1 /* 2 * Copyright (c) 1998-2003 Sendmail, Inc. and its suppliers. 3 * All rights reserved. 4 * Copyright (c) 1983, 1995-1997 Eric P. Allman. All rights reserved. 5 * Copyright (c) 1988, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * By using this file, you agree to the terms and conditions set 9 * forth in the LICENSE file which can be found at the top level of 10 * the sendmail distribution. 11 */ 12 13 /* 14 ** SENDMAIL.H -- MTA-specific definitions for sendmail. 15 */ 16 17 #ifndef _SENDMAIL_H 18 # define _SENDMAIL_H 1 19 20 #ifdef _DEFINE 21 # define EXTERN 22 #else /* _DEFINE */ 23 # define EXTERN extern 24 #endif /* _DEFINE */ 25 26 27 #include <unistd.h> 28 29 #include <stddef.h> 30 #include <stdlib.h> 31 #include <stdio.h> 32 #include <ctype.h> 33 #include <setjmp.h> 34 #include <string.h> 35 #include <time.h> 36 # ifdef EX_OK 37 # undef EX_OK /* for SVr4.2 SMP */ 38 # endif /* EX_OK */ 39 40 #include "sendmail/sendmail.h" 41 42 /* profiling? */ 43 #if MONCONTROL 44 # define SM_PROF(x) moncontrol(x) 45 #else /* MONCONTROL */ 46 # define SM_PROF(x) 47 #endif /* MONCONTROL */ 48 49 #ifdef _DEFINE 50 # ifndef lint 51 SM_UNUSED(static char SmailId[]) = "@(#)$Id: sendmail.h,v 8.919.2.16 2003/01/18 00:41:50 gshapiro Exp $"; 52 # endif /* ! lint */ 53 #endif /* _DEFINE */ 54 55 #include "bf.h" 56 #include "timers.h" 57 #include <sm/exc.h> 58 #include <sm/heap.h> 59 #include <sm/debug.h> 60 #include <sm/rpool.h> 61 #include <sm/io.h> 62 #include <sm/path.h> 63 #include <sm/signal.h> 64 #include <sm/clock.h> 65 #include <sm/mbdb.h> 66 #include <sm/errstring.h> 67 #include <sm/sysexits.h> 68 #include <sm/shm.h> 69 70 #ifdef LOG 71 # include <syslog.h> 72 #endif /* LOG */ 73 74 75 76 # if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 77 # include <sys/socket.h> 78 # endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */ 79 # if NETUNIX 80 # include <sys/un.h> 81 # endif /* NETUNIX */ 82 # if NETINET || NETINET6 83 # include <netinet/in.h> 84 # endif /* NETINET || NETINET6 */ 85 # if NETINET6 86 /* 87 ** There is no standard yet for IPv6 includes. 88 ** Specify OS specific implementation in conf.h 89 */ 90 # endif /* NETINET6 */ 91 # if NETISO 92 # include <netiso/iso.h> 93 # endif /* NETISO */ 94 # if NETNS 95 # include <netns/ns.h> 96 # endif /* NETNS */ 97 # if NETX25 98 # include <netccitt/x25.h> 99 # endif /* NETX25 */ 100 101 # if NAMED_BIND 102 # include <arpa/nameser.h> 103 # ifdef NOERROR 104 # undef NOERROR /* avoid <sys/streams.h> conflict */ 105 # endif /* NOERROR */ 106 # include <resolv.h> 107 # else /* NAMED_BIND */ 108 # undef SM_SET_H_ERRNO 109 # define SM_SET_H_ERRNO(err) 110 # endif /* NAMED_BIND */ 111 112 # if HESIOD 113 # include <hesiod.h> 114 # if !defined(HES_ER_OK) || defined(HESIOD_INTERFACES) 115 # define HESIOD_INIT /* support for the new interface */ 116 # endif /* !defined(HES_ER_OK) || defined(HESIOD_INTERFACES) */ 117 # endif /* HESIOD */ 118 119 #if STARTTLS 120 # include <openssl/ssl.h> 121 # if !TLS_NO_RSA 122 # define RSA_KEYLENGTH 512 123 # endif /* !TLS_NO_RSA */ 124 #endif /* STARTTLS */ 125 126 #if SASL /* include the sasl include files if we have them */ 127 128 129 # if SASL == 2 || SASL >= 20000 130 # include <sasl/sasl.h> 131 # include <sasl/saslutil.h> 132 # else /* SASL == 2 || SASL >= 20000 */ 133 # include <sasl.h> 134 # include <saslutil.h> 135 # endif /* SASL == 2 || SASL >= 20000 */ 136 # if defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) 137 # define SASL_VERSION (SASL_VERSION_MAJOR * 10000) + (SASL_VERSION_MINOR * 100) + SASL_VERSION_STEP 138 # if SASL == 1 || SASL == 2 139 # undef SASL 140 # define SASL SASL_VERSION 141 # else /* SASL == 1 || SASL == 2 */ 142 # if SASL != SASL_VERSION 143 ERROR README: -DSASL (SASL) does not agree with the version of the CYRUS_SASL library (SASL_VERSION) 144 ERROR README: see README! 145 # endif /* SASL != SASL_VERSION */ 146 # endif /* SASL == 1 || SASL == 2 */ 147 # else /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */ 148 # if SASL == 1 149 ERROR README: please set -DSASL to the version of the CYRUS_SASL library 150 ERROR README: see README! 151 # endif /* SASL == 1 */ 152 # endif /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */ 153 #endif /* SASL */ 154 155 /* 156 ** Following are "sort of" configuration constants, but they should 157 ** be pretty solid on most architectures today. They have to be 158 ** defined after <arpa/nameser.h> because some versions of that 159 ** file also define them. In all cases, we can't use sizeof because 160 ** some systems (e.g., Crays) always treat everything as being at 161 ** least 64 bits. 162 */ 163 164 #ifndef INADDRSZ 165 # define INADDRSZ 4 /* size of an IPv4 address in bytes */ 166 #endif /* ! INADDRSZ */ 167 #ifndef IN6ADDRSZ 168 # define IN6ADDRSZ 16 /* size of an IPv6 address in bytes */ 169 #endif /* ! IN6ADDRSZ */ 170 #ifndef INT16SZ 171 # define INT16SZ 2 /* size of a 16 bit integer in bytes */ 172 #endif /* ! INT16SZ */ 173 #ifndef INT32SZ 174 # define INT32SZ 4 /* size of a 32 bit integer in bytes */ 175 #endif /* ! INT32SZ */ 176 #ifndef INADDR_LOOPBACK 177 # define INADDR_LOOPBACK 0x7f000001 /* loopback address */ 178 #endif /* ! INADDR_LOOPBACK */ 179 180 /* 181 ** Error return from inet_addr(3), in case not defined in /usr/include. 182 */ 183 184 #ifndef INADDR_NONE 185 # define INADDR_NONE 0xffffffff 186 #endif /* ! INADDR_NONE */ 187 188 189 /* 190 ** An 'argument class' describes the storage allocation status 191 ** of an object pointed to by an argument to a function. 192 */ 193 194 typedef enum 195 { 196 A_HEAP, /* the storage was allocated by malloc, and the 197 * ownership of the storage is ceded by the caller 198 * to the called function. */ 199 A_TEMP, /* The storage is temporary, and is only guaranteed 200 * to be valid for the duration of the function call. */ 201 A_PERM /* The storage is 'permanent': this might mean static 202 * storage, or rpool storage. */ 203 } ARGCLASS_T; 204 205 /* forward references for prototypes */ 206 typedef struct envelope ENVELOPE; 207 typedef struct mailer MAILER; 208 typedef struct queuegrp QUEUEGRP; 209 210 /* 211 ** Address structure. 212 ** Addresses are stored internally in this structure. 213 */ 214 215 struct address 216 { 217 char *q_paddr; /* the printname for the address */ 218 char *q_user; /* user name */ 219 char *q_ruser; /* real user name, or NULL if q_user */ 220 char *q_host; /* host name */ 221 struct mailer *q_mailer; /* mailer to use */ 222 unsigned long q_flags; /* status flags, see below */ 223 uid_t q_uid; /* user-id of receiver (if known) */ 224 gid_t q_gid; /* group-id of receiver (if known) */ 225 char *q_home; /* home dir (local mailer only) */ 226 char *q_fullname; /* full name if known */ 227 struct address *q_next; /* chain */ 228 struct address *q_alias; /* address this results from */ 229 char *q_owner; /* owner of q_alias */ 230 struct address *q_tchain; /* temporary use chain */ 231 #if PIPELINING 232 struct address *q_pchain; /* chain for pipelining */ 233 #endif /* PIPELINING */ 234 char *q_finalrcpt; /* Final-Recipient: DSN header */ 235 char *q_orcpt; /* ORCPT parameter from RCPT TO: line */ 236 char *q_status; /* status code for DSNs */ 237 char *q_rstatus; /* remote status message for DSNs */ 238 time_t q_statdate; /* date of status messages */ 239 char *q_statmta; /* MTA generating q_rstatus */ 240 short q_state; /* address state, see below */ 241 char *q_signature; /* MX-based sorting value */ 242 int q_qgrp; /* index into queue groups */ 243 int q_qdir; /* queue directory inside group */ 244 char *q_message; /* error message */ 245 }; 246 247 typedef struct address ADDRESS; 248 249 /* bit values for q_flags */ 250 #define QGOODUID 0x00000001 /* the q_uid q_gid fields are good */ 251 #define QPRIMARY 0x00000002 /* set from RCPT or argv */ 252 #define QNOTREMOTE 0x00000004 /* address not for remote forwarding */ 253 #define QSELFREF 0x00000008 /* this address references itself */ 254 #define QBOGUSSHELL 0x00000010 /* user has no valid shell listed */ 255 #define QUNSAFEADDR 0x00000020 /* address acquired via unsafe path */ 256 #define QPINGONSUCCESS 0x00000040 /* give return on successful delivery */ 257 #define QPINGONFAILURE 0x00000080 /* give return on failure */ 258 #define QPINGONDELAY 0x00000100 /* give return on message delay */ 259 #define QHASNOTIFY 0x00000200 /* propagate notify parameter */ 260 #define QRELAYED 0x00000400 /* DSN: relayed to non-DSN aware sys */ 261 #define QEXPANDED 0x00000800 /* DSN: undergone list expansion */ 262 #define QDELIVERED 0x00001000 /* DSN: successful final delivery */ 263 #define QDELAYED 0x00002000 /* DSN: message delayed */ 264 #define QALIAS 0x00004000 /* expanded alias */ 265 #define QBYTRACE 0x00008000 /* DeliverBy: trace */ 266 #define QBYNDELAY 0x00010000 /* DeliverBy: notify, delay */ 267 #define QBYNRELAY 0x00020000 /* DeliverBy: notify, relayed */ 268 #define QTHISPASS 0x40000000 /* temp: address set this pass */ 269 #define QRCPTOK 0x80000000 /* recipient() processed address */ 270 271 #define Q_PINGFLAGS (QPINGONSUCCESS|QPINGONFAILURE|QPINGONDELAY) 272 273 /* values for q_state */ 274 #define QS_OK 0 /* address ok (for now)/not yet tried */ 275 #define QS_SENT 1 /* good address, delivery complete */ 276 #define QS_BADADDR 2 /* illegal address */ 277 #define QS_QUEUEUP 3 /* save address in queue */ 278 #define QS_RETRY 4 /* retry delivery for next MX */ 279 #define QS_VERIFIED 5 /* verified, but not expanded */ 280 281 /* 282 ** Notice: all of the following values are variations of QS_DONTSEND. 283 ** If new states are added, they must be inserted in the proper place! 284 ** See the macro definition of QS_IS_DEAD() down below. 285 */ 286 287 #define QS_DONTSEND 6 /* don't send to this address */ 288 #define QS_EXPANDED 7 /* expanded */ 289 #define QS_SENDER 8 /* message sender (MeToo) */ 290 #define QS_CLONED 9 /* addr cloned to split envelope */ 291 #define QS_DISCARDED 10 /* rcpt discarded (EF_DISCARD) */ 292 #define QS_REPLACED 11 /* maplocaluser()/UserDB replaced */ 293 #define QS_REMOVED 12 /* removed (removefromlist()) */ 294 #define QS_DUPLICATE 13 /* duplicate suppressed */ 295 #define QS_INCLUDED 14 /* :include: delivery */ 296 #define QS_FATALERR 15 /* fatal error, don't deliver */ 297 298 /* address state testing primitives */ 299 #define QS_IS_OK(s) ((s) == QS_OK) 300 #define QS_IS_SENT(s) ((s) == QS_SENT) 301 #define QS_IS_BADADDR(s) ((s) == QS_BADADDR) 302 #define QS_IS_QUEUEUP(s) ((s) == QS_QUEUEUP) 303 #define QS_IS_RETRY(s) ((s) == QS_RETRY) 304 #define QS_IS_VERIFIED(s) ((s) == QS_VERIFIED) 305 #define QS_IS_EXPANDED(s) ((s) == QS_EXPANDED) 306 #define QS_IS_REMOVED(s) ((s) == QS_REMOVED) 307 #define QS_IS_UNDELIVERED(s) ((s) == QS_OK || \ 308 (s) == QS_QUEUEUP || \ 309 (s) == QS_RETRY || \ 310 (s) == QS_VERIFIED) 311 #define QS_IS_UNMARKED(s) ((s) == QS_OK || \ 312 (s) == QS_RETRY) 313 #define QS_IS_SENDABLE(s) ((s) == QS_OK || \ 314 (s) == QS_QUEUEUP || \ 315 (s) == QS_RETRY) 316 #define QS_IS_ATTEMPTED(s) ((s) == QS_QUEUEUP || \ 317 (s) == QS_RETRY || \ 318 (s) == QS_SENT) 319 #define QS_IS_DEAD(s) ((s) >= QS_DONTSEND) 320 321 322 #define NULLADDR ((ADDRESS *) NULL) 323 324 extern ADDRESS NullAddress; /* a null (template) address [main.c] */ 325 326 /* functions */ 327 extern void cataddr __P((char **, char **, char *, int, int)); 328 extern char *crackaddr __P((char *, ENVELOPE *)); 329 extern bool emptyaddr __P((ADDRESS *)); 330 extern ADDRESS *getctladdr __P((ADDRESS *)); 331 extern int include __P((char *, bool, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 332 extern bool invalidaddr __P((char *, char *, bool)); 333 extern ADDRESS *parseaddr __P((char *, ADDRESS *, int, int, char **, 334 ENVELOPE *, bool)); 335 extern char **prescan __P((char *, int, char[], int, char **, unsigned char *)); 336 extern void printaddr __P((ADDRESS *, bool)); 337 extern ADDRESS *recipient __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 338 extern char *remotename __P((char *, MAILER *, int, int *, ENVELOPE *)); 339 extern int rewrite __P((char **, int, int, ENVELOPE *, int)); 340 extern bool sameaddr __P((ADDRESS *, ADDRESS *)); 341 extern int sendtolist __P((char *, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 342 #if MILTER 343 extern int removefromlist __P((char *, ADDRESS **, ENVELOPE *)); 344 #endif /* MILTER */ 345 extern void setsender __P((char *, ENVELOPE *, char **, int, bool)); 346 347 /* macro to simplify the common call to rewrite() */ 348 #define REWRITE(pvp, rs, env) rewrite(pvp, rs, 0, env, MAXATOM) 349 350 /* 351 ** Mailer definition structure. 352 ** Every mailer known to the system is declared in this 353 ** structure. It defines the pathname of the mailer, some 354 ** flags associated with it, and the argument vector to 355 ** pass to it. The flags are defined in conf.c 356 ** 357 ** The argument vector is expanded before actual use. All 358 ** words except the first are passed through the macro 359 ** processor. 