1 /* 2 * Copyright (c) 1998-2002 Sendmail, Inc. and its suppliers. 3 * All rights reserved. 4 * Copyright (c) 1983, 1995-1997 Eric P. Allman. All rights reserved. 5 * Copyright (c) 1988, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * By using this file, you agree to the terms and conditions set 9 * forth in the LICENSE file which can be found at the top level of 10 * the sendmail distribution. 11 */ 12 13 /* 14 ** SENDMAIL.H -- MTA-specific definitions for sendmail. 15 */ 16 17 #ifndef _SENDMAIL_H 18 # define _SENDMAIL_H 1 19 20 #ifdef _DEFINE 21 # define EXTERN 22 #else /* _DEFINE */ 23 # define EXTERN extern 24 #endif /* _DEFINE */ 25 26 27 #include <unistd.h> 28 29 #include <stddef.h> 30 #include <stdlib.h> 31 #include <stdio.h> 32 #include <ctype.h> 33 #include <setjmp.h> 34 #include <string.h> 35 #include <time.h> 36 # ifdef EX_OK 37 # undef EX_OK /* for SVr4.2 SMP */ 38 # endif /* EX_OK */ 39 40 #include "sendmail/sendmail.h" 41 42 /* profiling? */ 43 #if MONCONTROL 44 # define SM_PROF(x) moncontrol(x) 45 #else /* MONCONTROL */ 46 # define SM_PROF(x) 47 #endif /* MONCONTROL */ 48 49 #ifdef _DEFINE 50 # ifndef lint 51 SM_UNUSED(static char SmailId[]) = "@(#)$Id: sendmail.h,v 8.902 2002/01/09 00:10:11 ca Exp $"; 52 # endif /* ! lint */ 53 #endif /* _DEFINE */ 54 55 #include "bf.h" 56 #include "timers.h" 57 #include <sm/exc.h> 58 #include <sm/heap.h> 59 #include <sm/debug.h> 60 #include <sm/rpool.h> 61 #include <sm/io.h> 62 #include <sm/path.h> 63 #include <sm/signal.h> 64 #include <sm/clock.h> 65 #include <sm/mbdb.h> 66 #include <sm/errstring.h> 67 #include <sm/sysexits.h> 68 #include <sm/shm.h> 69 70 #ifdef LOG 71 # include <syslog.h> 72 #endif /* LOG */ 73 74 75 76 # if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 77 # include <sys/socket.h> 78 # endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */ 79 # if NETUNIX 80 # include <sys/un.h> 81 # endif /* NETUNIX */ 82 # if NETINET || NETINET6 83 # include <netinet/in.h> 84 # endif /* NETINET || NETINET6 */ 85 # if NETINET6 86 /* 87 ** There is no standard yet for IPv6 includes. 88 ** Specify OS specific implementation in conf.h 89 */ 90 # endif /* NETINET6 */ 91 # if NETISO 92 # include <netiso/iso.h> 93 # endif /* NETISO */ 94 # if NETNS 95 # include <netns/ns.h> 96 # endif /* NETNS */ 97 # if NETX25 98 # include <netccitt/x25.h> 99 # endif /* NETX25 */ 100 101 # if NAMED_BIND 102 # include <arpa/nameser.h> 103 # ifdef NOERROR 104 # undef NOERROR /* avoid <sys/streams.h> conflict */ 105 # endif /* NOERROR */ 106 # include <resolv.h> 107 # else /* NAMED_BIND */ 108 # undef SM_SET_H_ERRNO 109 # define SM_SET_H_ERRNO(err) 110 # endif /* NAMED_BIND */ 111 112 # if HESIOD 113 # include <hesiod.h> 114 # if !defined(HES_ER_OK) || defined(HESIOD_INTERFACES) 115 # define HESIOD_INIT /* support for the new interface */ 116 # endif /* !defined(HES_ER_OK) || defined(HESIOD_INTERFACES) */ 117 # endif /* HESIOD */ 118 119 #if STARTTLS 120 # include <openssl/ssl.h> 121 # if !TLS_NO_RSA 122 # define RSA_KEYLENGTH 512 123 # endif /* !TLS_NO_RSA */ 124 #endif /* STARTTLS */ 125 126 #if SASL /* include the sasl include files if we have them */ 127 # include <sasl.h> 128 # if defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) 129 # define SASL_VERSION (SASL_VERSION_MAJOR * 10000) + (SASL_VERSION_MINOR * 100) + SASL_VERSION_STEP 130 # if SASL == 1 131 # undef SASL 132 # define SASL SASL_VERSION 133 # else /* SASL == 1 */ 134 # if SASL != SASL_VERSION 135 ERROR README: -DSASL (SASL) does not agree with the version of the CYRUS_SASL library (SASL_VERSION) 136 ERROR README: see README! 137 # endif /* SASL != SASL_VERSION */ 138 # endif /* SASL == 1 */ 139 # else /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */ 140 # if SASL == 1 141 ERROR README: please set -DSASL to the version of the CYRUS_SASL library 142 ERROR README: see README! 143 # endif /* SASL == 1 */ 144 # endif /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */ 145 #endif /* SASL */ 146 147 /* 148 ** Following are "sort of" configuration constants, but they should 149 ** be pretty solid on most architectures today. They have to be 150 ** defined after <arpa/nameser.h> because some versions of that 151 ** file also define them. In all cases, we can't use sizeof because 152 ** some systems (e.g., Crays) always treat everything as being at 153 ** least 64 bits. 154 */ 155 156 #ifndef INADDRSZ 157 # define INADDRSZ 4 /* size of an IPv4 address in bytes */ 158 #endif /* ! INADDRSZ */ 159 #ifndef IN6ADDRSZ 160 # define IN6ADDRSZ 16 /* size of an IPv6 address in bytes */ 161 #endif /* ! IN6ADDRSZ */ 162 #ifndef INT16SZ 163 # define INT16SZ 2 /* size of a 16 bit integer in bytes */ 164 #endif /* ! INT16SZ */ 165 #ifndef INT32SZ 166 # define INT32SZ 4 /* size of a 32 bit integer in bytes */ 167 #endif /* ! INT32SZ */ 168 #ifndef INADDR_LOOPBACK 169 # define INADDR_LOOPBACK 0x7f000001 /* loopback address */ 170 #endif /* ! INADDR_LOOPBACK */ 171 172 /* 173 ** Error return from inet_addr(3), in case not defined in /usr/include. 174 */ 175 176 #ifndef INADDR_NONE 177 # define INADDR_NONE 0xffffffff 178 #endif /* ! INADDR_NONE */ 179 180 181 /* 182 ** An 'argument class' describes the storage allocation status 183 ** of an object pointed to by an argument to a function. 184 */ 185 186 typedef enum 187 { 188 A_HEAP, /* the storage was allocated by malloc, and the 189 * ownership of the storage is ceded by the caller 190 * to the called function. */ 191 A_TEMP, /* The storage is temporary, and is only guaranteed 192 * to be valid for the duration of the function call. */ 193 A_PERM /* The storage is 'permanent': this might mean static 194 * storage, or rpool storage. */ 195 } ARGCLASS_T; 196 197 /* forward references for prototypes */ 198 typedef struct envelope ENVELOPE; 199 typedef struct mailer MAILER; 200 typedef struct queuegrp QUEUEGRP; 201 202 /* 203 ** Address structure. 204 ** Addresses are stored internally in this structure. 205 */ 206 207 struct address 208 { 209 char *q_paddr; /* the printname for the address */ 210 char *q_user; /* user name */ 211 char *q_ruser; /* real user name, or NULL if q_user */ 212 char *q_host; /* host name */ 213 struct mailer *q_mailer; /* mailer to use */ 214 unsigned long q_flags; /* status flags, see below */ 215 uid_t q_uid; /* user-id of receiver (if known) */ 216 gid_t q_gid; /* group-id of receiver (if known) */ 217 char *q_home; /* home dir (local mailer only) */ 218 char *q_fullname; /* full name if known */ 219 struct address *q_next; /* chain */ 220 struct address *q_alias; /* address this results from */ 221 char *q_owner; /* owner of q_alias */ 222 struct address *q_tchain; /* temporary use chain */ 223 #if PIPELINING 224 struct address *q_pchain; /* chain for pipelining */ 225 #endif /* PIPELINING */ 226 char *q_finalrcpt; /* Final-Recipient: DSN header */ 227 char *q_orcpt; /* ORCPT parameter from RCPT TO: line */ 228 char *q_status; /* status code for DSNs */ 229 char *q_rstatus; /* remote status message for DSNs */ 230 time_t q_statdate; /* date of status messages */ 231 char *q_statmta; /* MTA generating q_rstatus */ 232 short q_state; /* address state, see below */ 233 char *q_signature; /* MX-based sorting value */ 234 int q_qgrp; /* index into queue groups */ 235 int q_qdir; /* queue directory inside group */ 236 char *q_message; /* error message */ 237 }; 238 239 typedef struct address ADDRESS; 240 241 /* bit values for q_flags */ 242 #define QGOODUID 0x00000001 /* the q_uid q_gid fields are good */ 243 #define QPRIMARY 0x00000002 /* set from RCPT or argv */ 244 #define QNOTREMOTE 0x00000004 /* address not for remote forwarding */ 245 #define QSELFREF 0x00000008 /* this address references itself */ 246 #define QBOGUSSHELL 0x00000010 /* user has no valid shell listed */ 247 #define QUNSAFEADDR 0x00000020 /* address acquired via unsafe path */ 248 #define QPINGONSUCCESS 0x00000040 /* give return on successful delivery */ 249 #define QPINGONFAILURE 0x00000080 /* give return on failure */ 250 #define QPINGONDELAY 0x00000100 /* give return on message delay */ 251 #define QHASNOTIFY 0x00000200 /* propagate notify parameter */ 252 #define QRELAYED 0x00000400 /* DSN: relayed to non-DSN aware sys */ 253 #define QEXPANDED 0x00000800 /* DSN: undergone list expansion */ 254 #define QDELIVERED 0x00001000 /* DSN: successful final delivery */ 255 #define QDELAYED 0x00002000 /* DSN: message delayed */ 256 #define QALIAS 0x00004000 /* expanded alias */ 257 #define QBYTRACE 0x00008000 /* DeliverBy: trace */ 258 #define QBYNDELAY 0x00010000 /* DeliverBy: notify, delay */ 259 #define QBYNRELAY 0x00020000 /* DeliverBy: notify, relayed */ 260 #define QTHISPASS 0x40000000 /* temp: address set this pass */ 261 #define QRCPTOK 0x80000000 /* recipient() processed address */ 262 263 #define Q_PINGFLAGS (QPINGONSUCCESS|QPINGONFAILURE|QPINGONDELAY) 264 265 /* values for q_state */ 266 #define QS_OK 0 /* address ok (for now)/not yet tried */ 267 #define QS_SENT 1 /* good address, delivery complete */ 268 #define QS_BADADDR 2 /* illegal address */ 269 #define QS_QUEUEUP 3 /* save address in queue */ 270 #define QS_RETRY 4 /* retry delivery for next MX */ 271 #define QS_VERIFIED 5 /* verified, but not expanded */ 272 273 /* 274 ** Notice: all of the following values are variations of QS_DONTSEND. 275 ** If new states are added, they must be inserted in the proper place! 276 ** See the macro definition of QS_IS_DEAD() down below. 277 */ 278 279 #define QS_DONTSEND 6 /* don't send to this address */ 280 #define QS_EXPANDED 7 /* expanded */ 281 #define QS_SENDER 8 /* message sender (MeToo) */ 282 #define QS_CLONED 9 /* addr cloned to split envelope */ 283 #define QS_DISCARDED 10 /* rcpt discarded (EF_DISCARD) */ 284 #define QS_REPLACED 11 /* maplocaluser()/UserDB replaced */ 285 #define QS_REMOVED 12 /* removed (removefromlist()) */ 286 #define QS_DUPLICATE 13 /* duplicate suppressed */ 287 #define QS_INCLUDED 14 /* :include: delivery */ 288 289 /* address state testing primitives */ 290 #define QS_IS_OK(s) ((s) == QS_OK) 291 #define QS_IS_SENT(s) ((s) == QS_SENT) 292 #define QS_IS_BADADDR(s) ((s) == QS_BADADDR) 293 #define QS_IS_QUEUEUP(s) ((s) == QS_QUEUEUP) 294 #define QS_IS_RETRY(s) ((s) == QS_RETRY) 295 #define QS_IS_VERIFIED(s) ((s) == QS_VERIFIED) 296 #define QS_IS_EXPANDED(s) ((s) == QS_EXPANDED) 297 #define QS_IS_REMOVED(s) ((s) == QS_REMOVED) 298 #define QS_IS_UNDELIVERED(s) ((s) == QS_OK || \ 299 (s) == QS_QUEUEUP || \ 300 (s) == QS_RETRY || \ 301 (s) == QS_VERIFIED) 302 #define QS_IS_UNMARKED(s) ((s) == QS_OK || \ 303 (s) == QS_RETRY) 304 #define QS_IS_SENDABLE(s) ((s) == QS_OK || \ 305 (s) == QS_QUEUEUP || \ 306 (s) == QS_RETRY) 307 #define QS_IS_ATTEMPTED(s) ((s) == QS_QUEUEUP || \ 308 (s) == QS_RETRY || \ 309 (s) == QS_SENT) 310 #define QS_IS_DEAD(s) ((s) >= QS_DONTSEND) 311 312 313 #define NULLADDR ((ADDRESS *) NULL) 314 315 extern ADDRESS NullAddress; /* a null (template) address [main.c] */ 316 317 /* functions */ 318 extern void cataddr __P((char **, char **, char *, int, int)); 319 extern char *crackaddr __P((char *)); 320 extern bool emptyaddr __P((ADDRESS *)); 321 extern ADDRESS *getctladdr __P((ADDRESS *)); 322 extern int include __P((char *, bool, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 323 extern bool invalidaddr __P((char *, char *, bool)); 324 extern ADDRESS *parseaddr __P((char *, ADDRESS *, int, int, char **, 325 ENVELOPE *, bool)); 326 extern char **prescan __P((char *, int, char[], int, char **, unsigned char *)); 327 extern void printaddr __P((ADDRESS *, bool)); 328 extern ADDRESS *recipient __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 329 extern char *remotename __P((char *, MAILER *, int, int *, ENVELOPE *)); 330 extern int rewrite __P((char **, int, int, ENVELOPE *, int)); 331 extern bool sameaddr __P((ADDRESS *, ADDRESS *)); 332 extern int sendtolist __P((char *, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 333 #if MILTER 334 extern int removefromlist __P((char *, ADDRESS **, ENVELOPE *)); 335 #endif /* MILTER */ 336 extern void setsender __P((char *, ENVELOPE *, char **, int, bool)); 337 338 /* macro to simplify the common call to rewrite() */ 339 #define REWRITE(pvp, rs, env) rewrite(pvp, rs, 0, env, MAXATOM) 340 341 /* 342 ** Mailer definition structure. 343 ** Every mailer known to the system is declared in this 344 ** structure. It defines the pathname of the mailer, some 345 ** flags associated with it, and the argument vector to 346 ** pass to it. The flags are defined in conf.c 347 ** 348 ** The argument vector is expanded before actual use. All 349 ** words except the first are passed through the macro 350 ** processor. 