1 /* 2 * Copyright (c) 1998-2004 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 #ifndef MILTER 21 # define MILTER 1 /* turn on MILTER by default */ 22 #endif /* MILTER */ 23 24 #ifdef _DEFINE 25 # define EXTERN 26 #else /* _DEFINE */ 27 # define EXTERN extern 28 #endif /* _DEFINE */ 29 30 31 #include <unistd.h> 32 33 #include <stddef.h> 34 #include <stdlib.h> 35 #include <stdio.h> 36 #include <ctype.h> 37 #include <setjmp.h> 38 #include <string.h> 39 #include <time.h> 40 # ifdef EX_OK 41 # undef EX_OK /* for SVr4.2 SMP */ 42 # endif /* EX_OK */ 43 44 #include "sendmail/sendmail.h" 45 46 /* profiling? */ 47 #if MONCONTROL 48 # define SM_PROF(x) moncontrol(x) 49 #else /* MONCONTROL */ 50 # define SM_PROF(x) 51 #endif /* MONCONTROL */ 52 53 #ifdef _DEFINE 54 # ifndef lint 55 SM_UNUSED(static char SmailId[]) = "@(#)$Id: sendmail.h,v 8.990 2004/11/09 19:45:46 ca Exp $"; 56 # endif /* ! lint */ 57 #endif /* _DEFINE */ 58 59 #include "bf.h" 60 #include "timers.h" 61 #include <sm/exc.h> 62 #include <sm/heap.h> 63 #include <sm/debug.h> 64 #include <sm/rpool.h> 65 #include <sm/io.h> 66 #include <sm/path.h> 67 #include <sm/signal.h> 68 #include <sm/clock.h> 69 #include <sm/mbdb.h> 70 #include <sm/errstring.h> 71 #include <sm/sysexits.h> 72 #include <sm/shm.h> 73 74 #ifdef LOG 75 # include <syslog.h> 76 #endif /* LOG */ 77 78 79 80 # if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 81 # include <sys/socket.h> 82 # endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */ 83 # if NETUNIX 84 # include <sys/un.h> 85 # endif /* NETUNIX */ 86 # if NETINET || NETINET6 87 # include <netinet/in.h> 88 # endif /* NETINET || NETINET6 */ 89 # if NETINET6 90 /* 91 ** There is no standard yet for IPv6 includes. 92 ** Specify OS specific implementation in conf.h 93 */ 94 # endif /* NETINET6 */ 95 # if NETISO 96 # include <netiso/iso.h> 97 # endif /* NETISO */ 98 # if NETNS 99 # include <netns/ns.h> 100 # endif /* NETNS */ 101 # if NETX25 102 # include <netccitt/x25.h> 103 # endif /* NETX25 */ 104 105 # if NAMED_BIND 106 # include <arpa/nameser.h> 107 # ifdef NOERROR 108 # undef NOERROR /* avoid <sys/streams.h> conflict */ 109 # endif /* NOERROR */ 110 # include <resolv.h> 111 # else /* NAMED_BIND */ 112 # undef SM_SET_H_ERRNO 113 # define SM_SET_H_ERRNO(err) 114 # endif /* NAMED_BIND */ 115 116 # if HESIOD 117 # include <hesiod.h> 118 # if !defined(HES_ER_OK) || defined(HESIOD_INTERFACES) 119 # define HESIOD_INIT /* support for the new interface */ 120 # endif /* !defined(HES_ER_OK) || defined(HESIOD_INTERFACES) */ 121 # endif /* HESIOD */ 122 123 #if STARTTLS 124 # include <openssl/ssl.h> 125 # if !TLS_NO_RSA 126 # define RSA_KEYLENGTH 512 127 # endif /* !TLS_NO_RSA */ 128 #endif /* STARTTLS */ 129 130 #if SASL /* include the sasl include files if we have them */ 131 132 133 # if SASL == 2 || SASL >= 20000 134 # include <sasl/sasl.h> 135 # include <sasl/saslutil.h> 136 # else /* SASL == 2 || SASL >= 20000 */ 137 # include <sasl.h> 138 # include <saslutil.h> 139 # endif /* SASL == 2 || SASL >= 20000 */ 140 # if defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) 141 # define SASL_VERSION (SASL_VERSION_MAJOR * 10000) + (SASL_VERSION_MINOR * 100) + SASL_VERSION_STEP 142 # if SASL == 1 || SASL == 2 143 # undef SASL 144 # define SASL SASL_VERSION 145 # else /* SASL == 1 || SASL == 2 */ 146 # if SASL != SASL_VERSION 147 ERROR README: -DSASL (SASL) does not agree with the version of the CYRUS_SASL library (SASL_VERSION) 148 ERROR README: see README! 149 # endif /* SASL != SASL_VERSION */ 150 # endif /* SASL == 1 || SASL == 2 */ 151 # else /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */ 152 # if SASL == 1 153 ERROR README: please set -DSASL to the version of the CYRUS_SASL library 154 ERROR README: see README! 155 # endif /* SASL == 1 */ 156 # endif /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */ 157 #endif /* SASL */ 158 159 /* 160 ** Following are "sort of" configuration constants, but they should 161 ** be pretty solid on most architectures today. They have to be 162 ** defined after <arpa/nameser.h> because some versions of that 163 ** file also define them. In all cases, we can't use sizeof because 164 ** some systems (e.g., Crays) always treat everything as being at 165 ** least 64 bits. 166 */ 167 168 #ifndef INADDRSZ 169 # define INADDRSZ 4 /* size of an IPv4 address in bytes */ 170 #endif /* ! INADDRSZ */ 171 #ifndef IN6ADDRSZ 172 # define IN6ADDRSZ 16 /* size of an IPv6 address in bytes */ 173 #endif /* ! IN6ADDRSZ */ 174 #ifndef INT16SZ 175 # define INT16SZ 2 /* size of a 16 bit integer in bytes */ 176 #endif /* ! INT16SZ */ 177 #ifndef INT32SZ 178 # define INT32SZ 4 /* size of a 32 bit integer in bytes */ 179 #endif /* ! INT32SZ */ 180 #ifndef INADDR_LOOPBACK 181 # define INADDR_LOOPBACK 0x7f000001 /* loopback address */ 182 #endif /* ! INADDR_LOOPBACK */ 183 184 /* 185 ** Error return from inet_addr(3), in case not defined in /usr/include. 186 */ 187 188 #ifndef INADDR_NONE 189 # define INADDR_NONE 0xffffffff 190 #endif /* ! INADDR_NONE */ 191 192 193 /* (f)open() modes for queue files */ 194 # define QF_O_EXTRA 0 195 196 197 /* 198 ** An 'argument class' describes the storage allocation status 199 ** of an object pointed to by an argument to a function. 200 */ 201 202 typedef enum 203 { 204 A_HEAP, /* the storage was allocated by malloc, and the 205 * ownership of the storage is ceded by the caller 206 * to the called function. */ 207 A_TEMP, /* The storage is temporary, and is only guaranteed 208 * to be valid for the duration of the function call. */ 209 A_PERM /* The storage is 'permanent': this might mean static 210 * storage, or rpool storage. */ 211 } ARGCLASS_T; 212 213 /* forward references for prototypes */ 214 typedef struct envelope ENVELOPE; 215 typedef struct mailer MAILER; 216 typedef struct queuegrp QUEUEGRP; 217 218 /* 219 ** Address structure. 220 ** Addresses are stored internally in this structure. 221 */ 222 223 struct address 224 { 225 char *q_paddr; /* the printname for the address */ 226 char *q_user; /* user name */ 227 char *q_ruser; /* real user name, or NULL if q_user */ 228 char *q_host; /* host name */ 229 struct mailer *q_mailer; /* mailer to use */ 230 unsigned long q_flags; /* status flags, see below */ 231 uid_t q_uid; /* user-id of receiver (if known) */ 232 gid_t q_gid; /* group-id of receiver (if known) */ 233 char *q_home; /* home dir (local mailer only) */ 234 char *q_fullname; /* full name if known */ 235 struct address *q_next; /* chain */ 236 struct address *q_alias; /* address this results from */ 237 char *q_owner; /* owner of q_alias */ 238 struct address *q_tchain; /* temporary use chain */ 239 #if PIPELINING 240 struct address *q_pchain; /* chain for pipelining */ 241 #endif /* PIPELINING */ 242 char *q_finalrcpt; /* Final-Recipient: DSN header */ 243 char *q_orcpt; /* ORCPT parameter from RCPT TO: line */ 244 char *q_status; /* status code for DSNs */ 245 char *q_rstatus; /* remote status message for DSNs */ 246 time_t q_statdate; /* date of status messages */ 247 char *q_statmta; /* MTA generating q_rstatus */ 248 short q_state; /* address state, see below */ 249 char *q_signature; /* MX-based sorting value */ 250 int q_qgrp; /* index into queue groups */ 251 int q_qdir; /* queue directory inside group */ 252 char *q_message; /* error message */ 253 }; 254 255 typedef struct address ADDRESS; 256 257 /* bit values for q_flags */ 258 #define QGOODUID 0x00000001 /* the q_uid q_gid fields are good */ 259 #define QPRIMARY 0x00000002 /* set from RCPT or argv */ 260 #define QNOTREMOTE 0x00000004 /* address not for remote forwarding */ 261 #define QSELFREF 0x00000008 /* this address references itself */ 262 #define QBOGUSSHELL 0x00000010 /* user has no valid shell listed */ 263 #define QUNSAFEADDR 0x00000020 /* address acquired via unsafe path */ 264 #define QPINGONSUCCESS 0x00000040 /* give return on successful delivery */ 265 #define QPINGONFAILURE 0x00000080 /* give return on failure */ 266 #define QPINGONDELAY 0x00000100 /* give return on message delay */ 267 #define QHASNOTIFY 0x00000200 /* propagate notify parameter */ 268 #define QRELAYED 0x00000400 /* DSN: relayed to non-DSN aware sys */ 269 #define QEXPANDED 0x00000800 /* DSN: undergone list expansion */ 270 #define QDELIVERED 0x00001000 /* DSN: successful final delivery */ 271 #define QDELAYED 0x00002000 /* DSN: message delayed */ 272 #define QALIAS 0x00004000 /* expanded alias */ 273 #define QBYTRACE 0x00008000 /* DeliverBy: trace */ 274 #define QBYNDELAY 0x00010000 /* DeliverBy: notify, delay */ 275 #define QBYNRELAY 0x00020000 /* DeliverBy: notify, relayed */ 276 #define QTHISPASS 0x40000000 /* temp: address set this pass */ 277 #define QRCPTOK 0x80000000 /* recipient() processed address */ 278 279 #define Q_PINGFLAGS (QPINGONSUCCESS|QPINGONFAILURE|QPINGONDELAY) 280 281 /* values for q_state */ 282 #define QS_OK 0 /* address ok (for now)/not yet tried */ 283 #define QS_SENT 1 /* good address, delivery complete */ 284 #define QS_BADADDR 2 /* illegal address */ 285 #define QS_QUEUEUP 3 /* save address in queue */ 286 #define QS_RETRY 4 /* retry delivery for next MX */ 287 #define QS_VERIFIED 5 /* verified, but not expanded */ 288 289 /* 290 ** Notice: all of the following values are variations of QS_DONTSEND. 291 ** If new states are added, they must be inserted in the proper place! 292 ** See the macro definition of QS_IS_DEAD() down below. 293 */ 294 295 #define QS_DONTSEND 6 /* don't send to this address */ 296 #define QS_EXPANDED 7 /* expanded */ 297 #define QS_SENDER 8 /* message sender (MeToo) */ 298 #define QS_CLONED 9 /* addr cloned to split envelope */ 299 #define QS_DISCARDED 10 /* rcpt discarded (EF_DISCARD) */ 300 #define QS_REPLACED 11 /* maplocaluser()/UserDB replaced */ 301 #define QS_REMOVED 12 /* removed (removefromlist()) */ 302 #define QS_DUPLICATE 13 /* duplicate suppressed */ 303 #define QS_INCLUDED 14 /* :include: delivery */ 304 #define QS_FATALERR 15 /* fatal error, don't deliver */ 305 306 /* address state testing primitives */ 307 #define QS_IS_OK(s) ((s) == QS_OK) 308 #define QS_IS_SENT(s) ((s) == QS_SENT) 309 #define QS_IS_BADADDR(s) ((s) == QS_BADADDR) 310 #define QS_IS_QUEUEUP(s) ((s) == QS_QUEUEUP) 311 #define QS_IS_RETRY(s) ((s) == QS_RETRY) 312 #define QS_IS_VERIFIED(s) ((s) == QS_VERIFIED) 313 #define QS_IS_EXPANDED(s) ((s) == QS_EXPANDED) 314 #define QS_IS_REMOVED(s) ((s) == QS_REMOVED) 315 #define QS_IS_UNDELIVERED(s) ((s) == QS_OK || \ 316 (s) == QS_QUEUEUP || \ 317 (s) == QS_RETRY || \ 318 (s) == QS_VERIFIED) 319 #define QS_IS_UNMARKED(s) ((s) == QS_OK || \ 320 (s) == QS_RETRY) 321 #define QS_IS_SENDABLE(s) ((s) == QS_OK || \ 322 (s) == QS_QUEUEUP || \ 323 (s) == QS_RETRY) 324 #define QS_IS_ATTEMPTED(s) ((s) == QS_QUEUEUP || \ 325 (s) == QS_RETRY || \ 326 (s) == QS_SENT) 327 #define QS_IS_DEAD(s) ((s) >= QS_DONTSEND) 328 329 330 #define NULLADDR ((ADDRESS *) NULL) 331 332 extern ADDRESS NullAddress; /* a null (template) address [main.c] */ 333 334 /* functions */ 335 extern void cataddr __P((char **, char **, char *, int, int)); 336 extern char *crackaddr __P((char *, ENVELOPE *)); 337 extern bool emptyaddr __P((ADDRESS *)); 338 extern ADDRESS *getctladdr __P((ADDRESS *)); 339 extern int include __P((char *, bool, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 340 extern bool invalidaddr __P((char *, char *, bool)); 341 extern ADDRESS *parseaddr __P((char *, ADDRESS *, int, int, char **, 342 ENVELOPE *, bool)); 343 extern char **prescan __P((char *, int, char[], int, char **, unsigned char *, bool)); 344 extern void printaddr __P((SM_FILE_T *, ADDRESS *, bool)); 345 extern ADDRESS *recipient __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 346 extern char *remotename __P((char *, MAILER *, int, int *, ENVELOPE *)); 347 extern int rewrite __P((char **, int, int, ENVELOPE *, int)); 348 extern bool sameaddr __P((ADDRESS *, ADDRESS *)); 349 extern int sendtolist __P((char *, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 350 #if MILTER 351 extern int removefromlist __P((char *, ADDRESS **, ENVELOPE *)); 352 #endif /* MILTER */ 353 extern void setsender __P((char *, ENVELOPE *, char **, int, bool)); 354 355 /* macro to simplify the common call to rewrite() */ 356 #define REWRITE(pvp, rs, env) rewrite(pvp, rs, 0, env, MAXATOM) 357 358 /* 359 ** Mailer definition structure. 360 ** Every mailer known to the system is declared in this 361 ** structure. It defines the pathname of the mailer, some 362 ** flags associated with it, and the argument vector to 363 ** pass to it. The flags are defined in conf.c 364 ** 365 ** The argument vector is expanded before actual use. All 366 ** words except the first are passed through the macro 367 ** processor. 