360 */ 361 362 struct mailer 363 { 364 char *m_name; /* symbolic name of this mailer */ 365 char *m_mailer; /* pathname of the mailer to use */ 366 char *m_mtatype; /* type of this MTA */ 367 char *m_addrtype; /* type for addresses */ 368 char *m_diagtype; /* type for diagnostics */ 369 BITMAP256 m_flags; /* status flags, see below */ 370 short m_mno; /* mailer number internally */ 371 short m_nice; /* niceness to run at (mostly for prog) */ 372 char **m_argv; /* template argument vector */ 373 short m_sh_rwset; /* rewrite set: sender header addresses */ 374 short m_se_rwset; /* rewrite set: sender envelope addresses */ 375 short m_rh_rwset; /* rewrite set: recipient header addresses */ 376 short m_re_rwset; /* rewrite set: recipient envelope addresses */ 377 char *m_eol; /* end of line string */ 378 long m_maxsize; /* size limit on message to this mailer */ 379 int m_linelimit; /* max # characters per line */ 380 int m_maxdeliveries; /* max deliveries per mailer connection */ 381 char *m_execdir; /* directory to chdir to before execv */ 382 char *m_rootdir; /* directory to chroot to before execv */ 383 uid_t m_uid; /* UID to run as */ 384 gid_t m_gid; /* GID to run as */ 385 char *m_defcharset; /* default character set */ 386 time_t m_wait; /* timeout to wait for end */ 387 int m_maxrcpt; /* max recipients per envelope client-side */ 388 short m_qgrp; /* queue group for this mailer */ 389 }; 390 391 /* bits for m_flags */ 392 #define M_ESMTP 'a' /* run Extended SMTP */ 393 #define M_ALIASABLE 'A' /* user can be LHS of an alias */ 394 #define M_BLANKEND 'b' /* ensure blank line at end of message */ 395 #if _FFR_STRIPBACKSL 396 # define M_STRIPBACKSL 'B' /* strip leading backslash from user */ 397 #endif /* _FFR_STRIPBACKSL */ 398 #define M_NOCOMMENT 'c' /* don't include comment part of address */ 399 #define M_CANONICAL 'C' /* make addresses canonical "u@dom" */ 400 #define M_NOBRACKET 'd' /* never angle bracket envelope route-addrs */ 401 /* 'D' CF: include Date: */ 402 #define M_EXPENSIVE 'e' /* it costs to use this mailer.... */ 403 #define M_ESCFROM 'E' /* escape From lines to >From */ 404 #define M_FOPT 'f' /* mailer takes picky -f flag */ 405 /* 'F' CF: include From: or Resent-From: */ 406 #define M_NO_NULL_FROM 'g' /* sender of errors should be $g */ 407 #define M_HST_UPPER 'h' /* preserve host case distinction */ 408 #define M_PREHEAD 'H' /* MAIL11V3: preview headers */ 409 #define M_UDBENVELOPE 'i' /* do udbsender rewriting on envelope */ 410 #define M_INTERNAL 'I' /* SMTP to another sendmail site */ 411 #define M_UDBRECIPIENT 'j' /* do udbsender rewriting on recipient lines */ 412 #define M_NOLOOPCHECK 'k' /* don't check for loops in HELO command */ 413 #define M_CHUNKING 'K' /* CHUNKING: reserved for future use */ 414 #define M_LOCALMAILER 'l' /* delivery is to this host */ 415 #define M_LIMITS 'L' /* must enforce SMTP line limits */ 416 #define M_MUSER 'm' /* can handle multiple users at once */ 417 /* 'M' CF: include Message-Id: */ 418 #define M_NHDR 'n' /* don't insert From line */ 419 #define M_MANYSTATUS 'N' /* MAIL11V3: DATA returns multi-status */ 420 #define M_RUNASRCPT 'o' /* always run mailer as recipient */ 421 #define M_FROMPATH 'p' /* use reverse-path in MAIL FROM: */ 422 /* 'P' CF: include Return-Path: */ 423 #define M_VRFY250 'q' /* VRFY command returns 250 instead of 252 */ 424 #define M_ROPT 'r' /* mailer takes picky -r flag */ 425 #define M_SECURE_PORT 'R' /* try to send on a reserved TCP port */ 426 #define M_STRIPQ 's' /* strip quote chars from user/host */ 427 #define M_SPECIFIC_UID 'S' /* run as specific uid/gid */ 428 #define M_USR_UPPER 'u' /* preserve user case distinction */ 429 #define M_UGLYUUCP 'U' /* this wants an ugly UUCP from line */ 430 #define M_CONTENT_LEN 'v' /* add Content-Length: header (SVr4) */ 431 /* 'V' UIUC: !-relativize all addresses */ 432 #define M_HASPWENT 'w' /* check for /etc/passwd entry */ 433 /* 'x' CF: include Full-Name: */ 434 #define M_XDOT 'X' /* use hidden-dot algorithm */ 435 #define M_LMTP 'z' /* run Local Mail Transport Protocol */ 436 #define M_DIALDELAY 'Z' /* apply dial delay sleeptime */ 437 #define M_NOMX '0' /* turn off MX lookups */ 438 #define M_NONULLS '1' /* don't send null bytes */ 439 #define M_FSMTP '2' /* force SMTP (no ESMTP even if offered) */ 440 #define M_EBCDIC '3' /* extend Q-P encoding for EBCDIC */ 441 #define M_TRYRULESET5 '5' /* use ruleset 5 after local aliasing */ 442 #define M_7BITHDRS '6' /* strip headers to 7 bits even in 8 bit path */ 443 #define M_7BITS '7' /* use 7-bit path */ 444 #define M_8BITS '8' /* force "just send 8" behaviour */ 445 #define M_MAKE8BIT '9' /* convert 7 -> 8 bit if appropriate */ 446 #define M_CHECKINCLUDE ':' /* check for :include: files */ 447 #define M_CHECKPROG '|' /* check for |program addresses */ 448 #define M_CHECKFILE '/' /* check for /file addresses */ 449 #define M_CHECKUDB '@' /* user can be user database key */ 450 #define M_CHECKHDIR '~' /* SGI: check for valid home directory */ 451 #define M_HOLD '%' /* Hold delivery until ETRN/-qI/-qR/-qS */ 452 #define M_PLUS '+' /* Reserved: Used in mc for adding new flags */ 453 #define M_MINUS '-' /* Reserved: Used in mc for removing flags */ 454 455 /* functions */ 456 extern void initerrmailers __P((void)); 457 extern void makemailer __P((char *)); 458 extern void makequeue __P((char *, bool)); 459 extern void runqueueevent __P((void)); 460 #if _FFR_QUEUE_RUN_PARANOIA 461 extern bool checkqueuerunner __P((void)); 462 #endif /* _FFR_QUEUE_RUN_PARANOIA */ 463 464 EXTERN MAILER *FileMailer; /* ptr to *file* mailer */ 465 EXTERN MAILER *InclMailer; /* ptr to *include* mailer */ 466 EXTERN MAILER *LocalMailer; /* ptr to local mailer */ 467 EXTERN MAILER *ProgMailer; /* ptr to program mailer */ 468 EXTERN MAILER *Mailer[MAXMAILERS + 1]; 469 470 /* 471 ** Queue group definition structure. 472 ** Every queue group known to the system is declared in this structure. 473 ** It defines the basic pathname of the queue group, some flags 474 ** associated with it, and the argument vector to pass to it. 475 */ 476 477 struct qpaths_s 478 { 479 char *qp_name; /* name of queue dir, relative path */ 480 short qp_subdirs; /* use subdirs? */ 481 short qp_fsysidx; /* file system index of this directory */ 482 # if SM_CONF_SHM 483 int qp_idx; /* index into array for queue information */ 484 # endif /* SM_CONF_SHM */ 485 }; 486 487 typedef struct qpaths_s QPATHS; 488 489 struct queuegrp 490 { 491 char *qg_name; /* symbolic name of this queue group */ 492 493 /* 494 ** For now this is the same across all queue groups. 495 ** Otherwise we have to play around with chdir(). 496 */ 497 498 char *qg_qdir; /* common component of queue directory */ 499 short qg_index; /* queue number internally, index in Queue[] */ 500 int qg_maxqrun; /* max # of jobs in 1 queuerun */ 501 int qg_numqueues; /* number of queues in this queue */ 502 503 /* 504 ** qg_queueintvl == 0 denotes that no individual value is used. 505 ** Whatever accesses this must deal with "<= 0" as 506 ** "not set, use appropriate default". 507 */ 508 509 time_t qg_queueintvl; /* interval for queue runs */ 510 QPATHS *qg_qpaths; /* list of queue directories */ 511 BITMAP256 qg_flags; /* status flags, see below */ 512 short qg_nice; /* niceness for queue run */ 513 int qg_wgrp; /* Assigned to this work group */ 514 int qg_maxlist; /* max items in work queue for this group */ 515 int qg_curnum; /* current number of queue for queue runs */ 516 int qg_maxrcpt; /* max recipients per envelope, 0==no limit */ 517 518 time_t qg_nextrun; /* time for next queue runs */ 519 #if _FFR_QUEUE_GROUP_SORTORDER 520 short qg_sortorder; /* how do we sort this queuerun */ 521 #endif /* _FFR_QUEUE_GROUP_SORTORDER */ 522 #if 0 523 long qg_wkrcptfact; /* multiplier for # recipients -> priority */ 524 long qg_qfactor; /* slope of queue function */ 525 bool qg_doqueuerun; /* XXX flag is it time to do a queuerun */ 526 #endif /* 0 */ 527 }; 528 529 /* bits for qg_flags (XXX: unused as of now) */ 530 #define QD_DEFINED ((char) 1) /* queue group has been defined */ 531 #define QD_FORK 'f' /* fork queue runs */ 532 533 extern void filesys_update __P((void)); 534 #if _FFR_ANY_FREE_FS 535 extern bool filesys_free __P((long)); 536 #endif /* _FFR_ANY_FREE_FS */ 537 538 #if SASL 539 /* 540 ** SASL 541 */ 542 543 /* lines in authinfo file or index into SASL_AI_T */ 544 # define SASL_WRONG (-1) 545 # define SASL_USER 0 /* authorization id (user) */ 546 # define SASL_AUTHID 1 /* authentication id */ 547 # define SASL_PASSWORD 2 /* password fuer authid */ 548 # define SASL_DEFREALM 3 /* realm to use */ 549 # define SASL_MECHLIST 4 /* list of mechanisms to try */ 550 # define SASL_ID_REALM 5 /* authid@defrealm */ 551 552 /* 553 ** Current mechanism; this is just used to convey information between 554 ** invocation of SASL callback functions. 555 ** It must be last in the list, because it's not allocated by us 556 ** and hence we don't free() it. 557 */ 558 # define SASL_MECH 6 559 # define SASL_ENTRIES 7 /* number of entries in array */ 560 561 # define SASL_USER_BIT (1 << SASL_USER) 562 # define SASL_AUTHID_BIT (1 << SASL_AUTHID) 563 # define SASL_PASSWORD_BIT (1 << SASL_PASSWORD) 564 # define SASL_DEFREALM_BIT (1 << SASL_DEFREALM) 565 # define SASL_MECHLIST_BIT (1 << SASL_MECHLIST) 566 567 /* authenticated? */ 568 # define SASL_NOT_AUTH 0 /* not authenticated */ 569 # define SASL_PROC_AUTH 1 /* in process of authenticating */ 570 # define SASL_IS_AUTH 2 /* authenticated */ 571 572 /* SASL options */ 573 # define SASL_AUTH_AUTH 0x1000 /* use auth= only if authenticated */ 574 # if SASL >= 20101 575 # define SASL_SEC_MASK SASL_SEC_MAXIMUM /* mask for SASL_SEC_* values: sasl.h */ 576 # else /* SASL >= 20101 */ 577 # define SASL_SEC_MASK 0x0fff /* mask for SASL_SEC_* values: sasl.h */ 578 # if (SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 || \ 579 (SASL_SEC_NOACTIVE & SASL_SEC_MASK) == 0 || \ 580 (SASL_SEC_NODICTIONARY & SASL_SEC_MASK) == 0 || \ 581 (SASL_SEC_FORWARD_SECRECY & SASL_SEC_MASK) == 0 || \ 582 (SASL_SEC_NOANONYMOUS & SASL_SEC_MASK) == 0 || \ 583 (SASL_SEC_PASS_CREDENTIALS & SASL_SEC_MASK) == 0 584 ERROR: change SASL_SEC_MASK_ notify sendmail.org! 585 # endif /* SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 ... */ 586 # endif /* SASL >= 20101 */ 587 # define MAXOUTLEN 8192 /* length of output buffer */ 588 589 /* functions */ 590 extern char *intersect __P((char *, char *, SM_RPOOL_T *)); 591 extern char *iteminlist __P((char *, char *, char *)); 592 # if SASL >= 20000 593 extern int proxy_policy __P((sasl_conn_t *, void *, const char *, unsigned, const char *, unsigned, const char *, unsigned, struct propctx *)); 594 extern int safesaslfile __P((void *, const char *, sasl_verify_type_t)); 595 # else /* SASL >= 20000 */ 596 extern int proxy_policy __P((void *, const char *, const char *, const char **, const char **)); 597 # if SASL > 10515 598 extern int safesaslfile __P((void *, char *, int)); 599 # else /* SASL > 10515 */ 600 extern int safesaslfile __P((void *, char *)); 601 # endif /* SASL > 10515 */ 602 # endif /* SASL >= 20000 */ 603 extern void stop_sasl_client __P((void)); 604 605 /* structure to store authinfo */ 606 typedef char *SASL_AI_T[SASL_ENTRIES]; 607 608 EXTERN char *AuthMechanisms; /* AUTH mechanisms */ 609 EXTERN char *SASLInfo; /* file with AUTH info */ 610 EXTERN int SASLOpts; /* options for SASL */ 611 EXTERN int MaxSLBits; /* max. encryption bits for SASL */ 612 #endif /* SASL */ 613 614 /* 615 ** Structure to store macros. 616 */ 617 typedef struct 618 { 619 SM_RPOOL_T *mac_rpool; /* resource pool */ 620 BITMAP256 mac_allocated; /* storage has been alloc()? */ 621 char *mac_table[MAXMACROID + 1]; /* macros */ 622 } MACROS_T; 623 624 EXTERN MACROS_T GlobalMacros; 625 626 /* 627 ** Information about currently open connections to mailers, or to 628 ** hosts that we have looked up recently. 629 */ 630 631 #define MCI struct mailer_con_info 632 633 MCI 634 { 635 unsigned long mci_flags; /* flag bits, see below */ 636 short mci_errno; /* error number on last connection */ 637 short mci_herrno; /* h_errno from last DNS lookup */ 638 short mci_exitstat; /* exit status from last connection */ 639 short mci_state; /* SMTP state */ 640 int mci_deliveries; /* delivery attempts for connection */ 641 long mci_maxsize; /* max size this server will accept */ 642 SM_FILE_T *mci_in; /* input side of connection */ 643 SM_FILE_T *mci_out; /* output side of connection */ 644 pid_t mci_pid; /* process id of subordinate proc */ 645 char *mci_phase; /* SMTP phase string */ 646 struct mailer *mci_mailer; /* ptr to the mailer for this conn */ 647 char *mci_host; /* host name */ 648 char *mci_status; /* DSN status to be copied to addrs */ 649 char *mci_rstatus; /* SMTP status to be copied to addrs */ 650 time_t mci_lastuse; /* last usage time */ 651 SM_FILE_T *mci_statfile; /* long term status file */ 652 char *mci_heloname; /* name to use as HELO arg */ 653 long mci_min_by; /* minimum DELIVERBY */ 654 bool mci_retryrcpt; /* tempfail for at least one rcpt */ 655 char *mci_tolist; /* list of valid recipients */ 656 SM_RPOOL_T *mci_rpool; /* resource pool */ 657 #if PIPELINING 658 int mci_okrcpts; /* number of valid recipients */ 659 ADDRESS *mci_nextaddr; /* next address for pipelined status */ 660 #endif /* PIPELINING */ 661 #if SASL 662 SASL_AI_T mci_sai; /* authentication info */ 663 bool mci_sasl_auth; /* authenticated? */ 664 int mci_sasl_string_len; 665 char *mci_sasl_string; /* sasl reply string */ 666 char *mci_saslcap; /* SASL list of mechanisms */ 667 sasl_conn_t *mci_conn; /* SASL connection */ 668 #endif /* SASL */ 669 #if STARTTLS 670 SSL *mci_ssl; /* SSL connection */ 671 #endif /* STARTTLS */ 672 MACROS_T mci_macro; /* macro definitions */ 673 }; 674 675 676 /* flag bits */ 677 #define MCIF_VALID 0x00000001 /* this entry is valid */ 678 /* 0x00000002 unused, was MCIF_TEMP */ 679 #define MCIF_CACHED 0x00000004 /* currently in open cache */ 680 #define MCIF_ESMTP 0x00000008 /* this host speaks ESMTP */ 681 #define MCIF_EXPN 0x00000010 /* EXPN command supported */ 682 #define MCIF_SIZE 0x00000020 /* SIZE option supported */ 683 #define MCIF_8BITMIME 0x00000040 /* BODY=8BITMIME supported */ 684 #define MCIF_7BIT 0x00000080 /* strip this message to 7 bits */ 685 /* 0x00000100 unused, was MCIF_MULTSTAT: MAIL11V3: handles MULT status */ 686 #define MCIF_INHEADER 0x00000200 /* currently outputing header */ 687 #define MCIF_CVT8TO7 0x00000400 /* convert from 8 to 7 bits */ 688 #define MCIF_DSN 0x00000800 /* DSN extension supported */ 689 #define MCIF_8BITOK 0x00001000 /* OK to send 8 bit characters */ 690 #define MCIF_CVT7TO8 0x00002000 /* convert from 7 to 8 bits */ 691 #define MCIF_INMIME 0x00004000 /* currently reading MIME header */ 692 #define MCIF_AUTH 0x00008000 /* AUTH= supported */ 693 #define MCIF_AUTHACT 0x00010000 /* SASL (AUTH) active */ 694 #define MCIF_ENHSTAT 0x00020000 /* ENHANCEDSTATUSCODES supported */ 695 #define MCIF_PIPELINED 0x00040000 /* PIPELINING supported */ 696 #define MCIF_VERB 0x00080000 /* VERB supported */ 697 #if STARTTLS 698 #define MCIF_TLS 0x00100000 /* STARTTLS supported */ 699 #define MCIF_TLSACT 0x00200000 /* STARTTLS active */ 700 #define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT | MCIF_TLS) 701 #else /* STARTTLS */ 702 #define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT) 703 #endif /* STARTTLS */ 704 #define MCIF_DLVR_BY 0x00400000 /* DELIVERBY */ 705 #if _FFR_IGNORE_EXT_ON_HELO 706 # define MCIF_HELO 0x00800000 /* we used HELO: ignore extensions */ 707 #endif /* _FFR_IGNORE_EXT_ON_HELO */ 708 #define MCIF_ONLY_EHLO 0x10000000 /* use only EHLO in smtpinit */ 709 710 /* states */ 711 #define MCIS_CLOSED 0 /* no traffic on this connection */ 712 #define MCIS_OPENING 1 /* sending initial protocol */ 713 #define MCIS_OPEN 2 /* open, initial protocol sent */ 714 #define MCIS_MAIL 3 /* MAIL command sent */ 715 #define MCIS_RCPT 4 /* RCPT commands being sent */ 716 #define MCIS_DATA 5 /* DATA command sent */ 717 #define MCIS_QUITING 6 /* running quit protocol */ 718 #define MCIS_SSD 7 /* service shutting down */ 719 #define MCIS_ERROR 8 /* I/O error on connection */ 720 721 /* functions */ 722 extern void mci_cache __P((MCI *)); 723 extern void mci_dump __P((MCI *, bool)); 724 extern void mci_dump_all __P((bool)); 725 extern void mci_flush __P((bool, MCI *)); 726 extern MCI *mci_get __P((char *, MAILER *)); 727 extern int mci_lock_host __P((MCI *)); 728 extern bool mci_match __P((char *, MAILER *)); 729 extern int mci_print_persistent __P((char *, char *)); 730 extern int mci_purge_persistent __P((char *, char *)); 731 extern MCI **mci_scan __P((MCI *)); 732 extern void mci_setstat __P((MCI *, int, char *, char *)); 733 extern void mci_store_persistent __P((MCI *)); 734 extern int mci_traverse_persistent __P((int (*)(), char *)); 735 extern void mci_unlock_host __P((MCI *)); 736 737 EXTERN int MaxMciCache; /* maximum entries in MCI cache */ 738 EXTERN time_t MciCacheTimeout; /* maximum idle time on connections */ 739 EXTERN time_t MciInfoTimeout; /* how long 'til we retry down hosts */ 740 741 /* 742 ** Header structure. 743 ** This structure is used internally to store header items. 744 */ 745 746 struct header 747 { 748 char *h_field; /* the name of the field */ 749 char *h_value; /* the value of that field */ 750 struct header *h_link; /* the next header */ 751 unsigned char h_macro; /* include header if macro defined */ 752 unsigned long h_flags; /* status bits, see below */ 753 BITMAP256 h_mflags; /* m_flags bits needed */ 754 }; 755 756 typedef struct header HDR; 757 758 /* 759 ** Header information structure. 760 ** Defined in conf.c, this struct declares the header fields 761 ** that have some magic meaning. 762 */ 763 764 struct hdrinfo 765 { 766 char *hi_field; /* the name of the field */ 767 unsigned long hi_flags; /* status bits, see below */ 768 char *hi_ruleset; /* validity check ruleset */ 769 }; 770 771 extern struct hdrinfo HdrInfo[]; 772 773 /* bits for h_flags and hi_flags */ 774 #define H_EOH 0x00000001 /* field terminates header */ 775 #define H_RCPT 0x00000002 /* contains recipient addresses */ 776 #define H_DEFAULT 0x00000004 /* if another value is found, drop this */ 777 #define H_RESENT 0x00000008 /* this address is a "Resent-..." address */ 778 #define H_CHECK 0x00000010 /* check h_mflags against m_flags */ 779 #define H_ACHECK 0x00000020 /* ditto, but always (not just default) */ 780 #define H_FORCE 0x00000040 /* force this field, even if default */ 781 #define H_TRACE 0x00000080 /* this field contains trace information */ 782 #define H_FROM 0x00000100 /* this is a from-type field */ 783 #define H_VALID 0x00000200 /* this field has a validated value */ 784 #define H_RECEIPTTO 0x00000400 /* field has return receipt info */ 785 #define H_ERRORSTO 0x00000800 /* field has error address info */ 786 #define H_CTE 0x00001000 /* field is a content-transfer-encoding */ 787 #define H_CTYPE 0x00002000 /* this is a content-type field */ 788 #define H_BCC 0x00004000 /* Bcc: header: strip value or delete */ 789 #define H_ENCODABLE 0x00008000 /* field can be RFC 1522 encoded */ 790 #define H_STRIPCOMM 0x00010000 /* header check: strip comments */ 791 #define H_BINDLATE 0x00020000 /* only expand macros at deliver */ 792 #define H_USER 0x00040000 /* header came from the user/SMTP */ 793 794 /* bits for chompheader() */ 795 #define CHHDR_DEF 0x0001 /* default header */ 796 #define CHHDR_CHECK 0x0002 /* call ruleset for header */ 797 #define CHHDR_USER 0x0004 /* header from user */ 798 #define CHHDR_QUEUE 0x0008 /* header from queue file */ 799 800 /* functions */ 801 extern void addheader __P((char *, char *, int, ENVELOPE *)); 802 extern unsigned long chompheader __P((char *, int, HDR **, ENVELOPE *)); 803 extern void commaize __P((HDR *, char *, bool, MCI *, ENVELOPE *)); 804 extern HDR *copyheader __P((HDR *, SM_RPOOL_T *)); 805 extern void eatheader __P((ENVELOPE *, bool, bool)); 806 extern char *hvalue __P((char *, HDR *)); 807 extern bool isheader __P((char *)); 808 extern void putfromline __P((MCI *, ENVELOPE *)); 809 extern void setupheaders __P((void)); 810 811 /* 812 ** Performance monitoring 813 */ 814 815 #define TIMERS struct sm_timers 816 817 TIMERS 818 { 819 TIMER ti_overall; /* the whole process */ 820 }; 821 822 823 #define PUSHTIMER(l, t) { if (tTd(98, l)) pushtimer(&t); } 824 #define POPTIMER(l, t) { if (tTd(98, l)) poptimer(&t); } 825 826 /* 827 ** Envelope structure. 828 ** This structure defines the message itself. There is usually 829 ** only one of these -- for the message that we originally read 830 ** and which is our primary interest -- but other envelopes can 831 ** be generated during processing. For example, error messages 832 ** will have their own envelope. 833 */ 834 835 struct envelope 836 { 837 HDR *e_header; /* head of header list */ 838 long e_msgpriority; /* adjusted priority of this message */ 839 time_t e_ctime; /* time message appeared in the queue */ 840 char *e_to; /* (list of) target person(s) */ 841 ADDRESS e_from; /* the person it is from */ 842 char *e_sender; /* e_from.q_paddr w comments stripped */ 843 char **e_fromdomain; /* the domain part of the sender */ 844 ADDRESS *e_sendqueue; /* list of message recipients */ 845 ADDRESS *e_errorqueue; /* the queue for error responses */ 846 847 /* 848 ** Overflow detection is based on < 0, so don't change this 849 ** to unsigned. We don't use unsigned and == ULONG_MAX because 850 ** some libc's don't have strtoul(), see mail_esmtp_args(). 851 */ 852 853 long e_msgsize; /* size of the message in bytes */ 854 char *e_msgid; /* message id (for logging) */ 855 unsigned long e_flags; /* flags, see below */ 856 int e_nrcpts; /* number of recipients */ 857 short e_class; /* msg class (priority, junk, etc.) */ 858 short e_hopcount; /* number of times processed */ 859 short e_nsent; /* number of sends since checkpoint */ 860 short e_sendmode; /* message send mode */ 861 short e_errormode; /* error return mode */ 862 short e_timeoutclass; /* message timeout class */ 863 void (*e_puthdr)__P((MCI *, HDR *, ENVELOPE *, int)); 864 /* function to put header of message */ 865 void (*e_putbody)__P((MCI *, ENVELOPE *, char *)); 866 /* function to put body of message */ 867 ENVELOPE *e_parent; /* the message this one encloses */ 868 ENVELOPE *e_sibling; /* the next envelope of interest */ 869 char *e_bodytype; /* type of message body */ 870 SM_FILE_T *e_dfp; /* data file */ 871 char *e_id; /* code for this entry in queue */ 872 int e_qgrp; /* queue group (index into queues) */ 873 int e_qdir; /* index into queue directories */ 874 int e_dfqgrp; /* data file queue group index */ 875 int e_dfqdir; /* data file queue directory index */ 876 int e_xfqgrp; /* queue group (index into queues) */ 877 int e_xfqdir; /* index into queue directories (xf) */ 878 SM_FILE_T *e_xfp; /* transcript file */ 879 SM_FILE_T *e_lockfp; /* the lock file for this message */ 880 char *e_message; /* error message; readonly; NULL, or 881 * static storage, or allocated from 882 * e_rpool */ 883 char *e_statmsg; /* stat msg (changes per delivery). 884 * readonly. NULL or allocated from 885 * e_rpool. */ 886 #if _FFR_QUARANTINE 887 char *e_quarmsg; /* why envelope is quarantined */ 888 char e_qfletter; /* queue file letter on disk */ 889 #endif /* _FFR_QUARANTINE */ 890 char *e_msgboundary; /* MIME-style message part boundary */ 891 char *e_origrcpt; /* original recipient (one only) */ 892 char *e_envid; /* envelope id from MAIL FROM: line */ 893 char *e_status; /* DSN status for this message */ 894 time_t e_dtime; /* time of last delivery attempt */ 895 int e_ntries; /* number of delivery attempts */ 896 dev_t e_dfdev; /* data file device (crash recovery) */ 897 ino_t e_dfino; /* data file inode (crash recovery) */ 898 MACROS_T e_macro; /* macro definitions */ 899 MCI *e_mci; /* connection info */ 900 char *e_auth_param; /* readonly; NULL or static storage or 901 * allocated from e_rpool */ 902 TIMERS e_timers; /* per job timers */ 903 #if _FFR_QUEUEDELAY 904 int e_queuealg; /* algorithm for queue delay */ 905 time_t e_queuedelay; /* current delay */ 906 #endif /* _FFR_QUEUEDELAY */ 907 long e_deliver_by; /* deliver by */ 908 int e_dlvr_flag; /* deliver by flag */ 909 SM_RPOOL_T *e_rpool; /* resource pool for this envelope */ 910 }; 911 912 /* values for e_flags */ 913 #define EF_OLDSTYLE 0x00000001L /* use spaces (not commas) in hdrs */ 914 #define EF_INQUEUE 0x00000002L /* this message is fully queued */ 915 #define EF_NO_BODY_RETN 0x00000004L /* omit message body on error */ 916 #define EF_CLRQUEUE 0x00000008L /* disk copy is no longer needed */ 917 #define EF_SENDRECEIPT 0x00000010L /* send a return receipt */ 918 #define EF_FATALERRS 0x00000020L /* fatal errors occurred */ 919 #define EF_DELETE_BCC 0x00000040L /* delete Bcc: headers entirely */ 920 #define EF_RESPONSE 0x00000080L /* this is an error or return receipt */ 921 #define EF_RESENT 0x00000100L /* this message is being forwarded */ 922 #define EF_VRFYONLY 0x00000200L /* verify only (don't expand aliases) */ 923 #define EF_WARNING 0x00000400L /* warning message has been sent */ 924 #define EF_QUEUERUN 0x00000800L /* this envelope is from queue */ 925 #define EF_GLOBALERRS 0x00001000L /* treat errors as global */ 926 #define EF_PM_NOTIFY 0x00002000L /* send return mail to postmaster */ 927 #define EF_METOO 0x00004000L /* send to me too */ 928 #define EF_LOGSENDER 0x00008000L /* need to log the sender */ 929 #define EF_NORECEIPT 0x00010000L /* suppress all return-receipts */ 930 #define EF_HAS8BIT 0x00020000L /* at least one 8-bit char in body */ 931 #define EF_NL_NOT_EOL 0x00040000L /* don't accept raw NL as EOLine */ 932 #define EF_CRLF_NOT_EOL 0x00080000L /* don't accept CR-LF as EOLine */ 933 #define EF_RET_PARAM 0x00100000L /* RCPT command had RET argument */ 934 #define EF_HAS_DF 0x00200000L /* set when data file is instantiated */ 935 #define EF_IS_MIME 0x00400000L /* really is a MIME message */ 936 #define EF_DONT_MIME 0x00800000L /* never MIME this message */ 937 #define EF_DISCARD 0x01000000L /* discard the message */ 938 #define EF_TOOBIG 0x02000000L /* message is too big */ 939 #define EF_SPLIT 0x04000000L /* envelope has been split */ 940 #define EF_UNSAFE 0x08000000L /* unsafe: read from untrusted source */ 941 942 #define DLVR_NOTIFY 0x01 943 #define DLVR_RETURN 0x02 944 #define DLVR_TRACE 0x10 945 #define IS_DLVR_NOTIFY(e) (((e)->e_dlvr_flag & DLVR_NOTIFY) != 0) 946 #define IS_DLVR_RETURN(e) (((e)->e_dlvr_flag & DLVR_RETURN) != 0) 947 #define IS_DLVR_TRACE(e) (((e)->e_dlvr_flag & DLVR_TRACE) != 0) 948 #define IS_DLVR_BY(e) ((e)->e_dlvr_flag != 0) 949 950 #define BODYTYPE_NONE (0) 951 #define BODYTYPE_7BIT (1) 952 #define BODYTYPE_8BITMIME (2) 953 #define BODYTYPE_ILLEGAL (-1) 954 #define BODYTYPE_VALID(b) ((b) == BODYTYPE_7BIT || (b) == BODYTYPE_8BITMIME) 955 956 extern ENVELOPE BlankEnvelope; 957 958 /* functions */ 959 extern void clearenvelope __P((ENVELOPE *, bool, SM_RPOOL_T *)); 960 extern void dropenvelope __P((ENVELOPE *, bool, bool)); 961 extern ENVELOPE *newenvelope __P((ENVELOPE *, ENVELOPE *, SM_RPOOL_T *)); 962 extern void clrsessenvelope __P((ENVELOPE *)); 963 extern void printenvflags __P((ENVELOPE *)); 964 extern void putbody __P((MCI *, ENVELOPE *, char *)); 965 extern void putheader __P((MCI *, HDR *, ENVELOPE *, int)); 966 967 /* 968 ** Message priority classes. 969 ** 970 ** The message class is read directly from the Priority: header 971 ** field in the message. 