351 */ 352 353 struct mailer 354 { 355 char *m_name; /* symbolic name of this mailer */ 356 char *m_mailer; /* pathname of the mailer to use */ 357 char *m_mtatype; /* type of this MTA */ 358 char *m_addrtype; /* type for addresses */ 359 char *m_diagtype; /* type for diagnostics */ 360 BITMAP256 m_flags; /* status flags, see below */ 361 short m_mno; /* mailer number internally */ 362 short m_nice; /* niceness to run at (mostly for prog) */ 363 char **m_argv; /* template argument vector */ 364 short m_sh_rwset; /* rewrite set: sender header addresses */ 365 short m_se_rwset; /* rewrite set: sender envelope addresses */ 366 short m_rh_rwset; /* rewrite set: recipient header addresses */ 367 short m_re_rwset; /* rewrite set: recipient envelope addresses */ 368 char *m_eol; /* end of line string */ 369 long m_maxsize; /* size limit on message to this mailer */ 370 int m_linelimit; /* max # characters per line */ 371 int m_maxdeliveries; /* max deliveries per mailer connection */ 372 char *m_execdir; /* directory to chdir to before execv */ 373 char *m_rootdir; /* directory to chroot to before execv */ 374 uid_t m_uid; /* UID to run as */ 375 gid_t m_gid; /* GID to run as */ 376 char *m_defcharset; /* default character set */ 377 time_t m_wait; /* timeout to wait for end */ 378 int m_maxrcpt; /* max recipients per envelope client-side */ 379 short m_qgrp; /* queue group for this mailer */ 380 }; 381 382 /* bits for m_flags */ 383 #define M_ESMTP 'a' /* run Extended SMTP */ 384 #define M_ALIASABLE 'A' /* user can be LHS of an alias */ 385 #define M_BLANKEND 'b' /* ensure blank line at end of message */ 386 #define M_NOCOMMENT 'c' /* don't include comment part of address */ 387 #define M_CANONICAL 'C' /* make addresses canonical "u@dom" */ 388 #define M_NOBRACKET 'd' /* never angle bracket envelope route-addrs */ 389 /* 'D' CF: include Date: */ 390 #define M_EXPENSIVE 'e' /* it costs to use this mailer.... */ 391 #define M_ESCFROM 'E' /* escape From lines to >From */ 392 #define M_FOPT 'f' /* mailer takes picky -f flag */ 393 /* 'F' CF: include From: or Resent-From: */ 394 #define M_NO_NULL_FROM 'g' /* sender of errors should be $g */ 395 #define M_HST_UPPER 'h' /* preserve host case distinction */ 396 #define M_PREHEAD 'H' /* MAIL11V3: preview headers */ 397 #define M_UDBENVELOPE 'i' /* do udbsender rewriting on envelope */ 398 #define M_INTERNAL 'I' /* SMTP to another sendmail site */ 399 #define M_UDBRECIPIENT 'j' /* do udbsender rewriting on recipient lines */ 400 #define M_NOLOOPCHECK 'k' /* don't check for loops in HELO command */ 401 #define M_CHUNKING 'K' /* CHUNKING: reserved for future use */ 402 #define M_LOCALMAILER 'l' /* delivery is to this host */ 403 #define M_LIMITS 'L' /* must enforce SMTP line limits */ 404 #define M_MUSER 'm' /* can handle multiple users at once */ 405 /* 'M' CF: include Message-Id: */ 406 #define M_NHDR 'n' /* don't insert From line */ 407 #define M_MANYSTATUS 'N' /* MAIL11V3: DATA returns multi-status */ 408 #define M_RUNASRCPT 'o' /* always run mailer as recipient */ 409 #define M_FROMPATH 'p' /* use reverse-path in MAIL FROM: */ 410 /* 'P' CF: include Return-Path: */ 411 #define M_VRFY250 'q' /* VRFY command returns 250 instead of 252 */ 412 #define M_ROPT 'r' /* mailer takes picky -r flag */ 413 #define M_SECURE_PORT 'R' /* try to send on a reserved TCP port */ 414 #define M_STRIPQ 's' /* strip quote chars from user/host */ 415 #define M_SPECIFIC_UID 'S' /* run as specific uid/gid */ 416 #define M_USR_UPPER 'u' /* preserve user case distinction */ 417 #define M_UGLYUUCP 'U' /* this wants an ugly UUCP from line */ 418 #define M_CONTENT_LEN 'v' /* add Content-Length: header (SVr4) */ 419 /* 'V' UIUC: !-relativize all addresses */ 420 #define M_HASPWENT 'w' /* check for /etc/passwd entry */ 421 /* 'x' CF: include Full-Name: */ 422 #define M_XDOT 'X' /* use hidden-dot algorithm */ 423 #define M_LMTP 'z' /* run Local Mail Transport Protocol */ 424 #define M_DIALDELAY 'Z' /* apply dial delay sleeptime */ 425 #define M_NOMX '0' /* turn off MX lookups */ 426 #define M_NONULLS '1' /* don't send null bytes */ 427 #define M_FSMTP '2' /* force SMTP (no ESMTP even if offered) */ 428 #define M_EBCDIC '3' /* extend Q-P encoding for EBCDIC */ 429 #define M_TRYRULESET5 '5' /* use ruleset 5 after local aliasing */ 430 #define M_7BITHDRS '6' /* strip headers to 7 bits even in 8 bit path */ 431 #define M_7BITS '7' /* use 7-bit path */ 432 #define M_8BITS '8' /* force "just send 8" behaviour */ 433 #define M_MAKE8BIT '9' /* convert 7 -> 8 bit if appropriate */ 434 #define M_CHECKINCLUDE ':' /* check for :include: files */ 435 #define M_CHECKPROG '|' /* check for |program addresses */ 436 #define M_CHECKFILE '/' /* check for /file addresses */ 437 #define M_CHECKUDB '@' /* user can be user database key */ 438 #define M_CHECKHDIR '~' /* SGI: check for valid home directory */ 439 #define M_HOLD '%' /* Hold delivery until ETRN/-qI/-qR/-qS */ 440 #define M_PLUS '+' /* Reserved: Used in mc for adding new flags */ 441 #define M_MINUS '-' /* Reserved: Used in mc for removing flags */ 442 443 /* functions */ 444 extern void initerrmailers __P((void)); 445 extern void makemailer __P((char *)); 446 extern void makequeue __P((char *, bool)); 447 extern void runqueueevent __P((int)); 448 449 EXTERN MAILER *FileMailer; /* ptr to *file* mailer */ 450 EXTERN MAILER *InclMailer; /* ptr to *include* mailer */ 451 EXTERN MAILER *LocalMailer; /* ptr to local mailer */ 452 EXTERN MAILER *ProgMailer; /* ptr to program mailer */ 453 EXTERN MAILER *Mailer[MAXMAILERS + 1]; 454 455 /* 456 ** Queue group definition structure. 457 ** Every queue group known to the system is declared in this structure. 458 ** It defines the basic pathname of the queue group, some flags 459 ** associated with it, and the argument vector to pass to it. 460 */ 461 462 struct qpaths_s 463 { 464 char *qp_name; /* name of queue dir, relative path */ 465 short qp_subdirs; /* use subdirs? */ 466 short qp_fsysidx; /* file system index of this directory */ 467 # if SM_CONF_SHM 468 int qp_idx; /* index into array for queue information */ 469 # endif /* SM_CONF_SHM */ 470 }; 471 472 typedef struct qpaths_s QPATHS; 473 474 struct queuegrp 475 { 476 char *qg_name; /* symbolic name of this queue group */ 477 478 /* 479 ** For now this is the same across all queue groups. 480 ** Otherwise we have to play around with chdir(). 481 */ 482 483 char *qg_qdir; /* common component of queue directory */ 484 short qg_index; /* queue number internally, index in Queue[] */ 485 int qg_maxqrun; /* max # of jobs in 1 queuerun */ 486 int qg_numqueues; /* number of queues in this queue */ 487 488 /* 489 ** qg_queueintvl == 0 denotes that no individual value is used. 490 ** Whatever accesses this must deal with "<= 0" as 491 ** "not set, use appropriate default". 492 */ 493 494 time_t qg_queueintvl; /* interval for queue runs */ 495 QPATHS *qg_qpaths; /* list of queue directories */ 496 BITMAP256 qg_flags; /* status flags, see below */ 497 short qg_nice; /* niceness for queue run */ 498 int qg_wgrp; /* Assigned to this work group */ 499 int qg_maxlist; /* max items in work queue for this group */ 500 int qg_curnum; /* current number of queue for queue runs */ 501 int qg_maxrcpt; /* max recipients per envelope, 0==no limit */ 502 503 #if 0 504 short qg_sortorder; /* how do we sort this queuerun */ 505 long qg_wkrcptfact; /* multiplier for # recipients -> priority */ 506 long qg_qfactor; /* slope of queue function */ 507 bool qg_doqueuerun; /* XXX flag is it time to do a queuerun */ 508 #endif /* 0 */ 509 }; 510 511 /* bits for qg_flags (XXX: unused as of now) */ 512 #define QD_DEFINED ((char) 1) /* queue group has been defined */ 513 #define QD_FORK 'f' /* fork queue runs */ 514 515 extern void filesys_update __P((void)); 516 #if _FFR_ANY_FREE_FS 517 extern bool filesys_free __P((long)); 518 #endif /* _FFR_ANY_FREE_FS */ 519 520 #if SASL 521 /* 522 ** SASL 523 */ 524 525 /* lines in authinfo file or index into SASL_AI_T */ 526 # define SASL_WRONG (-1) 527 # define SASL_USER 0 /* authorization id (user) */ 528 # define SASL_AUTHID 1 /* authentication id */ 529 # define SASL_PASSWORD 2 /* password fuer authid */ 530 # define SASL_DEFREALM 3 /* realm to use */ 531 # define SASL_MECHLIST 4 /* list of mechanisms to try */ 532 # define SASL_ID_REALM 5 /* authid@defrealm */ 533 534 /* 535 ** Current mechanism; this is just used to convey information between 536 ** invocation of SASL callback functions. 537 ** It must be last in the list, because it's not allocated by us 538 ** and hence we don't free() it. 539 */ 540 # define SASL_MECH 6 541 # define SASL_ENTRIES 7 /* number of entries in array */ 542 543 # define SASL_USER_BIT (1 << SASL_USER) 544 # define SASL_AUTHID_BIT (1 << SASL_AUTHID) 545 # define SASL_PASSWORD_BIT (1 << SASL_PASSWORD) 546 # define SASL_DEFREALM_BIT (1 << SASL_DEFREALM) 547 # define SASL_MECHLIST_BIT (1 << SASL_MECHLIST) 548 549 /* authenticated? */ 550 # define SASL_NOT_AUTH 0 /* not authenticated */ 551 # define SASL_PROC_AUTH 1 /* in process of authenticating */ 552 # define SASL_IS_AUTH 2 /* authenticated */ 553 554 /* SASL options */ 555 # define SASL_AUTH_AUTH 0x1000 /* use auth= only if authenticated */ 556 # define SASL_SEC_MASK 0x0fff /* mask for SASL_SEC_* values: sasl.h */ 557 # if (SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 || \ 558 (SASL_SEC_NOACTIVE & SASL_SEC_MASK) == 0 || \ 559 (SASL_SEC_NODICTIONARY & SASL_SEC_MASK) == 0 || \ 560 (SASL_SEC_FORWARD_SECRECY & SASL_SEC_MASK) == 0 || \ 561 (SASL_SEC_NOANONYMOUS & SASL_SEC_MASK) == 0 || \ 562 (SASL_SEC_PASS_CREDENTIALS & SASL_SEC_MASK) == 0 563 ERROR: change SASL_SEC_MASK_ notify sendmail.org! 564 # endif /* SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 ... */ 565 # define MAXOUTLEN 1024 /* length of output buffer */ 566 567 /* functions */ 568 extern char *intersect __P((char *, char *, SM_RPOOL_T *)); 569 extern char *iteminlist __P((char *, char *, char *)); 570 extern int proxy_policy __P((void *, const char *, const char *, const char **, const char **)); 571 # if SASL > 10515 572 extern int safesaslfile __P((void *, char *, int)); 573 # else /* SASL > 10515 */ 574 extern int safesaslfile __P((void *, char *)); 575 # endif /* SASL > 10515 */ 576 extern int sasl_decode64 __P((const char *, unsigned, char *, unsigned *)); 577 extern int sasl_encode64 __P((const char *, unsigned, char *, unsigned, unsigned *)); 578 extern void stop_sasl_client __P((void)); 579 580 /* structure to store authinfo */ 581 typedef char *SASL_AI_T[SASL_ENTRIES]; 582 583 EXTERN char *AuthMechanisms; /* AUTH mechanisms */ 584 EXTERN char *SASLInfo; /* file with AUTH info */ 585 EXTERN int SASLOpts; /* options for SASL */ 586 EXTERN int MaxSLBits; /* max. encryption bits for SASL */ 587 #endif /* SASL */ 588 589 /* 590 ** Structure to store macros. 591 */ 592 typedef struct 593 { 594 SM_RPOOL_T *mac_rpool; /* resource pool */ 595 BITMAP256 mac_allocated; /* storage has been alloc()? */ 596 char *mac_table[MAXMACROID + 1]; /* macros */ 597 } MACROS_T; 598 599 EXTERN MACROS_T GlobalMacros; 600 601 /* 602 ** Information about currently open connections to mailers, or to 603 ** hosts that we have looked up recently. 604 */ 605 606 #define MCI struct mailer_con_info 607 608 MCI 609 { 610 unsigned long mci_flags; /* flag bits, see below */ 611 short mci_errno; /* error number on last connection */ 612 short mci_herrno; /* h_errno from last DNS lookup */ 613 short mci_exitstat; /* exit status from last connection */ 614 short mci_state; /* SMTP state */ 615 int mci_deliveries; /* delivery attempts for connection */ 616 long mci_maxsize; /* max size this server will accept */ 617 SM_FILE_T *mci_in; /* input side of connection */ 618 SM_FILE_T *mci_out; /* output side of connection */ 619 pid_t mci_pid; /* process id of subordinate proc */ 620 char *mci_phase; /* SMTP phase string */ 621 struct mailer *mci_mailer; /* ptr to the mailer for this conn */ 622 char *mci_host; /* host name */ 623 char *mci_status; /* DSN status to be copied to addrs */ 624 char *mci_rstatus; /* SMTP status to be copied to addrs */ 625 time_t mci_lastuse; /* last usage time */ 626 SM_FILE_T *mci_statfile; /* long term status file */ 627 char *mci_heloname; /* name to use as HELO arg */ 628 long mci_min_by; /* minimum DELIVERBY */ 629 bool mci_retryrcpt; /* tempfail for at least one rcpt */ 630 char *mci_tolist; /* list of valid recipients */ 631 SM_RPOOL_T *mci_rpool; /* resource pool */ 632 #if PIPELINING 633 int mci_okrcpts; /* number of valid recipients */ 634 ADDRESS *mci_nextaddr; /* next address for pipelined status */ 635 #endif /* PIPELINING */ 636 #if SASL 637 SASL_AI_T mci_sai; /* authentication info */ 638 bool mci_sasl_auth; /* authenticated? */ 639 int mci_sasl_string_len; 640 char *mci_sasl_string; /* sasl reply string */ 641 char *mci_saslcap; /* SASL list of mechanisms */ 642 sasl_conn_t *mci_conn; /* SASL connection */ 643 #endif /* SASL */ 644 #if STARTTLS 645 SSL *mci_ssl; /* SSL connection */ 646 #endif /* STARTTLS */ 647 MACROS_T mci_macro; /* macro definitions */ 648 }; 649 650 651 /* flag bits */ 652 #define MCIF_VALID 0x00000001 /* this entry is valid */ 653 /* 0x00000002 unused, was MCIF_TEMP */ 654 #define MCIF_CACHED 0x00000004 /* currently in open cache */ 655 #define MCIF_ESMTP 0x00000008 /* this host speaks ESMTP */ 656 #define MCIF_EXPN 0x00000010 /* EXPN command supported */ 657 #define MCIF_SIZE 0x00000020 /* SIZE option supported */ 658 #define MCIF_8BITMIME 0x00000040 /* BODY=8BITMIME supported */ 659 #define MCIF_7BIT 0x00000080 /* strip this message to 7 bits */ 660 #define MCIF_MULTSTAT 0x00000100 /* MAIL11V3: handles MULT status */ 661 #define MCIF_INHEADER 0x00000200 /* currently outputing header */ 662 #define MCIF_CVT8TO7 0x00000400 /* convert from 8 to 7 bits */ 663 #define MCIF_DSN 0x00000800 /* DSN extension