sendmail.h revision 184980
1/* 2 * Copyright (c) 1998-2008 Sendmail, Inc. and its suppliers. 3 * All rights reserved. 4 * Copyright (c) 1983, 1995-1997 Eric P. Allman. All rights reserved. 5 * Copyright (c) 1988, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * By using this file, you agree to the terms and conditions set 9 * forth in the LICENSE file which can be found at the top level of 10 * the sendmail distribution. 11 */ 12 13/* 14** SENDMAIL.H -- MTA-specific definitions for sendmail. 15*/ 16 17#ifndef _SENDMAIL_H 18# define _SENDMAIL_H 1 19 20#ifndef MILTER 21# define MILTER 1 /* turn on MILTER by default */ 22#endif /* MILTER */ 23 24#ifdef _DEFINE 25# define EXTERN 26#else /* _DEFINE */ 27# define EXTERN extern 28#endif /* _DEFINE */ 29 30 31#include <unistd.h> 32 33#include <stddef.h> 34#include <stdlib.h> 35#include <stdio.h> 36#include <ctype.h> 37#include <setjmp.h> 38#include <string.h> 39#include <time.h> 40# ifdef EX_OK 41# undef EX_OK /* for SVr4.2 SMP */ 42# endif /* EX_OK */ 43 44#include "sendmail/sendmail.h" 45 46/* profiling? */ 47#if MONCONTROL 48# define SM_PROF(x) moncontrol(x) 49#else /* MONCONTROL */ 50# define SM_PROF(x) 51#endif /* MONCONTROL */ 52 53#ifdef _DEFINE 54# ifndef lint 55SM_UNUSED(static char SmailId[]) = "@(#)$Id: sendmail.h,v 8.1059 2008/02/15 23:19:58 ca Exp $"; 56# endif /* ! lint */ 57#endif /* _DEFINE */ 58 59#include "bf.h" 60#include "timers.h" 61#include <sm/exc.h> 62#include <sm/heap.h> 63#include <sm/debug.h> 64#include <sm/rpool.h> 65#include <sm/io.h> 66#include <sm/path.h> 67#include <sm/signal.h> 68#include <sm/clock.h> 69#include <sm/mbdb.h> 70#include <sm/errstring.h> 71#include <sm/sysexits.h> 72#include <sm/shm.h> 73#include <sm/misc.h> 74 75#ifdef LOG 76# include <syslog.h> 77#endif /* LOG */ 78 79 80 81# if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 82# include <sys/socket.h> 83# endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */ 84# if NETUNIX 85# include <sys/un.h> 86# endif /* NETUNIX */ 87# if NETINET || NETINET6 88# include <netinet/in.h> 89# endif /* NETINET || NETINET6 */ 90# if NETINET6 91/* 92** There is no standard yet for IPv6 includes. 93** Specify OS specific implementation in conf.h 94*/ 95# endif /* NETINET6 */ 96# if NETISO 97# include <netiso/iso.h> 98# endif /* NETISO */ 99# if NETNS 100# include <netns/ns.h> 101# endif /* NETNS */ 102# if NETX25 103# include <netccitt/x25.h> 104# endif /* NETX25 */ 105 106# if NAMED_BIND 107# include <arpa/nameser.h> 108# ifdef NOERROR 109# undef NOERROR /* avoid <sys/streams.h> conflict */ 110# endif /* NOERROR */ 111# include <resolv.h> 112# else /* NAMED_BIND */ 113# undef SM_SET_H_ERRNO 114# define SM_SET_H_ERRNO(err) 115# endif /* NAMED_BIND */ 116 117# if HESIOD 118# include <hesiod.h> 119# if !defined(HES_ER_OK) || defined(HESIOD_INTERFACES) 120# define HESIOD_INIT /* support for the new interface */ 121# endif /* !defined(HES_ER_OK) || defined(HESIOD_INTERFACES) */ 122# endif /* HESIOD */ 123 124#if STARTTLS 125# include <openssl/ssl.h> 126# if !TLS_NO_RSA 127# define RSA_KEYLENGTH 512 128# endif /* !TLS_NO_RSA */ 129#endif /* STARTTLS */ 130 131#if SASL /* include the sasl include files if we have them */ 132 133 134# if SASL == 2 || SASL >= 20000 135# include <sasl/sasl.h> 136# include <sasl/saslutil.h> 137# else /* SASL == 2 || SASL >= 20000 */ 138# include <sasl.h> 139# include <saslutil.h> 140# endif /* SASL == 2 || SASL >= 20000 */ 141# if defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) 142# define SASL_VERSION (SASL_VERSION_MAJOR * 10000) + (SASL_VERSION_MINOR * 100) + SASL_VERSION_STEP 143# if SASL == 1 || SASL == 2 144# undef SASL 145# define SASL SASL_VERSION 146# else /* SASL == 1 || SASL == 2 */ 147# if SASL != SASL_VERSION 148 ERROR README: -DSASL (SASL) does not agree with the version of the CYRUS_SASL library (SASL_VERSION) 149 ERROR README: see README! 150# endif /* SASL != SASL_VERSION */ 151# endif /* SASL == 1 || SASL == 2 */ 152# else /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */ 153# if SASL == 1 154 ERROR README: please set -DSASL to the version of the CYRUS_SASL library 155 ERROR README: see README! 156# endif /* SASL == 1 */ 157# endif /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */ 158#endif /* SASL */ 159 160/* 161** Following are "sort of" configuration constants, but they should 162** be pretty solid on most architectures today. They have to be 163** defined after <arpa/nameser.h> because some versions of that 164** file also define them. In all cases, we can't use sizeof because 165** some systems (e.g., Crays) always treat everything as being at 166** least 64 bits. 167*/ 168 169#ifndef INADDRSZ 170# define INADDRSZ 4 /* size of an IPv4 address in bytes */ 171#endif /* ! INADDRSZ */ 172#ifndef IN6ADDRSZ 173# define IN6ADDRSZ 16 /* size of an IPv6 address in bytes */ 174#endif /* ! IN6ADDRSZ */ 175#ifndef INT16SZ 176# define INT16SZ 2 /* size of a 16 bit integer in bytes */ 177#endif /* ! INT16SZ */ 178#ifndef INT32SZ 179# define INT32SZ 4 /* size of a 32 bit integer in bytes */ 180#endif /* ! INT32SZ */ 181#ifndef INADDR_LOOPBACK 182# define INADDR_LOOPBACK 0x7f000001 /* loopback address */ 183#endif /* ! INADDR_LOOPBACK */ 184 185/* 186** Error return from inet_addr(3), in case not defined in /usr/include. 187*/ 188 189#ifndef INADDR_NONE 190# define INADDR_NONE 0xffffffff 191#endif /* ! INADDR_NONE */ 192 193 194/* (f)open() modes for queue files */ 195# define QF_O_EXTRA 0 196 197 198/* 199** An 'argument class' describes the storage allocation status 200** of an object pointed to by an argument to a function. 201*/ 202 203typedef enum 204{ 205 A_HEAP, /* the storage was allocated by malloc, and the 206 * ownership of the storage is ceded by the caller 207 * to the called function. */ 208 A_TEMP, /* The storage is temporary, and is only guaranteed 209 * to be valid for the duration of the function call. */ 210 A_PERM /* The storage is 'permanent': this might mean static 211 * storage, or rpool storage. */ 212} ARGCLASS_T; 213 214/* forward references for prototypes */ 215typedef struct envelope ENVELOPE; 216typedef struct mailer MAILER; 217typedef struct queuegrp QUEUEGRP; 218 219/* 220** Address structure. 221** Addresses are stored internally in this structure. 222*/ 223 224struct address 225{ 226 char *q_paddr; /* the printname for the address */ 227 char *q_user; /* user name */ 228 char *q_ruser; /* real user name, or NULL if q_user */ 229 char *q_host; /* host name */ 230 struct mailer *q_mailer; /* mailer to use */ 231 unsigned long q_flags; /* status flags, see below */ 232 uid_t q_uid; /* user-id of receiver (if known) */ 233 gid_t q_gid; /* group-id of receiver (if known) */ 234 char *q_home; /* home dir (local mailer only) */ 235 char *q_fullname; /* full name if known */ 236 struct address *q_next; /* chain */ 237 struct address *q_alias; /* address this results from */ 238 char *q_owner; /* owner of q_alias */ 239 struct address *q_tchain; /* temporary use chain */ 240#if PIPELINING 241 struct address *q_pchain; /* chain for pipelining */ 242#endif /* PIPELINING */ 243 char *q_finalrcpt; /* Final-Recipient: DSN header */ 244 char *q_orcpt; /* ORCPT parameter from RCPT TO: line */ 245 char *q_status; /* status code for DSNs */ 246 char *q_rstatus; /* remote status message for DSNs */ 247 time_t q_statdate; /* date of status messages */ 248 char *q_statmta; /* MTA generating q_rstatus */ 249 short q_state; /* address state, see below */ 250 char *q_signature; /* MX-based sorting value */ 251 int q_qgrp; /* index into queue groups */ 252 int q_qdir; /* queue directory inside group */ 253 char *q_message; /* error message */ 254}; 255 256typedef struct address ADDRESS; 257 258/* bit values for q_flags */ 259#define QGOODUID 0x00000001 /* the q_uid q_gid fields are good */ 260#define QPRIMARY 0x00000002 /* set from RCPT or argv */ 261#define QNOTREMOTE 0x00000004 /* address not for remote forwarding */ 262#define QSELFREF 0x00000008 /* this address references itself */ 263#define QBOGUSSHELL 0x00000010 /* user has no valid shell listed */ 264#define QUNSAFEADDR 0x00000020 /* address acquired via unsafe path */ 265#define QPINGONSUCCESS 0x00000040 /* give return on successful delivery */ 266#define QPINGONFAILURE 0x00000080 /* give return on failure */ 267#define QPINGONDELAY 0x00000100 /* give return on message delay */ 268#define QHASNOTIFY 0x00000200 /* propagate notify parameter */ 269#define QRELAYED 0x00000400 /* DSN: relayed to non-DSN aware sys */ 270#define QEXPANDED 0x00000800 /* DSN: undergone list expansion */ 271#define QDELIVERED 0x00001000 /* DSN: successful final delivery */ 272#define QDELAYED 0x00002000 /* DSN: message delayed */ 273#define QALIAS 0x00004000 /* expanded alias */ 274#define QBYTRACE 0x00008000 /* DeliverBy: trace */ 275#define QBYNDELAY 0x00010000 /* DeliverBy: notify, delay */ 276#define QBYNRELAY 0x00020000 /* DeliverBy: notify, relayed */ 277#define QTHISPASS 0x40000000 /* temp: address set this pass */ 278#define QRCPTOK 0x80000000 /* recipient() processed address */ 279 280#define Q_PINGFLAGS (QPINGONSUCCESS|QPINGONFAILURE|QPINGONDELAY) 281 282/* values for q_state */ 283#define QS_OK 0 /* address ok (for now)/not yet tried */ 284#define QS_SENT 1 /* good address, delivery complete */ 285#define QS_BADADDR 2 /* illegal address */ 286#define QS_QUEUEUP 3 /* save address in queue */ 287#define QS_RETRY 4 /* retry delivery for next MX */ 288#define QS_VERIFIED 5 /* verified, but not expanded */ 289 290/* 291** Notice: all of the following values are variations of QS_DONTSEND. 