972 ** 973 ** CurEnv->e_msgpriority is the number of bytes in the message plus 974 ** the creation time (so that jobs ``tend'' to be ordered correctly), 975 ** adjusted by the message class, the number of recipients, and the 976 ** amount of time the message has been sitting around. This number 977 ** is used to order the queue. Higher values mean LOWER priority. 978 ** 979 ** Each priority class point is worth WkClassFact priority points; 980 ** each recipient is worth WkRecipFact priority points. Each time 981 ** we reprocess a message the priority is adjusted by WkTimeFact. 982 ** WkTimeFact should normally decrease the priority so that jobs 983 ** that have historically failed will be run later; thanks go to 984 ** Jay Lepreau at Utah for pointing out the error in my thinking. 985 ** 986 ** The "class" is this number, unadjusted by the age or size of 987 ** this message. Classes with negative representations will have 988 ** error messages thrown away if they are not local. 989 */ 990 991 struct priority 992 { 993 char *pri_name; /* external name of priority */ 994 int pri_val; /* internal value for same */ 995 }; 996 997 EXTERN int NumPriorities; /* pointer into Priorities */ 998 EXTERN struct priority Priorities[MAXPRIORITIES]; 999 1000 /* 1001 ** Rewrite rules. 1002 */ 1003 1004 struct rewrite 1005 { 1006 char **r_lhs; /* pattern match */ 1007 char **r_rhs; /* substitution value */ 1008 struct rewrite *r_next;/* next in chain */ 1009 int r_line; /* rule line in sendmail.cf */ 1010 }; 1011 1012 /* 1013 ** Special characters in rewriting rules. 1014 ** These are used internally only. 1015 ** The COND* rules are actually used in macros rather than in 1016 ** rewriting rules, but are given here because they 1017 ** cannot conflict. 1018 */ 1019 1020 /* left hand side items */ 1021 #define MATCHZANY ((unsigned char)0220) /* match zero or more tokens */ 1022 #define MATCHANY ((unsigned char)0221) /* match one or more tokens */ 1023 #define MATCHONE ((unsigned char)0222) /* match exactly one token */ 1024 #define MATCHCLASS ((unsigned char)0223) /* match one token in a class */ 1025 #define MATCHNCLASS ((unsigned char)0224) /* match anything not in class */ 1026 #define MATCHREPL ((unsigned char)0225) /* replacement on RHS for above */ 1027 1028 /* right hand side items */ 1029 #define CANONNET ((unsigned char)0226) /* canonical net, next token */ 1030 #define CANONHOST ((unsigned char)0227) /* canonical host, next token */ 1031 #define CANONUSER ((unsigned char)0230) /* canonical user, next N tokens */ 1032 #define CALLSUBR ((unsigned char)0231) /* call another rewriting set */ 1033 1034 /* conditionals in macros */ 1035 #define CONDIF ((unsigned char)0232) /* conditional if-then */ 1036 #define CONDELSE ((unsigned char)0233) /* conditional else */ 1037 #define CONDFI ((unsigned char)0234) /* conditional fi */ 1038 1039 /* bracket characters for host name lookup */ 1040 #define HOSTBEGIN ((unsigned char)0235) /* hostname lookup begin */ 1041 #define HOSTEND ((unsigned char)0236) /* hostname lookup end */ 1042 1043 /* bracket characters for generalized lookup */ 1044 #define LOOKUPBEGIN ((unsigned char)0205) /* generalized lookup begin */ 1045 #define LOOKUPEND ((unsigned char)0206) /* generalized lookup end */ 1046 1047 /* macro substitution character */ 1048 #define MACROEXPAND ((unsigned char)0201) /* macro expansion */ 1049 #define MACRODEXPAND ((unsigned char)0202) /* deferred macro expansion */ 1050 1051 /* to make the code clearer */ 1052 #define MATCHZERO CANONHOST 1053 1054 #define MAXMATCH 9 /* max params per rewrite */ 1055 1056 /* external <==> internal mapping table */ 1057 struct metamac 1058 { 1059 char metaname; /* external code (after $) */ 1060 unsigned char metaval; /* internal code (as above) */ 1061 }; 1062 1063 /* values for macros with external names only */ 1064 #define MID_OPMODE 0202 /* operation mode */ 1065 1066 /* functions */ 1067 #if SM_HEAP_CHECK 1068 extern void 1069 macdefine_tagged __P(( 1070 MACROS_T *_mac, 1071 ARGCLASS_T _vclass, 1072 int _id, 1073 char *_value, 1074 char *_file, 1075 int _line, 1076 int _group)); 1077 # define macdefine(mac,c,id,v) \ 1078 macdefine_tagged(mac,c,id,v,__FILE__,__LINE__,sm_heap_group()) 1079 #else /* SM_HEAP_CHECK */ 1080 extern void 1081 macdefine __P(( 1082 MACROS_T *_mac, 1083 ARGCLASS_T _vclass, 1084 int _id, 1085 char *_value)); 1086 # define macdefine_tagged(mac,c,id,v,file,line,grp) macdefine(mac,c,id,v) 1087 #endif /* SM_HEAP_CHECK */ 1088 extern void macset __P((MACROS_T *, int, char *)); 1089 #define macget(mac, i) (mac)->mac_table[i] 1090 extern void expand __P((char *, char *, size_t, ENVELOPE *)); 1091 extern int macid_parse __P((char *, char **)); 1092 #define macid(name) macid_parse(name, NULL) 1093 extern char *macname __P((int)); 1094 extern char *macvalue __P((int, ENVELOPE *)); 1095 extern int rscheck __P((char *, char *, char *, ENVELOPE *, int, int, char *, char *)); 1096 extern int rscap __P((char *, char *, char *, ENVELOPE *, char ***, char *, int)); 1097 extern void setclass __P((int, char *)); 1098 extern int strtorwset __P((char *, char **, int)); 1099 extern void translate_dollars __P((char *)); 1100 extern bool wordinclass __P((char *, int)); 1101 1102 /* 1103 ** Name canonification short circuit. 1104 ** 1105 ** If the name server for a host is down, the process of trying to 1106 ** canonify the name can hang. This is similar to (but alas, not 1107 ** identical to) looking up the name for delivery. This stab type 1108 ** caches the result of the name server lookup so we don't hang 1109 ** multiple times. 1110 */ 1111 1112 #define NAMECANON struct _namecanon 1113 1114 NAMECANON 1115 { 1116 short nc_errno; /* cached errno */ 1117 short nc_herrno; /* cached h_errno */ 1118 short nc_stat; /* cached exit status code */ 1119 short nc_flags; /* flag bits */ 1120 char *nc_cname; /* the canonical name */ 1121 time_t nc_exp; /* entry expires at */ 1122 }; 1123 1124 /* values for nc_flags */ 1125 #define NCF_VALID 0x0001 /* entry valid */ 1126 1127 /* hostsignature structure */ 1128 1129 struct hostsig_t 1130 { 1131 char *hs_sig; /* hostsignature */ 1132 time_t hs_exp; /* entry expires at */ 1133 }; 1134 1135 typedef struct hostsig_t HOSTSIG_T; 1136 1137 /* functions */ 1138 extern bool getcanonname __P((char *, int, bool, int *)); 1139 extern int getmxrr __P((char *, char **, unsigned short *, bool, int *, bool, int *)); 1140 extern char *hostsignature __P((MAILER *, char *)); 1141 extern int getfallbackmxrr __P((char *)); 1142 1143 /* 1144 ** Mapping functions 1145 ** 1146 ** These allow arbitrary mappings in the config file. The idea 1147 ** (albeit not the implementation) comes from IDA sendmail. 1148 */ 1149 1150 #define MAPCLASS struct _mapclass 1151 #define MAP struct _map 1152 #define MAXMAPACTIONS 5 /* size of map_actions array */ 1153 1154 1155 /* 1156 ** An actual map. 1157 */ 1158 1159 MAP 1160 { 1161 MAPCLASS *map_class; /* the class of this map */ 1162 MAPCLASS *map_orgclass; /* the original class of this map */ 1163 char *map_mname; /* name of this map */ 1164 long map_mflags; /* flags, see below */ 1165 char *map_file; /* the (nominal) filename */ 1166 ARBPTR_T map_db1; /* the open database ptr */ 1167 ARBPTR_T map_db2; /* an "extra" database pointer */ 1168 char *map_keycolnm; /* key column name */ 1169 char *map_valcolnm; /* value column name */ 1170 unsigned char map_keycolno; /* key column number */ 1171 unsigned char map_valcolno; /* value column number */ 1172 char map_coldelim; /* column delimiter */ 1173 char map_spacesub; /* spacesub */ 1174 char *map_app; /* to append to successful matches */ 1175 char *map_tapp; /* to append to "tempfail" matches */ 1176 char *map_domain; /* the (nominal) NIS domain */ 1177 char *map_rebuild; /* program to run to do auto-rebuild */ 1178 time_t map_mtime; /* last database modification time */ 1179 time_t map_timeout; /* timeout for map accesses */ 1180 int map_retry; /* # of retries for map accesses */ 1181 pid_t map_pid; /* PID of process which opened map */ 1182 int map_lockfd; /* auxiliary lock file descriptor */ 1183 short map_specificity; /* specificity of aliases */ 1184 MAP *map_stack[MAXMAPSTACK]; /* list for stacked maps */ 1185 short map_return[MAXMAPACTIONS]; /* return bitmaps for stacked maps */ 1186 }; 1187 1188 1189 /* bit values for map_mflags */ 1190 #define MF_VALID 0x00000001 /* this entry is valid */ 1191 #define MF_INCLNULL 0x00000002 /* include null byte in key */ 1192 #define MF_OPTIONAL 0x00000004 /* don't complain if map not found */ 1193 #define MF_NOFOLDCASE 0x00000008 /* don't fold case in keys */ 1194 #define MF_MATCHONLY 0x00000010 /* don't use the map value */ 1195 #define MF_OPEN 0x00000020 /* this entry is open */ 1196 #define MF_WRITABLE 0x00000040 /* open for writing */ 1197 #define MF_ALIAS 0x00000080 /* this is an alias file */ 1198 #define MF_TRY0NULL 0x00000100 /* try with no null byte */ 1199 #define MF_TRY1NULL 0x00000200 /* try with the null byte */ 1200 #define MF_LOCKED 0x00000400 /* this map is currently locked */ 1201 #define MF_ALIASWAIT 0x00000800 /* alias map in aliaswait state */ 1202 #define MF_IMPL_HASH 0x00001000 /* implicit: underlying hash database */ 1203 #define MF_IMPL_NDBM 0x00002000 /* implicit: underlying NDBM database */ 1204 /* 0x00004000 */ 1205 #define MF_APPEND 0x00008000 /* append new entry on rebuild */ 1206 #define MF_KEEPQUOTES 0x00010000 /* don't dequote key before lookup */ 1207 #define MF_NODEFER 0x00020000 /* don't defer if map lookup fails */ 1208 #define MF_REGEX_NOT 0x00040000 /* regular expression negation */ 1209 #define MF_DEFER 0x00080000 /* don't lookup map in defer mode */ 1210 #define MF_SINGLEMATCH 0x00100000 /* successful only if match one key */ 1211 /* 0x00200000 available for use */ 1212 #define MF_FILECLASS 0x00400000 /* this is a file class map */ 1213 #define MF_OPENBOGUS 0x00800000 /* open failed, don't call map_close */ 1214 #define MF_CLOSING 0x01000000 /* map is being closed */ 1215 1216 #define DYNOPENMAP(map) if (!bitset(MF_OPEN, (map)->map_mflags)) \ 1217 { \ 1218 if (!openmap(map)) \ 1219 return NULL; \ 1220 } 1221 1222 1223 /* indices for map_actions */ 1224 #define MA_NOTFOUND 0 /* member map returned "not found" */ 1225 #define MA_UNAVAIL 1 /* member map is not available */ 1226 #define MA_TRYAGAIN 2 /* member map returns temp failure */ 1227 1228 /* macros to handle MapTempFail */ 1229 #define BIT_IS_MTP 0x01 /* temp.failure occurred */ 1230 #define BIT_ASK_MTP 0x02 /* do we care about MapTempFail? */ 1231 #define RESET_MAPTEMPFAIL MapTempFail = 0 1232 #define INIT_MAPTEMPFAIL MapTempFail = BIT_ASK_MTP 1233 #define SET_MAPTEMPFAIL MapTempFail |= BIT_IS_MTP 1234 #define IS_MAPTEMPFAIL bitset(BIT_IS_MTP, MapTempFail) 1235 #define ASK_MAPTEMPFAIL bitset(BIT_ASK_MTP, MapTempFail) 1236 1237 /* 1238 ** The class of a map -- essentially the functions to call 1239 */ 1240 1241 MAPCLASS 1242 { 1243 char *map_cname; /* name of this map class */ 1244 char *map_ext; /* extension for database file */ 1245 short map_cflags; /* flag bits, see below */ 1246 bool (*map_parse)__P((MAP *, char *)); 1247 /* argument parsing function */ 1248 char *(*map_lookup)__P((MAP *, char *, char **, int *)); 1249 /* lookup function */ 1250 void (*map_store)__P((MAP *, char *, char *)); 1251 /* store function */ 1252 bool (*map_open)__P((MAP *, int)); 1253 /* open function */ 1254 void (*map_close)__P((MAP *)); 1255 /* close function */ 1256 }; 1257 1258 /* bit values for map_cflags */ 1259 #define MCF_ALIASOK 0x0001 /* can be used for aliases */ 1260 #define MCF_ALIASONLY 0x0002 /* usable only for aliases */ 1261 #define MCF_REBUILDABLE 0x0004 /* can rebuild alias files */ 1262 #define MCF_OPTFILE 0x0008 /* file name is optional */ 1263 #define MCF_NOTPERSIST 0x0010 /* don't keep map open all the time */ 1264 1265 /* functions */ 1266 extern void closemaps __P((bool)); 1267 extern bool impl_map_open __P((MAP *, int)); 1268 extern void initmaps __P((void)); 1269 extern MAP *makemapentry __P((char *)); 1270 extern void maplocaluser __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1271 extern char *map_rewrite __P((MAP *, const char *, size_t, char **)); 1272 #if NETINFO 1273 extern char *ni_propval __P((char *, char *, char *, char *, int)); 1274 #endif /* NETINFO */ 1275 extern bool openmap __P((MAP *)); 1276 #if USERDB 1277 extern void _udbx_close __P((void)); 1278 extern int udbexpand __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1279 extern char *udbsender __P((char *, SM_RPOOL_T *)); 1280 #endif /* USERDB */ 1281 1282 /* 1283 ** LDAP related items 1284 */ 1285 #if LDAPMAP 1286 /* struct defining LDAP Auth Methods */ 1287 struct lamvalues 1288 { 1289 char *lam_name; /* name of LDAP auth method */ 1290 int lam_code; /* numeric code */ 1291 }; 1292 1293 /* struct defining LDAP Alias Dereferencing */ 1294 struct ladvalues 1295 { 1296 char *lad_name; /* name of LDAP alias dereferencing method */ 1297 int lad_code; /* numeric code */ 1298 }; 1299 1300 /* struct defining LDAP Search Scope */ 1301 struct lssvalues 1302 { 1303 char *lss_name; /* name of LDAP search scope */ 1304 int lss_code; /* numeric code */ 1305 }; 1306 1307 /* functions */ 1308 extern bool ldapmap_parseargs __P((MAP *, char *)); 1309 extern void ldapmap_set_defaults __P((char *)); 1310 #endif /* LDAPMAP */ 1311 1312 /* 1313 ** PH related items 1314 */ 1315 1316 #if PH_MAP 1317 1318 # include <phclient.h> 1319 1320 struct ph_map_struct 1321 { 1322 char *ph_servers; /* list of ph servers */ 1323 char *ph_field_list; /* list of fields to search for match */ 1324 PH *ph; /* PH server handle */ 1325 int ph_fastclose; /* send "quit" command on close */ 1326 time_t ph_timeout; /* timeout interval */ 1327 }; 1328 typedef struct