368 */ 369 370 struct mailer 371 { 372 char *m_name; /* symbolic name of this mailer */ 373 char *m_mailer; /* pathname of the mailer to use */ 374 char *m_mtatype; /* type of this MTA */ 375 char *m_addrtype; /* type for addresses */ 376 char *m_diagtype; /* type for diagnostics */ 377 BITMAP256 m_flags; /* status flags, see below */ 378 short m_mno; /* mailer number internally */ 379 short m_nice; /* niceness to run at (mostly for prog) */ 380 char **m_argv; /* template argument vector */ 381 short m_sh_rwset; /* rewrite set: sender header addresses */ 382 short m_se_rwset; /* rewrite set: sender envelope addresses */ 383 short m_rh_rwset; /* rewrite set: recipient header addresses */ 384 short m_re_rwset; /* rewrite set: recipient envelope addresses */ 385 char *m_eol; /* end of line string */ 386 long m_maxsize; /* size limit on message to this mailer */ 387 int m_linelimit; /* max # characters per line */ 388 int m_maxdeliveries; /* max deliveries per mailer connection */ 389 char *m_execdir; /* directory to chdir to before execv */ 390 char *m_rootdir; /* directory to chroot to before execv */ 391 uid_t m_uid; /* UID to run as */ 392 gid_t m_gid; /* GID to run as */ 393 char *m_defcharset; /* default character set */ 394 time_t m_wait; /* timeout to wait for end */ 395 int m_maxrcpt; /* max recipients per envelope client-side */ 396 short m_qgrp; /* queue group for this mailer */ 397 }; 398 399 /* bits for m_flags */ 400 #define M_ESMTP 'a' /* run Extended SMTP */ 401 #define M_ALIASABLE 'A' /* user can be LHS of an alias */ 402 #define M_BLANKEND 'b' /* ensure blank line at end of message */ 403 #define M_STRIPBACKSL 'B' /* strip all leading backslashes from user */ 404 #define M_NOCOMMENT 'c' /* don't include comment part of address */ 405 #define M_CANONICAL 'C' /* make addresses canonical "u@dom" */ 406 #define M_NOBRACKET 'd' /* never angle bracket envelope route-addrs */ 407 /* 'D' CF: include Date: */ 408 #define M_EXPENSIVE 'e' /* it costs to use this mailer.... */ 409 #define M_ESCFROM 'E' /* escape From lines to >From */ 410 #define M_FOPT 'f' /* mailer takes picky -f flag */ 411 /* 'F' CF: include From: or Resent-From: */ 412 #define M_NO_NULL_FROM 'g' /* sender of errors should be $g */ 413 #define M_HST_UPPER 'h' /* preserve host case distinction */ 414 #define M_PREHEAD 'H' /* MAIL11V3: preview headers */ 415 #define M_UDBENVELOPE 'i' /* do udbsender rewriting on envelope */ 416 #define M_INTERNAL 'I' /* SMTP to another sendmail site */ 417 #define M_UDBRECIPIENT 'j' /* do udbsender rewriting on recipient lines */ 418 #define M_NOLOOPCHECK 'k' /* don't check for loops in HELO command */ 419 #define M_CHUNKING 'K' /* CHUNKING: reserved for future use */ 420 #define M_LOCALMAILER 'l' /* delivery is to this host */ 421 #define M_LIMITS 'L' /* must enforce SMTP line limits */ 422 #define M_MUSER 'm' /* can handle multiple users at once */ 423 /* 'M' CF: include Message-Id: */ 424 #define M_NHDR 'n' /* don't insert From line */ 425 #define M_MANYSTATUS 'N' /* MAIL11V3: DATA returns multi-status */ 426 #define M_RUNASRCPT 'o' /* always run mailer as recipient */ 427 #define M_FROMPATH 'p' /* use reverse-path in MAIL FROM: */ 428 /* 'P' CF: include Return-Path: */ 429 #define M_VRFY250 'q' /* VRFY command returns 250 instead of 252 */ 430 #define M_ROPT 'r' /* mailer takes picky -r flag */ 431 #define M_SECURE_PORT 'R' /* try to send on a reserved TCP port */ 432 #define M_STRIPQ 's' /* strip quote chars from user/host */ 433 #define M_SPECIFIC_UID 'S' /* run as specific uid/gid */ 434 #define M_USR_UPPER 'u' /* preserve user case distinction */ 435 #define M_UGLYUUCP 'U' /* this wants an ugly UUCP from line */ 436 #define M_CONTENT_LEN 'v' /* add Content-Length: header (SVr4) */ 437 /* 'V' UIUC: !-relativize all addresses */ 438 #define M_HASPWENT 'w' /* check for /etc/passwd entry */ 439 #define M_NOHOSTSTAT 'W' /* ignore long term host status information */ 440 /* 'x' CF: include Full-Name: */ 441 #define M_XDOT 'X' /* use hidden-dot algorithm */ 442 #define M_LMTP 'z' /* run Local Mail Transport Protocol */ 443 #define M_DIALDELAY 'Z' /* apply dial delay sleeptime */ 444 #define M_NOMX '0' /* turn off MX lookups */ 445 #define M_NONULLS '1' /* don't send null bytes */ 446 #define M_FSMTP '2' /* force SMTP (no ESMTP even if offered) */ 447 #define M_EBCDIC '3' /* extend Q-P encoding for EBCDIC */ 448 #define M_TRYRULESET5 '5' /* use ruleset 5 after local aliasing */ 449 #define M_7BITHDRS '6' /* strip headers to 7 bits even in 8 bit path */ 450 #define M_7BITS '7' /* use 7-bit path */ 451 #define M_8BITS '8' /* force "just send 8" behaviour */ 452 #define M_MAKE8BIT '9' /* convert 7 -> 8 bit if appropriate */ 453 #define M_CHECKINCLUDE ':' /* check for :include: files */ 454 #define M_CHECKPROG '|' /* check for |program addresses */ 455 #define M_CHECKFILE '/' /* check for /file addresses */ 456 #define M_CHECKUDB '@' /* user can be user database key */ 457 #define M_CHECKHDIR '~' /* SGI: check for valid home directory */ 458 #define M_HOLD '%' /* Hold delivery until ETRN/-qI/-qR/-qS */ 459 #define M_PLUS '+' /* Reserved: Used in mc for adding new flags */ 460 #define M_MINUS '-' /* Reserved: Used in mc for removing flags */ 461 462 /* functions */ 463 extern void initerrmailers __P((void)); 464 extern void makemailer __P((char *)); 465 extern void makequeue __P((char *, bool)); 466 extern void runqueueevent __P((int)); 467 #if _FFR_QUEUE_RUN_PARANOIA 468 extern bool checkqueuerunner __P((void)); 469 #endif /* _FFR_QUEUE_RUN_PARANOIA */ 470 471 EXTERN MAILER *FileMailer; /* ptr to *file* mailer */ 472 EXTERN MAILER *InclMailer; /* ptr to *include* mailer */ 473 EXTERN MAILER *LocalMailer; /* ptr to local mailer */ 474 EXTERN MAILER *ProgMailer; /* ptr to program mailer */ 475 EXTERN MAILER *Mailer[MAXMAILERS + 1]; 476 477 /* 478 ** Queue group definition structure. 479 ** Every queue group known to the system is declared in this structure. 480 ** It defines the basic pathname of the queue group, some flags 481 ** associated with it, and the argument vector to pass to it. 482 */ 483 484 struct qpaths_s 485 { 486 char *qp_name; /* name of queue dir, relative path */ 487 short qp_subdirs; /* use subdirs? */ 488 short qp_fsysidx; /* file system index of this directory */ 489 # if SM_CONF_SHM 490 int qp_idx; /* index into array for queue information */ 491 # endif /* SM_CONF_SHM */ 492 }; 493 494 typedef struct qpaths_s QPATHS; 495 496 struct queuegrp 497 { 498 char *qg_name; /* symbolic name of this queue group */ 499 500 /* 501 ** For now this is the same across all queue groups. 502 ** Otherwise we have to play around with chdir(). 503 */ 504 505 char *qg_qdir; /* common component of queue directory */ 506 short qg_index; /* queue number internally, index in Queue[] */ 507 int qg_maxqrun; /* max # of jobs in 1 queuerun */ 508 int qg_numqueues; /* number of queues in this queue */ 509 510 /* 511 ** qg_queueintvl == 0 denotes that no individual value is used. 512 ** Whatever accesses this must deal with "<= 0" as 513 ** "not set, use appropriate default". 514 */ 515 516 time_t qg_queueintvl; /* interval for queue runs */ 517 QPATHS *qg_qpaths; /* list of queue directories */ 518 BITMAP256 qg_flags; /* status flags, see below */ 519 short qg_nice; /* niceness for queue run */ 520 int qg_wgrp; /* Assigned to this work group */ 521 int qg_maxlist; /* max items in work queue for this group */ 522 int qg_curnum; /* current number of queue for queue runs */ 523 int qg_maxrcpt; /* max recipients per envelope, 0==no limit */ 524 525 time_t qg_nextrun; /* time for next queue runs */ 526 #if _FFR_QUEUE_GROUP_SORTORDER 527 short qg_sortorder; /* how do we sort this queuerun */ 528 #endif /* _FFR_QUEUE_GROUP_SORTORDER */ 529 #if 0 530 long qg_wkrcptfact; /* multiplier for # recipients -> priority */ 531 long qg_qfactor; /* slope of queue function */ 532 bool qg_doqueuerun; /* XXX flag is it time to do a queuerun */ 533 #endif /* 0 */ 534 }; 535 536 /* bits for qg_flags (XXX: unused as of now) */ 537 #define QD_DEFINED ((char) 1) /* queue group has been defined */ 538 #define QD_FORK 'f' /* fork queue runs */ 539 540 extern void filesys_update __P((void)); 541 #if _FFR_ANY_FREE_FS 542 extern bool filesys_free __P((long)); 543 #endif /* _FFR_ANY_FREE_FS */ 544 545 #if SASL 546 /* 547 ** SASL 548 */ 549 550 /* lines in authinfo file or index into SASL_AI_T */ 551 # define SASL_WRONG (-1) 552 # define SASL_USER 0 /* authorization id (user) */ 553 # define SASL_AUTHID 1 /* authentication id */ 554 # define SASL_PASSWORD 2 /* password fuer authid */ 555 # define SASL_DEFREALM 3 /* realm to use */ 556 # define SASL_MECHLIST 4 /* list of mechanisms to try */ 557 # define SASL_ID_REALM 5 /* authid@defrealm */ 558 559 /* 560 ** Current mechanism; this is just used to convey information between 561 ** invocation of SASL callback functions. 562 ** It must be last in the list, because it's not allocated by us 563 ** and hence we don't free() it. 564 */ 565 # define SASL_MECH 6 566 # define SASL_ENTRIES 7 /* number of entries in array */ 567 568 # define SASL_USER_BIT (1 << SASL_USER) 569 # define SASL_AUTHID_BIT (1 << SASL_AUTHID) 570 # define SASL_PASSWORD_BIT (1 << SASL_PASSWORD) 571 # define SASL_DEFREALM_BIT (1 << SASL_DEFREALM) 572 # define SASL_MECHLIST_BIT (1 << SASL_MECHLIST) 573 574 /* authenticated? */ 575 # define SASL_NOT_AUTH 0 /* not authenticated */ 576 # define SASL_PROC_AUTH 1 /* in process of authenticating */ 577 # define SASL_IS_AUTH 2 /* authenticated */ 578 579 /* SASL options */ 580 # define SASL_AUTH_AUTH 0x1000 /* use auth= only if authenticated */ 581 # if SASL >= 20101 582 # define SASL_SEC_MASK SASL_SEC_MAXIMUM /* mask for SASL_SEC_* values: sasl.h */ 583 # else /* SASL >= 20101 */ 584 # define SASL_SEC_MASK 0x0fff /* mask for SASL_SEC_* values: sasl.h */ 585 # if (SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 || \ 586 (SASL_SEC_NOACTIVE & SASL_SEC_MASK) == 0 || \ 587 (SASL_SEC_NODICTIONARY & SASL_SEC_MASK) == 0 || \ 588 (SASL_SEC_FORWARD_SECRECY & SASL_SEC_MASK) == 0 || \ 589 (SASL_SEC_NOANONYMOUS & SASL_SEC_MASK) == 0 || \ 590 (SASL_SEC_PASS_CREDENTIALS & SASL_SEC_MASK) == 0 591 ERROR: change SASL_SEC_MASK_ notify sendmail.org! 592 # endif /* SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 ... */ 593 # endif /* SASL >= 20101 */ 594 # define MAXOUTLEN 8192 /* length of output buffer */ 595 596 /* functions */ 597 extern char *intersect __P((char *, char *, SM_RPOOL_T *)); 598 extern char *iteminlist __P((char *, char *, char *)); 599 # if SASL >= 20000 600 extern int proxy_policy __P((sasl_conn_t *, void *, const char *, unsigned, const char *, unsigned, const char *, unsigned, struct propctx *)); 601 extern int safesaslfile __P((void *, const char *, sasl_verify_type_t)); 602 # else /* SASL >= 20000 */ 603 extern int proxy_policy __P((void *, const char *, const char *, const char **, const char **)); 604 # if SASL > 10515 605 extern int safesaslfile __P((void *, char *, int)); 606 # else /* SASL > 10515 */ 607 extern int safesaslfile __P((void *, char *)); 608 # endif /* SASL > 10515 */ 609 # endif /* SASL >= 20000 */ 610 extern void stop_sasl_client __P((void)); 611 612 /* structure to store authinfo */ 613 typedef char *SASL_AI_T[SASL_ENTRIES]; 614 615 EXTERN char *AuthMechanisms; /* AUTH mechanisms */ 616 EXTERN char *AuthRealm; /* AUTH realm */ 617 EXTERN char *SASLInfo; /* file with AUTH info */ 618 EXTERN int SASLOpts; /* options for SASL */ 619 EXTERN int MaxSLBits; /* max. encryption bits for SASL */ 620 #endif /* SASL */ 621 622 /* 623 ** Structure to store macros. 624 */ 625 typedef struct 626 { 627 SM_RPOOL_T *mac_rpool; /* resource pool */ 628 BITMAP256 mac_allocated; /* storage has been alloc()? */ 629 char *mac_table[MAXMACROID + 1]; /* macros */ 630 } MACROS_T; 631 632 EXTERN MACROS_T GlobalMacros; 633 634 /* 635 ** Information about currently open connections to mailers, or to 636 ** hosts that we have looked up recently. 637 */ 638 639 #define MCI struct mailer_con_info 640 641 MCI 642 { 643 unsigned long mci_flags; /* flag bits, see below */ 644 short mci_errno; /* error number on last connection */ 645 short mci_herrno; /* h_errno from last DNS lookup */ 646 short mci_exitstat; /* exit status from last connection */ 647 short mci_state; /* SMTP state */ 648 int mci_deliveries; /* delivery attempts for connection */ 649 long mci_maxsize; /* max size this server will accept */ 650 SM_FILE_T *mci_in; /* input side of connection */ 651 SM_FILE_T *mci_out; /* output side of connection */ 652 pid_t mci_pid; /* process id of subordinate proc */ 653 char *mci_phase; /* SMTP phase string */ 654 struct mailer *mci_mailer; /* ptr to the mailer for this conn */ 655 char *mci_host; /* host name */ 656 char *mci_status; /* DSN status to be copied to addrs */ 657 char *mci_rstatus; /* SMTP status to be copied to addrs */ 658 time_t mci_lastuse; /* last usage time */ 659 SM_FILE_T *mci_statfile; /* long term status file */ 660 char *mci_heloname; /* name to use as HELO arg */ 661 long mci_min_by; /* minimum DELIVERBY */ 662 bool mci_retryrcpt; /* tempfail for at least one rcpt */ 663 char *mci_tolist; /* list of valid recipients */ 664 SM_RPOOL_T *mci_rpool; /* resource pool */ 665 #if PIPELINING 666 int mci_okrcpts; /* number of valid recipients */ 667 ADDRESS *mci_nextaddr; /* next address for pipelined status */ 668 #endif /* PIPELINING */ 669 #if SASL 670 SASL_AI_T mci_sai; /* authentication info */ 671 bool mci_sasl_auth; /* authenticated? */ 672 int mci_sasl_string_len; 673 char *mci_sasl_string; /* sasl reply string */ 674 char *mci_saslcap; /* SASL list of mechanisms */ 675 sasl_conn_t *mci_conn; /* SASL connection */ 676 #endif /* SASL */ 677 #if STARTTLS 678 SSL *mci_ssl; /* SSL connection */ 679 #endif /* STARTTLS */ 680 MACROS_T mci_macro; /* macro definitions */ 681 }; 682 683 684 /* flag bits */ 685 #define MCIF_VALID 0x00000001 /* this entry is valid */ 686 /* 0x00000002 unused, was MCIF_TEMP */ 687 #define MCIF_CACHED 0x00000004 /* currently in open cache */ 688 #define MCIF_ESMTP 0x00000008 /* this host speaks ESMTP */ 689 #define MCIF_EXPN 0x00000010 /* EXPN command supported */ 690 #define MCIF_SIZE 0x00000020 /* SIZE option supported */ 691 #define MCIF_8BITMIME 0x00000040 /* BODY=8BITMIME supported */ 692 #define MCIF_7BIT 0x00000080 /* strip this message to 7 bits */ 693 /* 0x00000100 unused, was MCIF_MULTSTAT: MAIL11V3: handles MULT status */ 694 #define MCIF_INHEADER 0x00000200 /* currently outputing header */ 695 #define MCIF_CVT8TO7 0x00000400 /* convert from 8 to 7 bits */ 696 #define MCIF_DSN 0x00000800 /* DSN extension supported */ 697 #define MCIF_8BITOK 0x00001000 /* OK to send 8 bit characters */ 698 #define MCIF_CVT7TO8 0x00002000 /* convert from 7 to 8 bits */ 699 #define MCIF_INMIME 0x00004000 /* currently reading MIME header */ 700 #define MCIF_AUTH 0x00008000 /* AUTH= supported */ 701 #define MCIF_AUTHACT 0x00010000 /* SASL (AUTH) active */ 702 #define MCIF_ENHSTAT 0x00020000 /* ENHANCEDSTATUSCODES supported */ 703 #define MCIF_PIPELINED 0x00040000 /* PIPELINING supported */ 704 #define MCIF_VERB 0x00080000 /* VERB supported */ 705 #if STARTTLS 706 #define MCIF_TLS 0x00100000 /* STARTTLS supported */ 707 #define MCIF_TLSACT 0x00200000 /* STARTTLS active */ 708 #define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT | MCIF_TLS) 709 #else /* STARTTLS */ 710 #define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT) 711 #endif /* STARTTLS */ 712 #define MCIF_DLVR_BY 0x00400000 /* DELIVERBY */ 713 #if _FFR_IGNORE_EXT_ON_HELO 714 # define MCIF_HELO 0x00800000 /* we used HELO: ignore extensions */ 715 #endif /* _FFR_IGNORE_EXT_ON_HELO */ 716 #define MCIF_ONLY_EHLO 0x10000000 /* use only EHLO in smtpinit */ 717 718 /* states */ 719 #define MCIS_CLOSED 0 /* no traffic on this connection */ 720 #define MCIS_OPENING 1 /* sending initial protocol */ 721 #define MCIS_OPEN 2 /* open, initial protocol sent */ 722 #define MCIS_MAIL 3 /* MAIL command sent */ 723 #define MCIS_RCPT 4 /* RCPT commands being sent */ 724 #define MCIS_DATA 5 /* DATA command sent */ 725 #define MCIS_QUITING 6 /* running quit protocol */ 726 #define MCIS_SSD 7 /* service shutting down */ 727 #define MCIS_ERROR 8 /* I/O error on connection */ 728 729 /* functions */ 730 extern void mci_cache __P((MCI *)); 731 extern void mci_close __P((MCI *, char *where)); 732 extern void mci_dump __P((SM_FILE_T *, MCI *, bool)); 733 extern void mci_dump_all __P((SM_FILE_T *, bool)); 734 extern void mci_flush __P((bool, MCI *)); 735 extern MCI *mci_get __P((char *, MAILER *)); 736 extern int mci_lock_host __P((MCI *)); 737 extern bool mci_match __P((char *, MAILER *)); 738 extern int mci_print_persistent __P((char *, char *)); 739 extern int mci_purge_persistent __P((char *, char *)); 740 extern MCI **mci_scan __P((MCI *)); 741 extern void mci_setstat __P((MCI *, int, char *, char *)); 742 extern void mci_store_persistent __P((MCI *)); 743 extern int mci_traverse_persistent __P((int (*)(), char *)); 744 extern void mci_unlock_host __P((MCI *)); 745 746 EXTERN int MaxMciCache; /* maximum entries in MCI cache */ 747 EXTERN time_t MciCacheTimeout; /* maximum idle time on connections */ 748 EXTERN time_t MciInfoTimeout; /* how long 'til we retry down hosts */ 749 750 /* 751 ** Header structure. 752 ** This structure is used internally to store header items. 753 */ 754 755 struct header 756 { 757 char *h_field; /* the name of the field */ 758 char *h_value; /* the value of that field */ 759 struct header *h_link; /* the next header */ 760 unsigned char h_macro; /* include header if macro defined */ 761 unsigned long h_flags; /* status bits, see below */ 762 BITMAP256 h_mflags; /* m_flags bits needed */ 763 }; 764 765 typedef struct header HDR; 766 767 /* 768 ** Header information structure. 769 ** Defined in conf.c, this struct declares the header fields 770 ** that have some magic meaning. 771 */ 772 773 struct hdrinfo 774 { 775 char *hi_field; /* the name of the field */ 776 unsigned long hi_flags; /* status bits, see below */ 777 char *hi_ruleset; /* validity check ruleset */ 778 }; 779 780 extern struct hdrinfo HdrInfo[]; 781 782 /* bits for h_flags and hi_flags */ 783 #define H_EOH 0x00000001 /* field terminates header */ 784 #define H_RCPT 0x00000002 /* contains recipient addresses */ 785 #define H_DEFAULT 0x00000004 /* if another value is found, drop this */ 786 #define H_RESENT 0x00000008 /* this address is a "Resent-..." address */ 787 #define H_CHECK 0x00000010 /* check h_mflags against m_flags */ 788 #define H_ACHECK 0x00000020 /* ditto, but always (not just default) */ 789 #define H_FORCE 0x00000040 /* force this field, even if default */ 790 #define H_TRACE 0x00000080 /* this field contains trace information */ 791 #define H_FROM 0x00000100 /* this is a from-type field */ 792 #define H_VALID 0x00000200 /* this field has a validated value */ 793 #define H_RECEIPTTO 0x00000400 /* field has return receipt info */ 794 #define H_ERRORSTO 0x00000800 /* field has error address info */ 795 #define H_CTE 0x00001000 /* field is a content-transfer-encoding */ 796 #define H_CTYPE 0x00002000 /* this is a content-type field */ 797 #define H_BCC 0x00004000 /* Bcc: header: strip value or delete */ 798 #define H_ENCODABLE 0x00008000 /* field can be RFC 1522 encoded */ 799 #define H_STRIPCOMM 0x00010000 /* header check: strip comments */ 800 #define H_BINDLATE 0x00020000 /* only expand macros at deliver */ 801 #define H_USER 0x00040000 /* header came from the user/SMTP */ 802 803 /* bits for chompheader() */ 804 #define CHHDR_DEF 0x0001 /* default header */ 805 #define CHHDR_CHECK 0x0002 /* call ruleset for header */ 806 #define CHHDR_USER 0x0004 /* header from user */ 807 #define CHHDR_QUEUE 0x0008 /* header from queue file */ 808 809 /* functions */ 810 extern void addheader __P((char *, char *, int, ENVELOPE *)); 811 extern unsigned long chompheader __P((char *, int, HDR **, ENVELOPE *)); 812 extern void commaize __P((HDR *, char *, bool, MCI *, ENVELOPE *)); 813 extern HDR *copyheader __P((HDR *, SM_RPOOL_T *)); 814 extern void eatheader __P((ENVELOPE *, bool, bool)); 815 extern char *hvalue __P((char *, HDR *)); 816 extern void insheader __P((int, char *, char *, int, ENVELOPE *)); 817 extern bool isheader __P((char *)); 818 extern void putfromline __P((MCI *, ENVELOPE *)); 819 extern void setupheaders __P((void)); 820 821 /* 822 ** Performance monitoring 823 */ 824 825 #define TIMERS struct sm_timers 826 827 TIMERS 828 { 829 TIMER ti_overall; /* the whole process */ 830 }; 831 832 833 #define PUSHTIMER(l, t) { if (tTd(98, l)) pushtimer(&t); } 834 #define POPTIMER(l, t) { if (tTd(98, l)) poptimer(&t); } 835 836 /* 837 ** Envelope structure. 838 ** This structure defines the message itself. There is usually 839 ** only one of these -- for the message that we originally read 840 ** and which is our primary interest -- but other envelopes can 841 ** be generated during processing. For example, error messages 842 ** will have their own envelope. 843 */ 844 845 struct envelope 846 { 847 HDR *e_header; /* head of header list */ 848 long e_msgpriority; /* adjusted priority of this message */ 849 time_t e_ctime; /* time message appeared in the queue */ 850 char *e_to; /* (list of) target person(s) */ 851 ADDRESS e_from; /* the person it is from */ 852 char *e_sender; /* e_from.q_paddr w comments stripped */ 853 char **e_fromdomain; /* the domain part of the sender */ 854 ADDRESS *e_sendqueue; /* list of message recipients */ 855 ADDRESS *e_errorqueue; /* the queue for error responses */ 856 857 /* 858 ** Overflow detection is based on < 0, so don't change this 859 ** to unsigned. We don't use unsigned and == ULONG_MAX because 860 ** some libc's don't have strtoul(), see mail_esmtp_args(). 861 */ 862 863 long e_msgsize; /* size of the message in bytes */ 864 char *e_msgid; /* message id (for logging) */ 865 unsigned long e_flags; /* flags, see below */ 866 int e_nrcpts; /* number of recipients */ 867 short e_class; /* msg class (priority, junk, etc.) */ 868 short e_hopcount; /* number of times processed */ 869 short e_nsent; /* number of sends since checkpoint */ 870 short e_sendmode; /* message send mode */ 871 short e_errormode; /* error return mode */ 872 short e_timeoutclass; /* message timeout class */ 873 void (*e_puthdr)__P((MCI *, HDR *, ENVELOPE *, int)); 874 /* function to put header of message */ 875 void (*e_putbody)__P((MCI *, ENVELOPE *, char *)); 876 /* function to put body of message */ 877 ENVELOPE *e_parent; /* the message this one encloses */ 878 ENVELOPE *e_sibling; /* the next envelope of interest */ 879 char *e_bodytype; /* type of message body */ 880 SM_FILE_T *e_dfp; /* data file */ 881 char *e_id; /* code for this entry in queue */ 882 int e_qgrp; /* queue group (index into queues) */ 883 int e_qdir; /* index into queue directories */ 884 int e_dfqgrp; /* data file queue group index */ 885 int e_dfqdir; /* data file queue directory index */ 886 int e_xfqgrp; /* queue group (index into queues) */ 887 int e_xfqdir; /* index into queue directories (xf) */ 888 SM_FILE_T *e_xfp; /* transcript file */ 889 SM_FILE_T *e_lockfp; /* the lock file for this message */ 890 char *e_message; /* error message; readonly; NULL, or 891 * static storage, or allocated from 892 * e_rpool */ 893 char *e_statmsg; /* stat msg (changes per delivery). 894 * readonly. NULL or allocated from 895 * e_rpool. */ 896 char *e_quarmsg; /* why envelope is quarantined */ 897 char e_qfletter; /* queue file letter on disk */ 898 char *e_msgboundary; /* MIME-style message part boundary */ 899 char *e_origrcpt; /* original recipient (one only) */ 900 char *e_envid; /* envelope id from MAIL FROM: line */ 901 char *e_status; /* DSN status for this message */ 902 time_t e_dtime; /* time of last delivery attempt */ 903 int e_ntries; /* number of delivery attempts */ 904 dev_t e_dfdev; /* data file device (crash recovery) */ 905 ino_t e_dfino; /* data file inode (crash recovery) */ 906 MACROS_T e_macro; /* macro definitions */ 907 MCI *e_mci; /* connection info */ 908 char *e_auth_param; /* readonly; NULL or static storage or 909 * allocated from e_rpool */ 910 TIMERS e_timers; /* per job timers */ 911 long e_deliver_by; /* deliver by */ 912 int e_dlvr_flag; /* deliver by flag */ 913 SM_RPOOL_T *e_rpool; /* resource pool for this envelope */ 914 }; 915 916 /* values for e_flags */ 917 #define EF_OLDSTYLE 0x00000001L /* use spaces (not commas) in hdrs */ 918 #define EF_INQUEUE 0x00000002L /* this message is fully queued */ 919 #define EF_NO_BODY_RETN 0x00000004L /* omit message body on error */ 920 #define EF_CLRQUEUE 0x00000008L /* disk copy is no longer needed */ 921 #define EF_SENDRECEIPT 0x00000010L /* send a return receipt */ 922 #define EF_FATALERRS 0x00000020L /* fatal errors occurred */ 923 #define EF_DELETE_BCC 0x00000040L /* delete Bcc: headers entirely */ 924 #define EF_RESPONSE 0x00000080L /* this is an error or return receipt */ 925 #define EF_RESENT 0x00000100L /* this message is being forwarded */ 926 #define EF_VRFYONLY 0x00000200L /* verify only (don't expand aliases) */ 927 #define EF_WARNING 0x00000400L /* warning message has been sent */ 928 #define EF_QUEUERUN 0x00000800L /* this envelope is from queue */ 929 #define EF_GLOBALERRS 0x00001000L /* treat errors as global */ 930 #define EF_PM_NOTIFY 0x00002000L /* send return mail to postmaster */ 931 #define EF_METOO 0x00004000L /* send to me too */ 932 #define EF_LOGSENDER 0x00008000L /* need to log the sender */ 933 #define EF_NORECEIPT 0x00010000L /* suppress all return-receipts */ 934 #define EF_HAS8BIT 0x00020000L /* at least one 8-bit char in body */ 935 #define EF_NL_NOT_EOL 0x00040000L /* don't accept raw NL as EOLine */ 936 #define EF_CRLF_NOT_EOL 0x00080000L /* don't accept CR-LF as EOLine */ 937 #define EF_RET_PARAM 0x00100000L /* RCPT command had RET argument */ 938 #define EF_HAS_DF 0x00200000L /* set when data file is instantiated */ 939 #define EF_IS_MIME 0x00400000L /* really is a MIME message */ 940 #define EF_DONT_MIME 0x00800000L /* never MIME this message */ 941 #define EF_DISCARD 0x01000000L /* discard the message */ 942 #define EF_TOOBIG 0x02000000L /* message is too big */ 943 #define EF_SPLIT 0x04000000L /* envelope has been split */ 944 #define EF_UNSAFE 0x08000000L /* unsafe: read from untrusted source */ 945 946 #define DLVR_NOTIFY 0x01 947 #define DLVR_RETURN 0x02 948 #define DLVR_TRACE 0x10 949 #define IS_DLVR_NOTIFY(e) (((e)->e_dlvr_flag & DLVR_NOTIFY) != 0) 950 #define IS_DLVR_RETURN(e) (((e)->e_dlvr_flag & DLVR_RETURN) != 0) 951 #define IS_DLVR_TRACE(e) (((e)->e_dlvr_flag & DLVR_TRACE) != 0) 952 #define IS_DLVR_BY(e) ((e)->e_dlvr_flag != 0) 953 954 #define BODYTYPE_NONE (0) 955 #define BODYTYPE_7BIT (1) 956 #define BODYTYPE_8BITMIME (2) 957 #define BODYTYPE_ILLEGAL (-1) 958 #define BODYTYPE_VALID(b) ((b) == BODYTYPE_7BIT || (b) == BODYTYPE_8BITMIME) 959 960 extern ENVELOPE BlankEnvelope; 961 962 /* functions */ 963 extern void clearenvelope __P((ENVELOPE *, bool, SM_RPOOL_T *)); 964 extern void dropenvelope __P((ENVELOPE *, bool, bool)); 965 extern ENVELOPE *newenvelope __P((ENVELOPE *, ENVELOPE *, SM_RPOOL_T *)); 966 extern void clrsessenvelope __P((ENVELOPE *)); 967 extern void printenvflags __P((ENVELOPE *)); 968 extern void putbody __P((MCI *, ENVELOPE *, char *)); 969 extern void putheader __P((MCI *, HDR *, ENVELOPE *, int)); 970 971 /* 972 ** Message priority classes. 973 ** 974 ** The message class is read directly from the Priority: header 975 ** field in the message. 976 ** 977 ** CurEnv->e_msgpriority is the number of bytes in the message plus 978 ** the creation time (so that jobs ``tend'' to be ordered correctly), 979 ** adjusted by the message class, the number of recipients, and the 980 ** amount of time the message has been sitting around. This number 981 ** is used to order the queue. Higher values mean LOWER priority. 982 ** 983 ** Each priority class point is worth WkClassFact priority points; 984 ** each recipient is worth WkRecipFact priority points. Each time 985 ** we reprocess a message the priority is adjusted by WkTimeFact. 986 ** WkTimeFact should normally decrease the priority so that jobs 987 ** that have historically failed will be run later; thanks go to 988 ** Jay Lepreau at Utah for pointing out the error in my thinking. 