292** If new states are added, they must be inserted in the proper place! 293** See the macro definition of QS_IS_DEAD() down below. 294*/ 295 296#define QS_DONTSEND 6 /* don't send to this address */ 297#define QS_EXPANDED 7 /* expanded */ 298#define QS_SENDER 8 /* message sender (MeToo) */ 299#define QS_CLONED 9 /* addr cloned to split envelope */ 300#define QS_DISCARDED 10 /* rcpt discarded (EF_DISCARD) */ 301#define QS_REPLACED 11 /* maplocaluser()/UserDB replaced */ 302#define QS_REMOVED 12 /* removed (removefromlist()) */ 303#define QS_DUPLICATE 13 /* duplicate suppressed */ 304#define QS_INCLUDED 14 /* :include: delivery */ 305#define QS_FATALERR 15 /* fatal error, don't deliver */ 306 307/* address state testing primitives */ 308#define QS_IS_OK(s) ((s) == QS_OK) 309#define QS_IS_SENT(s) ((s) == QS_SENT) 310#define QS_IS_BADADDR(s) ((s) == QS_BADADDR) 311#define QS_IS_QUEUEUP(s) ((s) == QS_QUEUEUP) 312#define QS_IS_RETRY(s) ((s) == QS_RETRY) 313#define QS_IS_VERIFIED(s) ((s) == QS_VERIFIED) 314#define QS_IS_EXPANDED(s) ((s) == QS_EXPANDED) 315#define QS_IS_REMOVED(s) ((s) == QS_REMOVED) 316#define QS_IS_UNDELIVERED(s) ((s) == QS_OK || \ 317 (s) == QS_QUEUEUP || \ 318 (s) == QS_RETRY || \ 319 (s) == QS_VERIFIED) 320#define QS_IS_UNMARKED(s) ((s) == QS_OK || \ 321 (s) == QS_RETRY) 322#define QS_IS_SENDABLE(s) ((s) == QS_OK || \ 323 (s) == QS_QUEUEUP || \ 324 (s) == QS_RETRY) 325#define QS_IS_ATTEMPTED(s) ((s) == QS_QUEUEUP || \ 326 (s) == QS_RETRY || \ 327 (s) == QS_SENT || \ 328 (s) == QS_DISCARDED) 329#define QS_IS_DEAD(s) ((s) >= QS_DONTSEND) 330 331 332#define NULLADDR ((ADDRESS *) NULL) 333 334extern ADDRESS NullAddress; /* a null (template) address [main.c] */ 335 336/* functions */ 337extern void cataddr __P((char **, char **, char *, int, int, bool)); 338extern char *crackaddr __P((char *, ENVELOPE *)); 339extern bool emptyaddr __P((ADDRESS *)); 340extern ADDRESS *getctladdr __P((ADDRESS *)); 341extern int include __P((char *, bool, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 342extern bool invalidaddr __P((char *, char *, bool)); 343extern ADDRESS *parseaddr __P((char *, ADDRESS *, int, int, char **, 344 ENVELOPE *, bool)); 345extern char **prescan __P((char *, int, char[], int, char **, unsigned char *, bool)); 346extern void printaddr __P((SM_FILE_T *, ADDRESS *, bool)); 347extern ADDRESS *recipient __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 348extern char *remotename __P((char *, MAILER *, int, int *, ENVELOPE *)); 349extern int rewrite __P((char **, int, int, ENVELOPE *, int)); 350extern bool sameaddr __P((ADDRESS *, ADDRESS *)); 351extern int sendtolist __P((char *, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 352#if MILTER 353extern int removefromlist __P((char *, ADDRESS **, ENVELOPE *)); 354#endif /* MILTER */ 355extern void setsender __P((char *, ENVELOPE *, char **, int, bool)); 356typedef void esmtp_args_F __P((ADDRESS *, char *, char *, ENVELOPE *)); 357extern void parse_esmtp_args __P((ENVELOPE *, ADDRESS *, char *, char *, 358 char *, char *args[], esmtp_args_F)); 359extern esmtp_args_F mail_esmtp_args; 360extern esmtp_args_F rcpt_esmtp_args; 361extern void reset_mail_esmtp_args __P((ENVELOPE *)); 362 363/* macro to simplify the common call to rewrite() */ 364#define REWRITE(pvp, rs, env) rewrite(pvp, rs, 0, env, MAXATOM) 365 366/* 367** Token Tables for prescan 368*/ 369 370extern unsigned char ExtTokenTab[256]; /* external strings */ 371extern unsigned char IntTokenTab[256]; /* internal strings */ 372 373 374/* 375** Mailer definition structure. 376** Every mailer known to the system is declared in this 377** structure. It defines the pathname of the mailer, some 378** flags associated with it, and the argument vector to 379** pass to it. The flags are defined in conf.c 380** 381** The argument vector is expanded before actual use. All 382** words except the first are passed through the macro 383** processor. 384*/ 385 386struct mailer 387{ 388 char *m_name; /* symbolic name of this mailer */ 389 char *m_mailer; /* pathname of the mailer to use */ 390 char *m_mtatype; /* type of this MTA */ 391 char *m_addrtype; /* type for addresses */ 392 char *m_diagtype; /* type for diagnostics */ 393 BITMAP256 m_flags; /* status flags, see below */ 394 short m_mno; /* mailer number internally */ 395 short m_nice; /* niceness to run at (mostly for prog) */ 396 char **m_argv; /* template argument vector */ 397 short m_sh_rwset; /* rewrite set: sender header addresses */ 398 short m_se_rwset; /* rewrite set: sender envelope addresses */ 399 short m_rh_rwset; /* rewrite set: recipient header addresses */ 400 short m_re_rwset; /* rewrite set: recipient envelope addresses */ 401 char *m_eol; /* end of line string */ 402 long m_maxsize; /* size limit on message to this mailer */ 403 int m_linelimit; /* max # characters per line */ 404 int m_maxdeliveries; /* max deliveries per mailer connection */ 405 char *m_execdir; /* directory to chdir to before execv */ 406 char *m_rootdir; /* directory to chroot to before execv */ 407 uid_t m_uid; /* UID to run as */ 408 gid_t m_gid; /* GID to run as */ 409 char *m_defcharset; /* default character set */ 410 time_t m_wait; /* timeout to wait for end */ 411 int m_maxrcpt; /* max recipients per envelope client-side */ 412 short m_qgrp; /* queue group for this mailer */ 413}; 414 415/* bits for m_flags */ 416#define M_ESMTP 'a' /* run Extended SMTP */ 417#define M_ALIASABLE 'A' /* user can be LHS of an alias */ 418#define M_BLANKEND 'b' /* ensure blank line at end of message */ 419#define M_STRIPBACKSL 'B' /* strip all leading backslashes from user */ 420#define M_NOCOMMENT 'c' /* don't include comment part of address */ 421#define M_CANONICAL 'C' /* make addresses canonical "u@dom" */ 422#define M_NOBRACKET 'd' /* never angle bracket envelope route-addrs */ 423 /* 'D' CF: include Date: */ 424#define M_EXPENSIVE 'e' /* it costs to use this mailer.... */ 425#define M_ESCFROM 'E' /* escape From lines to >From */ 426#define M_FOPT 'f' /* mailer takes picky -f flag */ 427 /* 'F' CF: include From: or Resent-From: */ 428#define M_NO_NULL_FROM 'g' /* sender of errors should be $g */ 429#define M_HST_UPPER 'h' /* preserve host case distinction */ 430#define M_PREHEAD 'H' /* MAIL11V3: preview headers */ 431#define M_UDBENVELOPE 'i' /* do udbsender rewriting on envelope */ 432#define M_INTERNAL 'I' /* SMTP to another sendmail site */ 433#define M_UDBRECIPIENT 'j' /* do udbsender rewriting on recipient lines */ 434#define M_NOLOOPCHECK 'k' /* don't check for loops in HELO command */ 435#define M_CHUNKING 'K' /* CHUNKING: reserved for future use */ 436#define M_LOCALMAILER 'l' /* delivery is to this host */ 437#define M_LIMITS 'L' /* must enforce SMTP line limits */ 438#define M_MUSER 'm' /* can handle multiple users at once */ 439 /* 'M' CF: include Message-Id: */ 440#define M_NHDR 'n' /* don't insert From line */ 441#define M_MANYSTATUS 'N' /* MAIL11V3: DATA returns multi-status */ 442#define M_RUNASRCPT 'o' /* always run mailer as recipient */ 443#define M_FROMPATH 'p' /* use reverse-path in MAIL FROM: */ 444 /* 'P' CF: include Return-Path: */ 445#define M_VRFY250 'q' /* VRFY command returns 250 instead of 252 */ 446#define M_ROPT 'r' /* mailer takes picky -r flag */ 447#define M_SECURE_PORT 'R' /* try to send on a reserved TCP port */ 448#define M_STRIPQ 's' /* strip quote chars from user/host */ 449#define M_SPECIFIC_UID 'S' /* run as specific uid/gid */ 450#define M_USR_UPPER 'u' /* preserve user case distinction */ 451#define M_UGLYUUCP 'U' /* this wants an ugly UUCP from line */ 452#define M_CONTENT_LEN 'v' /* add Content-Length: header (SVr4) */ 453 /* 'V' UIUC: !