supported */ 664 #define MCIF_8BITOK 0x00001000 /* OK to send 8 bit characters */ 665 #define MCIF_CVT7TO8 0x00002000 /* convert from 7 to 8 bits */ 666 #define MCIF_INMIME 0x00004000 /* currently reading MIME header */ 667 #define MCIF_AUTH 0x00008000 /* AUTH= supported */ 668 #define MCIF_AUTHACT 0x00010000 /* SASL (AUTH) active */ 669 #define MCIF_ENHSTAT 0x00020000 /* ENHANCEDSTATUSCODES supported */ 670 #define MCIF_PIPELINED 0x00040000 /* PIPELINING supported */ 671 #if STARTTLS 672 #define MCIF_TLS 0x00100000 /* STARTTLS supported */ 673 #define MCIF_TLSACT 0x00200000 /* STARTTLS active */ 674 #define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT | MCIF_TLS) 675 #else /* STARTTLS */ 676 #define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT) 677 #endif /* STARTTLS */ 678 #define MCIF_DLVR_BY 0x00400000 /* DELIVERBY */ 679 #if _FFR_IGNORE_EXT_ON_HELO 680 # define MCIF_HELO 0x00800000 /* we used HELO: ignore extensions */ 681 #endif /* _FFR_IGNORE_EXT_ON_HELO */ 682 #define MCIF_ONLY_EHLO 0x10000000 /* use only EHLO in smtpinit */ 683 684 /* states */ 685 #define MCIS_CLOSED 0 /* no traffic on this connection */ 686 #define MCIS_OPENING 1 /* sending initial protocol */ 687 #define MCIS_OPEN 2 /* open, initial protocol sent */ 688 #define MCIS_MAIL 3 /* MAIL command sent */ 689 #define MCIS_RCPT 4 /* RCPT commands being sent */ 690 #define MCIS_DATA 5 /* DATA command sent */ 691 #define MCIS_QUITING 6 /* running quit protocol */ 692 #define MCIS_SSD 7 /* service shutting down */ 693 #define MCIS_ERROR 8 /* I/O error on connection */ 694 695 /* functions */ 696 extern void mci_cache __P((MCI *)); 697 extern void mci_dump __P((MCI *, bool)); 698 extern void mci_dump_all __P((bool)); 699 extern void mci_flush __P((bool, MCI *)); 700 extern MCI *mci_get __P((char *, MAILER *)); 701 extern int mci_lock_host __P((MCI *)); 702 extern bool mci_match __P((char *, MAILER *)); 703 extern int mci_print_persistent __P((char *, char *)); 704 extern int mci_purge_persistent __P((char *, char *)); 705 extern MCI **mci_scan __P((MCI *)); 706 extern void mci_setstat __P((MCI *, int, char *, char *)); 707 extern void mci_store_persistent __P((MCI *)); 708 extern int mci_traverse_persistent __P((int (*)(), char *)); 709 extern void mci_unlock_host __P((MCI *)); 710 711 EXTERN int MaxMciCache; /* maximum entries in MCI cache */ 712 EXTERN time_t MciCacheTimeout; /* maximum idle time on connections */ 713 EXTERN time_t MciInfoTimeout; /* how long 'til we retry down hosts */ 714 715 /* 716 ** Header structure. 717 ** This structure is used internally to store header items. 718 */ 719 720 struct header 721 { 722 char *h_field; /* the name of the field */ 723 char *h_value; /* the value of that field */ 724 struct header *h_link; /* the next header */ 725 unsigned char h_macro; /* include header if macro defined */ 726 unsigned long h_flags; /* status bits, see below */ 727 BITMAP256 h_mflags; /* m_flags bits needed */ 728 }; 729 730 typedef struct header HDR; 731 732 /* 733 ** Header information structure. 734 ** Defined in conf.c, this struct declares the header fields 735 ** that have some magic meaning. 736 */ 737 738 struct hdrinfo 739 { 740 char *hi_field; /* the name of the field */ 741 unsigned long hi_flags; /* status bits, see below */ 742 char *hi_ruleset; /* validity check ruleset */ 743 }; 744 745 extern struct hdrinfo HdrInfo[]; 746 747 /* bits for h_flags and hi_flags */ 748 #define H_EOH 0x00000001 /* field terminates header */ 749 #define H_RCPT 0x00000002 /* contains recipient addresses */ 750 #define H_DEFAULT 0x00000004 /* if another value is found, drop this */ 751 #define H_RESENT 0x00000008 /* this address is a "Resent-..." address */ 752 #define H_CHECK 0x00000010 /* check h_mflags against m_flags */ 753 #define H_ACHECK 0x00000020 /* ditto, but always (not just default) */ 754 #define H_FORCE 0x00000040 /* force this field, even if default */ 755 #define H_TRACE 0x00000080 /* this field contains trace information */ 756 #define H_FROM 0x00000100 /* this is a from-type field */ 757 #define H_VALID 0x00000200 /* this field has a validated value */ 758 #define H_RECEIPTTO 0x00000400 /* field has return receipt info */ 759 #define H_ERRORSTO 0x00000800 /* field has error address info */ 760 #define H_CTE 0x00001000 /* field is a content-transfer-encoding */ 761 #define H_CTYPE 0x00002000 /* this is a content-type field */ 762 #define H_BCC 0x00004000 /* Bcc: header: strip value or delete */ 763 #define H_ENCODABLE 0x00008000 /* field can be RFC 1522 encoded */ 764 #define H_STRIPCOMM 0x00010000 /* header check: strip comments */ 765 #define H_BINDLATE 0x00020000 /* only expand macros at deliver */ 766 #define H_USER 0x00040000 /* header came from the user/SMTP */ 767 768 /* bits for chompheader() */ 769 #define CHHDR_DEF 0x0001 /* default header */ 770 #define CHHDR_CHECK 0x0002 /* call ruleset for header */ 771 #define CHHDR_USER 0x0004 /* header from user */ 772 #define CHHDR_QUEUE 0x0008 /* header from queue file */ 773 774 /* functions */ 775 extern void addheader __P((char *, char *, int, ENVELOPE *)); 776 extern unsigned long chompheader __P((char *, int, HDR **, ENVELOPE *)); 777 extern void commaize __P((HDR *, char *, bool, MCI *, ENVELOPE *)); 778 extern HDR *copyheader __P((HDR *, SM_RPOOL_T *)); 779 extern void eatheader __P((ENVELOPE *, bool, bool)); 780 extern char *hvalue __P((char *, HDR *)); 781 extern bool isheader __P((char *)); 782 extern void putfromline __P((MCI *, ENVELOPE *)); 783 extern void setupheaders __P((void)); 784 785 /* 786 ** Performance monitoring 787 */ 788 789 #define TIMERS struct sm_timers 790 791 TIMERS 792 { 793 TIMER ti_overall; /* the whole process */ 794 }; 795 796 797 #define PUSHTIMER(l, t) { if (tTd(98, l)) pushtimer(&t); } 798 #define POPTIMER(l, t) { if (tTd(98, l)) poptimer(&t); } 799 800 /* 801 ** Envelope structure. 802 ** This structure defines the message itself. There is usually 803 ** only one of these -- for the message that we originally read 804 ** and which is our primary interest -- but other envelopes can 805 ** be generated during processing. For example, error messages 806 ** will have their own envelope. 807 */ 808 809 struct envelope 810 { 811 HDR *e_header; /* head of header list */ 812 long e_msgpriority; /* adjusted priority of this message */ 813 time_t e_ctime; /* time message appeared in the queue */ 814 char *e_to; /* (list of) target person(s) */ 815 ADDRESS e_from; /* the person it is from */ 816 char *e_sender; /* e_from.q_paddr w comments stripped */ 817 char **e_fromdomain; /* the domain part of the sender */ 818 ADDRESS *e_sendqueue; /* list of message recipients */ 819 ADDRESS *e_errorqueue; /* the queue for error responses */ 820 821 /* 822 ** Overflow detection is based on < 0, so don't change this 823 ** to unsigned. We don't use unsigned and == ULONG_MAX because 824 ** some libc's don't have strtoul(), see mail_esmtp_args(). 825 */ 826 827 long e_msgsize; /* size of the message in bytes */ 828 char *e_msgid; /* message id (for logging) */ 829 unsigned long e_flags; /* flags, see below */ 830 int e_nrcpts; /* number of recipients */ 831 short e_class; /* msg class (priority, junk, etc.) */ 832 short e_hopcount; /* number of times processed */ 833 short e_nsent; /* number of sends since checkpoint */ 834 short e_sendmode; /* message send mode */ 835 short e_errormode; /* error return mode */ 836 short e_timeoutclass; /* message timeout class */ 837 void (*e_puthdr)__P((MCI *, HDR *, ENVELOPE *, int)); 838 /* function to put header of message */ 839 void (*e_putbody)__P((MCI *, ENVELOPE *, char *)); 840 /* function to put body of message */ 841 ENVELOPE *e_parent; /* the message this one encloses */ 842 ENVELOPE *e_sibling; /* the next envelope of interest */ 843 char *e_bodytype; /* type of message body */ 844 SM_FILE_T *e_dfp; /* data file */ 845 char *e_id; /* code for this entry in queue */ 846 int e_qgrp; /* queue group (index into queues) */ 847 int e_qdir; /* index into queue directories */ 848 int e_dfqgrp; /* data file queue group index */ 849 int e_dfqdir; /* data file queue directory index */ 850 int e_xfqgrp; /* queue group (index into queues) */ 851 int e_xfqdir; /* index into queue directories (xf) */ 852 SM_FILE_T *e_xfp; /* transcript file */ 853 SM_FILE_T *e_lockfp; /* the lock file for this message */ 854 char *e_message; /* error message; readonly; NULL, or 855 * static storage, or allocated from 856 * e_rpool */ 857 char *e_statmsg; /* stat msg (changes per delivery). 858 * readonly. NULL or allocated from 859 * e_rpool. */ 860 #if _FFR_QUARANTINE 861 char *e_quarmsg; /* why envelope is quarantined */ 862 char e_qfletter; /* queue file letter on disk */ 863 #endif /* _FFR_QUARANTINE */ 864 char *e_msgboundary; /* MIME-style message part boundary */ 865 char *e_origrcpt; /* original recipient (one only) */ 866 char *e_envid; /* envelope id from MAIL FROM: line */ 867 char *e_status; /* DSN status for this message */ 868 time_t e_dtime; /* time of last delivery attempt */ 869 int e_ntries; /* number of delivery attempts */ 870 dev_t e_dfdev; /* data file device (crash recovery) */ 871 ino_t e_dfino; /* data file inode (crash recovery) */ 872 MACROS_T e_macro; /* macro definitions */ 873 MCI *e_mci; /* connection info */ 874 char *e_auth_param; /* readonly; NULL or static storage or 875 * allocated from e_rpool */ 876 TIMERS e_timers; /* per job timers */ 877 #if _FFR_QUEUEDELAY 878 int e_queuealg; /* algorithm for queue delay */ 879 time_t e_queuedelay; /* current delay */ 880 #endif /* _FFR_QUEUEDELAY */ 881 long e_deliver_by; /* deliver by */ 882 int e_dlvr_flag; /* deliver by flag */ 883 SM_RPOOL_T *e_rpool; /* resource pool for this envelope */ 884 }; 885 886 /* values for e_flags */ 887 #define EF_OLDSTYLE 0x0000001L /* use spaces (not commas) in hdrs */ 888 #define EF_INQUEUE 0x0000002L /* this message is fully queued */ 889 #define EF_NO_BODY_RETN 0x0000004L /* omit message body on error */ 890 #define EF_CLRQUEUE 0x0000008L /* disk copy is no longer needed */ 891 #define EF_SENDRECEIPT 0x0000010L /* send a return receipt */ 892 #define EF_FATALERRS 0x0000020L /* fatal errors occurred */ 893 #define EF_DELETE_BCC 0x0000040L /* delete Bcc: headers entirely */ 894 #define EF_RESPONSE 0x0000080L /* this is an error or return receipt */ 895 #define EF_RESENT 0x0000100L /* this message is being forwarded */ 896 #define EF_VRFYONLY 0x0000200L /* verify only (don't expand aliases) */ 897 #define EF_WARNING 0x0000400L /* warning message has been sent */ 898 #define EF_QUEUERUN 0x0000800L /* this envelope is from queue */ 899 #define EF_GLOBALERRS 0x0001000L /* treat errors as global */ 900 #define EF_PM_NOTIFY 0x0002000L /* send return mail to postmaster */ 901 #define EF_METOO 0x0004000L /* send to me too */ 902 #define EF_LOGSENDER 0x0008000L /* need to log the sender */ 903 #define EF_NORECEIPT 0x0010000L /* suppress all return-receipts */ 904 #define EF_HAS8BIT 0x0020000L /* at least one 8-bit char in body */ 905 #define EF_NL_NOT_EOL 0x0040000L /* don't accept raw NL as EOLine */ 906 #define EF_CRLF_NOT_EOL 0x0080000L /* don't accept CR-LF as EOLine */ 907 #define EF_RET_PARAM 0x0100000L /* RCPT command had RET argument */ 908 #define EF_HAS_DF 0x0200000L /* set when data file is instantiated */ 909 #define EF_IS_MIME 0x0400000L /* really is a MIME message */ 910 #define EF_DONT_MIME 0x0800000L /* never MIME this message */ 911 #define EF_DISCARD 0x1000000L /* discard the message */ 912 #define EF_TOOBIG 0x2000000L /* message is too big */ 913 #define EF_SPLIT 0x4000000L /* envelope has been split */ 914 #define EF_UNSAFE 0x8000000L /* unsafe: read from untrusted source */ 915 916 #define DLVR_NOTIFY 0x01 917 #define DLVR_RETURN 0x02 918 #define DLVR_TRACE 0x10 919 #define IS_DLVR_NOTIFY(e) (((e)->e_dlvr_flag & DLVR_NOTIFY) != 0) 920 #define IS_DLVR_RETURN(e) (((e)->e_dlvr_flag & DLVR_RETURN) != 0) 921 #define IS_DLVR_TRACE(e) (((e)->e_dlvr_flag & DLVR_TRACE) != 0) 922 #define IS_DLVR_BY(e) ((e)->e_dlvr_flag != 0) 923 924 #define BODYTYPE_NONE (0) 925 #define BODYTYPE_7BIT (1) 926 #define BODYTYPE_8BITMIME (2) 927 #define BODYTYPE_ILLEGAL (-1) 928 #define BODYTYPE_VALID(b) ((b) == BODYTYPE_7BIT || (b) == BODYTYPE_8BITMIME) 929 930 extern ENVELOPE BlankEnvelope; 931 932 /* functions */ 933 extern void clearenvelope __P((ENVELOPE *, bool, SM_RPOOL_T *)); 934 extern void dropenvelope __P((ENVELOPE *, bool, bool)); 935 extern ENVELOPE *newenvelope __P((ENVELOPE *, ENVELOPE *, SM_RPOOL_T *)); 936 extern void printenvflags __P((ENVELOPE *)); 937 extern void putbody __P((MCI *, ENVELOPE *, char *)); 938 extern void putheader __P((MCI *, HDR *, ENVELOPE *, int)); 939 940 /* 941 ** Message priority classes. 942 ** 943 ** The message class is read directly from the Priority: header 944 ** field in the message. 945 ** 946 ** CurEnv->e_msgpriority is the number of bytes in the message plus 947 ** the creation time (so that jobs ``tend'' to be ordered correctly), 948 ** adjusted by the message class, the number of recipients, and the 949 ** amount of time the message has been sitting around. This number 950 ** is used to order the queue. Higher values mean LOWER priority. 