989 ** 990 ** The "class" is this number, unadjusted by the age or size of 991 ** this message. Classes with negative representations will have 992 ** error messages thrown away if they are not local. 993 */ 994 995 struct priority 996 { 997 char *pri_name; /* external name of priority */ 998 int pri_val; /* internal value for same */ 999 }; 1000 1001 EXTERN int NumPriorities; /* pointer into Priorities */ 1002 EXTERN struct priority Priorities[MAXPRIORITIES]; 1003 1004 /* 1005 ** Rewrite rules. 1006 */ 1007 1008 struct rewrite 1009 { 1010 char **r_lhs; /* pattern match */ 1011 char **r_rhs; /* substitution value */ 1012 struct rewrite *r_next;/* next in chain */ 1013 int r_line; /* rule line in sendmail.cf */ 1014 }; 1015 1016 /* 1017 ** Special characters in rewriting rules. 1018 ** These are used internally only. 1019 ** The COND* rules are actually used in macros rather than in 1020 ** rewriting rules, but are given here because they 1021 ** cannot conflict. 1022 */ 1023 1024 /* left hand side items */ 1025 #define MATCHZANY ((unsigned char)0220) /* match zero or more tokens */ 1026 #define MATCHANY ((unsigned char)0221) /* match one or more tokens */ 1027 #define MATCHONE ((unsigned char)0222) /* match exactly one token */ 1028 #define MATCHCLASS ((unsigned char)0223) /* match one token in a class */ 1029 #define MATCHNCLASS ((unsigned char)0224) /* match anything not in class */ 1030 #define MATCHREPL ((unsigned char)0225) /* replacement on RHS for above */ 1031 1032 /* right hand side items */ 1033 #define CANONNET ((unsigned char)0226) /* canonical net, next token */ 1034 #define CANONHOST ((unsigned char)0227) /* canonical host, next token */ 1035 #define CANONUSER ((unsigned char)0230) /* canonical user, next N tokens */ 1036 #define CALLSUBR ((unsigned char)0231) /* call another rewriting set */ 1037 1038 /* conditionals in macros */ 1039 #define CONDIF ((unsigned char)0232) /* conditional if-then */ 1040 #define CONDELSE ((unsigned char)0233) /* conditional else */ 1041 #define CONDFI ((unsigned char)0234) /* conditional fi */ 1042 1043 /* bracket characters for host name lookup */ 1044 #define HOSTBEGIN ((unsigned char)0235) /* hostname lookup begin */ 1045 #define HOSTEND ((unsigned char)0236) /* hostname lookup end */ 1046 1047 /* bracket characters for generalized lookup */ 1048 #define LOOKUPBEGIN ((unsigned char)0205) /* generalized lookup begin */ 1049 #define LOOKUPEND ((unsigned char)0206) /* generalized lookup end */ 1050 1051 /* macro substitution character */ 1052 #define MACROEXPAND ((unsigned char)0201) /* macro expansion */ 1053 #define MACRODEXPAND ((unsigned char)0202) /* deferred macro expansion */ 1054 1055 /* to make the code clearer */ 1056 #define MATCHZERO CANONHOST 1057 1058 #define MAXMATCH 9 /* max params per rewrite */ 1059 #define MAX_MAP_ARGS 10 /* max arguments for map */ 1060 1061 /* external <==> internal mapping table */ 1062 struct metamac 1063 { 1064 char metaname; /* external code (after $) */ 1065 unsigned char metaval; /* internal code (as above) */ 1066 }; 1067 1068 /* values for macros with external names only */ 1069 #define MID_OPMODE 0202 /* operation mode */ 1070 1071 /* functions */ 1072 #if SM_HEAP_CHECK 1073 extern void 1074 macdefine_tagged __P(( 1075 MACROS_T *_mac, 1076 ARGCLASS_T _vclass, 1077 int _id, 1078 char *_value, 1079 char *_file, 1080 int _line, 1081 int _group)); 1082 # define macdefine(mac,c,id,v) \ 1083 macdefine_tagged(mac,c,id,v,__FILE__,__LINE__,sm_heap_group()) 1084 #else /* SM_HEAP_CHECK */ 1085 extern void 1086 macdefine __P(( 1087 MACROS_T *_mac, 1088 ARGCLASS_T _vclass, 1089 int _id, 1090 char *_value)); 1091 # define macdefine_tagged(mac,c,id,v,file,line,grp) macdefine(mac,c,id,v) 1092 #endif /* SM_HEAP_CHECK */ 1093 extern void macset __P((MACROS_T *, int, char *)); 1094 #define macget(mac, i) (mac)->mac_table[i] 1095 extern void expand __P((char *, char *, size_t, ENVELOPE *)); 1096 extern int macid_parse __P((char *, char **)); 1097 #define macid(name) macid_parse(name, NULL) 1098 extern char *macname __P((int)); 1099 extern char *macvalue __P((int, ENVELOPE *)); 1100 extern int rscheck __P((char *, char *, char *, ENVELOPE *, int, int, char *, char *)); 1101 extern int rscap __P((char *, char *, char *, ENVELOPE *, char ***, char *, int)); 1102 extern void setclass __P((int, char *)); 1103 extern int strtorwset __P((char *, char **, int)); 1104 extern void translate_dollars __P((char *)); 1105 extern bool wordinclass __P((char *, int)); 1106 1107 /* 1108 ** Name canonification short circuit. 1109 ** 1110 ** If the name server for a host is down, the process of trying to 1111 ** canonify the name can hang. This is similar to (but alas, not 1112 ** identical to) looking up the name for delivery. This stab type 1113 ** caches the result of the name server lookup so we don't hang 1114 ** multiple times. 1115 */ 1116 1117 #define NAMECANON struct _namecanon 1118 1119 NAMECANON 1120 { 1121 short nc_errno; /* cached errno */ 1122 short nc_herrno; /* cached h_errno */ 1123 short nc_stat; /* cached exit status code */ 1124 short nc_flags; /* flag bits */ 1125 char *nc_cname; /* the canonical name */ 1126 time_t nc_exp; /* entry expires at */ 1127 }; 1128 1129 /* values for nc_flags */ 1130 #define NCF_VALID 0x0001 /* entry valid */ 1131 1132 /* hostsignature structure */ 1133 1134 struct hostsig_t 1135 { 1136 char *hs_sig; /* hostsignature */ 1137 time_t hs_exp; /* entry expires at */ 1138 }; 1139 1140 typedef struct hostsig_t HOSTSIG_T; 1141 1142 /* functions */ 1143 extern bool getcanonname __P((char *, int, bool, int *)); 1144 extern int getmxrr __P((char *, char **, unsigned short *, bool, int *, bool, int *)); 1145 extern char *hostsignature __P((MAILER *, char *)); 1146 extern int getfallbackmxrr __P((char *)); 1147 1148 /* 1149 ** Mapping functions 1150 ** 1151 ** These allow arbitrary mappings in the config file. The idea 1152 ** (albeit not the implementation) comes from IDA sendmail. 1153 */ 1154 1155 #define MAPCLASS struct _mapclass 1156 #define MAP struct _map 1157 #define MAXMAPACTIONS 5 /* size of map_actions array */ 1158 1159 1160 /* 1161 ** An actual map. 1162 */ 1163 1164 MAP 1165 { 1166 MAPCLASS *map_class; /* the class of this map */ 1167 MAPCLASS *map_orgclass; /* the original class of this map */ 1168 char *map_mname; /* name of this map */ 1169 long map_mflags; /* flags, see below */ 1170 char *map_file; /* the (nominal) filename */ 1171 ARBPTR_T map_db1; /* the open database ptr */ 1172 ARBPTR_T map_db2; /* an "extra" database pointer */ 1173 char *map_keycolnm; /* key column name */ 1174 char *map_valcolnm; /* value column name */ 1175 unsigned char map_keycolno; /* key column number */ 1176 unsigned char map_valcolno; /* value column number */ 1177 char map_coldelim; /* column delimiter */ 1178 char map_spacesub; /* spacesub */ 1179 char *map_app; /* to append to successful matches */ 1180 char *map_tapp; /* to append to "tempfail" matches */ 1181 char *map_domain; /* the (nominal) NIS domain */ 1182 char *map_rebuild; /* program to run to do auto-rebuild */ 1183 time_t map_mtime; /* last database modification time */ 1184 time_t map_timeout; /* timeout for map accesses */ 1185 int map_retry; /* # of retries for map accesses */ 1186 pid_t map_pid; /* PID of process which opened map */ 1187 int map_lockfd; /* auxiliary lock file descriptor */ 1188 short map_specificity; /* specificity of aliases */ 1189 MAP *map_stack[MAXMAPSTACK]; /* list for stacked maps */ 1190 short map_return[MAXMAPACTIONS]; /* return bitmaps for stacked maps */ 1191 }; 1192 1193 1194 /* bit values for map_mflags */ 1195 #define MF_VALID 0x00000001 /* this entry is valid */ 1196 #define MF_INCLNULL 0x00000002 /* include null byte in key */ 1197 #define MF_OPTIONAL 0x00000004 /* don't complain if map not found */ 1198 #define MF_NOFOLDCASE 0x00000008 /* don't fold case in keys */ 1199 #define MF_MATCHONLY 0x00000010 /* don't use the map value */ 1200 #define MF_OPEN 0x00000020 /* this entry is open */ 1201 #define MF_WRITABLE 0x00000040 /* open for writing */ 1202 #define MF_ALIAS 0x00000080 /* this is an alias file */ 1203 #define MF_TRY0NULL 0x00000100 /* try with no null byte */ 1204 #define MF_TRY1NULL 0x00000200 /* try with the null byte */ 1205 #define MF_LOCKED 0x00000400 /* this map is currently locked */ 1206 #define MF_ALIASWAIT 0x00000800 /* alias map in aliaswait state */ 1207 #define MF_IMPL_HASH 0x00001000 /* implicit: underlying hash database */ 1208 #define MF_IMPL_NDBM 0x00002000 /* implicit: underlying NDBM database */ 1209 /* 0x00004000 */ 1210 #define MF_APPEND 0x00008000 /* append new entry on rebuild */ 1211 #define MF_KEEPQUOTES 0x00010000 /* don't dequote key before lookup */ 1212 #define MF_NODEFER 0x00020000 /* don't defer if map lookup fails */ 1213 #define MF_REGEX_NOT 0x00040000 /* regular expression negation */ 1214 #define MF_DEFER 0x00080000 /* don't lookup map in defer mode */ 1215 #define MF_SINGLEMATCH 0x00100000 /* successful only if match one key */ 1216 /* 0x00200000 available for use */ 1217 #define MF_FILECLASS 0x00400000 /* this is a file class map */ 1218 #define MF_OPENBOGUS 0x00800000 /* open failed, don't call map_close */ 1219 #define MF_CLOSING 0x01000000 /* map is being closed */ 1220 1221 #define DYNOPENMAP(map) if (!bitset(MF_OPEN, (map)->map_mflags)) \ 1222 { \ 1223 if (!openmap(map)) \ 1224 return NULL; \ 1225 } 1226 1227 1228 /* indices for map_actions */ 1229 #define MA_NOTFOUND 0 /* member map returned "not found" */ 1230 #define MA_UNAVAIL 1 /* member map is not available */ 1231 #define MA_TRYAGAIN 2 /* member map returns temp failure */ 1232 1233 /* macros to handle MapTempFail */ 1234 #define BIT_IS_MTP 0x01 /* temp.failure occurred */ 1235 #define BIT_ASK_MTP 0x02 /* do we care about MapTempFail? */ 1236 #define RESET_MAPTEMPFAIL MapTempFail = 0 1237 #define INIT_MAPTEMPFAIL MapTempFail = BIT_ASK_MTP 1238 #define SET_MAPTEMPFAIL MapTempFail |= BIT_IS_MTP 1239 #define IS_MAPTEMPFAIL bitset(BIT_IS_MTP, MapTempFail) 1240 #define ASK_MAPTEMPFAIL bitset(BIT_ASK_MTP, MapTempFail) 1241 1242 /* 1243 ** The class of a map -- essentially the functions to call 1244 */ 1245 1246 MAPCLASS 1247 { 1248 char *map_cname; /* name of this map class */ 1249 char *map_ext; /* extension for database file */ 1250 short map_cflags; /* flag bits, see below */ 1251 bool (*map_parse)__P((MAP *, char *)); 1252 /* argument parsing function */ 1253 char *(*map_lookup)__P((MAP *, char *, char **, int *)); 1254 /* lookup function */ 1255 void (*map_store)__P((MAP *, char *, char *)); 1256 /* store function */ 1257 bool (*map_open)__P((MAP *, int)); 1258 /* open function */ 1259 void (*map_close)__P((MAP *)); 1260 /* close function */ 1261 }; 1262 1263 /* bit values for map_cflags */ 1264 #define MCF_ALIASOK 0x0001 /* can be used for aliases */ 1265 #define MCF_ALIASONLY 0x0002 /* usable only for aliases */ 1266 #define MCF_REBUILDABLE 0x0004 /* can rebuild alias files */ 1267 #define MCF_OPTFILE 0x0008 /* file name is optional */ 1268 #define MCF_NOTPERSIST 0x0010 /* don't keep map open all the time */ 1269 1270 /* functions */ 1271 extern void closemaps __P((bool)); 1272 extern bool impl_map_open __P((MAP *, int)); 1273 extern void initmaps __P((void)); 1274 extern MAP *makemapentry __P((char *)); 1275 extern void maplocaluser __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1276 extern char *map_rewrite __P((MAP *, const char *, size_t, char **)); 1277 #if NETINFO 1278 extern char *ni_propval __P((char *, char *, char *, char *, int)); 1279 #endif /* NETINFO */ 1280 extern bool openmap __P((MAP *)); 1281 #if USERDB 1282 extern void _udbx_close __P((void)); 1283 extern int udbexpand __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1284 extern char *udbsender __P((char *, SM_RPOOL_T *)); 1285 #endif /* USERDB */ 1286 1287 /* 1288 ** LDAP related items 1289 */ 1290 #if LDAPMAP 1291 /* struct defining LDAP Auth Methods */ 1292 struct lamvalues 1293 { 1294 char *lam_name; /* name of LDAP auth method */ 1295 int lam_code; /* numeric code */ 1296 }; 1297 1298 /* struct defining LDAP Alias Dereferencing */ 1299 struct ladvalues 1300 { 1301 char *lad_name; /* name of LDAP alias dereferencing method */ 1302 int lad_code; /* numeric code */ 1303 }; 1304 1305 /* struct defining LDAP Search Scope */ 1306 struct lssvalues 1307 { 1308 char *lss_name; /* name of LDAP search scope */ 1309 int lss_code; /* numeric code */ 1310 }; 1311 1312 /* functions */ 1313 extern bool ldapmap_parseargs __P((MAP *, char *)); 1314 extern void ldapmap_set_defaults __P((char *)); 1315 #endif /* LDAPMAP */ 1316 1317 /* 1318 ** PH related items 1319 */ 1320 1321 #if PH_MAP 1322 1323 # include <phclient.h> 1324 1325 struct ph_map_struct 1326 { 1327 char *ph_servers; /* list of ph servers */ 1328 char *ph_field_list; /* list of fields to search for match */ 1329 PH *ph; /* PH server handle */ 1330 int ph_fastclose; /* send "quit" command on close */ 1331 time_t ph_timeout; /* timeout interval */ 1332 }; 1333 typedef struct ph_map_struct PH_MAP_STRUCT; 1334 1335 #endif /* PH_MAP */ 1336 1337 /* 1338 ** Regular UNIX sockaddrs are too small to handle ISO addresses, so 1339 ** we are forced to declare a supertype here. 1340 */ 1341 1342 #if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 1343 union bigsockaddr 1344 { 1345 struct sockaddr sa; /* general version */ 1346 # if NETUNIX 1347 struct sockaddr_un sunix; /* UNIX family */ 1348 # endif /* NETUNIX */ 1349 # if NETINET 1350 struct sockaddr_in sin; /* INET family */ 1351 # endif /* NETINET */ 1352 # if NETINET6 1353 struct sockaddr_in6 sin6; /* INET/IPv6 */ 1354 # endif /* NETINET6 */ 1355 # if NETISO 1356 struct sockaddr_iso siso; /* ISO family */ 1357 # endif /* NETISO */ 1358 # if NETNS 