ph_map_struct PH_MAP_STRUCT; 1329 1330 #endif /* PH_MAP */ 1331 /* 1332 ** Process List (proclist) 1333 */ 1334 1335 #define NO_PID ((pid_t) 0) 1336 #ifndef PROC_LIST_SEG 1337 # define PROC_LIST_SEG 32 /* number of pids to alloc at a time */ 1338 #endif /* ! PROC_LIST_SEG */ 1339 1340 /* process types */ 1341 #define PROC_NONE 0 1342 #define PROC_DAEMON 1 1343 #define PROC_DAEMON_CHILD 2 1344 #define PROC_QUEUE 3 1345 #define PROC_QUEUE_CHILD 3 1346 #define PROC_CONTROL 4 1347 #define PROC_CONTROL_CHILD 5 1348 1349 /* functions */ 1350 extern void proc_list_add __P((pid_t, char *, int, int, int)); 1351 extern void proc_list_clear __P((void)); 1352 extern void proc_list_display __P((SM_FILE_T *, char *)); 1353 extern void proc_list_drop __P((pid_t, int, int *)); 1354 extern void proc_list_probe __P((void)); 1355 extern void proc_list_set __P((pid_t, char *)); 1356 extern void proc_list_signal __P((int, int)); 1357 1358 /* 1359 ** Symbol table definitions 1360 */ 1361 1362 struct symtab 1363 { 1364 char *s_name; /* name to be entered */ 1365 short s_symtype; /* general type (see below) */ 1366 struct symtab *s_next; /* pointer to next in chain */ 1367 union 1368 { 1369 BITMAP256 sv_class; /* bit-map of word classes */ 1370 ADDRESS *sv_addr; /* pointer to address header */ 1371 MAILER *sv_mailer; /* pointer to mailer */ 1372 char *sv_alias; /* alias */ 1373 MAPCLASS sv_mapclass; /* mapping function class */ 1374 MAP sv_map; /* mapping function */ 1375 HOSTSIG_T sv_hostsig; /* host signature */ 1376 MCI sv_mci; /* mailer connection info */ 1377 NAMECANON sv_namecanon; /* canonical name cache */ 1378 int sv_macro; /* macro name => id mapping */ 1379 int sv_ruleset; /* ruleset index */ 1380 struct hdrinfo sv_header; /* header metainfo */ 1381 char *sv_service[MAXMAPSTACK]; /* service switch */ 1382 #if LDAPMAP 1383 MAP *sv_lmap; /* Maps for LDAP connection */ 1384 #endif /* LDAPMAP */ 1385 #if MILTER 1386 struct milter *sv_milter; /* milter filter name */ 1387 #endif /* MILTER */ 1388 QUEUEGRP *sv_queue; /* pointer to queue */ 1389 } s_value; 1390 }; 1391 1392 typedef struct symtab STAB; 1393 1394 /* symbol types */ 1395 #define ST_UNDEF 0 /* undefined type */ 1396 #define ST_CLASS 1 /* class map */ 1397 #define ST_ADDRESS 2 /* an address in parsed format */ 1398 #define ST_MAILER 3 /* a mailer header */ 1399 #define ST_ALIAS 4 /* an alias */ 1400 #define ST_MAPCLASS 5 /* mapping function class */ 1401 #define ST_MAP 6 /* mapping function */ 1402 #define ST_HOSTSIG 7 /* host signature */ 1403 #define ST_NAMECANON 8 /* cached canonical name */ 1404 #define ST_MACRO 9 /* macro name to id mapping */ 1405 #define ST_RULESET 10 /* ruleset index */ 1406 #define ST_SERVICE 11 /* service switch entry */ 1407 #define ST_HEADER 12 /* special header flags */ 1408 #if LDAPMAP 1409 # define ST_LMAP 13 /* List head of maps for LDAP connection */ 1410 #endif /* LDAPMAP */ 1411 #if MILTER 1412 # define ST_MILTER 14 /* milter filter */ 1413 #endif /* MILTER */ 1414 #define ST_QUEUE 15 /* a queue entry */ 1415 1416 /* This entry must be last */ 1417 #define ST_MCI 16 /* mailer connection info (offset) */ 1418 1419 #define s_class s_value.sv_class 1420 #define s_address s_value.sv_addr 1421 #define s_mailer s_value.sv_mailer 1422 #define s_alias s_value.sv_alias 1423 #define s_mci s_value.sv_mci 1424 #define s_mapclass s_value.sv_mapclass 1425 #define s_hostsig s_value.sv_hostsig 1426 #define s_map s_value.sv_map 1427 #define s_namecanon s_value.sv_namecanon 1428 #define s_macro s_value.sv_macro 1429 #define s_ruleset s_value.sv_ruleset 1430 #define s_service s_value.sv_service 1431 #define s_header s_value.sv_header 1432 #if LDAPMAP 1433 # define s_lmap s_value.sv_lmap 1434 #endif /* LDAPMAP */ 1435 #if MILTER 1436 # define s_milter s_value.sv_milter 1437 #endif /* MILTER */ 1438 #define s_quegrp s_value.sv_queue 1439 1440 /* opcodes to stab */ 1441 #define ST_FIND 0 /* find entry */ 1442 #define ST_ENTER 1 /* enter if not there */ 1443 1444 /* functions */ 1445 extern STAB *stab __P((char *, int, int)); 1446 extern void stabapply __P((void (*)(STAB *, int), int)); 1447 1448 /* 1449 ** Operation, send, error, and MIME modes 1450 ** 1451 ** The operation mode describes the basic operation of sendmail. 1452 ** This can be set from the command line, and is "send mail" by 1453 ** default. 1454 ** 1455 ** The send mode tells how to send mail. It can be set in the 1456 ** configuration file. Its setting determines how quickly the 1457 ** mail will be delivered versus the load on your system. If the 1458 ** -v (verbose) flag is given, it will be forced to SM_DELIVER 1459 ** mode. 1460 ** 1461 ** The error mode tells how to return errors. 1462 */ 1463 1464 #define MD_DELIVER 'm' /* be a mail sender */ 1465 #define MD_SMTP 's' /* run SMTP on standard input */ 1466 #define MD_ARPAFTP 'a' /* obsolete ARPANET mode (Grey Book) */ 1467 #define MD_DAEMON 'd' /* run as a daemon */ 1468 #define MD_FGDAEMON 'D' /* run daemon in foreground */ 1469 #define MD_VERIFY 'v' /* verify: don't collect or deliver */ 1470 #define MD_TEST 't' /* test mode: resolve addrs only */ 1471 #define MD_INITALIAS 'i' /* initialize alias database */ 1472 #define MD_PRINT 'p' /* print the queue */ 1473 #define MD_PRINTNQE 'P' /* print number of entries in queue */ 1474 #define MD_FREEZE 'z' /* freeze the configuration file */ 1475 #define MD_HOSTSTAT 'h' /* print persistent host stat info */ 1476 #define MD_PURGESTAT 'H' /* purge persistent host stat info */ 1477 #define MD_QUEUERUN 'q' /* queue run */ 1478 1479 /* Note: see also include/sendmail/pathnames.h: GET_CLIENT_CF */ 1480 1481 /* values for e_sendmode -- send modes */ 1482 #define SM_DELIVER 'i' /* interactive delivery */ 1483 #define SM_FORK 'b' /* deliver in background */ 1484 #define SM_QUEUE 'q' /* queue, don't deliver */ 1485 #define SM_DEFER 'd' /* defer map lookups as well as queue */ 1486 #define SM_VERIFY 'v' /* verify only (used internally) */ 1487 1488 #define WILL_BE_QUEUED(m) ((m) == SM_QUEUE || (m) == SM_DEFER) 1489 1490 /* used only as a parameter to sendall */ 1491 #define SM_DEFAULT '\0' /* unspecified, use SendMode */ 1492 1493 /* functions */ 1494 extern void set_delivery_mode __P((int, ENVELOPE *)); 1495 1496 /* values for e_errormode -- error handling modes */ 1497 #define EM_PRINT 'p' /* print errors */ 1498 #define EM_MAIL 'm' /* mail back errors */ 1499 #define EM_WRITE 'w' /* write back errors */ 1500 #define EM_BERKNET 'e' /* special berknet processing */ 1501 #define EM_QUIET 'q' /* don't print messages (stat only) */ 1502 1503 1504 /* bit values for MimeMode */ 1505 #define MM_CVTMIME 0x0001 /* convert 8 to 7 bit MIME */ 1506 #define MM_PASS8BIT 0x0002 /* just send 8 bit data blind */ 1507 #define MM_MIME8BIT 0x0004 /* convert 8-bit data to MIME */ 1508 1509 1510 /* how to handle messages without any recipient addresses */ 1511 #define NRA_NO_ACTION 0 /* just leave it as is */ 1512 #define NRA_ADD_TO 1 /* add To: header */ 1513 #define NRA_ADD_APPARENTLY_TO 2 /* add Apparently-To: header */ 1514 #define NRA_ADD_BCC 3 /* add empty Bcc: header */ 1515 #define NRA_ADD_TO_UNDISCLOSED 4 /* add To: undisclosed:; header */ 1516 1517 1518 /* flags to putxline */ 1519 #define PXLF_NOTHINGSPECIAL 0 /* no special mapping */ 1520 #define PXLF_MAPFROM 0x0001 /* map From_ to >From_ */ 1521 #define PXLF_STRIP8BIT 0x0002 /* strip 8th bit */ 1522 #define PXLF_HEADER 0x0004 /* map newlines in headers */ 1523 #define PXLF_NOADDEOL 0x0008 /* if EOL not present, don't add one */ 1524 1525 /* 1526 ** Privacy flags 1527 ** These are bit values for the PrivacyFlags word. 1528 */ 1529 1530 #define PRIV_PUBLIC 0 /* what have I got to hide? */ 1531 #define PRIV_NEEDMAILHELO 0x00000001 /* insist on HELO for MAIL */ 1532 #define PRIV_NEEDEXPNHELO 0x00000002 /* insist on HELO for EXPN */ 1533 #define PRIV_NEEDVRFYHELO 0x00000004 /* insist on HELO for VRFY */ 1534 #define PRIV_NOEXPN 0x00000008 /* disallow EXPN command */ 1535 #define PRIV_NOVRFY 0x00000010 /* disallow VRFY command */ 1536 #define PRIV_AUTHWARNINGS 0x00000020 /* flag possible auth probs */ 1537 #define PRIV_NOVERB 0x00000040 /* disallow VERB command */ 1538 #define PRIV_RESTRICTMAILQ 0x00010000 /* restrict mailq command */ 1539 #define PRIV_RESTRICTQRUN 0x00020000 /* restrict queue run */ 1540 #define PRIV_RESTRICTEXPAND 0x00040000 /* restrict alias/forward expansion */ 1541 #define PRIV_NOETRN 0x00080000 /* disallow ETRN command */ 1542 #define PRIV_NOBODYRETN 0x00100000 /* do not return bodies on bounces */ 1543 #define PRIV_NORECEIPTS 0x00200000 /* disallow return receipts */ 1544 1545 /* don't give no info, anyway, anyhow */ 1546 #define PRIV_GOAWAY 0x0000ffff 1547 1548 /* struct defining such things */ 1549 struct prival 1550 { 1551 char *pv_name; /* name of privacy flag */ 1552 unsigned long pv_flag; /* numeric level */ 1553 }; 1554 1555 EXTERN unsigned long PrivacyFlags; /* privacy flags */ 1556 1557 1558 /* 1559 ** Flags passed to remotename, parseaddr, allocaddr, and buildaddr. 1560 */ 1561 1562 #define RF_SENDERADDR 0x001 /* this is a sender address */ 1563 #define RF_HEADERADDR 0x002 /* this is a header address */ 1564 #define RF_CANONICAL 0x004 /* strip comment information */ 1565 #define RF_ADDDOMAIN 0x008 /* OK to do domain extension */ 1566 #define RF_COPYPARSE 0x010 /* copy parsed user & host */ 1567 #define RF_COPYPADDR 0x020 /* copy print address */ 1568 #define RF_COPYALL (RF_COPYPARSE|RF_COPYPADDR) 1569 #define RF_COPYNONE 0 1570 1571 /* 1572 ** Flags passed to rscheck 1573 */ 1574 1575 #define RSF_RMCOMM 0x0001 /* strip comments */ 1576 #define RSF_UNSTRUCTURED 0x0002 /* unstructured, ignore syntax errors */ 1577 #define RSF_COUNT 0x0004 /* count rejections (statistics)? */ 1578 1579 /* 1580 ** Flags passed to mime8to7 and putheader. 1581 */ 1582 1583 #define M87F_OUTER 0 /* outer context */ 1584 #define M87F_NO8BIT 0x0001 /* can't have 8-bit in this section */ 1585 #define M87F_DIGEST 0x0002 /* processing multipart/digest */ 1586 #define M87F_NO8TO7 0x0004 /* don't do 8->7 bit conversions */ 1587 1588 /* functions */ 1589 extern void mime7to8 __P((MCI *, HDR *, ENVELOPE *)); 1590 extern int mime8to7 __P((MCI *, HDR *, ENVELOPE *, char **, int)); 1591 1592 /* 1593 ** Flags passed to returntosender. 1594 */ 1595 1596 #define RTSF_NO_BODY 0 /* send headers only */ 1597 #define RTSF_SEND_BODY 0x0001 /* include body of message in return */ 1598 #define RTSF_PM_BOUNCE 0x0002 /* this is a postmaster bounce */ 1599 1600 /* functions */ 1601 extern int returntosender __P((char *, ADDRESS *, int, ENVELOPE *)); 1602 1603 /* 1604 ** Regular UNIX sockaddrs are too small to handle ISO addresses, so 1605 ** we are forced to declare a supertype here. 1606 */ 1607 1608 #if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 1609 union bigsockaddr 1610 { 1611 struct sockaddr sa; /* general version */ 1612 # if NETUNIX 1613 struct sockaddr_un sunix; /* UNIX family */ 1614 # endif /* NETUNIX */ 1615 # if NETINET 1616 struct sockaddr_in sin; /* INET family */ 1617 # endif /* NETINET */ 1618 # if NETINET6 1619 struct sockaddr_in6 sin6; /* INET/IPv6 */ 1620 # endif /* NETINET6 */ 1621 # if NETISO 1622 struct sockaddr_iso siso; /* ISO family */ 1623 # endif /* NETISO */ 1624 # if NETNS 1625 struct sockaddr_ns sns; /* XNS family */ 1626 # endif /* NETNS */ 1627 # if NETX25 1628 struct sockaddr_x25 sx25; /* X.25 family */ 1629 # endif /* NETX25 */ 1630 }; 1631 1632 # define SOCKADDR union bigsockaddr 1633 1634 /* functions */ 1635 extern char *anynet_ntoa __P((SOCKADDR *)); 1636 # if NETINET6 1637 extern char *anynet_ntop __P((struct in6_addr *, char *, size_t)); 1638 extern int anynet_pton __P((int, const char *, void *)); 1639 # endif /* NETINET6 */ 1640 extern char *hostnamebyanyaddr __P((SOCKADDR *)); 1641 extern char *validate_connection __P((SOCKADDR *, char *, ENVELOPE *)); 1642 # if SASL >= 20000 1643 extern bool iptostring __P((SOCKADDR *, SOCKADDR_LEN_T, char *, unsigned)); 1644 # endif /* SASL >= 20000 */ 1645 1646 #endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */ 1647 1648 /* 1649 ** Mail Filters (milter) 1650 */ 1651 1652 /* 1653 ** 32-bit type used by milter 1654 ** (needed by libmilter even if MILTER isn't defined) 1655 */ 1656 1657 typedef SM_INT32 mi_int32; 1658 1659 #if MILTER 1660 # define SMFTO_WRITE 0 /* Timeout for sending information */ 1661 # define SMFTO_READ 1 /* Timeout waiting for a response */ 1662 # define SMFTO_EOM 2 /* Timeout for ACK/NAK to EOM */ 1663 # define SMFTO_CONNECT 3 /* Timeout for connect() */ 1664 1665 # define SMFTO_NUM_TO 4 /* Total number of timeouts */ 1666 1667 struct milter 1668 { 1669 char *mf_name; /* filter name */ 1670 BITMAP256 mf_flags; /* MTA flags */ 1671 mi_int32 mf_fvers; /* filter version */ 1672 mi_int32 mf_fflags; /* filter flags */ 1673 mi_int32 mf_pflags; /* protocol flags */ 1674 char *mf_conn; /* connection info */ 1675 int mf_sock; /* connected socket */ 1676 char mf_state; /* state of filter */ 1677 time_t mf_timeout[SMFTO_NUM_TO]; /* timeouts */ 1678 }; 1679 1680 /* MTA flags */ 1681 # define SMF_REJECT 'R' /* Reject connection on filter fail */ 1682 # define SMF_TEMPFAIL 'T' /* tempfail connection on failure */ 1683 1684 /* states */ 1685 # define SMFS_CLOSED 'C' /* closed for all further actions */ 1686 # define SMFS_OPEN 'O' /* connected to remote milter filter */ 1687 # define SMFS_INMSG 'M' /* currently servicing a message */ 1688 # define SMFS_DONE 'D' /* done with current message */ 1689 # define SMFS_CLOSABLE 'Q' /* done with current connection */ 1690 # define SMFS_ERROR 'E' /* error state */ 1691 # define SMFS_READY 'R' /* ready for action */ 1692 1693 EXTERN struct milter *InputFilters[MAXFILTERS]; 1694 EXTERN char *InputFilterList; 1695 EXTERN int MilterLogLevel; 1696 1697 # if _FFR_MILTER_PERDAEMON 1698 /* functions */ 1699 extern void setup_daemon_milters __P(()); 1700 # endif /* _FFR_MILTER_PERDAEMON */ 1701 #endif /* MILTER */ 1702 1703 /* 1704 ** Vendor codes 1705 ** 1706 ** Vendors can customize sendmail to add special behaviour, 1707 ** generally for back compatibility. Ideally, this should 1708 ** be set up in the .cf file using the "V" command. However, 1709 ** it's quite reasonable for some vendors to want the default 1710 ** be their old version; this can be set using 1711 ** -DVENDOR_DEFAULT=VENDOR_xxx 1712 ** in the Makefile. 