951 ** 952 ** Each priority class point is worth WkClassFact priority points; 953 ** each recipient is worth WkRecipFact priority points. Each time 954 ** we reprocess a message the priority is adjusted by WkTimeFact. 955 ** WkTimeFact should normally decrease the priority so that jobs 956 ** that have historically failed will be run later; thanks go to 957 ** Jay Lepreau at Utah for pointing out the error in my thinking. 958 ** 959 ** The "class" is this number, unadjusted by the age or size of 960 ** this message. Classes with negative representations will have 961 ** error messages thrown away if they are not local. 962 */ 963 964 struct priority 965 { 966 char *pri_name; /* external name of priority */ 967 int pri_val; /* internal value for same */ 968 }; 969 970 EXTERN int NumPriorities; /* pointer into Priorities */ 971 EXTERN struct priority Priorities[MAXPRIORITIES]; 972 973 /* 974 ** Rewrite rules. 975 */ 976 977 struct rewrite 978 { 979 char **r_lhs; /* pattern match */ 980 char **r_rhs; /* substitution value */ 981 struct rewrite *r_next;/* next in chain */ 982 int r_line; /* rule line in sendmail.cf */ 983 }; 984 985 /* 986 ** Special characters in rewriting rules. 987 ** These are used internally only. 988 ** The COND* rules are actually used in macros rather than in 989 ** rewriting rules, but are given here because they 990 ** cannot conflict. 991 */ 992 993 /* left hand side items */ 994 #define MATCHZANY ((unsigned char)0220) /* match zero or more tokens */ 995 #define MATCHANY ((unsigned char)0221) /* match one or more tokens */ 996 #define MATCHONE ((unsigned char)0222) /* match exactly one token */ 997 #define MATCHCLASS ((unsigned char)0223) /* match one token in a class */ 998 #define MATCHNCLASS ((unsigned char)0224) /* match anything not in class */ 999 #define MATCHREPL ((unsigned char)0225) /* replacement on RHS for above */ 1000 1001 /* right hand side items */ 1002 #define CANONNET ((unsigned char)0226) /* canonical net, next token */ 1003 #define CANONHOST ((unsigned char)0227) /* canonical host, next token */ 1004 #define CANONUSER ((unsigned char)0230) /* canonical user, next N tokens */ 1005 #define CALLSUBR ((unsigned char)0231) /* call another rewriting set */ 1006 1007 /* conditionals in macros */ 1008 #define CONDIF ((unsigned char)0232) /* conditional if-then */ 1009 #define CONDELSE ((unsigned char)0233) /* conditional else */ 1010 #define CONDFI ((unsigned char)0234) /* conditional fi */ 1011 1012 /* bracket characters for host name lookup */ 1013 #define HOSTBEGIN ((unsigned char)0235) /* hostname lookup begin */ 1014 #define HOSTEND ((unsigned char)0236) /* hostname lookup end */ 1015 1016 /* bracket characters for generalized lookup */ 1017 #define LOOKUPBEGIN ((unsigned char)0205) /* generalized lookup begin */ 1018 #define LOOKUPEND ((unsigned char)0206) /* generalized lookup end */ 1019 1020 /* macro substitution character */ 1021 #define MACROEXPAND ((unsigned char)0201) /* macro expansion */ 1022 #define MACRODEXPAND ((unsigned char)0202) /* deferred macro expansion */ 1023 1024 /* to make the code clearer */ 1025 #define MATCHZERO CANONHOST 1026 1027 #define MAXMATCH 9 /* max params per rewrite */ 1028 1029 /* external <==> internal mapping table */ 1030 struct metamac 1031 { 1032 char metaname; /* external code (after $) */ 1033 unsigned char metaval; /* internal code (as above) */ 1034 }; 1035 1036 /* values for macros with external names only */ 1037 #define MID_OPMODE 0202 /* operation mode */ 1038 1039 /* functions */ 1040 #if SM_HEAP_CHECK 1041 extern void 1042 macdefine_tagged __P(( 1043 MACROS_T *_mac, 1044 ARGCLASS_T _vclass, 1045 int _id, 1046 char *_value, 1047 char *_file, 1048 int _line, 1049 int _group)); 1050 # define macdefine(mac,c,id,v) \ 1051 macdefine_tagged(mac,c,id,v,__FILE__,__LINE__,sm_heap_group()) 1052 #else /* SM_HEAP_CHECK */ 1053 extern void 1054 macdefine __P(( 1055 MACROS_T *_mac, 1056 ARGCLASS_T _vclass, 1057 int _id, 1058 char *_value)); 1059 # define macdefine_tagged(mac,c,id,v,file,line,grp) macdefine(mac,c,id,v) 1060 #endif /* SM_HEAP_CHECK */ 1061 extern void macset __P((MACROS_T *, int, char *)); 1062 #define macget(mac, i) (mac)->mac_table[i] 1063 extern void expand __P((char *, char *, size_t, ENVELOPE *)); 1064 extern int macid_parse __P((char *, char **)); 1065 #define macid(name) macid_parse(name, NULL) 1066 extern char *macname __P((int)); 1067 extern char *macvalue __P((int, ENVELOPE *)); 1068 extern int rscheck __P((char *, char *, char *, ENVELOPE *, bool, bool, int, char *, char *)); 1069 extern int rscap __P((char *, char *, char *, ENVELOPE *, char ***, char *, int)); 1070 extern void setclass __P((int, char *)); 1071 extern int strtorwset __P((char *, char **, int)); 1072 extern void translate_dollars __P((char *)); 1073 extern bool wordinclass __P((char *, int)); 1074 1075 /* 1076 ** Name canonification short circuit. 1077 ** 1078 ** If the name server for a host is down, the process of trying to 1079 ** canonify the name can hang. This is similar to (but alas, not 1080 ** identical to) looking up the name for delivery. This stab type 1081 ** caches the result of the name server lookup so we don't hang 1082 ** multiple times. 1083 */ 1084 1085 #define NAMECANON struct _namecanon 1086 1087 NAMECANON 1088 { 1089 short nc_errno; /* cached errno */ 1090 short nc_herrno; /* cached h_errno */ 1091 short nc_stat; /* cached exit status code */ 1092 short nc_flags; /* flag bits */ 1093 char *nc_cname; /* the canonical name */ 1094 time_t nc_exp; /* entry expires at */ 1095 }; 1096 1097 /* values for nc_flags */ 1098 #define NCF_VALID 0x0001 /* entry valid */ 1099 1100 /* hostsignature structure */ 1101 1102 struct hostsig_t 1103 { 1104 char *hs_sig; /* hostsignature */ 1105 time_t hs_exp; /* entry expires at */ 1106 }; 1107 1108 typedef struct hostsig_t HOSTSIG_T; 1109 1110 /* functions */ 1111 extern bool getcanonname __P((char *, int, bool, int *)); 1112 extern int getmxrr __P((char *, char **, unsigned short *, bool, int *, bool, int *)); 1113 extern char *hostsignature __P((MAILER *, char *)); 1114 extern int getfallbackmxrr __P((char *)); 1115 1116 /* 1117 ** Mapping functions 1118 ** 1119 ** These allow arbitrary mappings in the config file. The idea 1120 ** (albeit not the implementation) comes from IDA sendmail. 1121 */ 1122 1123 #define MAPCLASS struct _mapclass 1124 #define MAP struct _map 1125 #define MAXMAPACTIONS 5 /* size of map_actions array */ 1126 1127 1128 /* 1129 ** An actual map. 1130 */ 1131 1132 MAP 1133 { 1134 MAPCLASS *map_class; /* the class of this map */ 1135 MAPCLASS *map_orgclass; /* the original class of this map */ 1136 char *map_mname; /* name of this map */ 1137 long map_mflags; /* flags, see below */ 1138 char *map_file; /* the (nominal) filename */ 1139 ARBPTR_T map_db1; /* the open database ptr */ 1140 ARBPTR_T map_db2; /* an "extra" database pointer */ 1141 char *map_keycolnm; /* key column name */ 1142 char *map_valcolnm; /* value column name */ 1143 unsigned char map_keycolno; /* key column number */ 1144 unsigned char map_valcolno; /* value column number */ 1145 char map_coldelim; /* column delimiter */ 1146 char map_spacesub; /* spacesub */ 1147 char *map_app; /* to append to successful matches */ 1148 char *map_tapp; /* to append to "tempfail" matches */ 1149 char *map_domain; /* the (nominal) NIS domain */ 1150 char *map_rebuild; /* program to run to do auto-rebuild */ 1151 time_t map_mtime; /* last database modification time */ 1152 time_t map_timeout; /* timeout for map accesses */ 1153 int map_retry; /* # of retries for map accesses */ 1154 pid_t map_pid; /* PID of process which opened map */ 1155 int map_lockfd; /* auxiliary lock file descriptor */ 1156 short map_specificity; /* specificity of aliases */ 1157 MAP *map_stack[MAXMAPSTACK]; /* list for stacked maps */ 1158 short map_return[MAXMAPACTIONS]; /* return bitmaps for stacked maps */ 1159 }; 1160 1161 1162 /* bit values for map_mflags */ 1163 #define MF_VALID 0x00000001 /* this entry is valid */ 1164 #define MF_INCLNULL 0x00000002 /* include null byte in key */ 1165 #define MF_OPTIONAL 0x00000004 /* don't complain if map not found */ 1166 #define MF_NOFOLDCASE 0x00000008 /* don't fold case in keys */ 1167 #define MF_MATCHONLY 0x00000010 /* don't use the map value */ 1168 #define MF_OPEN 0x00000020 /* this entry is open */ 1169 #define MF_WRITABLE 0x00000040 /* open for writing */ 1170 #define MF_ALIAS 0x00000080 /* this is an alias file */ 1171 #define MF_TRY0NULL 0x00000100 /* try with no null byte */ 1172 #define MF_TRY1NULL 0x00000200 /* try with the null byte */ 1173 #define MF_LOCKED 0x00000400 /* this map is currently locked */ 1174 #define MF_ALIASWAIT 0x00000800 /* alias map in aliaswait state */ 1175 #define MF_IMPL_HASH 0x00001000 /* implicit: underlying hash database */ 1176 #define MF_IMPL_NDBM 0x00002000 /* implicit: underlying NDBM database */ 1177 /* 0x00004000 */ 1178 #define MF_APPEND 0x00008000 /* append new entry on rebuild */ 1179 #define MF_KEEPQUOTES 0x00010000 /* don't dequote key before lookup */ 1180 #define MF_NODEFER 0x00020000 /* don't defer if map lookup fails */ 1181 #define MF_REGEX_NOT 0x00040000 /* regular expression negation */ 1182 #define MF_DEFER 0x00080000 /* don't lookup map in defer mode */ 1183 #define MF_SINGLEMATCH 0x00100000 /* successful only if match one key */ 1184 /* 0x00200000 available for use */ 1185 #define MF_FILECLASS 0x00400000 /* this is a file class map */ 1186 #define MF_OPENBOGUS 0x00800000 /* open failed, don't call map_close */ 1187 #define MF_CLOSING 0x01000000 /* map is being closed */ 1188 1189 #define DYNOPENMAP(map) if (!bitset(MF_OPEN, (map)->map_mflags)) \ 1190 { \ 1191 if (!openmap(map)) \ 1192 return NULL; \ 1193 } 1194 1195 1196 /* indices for map_actions */ 1197 #define MA_NOTFOUND 0 /* member map returned "not found" */ 1198 #define MA_UNAVAIL 1 /* member map is not available */ 1199 #define MA_TRYAGAIN 2 /* member map returns temp failure */ 1200 1201 /* macros to handle MapTempFail */ 1202 #define BIT_IS_MTP 0x01 /* temp.failure occurred */ 1203 #define BIT_ASK_MTP 0x02 /* do we care about MapTempFail? */ 1204 #define RESET_MAPTEMPFAIL MapTempFail = 0 1205 #define INIT_MAPTEMPFAIL MapTempFail = BIT_ASK_MTP 1206 #define SET_MAPTEMPFAIL MapTempFail |= BIT_IS_MTP 1207 #define IS_MAPTEMPFAIL bitset(BIT_IS_MTP, MapTempFail) 1208 #define ASK_MAPTEMPFAIL bitset(BIT_ASK_MTP, MapTempFail) 1209 1210 /* 1211 ** The class of a map -- essentially the functions to call 1212 */ 1213 1214 MAPCLASS 1215 { 1216 char *map_cname; /* name of this map class */ 1217 char *map_ext; /* extension for database file */ 1218 short map_cflags; /* flag bits, see below */ 1219 bool (*map_parse)__P((MAP *, char *)); 1220 /* argument parsing function */ 1221 char *(*map_lookup)__P((MAP *, char *, char **, int *)); 1222 /* lookup function */ 1223 void (*map_store)__P((MAP *, char *, char *)); 1224 /* store function */ 1225 bool (*map_open)__P((MAP *, int)); 1226 /* open function */ 1227 void (*map_close)__P((MAP *)); 1228 /* close function */ 1229 }; 1230 1231 /* bit values for map_cflags */ 1232 #define MCF_ALIASOK 0x0001 /* can be used for aliases */ 1233 #define MCF_ALIASONLY 0x0002 /* usable only for aliases */ 1234 #define MCF_REBUILDABLE 0x0004 /* can rebuild alias files */ 1235 #define MCF_OPTFILE 0x0008 /* file name is optional */ 1236 #define MCF_NOTPERSIST 0x0010 /* don't keep map open all the time */ 1237 1238 /* functions */ 1239 extern void closemaps __P((bool)); 1240 extern bool impl_map_open __P((MAP *, int)); 1241 extern void initmaps __P((void)); 1242 extern MAP *makemapentry __P((char *)); 1243 extern void maplocaluser __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1244 extern char *map_rewrite __P((MAP *, const char *, size_t, char **)); 1245 #if NETINFO 1246 extern char *ni_propval __P((char *, char *, char *, char *, int)); 1247 #endif /* NETINFO */ 1248 extern bool openmap __P((MAP *)); 1249 #if USERDB 1250 extern void _udbx_close __P((void)); 1251 extern int udbexpand __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1252 extern char *udbsender __P((char *, SM_RPOOL_T *)); 1253 #endif /* USERDB */ 1254 1255 /* 1256 ** LDAP related items 1257 */ 1258 #if LDAPMAP 1259 /* struct defining LDAP Auth Methods */ 1260 struct lamvalues 1261 { 1262 char *lam_name; /* name of LDAP auth method */ 1263 int lam_code; /* numeric code */ 1264 }; 1265 1266 /* struct defining LDAP Alias Dereferencing */ 1267 struct ladvalues 1268 { 1269 char *lad_name; /* name of LDAP alias dereferencing method */ 1270 int lad_code; /* numeric code */ 1271 }; 1272 1273 /* struct defining LDAP Search Scope */ 1274 struct lssvalues 1275 { 1276 char *lss_name; /* name of LDAP search scope */ 1277 int lss_code; /* numeric code */ 1278 }; 1279 1280 /* functions */ 1281 extern bool ldapmap_parseargs __P((MAP *, char *)); 1282 extern void ldapmap_set_defaults __P((char *)); 1283 #endif /* LDAPMAP */ 1284 1285 /* 1286 ** PH related items 1287 */ 1288 1289 #if PH_MAP 1290 1291 # include <phclient.h> 1292 1293 struct ph_map_struct 1294 { 1295 char *ph_servers; /* list of ph servers */ 1296 char *ph_field_list; /* list of fields to search for match */ 1297 PH *ph; /* PH server handle */ 1298 int ph_fastclose; /* send "quit" command on close */ 1299 time_t ph_timeout; /* timeout