1359 struct sockaddr_ns sns; /* XNS family */ 1360 # endif /* NETNS */ 1361 # if NETX25 1362 struct sockaddr_x25 sx25; /* X.25 family */ 1363 # endif /* NETX25 */ 1364 }; 1365 1366 # define SOCKADDR union bigsockaddr 1367 1368 /* functions */ 1369 extern char *anynet_ntoa __P((SOCKADDR *)); 1370 # if NETINET6 1371 extern char *anynet_ntop __P((struct in6_addr *, char *, size_t)); 1372 extern int anynet_pton __P((int, const char *, void *)); 1373 # endif /* NETINET6 */ 1374 extern char *hostnamebyanyaddr __P((SOCKADDR *)); 1375 extern char *validate_connection __P((SOCKADDR *, char *, ENVELOPE *)); 1376 # if SASL >= 20000 1377 extern bool iptostring __P((SOCKADDR *, SOCKADDR_LEN_T, char *, unsigned)); 1378 # endif /* SASL >= 20000 */ 1379 1380 #endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */ 1381 1382 /* 1383 ** Process List (proclist) 1384 */ 1385 1386 #define NO_PID ((pid_t) 0) 1387 #ifndef PROC_LIST_SEG 1388 # define PROC_LIST_SEG 32 /* number of pids to alloc at a time */ 1389 #endif /* ! PROC_LIST_SEG */ 1390 1391 /* process types */ 1392 #define PROC_NONE 0 1393 #define PROC_DAEMON 1 1394 #define PROC_DAEMON_CHILD 2 1395 #define PROC_QUEUE 3 1396 #define PROC_QUEUE_CHILD 3 1397 #define PROC_CONTROL 4 1398 #define PROC_CONTROL_CHILD 5 1399 1400 /* functions */ 1401 extern void proc_list_add __P((pid_t, char *, int, int, int, SOCKADDR *)); 1402 extern void proc_list_clear __P((void)); 1403 extern void proc_list_display __P((SM_FILE_T *, char *)); 1404 extern void proc_list_drop __P((pid_t, int, int *)); 1405 extern void proc_list_probe __P((void)); 1406 extern void proc_list_set __P((pid_t, char *)); 1407 extern void proc_list_signal __P((int, int)); 1408 1409 /* 1410 ** Symbol table definitions 1411 */ 1412 1413 struct symtab 1414 { 1415 char *s_name; /* name to be entered */ 1416 short s_symtype; /* general type (see below) */ 1417 struct symtab *s_next; /* pointer to next in chain */ 1418 union 1419 { 1420 BITMAP256 sv_class; /* bit-map of word classes */ 1421 ADDRESS *sv_addr; /* pointer to address header */ 1422 MAILER *sv_mailer; /* pointer to mailer */ 1423 char *sv_alias; /* alias */ 1424 MAPCLASS sv_mapclass; /* mapping function class */ 1425 MAP sv_map; /* mapping function */ 1426 HOSTSIG_T sv_hostsig; /* host signature */ 1427 MCI sv_mci; /* mailer connection info */ 1428 NAMECANON sv_namecanon; /* canonical name cache */ 1429 int sv_macro; /* macro name => id mapping */ 1430 int sv_ruleset; /* ruleset index */ 1431 struct hdrinfo sv_header; /* header metainfo */ 1432 char *sv_service[MAXMAPSTACK]; /* service switch */ 1433 #if LDAPMAP 1434 MAP *sv_lmap; /* Maps for LDAP connection */ 1435 #endif /* LDAPMAP */ 1436 #if SOCKETMAP 1437 MAP *sv_socketmap; /* Maps for SOCKET connection */ 1438 #endif /* SOCKETMAP */ 1439 #if MILTER 1440 struct milter *sv_milter; /* milter filter name */ 1441 #endif /* MILTER */ 1442 QUEUEGRP *sv_queue; /* pointer to queue */ 1443 } s_value; 1444 }; 1445 1446 typedef struct symtab STAB; 1447 1448 /* symbol types */ 1449 #define ST_UNDEF 0 /* undefined type */ 1450 #define ST_CLASS 1 /* class map */ 1451 #define ST_ADDRESS 2 /* an address in parsed format */ 1452 #define ST_MAILER 3 /* a mailer header */ 1453 #define ST_ALIAS 4 /* an alias */ 1454 #define ST_MAPCLASS 5 /* mapping function class */ 1455 #define ST_MAP 6 /* mapping function */ 1456 #define ST_HOSTSIG 7 /* host signature */ 1457 #define ST_NAMECANON 8 /* cached canonical name */ 1458 #define ST_MACRO 9 /* macro name to id mapping */ 1459 #define ST_RULESET 10 /* ruleset index */ 1460 #define ST_SERVICE 11 /* service switch entry */ 1461 #define ST_HEADER 12 /* special header flags */ 1462 #if LDAPMAP 1463 # define ST_LMAP 13 /* List head of maps for LDAP connection */ 1464 #endif /* LDAPMAP */ 1465 #if MILTER 1466 # define ST_MILTER 14 /* milter filter */ 1467 #endif /* MILTER */ 1468 #define ST_QUEUE 15 /* a queue entry */ 1469 1470 #if SOCKETMAP 1471 # define ST_SOCKETMAP 16 /* List head of maps for SOCKET connection */ 1472 #endif /* SOCKETMAP */ 1473 1474 /* This entry must be last */ 1475 #define ST_MCI 17 /* mailer connection info (offset) */ 1476 1477 #define s_class s_value.sv_class 1478 #define s_address s_value.sv_addr 1479 #define s_mailer s_value.sv_mailer 1480 #define s_alias s_value.sv_alias 1481 #define s_mci s_value.sv_mci 1482 #define s_mapclass s_value.sv_mapclass 1483 #define s_hostsig s_value.sv_hostsig 1484 #define s_map s_value.sv_map 1485 #define s_namecanon s_value.sv_namecanon 1486 #define s_macro s_value.sv_macro 1487 #define s_ruleset s_value.sv_ruleset 1488 #define s_service s_value.sv_service 1489 #define s_header s_value.sv_header 1490 #if LDAPMAP 1491 # define s_lmap s_value.sv_lmap 1492 #endif /* LDAPMAP */ 1493 #if SOCKETMAP 1494 # define s_socketmap s_value.sv_socketmap 1495 #endif /* SOCKETMAP */ 1496 #if MILTER 1497 # define s_milter s_value.sv_milter 1498 #endif /* MILTER */ 1499 #define s_quegrp s_value.sv_queue 1500 1501 /* opcodes to stab */ 1502 #define ST_FIND 0 /* find entry */ 1503 #define ST_ENTER 1 /* enter if not there */ 1504 1505 /* functions */ 1506 extern STAB *stab __P((char *, int, int)); 1507 extern void stabapply __P((void (*)(STAB *, int), int)); 1508 1509 /* 1510 ** Operation, send, error, and MIME modes 1511 ** 1512 ** The operation mode describes the basic operation of sendmail. 1513 ** This can be set from the command line, and is "send mail" by 1514 ** default. 1515 ** 1516 ** The send mode tells how to send mail. It can be set in the 1517 ** configuration file. Its setting determines how quickly the 1518 ** mail will be delivered versus the load on your system. If the 1519 ** -v (verbose) flag is given, it will be forced to SM_DELIVER 1520 ** mode. 1521 ** 1522 ** The error mode tells how to return errors. 1523 */ 1524 1525 #define MD_DELIVER 'm' /* be a mail sender */ 1526 #define MD_SMTP 's' /* run SMTP on standard input */ 1527 #define MD_ARPAFTP 'a' /* obsolete ARPANET mode (Grey Book) */ 1528 #define MD_DAEMON 'd' /* run as a daemon */ 1529 #define MD_FGDAEMON 'D' /* run daemon in foreground */ 1530 #define MD_VERIFY 'v' /* verify: don't collect or deliver */ 1531 #define MD_TEST 't' /* test mode: resolve addrs only */ 1532 #define MD_INITALIAS 'i' /* initialize alias database */ 1533 #define MD_PRINT 'p' /* print the queue */ 1534 #define MD_PRINTNQE 'P' /* print number of entries in queue */ 1535 #define MD_FREEZE 'z' /* freeze the configuration file */ 1536 #define MD_HOSTSTAT 'h' /* print persistent host stat info */ 1537 #define MD_PURGESTAT 'H' /* purge persistent host stat info */ 1538 #define MD_QUEUERUN 'q' /* queue run */ 1539 1540 /* Note: see also include/sendmail/pathnames.h: GET_CLIENT_CF */ 1541 1542 /* values for e_sendmode -- send modes */ 1543 #define SM_DELIVER 'i' /* interactive delivery */ 1544 #define SM_FORK 'b' /* deliver in background */ 1545 #define SM_QUEUE 'q' /* queue, don't deliver */ 1546 #define SM_DEFER 'd' /* defer map lookups as well as queue */ 1547 #define SM_VERIFY 'v' /* verify only (used internally) */ 1548 1549 #define WILL_BE_QUEUED(m) ((m) == SM_QUEUE || (m) == SM_DEFER) 1550 1551 /* used only as a parameter to sendall */ 1552 #define SM_DEFAULT '\0' /* unspecified, use SendMode */ 1553 1554 /* functions */ 1555 extern void set_delivery_mode __P((int, ENVELOPE *)); 1556 1557 /* values for e_errormode -- error handling modes */ 1558 #define EM_PRINT 'p' /* print errors */ 1559 #define EM_MAIL 'm' /* mail back errors */ 1560 #define EM_WRITE 'w' /* write back errors */ 1561 #define EM_BERKNET 'e' /* special berknet processing */ 1562 #define EM_QUIET 'q' /* don't print messages (stat only) */ 1563 1564 1565 /* bit values for MimeMode */ 1566 #define MM_CVTMIME 0x0001 /* convert 8 to 7 bit MIME */ 1567 #define MM_PASS8BIT 0x0002 /* just send 8 bit data blind */ 1568 #define MM_MIME8BIT 0x0004 /* convert 8-bit data to MIME */ 1569 1570 1571 /* how to handle messages without any recipient addresses */ 1572 #define NRA_NO_ACTION 0 /* just leave it as is */ 1573 #define NRA_ADD_TO 1 /* add To: header */ 1574 #define NRA_ADD_APPARENTLY_TO 2 /* add Apparently-To: header */ 1575 #define NRA_ADD_BCC 3 /* add empty Bcc: header */ 1576 #define NRA_ADD_TO_UNDISCLOSED 4 /* add To: undisclosed:; header */ 1577 1578 1579 /* flags to putxline */ 1580 #define PXLF_NOTHINGSPECIAL 0 /* no special mapping */ 1581 #define PXLF_MAPFROM 0x0001 /* map From_ to >From_ */ 1582 #define PXLF_STRIP8BIT 0x0002 /* strip 8th bit */ 1583 #define PXLF_HEADER 0x0004 /* map newlines in headers */ 1584 #define PXLF_NOADDEOL 0x0008 /* if EOL not present, don't add one */ 1585 1586 /* 1587 ** Privacy flags 1588 ** These are bit values for the PrivacyFlags word. 1589 */ 1590 1591 #define PRIV_PUBLIC 0 /* what have I got to hide? */ 1592 #define PRIV_NEEDMAILHELO 0x00000001 /* insist on HELO for MAIL */ 1593 #define PRIV_NEEDEXPNHELO 0x00000002 /* insist on HELO for EXPN */ 1594 #define PRIV_NEEDVRFYHELO 0x00000004 /* insist on HELO for VRFY */ 1595 #define PRIV_NOEXPN 0x00000008 /* disallow EXPN command */ 1596 #define PRIV_NOVRFY 0x00000010 /* disallow VRFY command */ 1597 #define PRIV_AUTHWARNINGS 0x00000020 /* flag possible auth probs */ 1598 #define PRIV_NOVERB 0x00000040 /* disallow VERB command */ 1599 #define PRIV_RESTRICTMAILQ 0x00010000 /* restrict mailq command */ 1600 #define PRIV_RESTRICTQRUN 0x00020000 /* restrict queue run */ 1601 #define PRIV_RESTRICTEXPAND 0x00040000 /* restrict alias/forward expansion */ 1602 #define PRIV_NOETRN 0x00080000 /* disallow ETRN command */ 1603 #define PRIV_NOBODYRETN 0x00100000 /* do not return bodies on bounces */ 1604 #define PRIV_NORECEIPTS 0x00200000 /* disallow return receipts */ 1605 #if _FFR_PRIV_NOACTUALRECIPIENT 1606 # define PRIV_NOACTUALRECIPIENT 0x00400000 /* no X-Actual-Recipient in DSNs */ 1607 #endif /* _FFR_PRIV_NOACTUALRECIPIENT */ 1608 1609 /* don't give no info, anyway, anyhow */ 1610 #define PRIV_GOAWAY 0x0000ffff 1611 1612 /* struct defining such things */ 1613 struct prival 1614 { 1615 char *pv_name; /* name of privacy flag */ 1616 unsigned long pv_flag; /* numeric level */ 1617 }; 1618 1619 EXTERN unsigned long PrivacyFlags; /* privacy flags */ 1620 1621 1622 /* 1623 ** Flags passed to remotename, parseaddr, allocaddr, and buildaddr. 1624 */ 1625 1626 #define RF_SENDERADDR 0x001 /* this is a sender address */ 1627 #define RF_HEADERADDR 0x002 /* this is a header address */ 1628 #define RF_CANONICAL 0x004 /* strip comment information */ 1629 #define RF_ADDDOMAIN 0x008 /* OK to do domain extension */ 1630 #define RF_COPYPARSE 0x010 /* copy parsed user & host */ 1631 #define RF_COPYPADDR 0x020 /* copy print address */ 1632 #define RF_COPYALL (RF_COPYPARSE|RF_COPYPADDR) 1633 #define RF_COPYNONE 0 1634 1635 /* 1636 ** Flags passed to rscheck 1637 */ 1638 1639 #define RSF_RMCOMM 0x0001 /* strip comments */ 1640 #define RSF_UNSTRUCTURED 0x0002 /* unstructured, ignore syntax errors */ 1641 #define RSF_COUNT 0x0004 /* count rejections (statistics)? */ 1642 1643 /* 1644 ** Flags passed to mime8to7 and putheader. 1645 */ 1646 1647 #define M87F_OUTER 0 /* outer context */ 1648 #define M87F_NO8BIT 0x0001 /* can't have 8-bit in this section */ 1649 #define M87F_DIGEST 0x0002 /* processing multipart/digest */ 1650 #define M87F_NO8TO7 0x0004 /* don't do 8->7 bit conversions */ 1651 1652 /* functions */ 1653 extern void mime7to8 __P((MCI *, HDR *, ENVELOPE *)); 1654 extern int mime8to7 __P((MCI *, HDR *, ENVELOPE *, char **, int)); 1655 1656 /* 1657 ** Flags passed to returntosender. 1658 */ 1659 1660 #define RTSF_NO_BODY 0 /* send headers only */ 1661 #define RTSF_SEND_BODY 0x0001 /* include body of message in return */ 1662 #define RTSF_PM_BOUNCE 0x0002 /* this is a postmaster bounce */ 1663 1664 /* functions */ 1665 extern int returntosender __P((char *, ADDRESS *, int, ENVELOPE *)); 1666 1667 /* 1668 ** Mail Filters (milter) 1669 */ 1670 1671 /* 1672 ** 32-bit type used by milter 1673 ** (needed by libmilter even if MILTER isn't defined) 1674 */ 1675 1676 typedef SM_INT32 mi_int32; 1677 1678 #if MILTER 1679 # define SMFTO_WRITE 0 /* Timeout for sending information */ 1680 # define SMFTO_READ 1 /* Timeout waiting for a response */ 1681 # define SMFTO_EOM 2 /* Timeout for ACK/NAK to EOM */ 1682 # define SMFTO_CONNECT 3 /* Timeout for connect() */ 1683 1684 # define SMFTO_NUM_TO 4 /* Total number of timeouts */ 1685 1686 struct milter 1687 { 1688 char *mf_name; /* filter name */ 1689 BITMAP256 mf_flags; /* MTA flags */ 1690 mi_int32 mf_fvers; /* filter version */ 1691 mi_int32 mf_fflags; /* filter flags */ 1692 mi_int32 mf_pflags; /* protocol flags */ 1693 char *mf_conn; /* connection info */ 1694 int mf_sock; /* connected socket */ 1695 char mf_state; /* state of filter */ 1696 time_t mf_timeout[SMFTO_NUM_TO]; /* timeouts */ 1697 }; 1698 1699 /* MTA flags */ 1700 # define SMF_REJECT 'R' /* Reject connection on filter fail */ 1701 # define SMF_TEMPFAIL 'T' /* tempfail connection on failure */ 1702 # define SMF_TEMPDROP '4' /* 421 connection on failure */ 1703 1704 /* states */ 1705 # define SMFS_CLOSED 'C' /* closed for all further actions */ 1706 # define SMFS_OPEN 'O' /* connected to remote milter filter */ 1707 # define SMFS_INMSG 'M' /* currently servicing a message */ 1708 # define SMFS_DONE 'D' /* done with current message */ 1709 # define SMFS_CLOSABLE 'Q' /* done with current connection */ 1710 # define SMFS_ERROR 'E' /* error state */ 1711 # define SMFS_READY 'R' /* ready for action */ 1712 1713 EXTERN struct milter *InputFilters[MAXFILTERS]; 1714 EXTERN char *InputFilterList; 1715 EXTERN int MilterLogLevel; 1716 1717 /* functions */ 1718 extern void setup_daemon_milters __P((void)); 1719 #endif /* MILTER */ 1720 1721 /* 1722 ** Vendor codes 1723 ** 1724 ** Vendors can customize sendmail to add special behaviour, 1725 ** generally for back compatibility. Ideally, this should 1726 ** be set up in the .cf file using the "V" command. However, 1727 ** it's quite reasonable for some vendors to want the default 1728 ** be their old version; this can be set using 1729 ** -DVENDOR_DEFAULT=VENDOR_xxx 1730 ** in the Makefile. 