1713 ** 1714 ** Vendors should apply to sendmail@sendmail.org for 1715 ** unique vendor codes. 1716 */ 1717 1718 #define VENDOR_BERKELEY 1 /* Berkeley-native configuration file */ 1719 #define VENDOR_SUN 2 /* Sun-native configuration file */ 1720 #define VENDOR_HP 3 /* Hewlett-Packard specific config syntax */ 1721 #define VENDOR_IBM 4 /* IBM specific config syntax */ 1722 #define VENDOR_SENDMAIL 5 /* Sendmail, Inc. specific config syntax */ 1723 #define VENDOR_DEC 6 /* Compaq, DEC, Digital */ 1724 1725 /* prototypes for vendor-specific hook routines */ 1726 extern void vendor_daemon_setup __P((ENVELOPE *)); 1727 extern void vendor_set_uid __P((UID_T)); 1728 1729 1730 /* 1731 ** Terminal escape codes. 1732 ** 1733 ** To make debugging output clearer. 1734 */ 1735 1736 struct termescape 1737 { 1738 char *te_rv_on; /* turn reverse-video on */ 1739 char *te_rv_off; /* turn reverse-video off */ 1740 }; 1741 1742 /* 1743 ** Additional definitions 1744 */ 1745 1746 /* 1747 ** d_flags, see daemon.c 1748 ** general rule: lower case: required, upper case: No 1749 */ 1750 1751 #define D_AUTHREQ 'a' /* authentication required */ 1752 #define D_BINDIF 'b' /* use if_addr for outgoing connection */ 1753 #define D_CANONREQ 'c' /* canonification required (cf) */ 1754 #define D_IFNHELO 'h' /* use if name for HELO */ 1755 #define D_FQMAIL 'f' /* fq sender address required (cf) */ 1756 #define D_FQRCPT 'r' /* fq recipient address required (cf) */ 1757 #if _FFR_SMTP_SSL 1758 # define D_SMTPS 's' /* SMTP over SSL (smtps) */ 1759 #endif /* _FFR_SMTP_SSL */ 1760 #define D_UNQUALOK 'u' /* unqualified address is ok (cf) */ 1761 #define D_NOAUTH 'A' /* no AUTH */ 1762 #define D_NOCANON 'C' /* no canonification (cf) */ 1763 #define D_NOETRN 'E' /* no ETRN (MSA) */ 1764 #define D_NOTLS 'S' /* don't use STARTTLS */ 1765 #define D_ETRNONLY ((char)0x01) /* allow only ETRN (disk low) */ 1766 #define D_OPTIONAL 'O' /* optional socket */ 1767 #define D_DISABLE ((char)0x02) /* optional socket disabled */ 1768 #define D_ISSET ((char)0x03) /* this client struct is set */ 1769 1770 #if STARTTLS 1771 /* 1772 ** TLS 1773 */ 1774 1775 /* what to do in the TLS initialization */ 1776 #define TLS_I_NONE 0x00000000 /* no requirements... */ 1777 #define TLS_I_CERT_EX 0x00000001 /* cert must exist */ 1778 #define TLS_I_CERT_UNR 0x00000002 /* cert must be g/o unreadable */ 1779 #define TLS_I_KEY_EX 0x00000004 /* key must exist */ 1780 #define TLS_I_KEY_UNR 0x00000008 /* key must be g/o unreadable */ 1781 #define TLS_I_CERTP_EX 0x00000010 /* CA cert path must exist */ 1782 #define TLS_I_CERTP_UNR 0x00000020 /* CA cert path must be g/o unreadable */ 1783 #define TLS_I_CERTF_EX 0x00000040 /* CA cert file must exist */ 1784 #define TLS_I_CERTF_UNR 0x00000080 /* CA cert file must be g/o unreadable */ 1785 #define TLS_I_RSA_TMP 0x00000100 /* RSA TMP must be generated */ 1786 #define TLS_I_USE_KEY 0x00000200 /* private key must usable */ 1787 #define TLS_I_USE_CERT 0x00000400 /* certificate must be usable */ 1788 #define TLS_I_VRFY_PATH 0x00000800 /* load verify path must succeed */ 1789 #define TLS_I_VRFY_LOC 0x00001000 /* load verify default must succeed */ 1790 #define TLS_I_CACHE 0x00002000 /* require cache */ 1791 #define TLS_I_TRY_DH 0x00004000 /* try DH certificate */ 1792 #define TLS_I_REQ_DH 0x00008000 /* require DH certificate */ 1793 #define TLS_I_DHPAR_EX 0x00010000 /* require DH parameters */ 1794 #define TLS_I_DHPAR_UNR 0x00020000 /* DH param. must be g/o unreadable */ 1795 #define TLS_I_DH512 0x00040000 /* generate 512bit DH param */ 1796 #define TLS_I_DH1024 0x00080000 /* generate 1024bit DH param */ 1797 #define TLS_I_DH2048 0x00100000 /* generate 2048bit DH param */ 1798 #define TLS_I_NO_VRFY 0x00200000 /* do not require authentication */ 1799 #define TLS_I_KEY_OUNR 0x00400000 /* Key must be other unreadable */ 1800 1801 /* require server cert */ 1802 #define TLS_I_SRV_CERT (TLS_I_CERT_EX | TLS_I_KEY_EX | \ 1803 TLS_I_KEY_UNR | TLS_I_KEY_OUNR | \ 1804 TLS_I_CERTP_EX | TLS_I_CERTF_EX | \ 1805 TLS_I_USE_KEY | TLS_I_USE_CERT) 1806 1807 /* server requirements */ 1808 #define TLS_I_SRV (TLS_I_SRV_CERT | TLS_I_RSA_TMP | TLS_I_VRFY_PATH | \ 1809 TLS_I_VRFY_LOC | TLS_I_TRY_DH | TLS_I_DH512) 1810 1811 /* client requirements */ 1812 #define TLS_I_CLT (TLS_I_KEY_UNR | TLS_I_KEY_OUNR) 1813 1814 #define TLS_AUTH_OK 0 1815 #define TLS_AUTH_NO 1 1816 #define TLS_AUTH_FAIL (-1) 1817 1818 /* functions */ 1819 extern bool init_tls_library __P((void)); 1820 extern bool inittls __P((SSL_CTX **, unsigned long, bool, char *, char *, char *, char *, char *)); 1821 extern bool initclttls __P((bool)); 1822 extern void setclttls __P((bool)); 1823 extern bool initsrvtls __P((bool)); 1824 extern int tls_get_info __P((SSL *, bool, char *, MACROS_T *, bool)); 1825 extern int endtls __P((SSL *, char *)); 1826 extern void tlslogerr __P((char *)); 1827 1828 1829 EXTERN char *CACertPath; /* path to CA certificates (dir. with hashes) */ 1830 EXTERN char *CACertFile; /* file with CA certificate */ 1831 EXTERN char *CltCertFile; /* file with client certificate */ 1832 EXTERN char *CltKeyFile; /* file with client private key */ 1833 # if _FFR_TLS_1 1834 EXTERN char *CipherList; /* list of ciphers */ 1835 EXTERN char *DHParams5; /* file with DH parameters (512) */ 1836 # endif /* _FFR_TLS_1 */ 1837 EXTERN char *DHParams; /* file with DH parameters */ 1838 EXTERN char *RandFile; /* source of random data */ 1839 EXTERN char *SrvCertFile; /* file with server certificate */ 1840 EXTERN char *SrvKeyFile; /* file with server private key */ 1841 EXTERN unsigned long TLS_Srv_Opts; /* TLS server options */ 1842 #endif /* STARTTLS */ 1843 1844 /* 1845 ** Queue related items 1846 */ 1847 1848 /* queue file names */ 1849 #if _FFR_QUARANTINE 1850 # define ANYQFL_LETTER '?' 1851 # define QUARQF_LETTER 'h' 1852 #else /* _FFR_QUARANTINE */ 1853 /* Before quarantining, ANYQF == NORMQF */ 1854 # define ANYQFL_LETTER 'q' 1855 #endif /* _FFR_QUARANTINE */ 1856 #define DATAFL_LETTER 'd' 1857 #define XSCRPT_LETTER 'x' 1858 #define NORMQF_LETTER 'q' 1859 #define NEWQFL_LETTER 't' 1860 1861 # define TEMPQF_LETTER 'T' 1862 # define LOSEQF_LETTER 'Q' 1863 1864 /* queue sort order */ 1865 #define QSO_BYPRIORITY 0 /* sort by message priority */ 1866 #define QSO_BYHOST 1 /* sort by first host name */ 1867 #define QSO_BYTIME 2 /* sort by submission time */ 1868 #define QSO_BYFILENAME 3 /* sort by file name only */ 1869 #define QSO_RANDOM 4 /* sort in random order */ 1870 #define QSO_BYMODTIME 5 /* sort by modification time */ 1871 #if _FFR_RHS 1872 # define QSO_BYSHUFFLE 6 /* sort by shuffled host name */ 1873 #endif /* _FFR_RHS */ 1874 1875 #if _FFR_QUEUEDELAY 1876 # define QD_LINEAR 0 /* linear (old) delay alg */ 1877 # define QD_EXP 1 /* exponential delay alg */ 1878 #endif /* _FFR_QUEUEDELAY */ 1879 1880 #define NOQGRP (-1) /* no queue group (yet) */ 1881 #define ENVQGRP (-2) /* use queue group of envelope */ 1882 #define NOAQGRP (-3) /* no queue group in addr (yet) */ 1883 #define ISVALIDQGRP(x) ((x) >= 0) /* valid queue group? */ 1884 #define NOQDIR (-1) /* no queue directory (yet) */ 1885 #define ENVQDIR (-2) /* use queue directory of envelope */ 1886 #define NOAQDIR (-3) /* no queue directory in addr (yet) */ 1887 #define ISVALIDQDIR(x) ((x) >= 0) /* valid queue directory? */ 1888 #define RS_QUEUEGROUP "queuegroup" /* ruleset for queue group selection */ 1889 1890 #define NOW ((time_t) (-1)) /* queue return: now */ 1891 1892 /* SuperSafe values */ 1893 #define SAFE_NO 0 /* no fsync(): don't use... */ 1894 #define SAFE_INTERACTIVE 1 /* limit fsync() in -odi */ 1895 #define SAFE_REALLY 2 /* always fsync() */ 1896 1897 #if _FFR_QUARANTINE 1898 /* QueueMode bits */ 1899 # define QM_NORMAL ' ' 1900 # define QM_QUARANTINE 'Q' 1901 # define QM_LOST 'L' 1902 #endif /* _FFR_QUARANTINE */ 1903 1904 /* Queue Run Limitations */ 1905 struct queue_char 1906 { 1907 char *queue_match; /* string to match */ 1908 bool queue_negate; /* or not match, if set */ 1909 struct queue_char *queue_next; 1910 }; 1911 1912 /* run_work_group() flags */ 1913 #define RWG_NONE 0x0000 1914 #define RWG_FORK 0x0001 1915 #define RWG_VERBOSE 0x0002 1916 #define RWG_PERSISTENT 0x0004 1917 #define RWG_FORCE 0x0008 1918 #define RWG_RUNALL 0x0010 1919 1920 typedef struct queue_char QUEUE_CHAR; 1921 1922 EXTERN int volatile CurRunners; /* current number of runner children */ 1923 EXTERN int MaxQueueRun; /* maximum number of jobs in one queue run */ 1924 EXTERN int MaxQueueChildren; /* max # of forked queue children */ 1925 EXTERN int MaxRunnersPerQueue; /* max # proc's active in queue group */ 1926 EXTERN int NiceQueueRun; /* nice queue runs to this value */ 1927 EXTERN int NumQueue; /* number of queue groups */ 1928 EXTERN int QueueFileMode; /* mode on files in mail queue */ 1929 #if _FFR_QUARANTINE 1930 EXTERN int QueueMode; /* which queue items to act upon */ 1931 #endif /* _FFR_QUARANTINE */ 1932 EXTERN int QueueSortOrder; /* queue sorting order algorithm */ 1933 EXTERN time_t MinQueueAge; /* min delivery interval */ 1934 EXTERN time_t QueueIntvl; /* intervals between running the queue */ 1935 EXTERN char *QueueDir; /* location of queue directory */ 1936 #if _FFR_QUEUEDELAY 1937 EXTERN int QueueAlg; /* algorithm for queue delays */ 1938 EXTERN time_t QueueInitDelay; /* initial queue delay */ 1939 EXTERN time_t QueueMaxDelay; /* maximum queue delay */ 1940 #endif /* _FFR_QUEUEDELAY */ 1941 EXTERN QUEUE_CHAR *QueueLimitId; /* limit queue run to id */ 1942 #if _FFR_QUARANTINE 1943 EXTERN QUEUE_CHAR *QueueLimitQuarantine; /* limit queue run to quarantine reason */ 1944 #endif /* _FFR_QUARANTINE */ 1945 EXTERN QUEUE_CHAR *QueueLimitRecipient; /* limit queue run to rcpt */ 1946 EXTERN QUEUE_CHAR *QueueLimitSender; /* limit queue run to sender */ 1947 EXTERN QUEUEGRP *Queue[MAXQUEUEGROUPS + 1]; /* queue groups */ 1948 1949 /* functions */ 1950 extern void assign_queueid __P((ENVELOPE *)); 1951 extern ADDRESS *copyqueue __P((ADDRESS *, SM_RPOOL_T *)); 1952 extern void cleanup_queues __P((void)); 1953 extern bool doqueuerun __P((void)); 1954 extern void initsys __P((ENVELOPE *)); 1955 extern void loseqfile __P((ENVELOPE *, char *)); 1956 extern int name2qid __P((char *)); 1957 extern char *qid_printname __P((ENVELOPE *)); 1958 extern char *qid_printqueue __P((int, int)); 1959 #if _FFR_QUARANTINE 1960 extern void quarantine_queue __P((char *, int)); 1961 #endif /* _FFR_QUARANTINE */ 1962 extern char *queuename __P((ENVELOPE *, int)); 1963 extern void queueup __P((ENVELOPE *, bool, bool)); 1964 extern bool runqueue __P((bool, bool, bool, bool)); 1965 extern int run_work_group __P((int, int)); 1966 extern void set_def_queueval __P((QUEUEGRP *, bool)); 1967 extern void setup_queues __P((bool)); 1968 extern bool setnewqueue __P((ENVELOPE *)); 1969 extern bool shouldqueue __P((long, time_t)); 1970 extern void sync_queue_time __P((void)); 1971 extern int print_single_queue __P((int, int)); 1972 #if REQUIRES_DIR_FSYNC 1973 # define SYNC_DIR(path, panic) sync_dir(path, panic) 1974 extern void sync_dir __P((char *, bool)); 1975 #else /* REQUIRES_DIR_FSYNC */ 1976 # define SYNC_DIR(path, panic) ((void) 0) 1977 #endif /* REQUIRES_DIR_FSYNC */ 1978 1979 /* 1980 ** Timeouts 1981 ** 1982 ** Indicated values are the MINIMUM per RFC 1123 section 5.3.2. 1983 */ 1984 1985 EXTERN struct 1986 { 1987 /* RFC 1123-specified timeouts [minimum value] */ 1988 time_t to_initial; /* initial greeting timeout [5m] */ 1989 time_t to_mail; /* MAIL command [5m] */ 1990 time_t to_rcpt; /* RCPT command [5m] */ 1991 time_t to_datainit; /* DATA initiation [2m] */ 1992 time_t to_datablock; /* DATA block [3m] */ 1993 time_t to_datafinal; /* DATA completion [10m] */ 1994 time_t to_nextcommand; /* next command [5m] */ 1995 /* following timeouts are not mentioned in RFC 1123 */ 1996 time_t to_iconnect; /* initial connection timeout (first try) */ 1997 time_t to_connect; /* initial connection timeout (later tries) */ 1998 time_t to_aconnect; /* all connections timeout (MX and A records) */ 1999 time_t to_rset; /* RSET command */ 2000 time_t to_helo; /* HELO command */ 2001 time_t to_quit; /* QUIT command */ 2002 time_t to_miscshort; /* misc short commands (NOOP, VERB, etc) */ 2003 time_t to_ident; /* IDENT protocol requests */ 2004 time_t to_fileopen; /* opening :include: and .forward files */ 2005 time_t to_control; /* process a control socket command */ 2006 time_t to_lhlo; /* LMTP: LHLO command */ 2007 #if SASL 2008 time_t to_auth; /* AUTH dialogue [10m] */ 2009 #endif /* SASL */ 2010 #if STARTTLS 2011 time_t to_starttls; /* STARTTLS dialogue [10m] */ 2012 #endif /* STARTTLS */ 2013 /* following are per message */ 2014 time_t to_q_return[MAXTOCLASS]; /* queue return timeouts */ 2015 time_t to_q_warning[MAXTOCLASS]; /* queue warning timeouts */ 2016 time_t res_retrans[MAXRESTOTYPES]; /* resolver retransmit */ 2017 int res_retry[MAXRESTOTYPES]; /* resolver retry */ 2018 } TimeOuts; 2019 2020 /* timeout classes for return and warning timeouts */ 2021 #define TOC_NORMAL 0 /* normal delivery */ 2022 #define TOC_URGENT 1 /* urgent delivery */ 2023 #define TOC_NONURGENT 2 /* non-urgent delivery */ 2024 2025 /* resolver timeout specifiers */ 2026 #define RES_TO_FIRST 0 /* first attempt */ 2027 #define RES_TO_NORMAL 1 /* subsequent attempts */ 2028 #define RES_TO_DEFAULT 2 /* default value */ 2029 2030 /* functions */ 2031 extern void inittimeouts __P((char *, bool)); 2032 2033 /* 2034 ** Interface probing 2035 */ 2036 2037 #define DPI_PROBENONE 0 /* Don't probe any interfaces */ 2038 #define DPI_PROBEALL 1 /* Probe all interfaces */ 2039 #define DPI_SKIPLOOPBACK 2 /* Don't probe loopback interfaces */ 2040 2041 /* 2042 ** Trace information 2043 */ 2044 2045 /* macros for debugging flags */ 2046 #define tTd(flag, level) (tTdvect[flag] >= (unsigned char)level) 2047 #define tTdlevel(flag) (tTdvect[flag]) 2048 2049 /* variables */ 2050 extern unsigned char tTdvect[100]; /* trace vector */ 2051 2052 /* 2053 ** Miscellaneous information. 