-relativize all addresses */ 454#define M_HASPWENT 'w' /* check for /etc/passwd entry */ 455#define M_NOHOSTSTAT 'W' /* ignore long term host status information */ 456 /* 'x' CF: include Full-Name: */ 457#define M_XDOT 'X' /* use hidden-dot algorithm */ 458#define M_LMTP 'z' /* run Local Mail Transport Protocol */ 459#define M_DIALDELAY 'Z' /* apply dial delay sleeptime */ 460#define M_NOMX '0' /* turn off MX lookups */ 461#define M_NONULLS '1' /* don't send null bytes */ 462#define M_FSMTP '2' /* force SMTP (no ESMTP even if offered) */ 463#define M_EBCDIC '3' /* extend Q-P encoding for EBCDIC */ 464#define M_TRYRULESET5 '5' /* use ruleset 5 after local aliasing */ 465#define M_7BITHDRS '6' /* strip headers to 7 bits even in 8 bit path */ 466#define M_7BITS '7' /* use 7-bit path */ 467#define M_8BITS '8' /* force "just send 8" behaviour */ 468#define M_MAKE8BIT '9' /* convert 7 -> 8 bit if appropriate */ 469#define M_CHECKINCLUDE ':' /* check for :include: files */ 470#define M_CHECKPROG '|' /* check for |program addresses */ 471#define M_CHECKFILE '/' /* check for /file addresses */ 472#define M_CHECKUDB '@' /* user can be user database key */ 473#define M_CHECKHDIR '~' /* SGI: check for valid home directory */ 474#define M_HOLD '%' /* Hold delivery until ETRN/-qI/-qR/-qS */ 475#define M_PLUS '+' /* Reserved: Used in mc for adding new flags */ 476#define M_MINUS '-' /* Reserved: Used in mc for removing flags */ 477 478/* functions */ 479extern void initerrmailers __P((void)); 480extern void makemailer __P((char *)); 481extern void makequeue __P((char *, bool)); 482extern void runqueueevent __P((int)); 483#if _FFR_QUEUE_RUN_PARANOIA 484extern bool checkqueuerunner __P((void)); 485#endif /* _FFR_QUEUE_RUN_PARANOIA */ 486 487EXTERN MAILER *FileMailer; /* ptr to *file* mailer */ 488EXTERN MAILER *InclMailer; /* ptr to *include* mailer */ 489EXTERN MAILER *LocalMailer; /* ptr to local mailer */ 490EXTERN MAILER *ProgMailer; /* ptr to program mailer */ 491EXTERN MAILER *Mailer[MAXMAILERS + 1]; 492 493/* 494** Queue group definition structure. 495** Every queue group known to the system is declared in this structure. 496** It defines the basic pathname of the queue group, some flags 497** associated with it, and the argument vector to pass to it. 498*/ 499 500struct qpaths_s 501{ 502 char *qp_name; /* name of queue dir, relative path */ 503 short qp_subdirs; /* use subdirs? */ 504 short qp_fsysidx; /* file system index of this directory */ 505# if SM_CONF_SHM 506 int qp_idx; /* index into array for queue information */ 507# endif /* SM_CONF_SHM */ 508}; 509 510typedef struct qpaths_s QPATHS; 511 512struct queuegrp 513{ 514 char *qg_name; /* symbolic name of this queue group */ 515 516 /* 517 ** For now this is the same across all queue groups. 518 ** Otherwise we have to play around with chdir(). 519 */ 520 521 char *qg_qdir; /* common component of queue directory */ 522 short qg_index; /* queue number internally, index in Queue[] */ 523 int qg_maxqrun; /* max # of jobs in 1 queuerun */ 524 int qg_numqueues; /* number of queues in this queue */ 525 526 /* 527 ** qg_queueintvl == 0 denotes that no individual value is used. 528 ** Whatever accesses this must deal with "<= 0" as 529 ** "not set, use appropriate default". 530 */ 531 532 time_t qg_queueintvl; /* interval for queue runs */ 533 QPATHS *qg_qpaths; /* list of queue directories */ 534 BITMAP256 qg_flags; /* status flags, see below */ 535 short qg_nice; /* niceness for queue run */ 536 int qg_wgrp; /* Assigned to this work group */ 537 int qg_maxlist; /* max items in work queue for this group */ 538 int qg_curnum; /* current number of queue for queue runs */ 539 int qg_maxrcpt; /* max recipients per envelope, 0==no limit */ 540 541 time_t qg_nextrun; /* time for next queue runs */ 542#if _FFR_QUEUE_GROUP_SORTORDER 543 short qg_sortorder; /* how do we sort this queuerun */ 544#endif /* _FFR_QUEUE_GROUP_SORTORDER */ 545#if 0 546 long qg_wkrcptfact; /* multiplier for # recipients -> priority */ 547 long qg_qfactor; /* slope of queue function */ 548 bool qg_doqueuerun; /* XXX flag is it time to do a queuerun */ 549#endif /* 0 */ 550}; 551 552/* bits for qg_flags (XXX: unused as of now) */ 553#define QD_DEFINED ((char) 1) /* queue group has been defined */ 554#define QD_FORK 'f' /* fork queue runs */ 555 556extern void filesys_update __P((void)); 557#if _FFR_ANY_FREE_FS 558extern bool filesys_free __P((long)); 559#endif /* _FFR_ANY_FREE_FS */ 560 561#if SASL 562/* 563** SASL 564*/ 565 566/* lines in authinfo file or index into SASL_AI_T */ 567# define SASL_WRONG (-1) 568# define SASL_USER 0 /* authorization id (user) */ 569# define SASL_AUTHID 1 /* authentication id */ 570# define SASL_PASSWORD 2 /* password fuer authid */ 571# define SASL_DEFREALM 3 /* realm to use */ 572# define SASL_MECHLIST 4 /* list of mechanisms to try */ 573# define SASL_ID_REALM 5 /* authid@defrealm */ 574 575/* 576** Current mechanism; this is just used to convey information between 577** invocation of SASL callback functions. 578** It must be last in the list, because it's not allocated by us 579** and hence we don't free() it. 580*/ 581# define SASL_MECH 6 582# define SASL_ENTRIES 7 /* number of entries in array */ 583 584# define SASL_USER_BIT (1 << SASL_USER) 585# define SASL_AUTHID_BIT (1 << SASL_AUTHID) 586# define SASL_PASSWORD_BIT (1 << SASL_PASSWORD) 587# define SASL_DEFREALM_BIT (1 << SASL_DEFREALM) 588# define SASL_MECHLIST_BIT (1 << SASL_MECHLIST) 589 590/* authenticated? */ 591# define SASL_NOT_AUTH 0 /* not authenticated */ 592# define SASL_PROC_AUTH 1 /* in process of authenticating */ 593# define SASL_IS_AUTH 2 /* authenticated */ 594 595/* SASL options */ 596# define SASL_AUTH_AUTH 0x1000 /* use auth= only if authenticated */ 597# if SASL >= 20101 598# define SASL_SEC_MASK SASL_SEC_MAXIMUM /* mask for SASL_SEC_* values: sasl.h */ 599# else /* SASL >= 20101 */ 600# define SASL_SEC_MASK 0x0fff /* mask for SASL_SEC_* values: sasl.h */ 601# if (SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 || \ 602 (SASL_SEC_NOACTIVE & SASL_SEC_MASK) == 0 || \ 603 (SASL_SEC_NODICTIONARY & SASL_SEC_MASK) == 0 || \ 604 (SASL_SEC_FORWARD_SECRECY & SASL_SEC_MASK) == 0 || \ 605 (SASL_SEC_NOANONYMOUS & SASL_SEC_MASK) == 0 || \ 606 (SASL_SEC_PASS_CREDENTIALS & SASL_SEC_MASK) == 0 607ERROR: change SASL_SEC_MASK_ notify sendmail.org! 608# endif /* SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 ... */ 609# endif /* SASL >= 20101 */ 610# define MAXOUTLEN 8192 /* length of output buffer */ 611 612/* functions */ 613extern char *intersect __P((char *, char *, SM_RPOOL_T *)); 614extern char *iteminlist __P((char *, char *, char *)); 615# if SASL >= 20000 616extern int proxy_policy __P((sasl_conn_t *, void *, const char *, unsigned, const char *, unsigned, const char *, unsigned, struct propctx *)); 617extern int safesaslfile __P((void *, const char *, sasl_verify_type_t)); 618# else /* SASL >= 20000 */ 619extern int proxy_policy __P((void *, const char *, const char *, const char **, const char **)); 620# if SASL > 10515 621extern int safesaslfile __P((void *, char *, int)); 622# else /* SASL > 10515 */ 623extern int safesaslfile __P((void *, char *)); 624# endif /* SASL > 10515 */ 625# endif /* SASL >= 20000 */ 626extern void stop_sasl_client __P((void)); 627 628/* structure to store authinfo */ 629typedef char *SASL_AI_T[SASL_ENTRIES]; 630 631EXTERN char *AuthMechanisms; /* AUTH mechanisms */ 632EXTERN char *AuthRealm; /* AUTH realm */ 633EXTERN char *SASLInfo; /* file with AUTH info */ 634EXTERN int SASLOpts; /* options for SASL */ 635EXTERN int MaxSLBits; /* max. encryption bits for SASL */ 636#endif /* SASL */ 637 638/* 639** Structure to store macros. 640*/ 641typedef struct 642{ 643 SM_RPOOL_T *mac_rpool; /* resource pool */ 644 BITMAP256 mac_allocated; /* storage has been alloc()? */ 645 char *mac_table[MAXMACROID + 1]; /* macros */ 646} MACROS_T; 647 648EXTERN MACROS_T GlobalMacros; 649 650/* 651** Information about currently open connections to mailers, or to 652** hosts that we have looked up recently. 