1731 ** 1732 ** Vendors should apply to sendmail@sendmail.org for 1733 ** unique vendor codes. 1734 */ 1735 1736 #define VENDOR_BERKELEY 1 /* Berkeley-native configuration file */ 1737 #define VENDOR_SUN 2 /* Sun-native configuration file */ 1738 #define VENDOR_HP 3 /* Hewlett-Packard specific config syntax */ 1739 #define VENDOR_IBM 4 /* IBM specific config syntax */ 1740 #define VENDOR_SENDMAIL 5 /* Sendmail, Inc. specific config syntax */ 1741 #define VENDOR_DEC 6 /* Compaq, DEC, Digital */ 1742 1743 /* prototypes for vendor-specific hook routines */ 1744 extern void vendor_daemon_setup __P((ENVELOPE *)); 1745 extern void vendor_set_uid __P((UID_T)); 1746 1747 1748 /* 1749 ** Terminal escape codes. 1750 ** 1751 ** To make debugging output clearer. 1752 */ 1753 1754 struct termescape 1755 { 1756 char *te_rv_on; /* turn reverse-video on */ 1757 char *te_rv_off; /* turn reverse-video off */ 1758 }; 1759 1760 /* 1761 ** Additional definitions 1762 */ 1763 1764 /* 1765 ** d_flags, see daemon.c 1766 ** general rule: lower case: required, upper case: No 1767 */ 1768 1769 #define D_AUTHREQ 'a' /* authentication required */ 1770 #define D_BINDIF 'b' /* use if_addr for outgoing connection */ 1771 #define D_CANONREQ 'c' /* canonification required (cf) */ 1772 #define D_IFNHELO 'h' /* use if name for HELO */ 1773 #define D_FQMAIL 'f' /* fq sender address required (cf) */ 1774 #define D_FQRCPT 'r' /* fq recipient address required (cf) */ 1775 #define D_SMTPS 's' /* SMTP over SSL (smtps) */ 1776 #define D_UNQUALOK 'u' /* unqualified address is ok (cf) */ 1777 #define D_NOAUTH 'A' /* no AUTH */ 1778 #define D_NOCANON 'C' /* no canonification (cf) */ 1779 #define D_NOETRN 'E' /* no ETRN (MSA) */ 1780 #define D_NOTLS 'S' /* don't use STARTTLS */ 1781 #define D_ETRNONLY ((char)0x01) /* allow only ETRN (disk low) */ 1782 #define D_OPTIONAL 'O' /* optional socket */ 1783 #define D_DISABLE ((char)0x02) /* optional socket disabled */ 1784 #define D_ISSET ((char)0x03) /* this client struct is set */ 1785 1786 #if STARTTLS 1787 /* 1788 ** TLS 1789 */ 1790 1791 /* what to do in the TLS initialization */ 1792 #define TLS_I_NONE 0x00000000 /* no requirements... */ 1793 #define TLS_I_CERT_EX 0x00000001 /* cert must exist */ 1794 #define TLS_I_CERT_UNR 0x00000002 /* cert must be g/o unreadable */ 1795 #define TLS_I_KEY_EX 0x00000004 /* key must exist */ 1796 #define TLS_I_KEY_UNR 0x00000008 /* key must be g/o unreadable */ 1797 #define TLS_I_CERTP_EX 0x00000010 /* CA cert path must exist */ 1798 #define TLS_I_CERTP_UNR 0x00000020 /* CA cert path must be g/o unreadable */ 1799 #define TLS_I_CERTF_EX 0x00000040 /* CA cert file must exist */ 1800 #define TLS_I_CERTF_UNR 0x00000080 /* CA cert file must be g/o unreadable */ 1801 #define TLS_I_RSA_TMP 0x00000100 /* RSA TMP must be generated */ 1802 #define TLS_I_USE_KEY 0x00000200 /* private key must usable */ 1803 #define TLS_I_USE_CERT 0x00000400 /* certificate must be usable */ 1804 #define TLS_I_VRFY_PATH 0x00000800 /* load verify path must succeed */ 1805 #define TLS_I_VRFY_LOC 0x00001000 /* load verify default must succeed */ 1806 #define TLS_I_CACHE 0x00002000 /* require cache */ 1807 #define TLS_I_TRY_DH 0x00004000 /* try DH certificate */ 1808 #define TLS_I_REQ_DH 0x00008000 /* require DH certificate */ 1809 #define TLS_I_DHPAR_EX 0x00010000 /* require DH parameters */ 1810 #define TLS_I_DHPAR_UNR 0x00020000 /* DH param. must be g/o unreadable */ 1811 #define TLS_I_DH512 0x00040000 /* generate 512bit DH param */ 1812 #define TLS_I_DH1024 0x00080000 /* generate 1024bit DH param */ 1813 #define TLS_I_DH2048 0x00100000 /* generate 2048bit DH param */ 1814 #define TLS_I_NO_VRFY 0x00200000 /* do not require authentication */ 1815 #define TLS_I_KEY_OUNR 0x00400000 /* Key must be other unreadable */ 1816 #define TLS_I_CRLF_EX 0x00800000 /* CRL file must exist */ 1817 #define TLS_I_CRLF_UNR 0x01000000 /* CRL file must be g/o unreadable */ 1818 1819 /* require server cert */ 1820 #define TLS_I_SRV_CERT (TLS_I_CERT_EX | TLS_I_KEY_EX | \ 1821 TLS_I_KEY_UNR | TLS_I_KEY_OUNR | \ 1822 TLS_I_CERTP_EX | TLS_I_CERTF_EX | \ 1823 TLS_I_USE_KEY | TLS_I_USE_CERT) 1824 1825 /* server requirements */ 1826 #define TLS_I_SRV (TLS_I_SRV_CERT | TLS_I_RSA_TMP | TLS_I_VRFY_PATH | \ 1827 TLS_I_VRFY_LOC | TLS_I_TRY_DH | TLS_I_DH512) 1828 1829 /* client requirements */ 1830 #define TLS_I_CLT (TLS_I_KEY_UNR | TLS_I_KEY_OUNR) 1831 1832 #define TLS_AUTH_OK 0 1833 #define TLS_AUTH_NO 1 1834 #define TLS_AUTH_FAIL (-1) 1835 1836 /* functions */ 1837 extern bool init_tls_library __P((void)); 1838 extern bool inittls __P((SSL_CTX **, unsigned long, bool, char *, char *, char *, char *, char *)); 1839 extern bool initclttls __P((bool)); 1840 extern void setclttls __P((bool)); 1841 extern bool initsrvtls __P((bool)); 1842 extern int tls_get_info __P((SSL *, bool, char *, MACROS_T *, bool)); 1843 extern int endtls __P((SSL *, char *)); 1844 extern void tlslogerr __P((char *)); 1845 1846 1847 EXTERN char *CACertPath; /* path to CA certificates (dir. with hashes) */ 1848 EXTERN char *CACertFile; /* file with CA certificate */ 1849 EXTERN char *CltCertFile; /* file with client certificate */ 1850 EXTERN char *CltKeyFile; /* file with client private key */ 1851 # if _FFR_TLS_1 1852 EXTERN char *CipherList; /* list of ciphers */ 1853 EXTERN char *DHParams5; /* file with DH parameters (512) */ 1854 # endif /* _FFR_TLS_1 */ 1855 EXTERN char *DHParams; /* file with DH parameters */ 1856 EXTERN char *RandFile; /* source of random data */ 1857 EXTERN char *SrvCertFile; /* file with server certificate */ 1858 EXTERN char *SrvKeyFile; /* file with server private key */ 1859 EXTERN char *CRLFile; /* file CRLs */ 1860 #if _FFR_CRLPATH 1861 EXTERN char *CRLPath; /* path to CRLs (dir. with hashes) */ 1862 #endif /* _FFR_CRLPATH */ 1863 EXTERN unsigned long TLS_Srv_Opts; /* TLS server options */ 1864 #endif /* STARTTLS */ 1865 1866 /* 1867 ** Queue related items 1868 */ 1869 1870 /* queue file names */ 1871 #define ANYQFL_LETTER '?' 1872 #define QUARQF_LETTER 'h' 1873 #define DATAFL_LETTER 'd' 1874 #define XSCRPT_LETTER 'x' 1875 #define NORMQF_LETTER 'q' 1876 #define NEWQFL_LETTER 't' 1877 1878 # define TEMPQF_LETTER 'T' 1879 # define LOSEQF_LETTER 'Q' 1880 1881 /* queue sort order */ 1882 #define QSO_BYPRIORITY 0 /* sort by message priority */ 1883 #define QSO_BYHOST 1 /* sort by first host name */ 1884 #define QSO_BYTIME 2 /* sort by submission time */ 1885 #define QSO_BYFILENAME 3 /* sort by file name only */ 1886 #define QSO_RANDOM 4 /* sort in random order */ 1887 #define QSO_BYMODTIME 5 /* sort by modification time */ 1888 #define QSO_NONE 6 /* do not sort */ 1889 #if _FFR_RHS 1890 # define QSO_BYSHUFFLE 7 /* sort by shuffled host name */ 1891 #endif /* _FFR_RHS */ 1892 1893 #define NOQGRP (-1) /* no queue group (yet) */ 1894 #define ENVQGRP (-2) /* use queue group of envelope */ 1895 #define NOAQGRP (-3) /* no queue group in addr (yet) */ 1896 #define ISVALIDQGRP(x) ((x) >= 0) /* valid queue group? */ 1897 #define NOQDIR (-1) /* no queue directory (yet) */ 1898 #define ENVQDIR (-2) /* use queue directory of envelope */ 1899 #define NOAQDIR (-3) /* no queue directory in addr (yet) */ 1900 #define ISVALIDQDIR(x) ((x) >= 0) /* valid queue directory? */ 1901 #define RS_QUEUEGROUP "queuegroup" /* ruleset for queue group selection */ 1902 1903 #define NOW ((time_t) (-1)) /* queue return: now */ 1904 1905 /* SuperSafe values */ 1906 #define SAFE_NO 0 /* no fsync(): don't use... */ 1907 #define SAFE_INTERACTIVE 1 /* limit fsync() in -odi */ 1908 #define SAFE_REALLY 2 /* always fsync() */ 1909 #define SAFE_REALLY_POSTMILTER 3 /* fsync() if milter says OK */ 1910 1911 /* QueueMode bits */ 1912 #define QM_NORMAL ' ' 1913 #define QM_QUARANTINE 'Q' 1914 #define QM_LOST 'L' 1915 1916 /* Queue Run Limitations */ 1917 struct queue_char 1918 { 1919 char *queue_match; /* string to match */ 1920 bool queue_negate; /* or not match, if set */ 1921 struct queue_char *queue_next; 1922 }; 1923 1924 /* run_work_group() flags */ 1925 #define RWG_NONE 0x0000 1926 #define RWG_FORK 0x0001 1927 #define RWG_VERBOSE 0x0002 1928 #define RWG_PERSISTENT 0x0004 1929 #define RWG_FORCE 0x0008 1930 #define RWG_RUNALL 0x0010 1931 1932 typedef struct queue_char QUEUE_CHAR; 1933 1934 EXTERN int volatile CurRunners; /* current number of runner children */ 1935 EXTERN int MaxQueueRun; /* maximum number of jobs in one queue run */ 1936 EXTERN int MaxQueueChildren; /* max # of forked queue children */ 1937 EXTERN int MaxRunnersPerQueue; /* max # proc's active in queue group */ 1938 EXTERN int NiceQueueRun; /* nice queue runs to this value */ 1939 EXTERN int NumQueue; /* number of queue groups */ 1940 EXTERN int QueueFileMode; /* mode on files in mail queue */ 1941 EXTERN int QueueMode; /* which queue items to act upon */ 1942 EXTERN int QueueSortOrder; /* queue sorting order algorithm */ 1943 EXTERN time_t MinQueueAge; /* min delivery interval */ 1944 EXTERN time_t QueueIntvl; /* intervals between running the queue */ 1945 EXTERN char *QueueDir; /* location of queue directory */ 1946 EXTERN QUEUE_CHAR *QueueLimitId; /* limit queue run to id */ 1947 EXTERN QUEUE_CHAR *QueueLimitQuarantine; /* limit queue run to quarantine reason */ 1948 EXTERN QUEUE_CHAR *QueueLimitRecipient; /* limit queue run to rcpt */ 1949 EXTERN QUEUE_CHAR *QueueLimitSender; /* limit queue run to sender */ 1950 EXTERN QUEUEGRP *Queue[MAXQUEUEGROUPS + 1]; /* queue groups */ 1951 1952 /* functions */ 1953 extern void assign_queueid __P((ENVELOPE *)); 1954 extern ADDRESS *copyqueue __P((ADDRESS *, SM_RPOOL_T *)); 1955 extern void cleanup_queues __P((void)); 1956 extern bool doqueuerun __P((void)); 1957 extern void initsys __P((ENVELOPE *)); 1958 extern void loseqfile __P((ENVELOPE *, char *)); 1959 extern int name2qid __P((char *)); 1960 extern char *qid_printname __P((ENVELOPE *)); 1961 extern char *qid_printqueue __P((int, int)); 1962 extern void quarantine_queue __P((char *, int)); 1963 extern char *queuename __P((ENVELOPE *, int)); 1964 extern void queueup __P((ENVELOPE *, bool, bool)); 1965 extern bool runqueue __P((bool, bool, bool, bool)); 1966 extern bool run_work_group __P((int, int)); 1967 extern void set_def_queueval __P((QUEUEGRP *, bool)); 1968 extern void setup_queues __P((bool)); 1969 extern bool setnewqueue __P((ENVELOPE *)); 1970 extern bool shouldqueue __P((long, time_t)); 1971 extern void sync_queue_time __P((void)); 1972 extern void init_qid_alg __P((void)); 1973 extern int print_single_queue __P((int, int)); 1974 #if REQUIRES_DIR_FSYNC 1975 # define SYNC_DIR(path, panic) sync_dir(path, panic) 1976 extern void sync_dir __P((char *, bool)); 1977 #else /* REQUIRES_DIR_FSYNC */ 1978 # define SYNC_DIR(path, panic) ((void) 0) 1979 #endif /* REQUIRES_DIR_FSYNC */ 1980 1981 /* 1982 ** Timeouts 1983 ** 1984 ** Indicated values are the MINIMUM per RFC 1123 section 5.3.2. 1985 */ 1986 1987 EXTERN struct 1988 { 1989 /* RFC 1123-specified timeouts [minimum value] */ 1990 time_t to_initial; /* initial greeting timeout [5m] */ 1991 time_t to_mail; /* MAIL command [5m] */ 1992 time_t to_rcpt; /* RCPT command [5m] */ 1993 time_t to_datainit; /* DATA initiation [2m] */ 1994 time_t to_datablock; /* DATA block [3m] */ 1995 time_t to_datafinal; /* DATA completion [10m] */ 1996 time_t to_nextcommand; /* next command [5m] */ 1997 /* following timeouts are not mentioned in RFC 1123 */ 1998 time_t to_iconnect; /* initial connection timeout (first try) */ 1999 time_t to_connect; /* initial connection timeout (later tries) */ 2000 time_t to_aconnect; /* all connections timeout (MX and A records) */ 2001 time_t to_rset; /* RSET command */ 2002 time_t to_helo; /* HELO command */ 2003 time_t to_quit; /* QUIT command */ 2004 time_t to_miscshort; /* misc short commands (NOOP, VERB, etc) */ 2005 time_t to_ident; /* IDENT protocol requests */ 2006 time_t to_fileopen; /* opening :include: and .forward files */ 2007 time_t to_control; /* process a control socket command */ 2008 time_t to_lhlo; /* LMTP: LHLO command */ 2009 #if SASL 2010 time_t to_auth; /* AUTH dialogue [10m] */ 2011 #endif /* SASL */ 2012 #if STARTTLS 2013 time_t to_starttls; /* STARTTLS dialogue [10m] */ 2014 #endif /* STARTTLS */ 2015 /* following are per message */ 2016 time_t to_q_return[MAXTOCLASS]; /* queue return timeouts */ 2017 time_t to_q_warning[MAXTOCLASS]; /* queue warning timeouts */ 2018 time_t res_retrans[MAXRESTOTYPES]; /* resolver retransmit */ 2019 int res_retry[MAXRESTOTYPES]; /* resolver retry */ 2020 } TimeOuts; 2021 2022 /* timeout classes for return and warning timeouts */ 2023 #define TOC_NORMAL 0 /* normal delivery */ 2024 #define TOC_URGENT 1 /* urgent delivery */ 2025 #define TOC_NONURGENT 2 /* non-urgent delivery */ 2026 #define TOC_DSN 3 /* DSN delivery */ 2027 2028 /* resolver timeout specifiers */ 2029 #define RES_TO_FIRST 0 /* first attempt */ 2030 #define RES_TO_NORMAL 1 /* subsequent attempts */ 2031 #define RES_TO_DEFAULT 2 /* default value */ 2032 2033 /* functions */ 2034 extern void inittimeouts __P((char *, bool)); 2035 2036 /* 2037 ** Interface probing 2038 */ 2039 2040 #define DPI_PROBENONE 0 /* Don't probe any interfaces */ 2041 #define DPI_PROBEALL 1 /* Probe all interfaces */ 2042 #define DPI_SKIPLOOPBACK 2 /* Don't probe loopback interfaces */ 2043 2044 /* 2045 ** Trace information 2046 */ 2047 2048 /* macros for debugging flags */ 2049 #define tTd(flag, level) (tTdvect[flag] >= (unsigned char)level) 2050 #define tTdlevel(flag) (tTdvect[flag]) 2051 2052 /* variables */ 2053 extern unsigned char tTdvect[100]; /* trace vector */ 2054 2055 /* 2056 ** Miscellaneous information. 