2054 */ 2055 2056 /* 2057 ** The "no queue id" queue id for sm_syslog 2058 */ 2059 2060 #define NOQID "*~*" 2061 2062 /* use id or NOQID (to avoid NOQUEUE in logfile) */ 2063 #define E_ID(id) ((id) == NULL ? NOQID : (id)) 2064 2065 #define CURHOSTNAME (CurHostName == NULL ? "local" : CurHostName) 2066 2067 /* 2068 ** Some in-line functions 2069 */ 2070 2071 /* set exit status */ 2072 #define setstat(s) { \ 2073 if (ExitStat == EX_OK || ExitStat == EX_TEMPFAIL) \ 2074 ExitStat = s; \ 2075 } 2076 2077 /* make a copy of a string */ 2078 #define newstr(s) strcpy(xalloc(strlen(s) + 1), s) 2079 2080 #define STRUCTCOPY(s, d) d = s 2081 2082 /* free a pointer if it isn't NULL and set it to NULL */ 2083 #define SM_FREE_CLR(p) \ 2084 if ((p) != NULL) \ 2085 { \ 2086 sm_free(p); \ 2087 (p) = NULL; \ 2088 } \ 2089 else 2090 2091 /* 2092 ** Update a permanent string variable with a new value. 2093 ** The old value is freed, the new value is strdup'ed. 2094 ** 2095 ** We use sm_pstrdup_x to duplicate the string because it raises 2096 ** an exception on error, and because it allocates "permanent storage" 2097 ** which is not expected to be freed before process exit. 2098 ** The latter is important for memory leak analysis. 2099 ** 2100 ** If an exception occurs while strdup'ing the new value, 2101 ** then the variable remains set to the old value. 2102 ** That's why the strdup must occur before we free the old value. 2103 ** 2104 ** The macro uses a do loop so that this idiom will work: 2105 ** if (...) 2106 ** PSTRSET(var, val1); 2107 ** else 2108 ** PSTRSET(var, val2); 2109 */ 2110 #define PSTRSET(var, val) \ 2111 do \ 2112 { \ 2113 char *_newval = sm_pstrdup_x(val); \ 2114 if (var != NULL) \ 2115 sm_free(var); \ 2116 var = _newval; \ 2117 } while (0) 2118 2119 /* 2120 ** Global variables. 2121 */ 2122 2123 EXTERN bool AllowBogusHELO; /* allow syntax errors on HELO command */ 2124 EXTERN bool CheckAliases; /* parse addresses during newaliases */ 2125 EXTERN bool ColonOkInAddr; /* single colon legal in address */ 2126 #if !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) 2127 EXTERN bool ConfigFileRead; /* configuration file has been read */ 2128 #endif /* !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) */ 2129 EXTERN bool volatile DataProgress; /* have we sent anything since last check */ 2130 EXTERN bool DisConnected; /* running with OutChannel redirect to transcript file */ 2131 EXTERN bool DontExpandCnames; /* do not $[...$] expand CNAMEs */ 2132 EXTERN bool DontInitGroups; /* avoid initgroups() because of NIS cost */ 2133 EXTERN bool DontLockReadFiles; /* don't read lock support files */ 2134 EXTERN bool DontPruneRoutes; /* don't prune source routes */ 2135 EXTERN bool ForkQueueRuns; /* fork for each job when running the queue */ 2136 EXTERN bool FromFlag; /* if set, "From" person is explicit */ 2137 EXTERN bool GrabTo; /* if set, get recipients from msg */ 2138 EXTERN bool HasEightBits; /* has at least one eight bit input byte */ 2139 EXTERN bool HasWildcardMX; /* don't use MX records when canonifying */ 2140 EXTERN bool HoldErrs; /* only output errors to transcript */ 2141 EXTERN bool IgnoreHostStatus; /* ignore long term host status files */ 2142 EXTERN bool IgnrDot; /* don't let dot end messages */ 2143 EXTERN bool LogUsrErrs; /* syslog user errors (e.g., SMTP RCPT cmd) */ 2144 EXTERN bool MatchGecos; /* look for user names in gecos field */ 2145 EXTERN bool MeToo; /* send to the sender also */ 2146 EXTERN bool NoAlias; /* suppress aliasing */ 2147 EXTERN bool NoConnect; /* don't connect to non-local mailers */ 2148 EXTERN bool OnlyOneError; /* .... or only want to give one SMTP reply */ 2149 EXTERN bool QuickAbort; /* .... but only if we want a quick abort */ 2150 #if _FFR_REQ_DIR_FSYNC_OPT 2151 EXTERN bool RequiresDirfsync; /* requires fsync() for directory */ 2152 #endif /* _FFR_REQ_DIR_FSYNC_OPT */ 2153 EXTERN bool ResNoAliases; /* don't use $HOSTALIASES */ 2154 EXTERN bool volatile RestartWorkGroup; /* daemon needs to restart some work groups */ 2155 EXTERN bool RrtImpliesDsn; /* turn Return-Receipt-To: into DSN */ 2156 EXTERN bool SaveFrom; /* save leading "From" lines */ 2157 EXTERN bool SendMIMEErrors; /* send error messages in MIME format */ 2158 EXTERN bool SevenBitInput; /* force 7-bit data on input */ 2159 EXTERN bool SingleLineFromHeader; /* force From: header to be one line */ 2160 EXTERN bool SingleThreadDelivery; /* single thread hosts on delivery */ 2161 #if _FFR_SOFT_BOUNCE 2162 EXTERN bool SoftBounce; /* replace 5xy by 4xy (for testing) */ 2163 #endif /* _FFR_SOFT_BOUNCE */ 2164 EXTERN bool volatile StopRequest; /* stop sending output */ 2165 EXTERN bool SuprErrs; /* set if we are suppressing errors */ 2166 EXTERN bool TryNullMXList; /* if we are the best MX, try host directly */ 2167 EXTERN bool UseMSP; /* mail submission: group writable queue ok? */ 2168 EXTERN bool WorkAroundBrokenAAAA; /* some nameservers return SERVFAIL on AAAA queries */ 2169 EXTERN bool UseErrorsTo; /* use Errors-To: header (back compat) */ 2170 EXTERN bool UseNameServer; /* using DNS -- interpret h_errno & MX RRs */ 2171 EXTERN char InetMode; /* default network for daemon mode */ 2172 EXTERN char OpMode; /* operation mode, see below */ 2173 EXTERN char SpaceSub; /* substitution for <lwsp> */ 2174 EXTERN int BadRcptThrottle; /* Throttle rejected RCPTs per SMTP message */ 2175 EXTERN int CheckpointInterval; /* queue file checkpoint interval */ 2176 EXTERN int ConfigLevel; /* config file level */ 2177 EXTERN int ConnRateThrottle; /* throttle for SMTP connection rate */ 2178 EXTERN int volatile CurChildren; /* current number of daemonic children */ 2179 EXTERN int CurrentLA; /* current load average */ 2180 EXTERN int DefaultNotify; /* default DSN notification flags */ 2181 EXTERN int DelayLA; /* load average to delay connections */ 2182 EXTERN int DontProbeInterfaces; /* don't probe interfaces for names */ 2183 EXTERN int Errors; /* set if errors (local to single pass) */ 2184 EXTERN int ExitStat; /* exit status code */ 2185 EXTERN int FastSplit; /* fast initial splitting of envelopes */ 2186 EXTERN int FileMode; /* mode on files */ 2187 EXTERN int LineNumber; /* line number in current input */ 2188 EXTERN int LogLevel; /* level of logging to perform */ 2189 EXTERN int MaxAliasRecursion; /* maximum depth of alias recursion */ 2190 EXTERN int MaxChildren; /* maximum number of daemonic children */ 2191 EXTERN int MaxForwardEntries; /* maximum number of forward entries */ 2192 EXTERN int MaxHeadersLength; /* max length of headers */ 2193 EXTERN int MaxHopCount; /* max # of hops until bounce */ 2194 EXTERN int MaxMacroRecursion; /* maximum depth of macro recursion */ 2195 EXTERN int MaxMimeFieldLength; /* maximum MIME field length */ 2196 EXTERN int MaxMimeHeaderLength; /* maximum MIME header length */ 2197 2198 EXTERN int MaxRcptPerMsg; /* max recipients per SMTP message */ 2199 EXTERN int MaxRuleRecursion; /* maximum depth of ruleset recursion */ 2200 EXTERN int MimeMode; /* MIME processing mode */ 2201 EXTERN int NoRecipientAction; 2202 2203 #if SM_CONF_SHM 2204 EXTERN int Numfilesys; /* number of queue file systems */ 2205 EXTERN int *PNumFileSys; 2206 # define NumFileSys (*PNumFileSys) 2207 # else /* SM_CONF_SHM */ 2208 EXTERN int NumFileSys; /* number of queue file systems */ 2209 # endif /* SM_CONF_SHM */ 2210 2211 EXTERN int QueueLA; /* load average starting forced queueing */ 2212 EXTERN int RefuseLA; /* load average refusing connections */ 2213 #if _FFR_REJECT_LOG 2214 EXTERN time_t RejectLogInterval; /* time btwn log msgs while refusing */ 2215 #endif /* _FFR_REJECT_LOG */ 2216 EXTERN int SuperSafe; /* be extra careful, even if expensive */ 2217 EXTERN int VendorCode; /* vendor-specific operation enhancements */ 2218 EXTERN int Verbose; /* set if blow-by-blow desired */ 2219 EXTERN gid_t DefGid; /* default gid to run as */ 2220 EXTERN gid_t RealGid; /* real gid of caller */ 2221 EXTERN gid_t RunAsGid; /* GID to become for bulk of run */ 2222 EXTERN gid_t EffGid; /* effective gid */ 2223 #if SM_CONF_SHM 2224 EXTERN key_t ShmKey; /* shared memory key */ 2225 # if _FFR_SELECT_SHM 2226 EXTERN char *ShmKeyFile; /* shared memory key file */ 2227 # endif /* _FFR_SELECT_SHM */ 2228 #endif /* SM_CONF_SHM */ 2229 EXTERN pid_t CurrentPid; /* current process id */ 2230 EXTERN pid_t DaemonPid; /* process id of daemon */ 2231 EXTERN uid_t DefUid; /* default uid to run as */ 2232 EXTERN uid_t RealUid; /* real uid of caller */ 2233 EXTERN uid_t RunAsUid; /* UID to become for bulk of run */ 2234 EXTERN uid_t TrustedUid; /* uid of trusted user for files and startup */ 2235 EXTERN size_t DataFileBufferSize; /* size of buf for in-core data file */ 2236 EXTERN time_t DeliverByMin; /* deliver by minimum time */ 2237 EXTERN time_t DialDelay; /* delay between dial-on-demand tries */ 2238 EXTERN time_t SafeAlias; /* interval to wait until @:@ in alias file */ 2239 EXTERN time_t ServiceCacheMaxAge; /* refresh interval for cache */ 2240 EXTERN size_t XscriptFileBufferSize; /* size of buf for in-core transcript file */ 2241 EXTERN MODE_T OldUmask; /* umask when sendmail starts up */ 2242 EXTERN long MaxMessageSize; /* advertised max size we will accept */ 2243 EXTERN long MinBlocksFree; /* min # of blocks free on queue fs */ 2244 EXTERN long QueueFactor; /* slope of queue function */ 2245 EXTERN long WkClassFact; /* multiplier for message class -> priority */ 2246 EXTERN long WkRecipFact; /* multiplier for # of recipients -> priority */ 2247 EXTERN long WkTimeFact; /* priority offset each time this job is run */ 2248 EXTERN char *ControlSocketName; /* control socket filename [control.c] */ 2249 EXTERN char *CurHostName; /* current host we are dealing with */ 2250 EXTERN char *DeadLetterDrop; /* path to dead letter office */ 2251 EXTERN char *DefUser; /* default user to run as (from DefUid) */ 2252 EXTERN char *DefaultCharSet; /* default character set for MIME */ 2253 EXTERN char *DoubleBounceAddr; /* where to send double bounces */ 2254 EXTERN char *ErrMsgFile; /* file to prepend to all error messages */ 2255 EXTERN char *FallBackMX; /* fall back MX host */ 2256 EXTERN char *FileName; /* name to print on error messages */ 2257 EXTERN char *ForwardPath; /* path to search for .forward files */ 2258 EXTERN char *HelpFile; /* location of SMTP help file */ 2259 EXTERN char *HostStatDir; /* location of host status information */ 2260 EXTERN char *HostsFile; /* path to /etc/hosts file */ 2261 extern char *Mbdb; /* mailbox database type */ 2262 EXTERN char *MustQuoteChars; /* quote these characters in phrases */ 2263 EXTERN char *MyHostName; /* name of this host for SMTP messages */ 2264 EXTERN char *OperatorChars; /* operators (old $o macro) */ 2265 EXTERN char *PidFile; /* location of proc id file [conf.c] */ 2266 EXTERN char *PostMasterCopy; /* address to get errs cc's */ 2267 EXTERN char *ProcTitlePrefix; /* process title prefix */ 2268 EXTERN char *RealHostName; /* name of host we are talking to */ 2269 EXTERN char *RealUserName; /* real user name of caller */ 2270 EXTERN char *volatile RestartRequest;/* a sendmail restart has been requested */ 2271 EXTERN char *RunAsUserName; /* user to become for bulk of run */ 2272 EXTERN char *SafeFileEnv; /* chroot location for file delivery */ 2273 EXTERN char *ServiceSwitchFile; /* backup service switch */ 2274 EXTERN char *volatile ShutdownRequest;/* a sendmail shutdown has been requested */ 2275 EXTERN char *SmtpGreeting; /* SMTP greeting message (old $e macro) */ 2276 EXTERN char *SmtpPhase; /* current phase in SMTP processing */ 2277 EXTERN char SmtpError[MAXLINE]; /* save failure error messages */ 2278 EXTERN char *StatFile; /* location of statistics summary */ 2279 EXTERN char *TimeZoneSpec; /* override time zone specification */ 2280 EXTERN char *UdbSpec; /* user database source spec */ 2281 EXTERN char *UnixFromLine; /* UNIX From_ line (old $l macro) */ 2282 EXTERN char **ExternalEnviron; /* saved user (input) environment */ 2283 EXTERN char **SaveArgv; /* argument vector for re-execing */ 2284 EXTERN BITMAP256 DontBlameSendmail; /* DontBlameSendmail bits */ 2285 EXTERN SM_FILE_T *InChannel; /* input connection */ 2286 EXTERN SM_FILE_T *OutChannel; /* output connection */ 2287 EXTERN SM_FILE_T *TrafficLogFile; /* file in which to log all traffic */ 2288 #if HESIOD 2289 EXTERN void *HesiodContext; 2290 #endif /* HESIOD */ 2291 EXTERN ENVELOPE *CurEnv; /* envelope currently