interval */ 1300 }; 1301 typedef struct ph_map_struct PH_MAP_STRUCT; 1302 1303 #endif /* PH_MAP */ 1304 /* 1305 ** Process List (proclist) 1306 */ 1307 1308 #define NO_PID ((pid_t) 0) 1309 #ifndef PROC_LIST_SEG 1310 # define PROC_LIST_SEG 32 /* number of pids to alloc at a time */ 1311 #endif /* ! PROC_LIST_SEG */ 1312 1313 /* process types */ 1314 #define PROC_NONE 0 1315 #define PROC_DAEMON 1 1316 #define PROC_DAEMON_CHILD 2 1317 #define PROC_QUEUE 3 1318 #define PROC_QUEUE_CHILD 3 1319 #define PROC_CONTROL 4 1320 #define PROC_CONTROL_CHILD 5 1321 1322 /* functions */ 1323 extern void proc_list_add __P((pid_t, char *, int, int, int)); 1324 extern void proc_list_clear __P((void)); 1325 extern void proc_list_display __P((SM_FILE_T *, char *)); 1326 extern void proc_list_drop __P((pid_t, int, int *)); 1327 extern void proc_list_probe __P((void)); 1328 extern void proc_list_set __P((pid_t, char *)); 1329 extern void proc_list_signal __P((int, int)); 1330 1331 /* 1332 ** Symbol table definitions 1333 */ 1334 1335 struct symtab 1336 { 1337 char *s_name; /* name to be entered */ 1338 short s_symtype; /* general type (see below) */ 1339 struct symtab *s_next; /* pointer to next in chain */ 1340 union 1341 { 1342 BITMAP256 sv_class; /* bit-map of word classes */ 1343 ADDRESS *sv_addr; /* pointer to address header */ 1344 MAILER *sv_mailer; /* pointer to mailer */ 1345 char *sv_alias; /* alias */ 1346 MAPCLASS sv_mapclass; /* mapping function class */ 1347 MAP sv_map; /* mapping function */ 1348 HOSTSIG_T sv_hostsig; /* host signature */ 1349 MCI sv_mci; /* mailer connection info */ 1350 NAMECANON sv_namecanon; /* canonical name cache */ 1351 int sv_macro; /* macro name => id mapping */ 1352 int sv_ruleset; /* ruleset index */ 1353 struct hdrinfo sv_header; /* header metainfo */ 1354 char *sv_service[MAXMAPSTACK]; /* service switch */ 1355 #if LDAPMAP 1356 MAP *sv_lmap; /* Maps for LDAP connection */ 1357 #endif /* LDAPMAP */ 1358 #if MILTER 1359 struct milter *sv_milter; /* milter filter name */ 1360 #endif /* MILTER */ 1361 QUEUEGRP *sv_queue; /* pointer to queue */ 1362 } s_value; 1363 }; 1364 1365 typedef struct symtab STAB; 1366 1367 /* symbol types */ 1368 #define ST_UNDEF 0 /* undefined type */ 1369 #define ST_CLASS 1 /* class map */ 1370 #define ST_ADDRESS 2 /* an address in parsed format */ 1371 #define ST_MAILER 3 /* a mailer header */ 1372 #define ST_ALIAS 4 /* an alias */ 1373 #define ST_MAPCLASS 5 /* mapping function class */ 1374 #define ST_MAP 6 /* mapping function */ 1375 #define ST_HOSTSIG 7 /* host signature */ 1376 #define ST_NAMECANON 8 /* cached canonical name */ 1377 #define ST_MACRO 9 /* macro name to id mapping */ 1378 #define ST_RULESET 10 /* ruleset index */ 1379 #define ST_SERVICE 11 /* service switch entry */ 1380 #define ST_HEADER 12 /* special header flags */ 1381 #if LDAPMAP 1382 # define ST_LMAP 13 /* List head of maps for LDAP connection */ 1383 #endif /* LDAPMAP */ 1384 #if MILTER 1385 # define ST_MILTER 14 /* milter filter */ 1386 #endif /* MILTER */ 1387 #define ST_QUEUE 15 /* a queue entry */ 1388 1389 /* This entry must be last */ 1390 #define ST_MCI 16 /* mailer connection info (offset) */ 1391 1392 #define s_class s_value.sv_class 1393 #define s_address s_value.sv_addr 1394 #define s_mailer s_value.sv_mailer 1395 #define s_alias s_value.sv_alias 1396 #define s_mci s_value.sv_mci 1397 #define s_mapclass s_value.sv_mapclass 1398 #define s_hostsig s_value.sv_hostsig 1399 #define s_map s_value.sv_map 1400 #define s_namecanon s_value.sv_namecanon 1401 #define s_macro s_value.sv_macro 1402 #define s_ruleset s_value.sv_ruleset 1403 #define s_service s_value.sv_service 1404 #define s_header s_value.sv_header 1405 #if LDAPMAP 1406 # define s_lmap s_value.sv_lmap 1407 #endif /* LDAPMAP */ 1408 #if MILTER 1409 # define s_milter s_value.sv_milter 1410 #endif /* MILTER */ 1411 #define s_quegrp s_value.sv_queue 1412 1413 /* opcodes to stab */ 1414 #define ST_FIND 0 /* find entry */ 1415 #define ST_ENTER 1 /* enter if not there */ 1416 1417 /* functions */ 1418 extern STAB *stab __P((char *, int, int)); 1419 extern void stabapply __P((void (*)(STAB *, int), int)); 1420 1421 /* 1422 ** Operation, send, error, and MIME modes 1423 ** 1424 ** The operation mode describes the basic operation of sendmail. 1425 ** This can be set from the command line, and is "send mail" by 1426 ** default. 1427 ** 1428 ** The send mode tells how to send mail. It can be set in the 1429 ** configuration file. Its setting determines how quickly the 1430 ** mail will be delivered versus the load on your system. If the 1431 ** -v (verbose) flag is given, it will be forced to SM_DELIVER 1432 ** mode. 1433 ** 1434 ** The error mode tells how to return errors. 1435 */ 1436 1437 #define MD_DELIVER 'm' /* be a mail sender */ 1438 #define MD_SMTP 's' /* run SMTP on standard input */ 1439 #define MD_ARPAFTP 'a' /* obsolete ARPANET mode (Grey Book) */ 1440 #define MD_DAEMON 'd' /* run as a daemon */ 1441 #define MD_FGDAEMON 'D' /* run daemon in foreground */ 1442 #define MD_VERIFY 'v' /* verify: don't collect or deliver */ 1443 #define MD_TEST 't' /* test mode: resolve addrs only */ 1444 #define MD_INITALIAS 'i' /* initialize alias database */ 1445 #define MD_PRINT 'p' /* print the queue */ 1446 #define MD_PRINTNQE 'P' /* print number of entries in queue */ 1447 #define MD_FREEZE 'z' /* freeze the configuration file */ 1448 #define MD_HOSTSTAT 'h' /* print persistent host stat info */ 1449 #define MD_PURGESTAT 'H' /* purge persistent host stat info */ 1450 #define MD_QUEUERUN 'q' /* queue run */ 1451 1452 /* Note: see also include/sendmail/pathnames.h: GET_CLIENT_CF */ 1453 1454 /* values for e_sendmode -- send modes */ 1455 #define SM_DELIVER 'i' /* interactive delivery */ 1456 #define SM_FORK 'b' /* deliver in background */ 1457 #define SM_QUEUE 'q' /* queue, don't deliver */ 1458 #define SM_DEFER 'd' /* defer map lookups as well as queue */ 1459 #define SM_VERIFY 'v' /* verify only (used internally) */ 1460 1461 #define WILL_BE_QUEUED(m) ((m) == SM_QUEUE || (m) == SM_DEFER) 1462 1463 /* used only as a parameter to sendall */ 1464 #define SM_DEFAULT '\0' /* unspecified, use SendMode */ 1465 1466 /* functions */ 1467 extern void set_delivery_mode __P((int, ENVELOPE *)); 1468 1469 /* values for e_errormode -- error handling modes */ 1470 #define EM_PRINT 'p' /* print errors */ 1471 #define EM_MAIL 'm' /* mail back errors */ 1472 #define EM_WRITE 'w' /* write back errors */ 1473 #define EM_BERKNET 'e' /* special berknet processing */ 1474 #define EM_QUIET 'q' /* don't print messages (stat only) */ 1475 1476 1477 /* bit values for MimeMode */ 1478 #define MM_CVTMIME 0x0001 /* convert 8 to 7 bit MIME */ 1479 #define MM_PASS8BIT 0x0002 /* just send 8 bit data blind */ 1480 #define MM_MIME8BIT 0x0004 /* convert 8-bit data to MIME */ 1481 1482 1483 /* how to handle messages without any recipient addresses */ 1484 #define NRA_NO_ACTION 0 /* just leave it as is */ 1485 #define NRA_ADD_TO 1 /* add To: header */ 1486 #define NRA_ADD_APPARENTLY_TO 2 /* add Apparently-To: header */ 1487 #define NRA_ADD_BCC 3 /* add empty Bcc: header */ 1488 #define NRA_ADD_TO_UNDISCLOSED 4 /* add To: undisclosed:; header */ 1489 1490 1491 /* flags to putxline */ 1492 #define PXLF_NOTHINGSPECIAL 0 /* no special mapping */ 1493 #define PXLF_MAPFROM 0x0001 /* map From_ to >From_ */ 1494 #define PXLF_STRIP8BIT 0x0002 /* strip 8th bit */ 1495 #define PXLF_HEADER 0x0004 /* map newlines in headers */ 1496 1497 /* 1498 ** Privacy flags 1499 ** These are bit values for the PrivacyFlags word. 1500 */ 1501 1502 #define PRIV_PUBLIC 0 /* what have I got to hide? */ 1503 #define PRIV_NEEDMAILHELO 0x00000001 /* insist on HELO for MAIL */ 1504 #define PRIV_NEEDEXPNHELO 0x00000002 /* insist on HELO for EXPN */ 1505 #define PRIV_NEEDVRFYHELO 0x00000004 /* insist on HELO for VRFY */ 1506 #define PRIV_NOEXPN 0x00000008 /* disallow EXPN command */ 1507 #define PRIV_NOVRFY 0x00000010 /* disallow VRFY command */ 1508 #define PRIV_AUTHWARNINGS 0x00000020 /* flag possible auth probs */ 1509 #define PRIV_NOVERB 0x00000040 /* disallow VERB command */ 1510 #define PRIV_RESTRICTMAILQ 0x00010000 /* restrict mailq command */ 1511 #define PRIV_RESTRICTQRUN 0x00020000 /* restrict queue run */ 1512 #define PRIV_RESTRICTEXPAND 0x00040000 /* restrict alias/forward expansion */ 1513 #define PRIV_NOETRN 0x00080000 /* disallow ETRN command */ 1514 #define PRIV_NOBODYRETN 0x00100000 /* do not return bodies on bounces */ 1515 #define PRIV_NORECEIPTS 0x00200000 /* disallow return receipts */ 1516 1517 /* don't give no info, anyway, anyhow */ 1518 #define PRIV_GOAWAY 0x0000ffff 1519 1520 /* struct defining such things */ 1521 struct prival 1522 { 1523 char *pv_name; /* name of privacy flag */ 1524 unsigned long pv_flag; /* numeric level */ 1525 }; 1526 1527 EXTERN unsigned long PrivacyFlags; /* privacy flags */ 1528 1529 1530 /* 1531 ** Flags passed to remotename, parseaddr, allocaddr, and buildaddr. 1532 */ 1533 1534 #define RF_SENDERADDR 0x001 /* this is a sender address */ 1535 #define RF_HEADERADDR 0x002 /* this is a header address */ 1536 #define RF_CANONICAL 0x004 /* strip comment information */ 1537 #define RF_ADDDOMAIN 0x008 /* OK to do domain extension */ 1538 #define RF_COPYPARSE 0x010 /* copy parsed user & host */ 1539 #define RF_COPYPADDR 0x020 /* copy print address */ 1540 #define RF_COPYALL (RF_COPYPARSE|RF_COPYPADDR) 1541 #define RF_COPYNONE 0 1542 1543 1544 /* 1545 ** Flags passed to mime8to7 and putheader. 1546 */ 1547 1548 #define M87F_OUTER 0 /* outer context */ 1549 #define M87F_NO8BIT 0x0001 /* can't have 8-bit in this section */ 1550 #define M87F_DIGEST 0x0002 /* processing multipart/digest */ 1551 #define M87F_NO8TO7 0x0004 /* don't do 8->7 bit conversions */ 1552 1553 /* functions */ 1554 extern void mime7to8 __P((MCI *, HDR *, ENVELOPE *)); 1555 extern int mime8to7 __P((MCI *, HDR *, ENVELOPE *, char **, int)); 1556 1557 /* 1558 ** Flags passed to returntosender. 1559 */ 1560 1561 #define RTSF_NO_BODY 0 /* send headers only */ 1562 #define RTSF_SEND_BODY 0x0001 /* include body of message in return */ 1563 #define RTSF_PM_BOUNCE 0x0002 /* this is a postmaster bounce */ 1564 1565 /* functions */ 1566 extern int returntosender __P((char *, ADDRESS *, int, ENVELOPE *)); 1567 1568 /* 1569 ** Regular UNIX sockaddrs are too small to handle ISO addresses, so 1570 ** we are forced to declare a supertype here. 1571 */ 1572 1573 #if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 1574 union bigsockaddr 1575 { 1576 struct sockaddr sa; /* general version */ 1577 # if NETUNIX 1578 struct sockaddr_un sunix; /* UNIX family */ 1579 # endif /* NETUNIX */ 1580 # if NETINET 1581 struct sockaddr_in sin; /* INET family */ 1582 # endif /* NETINET */ 1583 # if NETINET6 1584 struct sockaddr_in6 sin6; /* INET/IPv6 */ 1585 # endif /* NETINET6 */ 1586 # if NETISO 1587 struct sockaddr_iso siso; /* ISO family */ 1588 # endif /* NETISO */ 1589 # if NETNS 1590 struct sockaddr_ns sns; /* XNS family */ 1591 # endif /* NETNS */ 1592 # if NETX25 1593 struct sockaddr_x25 sx25; /* X.25 family */ 1594 # endif /* NETX25 */ 1595 }; 1596 1597 # define SOCKADDR union bigsockaddr 1598 1599 /* functions */ 1600 extern char *anynet_ntoa __P((SOCKADDR *)); 1601 # if NETINET6 1602 extern char *anynet_ntop __P((struct in6_addr *, char *, size_t)); 1603 extern int anynet_pton __P((int, const char *, void *)); 1604 # endif /* NETINET6 */ 1605 extern char *hostnamebyanyaddr __P((SOCKADDR *)); 1606 extern char *validate_connection __P((SOCKADDR *, char *, ENVELOPE *)); 1607 1608 #endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */ 1609 1610 #if MILTER 1611 /* 1612 ** Mail Filters (milter) 1613 */ 1614 1615 # define SMFTO_WRITE 0 /* Timeout for sending information */ 1616 # define SMFTO_READ 1 /* Timeout waiting for a response */ 1617 # define SMFTO_EOM 2 /* Timeout for ACK/NAK to EOM */ 1618 # define SMFTO_CONNECT 3 /* Timeout for connect() */ 1619 1620 # define SMFTO_NUM_TO 4 /* Total number of timeouts */ 1621 1622 struct milter 1623 { 1624 char *mf_name; /* filter name */ 1625 BITMAP256 mf_flags; /* MTA flags */ 1626 unsigned long mf_fvers; /* filter version */ 1627 unsigned long mf_fflags; /* filter flags */ 1628 unsigned long mf_pflags; /* protocol flags */ 1629 char *mf_conn; /* connection info */ 1630 int mf_sock; /* connected socket */ 1631 char mf_state; /* state of filter */ 1632 time_t mf_timeout[SMFTO_NUM_TO]; /* timeouts */ 1633 }; 1634 1635 /* MTA flags */ 1636 # define SMF_REJECT 'R' /* Reject connection on filter fail */ 1637 # define SMF_TEMPFAIL 'T' /* tempfail connection on failure */ 1638 1639 /* states */ 1640 # define SMFS_CLOSED 'C' /* closed for all further actions */ 1641 # define SMFS_OPEN 'O' /* connected to remote milter filter */ 1642 # define SMFS_INMSG 'M' /* currently servicing a message */ 1643 # define SMFS_DONE 'D' /* done with current message */ 1644 # define SMFS_CLOSABLE 'Q' /* done with current connection */ 1645 # define SMFS_ERROR 'E' /* error state */ 1646 # define SMFS_READY 'R' /* ready for action */ 1647 1648 EXTERN struct milter *InputFilters[MAXFILTERS]; 1649 EXTERN char *InputFilterList; 1650 EXTERN int MilterLogLevel; 1651 1652 # if _FFR_MILTER_PERDAEMON 1653 /* functions */ 1654 extern void setup_daemon_milters __P(()); 1655 # endif /* _FFR_MILTER_PERDAEMON */ 1656 #endif /* MILTER */ 1657 1658 /* 1659 ** 32-bit type used by milter 1660 ** (needed by libmilter even if MILTER isn't defined) 1661 */ 1662 1663 typedef SM_INT32 mi_int32; 1664 1665 /* 1666 ** Vendor codes 1667 ** 1668 ** Vendors can customize sendmail to add special behaviour, 1669 ** generally for back compatibility. Ideally, this should 1670 ** be set up in the .cf file using the "V" command. However, 1671 ** it's quite reasonable for some vendors to want the default 1672 ** be their old version; this can be set using 1673 ** -DVENDOR_DEFAULT=VENDOR_xxx 1674 ** in the Makefile. 