2057 */ 2058 2059 /* 2060 ** The "no queue id" queue id for sm_syslog 2061 */ 2062 2063 #define NOQID "*~*" 2064 2065 /* use id or NOQID (to avoid NOQUEUE in logfile) */ 2066 #define E_ID(id) ((id) == NULL ? NOQID : (id)) 2067 2068 #define CURHOSTNAME (CurHostName == NULL ? "local" : CurHostName) 2069 2070 /* 2071 ** Some in-line functions 2072 */ 2073 2074 /* set exit status */ 2075 #define setstat(s) { \ 2076 if (ExitStat == EX_OK || ExitStat == EX_TEMPFAIL) \ 2077 ExitStat = s; \ 2078 } 2079 2080 2081 #define STRUCTCOPY(s, d) d = s 2082 2083 /* free a pointer if it isn't NULL and set it to NULL */ 2084 #define SM_FREE_CLR(p) \ 2085 if ((p) != NULL) \ 2086 { \ 2087 sm_free(p); \ 2088 (p) = NULL; \ 2089 } \ 2090 else 2091 2092 /* 2093 ** Update a permanent string variable with a new value. 2094 ** The old value is freed, the new value is strdup'ed. 2095 ** 2096 ** We use sm_pstrdup_x to duplicate the string because it raises 2097 ** an exception on error, and because it allocates "permanent storage" 2098 ** which is not expected to be freed before process exit. 2099 ** The latter is important for memory leak analysis. 2100 ** 2101 ** If an exception occurs while strdup'ing the new value, 2102 ** then the variable remains set to the old value. 2103 ** That's why the strdup must occur before we free the old value. 2104 ** 2105 ** The macro uses a do loop so that this idiom will work: 2106 ** if (...) 2107 ** PSTRSET(var, val1); 2108 ** else 2109 ** PSTRSET(var, val2); 2110 */ 2111 #define PSTRSET(var, val) \ 2112 do \ 2113 { \ 2114 char *_newval = sm_pstrdup_x(val); \ 2115 if (var != NULL) \ 2116 sm_free(var); \ 2117 var = _newval; \ 2118 } while (0) 2119 2120 #define _CHECK_RESTART \ 2121 do \ 2122 { \ 2123 if (ShutdownRequest != NULL) \ 2124 shutdown_daemon(); \ 2125 else if (RestartRequest != NULL) \ 2126 restart_daemon(); \ 2127 else if (RestartWorkGroup) \ 2128 restart_marked_work_groups(); \ 2129 } while (0) 2130 2131 # define CHECK_RESTART _CHECK_RESTART 2132 2133 /* reply types (text in SmtpMsgBuffer) */ 2134 #define XS_DEFAULT 0 2135 #define XS_STARTTLS 1 2136 #define XS_AUTH 2 2137 2138 /* 2139 ** Global variables. 2140 */ 2141 2142 EXTERN bool AllowBogusHELO; /* allow syntax errors on HELO command */ 2143 EXTERN bool CheckAliases; /* parse addresses during newaliases */ 2144 EXTERN bool ColonOkInAddr; /* single colon legal in address */ 2145 #if !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) 2146 EXTERN bool ConfigFileRead; /* configuration file has been read */ 2147 #endif /* !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) */ 2148 EXTERN bool volatile DataProgress; /* have we sent anything since last check */ 2149 EXTERN bool DisConnected; /* running with OutChannel redirect to transcript file */ 2150 EXTERN bool DontExpandCnames; /* do not $[...$] expand CNAMEs */ 2151 EXTERN bool DontInitGroups; /* avoid initgroups() because of NIS cost */ 2152 EXTERN bool DontLockReadFiles; /* don't read lock support files */ 2153 EXTERN bool DontPruneRoutes; /* don't prune source routes */ 2154 EXTERN bool ForkQueueRuns; /* fork for each job when running the queue */ 2155 EXTERN bool FromFlag; /* if set, "From" person is explicit */ 2156 EXTERN bool GrabTo; /* if set, get recipients from msg */ 2157 EXTERN bool HasEightBits; /* has at least one eight bit input byte */ 2158 EXTERN bool HasWildcardMX; /* don't use MX records when canonifying */ 2159 EXTERN bool HoldErrs; /* only output errors to transcript */ 2160 EXTERN bool IgnoreHostStatus; /* ignore long term host status files */ 2161 EXTERN bool IgnrDot; /* don't let dot end messages */ 2162 EXTERN bool LogUsrErrs; /* syslog user errors (e.g., SMTP RCPT cmd) */ 2163 EXTERN bool MatchGecos; /* look for user names in gecos field */ 2164 EXTERN bool MeToo; /* send to the sender also */ 2165 EXTERN bool NoAlias; /* suppress aliasing */ 2166 EXTERN bool NoConnect; /* don't connect to non-local mailers */ 2167 EXTERN bool OnlyOneError; /* .... or only want to give one SMTP reply */ 2168 EXTERN bool QuickAbort; /* .... but only if we want a quick abort */ 2169 #if REQUIRES_DIR_FSYNC 2170 EXTERN bool RequiresDirfsync; /* requires fsync() for directory */ 2171 #endif /* REQUIRES_DIR_FSYNC */ 2172 EXTERN bool volatile RestartWorkGroup; /* daemon needs to restart some work groups */ 2173 EXTERN bool RrtImpliesDsn; /* turn Return-Receipt-To: into DSN */ 2174 EXTERN bool SaveFrom; /* save leading "From" lines */ 2175 EXTERN bool SendMIMEErrors; /* send error messages in MIME format */ 2176 EXTERN bool SevenBitInput; /* force 7-bit data on input */ 2177 EXTERN bool SingleLineFromHeader; /* force From: header to be one line */ 2178 EXTERN bool SingleThreadDelivery; /* single thread hosts on delivery */ 2179 #if _FFR_SOFT_BOUNCE 2180 EXTERN bool SoftBounce; /* replace 5xy by 4xy (for testing) */ 2181 #endif /* _FFR_SOFT_BOUNCE */ 2182 EXTERN bool volatile StopRequest; /* stop sending output */ 2183 EXTERN bool SuprErrs; /* set if we are suppressing errors */ 2184 EXTERN bool TryNullMXList; /* if we are the best MX, try host directly */ 2185 EXTERN bool UseMSP; /* mail submission: group writable queue ok? */ 2186 EXTERN bool WorkAroundBrokenAAAA; /* some nameservers return SERVFAIL on AAAA queries */ 2187 EXTERN bool UseErrorsTo; /* use Errors-To: header (back compat) */ 2188 EXTERN bool UseNameServer; /* using DNS -- interpret h_errno & MX RRs */ 2189 EXTERN char InetMode; /* default network for daemon mode */ 2190 EXTERN char OpMode; /* operation mode, see below */ 2191 EXTERN char SpaceSub; /* substitution for <lwsp> */ 2192 EXTERN int BadRcptThrottle; /* Throttle rejected RCPTs per SMTP message */ 2193 EXTERN int CheckpointInterval; /* queue file checkpoint interval */ 2194 EXTERN int ConfigLevel; /* config file level */ 2195 EXTERN int ConnRateThrottle; /* throttle for SMTP connection rate */ 2196 EXTERN int volatile CurChildren; /* current number of daemonic children */ 2197 EXTERN int CurrentLA; /* current load average */ 2198 EXTERN int DefaultNotify; /* default DSN notification flags */ 2199 EXTERN int DelayLA; /* load average to delay connections */ 2200 EXTERN int DontProbeInterfaces; /* don't probe interfaces for names */ 2201 EXTERN int Errors; /* set if errors (local to single pass) */ 2202 EXTERN int ExitStat; /* exit status code */ 2203 EXTERN int FastSplit; /* fast initial splitting of envelopes */ 2204 EXTERN int FileMode; /* mode on files */ 2205 EXTERN int LineNumber; /* line number in current input */ 2206 EXTERN int LogLevel; /* level of logging to perform */ 2207 EXTERN int MaxAliasRecursion; /* maximum depth of alias recursion */ 2208 EXTERN int MaxChildren; /* maximum number of daemonic children */ 2209 EXTERN int MaxForwardEntries; /* maximum number of forward entries */ 2210 EXTERN int MaxHeadersLength; /* max length of headers */ 2211 EXTERN int MaxHopCount; /* max # of hops until bounce */ 2212 EXTERN int MaxMacroRecursion; /* maximum depth of macro recursion */ 2213 EXTERN int MaxMimeFieldLength; /* maximum MIME field length */ 2214 EXTERN int MaxMimeHeaderLength; /* maximum MIME header length */ 2215 2216 EXTERN int MaxRcptPerMsg; /* max recipients per SMTP message */ 2217 EXTERN int MaxRuleRecursion; /* maximum depth of ruleset recursion */ 2218 EXTERN int MimeMode; /* MIME processing mode */ 2219 EXTERN int NoRecipientAction; 2220 2221 #if SM_CONF_SHM 2222 EXTERN int Numfilesys; /* number of queue file systems */ 2223 EXTERN int *PNumFileSys; 2224 # define NumFileSys (*PNumFileSys) 2225 # else /* SM_CONF_SHM */ 2226 EXTERN int NumFileSys; /* number of queue file systems */ 2227 # endif /* SM_CONF_SHM */ 2228 2229 EXTERN int QueueLA; /* load average starting forced queueing */ 2230 EXTERN int RefuseLA; /* load average refusing connections */ 2231 EXTERN time_t RejectLogInterval; /* time btwn log msgs while refusing */ 2232 EXTERN int SuperSafe; /* be extra careful, even if expensive */ 2233 EXTERN int VendorCode; /* vendor-specific operation enhancements */ 2234 EXTERN int Verbose; /* set if blow-by-blow desired */ 2235 EXTERN gid_t DefGid; /* default gid to run as */ 2236 EXTERN gid_t RealGid; /* real gid of caller */ 2237 EXTERN gid_t RunAsGid; /* GID to become for bulk of run */ 2238 EXTERN gid_t EffGid; /* effective gid */ 2239 #if SM_CONF_SHM 2240 EXTERN key_t ShmKey; /* shared memory key */ 2241 # if _FFR_SELECT_SHM 2242 EXTERN char *ShmKeyFile; /* shared memory key file */ 2243 # endif /* _FFR_SELECT_SHM */ 2244 #endif /* SM_CONF_SHM */ 2245 EXTERN pid_t CurrentPid; /* current process id */ 2246 EXTERN pid_t DaemonPid; /* process id of daemon */ 2247 EXTERN pid_t PidFilePid; /* daemon/queue runner who wrote pid file */ 2248 EXTERN uid_t DefUid; /* default uid to run as */ 2249 EXTERN uid_t RealUid; /* real uid of caller */ 2250 EXTERN uid_t RunAsUid; /* UID to become for bulk of run */ 2251 EXTERN uid_t TrustedUid; /* uid of trusted user for files and startup */ 2252 EXTERN size_t DataFileBufferSize; /* size of buf for in-core data file */ 2253 EXTERN time_t DeliverByMin; /* deliver by minimum time */ 2254 EXTERN time_t DialDelay; /* delay between dial-on-demand tries */ 2255 EXTERN time_t SafeAlias; /* interval to wait until @:@ in alias file */ 2256 EXTERN time_t ServiceCacheMaxAge; /* refresh interval for cache */ 2257 EXTERN size_t XscriptFileBufferSize; /* size of buf for in-core transcript file */ 2258 EXTERN MODE_T OldUmask; /* umask when sendmail starts up */ 2259 EXTERN long MaxMessageSize; /* advertised max size we will accept */ 2260 EXTERN long MinBlocksFree; /* min # of blocks free on queue fs */ 2261 EXTERN long QueueFactor; /* slope of queue function */ 2262 EXTERN long WkClassFact; /* multiplier for message class -> priority */ 2263 EXTERN long WkRecipFact; /* multiplier for # of recipients -> priority */ 2264 EXTERN long WkTimeFact; /* priority offset each time this job is run */ 2265 EXTERN char *ControlSocketName; /* control socket filename [control.c] */ 2266 EXTERN char *CurHostName; /* current host we are dealing with */ 2267 EXTERN char *DeadLetterDrop; /* path to dead letter office */ 2268 EXTERN char *DefUser; /* default user to run as (from DefUid) */ 2269 EXTERN char *DefaultCharSet; /* default character set for MIME */ 2270 EXTERN char *DoubleBounceAddr; /* where to send double bounces */ 2271 EXTERN char *ErrMsgFile; /* file to prepend to all error messages */ 2272 EXTERN char *FallbackMX; /* fall back MX host */ 2273 EXTERN char *FallbackSmartHost; /* fall back smart host */ 2274 EXTERN char *FileName; /* name to print on error messages */ 2275 EXTERN char *ForwardPath; /* path to search for .forward files */ 2276 #if _FFR_HELONAME 2277 EXTERN char *HeloName; /* hostname to announce in HELO */ 2278 #endif /* _FFR_HELONAME */ 2279 EXTERN char *HelpFile; /* location of SMTP help file */ 2280 EXTERN char *HostStatDir; /* location of host status information */ 2281 EXTERN char *HostsFile; /* path to /etc/hosts file */ 2282 extern char *Mbdb; /* mailbox database type */ 2283 EXTERN char *MustQuoteChars; /* quote these characters in phrases */ 2284 EXTERN char *MyHostName; /* name of this host for SMTP messages */ 2285 EXTERN char *OperatorChars; /* operators (old $o macro) */ 2286 EXTERN char *PidFile; /* location of proc id file [conf.c] */ 2287 EXTERN char *PostMasterCopy; /* address to get errs cc's */ 2288 EXTERN char *ProcTitlePrefix; /* process title prefix */ 2289 EXTERN char *RealHostName; /* name of host we are talking to */ 2290 EXTERN char *RealUserName; /* real user name of caller */ 2291 EXTERN char *volatile RestartRequest;/* a sendmail restart has been requested */ 2292 EXTERN char *RunAsUserName; /* user to become for bulk of run */ 2293 EXTERN char *SafeFileEnv; /* chroot location for file delivery */ 2294 EXTERN char *ServiceSwitchFile; /* backup service switch */ 2295 EXTERN char *volatile ShutdownRequest;/* a sendmail shutdown has been requested */ 2296 EXTERN char *SmtpGreeting; /* SMTP greeting message (old $e macro) */ 2297 EXTERN char *SmtpPhase; /* current phase in SMTP processing */ 2298 EXTERN char SmtpError[MAXLINE]; /* save failure error messages */ 2299 EXTERN char *StatFile; /* location of statistics summary */ 2300 EXTERN char *TimeZoneSpec; /* override time zone specification */ 2301 EXTERN char *UdbSpec; /* user database source spec */ 2302 EXTERN char *UnixFromLine; /* UNIX From_ line (old $l macro) */ 2303 EXTERN char **ExternalEnviron; /* saved user (input) environment */ 2304 EXTERN char **SaveArgv; /* argument vector for re-execing */ 2305 EXTERN BITMAP256 DontBlameSendmail; /* DontBlameSendmail bits */ 2306 EXTERN SM_FILE_T *InChannel; /* input connection */ 2307 EXTERN SM_FILE_T *OutChannel; /* output connection */ 2308 EXTERN SM_FILE_T *TrafficLogFile; /* file in which to log all traffic */ 2309 #if HESIOD 2310 EXTERN void *HesiodContext; 2311 #endif /* HESIOD */ 2312 EXTERN ENVELOPE *CurEnv; /* envelope currently being processed */ 2313 EXTERN char *RuleSetNames[MAXRWSETS]; /* ruleset number to name */ 2314 EXTERN char *UserEnviron[MAXUSERENVIRON + 1]; 2315 EXTERN struct rewrite *RewriteRules[MAXRWSETS]; 2316 EXTERN struct termescape TermEscape; /* terminal escape codes */ 2317 EXTERN SOCKADDR ConnectOnlyTo; /* override connection address (for testing) */ 2318 EXTERN SOCKADDR RealHostAddr; /* address of host we are talking to */ 2319 extern const SM_EXC_TYPE_T EtypeQuickAbort; /* type of a QuickAbort exception */ 2320 2321 