being processed */ 2292 EXTERN char *RuleSetNames[MAXRWSETS]; /* ruleset number to name */ 2293 EXTERN char *UserEnviron[MAXUSERENVIRON + 1]; 2294 EXTERN struct rewrite *RewriteRules[MAXRWSETS]; 2295 EXTERN struct termescape TermEscape; /* terminal escape codes */ 2296 EXTERN SOCKADDR ConnectOnlyTo; /* override connection address (for testing) */ 2297 EXTERN SOCKADDR RealHostAddr; /* address of host we are talking to */ 2298 extern const SM_EXC_TYPE_T EtypeQuickAbort; /* type of a QuickAbort exception */ 2299 2300 2301 2302 /* 2303 ** Declarations of useful functions 2304 */ 2305 2306 /* Transcript file */ 2307 extern void closexscript __P((ENVELOPE *)); 2308 extern void openxscript __P((ENVELOPE *)); 2309 2310 /* error related */ 2311 extern void buffer_errors __P((void)); 2312 extern void flush_errors __P((bool)); 2313 extern void PRINTFLIKE(1, 2) message __P((const char *, ...)); 2314 extern void PRINTFLIKE(1, 2) nmessage __P((const char *, ...)); 2315 extern void PRINTFLIKE(1, 2) syserr __P((const char *, ...)); 2316 extern void PRINTFLIKE(2, 3) usrerrenh __P((char *, const char *, ...)); 2317 extern void PRINTFLIKE(1, 2) usrerr __P((const char *, ...)); 2318 extern int isenhsc __P((const char *, int)); 2319 extern int extenhsc __P((const char *, int, char *)); 2320 2321 /* alias file */ 2322 extern void alias __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 2323 extern bool aliaswait __P((MAP *, char *, bool)); 2324 extern void forward __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 2325 extern void readaliases __P((MAP *, SM_FILE_T *, bool, bool)); 2326 extern bool rebuildaliases __P((MAP *, bool)); 2327 extern void setalias __P((char *)); 2328 2329 /* logging */ 2330 extern void logdelivery __P((MAILER *, MCI *, char *, const char *, ADDRESS *, time_t, ENVELOPE *)); 2331 extern void logsender __P((ENVELOPE *, char *)); 2332 extern void PRINTFLIKE(3, 4) sm_syslog __P((int, const char *, const char *, ...)); 2333 2334 /* SMTP */ 2335 extern void giveresponse __P((int, char *, MAILER *, MCI *, ADDRESS *, time_t, ENVELOPE *, ADDRESS *)); 2336 extern int reply __P((MAILER *, MCI *, ENVELOPE *, time_t, void (*)(), char **)); 2337 extern void smtp __P((char *volatile, BITMAP256, ENVELOPE *volatile)); 2338 #if SASL 2339 extern int smtpauth __P((MAILER *, MCI *, ENVELOPE *)); 2340 #endif /* SASL */ 2341 extern int smtpdata __P((MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t)); 2342 extern int smtpgetstat __P((MAILER *, MCI *, ENVELOPE *)); 2343 extern int smtpmailfrom __P((MAILER *, MCI *, ENVELOPE *)); 2344 extern void smtpmessage __P((char *, MAILER *, MCI *, ...)); 2345 extern void smtpinit __P((MAILER *, MCI *, ENVELOPE *, bool)); 2346 extern char *smtptodsn __P((int)); 2347 extern int smtpprobe __P((MCI *)); 2348 extern void smtpquit __P((MAILER *, MCI *, ENVELOPE *)); 2349 extern int smtprcpt __P((ADDRESS *, MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t)); 2350 extern void smtprset __P((MAILER *, MCI *, ENVELOPE *)); 2351 2352 #define ISSMTPCODE(c) (isascii(c[0]) && isdigit(c[0]) && \ 2353 isascii(c[1]) && isdigit(c[1]) && \ 2354 isascii(c[2]) && isdigit(c[2])) 2355 #define ISSMTPREPLY(c) (ISSMTPCODE(c) && \ 2356 (c[3] == ' ' || c[3] == '-' || c[3] == '\0')) 2357 2358 /* delivery */ 2359 extern pid_t dowork __P((int, int, char *, bool, bool, ENVELOPE *)); 2360 extern pid_t doworklist __P((ENVELOPE *, bool, bool)); 2361 extern int endmailer __P((MCI *, ENVELOPE *, char **)); 2362 extern int mailfile __P((char *volatile, MAILER *volatile, ADDRESS *, volatile long, ENVELOPE *)); 2363 extern void sendall __P((ENVELOPE *, int)); 2364 2365 /* stats */ 2366 #define STATS_NORMAL 'n' 2367 #if _FFR_QUARANTINE 2368 # define STATS_QUARANTINE 'q' 2369 #endif /* _FFR_QUARANTINE */ 2370 #define STATS_REJECT 'r' 2371 #define STATS_CONNECT 'c' 2372 2373 extern void markstats __P((ENVELOPE *, ADDRESS *, int)); 2374 extern void clearstats __P((void)); 2375 extern void poststats __P((char *)); 2376 2377 /* control socket */ 2378 extern void closecontrolsocket __P((bool)); 2379 extern void clrcontrol __P((void)); 2380 extern void control_command __P((int, ENVELOPE *)); 2381 extern int opencontrolsocket __P((void)); 2382 2383 #if MILTER 2384 /* milter functions */ 2385 extern void milter_config __P((char *, struct milter **, int)); 2386 extern void milter_setup __P((char *)); 2387 extern void milter_set_option __P((char *, char *, bool)); 2388 extern bool milter_can_delrcpts __P((void)); 2389 extern bool milter_init __P((ENVELOPE *, char *)); 2390 extern void milter_quit __P((ENVELOPE *)); 2391 extern void milter_abort __P((ENVELOPE *)); 2392 extern char *milter_connect __P((char *, SOCKADDR, ENVELOPE *, char *)); 2393 extern char *milter_helo __P((char *, ENVELOPE *, char *)); 2394 extern char *milter_envfrom __P((char **, ENVELOPE *, char *)); 2395 extern char *milter_envrcpt __P((char **, ENVELOPE *, char *)); 2396 extern char *milter_data __P((ENVELOPE *, char *)); 2397 #endif /* MILTER */ 2398 2399 extern char *addquotes __P((char *, SM_RPOOL_T *)); 2400 extern char *arpadate __P((char *)); 2401 extern bool atobool __P((char *)); 2402 extern int atooct __P((char *)); 2403 extern void auth_warning __P((ENVELOPE *, const char *, ...)); 2404 extern int blocksignal __P((int)); 2405 extern bool bitintersect __P((BITMAP256, BITMAP256)); 2406 extern bool bitzerop __P((BITMAP256)); 2407 extern int check_bodytype __P((char *)); 2408 extern void buildfname __P((char *, char *, char *, int)); 2409 extern bool chkclientmodifiers __P((int)); 2410 extern bool chkdaemonmodifiers __P((int)); 2411 extern int checkcompat __P((ADDRESS *, ENVELOPE *)); 2412 #ifdef XDEBUG 2413 extern void checkfd012 __P((char *)); 2414 extern void checkfdopen __P((int, char *)); 2415 #endif /* XDEBUG */ 2416 extern void checkfds __P((char *)); 2417 extern bool chownsafe __P((int, bool)); 2418 extern void cleanstrcpy __P((char *, char *, int)); 2419 #if SM_CONF_SHM 2420 extern void cleanup_shm __P((bool)); 2421 #endif /* SM_CONF_SHM */ 2422 extern void clrdaemon __P((void)); 2423 extern void collect __P((SM_FILE_T *, bool, HDR **, ENVELOPE *)); 2424 extern time_t convtime __P((char *, int)); 2425 extern char **copyplist __P((char **, bool, SM_RPOOL_T *)); 2426 extern void copy_class __P((int, int)); 2427 extern time_t curtime __P((void)); 2428 extern char *defcharset __P((ENVELOPE *)); 2429 extern char *denlstring __P((char *, bool, bool)); 2430 extern void disconnect __P((int, ENVELOPE *)); 2431 #if _FFR_CONTROL_MSTAT 2432 extern void disk_status __P((SM_FILE_T *, char *)); 2433 #endif /* _FFR_CONTROL_MSTAT */ 2434 extern bool dns_getcanonname __P((char *, int, bool, int *, int *)); 2435 extern pid_t dofork __P((void)); 2436 extern int drop_privileges __P((bool)); 2437 extern int dsntoexitstat __P((char *)); 2438 extern void dumpfd __P((int, bool, bool)); 2439 extern void dumpstate __P((char *)); 2440 extern bool enoughdiskspace __P((long, ENVELOPE *)); 2441 extern char *exitstat __P((char *)); 2442 extern void fatal_error __P((SM_EXC_T *)); 2443 extern char *fgetfolded __P((char *, int, SM_FILE_T *)); 2444 extern void fill_fd __P((int, char *)); 2445 extern char *find_character __P((char *, int)); 2446 extern int finduser __P((char *, bool *, SM_MBDB_T *)); 2447 extern void finis __P((bool, bool, volatile int)); 2448 extern void fixcrlf __P((char *, bool)); 2449 extern long freediskspace __P((char *, long *)); 2450 #if NETINET6 && NEEDSGETIPNODE 2451 extern void freehostent __P((struct hostent *)); 2452 #endif /* NETINET6 && NEEDSGETIPNODE */ 2453 extern char *get_column __P((char *, int, int, char *, int)); 2454 extern char *getauthinfo __P((int, bool *)); 2455 extern int getdtsize __P((void)); 2456 extern int getla __P((void)); 2457 extern char *getmodifiers __P((char *, BITMAP256)); 2458 extern BITMAP256 *getrequests __P((ENVELOPE *)); 2459 extern char *getvendor __P((int)); 2460 extern void help __P((char *, ENVELOPE *)); 2461 extern void init_md __P((int, char **)); 2462 extern void initdaemon __P((void)); 2463 extern void inithostmaps __P((void)); 2464 extern void initmacros __P((ENVELOPE *)); 2465 extern void initsetproctitle __P((int, char **, char **)); 2466 extern void init_vendor_macros __P((ENVELOPE *)); 2467 extern SIGFUNC_DECL intsig __P((int)); 2468 extern bool isloopback __P((SOCKADDR sa)); 2469 extern void load_if_names __P((void)); 2470 extern bool lockfile __P((int, char *, char *, int)); 2471 extern void log_sendmail_pid __P((ENVELOPE *)); 2472 extern void logundelrcpts __P((ENVELOPE *, char *, int, bool)); 2473 extern char lower __P((int)); 2474 extern void makelower __P((char *)); 2475 extern int makeconnection_ds __P((char *, MCI *)); 2476 extern int makeconnection __P((char *, volatile unsigned int, MCI *, ENVELOPE *, time_t)); 2477 extern void makeworkgroups __P((void)); 2478 extern void mark_work_group_restart __P((int, int)); 2479 extern char * munchstring __P((char *, char **, int)); 2480 extern struct hostent *myhostname __P((char *, int)); 2481 #if NISPLUS 2482 extern char *nisplus_default_domain __P((void)); /* extern for Sun */ 2483 #endif /* NISPLUS */ 2484 extern bool path_is_dir __P((char *, bool)); 2485 extern int pickqdir __P((QUEUEGRP *qg, long fsize, ENVELOPE *e)); 2486 extern char *pintvl __P((time_t, bool)); 2487 extern void printav __P((char **)); 2488 extern void printmailer __P((MAILER *)); 2489 extern void printnqe __P((SM_FILE_T *, char *)); 2490 extern void printopenfds __P((bool)); 2491 extern void printqueue __P((void)); 2492 extern void printrules __P((void)); 2493 extern pid_t prog_open __P((char **, int *, ENVELOPE *)); 2494 extern void putline __P((char *, MCI *)); 2495 extern void putxline __P((char *, size_t, MCI *, int)); 2496 extern void queueup_macros __P((int, SM_FILE_T *, ENVELOPE *)); 2497 extern void readcf __P((char *, bool, ENVELOPE *)); 2498 extern SIGFUNC_DECL reapchild __P((int)); 2499 extern int releasesignal __P((int)); 2500 extern void resetlimits __P((void)); 2501 extern void restart_daemon __P((void)); 2502 extern void restart_marked_work_groups __P(()); 2503 extern bool rfc822_string __P((char *)); 2504 extern bool savemail __P((ENVELOPE *, bool)); 2505 extern void seed_random __P((void)); 2506 extern void sendtoargv __P((char **, ENVELOPE *)); 2507 extern void setclientoptions __P((char *)); 2508 extern bool setdaemonoptions __P((char *)); 2509 extern void setdefaults __P((ENVELOPE *)); 2510 extern void setdefuser __P((void)); 2511 extern bool setvendor __P((char *)); 2512 extern void set_op_mode __P((int)); 2513 extern void setoption __P((int, char *, bool, bool, ENVELOPE *)); 2514 extern sigfunc_t setsignal __P((int, sigfunc_t)); 2515 extern void setuserenv __P((const char *, const char *)); 2516 extern void settime __P((ENVELOPE *)); 2517 extern char *sfgets __P((char *, int, SM_FILE_T *, time_t, char *)); 2518 extern char *shortenstring __P((const char *, size_t)); 2519 extern char *shorten_hostname __P((char [])); 2520 extern bool shorten_rfc822_string __P((char *, size_t)); 2521 extern void shutdown_daemon __P((void)); 2522 extern struct hostent *sm_gethostbyname __P((char *, int)); 2523 extern struct hostent *sm_gethostbyaddr __P((char *, int, int)); 2524 extern void sm_getla __P((void)); 2525 extern struct passwd *sm_getpwnam __P((char *)); 2526 extern struct passwd *sm_getpwuid __P((UID_T)); 2527 extern void sm_setproctitle __P((bool, ENVELOPE *, const char *, ...)); 2528 extern pid_t sm_wait __P((int *)); 2529 extern bool split_by_recipient __P((ENVELOPE *e)); 2530 extern void stop_sendmail __P((void)); 2531 extern char *str2prt __P((char *)); 2532 #if _FFR_STRIPBACKSL 2533 extern void stripbackslash __P((char *)); 2534 #endif /* _FFR_STRIPBACKSL */ 2535 extern bool strreplnonprt __P((char *, int)); 2536 extern bool strcontainedin __P((bool, char *, char *)); 2537 extern int switch_map_find __P((char *, char *[], short [])); 2538 extern bool transienterror __P((int)); 2539 #if _FFR_BESTMX_BETTER_TRUNCATION || _FFR_DNSMAP_MULTI 2540 extern void truncate_at_delim __P((char *, size_t, int)); 2541 #endif /* _FFR_BESTMX_BETTER_TRUNCATION || _FFR_DNSMAP_MULTI */ 2542 extern void tTflag __P((char *)); 2543 extern void tTsetup __P((unsigned char *, unsigned int, char *)); 2544 extern SIGFUNC_DECL tick __P((int)); 2545 extern char *ttypath __P((void)); 2546 extern void unlockqueue __P((ENVELOPE *)); 2547 #if !HASUNSETENV 2548 extern void unsetenv __P((char *)); 2549 #endif /* !HASUNSETENV */ 2550 2551 /* update file system information: +/- some blocks */ 2552 #if SM_CONF_SHM 2553 extern void upd_qs __P((ENVELOPE *, bool, bool)); 2554 # define updfs(e, delete, avail) upd_qs(e, delete, avail) 2555 #else /* SM_CONF_SHM */ 2556 # define updfs(e, delete, avail) 2557 #endif /* SM_CONF_SHM */ 2558 2559 extern char *username __P((void)); 2560 extern bool usershellok __P((char *, char *)); 2561 extern void vendor_post_defaults __P((ENVELOPE *)); 2562 extern void vendor_pre_defaults __P((ENVELOPE *)); 2563 extern int waitfor __P((pid_t)); 2564 extern bool writable __P((char *, ADDRESS *, long)); 2565 #if SM_HEAP_CHECK 2566 # define xalloc(size) xalloc_tagged(size, __FILE__, __LINE__) 2567 extern char *xalloc_tagged __P((int, char*, int)); 2568 #else /* SM_HEAP_CHECK */ 2569 extern char *xalloc __P((int)); 2570 #endif /* SM_HEAP_CHECK */ 2571 extern void xputs __P((const char *)); 2572 extern char *xtextify __P((char *, char *)); 2573 extern bool xtextok __P((char *)); 2574 extern int xunlink __P((char *)); 2575 extern char *xuntextify __P((char *)); 2576 2577 2578 #endif /* ! _SENDMAIL_H */ 2579