653*/ 654 655#define MCI struct mailer_con_info 656 657MCI 658{ 659 unsigned long mci_flags; /* flag bits, see below */ 660 short mci_errno; /* error number on last connection */ 661 short mci_herrno; /* h_errno from last DNS lookup */ 662 short mci_exitstat; /* exit status from last connection */ 663 short mci_state; /* SMTP state */ 664 int mci_deliveries; /* delivery attempts for connection */ 665 long mci_maxsize; /* max size this server will accept */ 666 SM_FILE_T *mci_in; /* input side of connection */ 667 SM_FILE_T *mci_out; /* output side of connection */ 668 pid_t mci_pid; /* process id of subordinate proc */ 669 char *mci_phase; /* SMTP phase string */ 670 struct mailer *mci_mailer; /* ptr to the mailer for this conn */ 671 char *mci_host; /* host name */ 672 char *mci_status; /* DSN status to be copied to addrs */ 673 char *mci_rstatus; /* SMTP status to be copied to addrs */ 674 time_t mci_lastuse; /* last usage time */ 675 SM_FILE_T *mci_statfile; /* long term status file */ 676 char *mci_heloname; /* name to use as HELO arg */ 677 long mci_min_by; /* minimum DELIVERBY */ 678 bool mci_retryrcpt; /* tempfail for at least one rcpt */ 679 char *mci_tolist; /* list of valid recipients */ 680 SM_RPOOL_T *mci_rpool; /* resource pool */ 681#if PIPELINING 682 int mci_okrcpts; /* number of valid recipients */ 683 ADDRESS *mci_nextaddr; /* next address for pipelined status */ 684#endif /* PIPELINING */ 685#if SASL 686 SASL_AI_T mci_sai; /* authentication info */ 687 bool mci_sasl_auth; /* authenticated? */ 688 int mci_sasl_string_len; 689 char *mci_sasl_string; /* sasl reply string */ 690 char *mci_saslcap; /* SASL list of mechanisms */ 691 sasl_conn_t *mci_conn; /* SASL connection */ 692#endif /* SASL */ 693#if STARTTLS 694 SSL *mci_ssl; /* SSL connection */ 695#endif /* STARTTLS */ 696 MACROS_T mci_macro; /* macro definitions */ 697}; 698 699 700/* flag bits */ 701#define MCIF_VALID 0x00000001 /* this entry is valid */ 702/* 0x00000002 unused, was MCIF_TEMP */ 703#define MCIF_CACHED 0x00000004 /* currently in open cache */ 704#define MCIF_ESMTP 0x00000008 /* this host speaks ESMTP */ 705#define MCIF_EXPN 0x00000010 /* EXPN command supported */ 706#define MCIF_SIZE 0x00000020 /* SIZE option supported */ 707#define MCIF_8BITMIME 0x00000040 /* BODY=8BITMIME supported */ 708#define MCIF_7BIT 0x00000080 /* strip this message to 7 bits */ 709/* 0x00000100 unused, was MCIF_MULTSTAT: MAIL11V3: handles MULT status */ 710#define MCIF_INHEADER 0x00000200 /* currently outputing header */ 711#define MCIF_CVT8TO7 0x00000400 /* convert from 8 to 7 bits */ 712#define MCIF_DSN 0x00000800 /* DSN extension supported */ 713#define MCIF_8BITOK 0x00001000 /* OK to send 8 bit characters */ 714#define MCIF_CVT7TO8 0x00002000 /* convert from 7 to 8 bits */ 715#define MCIF_INMIME 0x00004000 /* currently reading MIME header */ 716#define MCIF_AUTH 0x00008000 /* AUTH= supported */ 717#define MCIF_AUTHACT 0x00010000 /* SASL (AUTH) active */ 718#define MCIF_ENHSTAT 0x00020000 /* ENHANCEDSTATUSCODES supported */ 719#define MCIF_PIPELINED 0x00040000 /* PIPELINING supported */ 720#define MCIF_VERB 0x00080000 /* VERB supported */ 721#if STARTTLS 722#define MCIF_TLS 0x00100000 /* STARTTLS supported */ 723#define MCIF_TLSACT 0x00200000 /* STARTTLS active */ 724#define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT | MCIF_TLS) 725#else /* STARTTLS */ 726#define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT) 727#endif /* STARTTLS */ 728#define MCIF_DLVR_BY 0x00400000 /* DELIVERBY */ 729#if _FFR_IGNORE_EXT_ON_HELO 730# define MCIF_HELO 0x00800000 /* we used HELO: ignore extensions */ 731#endif /* _FFR_IGNORE_EXT_ON_HELO */ 732#define MCIF_INLONGLINE 0x01000000 /* in the middle of a long line */ 733#define MCIF_ONLY_EHLO 0x10000000 /* use only EHLO in smtpinit */ 734 735/* states */ 736#define MCIS_CLOSED 0 /* no traffic on this connection */ 737#define MCIS_OPENING 1 /* sending initial protocol */ 738#define MCIS_OPEN 2 /* open, initial protocol sent */ 739#define MCIS_MAIL 3 /* MAIL command sent */ 740#define MCIS_RCPT 4 /* RCPT commands being sent */ 741#define MCIS_DATA 5 /* DATA command sent */ 742#define MCIS_QUITING 6 /* running quit protocol */ 743#define MCIS_SSD 7 /* service shutting down */ 744#define MCIS_ERROR 8 /* I/O error on connection */ 745 746/* functions */ 747extern void mci_cache __P((MCI *)); 748extern void mci_close __P((MCI *, char *where)); 749extern void mci_dump __P((SM_FILE_T *, MCI *, bool)); 750extern void mci_dump_all __P((SM_FILE_T *, bool)); 751extern void mci_flush __P((bool, MCI *)); 752extern MCI *mci_get __P((char *, MAILER *)); 753extern int mci_lock_host __P((MCI *)); 754extern bool mci_match __P((char *, MAILER *)); 755extern int mci_print_persistent __P((char *, char *)); 756extern int mci_purge_persistent __P((char *, char *)); 757extern MCI **mci_scan __P((MCI *)); 758extern void mci_setstat __P((MCI *, int, char *, char *)); 759extern void mci_store_persistent __P((MCI *)); 760extern int mci_traverse_persistent __P((int (*)(char *, char *), char *)); 761extern void mci_unlock_host __P((MCI *)); 762 763EXTERN int MaxMciCache; /* maximum entries in MCI cache */ 764EXTERN time_t MciCacheTimeout; /* maximum idle time on connections */ 765EXTERN time_t MciInfoTimeout; /* how long 'til we retry down hosts */ 766 767/* 768** Header structure. 769** This structure is used internally to store header items. 770*/ 771 772struct header 773{ 774 char *h_field; /* the name of the field */ 775 char *h_value; /* the value of that field */ 776 struct header *h_link; /* the next header */ 777 unsigned char h_macro; /* include header if macro defined */ 778 unsigned long h_flags; /* status bits, see below */ 779 BITMAP256 h_mflags; /* m_flags bits needed */ 780}; 781 782typedef struct header HDR; 783 784/* 785** Header information structure. 786** Defined in conf.c, this struct declares the header fields 787** that have some magic meaning. 788*/ 789 790struct hdrinfo 791{ 792 char *hi_field; /* the name of the field */ 793 unsigned long hi_flags; /* status bits, see below */ 794 char *hi_ruleset; /* validity check ruleset */ 795}; 796 797extern struct hdrinfo HdrInfo[]; 798 799/* bits for h_flags and hi_flags */ 800#define H_EOH 0x00000001 /* field terminates header */ 801#define H_RCPT 0x00000002 /* contains recipient addresses */ 802#define H_DEFAULT 0x00000004 /* if another value is found, drop this */ 803#define H_RESENT 0x00000008 /* this address is a "Resent-..." address */ 804#define H_CHECK 0x00000010 /* check h_mflags against m_flags */ 805#define H_ACHECK 0x00000020 /* ditto, but always (not just default) */ 806#define H_FORCE 0x00000040 /* force this field, even if default */ 807#define H_TRACE 0x00000080 /* this field contains trace information */ 808#define H_FROM 0x00000100 /* this is a from-type field */ 809#define H_VALID 0x00000200 /* this field has a validated value */ 810#define H_RECEIPTTO 0x00000400 /* field has return receipt info */ 811#define H_ERRORSTO 0x00000800 /* field has error address info */ 812#define H_CTE 0x00001000 /* field is a content-transfer-encoding */ 813#define H_CTYPE 0x00002000 /* this is a content-type field */ 814#define H_BCC 0x00004000 /* Bcc: header: strip value or delete */ 815#define H_ENCODABLE 0x00008000 /* field can be RFC 1522 encoded */ 816#define H_STRIPCOMM 0x00010000 /* header check: strip comments */ 817#define H_BINDLATE 0x00020000 /* only expand macros at deliver */ 818#define H_USER 0x00040000 /* header came from the user/SMTP */ 819 820/* bits for chompheader() */ 821#define CHHDR_DEF 0x0001 /* default header */ 822#define CHHDR_CHECK 0x0002 /* call ruleset for header */ 823#define CHHDR_USER 0x0004 /* header from user */ 824#define CHHDR_QUEUE 0x0008 /* header from queue file */ 825 826/* functions */ 827extern void addheader __P((char *, char *, int, ENVELOPE *, bool)); 828extern unsigned long chompheader __P((char *, int, HDR **, ENVELOPE *)); 829extern bool commaize __P((HDR *, char *, bool, MCI *, ENVELOPE *, int)); 830extern HDR *copyheader __P((HDR *, SM_RPOOL_T *)); 831extern void eatheader __P((ENVELOPE *, bool, bool)); 832extern char *hvalue __P((char *, HDR *)); 833extern void insheader __P((int, char *, char *, int, ENVELOPE *, bool)); 834extern bool isheader __P((char *)); 835extern bool putfromline __P((MCI *, ENVELOPE *)); 836extern void setupheaders __P((void)); 837 838/* 839** Performance monitoring 840*/ 841 842#define TIMERS struct sm_timers 843 844TIMERS 845{ 846 TIMER ti_overall; /* the whole process */ 847}; 848 849 850#define PUSHTIMER(l, t) { if (tTd(98, l)) pushtimer(&t); } 851#define POPTIMER(l, t) { if (tTd(98, l)) poptimer(&t); } 852 853/* 854** Envelope structure. 