MaxChildren; /* maximum number of daemonic children */ 2167 EXTERN int MaxForwardEntries; /* maximum number of forward entries */ 2168 EXTERN int MaxHeadersLength; /* max length of headers */ 2169 EXTERN int MaxHopCount; /* max # of hops until bounce */ 2170 EXTERN int MaxMacroRecursion; /* maximum depth of macro recursion */ 2171 EXTERN int MaxMimeFieldLength; /* maximum MIME field length */ 2172 EXTERN int MaxMimeHeaderLength; /* maximum MIME header length */ 2173 2174 EXTERN int MaxRcptPerMsg; /* max recipients per SMTP message */ 2175 EXTERN int MaxRuleRecursion; /* maximum depth of ruleset recursion */ 2176 EXTERN int MimeMode; /* MIME processing mode */ 2177 EXTERN int NoRecipientAction; 2178 2179 #if SM_CONF_SHM 2180 EXTERN int Numfilesys; /* number of queue file systems */ 2181 EXTERN int *PNumFileSys; 2182 # define NumFileSys (*PNumFileSys) 2183 # else /* SM_CONF_SHM */ 2184 EXTERN int NumFileSys; /* number of queue file systems */ 2185 # endif /* SM_CONF_SHM */ 2186 2187 EXTERN int QueueLA; /* load average starting forced queueing */ 2188 EXTERN int RefuseLA; /* load average refusing connections */ 2189 EXTERN int SuperSafe; /* be extra careful, even if expensive */ 2190 EXTERN int VendorCode; /* vendor-specific operation enhancements */ 2191 EXTERN int Verbose; /* set if blow-by-blow desired */ 2192 EXTERN gid_t DefGid; /* default gid to run as */ 2193 EXTERN gid_t RealGid; /* real gid of caller */ 2194 EXTERN gid_t RunAsGid; /* GID to become for bulk of run */ 2195 EXTERN gid_t EffGid; /* effective gid */ 2196 #if SM_CONF_SHM 2197 EXTERN key_t ShmKey; /* shared memory key */ 2198 # if _FFR_SELECT_SHM 2199 EXTERN char *ShmKeyFile; /* shared memory key file */ 2200 # endif /* _FFR_SELECT_SHM */ 2201 #endif /* SM_CONF_SHM */ 2202 EXTERN pid_t CurrentPid; /* current process id */ 2203 EXTERN pid_t DaemonPid; /* process id of daemon */ 2204 EXTERN uid_t DefUid; /* default uid to run as */ 2205 EXTERN uid_t RealUid; /* real uid of caller */ 2206 EXTERN uid_t RunAsUid; /* UID to become for bulk of run */ 2207 EXTERN uid_t TrustedUid; /* uid of trusted user for files and startup */ 2208 EXTERN size_t DataFileBufferSize; /* size of buf for in-core data file */ 2209 EXTERN time_t DeliverByMin; /* deliver by minimum time */ 2210 EXTERN time_t DialDelay; /* delay between dial-on-demand tries */ 2211 EXTERN time_t SafeAlias; /* interval to wait until @:@ in alias file */ 2212 EXTERN time_t ServiceCacheMaxAge; /* refresh interval for cache */ 2213 EXTERN size_t XscriptFileBufferSize; /* size of buf for in-core transcript file */ 2214 EXTERN MODE_T OldUmask; /* umask when sendmail starts up */ 2215 EXTERN long MaxMessageSize; /* advertised max size we will accept */ 2216 EXTERN long MinBlocksFree; /* min # of blocks free on queue fs */ 2217 EXTERN long QueueFactor; /* slope of queue function */ 2218 EXTERN long WkClassFact; /* multiplier for message class -> priority */ 2219 EXTERN long WkRecipFact; /* multiplier for # of recipients -> priority */ 2220 EXTERN long WkTimeFact; /* priority offset each time this job is run */ 2221 EXTERN char *ControlSocketName; /* control socket filename [control.c] */ 2222 EXTERN char *CurHostName; /* current host we are dealing with */ 2223 