1675 ** 1676 ** Vendors should apply to sendmail@sendmail.org for 1677 ** unique vendor codes. 1678 */ 1679 1680 #define VENDOR_BERKELEY 1 /* Berkeley-native configuration file */ 1681 #define VENDOR_SUN 2 /* Sun-native configuration file */ 1682 #define VENDOR_HP 3 /* Hewlett-Packard specific config syntax */ 1683 #define VENDOR_IBM 4 /* IBM specific config syntax */ 1684 #define VENDOR_SENDMAIL 5 /* Sendmail, Inc. specific config syntax */ 1685 #define VENDOR_DEC 6 /* Compaq, DEC, Digital */ 1686 1687 /* prototypes for vendor-specific hook routines */ 1688 extern void vendor_daemon_setup __P((ENVELOPE *)); 1689 extern void vendor_set_uid __P((UID_T)); 1690 1691 1692 /* 1693 ** Terminal escape codes. 1694 ** 1695 ** To make debugging output clearer. 1696 */ 1697 1698 struct termescape 1699 { 1700 char *te_rv_on; /* turn reverse-video on */ 1701 char *te_rv_off; /* turn reverse-video off */ 1702 }; 1703 1704 /* 1705 ** Additional definitions 1706 */ 1707 1708 /* 1709 ** d_flags, see daemon.c 1710 ** general rule: lower case: required, upper case: No 1711 */ 1712 1713 #define D_AUTHREQ 'a' /* authentication required */ 1714 #define D_BINDIF 'b' /* use if_addr for outgoing connection */ 1715 #define D_CANONREQ 'c' /* canonification required (cf) */ 1716 #define D_IFNHELO 'h' /* use if name for HELO */ 1717 #define D_FQMAIL 'f' /* fq sender address required (cf) */ 1718 #define D_FQRCPT 'r' /* fq recipient address required (cf) */ 1719 #if _FFR_SMTP_SSL 1720 # define D_SMTPS 's' /* SMTP over SSL (smtps) */ 1721 #endif /* _FFR_SMTP_SSL */ 1722 #define D_UNQUALOK 'u' /* unqualified address is ok (cf) */ 1723 #define D_NOAUTH 'A' /* no AUTH */ 1724 #define D_NOCANON 'C' /* no canonification (cf) */ 1725 #define D_NOETRN 'E' /* no ETRN (MSA) */ 1726 #define D_NOTLS 'S' /* don't use STARTTLS */ 1727 #define D_ETRNONLY ((char)0x01) /* allow only ETRN (disk low) */ 1728 #define D_OPTIONAL 'O' /* optional socket */ 1729 #define D_DISABLE ((char)0x02) /* optional socket disabled */ 1730 #define D_ISSET ((char)0x03) /* this client struct is set */ 1731 1732 #if STARTTLS 1733 /* 1734 ** TLS 1735 */ 1736 1737 /* what to do in the TLS initialization */ 1738 #define TLS_I_NONE 0x00000000 /* no requirements... */ 1739 #define TLS_I_CERT_EX 0x00000001 /* CERT must exist */ 1740 #define TLS_I_CERT_UNR 0x00000002 /* CERT must be g/o unreadable */ 1741 #define TLS_I_KEY_EX 0x00000004 /* KEY must exist */ 1742 #define TLS_I_KEY_UNR 0x00000008 /* KEY must be g/o unreadable */ 1743 #define TLS_I_CERTP_EX 0x00000010 /* CA CERT PATH must exist */ 1744 #define TLS_I_CERTP_UNR 0x00000020 /* CA CERT PATH must be g/o unreadable */ 1745 #define TLS_I_CERTF_EX 0x00000040 /* CA CERT FILE must exist */ 1746 #define TLS_I_CERTF_UNR 0x00000080 /* CA CERT FILE must be g/o unreadable */ 1747 #define TLS_I_RSA_TMP 0x00000100 /* RSA TMP must be generated */ 1748 #define TLS_I_USE_KEY 0x00000200 /* private key must usable */ 1749 #define TLS_I_USE_CERT 0x00000400 /* certificate must be usable */ 1750 #define TLS_I_VRFY_PATH 0x00000800 /* load verify path must succeed */ 1751 #define TLS_I_VRFY_LOC 0x00001000 /* load verify default must succeed */ 1752 #define TLS_I_CACHE 0x00002000 /* require cache */ 1753 #define TLS_I_TRY_DH 0x00004000 /* try DH certificate */ 1754 #define TLS_I_REQ_DH 0x00008000 /* require DH certificate */ 1755 #define TLS_I_DHPAR_EX 0x00010000 /* require DH parameters */ 1756 #define TLS_I_DHPAR_UNR 0x00020000 /* DH param. must be g/o unreadable */ 1757 #define TLS_I_DH512 0x00040000 /* generate 512bit DH param */ 1758 #define TLS_I_DH1024 0x00080000 /* generate 1024bit DH param */ 1759 #define TLS_I_DH2048 0x00100000 /* generate 2048bit DH param */ 1760 #define TLS_I_NO_VRFY 0x00200000 /* do not require authentication */ 1761 #define TLS_I_KEY_OUNR 0x00400000 /* KEY must be o unreadable */ 1762 1763 /* require server cert */ 1764 #define TLS_I_SRV_CERT (TLS_I_CERT_EX | TLS_I_KEY_EX | \ 1765 TLS_I_KEY_UNR | TLS_I_KEY_OUNR | \ 1766 TLS_I_CERTP_EX | TLS_I_CERTF_EX | \ 1767 TLS_I_USE_KEY | TLS_I_USE_CERT) 1768 1769 /* server requirements */ 1770 #define TLS_I_SRV (TLS_I_SRV_CERT | TLS_I_RSA_TMP | TLS_I_VRFY_PATH | \ 1771 TLS_I_VRFY_LOC | TLS_I_TRY_DH | TLS_I_DH512) 1772 1773 /* client requirements */ 1774 #define TLS_I_CLT (TLS_I_KEY_UNR | TLS_I_KEY_OUNR) 1775 1776 #define TLS_AUTH_OK 0 1777 #define TLS_AUTH_NO 1 1778 #define TLS_AUTH_FAIL (-1) 1779 1780 /* functions */ 1781 extern bool init_tls_library __P((void)); 1782 extern bool inittls __P((SSL_CTX **, unsigned long, bool, char *, char *, char *, char *, char *)); 1783 extern bool initclttls __P((bool)); 1784 extern void setclttls __P((bool)); 1785 extern bool initsrvtls __P((bool)); 1786 extern int tls_get_info __P((SSL *, bool, char *, MACROS_T *, bool)); 1787 extern int endtls __P((SSL *, char *)); 1788 extern void tlslogerr __P((char *)); 1789 1790 1791 EXTERN char *CACERTpath; /* path to CA certificates (dir. with hashes) */ 1792 EXTERN char *CACERTfile; /* file with CA certificate */ 1793 EXTERN char *CltCERTfile; /* file with client certificate */ 1794 EXTERN char *Cltkeyfile; /* file with client private key */ 1795 # if _FFR_TLS_1 1796 EXTERN char *CipherList; /* list of ciphers */ 1797 EXTERN char *DHParams5; /* file with DH parameters (512) */ 1798 # endif /* _FFR_TLS_1 */ 1799 EXTERN char *DHParams; /* file with DH parameters */ 1800 EXTERN char *RandFile; /* source of random data */ 1801 EXTERN char *SrvCERTfile; /* file with server certificate */ 1802 EXTERN char *Srvkeyfile; /* file with server private key */ 1803 EXTERN unsigned long TLS_Srv_Opts; /* TLS server options */ 1804 #endif /* STARTTLS */ 1805 1806 /* 1807 ** Queue related items 1808 */ 1809 1810 /* queue file names */ 1811 #if _FFR_QUARANTINE 1812 # define ANYQFL_LETTER '?' 1813 # define QUARQF_LETTER 'h' 1814 #else /* _FFR_QUARANTINE */ 1815 /* Before quarantining, ANYQF == NORMQF */ 1816 # define ANYQFL_LETTER 'q' 1817 #endif /* _FFR_QUARANTINE */ 1818 #define DATAFL_LETTER 'd' 1819 #define XSCRPT_LETTER 'x' 1820 #define NORMQF_LETTER 'q' 1821 #define NEWQFL_LETTER 't' 1822 1823 # define TEMPQF_LETTER 'T' 1824 # define LOSEQF_LETTER 'Q' 1825 1826 /* queue sort order */ 1827 #define QSO_BYPRIORITY 0 /* sort by message priority */ 1828 #define QSO_BYHOST 1 /* sort by first host name */ 1829 #define QSO_BYTIME 2 /* sort by submission time */ 1830 #define QSO_BYFILENAME 3 /* sort by file name only */ 1831 #define QSO_RANDOM 4 /* sort in random order */ 1832 #define QSO_BYMODTIME 5 /* sort by modification time */ 1833 #if _FFR_RHS 1834 # define QSO_BYSHUFFLE 6 /* sort by shuffled host name */ 1835 #endif /* _FFR_RHS */ 1836 1837 #if _FFR_QUEUEDELAY 1838 # define QD_LINEAR 0 /* linear (old) delay alg */ 1839 # define QD_EXP 1 /* exponential delay alg */ 1840 #endif /* _FFR_QUEUEDELAY */ 1841 1842 #define NOQGRP (-1) /* no queue group (yet) */ 1843 #define ENVQGRP (-2) /* use queue group of envelope */ 1844 #define NOAQGRP (-3) /* no queue group in addr (yet) */ 1845 #define ISVALIDQGRP(x) ((x) >= 0) /* valid queue group? */ 1846 #define NOQDIR (-1) /* no queue directory (yet) */ 1847 #define ENVQDIR (-2) /* use queue directory of envelope */ 1848 #define NOAQDIR (-3) /* no queue directory in addr (yet) */ 1849 #define ISVALIDQDIR(x) ((x) >= 0) /* valid queue directory? */ 1850 #define RS_QUEUEGROUP "queuegroup" /* ruleset for queue group selection */ 1851 1852 #define NOW ((time_t) (-1)) /* queue return: now */ 1853 1854 /* SuperSafe values */ 1855 #define SAFE_NO 0 /* no fsync(): don't use... */ 1856 #define SAFE_INTERACTIVE 1 /* limit fsync() in -odi */ 1857 #define SAFE_REALLY 2 /* always fsync() */ 1858 1859 #if _FFR_QUARANTINE 1860 /* QueueMode bits */ 1861 # define QM_NORMAL ' ' 1862 # define QM_QUARANTINE 'Q' 1863 # define QM_LOST 'L' 1864 #endif /* _FFR_QUARANTINE */ 1865 1866 /* Queue Run Limitations */ 1867 struct queue_char 1868 { 1869 char *queue_match; /* string to match */ 1870 bool queue_negate; /* or not match, if set */ 1871 struct queue_char *queue_next; 1872 }; 1873 1874 typedef struct queue_char QUEUE_CHAR; 1875 1876 EXTERN int volatile CurRunners; /* current number of runner children */ 1877 EXTERN int MaxQueueRun; /* maximum number of jobs in one queue run */ 1878 EXTERN int MaxQueueChildren; /* max # of forked queue children */ 1879 EXTERN int MaxRunnersPerQueue; /* max # proc's active in queue group */ 1880 EXTERN int NiceQueueRun; /* nice queue runs to this value */ 1881 EXTERN int NumQueue; /* number of queue groups */ 1882 EXTERN int QueueFileMode; /* mode on files in mail queue */ 1883 #if _FFR_QUARANTINE 1884 EXTERN int QueueMode; /* which queue items to act upon */ 1885 #endif /* _FFR_QUARANTINE */ 1886 EXTERN int QueueSortOrder; /* queue sorting order algorithm */ 1887 EXTERN time_t MinQueueAge; /* min delivery interval */ 1888 EXTERN time_t QueueIntvl; /* intervals between running the queue */ 1889 EXTERN char *QueueDir; /* location of queue directory */ 1890 #if _FFR_QUEUEDELAY 1891 EXTERN int QueueAlg; /* algorithm for queue delays */ 1892 EXTERN time_t QueueInitDelay; /* initial queue delay */ 1893 EXTERN time_t QueueMaxDelay; /* maximum queue delay */ 1894 #endif /* _FFR_QUEUEDELAY */ 1895 EXTERN QUEUE_CHAR *QueueLimitId; /* limit queue run to id */ 1896 #if _FFR_QUARANTINE 1897 EXTERN QUEUE_CHAR *QueueLimitQuarantine; /* limit queue run to quarantine reason */ 1898 #endif /* _FFR_QUARANTINE */ 1899 EXTERN QUEUE_CHAR *QueueLimitRecipient; /* limit queue run to rcpt */ 1900 EXTERN QUEUE_CHAR *QueueLimitSender; /* limit queue run to sender */ 1901 EXTERN QUEUEGRP *Queue[MAXQUEUEGROUPS + 1]; /* queue groups */ 1902 1903 /* functions */ 1904 extern void assign_queueid __P((ENVELOPE *)); 1905 extern ADDRESS *copyqueue __P((ADDRESS *, SM_RPOOL_T *)); 1906 extern void cleanup_queues __P((void)); 1907 extern bool doqueuerun __P((void)); 1908 extern void initsys __P((ENVELOPE *)); 1909 extern void loseqfile __P((ENVELOPE *, char *)); 1910 extern int name2qid __P((char *)); 1911 extern char *qid_printname __P((ENVELOPE *)); 1912 extern char *qid_printqueue __P((int, int)); 1913 #if _FFR_QUARANTINE 1914 extern void quarantine_queue __P((char *, int)); 1915 #endif /* _FFR_QUARANTINE */ 1916 extern char *queuename __P((ENVELOPE *, int)); 1917 extern void queueup __P((ENVELOPE *, bool, bool)); 1918 extern bool runqueue __P((bool, bool, bool, bool)); 1919 extern int run_work_group __P((int, bool, bool, bool, bool)); 1920 extern void set_def_queueval __P((QUEUEGRP *, bool)); 1921 extern void setup_queues __P((bool)); 1922 extern bool setnewqueue __P((ENVELOPE *)); 1923 extern bool shouldqueue __P((long, time_t)); 1924 extern void sync_queue_time __P((void)); 1925 extern int print_single_queue __P((int, int)); 1926 #if REQUIRES_DIR_FSYNC 1927 # define SYNC_DIR(path, panic) sync_dir(path, panic) 1928 extern void sync_dir __P((char *, bool)); 1929 #else /* REQUIRES_DIR_FSYNC */ 1930 # define SYNC_DIR(path, panic) ((void) 0) 1931 #endif /* REQUIRES_DIR_FSYNC */ 1932 1933 /* 1934 ** Timeouts 1935 ** 1936 ** Indicated values are the MINIMUM per RFC 1123 section 5.3.2. 1937 */ 1938 1939 EXTERN struct 1940 { 1941 /* RFC 1123-specified timeouts [minimum value] */ 1942 time_t to_initial; /* initial greeting timeout [5m] */ 1943 time_t to_mail; /* MAIL command [5m] */ 1944 time_t to_rcpt; /* RCPT command [5m] */ 1945 time_t to_datainit; /* DATA initiation [2m] */ 1946 time_t to_datablock; /* DATA block [3m] */ 1947 time_t to_datafinal; /* DATA completion [10m] */ 1948 time_t to_nextcommand; /* next command [5m] */ 1949 /* following timeouts are not mentioned in RFC 1123 */ 1950 time_t to_iconnect; /* initial connection timeout (first try) */ 1951 time_t to_connect; /* initial connection timeout (later tries) */ 1952 time_t to_aconnect; /* all connections timeout (MX and A records) */ 1953 time_t to_rset; /* RSET command */ 1954 time_t to_helo; /* HELO command */ 1955 time_t to_quit; /* QUIT command */ 1956 time_t to_miscshort; /* misc short commands (NOOP, VERB, etc) */ 1957 time_t to_ident; /* IDENT protocol requests */ 1958 time_t to_fileopen; /* opening :include: and .forward files */ 1959 time_t to_control; /* process a control socket command */ 1960 time_t to_lhlo; /* LMTP: LHLO command */ 1961 #if SASL 1962 time_t to_auth; /* AUTH dialogue [10m] */ 1963 #endif /* SASL */ 1964 #if STARTTLS 1965 time_t to_starttls; /* STARTTLS dialogue [10m] */ 1966 #endif /* STARTTLS */ 1967 /* following are per message */ 1968 time_t to_q_return[MAXTOCLASS]; /* queue return timeouts */ 1969 time_t to_q_warning[MAXTOCLASS]; /* queue warning timeouts */ 1970 time_t res_retrans[MAXRESTOTYPES]; /* resolver retransmit */ 1971 int res_retry[MAXRESTOTYPES]; /* resolver retry */ 1972 } TimeOuts; 1973 1974 /* timeout classes for return and warning timeouts */ 1975 #define TOC_NORMAL 0 /* normal delivery */ 1976 #define TOC_URGENT 1 /* urgent delivery */ 1977 #define TOC_NONURGENT 2 /* non-urgent delivery */ 1978 1979 /* resolver timeout specifiers */ 1980 #define RES_TO_FIRST 0 /* first attempt */ 1981 #define RES_TO_NORMAL 1 /* subsequent attempts */ 1982 #define RES_TO_DEFAULT 2 /* default value */ 1983 1984 /* functions */ 1985 extern void inittimeouts __P((char *, bool)); 1986 1987 /* 1988 ** Interface probing 1989 */ 1990 1991 #define DPI_PROBENONE 0 /* Don't probe any interfaces */ 1992 #define DPI_PROBEALL 1 /* Probe all interfaces */ 1993 #define DPI_SKIPLOOPBACK 2 /* Don't probe loopback interfaces */ 1994 1995 /* 1996 ** Trace information 1997 */ 1998 1999 /* macros for debugging flags */ 2000 #define tTd(flag, level) (tTdvect[flag] >= (unsigned char)level) 2001 #define tTdlevel(flag) (tTdvect[flag]) 2002 2003 /* variables */ 2004 extern unsigned char tTdvect[100]; /* trace vector */ 2005 2006 /* 2007 ** Miscellaneous information. 