855** This structure defines the message itself. There is usually 856** only one of these -- for the message that we originally read 857** and which is our primary interest -- but other envelopes can 858** be generated during processing. For example, error messages 859** will have their own envelope. 860*/ 861 862struct envelope 863{ 864 HDR *e_header; /* head of header list */ 865 long e_msgpriority; /* adjusted priority of this message */ 866 time_t e_ctime; /* time message appeared in the queue */ 867 char *e_to; /* (list of) target person(s) */ 868 ADDRESS e_from; /* the person it is from */ 869 char *e_sender; /* e_from.q_paddr w comments stripped */ 870 char **e_fromdomain; /* the domain part of the sender */ 871 ADDRESS *e_sendqueue; /* list of message recipients */ 872 ADDRESS *e_errorqueue; /* the queue for error responses */ 873 874 /* 875 ** Overflow detection is based on < 0, so don't change this 876 ** to unsigned. We don't use unsigned and == ULONG_MAX because 877 ** some libc's don't have strtoul(), see mail_esmtp_args(). 878 */ 879 880 long e_msgsize; /* size of the message in bytes */ 881 char *e_msgid; /* message id (for logging) */ 882 unsigned long e_flags; /* flags, see below */ 883 int e_nrcpts; /* number of recipients */ 884 short e_class; /* msg class (priority, junk, etc.) */ 885 short e_hopcount; /* number of times processed */ 886 short e_nsent; /* number of sends since checkpoint */ 887 short e_sendmode; /* message send mode */ 888 short e_errormode; /* error return mode */ 889 short e_timeoutclass; /* message timeout class */ 890 bool (*e_puthdr)__P((MCI *, HDR *, ENVELOPE *, int)); 891 /* function to put header of message */ 892 bool (*e_putbody)__P((MCI *, ENVELOPE *, char *)); 893 /* function to put body of message */ 894 ENVELOPE *e_parent; /* the message this one encloses */ 895 ENVELOPE *e_sibling; /* the next envelope of interest */ 896 char *e_bodytype; /* type of message body */ 897 SM_FILE_T *e_dfp; /* data file */ 898 char *e_id; /* code for this entry in queue */ 899#if _FFR_SESSID 900 char *e_sessid; /* session ID for this envelope */ 901#endif /* _FFR_SESSID */ 902 int e_qgrp; /* queue group (index into queues) */ 903 int e_qdir; /* index into queue directories */ 904 int e_dfqgrp; /* data file queue group index */ 905 int e_dfqdir; /* data file queue directory index */ 906 int e_xfqgrp; /* queue group (index into queues) */ 907 int e_xfqdir; /* index into queue directories (xf) */ 908 SM_FILE_T *e_xfp; /* transcript file */ 909 SM_FILE_T *e_lockfp; /* the lock file for this message */ 910 char *e_message; /* error message; readonly; NULL, 911 * or allocated from e_rpool */ 912 char *e_statmsg; /* stat msg (changes per delivery). 913 * readonly. NULL or allocated from 914 * e_rpool. */ 915 char *e_quarmsg; /* why envelope is quarantined */ 916 char e_qfletter; /* queue file letter on disk */ 917 char *e_msgboundary; /* MIME-style message part boundary */ 918 char *e_origrcpt; /* original recipient (one only) */ 919 char *e_envid; /* envelope id from MAIL FROM: line */ 920 char *e_status; /* DSN status for this message */ 921 time_t e_dtime; /* time of last delivery attempt */ 922 int e_ntries; /* number of delivery attempts */ 923 dev_t e_dfdev; /* data file device (crash recovery) */ 924 ino_t e_dfino; /* data file inode (crash recovery) */ 925 MACROS_T e_macro; /* macro definitions */ 926 MCI *e_mci; /* connection info */ 927 char *e_auth_param; /* readonly; NULL or static storage or 928 * allocated from e_rpool */ 929 TIMERS e_timers; /* per job timers */ 930 long e_deliver_by; /* deliver by */ 931 int e_dlvr_flag; /* deliver by flag */ 932 SM_RPOOL_T *e_rpool; /* resource pool for this envelope */ 933 unsigned int e_features; /* server features */ 934}; 935 936/* values for e_flags */ 937#define EF_OLDSTYLE 0x00000001L /* use spaces (not commas) in hdrs */ 938#define EF_INQUEUE 0x00000002L /* this message is fully queued */ 939#define EF_NO_BODY_RETN 0x00000004L /* omit message body on error */ 940#define EF_CLRQUEUE 0x00000008L /* disk copy is no longer needed */ 941#define EF_SENDRECEIPT 0x00000010L /* send a return receipt */ 942#define EF_FATALERRS 0x00000020L /* fatal errors occurred */ 943#define EF_DELETE_BCC 0x00000040L /* delete Bcc: headers entirely */ 944#define EF_RESPONSE 0x00000080L /* this is an error or return receipt */ 945#define EF_RESENT 0x00000100L /* this message is being forwarded */ 946#define EF_VRFYONLY 0x00000200L /* verify only (don't expand aliases) */ 947#define EF_WARNING 0x00000400L /* warning message has been sent */ 948#define EF_QUEUERUN 0x00000800L /* this envelope is from queue */ 949#define EF_GLOBALERRS 0x00001000L /* treat errors as global */ 950#define EF_PM_NOTIFY 0x00002000L /* send return mail to postmaster */ 951#define EF_METOO 0x00004000L /* send to me too */ 952#define EF_LOGSENDER 0x00008000L /* need to log the sender */ 953#define EF_NORECEIPT 0x00010000L /* suppress all return-receipts */ 954#define EF_HAS8BIT 0x00020000L /* at least one 8-bit char in body */ 955#define EF_NL_NOT_EOL 0x00040000L /* don't accept raw NL as EOLine */ 956#define EF_CRLF_NOT_EOL 0x00080000L /* don't accept CR-LF as EOLine */ 957#define EF_RET_PARAM 0x00100000L /* RCPT command had RET argument */ 958#define EF_HAS_DF 0x00200000L /* set when data file is instantiated */ 959#define EF_IS_MIME 0x00400000L /* really is a MIME message */ 960#define EF_DONT_MIME 0x00800000L /* never MIME this message */ 961#define EF_DISCARD 0x01000000L /* discard the message */ 962#define EF_TOOBIG 0x02000000L /* message is too big */ 963#define EF_SPLIT 0x04000000L /* envelope has been split */ 964#define EF_UNSAFE 0x08000000L /* unsafe: read from untrusted source */ 965#define EF_TOODEEP 0x10000000L /* message is nested too deep */ 966 967#define DLVR_NOTIFY 0x01 968#define DLVR_RETURN 0x02 969#define DLVR_TRACE 0x10 970#define IS_DLVR_NOTIFY(e) (((e)->e_dlvr_flag & DLVR_NOTIFY) != 0) 971#define IS_DLVR_RETURN(e) (((e)->e_dlvr_flag & DLVR_RETURN) != 0) 972#define IS_DLVR_TRACE(e) (((e)->e_dlvr_flag & DLVR_TRACE) != 0) 973#define IS_DLVR_BY(e) ((e)->e_dlvr_flag != 0) 974 975#define BODYTYPE_NONE (0) 976#define BODYTYPE_7BIT (1) 977#define BODYTYPE_8BITMIME (2) 978#define BODYTYPE_ILLEGAL (-1) 979#define BODYTYPE_VALID(b) ((b) == BODYTYPE_7BIT || (b) == BODYTYPE_8BITMIME) 980 981extern ENVELOPE BlankEnvelope; 982 983/* functions */ 984extern void clearenvelope __P((ENVELOPE *, bool, SM_RPOOL_T *)); 985extern void dropenvelope __P((ENVELOPE *, bool, bool)); 986extern ENVELOPE *newenvelope __P((ENVELOPE *, ENVELOPE *, SM_RPOOL_T *)); 987extern void clrsessenvelope __P((ENVELOPE *)); 988extern void printenvflags __P((ENVELOPE *)); 989extern bool putbody __P((MCI *, ENVELOPE *, char *)); 990extern bool putheader __P((MCI *, HDR *, ENVELOPE *, int)); 991 992/* 993** Message priority classes. 994** 995** The message class is read directly from the Priority: header 996** field in the message. 997** 998** CurEnv->e_msgpriority is the number of bytes in the message plus 999** the creation time (so that jobs ``tend'' to be ordered correctly), 1000** adjusted by the message class, the number of recipients, and the 1001** amount of time the message has been sitting around. This number 1002** is used to order the queue. Higher values mean LOWER priority. 1003** 1004** Each priority class point is worth WkClassFact priority points; 1005** each recipient is worth WkRecipFact priority points. Each time 1006** we reprocess a message the priority is adjusted by WkTimeFact. 1007** WkTimeFact should normally decrease the priority so that jobs 1008** that have historically failed will be run later; thanks go to 1009** Jay Lepreau at Utah for pointing out the error in my thinking. 1010** 1011** The "class" is this number, unadjusted by the age or size of 1012** this message. Classes with negative representations will have 1013** error messages thrown away if they are not local. 1014*/ 1015 1016struct priority 1017{ 1018 char *pri_name; /* external name of priority */ 1019 int pri_val; /* internal value for same */ 1020}; 1021 1022EXTERN int NumPriorities; /* pointer into Priorities */ 1023EXTERN struct priority Priorities[MAXPRIORITIES]; 1024 1025/* 1026** Rewrite rules. 1027*/ 1028 1029struct rewrite 1030{ 1031 char **r_lhs; /* pattern match */ 1032 char **r_rhs; /* substitution value */ 1033 struct rewrite *r_next;/* next in chain */ 1034 int r_line; /* rule line in sendmail.cf */ 1035}; 1036 1037/* 1038** Special characters in rewriting rules. 1039** These are used internally only. 1040** The COND* rules are actually used in macros rather than in 1041** rewriting rules, but are given here because they 1042** cannot conflict. 