EXTERN char *DeadLetterDrop; /* path to dead letter office */ 2224 EXTERN char *DefUser; /* default user to run as (from DefUid) */ 2225 EXTERN char *DefaultCharSet; /* default character set for MIME */ 2226 EXTERN char *DoubleBounceAddr; /* where to send double bounces */ 2227 EXTERN char *ErrMsgFile; /* file to prepend to all error messages */ 2228 EXTERN char *FallBackMX; /* fall back MX host */ 2229 EXTERN char *FileName; /* name to print on error messages */ 2230 EXTERN char *ForwardPath; /* path to search for .forward files */ 2231 EXTERN char *HelpFile; /* location of SMTP help file */ 2232 EXTERN char *HostStatDir; /* location of host status information */ 2233 EXTERN char *HostsFile; /* path to /etc/hosts file */ 2234 extern char *Mbdb; /* mailbox database type */ 2235 EXTERN char *MustQuoteChars; /* quote these characters in phrases */ 2236 EXTERN char *MyHostName; /* name of this host for SMTP messages */ 2237 EXTERN char *OperatorChars; /* operators (old $o macro) */ 2238 EXTERN char *PidFile; /* location of proc id file [conf.c] */ 2239 EXTERN char *PostMasterCopy; /* address to get errs cc's */ 2240 EXTERN char *ProcTitlePrefix; /* process title prefix */ 2241 EXTERN char *RealHostName; /* name of host we are talking to */ 2242 EXTERN char *RealUserName; /* real user name of caller */ 2243 EXTERN char *volatile RestartRequest;/* a sendmail restart has been requested */ 2244 EXTERN char *RunAsUserName; /* user to become for bulk of run */ 2245 EXTERN char *SafeFileEnv; /* chroot location for file delivery */ 2246 EXTERN char *ServiceSwitchFile; /* backup service switch */ 2247 EXTERN char *volatile ShutdownRequest;/* a sendmail shutdown has been requested */ 2248 EXTERN char *SmtpGreeting; /* SMTP greeting message (old $e macro) */ 2249 EXTERN char *SmtpPhase; /* current phase in SMTP processing */ 2250 EXTERN char SmtpError[MAXLINE]; /* save failure error messages */ 2251 EXTERN char *StatFile; /* location of statistics summary */ 2252 EXTERN char *TimeZoneSpec; /* override time zone specification */ 2253 EXTERN char *UdbSpec; /* user database source spec */ 2254 EXTERN char *UnixFromLine; /* UNIX From_ line (old $l macro) */ 2255 EXTERN char **ExternalEnviron; /* saved user (input) environment */ 2256 EXTERN char **SaveArgv; /* argument vector for re-execing */ 2257 EXTERN BITMAP256 DontBlameSendmail; /* DontBlameSendmail bits */ 2258 EXTERN SM_FILE_T *InChannel; /* input connection */ 2259 EXTERN SM_FILE_T *OutChannel; /* output connection */ 2260 EXTERN SM_FILE_T *TrafficLogFile; /* file in which to log all traffic */ 2261 #if HESIOD 2262 EXTERN void *HesiodContext; 2263 #endif /* HESIOD */ 2264 EXTERN ENVELOPE *CurEnv; /* envelope currently being processed */ 2265 EXTERN char *RuleSetNames[MAXRWSETS]; /* ruleset number to name */ 2266 EXTERN char *UserEnviron[MAXUSERENVIRON + 1]; 2267 EXTERN struct rewrite *RewriteRules[MAXRWSETS]; 2268 EXTERN struct termescape TermEscape; /* terminal escape codes */ 2269 EXTERN SOCKADDR ConnectOnlyTo; /* override connection address (for testing) */ 2270 EXTERN SOCKADDR RealHostAddr; /* address of host we are talking to */ 2271 extern const SM_EXC_TYPE_T EtypeQuickAbort; /* type of a QuickAbort exception */ 2272 2273 2274 