2322 EXTERN int ConnectionRateWindowSize; 2323 2324 /* 2325 ** Declarations of useful functions 2326 */ 2327 2328 /* Transcript file */ 2329 extern void closexscript __P((ENVELOPE *)); 2330 extern void openxscript __P((ENVELOPE *)); 2331 2332 /* error related */ 2333 extern void buffer_errors __P((void)); 2334 extern void flush_errors __P((bool)); 2335 extern void PRINTFLIKE(1, 2) message __P((const char *, ...)); 2336 extern void PRINTFLIKE(1, 2) nmessage __P((const char *, ...)); 2337 extern void PRINTFLIKE(1, 2) syserr __P((const char *, ...)); 2338 extern void PRINTFLIKE(2, 3) usrerrenh __P((char *, const char *, ...)); 2339 extern void PRINTFLIKE(1, 2) usrerr __P((const char *, ...)); 2340 extern int isenhsc __P((const char *, int)); 2341 extern int extenhsc __P((const char *, int, char *)); 2342 2343 /* alias file */ 2344 extern void alias __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 2345 extern bool aliaswait __P((MAP *, char *, bool)); 2346 extern void forward __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 2347 extern void readaliases __P((MAP *, SM_FILE_T *, bool, bool)); 2348 extern bool rebuildaliases __P((MAP *, bool)); 2349 extern void setalias __P((char *)); 2350 2351 /* logging */ 2352 extern void logdelivery __P((MAILER *, MCI *, char *, const char *, ADDRESS *, time_t, ENVELOPE *)); 2353 extern void logsender __P((ENVELOPE *, char *)); 2354 extern void PRINTFLIKE(3, 4) sm_syslog __P((int, const char *, const char *, ...)); 2355 2356 /* SMTP */ 2357 extern void giveresponse __P((int, char *, MAILER *, MCI *, ADDRESS *, time_t, ENVELOPE *, ADDRESS *)); 2358 extern int reply __P((MAILER *, MCI *, ENVELOPE *, time_t, void (*)__P((char *, bool, MAILER *, MCI *, ENVELOPE *)), char **, int)); 2359 extern void smtp __P((char *volatile, BITMAP256, ENVELOPE *volatile)); 2360 #if SASL 2361 extern int smtpauth __P((MAILER *, MCI *, ENVELOPE *)); 2362 #endif /* SASL */ 2363 extern int smtpdata __P((MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t)); 2364 extern int smtpgetstat __P((MAILER *, MCI *, ENVELOPE *)); 2365 extern int smtpmailfrom __P((MAILER *, MCI *, ENVELOPE *)); 2366 extern void smtpmessage __P((char *, MAILER *, MCI *, ...)); 2367 extern void smtpinit __P((MAILER *, MCI *, ENVELOPE *, bool)); 2368 extern char *smtptodsn __P((int)); 2369 extern int smtpprobe __P((MCI *)); 2370 extern void smtpquit __P((MAILER *, MCI *, ENVELOPE *)); 2371 extern int smtprcpt __P((ADDRESS *, MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t)); 2372 extern void smtprset __P((MAILER *, MCI *, ENVELOPE *)); 2373 2374 #define ISSMTPCODE(c) (isascii(c[0]) && isdigit(c[0]) && \ 2375 isascii(c[1]) && isdigit(c[1]) && \ 2376 isascii(c[2]) && isdigit(c[2])) 2377 #define ISSMTPREPLY(c) (ISSMTPCODE(c) && \ 2378 (c[3] == ' ' || c[3] == '-' || c[3] == '\0')) 2379 2380 /* delivery */ 2381 extern pid_t dowork __P((int, int, char *, bool, bool, ENVELOPE *)); 2382 extern pid_t doworklist __P((ENVELOPE *, bool, bool)); 2383 extern int endmailer __P((MCI *, ENVELOPE *, char **)); 2384 extern int mailfile __P((char *volatile, MAILER *volatile, ADDRESS *, volatile long, ENVELOPE *)); 2385 extern void sendall __P((ENVELOPE *, int)); 2386 2387 /* stats */ 2388 #define STATS_NORMAL 'n' 2389 #define STATS_QUARANTINE 'q' 2390 #define STATS_REJECT 'r' 2391 #define STATS_CONNECT 'c' 2392 2393 extern void markstats __P((ENVELOPE *, ADDRESS *, int)); 2394 extern void clearstats __P((void)); 2395 extern void poststats __P((char *)); 2396 2397 /* control socket */ 2398 extern void closecontrolsocket __P((bool)); 2399 extern void clrcontrol __P((void)); 2400 extern void control_command __P((int, ENVELOPE *)); 2401 extern int opencontrolsocket __P((void)); 2402 2403 #if MILTER 2404 /* milter functions */ 2405 extern void milter_config __P((char *, struct milter **, int)); 2406 extern void milter_setup __P((char *)); 2407 extern void milter_set_option __P((char *, char *, bool)); 2408 extern bool milter_can_delrcpts __P((void)); 2409 extern bool milter_init __P((ENVELOPE *, char *)); 2410 extern void milter_quit __P((ENVELOPE *)); 2411 extern void milter_abort __P((ENVELOPE *)); 2412 extern char *milter_connect __P((char *, SOCKADDR, ENVELOPE *, char *)); 2413 extern char *milter_helo __P((char *, ENVELOPE *, char *)); 2414 extern char *milter_envfrom __P((char **, ENVELOPE *, char *)); 2415 extern char *milter_data_cmd __P((ENVELOPE *, char *)); 2416 extern char *milter_envrcpt __P((char **, ENVELOPE *, char *)); 2417 extern char *milter_data __P((ENVELOPE *, char *)); 2418 extern char *milter_unknown __P((char *, ENVELOPE *, char *)); 2419 #endif /* MILTER */ 2420 2421 extern char *addquotes __P((char *, SM_RPOOL_T *)); 2422 extern char *arpadate __P((char *)); 2423 extern bool atobool __P((char *)); 2424 extern int atooct __P((char *)); 2425 extern void auth_warning __P((ENVELOPE *, const char *, ...)); 2426 extern int blocksignal __P((int)); 2427 extern bool bitintersect __P((BITMAP256, BITMAP256)); 2428 extern bool bitzerop __P((BITMAP256)); 2429 extern int check_bodytype __P((char *)); 2430 extern void buildfname __P((char *, char *, char *, int)); 2431 extern bool chkclientmodifiers __P((int)); 2432 extern bool chkdaemonmodifiers __P((int)); 2433 extern int checkcompat __P((ADDRESS *, ENVELOPE *)); 2434 #ifdef XDEBUG 2435 extern void checkfd012 __P((char *)); 2436 extern void checkfdopen __P((int, char *)); 2437 #endif /* XDEBUG */ 2438 extern void checkfds __P((char *)); 2439 extern bool chownsafe __P((int, bool)); 2440 extern void cleanstrcpy __P((char *, char *, int)); 2441 #if SM_CONF_SHM 2442 extern void cleanup_shm __P((bool)); 2443 #endif /* SM_CONF_SHM */ 2444 extern void close_sendmail_pid __P((void)); 2445 extern void clrdaemon __P((void)); 2446 extern void collect __P((SM_FILE_T *, bool, HDR **, ENVELOPE *, bool)); 2447 extern bool connection_rate_check __P((SOCKADDR *, ENVELOPE *)); 2448 extern time_t convtime __P((char *, int)); 2449 extern char **copyplist __P((char **, bool, SM_RPOOL_T *)); 2450 extern void copy_class __P((int, int)); 2451 extern int count_open_connections __P((SOCKADDR *)); 2452 extern time_t curtime __P((void)); 2453 extern char *defcharset __P((ENVELOPE *)); 2454 extern char *denlstring __P((char *, bool, bool)); 2455 extern void dferror __P((SM_FILE_T *volatile, char *, ENVELOPE *)); 2456 extern void disconnect __P((int, ENVELOPE *)); 2457 #if _FFR_CONTROL_MSTAT 2458 extern void disk_status __P((SM_FILE_T *, char *)); 2459 #endif /* _FFR_CONTROL_MSTAT */ 2460 extern bool dns_getcanonname __P((char *, int, bool, int *, int *)); 2461 extern pid_t dofork __P((void)); 2462 extern int drop_privileges __P((bool)); 2463 extern int dsntoexitstat __P((char *)); 2464 extern void dumpfd __P((int, bool, bool)); 2465 extern void dumpstate __P((char *)); 2466 extern bool enoughdiskspace __P((long, ENVELOPE *)); 2467 extern char *exitstat __P((char *)); 2468 extern void fatal_error __P((SM_EXC_T *)); 2469 extern char *fgetfolded __P((char *, int, SM_FILE_T *)); 2470 extern void fill_fd __P((int, char *)); 2471 extern char *find_character __P((char *, int)); 2472 extern int finduser __P((char *, bool *, SM_MBDB_T *)); 2473 extern void finis __P((bool, bool, volatile int)); 2474 extern void fixcrlf __P((char *, bool)); 2475 extern long freediskspace __P((char *, long *)); 2476 #if NETINET6 && NEEDSGETIPNODE 2477 extern void freehostent __P((struct hostent *)); 2478 #endif /* NETINET6 && NEEDSGETIPNODE */ 2479 extern char *get_column __P((char *, int, int, char *, int)); 2480 extern char *getauthinfo __P((int, bool *)); 2481 extern int getdtsize __P((void)); 2482 extern int getla __P((void)); 2483 extern char *getmodifiers __P((char *, BITMAP256)); 2484 extern BITMAP256 *getrequests __P((ENVELOPE *)); 2485 extern char *getvendor __P((int)); 2486 extern void help __P((char *, ENVELOPE *)); 2487 extern void init_md __P((int, char **)); 2488 extern void initdaemon __P((void)); 2489 extern void inithostmaps __P((void)); 2490 extern void initmacros __P((ENVELOPE *)); 2491 extern void initsetproctitle __P((int, char **, char **)); 2492 extern void init_vendor_macros __P((ENVELOPE *)); 2493 extern SIGFUNC_DECL intsig __P((int)); 2494 extern bool isloopback __P((SOCKADDR sa)); 2495 extern void load_if_names __P((void)); 2496 extern bool lockfile __P((int, char *, char *, int)); 2497 extern void log_sendmail_pid __P((ENVELOPE *)); 2498 extern void logundelrcpts __P((ENVELOPE *, char *, int, bool)); 2499 extern char lower __P((int)); 2500 extern void makelower __P((char *)); 2501 extern int makeconnection_ds __P((char *, MCI *)); 2502 extern int makeconnection __P((char *, volatile unsigned int, MCI *, ENVELOPE *, time_t)); 2503 extern void makeworkgroups __P((void)); 2504 extern void markfailure __P((ENVELOPE *, ADDRESS *, MCI *, int, bool)); 2505 extern void mark_work_group_restart __P((int, int)); 2506 extern char * munchstring __P((char *, char **, int)); 2507 extern struct hostent *myhostname __P((char *, int)); 2508 extern char *newstr __P((const char *)); 2509 #if NISPLUS 2510 extern char *nisplus_default_domain __P((void)); /* extern for Sun */ 2511 #endif /* NISPLUS */ 2512 extern bool path_is_dir __P((char *, bool)); 2513 extern int pickqdir __P((QUEUEGRP *qg, long fsize, ENVELOPE *e)); 2514 extern char *pintvl __P((time_t, bool)); 2515 extern void printav __P((SM_FILE_T *, char **)); 2516 extern void printmailer __P((SM_FILE_T *, MAILER *)); 2517 extern void printnqe __P((SM_FILE_T *, char *)); 2518 extern void printopenfds __P((bool)); 2519 extern void printqueue __P((void)); 2520 extern void printrules __P((void)); 2521 extern pid_t prog_open __P((char **, int *, ENVELOPE *)); 2522 extern void putline __P((char *, MCI *)); 2523 extern void putxline __P((char *, size_t, MCI *, int)); 2524 extern void queueup_macros __P((int, SM_FILE_T *, ENVELOPE *)); 2525 extern void readcf __P((char *, bool, ENVELOPE *)); 2526 extern SIGFUNC_DECL reapchild __P((int)); 2527 extern int releasesignal __P((int)); 2528 extern void resetlimits __P((void)); 2529 extern void restart_daemon __P((void)); 2530 extern void restart_marked_work_groups __P((void)); 2531 extern bool rfc822_string __P((char *)); 2532 extern bool savemail __P((ENVELOPE *, bool)); 2533 extern void seed_random __P((void)); 2534 extern void sendtoargv __P((char **, ENVELOPE *)); 2535 extern void setclientoptions __P((char *)); 2536 extern bool setdaemonoptions __P((char *)); 2537 extern void setdefaults __P((ENVELOPE *)); 2538 extern void setdefuser __P((void)); 2539 extern bool setvendor __P((char *)); 2540 extern void set_op_mode __P((int)); 2541 extern void setoption __P((int, char *, bool, bool, ENVELOPE *)); 2542 extern sigfunc_t setsignal __P((int, sigfunc_t)); 2543 extern void setuserenv __P((const char *, const char *)); 2544 extern void settime __P((ENVELOPE *)); 2545 extern char *sfgets __P((char *, int, SM_FILE_T *, time_t, char *)); 2546 extern char *shortenstring __P((const char *, size_t)); 2547 extern char *shorten_hostname __P((char [])); 2548 extern bool shorten_rfc822_string __P((char *, size_t)); 2549 extern void shutdown_daemon __P((void)); 2550 extern void sm_closefrom __P((int lowest, int highest)); 2551 extern void sm_close_on_exec __P((int lowest, int highest)); 2552 extern struct hostent *sm_gethostbyname __P((char *, int)); 2553 extern struct hostent *sm_gethostbyaddr __P((char *, int, int)); 2554 extern void sm_getla __P((void)); 2555 extern struct passwd *sm_getpwnam __P((char *)); 2556 extern struct passwd *sm_getpwuid __P((UID_T)); 2557 extern void sm_setproctitle __P((bool, ENVELOPE *, const char *, ...)); 2558 extern pid_t sm_wait __P((int *)); 2559 extern bool split_by_recipient __P((ENVELOPE *e)); 2560 extern void stop_sendmail __P((void)); 2561 extern char *str2prt __P((char *)); 2562 extern void stripbackslash __P((char *)); 2563 extern bool strreplnonprt __P((char *, int)); 2564 extern bool strcontainedin __P((bool, char *, char *)); 2565 extern int switch_map_find __P((char *, char *[], short [])); 2566 extern bool transienterror __P((int)); 2567 #if _FFR_BESTMX_BETTER_TRUNCATION || _FFR_DNSMAP_MULTI 2568 extern void truncate_at_delim __P((char *, size_t, int)); 2569 #endif /* _FFR_BESTMX_BETTER_TRUNCATION || _FFR_DNSMAP_MULTI */ 2570 extern void tTflag __P((char *)); 2571 extern void tTsetup __P((unsigned char *, unsigned int, char *)); 2572 extern SIGFUNC_DECL tick __P((int)); 2573 extern char *ttypath __P((void)); 2574 extern void unlockqueue __P((ENVELOPE *)); 2575 #if !HASUNSETENV 2576 extern void unsetenv __P((char *)); 2577 #endif /* !HASUNSETENV */ 2578 2579 /* update file system information: +/- some blocks */ 2580 #if SM_CONF_SHM 2581 extern void upd_qs __P((ENVELOPE *, bool, bool)); 2582 # define updfs(e, delete, avail) upd_qs(e, delete, avail) 2583 #else /* SM_CONF_SHM */ 2584 # define updfs(e, delete, avail) 2585 #endif /* SM_CONF_SHM */ 2586 2587 extern char *username __P((void)); 2588 extern bool usershellok __P((char *, char *)); 2589 extern void vendor_post_defaults __P((ENVELOPE *)); 2590 extern void vendor_pre_defaults __P((ENVELOPE *)); 2591 extern int waitfor __P((pid_t)); 2592 extern bool writable __P((char *, ADDRESS *, long)); 2593 #if SM_HEAP_CHECK 2594 # define xalloc(size) xalloc_tagged(size, __FILE__, __LINE__) 2595 extern char *xalloc_tagged __P((int, char*, int)); 2596 #else /* SM_HEAP_CHECK */ 2597 extern char *xalloc __P((int)); 2598 #endif /* SM_HEAP_CHECK */ 2599 extern void xputs __P((SM_FILE_T *, const char *)); 2600 extern char *xtextify __P((char *, char *)); 2601 extern bool xtextok __P((char *)); 2602 extern int xunlink __P((char *)); 2603 extern char *xuntextify __P((char *)); 2604 2605 2606 #endif /* ! _SENDMAIL_H */ 2607