1043*/ 1044 1045/* "out of band" indicator */ 1046/* sm/sendmail.h #define METAQUOTE ((unsigned char)0377) quotes the next octet */ 1047 1048/* left hand side items */ 1049#define MATCHZANY ((unsigned char)0220) /* match zero or more tokens */ 1050#define MATCHANY ((unsigned char)0221) /* match one or more tokens */ 1051#define MATCHONE ((unsigned char)0222) /* match exactly one token */ 1052#define MATCHCLASS ((unsigned char)0223) /* match one token in a class */ 1053#define MATCHNCLASS ((unsigned char)0224) /* match tokens not in class */ 1054 1055/* right hand side items */ 1056#define MATCHREPL ((unsigned char)0225) /* RHS replacement for above */ 1057#define CANONNET ((unsigned char)0226) /* canonical net, next token */ 1058#define CANONHOST ((unsigned char)0227) /* canonical host, next token */ 1059#define CANONUSER ((unsigned char)0230) /* canonical user, next N tokens */ 1060#define CALLSUBR ((unsigned char)0231) /* call another rewriting set */ 1061 1062/* conditionals in macros (anywhere) */ 1063#define CONDIF ((unsigned char)0232) /* conditional if-then */ 1064#define CONDELSE ((unsigned char)0233) /* conditional else */ 1065#define CONDFI ((unsigned char)0234) /* conditional fi */ 1066 1067/* bracket characters for RHS host name lookup */ 1068#define HOSTBEGIN ((unsigned char)0235) /* hostname lookup begin */ 1069#define HOSTEND ((unsigned char)0236) /* hostname lookup end */ 1070 1071/* bracket characters for RHS generalized lookup */ 1072#define LOOKUPBEGIN ((unsigned char)0205) /* generalized lookup begin */ 1073#define LOOKUPEND ((unsigned char)0206) /* generalized lookup end */ 1074 1075/* macro substitution characters (anywhere) */ 1076#define MACROEXPAND ((unsigned char)0201) /* macro expansion */ 1077#define MACRODEXPAND ((unsigned char)0202) /* deferred macro expansion */ 1078 1079/* to make the code clearer */ 1080#define MATCHZERO CANONHOST 1081 1082#define MAXMATCH 9 /* max params per rewrite */ 1083#define MAX_MAP_ARGS 10 /* max arguments for map */ 1084 1085/* external <==> internal mapping table */ 1086struct metamac 1087{ 1088 char metaname; /* external code (after $) */ 1089 unsigned char metaval; /* internal code (as above) */ 1090}; 1091 1092/* values for macros with external names only */ 1093#define MID_OPMODE 0202 /* operation mode */ 1094 1095/* functions */ 1096#if SM_HEAP_CHECK 1097extern void 1098macdefine_tagged __P(( 1099 MACROS_T *_mac, 1100 ARGCLASS_T _vclass, 1101 int _id, 1102 char *_value, 1103 char *_file, 1104 int _line, 1105 int _group)); 1106# define macdefine(mac,c,id,v) \ 1107 macdefine_tagged(mac,c,id,v,__FILE__,__LINE__,sm_heap_group()) 1108#else /* SM_HEAP_CHECK */ 1109extern void 1110macdefine __P(( 1111 MACROS_T *_mac, 1112 ARGCLASS_T _vclass, 1113 int _id, 1114 char *_value)); 1115# define macdefine_tagged(mac,c,id,v,file,line,grp) macdefine(mac,c,id,v) 1116#endif /* SM_HEAP_CHECK */ 1117extern void macset __P((MACROS_T *, int, char *)); 1118#define macget(mac, i) (mac)->mac_table[i] 1119extern void expand __P((char *, char *, size_t, ENVELOPE *)); 1120extern int macid_parse __P((char *, char **)); 1121#define macid(name) macid_parse(name, NULL) 1122extern char *macname __P((int)); 1123extern char *macvalue __P((int, ENVELOPE *)); 1124extern int rscheck __P((char *, char *, char *, ENVELOPE *, int, int, char *, char *, ADDRESS *)); 1125extern int rscap __P((char *, char *, char *, ENVELOPE *, char ***, char *, int)); 1126extern void setclass __P((int, char *)); 1127extern int strtorwset __P((char *, char **, int)); 1128extern char *translate_dollars __P((char *, char *, int *)); 1129extern bool wordinclass __P((char *, int)); 1130 1131/* 1132** Name canonification short circuit. 1133** 1134** If the name server for a host is down, the process of trying to 1135** canonify the name can hang. This is similar to (but alas, not 1136** identical to) looking up the name for delivery. This stab type 1137** caches the result of the name server lookup so we don't hang 1138** multiple times. 1139*/ 1140 1141#define NAMECANON struct _namecanon 1142 1143NAMECANON 1144{ 1145 short nc_errno; /* cached errno */ 1146 short nc_herrno; /* cached h_errno */ 1147 short nc_stat; /* cached exit status code */ 1148 short nc_flags; /* flag bits */ 1149 char *nc_cname; /* the canonical name */ 1150 time_t nc_exp; /* entry expires at */ 1151}; 1152 1153/* values for nc_flags */ 1154#define NCF_VALID 0x0001 /* entry valid */ 1155 1156/* hostsignature structure */ 1157 1158struct hostsig_t 1159{ 1160 char *hs_sig; /* hostsignature */ 1161 time_t hs_exp; /* entry expires at */ 1162}; 1163 1164typedef struct hostsig_t HOSTSIG_T; 1165 1166/* functions */ 1167extern bool getcanonname __P((char *, int, bool, int *)); 1168extern int getmxrr __P((char *, char **, unsigned short *, bool, int *, bool, int *)); 1169extern char *hostsignature __P((MAILER *, char *)); 1170extern int getfallbackmxrr __P((char *)); 1171 1172/* 1173** Mapping functions 1174** 1175** These allow arbitrary mappings in the config file. The idea 1176** (albeit not the implementation) comes from IDA sendmail. 1177*/ 1178 1179#define MAPCLASS struct _mapclass 1180#define MAP struct _map 1181#define MAXMAPACTIONS 5 /* size of map_actions array */ 1182 1183 1184/* 1185** An actual map. 1186*/ 1187 1188MAP 1189{ 1190 MAPCLASS *map_class; /* the class of this map */ 1191 MAPCLASS *map_orgclass; /* the original class of this map */ 1192 char *map_mname; /* name of this map */ 1193 long map_mflags; /* flags, see below */ 1194 char *map_file; /* the (nominal) filename */ 1195 ARBPTR_T map_db1; /* the open database ptr */ 1196 ARBPTR_T map_db2; /* an "extra" database pointer */ 1197 char *map_keycolnm; /* key column name */ 1198 char *map_valcolnm; /* value column name */ 1199 unsigned char map_keycolno; /* key column number */ 1200 unsigned char map_valcolno; /* value column number */ 1201 char map_coldelim; /* column delimiter */ 1202 char map_spacesub; /* spacesub */ 1203 char *map_app; /* to append to successful matches */ 1204 char *map_tapp; /* to append to "tempfail" matches */ 1205 char *map_domain; /* the (nominal) NIS domain */ 1206 char *map_rebuild; /* program to run to do auto-rebuild */ 1207 time_t map_mtime; /* last database modification time */ 1208 time_t map_timeout; /* timeout for map accesses */ 1209 int map_retry; /* # of retries for map accesses */ 1210 pid_t map_pid; /* PID of process which opened map */ 1211 int map_lockfd; /* auxiliary lock file descriptor */ 1212 short map_specificity; /* specificity of aliases */ 1213 MAP *map_stack[MAXMAPSTACK]; /* list for stacked maps */ 1214 short map_return[MAXMAPACTIONS]; /* return bitmaps for stacked maps */ 1215}; 1216 1217 1218/* bit values for map_mflags */ 1219#define MF_VALID 0x00000001 /* this entry is valid */ 1220#define MF_INCLNULL 0x00000002 /* include null byte in key */ 1221#define MF_OPTIONAL 0x00000004 /* don't complain if map not found */ 1222#define MF_NOFOLDCASE 0x00000008 /* don't fold case in keys */ 1223#define MF_MATCHONLY 0x00000010 /* don't use the map value */ 1224#define MF_OPEN 0x00000020 /* this entry is open */ 1225#define MF_WRITABLE 0x00000040 /* open for writing */ 1226#define MF_ALIAS 0x00000080 /* this is an alias file */ 1227#define MF_TRY0NULL 0x00000100 /* try with no null byte */ 1228#define MF_TRY1NULL 0x00000200 /* try with the null byte */ 1229#define MF_LOCKED 0x00000400 /* this map is currently locked */ 1230#define MF_ALIASWAIT 0x00000800 /* alias map in aliaswait state */ 1231#define MF_IMPL_HASH 0x00001000 /* implicit: underlying hash database */ 1232#define MF_IMPL_NDBM 0x00002000 /* implicit: underlying NDBM database */ 1233/* 0x00004000 */ 1234#define MF_APPEND 0x00008000 /* append new entry on rebuild */ 1235#define MF_KEEPQUOTES 0x00010000 /* don't dequote key before lookup */ 1236#define MF_NODEFER 0x00020000 /* don't defer if map lookup fails */ 1237#define MF_REGEX_NOT 0x00040000 /* regular expression negation */ 1238#define MF_DEFER 0x00080000 /* don't lookup map in defer mode */ 1239#define MF_SINGLEMATCH 0x00100000 /* successful only if match one key */ 1240#define MF_SINGLEDN 0x00200000 /* only one match, but multi values */ 1241#define MF_FILECLASS 0x00400000 /* this is a file class map */ 1242#define MF_OPENBOGUS 0x00800000 /* open failed, don't call map_close */ 1243#define MF_CLOSING 0x01000000 /* map is being closed */ 1244 1245#define DYNOPENMAP(map) if (!bitset(MF_OPEN, (map)->map_mflags)) \ 1246 { \ 1247 if (!openmap(map)) \ 1248 return NULL; \ 1249 } 1250 1251 1252/* indices for