2008 */ 2009 2010 /* 2011 ** The "no queue id" queue id for sm_syslog 2012 */ 2013 2014 #define NOQID "*~*" 2015 2016 /* use id or NOQID (to avoid NOQUEUE in logfile) */ 2017 #define E_ID(id) ((id) == NULL ? NOQID : (id)) 2018 2019 #define CURHOSTNAME (CurHostName == NULL ? "local" : CurHostName) 2020 2021 /* 2022 ** Some in-line functions 2023 */ 2024 2025 /* set exit status */ 2026 #define setstat(s) { \ 2027 if (ExitStat == EX_OK || ExitStat == EX_TEMPFAIL) \ 2028 ExitStat = s; \ 2029 } 2030 2031 /* make a copy of a string */ 2032 #define newstr(s) strcpy(xalloc(strlen(s) + 1), s) 2033 2034 #define STRUCTCOPY(s, d) d = s 2035 2036 /* free a pointer if it isn't NULL and set it to NULL */ 2037 #define SM_FREE_CLR(p) \ 2038 if ((p) != NULL) \ 2039 { \ 2040 sm_free(p); \ 2041 (p) = NULL; \ 2042 } \ 2043 else 2044 2045 /* 2046 ** Update a permanent string variable with a new value. 2047 ** The old value is freed, the new value is strdup'ed. 2048 ** 2049 ** We use sm_pstrdup_x to duplicate the string because it raises 2050 ** an exception on error, and because it allocates "permanent storage" 2051 ** which is not expected to be freed before process exit. 2052 ** The latter is important for memory leak analysis. 2053 ** 2054 ** If an exception occurs while strdup'ing the new value, 2055 ** then the variable remains set to the old value. 2056 ** That's why the strdup must occur before we free the old value. 2057 ** 2058 ** The macro uses a do loop so that this idiom will work: 2059 ** if (...) 2060 ** PSTRSET(var, val1); 2061 ** else 2062 ** PSTRSET(var, val2); 2063 */ 2064 #define PSTRSET(var, val) \ 2065 do \ 2066 { \ 2067 char *_newval = sm_pstrdup_x(val); \ 2068 if (var != NULL) \ 2069 sm_free(var); \ 2070 var = _newval; \ 2071 } while (0) 2072 2073 /* 2074 ** Global variables. 2075 */ 2076 2077 EXTERN bool AllowBogusHELO; /* allow syntax errors on HELO command */ 2078 EXTERN bool CheckAliases; /* parse addresses during newaliases */ 2079 EXTERN bool ColonOkInAddr; /* single colon legal in address */ 2080 #if !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) 2081 EXTERN bool ConfigFileRead; /* configuration file has been read */ 2082 #endif /* !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) */ 2083 EXTERN bool volatile DataProgress; /* have we sent anything since last check */ 2084 EXTERN bool DisConnected; /* running with OutChannel redirect to transcript file */ 2085 EXTERN bool DontExpandCnames; /* do not $[...$] expand CNAMEs */ 2086 EXTERN bool DontInitGroups; /* avoid initgroups() because of NIS cost */ 2087 EXTERN bool DontLockReadFiles; /* don't read lock support files */ 2088 EXTERN bool DontPruneRoutes; /* don't prune source routes */ 2089 EXTERN bool ForkQueueRuns; /* fork for each job when running the queue */ 2090 EXTERN bool FromFlag; /* if set, "From" person is explicit */ 2091 EXTERN bool GrabTo; /* if set, get recipients from msg */ 2092 EXTERN bool HasEightBits; /* has at least one eight bit input byte */ 2093 EXTERN bool HasWildcardMX; /* don't use MX records when canonifying */ 2094 EXTERN bool HoldErrs; /* only output errors to transcript */ 2095 EXTERN bool IgnoreHostStatus; /* ignore long term host status files */ 2096 EXTERN bool IgnrDot; /* don't let dot end messages */ 2097 EXTERN bool LogUsrErrs; /* syslog user errors (e.g., SMTP RCPT cmd) */ 2098 EXTERN bool MatchGecos; /* look for user names in gecos field */ 2099 EXTERN bool MeToo; /* send to the sender also */ 2100 EXTERN bool NoAlias; /* suppress aliasing */ 2101 EXTERN bool NoConnect; /* don't connect to non-local mailers */ 2102 EXTERN bool OnlyOneError; /* .... or only want to give one SMTP reply */ 2103 EXTERN bool QuickAbort; /* .... but only if we want a quick abort */ 2104 EXTERN bool ResNoAliases; /* don't use $HOSTALIASES */ 2105 EXTERN bool volatile RestartWorkGroup; /* daemon needs to restart some work groups */ 2106 EXTERN bool RrtImpliesDsn; /* turn Return-Receipt-To: into DSN */ 2107 EXTERN bool SaveFrom; /* save leading "From" lines */ 2108 EXTERN bool SendMIMEErrors; /* send error messages in MIME format */ 2109 EXTERN bool SevenBitInput; /* force 7-bit data on input */ 2110 EXTERN bool SingleLineFromHeader; /* force From: header to be one line */ 2111 EXTERN bool SingleThreadDelivery; /* single thread hosts on delivery */ 2112 #if _FFR_SOFT_BOUNCE 2113 EXTERN bool SoftBounce; /* replace 5xy by 4xy (for testing) */ 2114 #endif /* _FFR_SOFT_BOUNCE */ 2115 EXTERN bool volatile StopRequest; /* stop sending output */ 2116 EXTERN bool SuprErrs; /* set if we are suppressing errors */ 2117 EXTERN bool TryNullMXList; /* if we are the best MX, try host directly */ 2118 EXTERN bool UseMSP; /* mail submission: group writable queue ok? */ 2119 EXTERN bool WorkAroundBrokenAAAA; /* some nameservers return SERVFAIL on AAAA queries */ 2120 EXTERN bool UseErrorsTo; /* use Errors-To: header (back compat) */ 2121 EXTERN bool UseNameServer; /* using DNS -- interpret h_errno & MX RRs */ 2122 EXTERN char InetMode; /* default network for daemon mode */ 2123 EXTERN char OpMode; /* operation mode, see below */ 2124 EXTERN char SpaceSub; /* substitution for <lwsp> */ 2125 EXTERN int BadRcptThrottle; /* Throttle rejected RCPTs per SMTP message */ 2126 EXTERN int CheckpointInterval; /* queue file checkpoint interval */ 2127 EXTERN int ConfigLevel; /* config file level */ 2128 EXTERN int ConnRateThrottle; /* throttle for SMTP connection rate */ 2129 EXTERN int volatile CurChildren; /* current number of daemonic children */ 2130 EXTERN int CurrentLA; /* current load average */ 2131 EXTERN int DefaultNotify; /* default DSN notification flags */ 2132 EXTERN int DelayLA; /* load average to delay connections */ 2133 EXTERN int DontProbeInterfaces; /* don't probe interfaces for names */ 2134 EXTERN int Errors; /* set if errors (local to single pass) */ 2135 EXTERN int ExitStat; /* exit status code */ 2136 EXTERN int FastSplit; /* fast initial splitting of envelopes */ 2137 EXTERN int FileMode; /* mode on files */ 2138 EXTERN int LineNumber; /* line number in current input */ 2139 EXTERN int LogLevel; /* level of logging to perform */ 2140 EXTERN int MaxAliasRecursion; /* maximum depth of alias recursion */ 2141 EXTERN int MaxChildren; /* maximum number of daemonic children */ 2142 EXTERN int MaxForwardEntries; /* maximum number of forward entries */ 2143 EXTERN int MaxHeadersLength; /* max length of headers */ 2144 EXTERN int MaxHopCount; /* max # of hops until bounce */ 2145 EXTERN int MaxMacroRecursion; /* maximum depth of macro recursion */ 2146 EXTERN int MaxMimeFieldLength; /* maximum MIME field length */ 2147 EXTERN int MaxMimeHeaderLength; /* maximum MIME header length */ 2148 2149 EXTERN int MaxRcptPerMsg; /* max recipients per SMTP message */ 2150 EXTERN int MaxRuleRecursion; /* maximum depth of ruleset recursion */ 2151 EXTERN int MimeMode; /* MIME processing mode */ 2152 EXTERN int NoRecipientAction; 2153 2154 #if SM_CONF_SHM 2155 EXTERN int Numfilesys; /* number of queue file systems */ 2156 EXTERN int *PNumFileSys; 2157 # define NumFileSys (*PNumFileSys) 2158 # else /* SM_CONF_SHM */ 2159 EXTERN int NumFileSys; /* number of queue file systems */ 2160 # endif /* SM_CONF_SHM */ 2161 2162 EXTERN int QueueLA; /* load average starting forced queueing */ 2163 EXTERN int RefuseLA; /* load average refusing connections */ 2164 EXTERN int SuperSafe; /* be extra careful, even if expensive */ 2165 EXTERN int VendorCode; /* vendor-specific operation enhancements */ 2166 EXTERN int Verbose; /* set if blow-by-blow desired */ 2167 EXTERN gid_t DefGid; /* default gid to run as */ 2168 EXTERN gid_t RealGid; /* real gid of caller */ 2169 EXTERN gid_t RunAsGid; /* GID to become for bulk of run */ 2170 EXTERN gid_t EffGid; /* effective gid */ 2171 #if SM_CONF_SHM 2172 EXTERN key_t ShmKey; /* shared memory key */ 2173 #endif /* SM_CONF_SHM */ 2174 EXTERN pid_t CurrentPid; /* current process id */ 2175 EXTERN pid_t DaemonPid; /* process id of daemon */ 2176 EXTERN uid_t DefUid; /* default uid to run as */ 2177 EXTERN uid_t RealUid; /* real uid of caller */ 2178 EXTERN uid_t RunAsUid; /* UID to become for bulk of run */ 2179 EXTERN uid_t TrustedUid; /* uid of trusted user for files and startup */ 2180 EXTERN size_t DataFileBufferSize; /* size of buf for in-core data file */ 2181 EXTERN time_t DeliverByMin; /* deliver by minimum time */ 2182 EXTERN time_t DialDelay; /* delay between dial-on-demand tries */ 2183 EXTERN time_t SafeAlias; /* interval to wait until @:@ in alias file */ 2184 EXTERN time_t ServiceCacheMaxAge; /* refresh interval for cache */ 2185 EXTERN size_t XscriptFileBufferSize; /* size of buf for in-core transcript file */ 2186 EXTERN MODE_T OldUmask; /* umask when sendmail starts up */ 2187 EXTERN long MaxMessageSize; /* advertised max size we will accept */ 2188 EXTERN long MinBlocksFree; /* min # of blocks free on queue fs */ 2189 EXTERN long QueueFactor; /* slope of queue function */ 2190 EXTERN long WkClassFact; /* multiplier for message class -> priority */ 2191 EXTERN long WkRecipFact; /* multiplier for # of recipients -> priority */ 2192 EXTERN long WkTimeFact; /* priority offset each time this job is run */ 2193 EXTERN char *ControlSocketName; /* control socket filename [control.c] */ 2194 EXTERN char *CurHostName; /* current host we are dealing with */ 2195 EXTERN char *DeadLetterDrop; /* path to dead letter office */ 2196 EXTERN char *DefUser; /* default user to run as (from DefUid) */ 2197 EXTERN char *DefaultCharSet; /* default character set for MIME */ 2198 EXTERN char *DoubleBounceAddr; /* where to send double bounces */ 2199 EXTERN char *ErrMsgFile; /* file to prepend to all error messages */ 2200 EXTERN char *FallBackMX; /* fall back MX host */ 2201 EXTERN char *FileName; /* name to print on error messages */ 2202 EXTERN char *ForwardPath; /* path to search for .forward files */ 2203 EXTERN char *HelpFile; /* location of SMTP help file */ 2204 EXTERN char *HostStatDir; /* location of host status information */ 2205 EXTERN char *HostsFile; /* path to /etc/hosts file */ 2206 extern char *Mbdb; /* mailbox database type */ 2207 EXTERN char *MustQuoteChars; /* quote these characters in phrases */ 2208 EXTERN char *MyHostName; /* name of this host for SMTP messages */ 2209 EXTERN char *OperatorChars; /* operators (old $o macro) */ 2210 EXTERN char *PidFile; /* location of proc id file [conf.c] */ 2211 EXTERN char *PostMasterCopy; /* address to get errs cc's */ 2212 EXTERN char *ProcTitlePrefix; /* process title prefix */ 2213 EXTERN char *RealHostName; /* name of host we are talking to */ 2214 EXTERN char *RealUserName; /* real user name of caller */ 2215 EXTERN char *volatile RestartRequest;/* a sendmail restart has been requested */ 2216 EXTERN char *RunAsUserName; /* user to become for bulk of run */ 2217 EXTERN char *SafeFileEnv; /* chroot location for file delivery */ 2218 EXTERN char *ServiceSwitchFile; /* backup service switch */ 2219 EXTERN char *volatile ShutdownRequest;/* a sendmail shutdown has been requested */ 2220 EXTERN char *SmtpGreeting; /* SMTP greeting message (old $e macro) */ 2221 EXTERN char *SmtpPhase; /* current phase in SMTP processing */ 2222 EXTERN char SmtpError[MAXLINE]; /* save failure error messages */ 2223 EXTERN char *StatFile; /* location of statistics summary */ 2224 EXTERN char *TimeZoneSpec; /* override time zone specification */ 2225 EXTERN char *UdbSpec; /* user database source spec */ 2226 EXTERN char *UnixFromLine; /* UNIX From_ line (old $l macro) */ 2227 EXTERN char **ExternalEnviron; /* saved user (input) environment */ 2228 EXTERN char **SaveArgv; /* argument vector for re-execing */ 2229 EXTERN BITMAP256 DontBlameSendmail; /* DontBlameSendmail bits */ 2230 EXTERN SM_FILE_T *InChannel; /* input connection */ 2231 EXTERN SM_FILE_T *OutChannel; /* output connection */ 2232 EXTERN SM_FILE_T *TrafficLogFile; /* file in which to log all traffic */ 2233 #if HESIOD 2234 EXTERN void *HesiodContext; 2235 #endif /* HESIOD */ 2236 EXTERN ENVELOPE *CurEnv; /* envelope currently being processed */ 2237 EXTERN char *RuleSetNames[MAXRWSETS]; /* ruleset number