2275 /* 2276 ** Declarations of useful functions 2277 */ 2278 2279 /* Transcript file */ 2280 extern void closexscript __P((ENVELOPE *)); 2281 extern void openxscript __P((ENVELOPE *)); 2282 2283 /* error related */ 2284 extern void buffer_errors __P((void)); 2285 extern void flush_errors __P((bool)); 2286 extern void PRINTFLIKE(1, 2) message __P((const char *, ...)); 2287 extern void PRINTFLIKE(1, 2) nmessage __P((const char *, ...)); 2288 extern void PRINTFLIKE(1, 2) syserr __P((const char *, ...)); 2289 extern void PRINTFLIKE(2, 3) usrerrenh __P((char *, const char *, ...)); 2290 extern void PRINTFLIKE(1, 2) usrerr __P((const char *, ...)); 2291 extern int isenhsc __P((const char *, int)); 2292 extern int extenhsc __P((const char *, int, char *)); 2293 2294 /* alias file */ 2295 extern void alias __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 2296 extern bool aliaswait __P((MAP *, char *, bool)); 2297 extern void forward __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 2298 extern void readaliases __P((MAP *, SM_FILE_T *, bool, bool)); 2299 extern bool rebuildaliases __P((MAP *, bool)); 2300 extern void setalias __P((char *)); 2301 2302 /* logging */ 2303 extern void logdelivery __P((MAILER *, MCI *, char *, const char *, ADDRESS *, time_t, ENVELOPE *)); 2304 extern void logsender __P((ENVELOPE *, char *)); 2305 extern void PRINTFLIKE(3, 4) sm_syslog __P((int, const char *, const char *, ...)); 2306 2307 /* SMTP */ 2308 extern void giveresponse __P((int, char *, MAILER *, MCI *, ADDRESS *, time_t, ENVELOPE *, ADDRESS *)); 2309 extern int reply __P((MAILER *, MCI *, ENVELOPE *, time_t, void (*)(), char **)); 2310 extern void smtp __P((char *volatile, BITMAP256, ENVELOPE *volatile)); 2311 #if SASL 2312 extern int smtpauth __P((MAILER *, MCI *, ENVELOPE *)); 2313 #endif /* SASL */ 2314 extern int smtpdata __P((MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t)); 2315 extern int smtpgetstat __P((MAILER *, MCI *, ENVELOPE *)); 2316 extern int smtpmailfrom __P((MAILER *, MCI *, ENVELOPE *)); 2317 extern void smtpmessage __P((char *, MAILER *, MCI *, ...)); 2318 extern void smtpinit __P((MAILER *, MCI *, ENVELOPE *, bool)); 2319 extern char *smtptodsn __P((int)); 2320 extern int smtpprobe __P((MCI *)); 2321 extern void smtpquit __P((MAILER *, MCI *, ENVELOPE *)); 2322 extern int smtprcpt __P((ADDRESS *, MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t)); 2323 extern void smtprset __P((MAILER *, MCI *, ENVELOPE *)); 2324 2325 #define ISSMTPCODE(c) (isascii(c[0]) && isdigit(c[0]) && \ 2326 isascii(c[1]) && isdigit(c[1]) && \ 2327 isascii(c[2]) && isdigit(c[2])) 2328 #define ISSMTPREPLY(c) (ISSMTPCODE(c) && \ 2329 (c[3] == ' ' || c[3] == '-' || c[3] == '\0')) 2330 2331 /* delivery */ 2332 extern pid_t dowork __P((int, int, char *, bool, bool, ENVELOPE *)); 2333 extern pid_t doworklist __P((ENVELOPE *, bool, bool)); 2334 extern int endmailer __P((MCI *, ENVELOPE *, char **)); 2335 extern int mailfile __P((char *volatile, MAILER *volatile, ADDRESS *, volatile long, ENVELOPE *)); 2336 extern void sendall __P((ENVELOPE *, int)); 2337 2338 /* stats */ 2339 #define STATS_NORMAL 'n' 2340 #if _FFR_QUARANTINE 2341 # define STATS_QUARANTINE 'q' 2342 #endif /* _FFR_QUARANTINE */ 2343 #define STATS_REJECT 'r' 2344 #define STATS_CONNECT 'c' 2345 2346 extern void markstats __P((ENVELOPE *, ADDRESS *, int)); 2347 extern void clearstats __P((void)); 2348 extern void poststats __P((char *)); 2349 2350 /* control socket */ 2351 extern void closecontrolsocket __P((bool)); 2352 extern void clrcontrol __P((void)); 2353 extern void control_command __P((int, ENVELOPE *)); 2354 extern int opencontrolsocket __P((void)); 2355 2356 #if MILTER 2357 /* milter functions */ 2358 extern void milter_config __P((char *, struct milter **, int)); 2359 extern void milter_setup __P((char *)); 2360 extern void milter_set_option __P((char *, char *, bool)); 2361 extern bool milter_can_delrcpts __P((void)); 2362 extern bool milter_init __P((ENVELOPE *, char *)); 2363 extern void milter_quit __P((ENVELOPE *)); 2364 extern void milter_abort __P((ENVELOPE *)); 2365 extern char *milter_connect __P((char *, SOCKADDR, ENVELOPE *, char *)); 2366 extern char *milter_helo __P((char *, ENVELOPE *, char *)); 2367 extern char *milter_envfrom __P((char **, ENVELOPE *, char *)); 2368 extern char *milter_envrcpt __P((char **, ENVELOPE *, char *)); 2369 extern char *milter_data __P((ENVELOPE *, char *)); 2370 #endif /* MILTER */ 2371 2372 extern char *addquotes __P((char *, SM_RPOOL_T *)); 2373 extern char *arpadate __P((char *)); 2374 extern bool atobool __P((char *)); 2375 extern int atooct __P((char *)); 2376 extern void auth_warning __P((ENVELOPE *, const char *, ...)); 2377 extern int blocksignal __P((int)); 2378 extern bool bitintersect __P((BITMAP256, BITMAP256)); 2379 extern bool bitzerop __P((BITMAP256)); 2380 extern int check_bodytype __P((char *)); 2381 extern void buildfname __P((char *, char *, char *, int)); 2382 extern bool chkclientmodifiers __P((int)); 2383 extern bool chkdaemonmodifiers __P((int)); 2384 extern int checkcompat __P((ADDRESS *, ENVELOPE *)); 2385 #ifdef XDEBUG 2386 extern void checkfd012 __P((char *)); 2387 extern void checkfdopen __P((int, char *)); 2388 #endif /* XDEBUG */ 2389 extern void checkfds __P((char *)); 2390 extern bool chownsafe __P((int, bool)); 2391 extern void cleanstrcpy __P((char *, char *, int)); 2392 #if SM_CONF_SHM 2393 extern void cleanup_shm __P((bool)); 2394 #endif /* SM_CONF_SHM */ 2395 extern void clrdaemon __P((void)); 2396 extern void collect __P((SM_FILE_T *, bool, HDR **, ENVELOPE *)); 2397 extern time_t convtime __P((char *, int)); 2398 extern char **copyplist __P((char **, bool, SM_RPOOL_T *)); 2399 extern void copy_class __P((int, int)); 2400 extern time_t curtime __P((void)); 2401 extern char *defcharset __P((ENVELOPE *)); 2402 extern char *denlstring __P((char *, bool, bool)); 2403 extern void disconnect __P((int, ENVELOPE *)); 2404 #if _FFR_CONTROL_MSTAT 2405 extern void disk_status __P((SM_FILE_T *, char *)); 2406 #endif /* _FFR_CONTROL_MSTAT */ 2407 extern bool dns_getcanonname __P((char *, int, bool, int *, int *)); 2408 extern pid_t dofork __P((void)); 2409 extern int drop_privileges __P((bool)); 2410 extern int dsntoexitstat __P((char *)); 2411 extern void dumpfd __P((int, bool, bool)); 2412 extern void dumpstate __P((char *)); 2413 extern bool enoughdiskspace __P((long, ENVELOPE *)); 2414 extern char *exitstat __P((char *)); 2415 extern void fatal_error __P((SM_EXC_T *)); 2416 extern char *fgetfolded __P((char *, int, SM_FILE_T *)); 2417 extern void fill_fd __P((int, char *)); 2418 extern char *find_character __P((char *, int)); 2419 extern int finduser __P((char *, bool *, SM_MBDB_T *)); 2420 extern void finis __P((bool, bool, volatile int)); 2421 extern void fixcrlf __P((char *, bool)); 2422 extern long freediskspace __P((char *, long *)); 2423 #if NETINET6 && NEEDSGETIPNODE 2424 extern void freehostent __P((struct hostent *)); 2425 #endif /* NETINET6 && NEEDSGETIPNODE */ 2426 extern char *get_column __P((char *, int, int, char *, int)); 2427 extern char *getauthinfo __P((int, bool *)); 2428 extern int getdtsize __P((void)); 2429 extern int getla __P((void)); 2430 extern char *getmodifiers __P((char *, BITMAP256)); 2431 extern BITMAP256 *getrequests __P((ENVELOPE *)); 2432 extern char *getvendor __P((int)); 2433 extern void help __P((char *, ENVELOPE *)); 2434 extern void init_md __P((int, char **)); 2435 extern void initdaemon __P((void)); 2436 extern void inithostmaps __P((void)); 2437 extern void initmacros __P((ENVELOPE *)); 2438 extern void initsetproctitle __P((int, char **, char **)); 2439 extern void init_vendor_macros __P((ENVELOPE *)); 2440 extern SIGFUNC_DECL intsig __P((int)); 2441 extern bool isloopback __P((SOCKADDR sa)); 2442 extern void load_if_names __P((void)); 2443 extern bool lockfile __P((int, char *, char *, int)); 2444 extern void log_sendmail_pid __P((ENVELOPE *)); 2445 extern void logundelrcpts __P((ENVELOPE *, char *, int, bool)); 2446 extern char lower __P((int)); 2447 extern void makelower __P((char *)); 2448 extern int makeconnection_ds __P((char *, MCI *)); 2449 extern int makeconnection __P((char *, volatile unsigned int, MCI *, ENVELOPE *, time_t)); 2450 extern void makeworkgroups __P((void)); 2451 extern void mark_work_group_restart __P((int, int)); 2452 extern char * munchstring __P((char *, char **, int)); 2453 extern struct hostent *myhostname __P((char *, int)); 2454 extern char *nisplus_default_domain __P((void)); /* extern for Sun */ 2455 extern bool path_is_dir __P((char *, bool)); 2456 extern int pickqdir __P((QUEUEGRP *qg, long fsize, ENVELOPE *e)); 2457 extern char *pintvl __P((time_t, bool)); 2458 extern void printav __P((char **)); 2459 extern void printmailer __P((MAILER *)); 2460 extern void printnqe __P((SM_FILE_T *, char *)); 2461 extern void printopenfds __P((bool)); 2462 extern void printqueue __P((void)); 2463 extern void printrules __P((void)); 2464 extern pid_t prog_open __P((char **, int *, ENVELOPE *)); 2465 extern void putline __P((char *, MCI *)); 2466 extern void putxline __P((char *, size_t, MCI *, int)); 2467 extern void queueup_macros __P((int, SM_FILE_T *, ENVELOPE *)); 2468 extern void readcf __P((char *, bool, ENVELOPE *)); 2469 extern SIGFUNC_DECL reapchild __P((int)); 2470 extern int releasesignal __P((int)); 2471 extern void resetlimits __P((void)); 2472 extern void restart_daemon __P((void)); 2473 extern void restart_marked_work_groups __P(()); 2474 extern bool rfc822_string __P((char *)); 2475 extern bool savemail __P((ENVELOPE *, bool)); 2476 extern void seed_random __P((void)); 2477 extern void sendtoargv __P((char **, ENVELOPE *)); 2478 extern void setclientoptions __P((char *)); 2479 extern bool setdaemonoptions __P((char *)); 2480 extern void setdefaults __P((ENVELOPE *)); 2481 extern void setdefuser __P((void)); 2482 extern bool setvendor __P((char *)); 2483 extern void set_op_mode __P((int)); 2484 extern void setoption __P((int, char *, bool, bool, ENVELOPE *)); 2485 extern sigfunc_t setsignal __P((int, sigfunc_t)); 2486 extern void setuserenv __P((const char *, const char *)); 2487 extern void settime __P((ENVELOPE *)); 2488 extern char *sfgets __P((char *, int, SM_FILE_T *, time_t, char *)); 2489 extern char *shortenstring __P((const char *, size_t)); 2490 extern char *shorten_hostname __P((char [])); 2491 extern bool shorten_rfc822_string __P((char *, size_t)); 2492 extern void shutdown_daemon __P((void)); 2493 extern struct hostent *sm_gethostbyname __P((char *, int)); 2494 extern struct hostent *sm_gethostbyaddr __P((char *, int, int)); 2495 extern void sm_getla __P((void)); 2496 extern struct passwd *sm_getpwnam __P((char *)); 2497 extern struct passwd *sm_getpwuid __P((UID_T)); 2498 extern void sm_setproctitle __P((bool, ENVELOPE *, const char *, ...)); 2499 extern pid_t sm_wait __P((int *)); 2500 extern bool split_by_recipient __P((ENVELOPE *e)); 2501 extern void stop_sendmail __P((void)); 2502 extern char *str2prt __P((char *)); 2503 extern bool strreplnonprt __P((char *, int)); 2504 extern bool strcontainedin __P((bool, char *, char *)); 2505 extern int switch_map_find __P((char *, char *[], short [])); 2506 extern bool transienterror __P((int)); 2507 #if _FFR_BESTMX_BETTER_TRUNCATION || _FFR_DNSMAP_MULTI 2508 extern void truncate_at_delim __P((char *, size_t, int)); 2509 #endif /* _FFR_BESTMX_BETTER_TRUNCATION || _FFR_DNSMAP_MULTI */ 2510 extern void tTflag __P((char *)); 2511 extern void tTsetup __P((unsigned char *, unsigned int, char *)); 2512 extern SIGFUNC_DECL tick __P((int)); 2513 extern char *ttypath __P((void)); 2514 extern void unlockqueue __P((ENVELOPE *)); 2515 #if !HASUNSETENV 2516 extern void unsetenv __P((char *)); 2517 #endif /* !HASUNSETENV */ 2518 2519 /* update file system information: +/- some blocks */ 2520 #if SM_CONF_SHM 2521 extern void upd_qs __P((ENVELOPE *, bool, bool)); 2522 # define updfs(e, delete, avail) upd_qs(e, delete, avail) 2523 #else /* SM_CONF_SHM */ 2524 # define updfs(e, delete, avail) 2525 #endif /* SM_CONF_SHM */ 2526 2527 extern char *username __P((void)); 2528 extern bool usershellok __P((char *, char *)); 2529 extern void vendor_post_defaults __P((ENVELOPE *)); 2530 extern void vendor_pre_defaults __P((ENVELOPE *)); 2531 extern int waitfor __P((pid_t)); 2532 extern bool writable __P((char *, ADDRESS *, long)); 2533 #if SM_HEAP_CHECK 2534 # define xalloc(size) xalloc_tagged(size, __FILE__, __LINE__) 2535 extern char *xalloc_tagged __P((int, char*, int)); 2536 #else /* SM_HEAP_CHECK */ 2537 extern char *xalloc __P((int)); 2538 #endif /* SM_HEAP_CHECK */ 2539 extern void xputs __P((const char *)); 2540 extern char *xtextify __P((char *, char *)); 2541 extern bool xtextok __P((char *)); 2542 extern int xunlink __P((char *)); 2543 extern char *xuntextify __P((char *)); 2544 2545 2546 #endif /* ! _SENDMAIL_H */ 2547