map_actions */ 1253#define MA_NOTFOUND 0 /* member map returned "not found" */ 1254#define MA_UNAVAIL 1 /* member map is not available */ 1255#define MA_TRYAGAIN 2 /* member map returns temp failure */ 1256 1257/* macros to handle MapTempFail */ 1258#define BIT_IS_MTP 0x01 /* temp.failure occurred */ 1259#define BIT_ASK_MTP 0x02 /* do we care about MapTempFail? */ 1260#define RESET_MAPTEMPFAIL MapTempFail = 0 1261#define INIT_MAPTEMPFAIL MapTempFail = BIT_ASK_MTP 1262#define SET_MAPTEMPFAIL MapTempFail |= BIT_IS_MTP 1263#define IS_MAPTEMPFAIL bitset(BIT_IS_MTP, MapTempFail) 1264#define ASK_MAPTEMPFAIL bitset(BIT_ASK_MTP, MapTempFail) 1265 1266/* 1267** The class of a map -- essentially the functions to call 1268*/ 1269 1270MAPCLASS 1271{ 1272 char *map_cname; /* name of this map class */ 1273 char *map_ext; /* extension for database file */ 1274 short map_cflags; /* flag bits, see below */ 1275 bool (*map_parse)__P((MAP *, char *)); 1276 /* argument parsing function */ 1277 char *(*map_lookup)__P((MAP *, char *, char **, int *)); 1278 /* lookup function */ 1279 void (*map_store)__P((MAP *, char *, char *)); 1280 /* store function */ 1281 bool (*map_open)__P((MAP *, int)); 1282 /* open function */ 1283 void (*map_close)__P((MAP *)); 1284 /* close function */ 1285}; 1286 1287/* bit values for map_cflags */ 1288#define MCF_ALIASOK 0x0001 /* can be used for aliases */ 1289#define MCF_ALIASONLY 0x0002 /* usable only for aliases */ 1290#define MCF_REBUILDABLE 0x0004 /* can rebuild alias files */ 1291#define MCF_OPTFILE 0x0008 /* file name is optional */ 1292#define MCF_NOTPERSIST 0x0010 /* don't keep map open all the time */ 1293 1294/* functions */ 1295extern void closemaps __P((bool)); 1296extern bool impl_map_open __P((MAP *, int)); 1297extern void initmaps __P((void)); 1298extern MAP *makemapentry __P((char *)); 1299extern void maplocaluser __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1300extern char *map_rewrite __P((MAP *, const char *, size_t, char **)); 1301#if NETINFO 1302extern char *ni_propval __P((char *, char *, char *, char *, int)); 1303#endif /* NETINFO */ 1304extern bool openmap __P((MAP *)); 1305extern int udbexpand __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1306#if USERDB 1307extern void _udbx_close __P((void)); 1308extern char *udbsender __P((char *, SM_RPOOL_T *)); 1309#endif /* USERDB */ 1310 1311/* 1312** LDAP related items 1313*/ 1314#if LDAPMAP 1315/* struct defining LDAP Auth Methods */ 1316struct lamvalues 1317{ 1318 char *lam_name; /* name of LDAP auth method */ 1319 int lam_code; /* numeric code */ 1320}; 1321 1322/* struct defining LDAP Alias Dereferencing */ 1323struct ladvalues 1324{ 1325 char *lad_name; /* name of LDAP alias dereferencing method */ 1326 int lad_code; /* numeric code */ 1327}; 1328 1329/* struct defining LDAP Search Scope */ 1330struct lssvalues 1331{ 1332 char *lss_name; /* name of LDAP search scope */ 1333 int lss_code; /* numeric code */ 1334}; 1335 1336/* functions */ 1337extern bool ldapmap_parseargs __P((MAP *, char *)); 1338extern void ldapmap_set_defaults __P((char *)); 1339#endif /* LDAPMAP */ 1340 1341/* 1342** PH related items 1343*/ 1344 1345#if PH_MAP 1346 1347# include <phclient.h> 1348 1349struct ph_map_struct 1350{ 1351 char *ph_servers; /* list of ph servers */ 1352 char *ph_field_list; /* list of fields to search for match */ 1353 PH *ph; /* PH server handle */ 1354 int ph_fastclose; /* send "quit" command on close */ 1355 time_t ph_timeout; /* timeout interval */ 1356}; 1357typedef struct ph_map_struct PH_MAP_STRUCT; 1358 1359#endif /* PH_MAP */ 1360 1361/* 1362** Regular UNIX sockaddrs are too small to handle ISO addresses, so 1363** we are forced to declare a supertype here. 1364*/ 1365 1366#if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 1367union bigsockaddr 1368{ 1369 struct sockaddr sa; /* general version */ 1370# if NETUNIX 1371 struct sockaddr_un sunix; /* UNIX family */ 1372# endif /* NETUNIX */ 1373# if NETINET 1374 struct sockaddr_in sin; /* INET family */ 1375# endif /* NETINET */ 1376# if NETINET6 1377 struct sockaddr_in6 sin6; /* INET/IPv6 */ 1378# endif /* NETINET6 */ 1379# if NETISO 1380 struct sockaddr_iso siso; /* ISO family */ 1381# endif /* NETISO */ 1382# if NETNS 1383 struct sockaddr_ns sns; /* XNS family */ 1384# endif /* NETNS */ 1385# if NETX25 1386 struct sockaddr_x25 sx25; /* X.25 family */ 1387# endif /* NETX25 */ 1388}; 1389 1390# define SOCKADDR union bigsockaddr 1391 1392/* functions */ 1393extern char *anynet_ntoa __P((SOCKADDR *)); 1394# if NETINET6 1395extern char *anynet_ntop __P((struct in6_addr *, char *, size_t)); 1396extern int anynet_pton __P((int, const char *, void *)); 1397# endif /* NETINET6 */ 1398extern char *hostnamebyanyaddr __P((SOCKADDR *)); 1399extern char *validate_connection __P((SOCKADDR *, char *, ENVELOPE *)); 1400# if SASL >= 20000 1401extern bool iptostring __P((SOCKADDR *, SOCKADDR_LEN_T, char *, unsigned)); 1402# endif /* SASL >= 20000 */ 1403 1404#endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */ 1405 1406/* 1407** Process List (proclist) 1408*/ 1409 1410#define NO_PID ((pid_t) 0) 1411#ifndef PROC_LIST_SEG 1412# define PROC_LIST_SEG 32 /* number of pids to alloc at a time */ 1413#endif /* ! PROC_LIST_SEG */ 1414 1415/* process types */ 1416#define PROC_NONE 0 1417#define PROC_DAEMON 1 1418#define PROC_DAEMON_CHILD 2 1419#define PROC_QUEUE 3 1420#define PROC_QUEUE_CHILD 3 1421#define PROC_CONTROL 4 1422#define PROC_CONTROL_CHILD 5 1423 1424/* functions */ 1425extern void proc_list_add __P((pid_t, char *, int, int, int, SOCKADDR *)); 1426extern void proc_list_clear __P((void)); 1427extern void proc_list_display __P((SM_FILE_T *, char *)); 1428extern void proc_list_drop __P((pid_t, int, int *)); 1429extern void proc_list_probe __P((void)); 1430extern void proc_list_set __P((pid_t, char *)); 1431extern void proc_list_signal __P((int, int)); 1432 1433/* 1434** Symbol table definitions 1435*/ 1436 1437struct symtab 1438{ 1439 char *s_name; /* name to be entered */ 1440 short s_symtype; /* general type (see below) */ 1441 struct symtab *s_next; /* pointer to next in chain */ 1442 union 1443 { 1444 BITMAP256 sv_class; /* bit-map of word classes */ 1445 ADDRESS *sv_addr; /* pointer to address header */ 1446 MAILER *sv_mailer; /* pointer to mailer */ 1447 char *sv_alias; /* alias */ 1448 MAPCLASS sv_mapclass; /* mapping function class */ 1449 MAP sv_map; /* mapping function */ 1450 HOSTSIG_T sv_hostsig; /* host signature */ 1451 MCI sv_mci; /* mailer connection info */ 1452 NAMECANON sv_namecanon; /* canonical name cache */ 1453 int sv_macro; /* macro name => id mapping */ 1454 int sv_ruleset; /* ruleset index */ 1455 struct hdrinfo sv_header; /* header metainfo */ 1456 char *sv_service[MAXMAPSTACK]; /* service switch */ 1457#if LDAPMAP 1458 MAP *sv_lmap; /* Maps for LDAP connection */ 1459#endif /* LDAPMAP */ 1460#if SOCKETMAP 1461 MAP *sv_socketmap; /* Maps for SOCKET connection */ 1462#endif /* SOCKETMAP */ 1463#if MILTER 1464 struct milter *sv_milter; /* milter filter name */ 1465#endif /* MILTER */ 1466 QUEUEGRP *sv_queue; /* pointer to queue */ 1467 } s_value; 1468}; 1469 1470typedef struct symtab STAB; 1471 1472/* symbol types */ 1473#define ST_UNDEF 0 /* undefined type */ 1474#define ST_CLASS 1 /* class map */ 1475#define ST_ADDRESS 2 /* an address in parsed format */ 1476#define ST_MAILER 3 /* a mailer header */ 1477#define ST_ALIAS 4 /* an alias */ 1478#define ST_MAPCLASS 5 /* mapping function class */ 1479#define ST_MAP 6 /* mapping function */ 1480#define ST_HOSTSIG 7 /* host signature */ 1481#define ST_NAMECANON 8 /* cached canonical name */ 1482#define ST_MACRO 9 /* macro name to id mapping */ 1483#define ST_RULESET 10 /* ruleset index */ 1484#define ST_SERVICE 11 /* service switch entry */ 1485#define ST_HEADER 12 /* special header flags */ 1486#if LDAPMAP 1487# define ST_LMAP 13 /* List head of maps for LDAP connection */ 1488#endif /* LDAPMAP */ 1489#if MILTER 1490# define ST_MILTER 14 /* milter filter */ 1491#endif /* MILTER */ 1492#define ST_QUEUE 15 /* a queue entry */ 1493 1494#if SOCKETMAP 1495# define ST_SOCKETMAP 16 /* List head of maps for SOCKET connection */ 1496#endif /* SOCKETMAP */ 1497 1498/* This entry must be last */ 1499#define ST_MCI 17 /* mailer connection info (offset) */ 1500 1501#define s_class s_value.sv_class 1502#define s_address s_value.sv_addr 1503#define s_mailer s_value.sv_mailer 1504#define s_alias s_value.sv_alias 1505#define s_mci s_value.sv_mci 1506#define s_mapclass s_value.sv_mapclass 1507#define s_hostsig s_value.sv_hostsig 1508#define s_map s_value.sv_map 1509#define s_namecanon s_value.sv_namecanon 1510#define s_macro s_value.sv_macro 1511#define s_ruleset s_value.sv_ruleset 1512#define s_service s_value.sv_service 1513#define s_header s_value.sv_header 1514#if LDAPMAP 1515# define s_lmap s_value.sv_lmap 1516#endif /* LDAPMAP */ 1517#if SOCKETMAP 1518# define s_socketmap s_value.sv_socketmap 1519#endif /* SOCKETMAP */ 1520#if MILTER 1521# define s_milter s_value.sv_milter 1522#endif /* MILTER */ 1523#define s_quegrp s_value.sv_queue 1524 1525/* opcodes to stab */ 1526#define ST_FIND 0 /* find entry */ 1527#define ST_ENTER 1 /* enter if not there */ 1528 1529/* functions */ 1530extern STAB *stab __P((char *, int, int)); 1531extern void stabapply __P((void (*)(STAB *, int), int)); 1532 1533/* 1534** Operation, send, error, and MIME modes 1535** 1536** The operation mode describes the basic operation of sendmail. 