to name */ 2238 EXTERN char *UserEnviron[MAXUSERENVIRON + 1]; 2239 EXTERN struct rewrite *RewriteRules[MAXRWSETS]; 2240 EXTERN struct termescape TermEscape; /* terminal escape codes */ 2241 EXTERN SOCKADDR ConnectOnlyTo; /* override connection address (for testing) */ 2242 EXTERN SOCKADDR RealHostAddr; /* address of host we are talking to */ 2243 extern const SM_EXC_TYPE_T EtypeQuickAbort; /* type of a QuickAbort exception */ 2244 2245 2246 2247 /* 2248 ** Declarations of useful functions 2249 */ 2250 2251 /* Transcript file */ 2252 extern void closexscript __P((ENVELOPE *)); 2253 extern void openxscript __P((ENVELOPE *)); 2254 2255 /* error related */ 2256 extern void buffer_errors __P((void)); 2257 extern void flush_errors __P((bool)); 2258 extern void PRINTFLIKE(1, 2) message __P((const char *, ...)); 2259 extern void PRINTFLIKE(1, 2) nmessage __P((const char *, ...)); 2260 extern void PRINTFLIKE(1, 2) syserr __P((const char *, ...)); 2261 extern void PRINTFLIKE(2, 3) usrerrenh __P((char *, const char *, ...)); 2262 extern void PRINTFLIKE(1, 2) usrerr __P((const char *, ...)); 2263 extern int isenhsc __P((const char *, int)); 2264 extern int extenhsc __P((const char *, int, char *)); 2265 2266 /* alias file */ 2267 extern void alias __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 2268 extern bool aliaswait __P((MAP *, char *, bool)); 2269 extern void forward __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 2270 extern void readaliases __P((MAP *, SM_FILE_T *, bool, bool)); 2271 extern bool rebuildaliases __P((MAP *, bool)); 2272 extern void setalias __P((char *)); 2273 2274 /* logging */ 2275 extern void logdelivery __P((MAILER *, MCI *, char *, const char *, ADDRESS *, time_t, ENVELOPE *)); 2276 extern void logsender __P((ENVELOPE *, char *)); 2277 extern void PRINTFLIKE(3, 4) sm_syslog __P((int, const char *, const char *, ...)); 2278 2279 /* SMTP */ 2280 extern void giveresponse __P((int, char *, MAILER *, MCI *, ADDRESS *, time_t, ENVELOPE *, ADDRESS *)); 2281 extern int reply __P((MAILER *, MCI *, ENVELOPE *, time_t, void (*)(), char **)); 2282 extern void smtp __P((char *volatile, BITMAP256, ENVELOPE *volatile)); 2283 #if SASL 2284 extern int smtpauth __P((MAILER *, MCI *, ENVELOPE *)); 2285 #endif /* SASL */ 2286 extern int smtpdata __P((MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t)); 2287 extern int smtpgetstat __P((MAILER *, MCI *, ENVELOPE *)); 2288 extern int smtpmailfrom __P((MAILER *, MCI *, ENVELOPE *)); 2289 extern void smtpmessage __P((char *, MAILER *, MCI *, ...)); 2290 extern void smtpinit __P((MAILER *, MCI *, ENVELOPE *, bool)); 2291 extern char *smtptodsn __P((int)); 2292 extern int smtpprobe __P((MCI *)); 2293 extern void smtpquit __P((MAILER *, MCI *, ENVELOPE *)); 2294 extern int smtprcpt __P((ADDRESS *, MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t)); 2295 extern void smtprset __P((MAILER *, MCI *, ENVELOPE *)); 2296 2297 #define ISSMTPCODE(c) (isascii(c[0]) && isdigit(c[0]) && \ 2298 isascii(c[1]) && isdigit(c[1]) && \ 2299 isascii(c[2]) && isdigit(c[2])) 2300 #define ISSMTPREPLY(c) (ISSMTPCODE(c) && \ 2301 (c[3] == ' ' || c[3] == '-' || c[3] == '\0')) 2302 2303 /* delivery */ 2304 extern pid_t dowork __P((int, int, char *, bool, bool, ENVELOPE *)); 2305 extern pid_t doworklist __P((ENVELOPE *, bool, bool)); 2306 extern int endmailer __P((MCI *, ENVELOPE *, char **)); 2307 extern int mailfile __P((char *volatile, MAILER *volatile, ADDRESS *, volatile long, ENVELOPE *)); 2308 extern void sendall __P((ENVELOPE *, int)); 2309 2310 /* stats */ 2311 #define STATS_NORMAL 'n' 2312 #if _FFR_QUARANTINE 2313 # define STATS_QUARANTINE 'q' 2314 #endif /* _FFR_QUARANTINE */ 2315 #define STATS_REJECT 'r' 2316 2317 extern void markstats __P((ENVELOPE *, ADDRESS *, int)); 2318 extern void clearstats __P((void)); 2319 extern void poststats __P((char *)); 2320 2321 /* control socket */ 2322 extern void closecontrolsocket __P((bool)); 2323 extern void clrcontrol __P((void)); 2324 extern void control_command __P((int, ENVELOPE *)); 2325 extern int opencontrolsocket __P((void)); 2326 2327 #if MILTER 2328 /* milter functions */ 2329 extern void milter_config __P((char *, struct milter **, int)); 2330 extern void milter_setup __P((char *)); 2331 extern void milter_set_option __P((char *, char *, bool)); 2332 extern bool milter_can_delrcpts __P((void)); 2333 extern bool milter_init __P((ENVELOPE *, char *)); 2334 extern void milter_quit __P((ENVELOPE *)); 2335 extern void milter_abort __P((ENVELOPE *)); 2336 extern char *milter_connect __P((char *, SOCKADDR, ENVELOPE *, char *)); 2337 extern char *milter_helo __P((char *, ENVELOPE *, char *)); 2338 extern char *milter_envfrom __P((char **, ENVELOPE *, char *)); 2339 extern char *milter_envrcpt __P((char **, ENVELOPE *, char *)); 2340 extern char *milter_data __P((ENVELOPE *, char *)); 2341 #endif /* MILTER */ 2342 2343 extern char *addquotes __P((char *, SM_RPOOL_T *)); 2344 extern char *arpadate __P((char *)); 2345 extern bool atobool __P((char *)); 2346 extern int atooct __P((char *)); 2347 extern void auth_warning __P((ENVELOPE *, const char *, ...)); 2348 extern int blocksignal __P((int)); 2349 extern bool bitintersect __P((BITMAP256, BITMAP256)); 2350 extern bool bitzerop __P((BITMAP256)); 2351 extern int check_bodytype __P((char *)); 2352 extern void buildfname __P((char *, char *, char *, int)); 2353 extern bool chkclientmodifiers __P((int)); 2354 extern bool chkdaemonmodifiers __P((int)); 2355 extern int checkcompat __P((ADDRESS *, ENVELOPE *)); 2356 #ifdef XDEBUG 2357 extern void checkfd012 __P((char *)); 2358 extern void checkfdopen __P((int, char *)); 2359 #endif /* XDEBUG */ 2360 extern void checkfds __P((char *)); 2361 extern bool chownsafe __P((int, bool)); 2362 extern void cleanstrcpy __P((char *, char *, int)); 2363 #if SM_CONF_SHM 2364 extern void cleanup_shm __P((bool)); 2365 #endif /* SM_CONF_SHM */ 2366 extern void clrdaemon __P((void)); 2367 extern void collect __P((SM_FILE_T *, bool, HDR **, ENVELOPE *)); 2368 extern time_t convtime __P((char *, int)); 2369 extern char **copyplist __P((char **, bool, SM_RPOOL_T *)); 2370 extern void copy_class __P((int, int)); 2371 extern time_t curtime __P((void)); 2372 extern char *defcharset __P((ENVELOPE *)); 2373 extern char *denlstring __P((char *, bool, bool)); 2374 extern void disconnect __P((int, ENVELOPE *)); 2375 #if _FFR_CONTROL_MSTAT 2376 extern void disk_status __P((SM_FILE_T *, char *)); 2377 #endif /* _FFR_CONTROL_MSTAT */ 2378 extern bool dns_getcanonname __P((char *, int, bool, int *, int *)); 2379 extern pid_t dofork __P((void)); 2380 extern int drop_privileges __P((bool)); 2381 extern int dsntoexitstat __P((char *)); 2382 extern void dumpfd __P((int, bool, bool)); 2383 extern void dumpstate __P((char *)); 2384 extern bool enoughdiskspace __P((long, ENVELOPE *)); 2385 extern char *exitstat __P((char *)); 2386 extern void fatal_error __P((SM_EXC_T *)); 2387 extern char *fgetfolded __P((char *, int, SM_FILE_T *)); 2388 extern void fill_fd __P((int, char *)); 2389 extern char *find_character __P((char *, int)); 2390 extern int finduser __P((char *, bool *, SM_MBDB_T *)); 2391 extern void finis __P((bool, bool, volatile int)); 2392 extern void fixcrlf __P((char *, bool)); 2393 extern long freediskspace __P((char *, long *)); 2394 #if NETINET6 && NEEDSGETIPNODE 2395 extern void freehostent __P((struct hostent *)); 2396 #endif /* NETINET6 && NEEDSGETIPNODE */ 2397 extern char *get_column __P((char *, int, int, char *, int)); 2398 extern char *getauthinfo __P((int, bool *)); 2399 extern int getdtsize __P((void)); 2400 extern int getla __P((void)); 2401 extern char *getmodifiers __P((char *, BITMAP256)); 2402 extern BITMAP256 *getrequests __P((ENVELOPE *)); 2403 extern char *getvendor __P((int)); 2404 extern void help __P((char *, ENVELOPE *)); 2405 extern void init_md __P((int, char **)); 2406 extern void initdaemon __P((void)); 2407 extern void inithostmaps __P((void)); 2408 extern void initmacros __P((ENVELOPE *)); 2409 extern void initsetproctitle __P((int, char **, char **)); 2410 extern void init_vendor_macros __P((ENVELOPE *)); 2411 extern SIGFUNC_DECL intsig __P((int)); 2412 extern bool isloopback __P((SOCKADDR sa)); 2413 extern void load_if_names __P((void)); 2414 extern bool lockfile __P((int, char *, char *, int)); 2415 extern void log_sendmail_pid __P((ENVELOPE *)); 2416 extern void logundelrcpts __P((ENVELOPE *, char *, int, bool)); 2417 extern char lower __P((int)); 2418 extern void makelower __P((char *)); 2419 extern int makeconnection_ds __P((char *, MCI *)); 2420 extern int makeconnection __P((char *, volatile unsigned int, MCI *, ENVELOPE *, time_t)); 2421 extern void makeworkgroups __P((void)); 2422 extern void mark_work_group_restart __P((int, int)); 2423 extern char * munchstring __P((char *, char **, int)); 2424 extern struct hostent *myhostname __P((char *, int)); 2425 extern char *nisplus_default_domain __P((void)); /* extern for Sun */ 2426 extern bool path_is_dir __P((char *, bool)); 2427 extern int pickqdir __P((QUEUEGRP *qg, long fsize, ENVELOPE *e)); 2428 extern char *pintvl __P((time_t, bool)); 2429 extern void printav __P((char **)); 2430 extern void printmailer __P((MAILER *)); 2431 extern void printnqe __P((SM_FILE_T *, char *)); 2432 extern void printopenfds __P((bool)); 2433 extern void printqueue __P((void)); 2434 extern void printrules __P((void)); 2435 extern pid_t prog_open __P((char **, int *, ENVELOPE *)); 2436 extern void putline __P((char *, MCI *)); 2437 extern void putxline __P((char *, size_t, MCI *, int)); 2438 extern void queueup_macros __P((int, SM_FILE_T *, ENVELOPE *)); 2439 extern void readcf __P((char *, bool, ENVELOPE *)); 2440 extern SIGFUNC_DECL reapchild __P((int)); 2441 extern int releasesignal __P((int)); 2442 extern void resetlimits __P((void)); 2443 extern void restart_daemon __P((void)); 2444 extern void restart_marked_work_groups __P(()); 2445 extern bool rfc822_string __P((char *)); 2446 extern bool savemail __P((ENVELOPE *, bool)); 2447 extern void seed_random __P((void)); 2448 extern void sendtoargv __P((char **, ENVELOPE *)); 2449 extern void setclientoptions __P((char *)); 2450 extern bool setdaemonoptions __P((char *)); 2451 extern void setdefaults __P((ENVELOPE *)); 2452 extern void setdefuser __P((void)); 2453 extern bool setvendor __P((char *)); 2454 extern void set_op_mode __P((int)); 2455 extern void setoption __P((int, char *, bool, bool, ENVELOPE *)); 2456 extern sigfunc_t setsignal __P((int, sigfunc_t)); 2457 extern void setuserenv __P((const char *, const char *)); 2458 extern void settime __P((ENVELOPE *)); 2459 extern char *sfgets __P((char *, int, SM_FILE_T *, time_t, char *)); 2460 extern char *shortenstring __P((const char *, size_t)); 2461 extern char *shorten_hostname __P((char [])); 2462 extern bool shorten_rfc822_string __P((char *, size_t)); 2463 extern void shutdown_daemon __P((void)); 2464 extern struct hostent *sm_gethostbyname __P((char *, int)); 2465 extern struct hostent *sm_gethostbyaddr __P((char *, int, int)); 2466 extern void sm_getla __P((void)); 2467 extern struct passwd *sm_getpwnam __P((char *)); 2468 extern struct passwd *sm_getpwuid __P((UID_T)); 2469 extern void sm_setproctitle __P((bool, ENVELOPE *, const char *, ...)); 2470 extern pid_t sm_wait __P((int *)); 2471 extern bool split_by_recipient __P((ENVELOPE *e)); 2472 extern void stop_sendmail __P((void)); 2473 extern char *str2prt __P((char *)); 2474 extern bool strcontainedin __P((bool, char *, char *)); 2475 extern int switch_map_find __P((char *, char *[], short [])); 2476 extern bool transienterror __P((int)); 2477 #if _FFR_BESTMX_BETTER_TRUNCATION || _FFR_DNSMAP_MULTI 2478 extern void truncate_at_delim __P((char *, size_t, int)); 2479 #endif /* _FFR_BESTMX_BETTER_TRUNCATION || _FFR_DNSMAP_MULTI */ 2480 extern void tTflag __P((char *)); 2481 extern void tTsetup __P((unsigned char *, unsigned int, char *)); 2482 extern SIGFUNC_DECL tick __P((int)); 2483 extern char *ttypath __P((void)); 2484 extern void unlockqueue __P((ENVELOPE *)); 2485 #if !HASUNSETENV 2486 extern void unsetenv __P((char *)); 2487 #endif /* !HASUNSETENV */ 2488 2489 /* update file system information: +/- some blocks */ 2490 #if SM_CONF_SHM 2491 extern void upd_qs __P((ENVELOPE *, bool, bool)); 2492 # define updfs(e, delete, avail) upd_qs(e, delete, avail) 2493 #else /* SM_CONF_SHM */ 2494 # define updfs(e, delete, avail) 2495 #endif /* SM_CONF_SHM */ 2496 2497 extern char *username __P((void)); 2498 extern bool usershellok __P((char *, char *)); 2499 extern void vendor_post_defaults __P((ENVELOPE *)); 2500 extern void vendor_pre_defaults __P((ENVELOPE *)); 2501 extern int waitfor __P((pid_t)); 2502 extern bool writable __P((char *, ADDRESS *, long)); 2503 #if SM_HEAP_CHECK 2504 # define xalloc(size) xalloc_tagged(size, __FILE__, __LINE__) 2505 extern char *xalloc_tagged __P((int, char*, int)); 2506 #else /* SM_HEAP_CHECK */ 2507 extern char *xalloc __P((int)); 2508 #endif /* SM_HEAP_CHECK */ 2509 extern void xputs __P((const char *)); 2510 extern char *xtextify __P((char *, char *)); 2511 extern bool xtextok __P((char *)); 2512 extern int xunlink __P((char *)); 2513 extern char *xuntextify __P((char *)); 2514 2515 2516 #endif /* ! _SENDMAIL_H */ 2517