1537** This can be set from the command line, and is "send mail" by 1538** default. 1539** 1540** The send mode tells how to send mail. It can be set in the 1541** configuration file. Its setting determines how quickly the 1542** mail will be delivered versus the load on your system. If the 1543** -v (verbose) flag is given, it will be forced to SM_DELIVER 1544** mode. 1545** 1546** The error mode tells how to return errors. 1547*/ 1548 1549#define MD_DELIVER 'm' /* be a mail sender */ 1550#define MD_SMTP 's' /* run SMTP on standard input */ 1551#define MD_ARPAFTP 'a' /* obsolete ARPANET mode (Grey Book) */ 1552#define MD_DAEMON 'd' /* run as a daemon */ 1553#define MD_FGDAEMON 'D' /* run daemon in foreground */ 1554#define MD_LOCAL 'l' /* like daemon, but localhost only */ 1555#define MD_VERIFY 'v' /* verify: don't collect or deliver */ 1556#define MD_TEST 't' /* test mode: resolve addrs only */ 1557#define MD_INITALIAS 'i' /* initialize alias database */ 1558#define MD_PRINT 'p' /* print the queue */ 1559#define MD_PRINTNQE 'P' /* print number of entries in queue */ 1560#define MD_FREEZE 'z' /* freeze the configuration file */ 1561#define MD_HOSTSTAT 'h' /* print persistent host stat info */ 1562#define MD_PURGESTAT 'H' /* purge persistent host stat info */ 1563#define MD_QUEUERUN 'q' /* queue run */ 1564 1565#if _FFR_LOCAL_DAEMON 1566EXTERN bool LocalDaemon; 1567#else /* _FFR_LOCAL_DAEMON */ 1568# define LocalDaemon false 1569#endif /* _FFR_LOCAL_DAEMON */ 1570 1571/* Note: see also include/sendmail/pathnames.h: GET_CLIENT_CF */ 1572 1573/* values for e_sendmode -- send modes */ 1574#define SM_DELIVER 'i' /* interactive delivery */ 1575#define SM_FORK 'b' /* deliver in background */ 1576#if _FFR_DM_ONE 1577#define SM_DM_ONE 'o' /* deliver first TA in background, then queue */ 1578#endif /* _FFR_DM_ONE */ 1579#define SM_QUEUE 'q' /* queue, don't deliver */ 1580#define SM_DEFER 'd' /* defer map lookups as well as queue */ 1581#define SM_VERIFY 'v' /* verify only (used internally) */ 1582#define DM_NOTSET (-1) /* DeliveryMode (per daemon) option not set */ 1583 1584#define WILL_BE_QUEUED(m) ((m) == SM_QUEUE || (m) == SM_DEFER) 1585 1586/* used only as a parameter to sendall */ 1587#define SM_DEFAULT '\0' /* unspecified, use SendMode */ 1588 1589/* functions */ 1590extern void set_delivery_mode __P((int, ENVELOPE *)); 1591 1592/* values for e_errormode -- error handling modes */ 1593#define EM_PRINT 'p' /* print errors */ 1594#define EM_MAIL 'm' /* mail back errors */ 1595#define EM_WRITE 'w' /* write back errors */ 1596#define EM_BERKNET 'e' /* special berknet processing */ 1597#define EM_QUIET 'q' /* don't print messages (stat only) */ 1598 1599 1600/* bit values for MimeMode */ 1601#define MM_CVTMIME 0x0001 /* convert 8 to 7 bit MIME */ 1602#define MM_PASS8BIT 0x0002 /* just send 8 bit data blind */ 1603#define MM_MIME8BIT 0x0004 /* convert 8-bit data to MIME */ 1604 1605 1606/* how to handle messages without any recipient addresses */ 1607#define NRA_NO_ACTION 0 /* just leave it as is */ 1608#define NRA_ADD_TO 1 /* add To: header */ 1609#define NRA_ADD_APPARENTLY_TO 2 /* add Apparently-To: header */ 1610#define NRA_ADD_BCC 3 /* add empty Bcc: header */ 1611#define NRA_ADD_TO_UNDISCLOSED 4 /* add To: undisclosed:; header */ 1612 1613 1614/* flags to putxline */ 1615#define PXLF_NOTHINGSPECIAL 0 /* no special mapping */ 1616#define PXLF_MAPFROM 0x0001 /* map From_ to >From_ */ 1617#define PXLF_STRIP8BIT 0x0002 /* strip 8th bit */ 1618#define PXLF_HEADER 0x0004 /* map newlines in headers */ 1619#define PXLF_NOADDEOL 0x0008 /* if EOL not present, don't add one */ 1620#define PXLF_STRIPMQUOTE 0x0010 /* strip METAQUOTEs */ 1621 1622/* 1623** Privacy flags 1624** These are bit values for the PrivacyFlags word. 1625*/ 1626 1627#define PRIV_PUBLIC 0 /* what have I got to hide? */ 1628#define PRIV_NEEDMAILHELO 0x00000001 /* insist on HELO for MAIL */ 1629#define PRIV_NEEDEXPNHELO 0x00000002 /* insist on HELO for EXPN */ 1630#define PRIV_NEEDVRFYHELO 0x00000004 /* insist on HELO for VRFY */ 1631#define PRIV_NOEXPN 0x00000008 /* disallow EXPN command */ 1632#define PRIV_NOVRFY 0x00000010 /* disallow VRFY command */ 1633#define PRIV_AUTHWARNINGS 0x00000020 /* flag possible auth probs */ 1634#define PRIV_NOVERB 0x00000040 /* disallow VERB command */ 1635#define PRIV_RESTRICTMAILQ 0x00010000 /* restrict mailq command */ 1636#define PRIV_RESTRICTQRUN 0x00020000 /* restrict queue run */ 1637#define PRIV_RESTRICTEXPAND 0x00040000 /* restrict alias/forward expansion */ 1638#define PRIV_NOETRN 0x00080000 /* disallow ETRN command */ 1639#define PRIV_NOBODYRETN 0x00100000 /* do not return bodies on bounces */ 1640#define PRIV_NORECEIPTS 0x00200000 /* disallow return receipts */ 1641#define PRIV_NOACTUALRECIPIENT 0x00400000 /* no X-Actual-Recipient in DSNs */ 1642 1643/* don't give no info, anyway, anyhow (in the main SMTP transaction) */ 1644#define PRIV_GOAWAY 0x0000ffff 1645 1646/* struct defining such things */ 1647struct prival 1648{ 1649 char *pv_name; /* name of privacy flag */ 1650 unsigned long pv_flag; /* numeric level */ 1651}; 1652 1653EXTERN unsigned long PrivacyFlags; /* privacy flags */ 1654 1655 1656/* 1657** Flags passed to remotename, parseaddr, allocaddr, and buildaddr. 1658*/ 1659 1660#define RF_SENDERADDR 0x001 /* this is a sender address */ 1661#define RF_HEADERADDR 0x002 /* this is a header address */ 1662#define RF_CANONICAL 0x004 /* strip comment information */ 1663#define RF_ADDDOMAIN 0x008 /* OK to do domain extension */ 1664#define RF_COPYPARSE 0x010 /* copy parsed user & host */ 1665#define RF_COPYPADDR 0x020 /* copy print address */ 1666#define RF_COPYALL (RF_COPYPARSE|RF_COPYPADDR) 1667#define RF_COPYNONE 0 1668#define RF_RM_ADDR 0x040 /* address to be removed */ 1669 1670/* 1671** Flags passed to rscheck 1672*/ 1673 1674#define RSF_RMCOMM 0x0001 /* strip comments */ 1675#define RSF_UNSTRUCTURED 0x0002 /* unstructured, ignore syntax errors */ 1676#define RSF_COUNT 0x0004 /* count rejections (statistics)? */ 1677 1678/* 1679** Flags passed to mime8to7 and putheader. 1680*/ 1681 1682#define M87F_OUTER 0 /* outer context */ 1683#define M87F_NO8BIT 0x0001 /* can't have 8-bit in this section */ 1684#define M87F_DIGEST 0x0002 /* processing multipart/digest */ 1685#define M87F_NO8TO7 0x0004 /* don't do 8->7 bit conversions */ 1686 1687/* functions */ 1688extern bool mime7to8 __P((MCI *, HDR *, ENVELOPE *)); 1689extern int mime8to7 __P((MCI *, HDR *, ENVELOPE *, char **, int, int)); 1690 1691/* 1692** Flags passed to returntosender. 1693*/ 1694 1695#define RTSF_NO_BODY 0 /* send headers only */ 1696#define RTSF_SEND_BODY 0x0001 /* include body of message in return */ 1697#define RTSF_PM_BOUNCE 0x0002 /* this is a postmaster bounce */ 1698 1699/* functions */ 1700extern int returntosender __P((char *, ADDRESS *, int, ENVELOPE *)); 1701 1702/* 1703** Mail Filters (milter) 1704*/ 1705 1706/* 1707** 32-bit type used by milter 1708** (needed by libmilter even if MILTER isn't defined) 1709*/ 1710 1711typedef SM_INT32 mi_int32; 1712 1713#if MILTER 1714# define SMFTO_WRITE 0 /* Timeout for sending information */ 1715# define SMFTO_READ 1 /* Timeout waiting for a response */ 1716# define SMFTO_EOM 2 /* Timeout for ACK/NAK to EOM */ 1717# define SMFTO_CONNECT 3 /* Timeout for connect() */ 1718 1719# define SMFTO_NUM_TO 4 /* Total number of timeouts */ 1720 1721struct milter 1722{ 1723 char *mf_name; /* filter name */ 1724 BITMAP256 mf_flags; /* MTA flags */ 1725 mi_int32 mf_fvers; /* filter version */ 1726 mi_int32 mf_fflags; /* filter flags */ 1727 mi_int32 mf_pflags; /* protocol flags */ 1728 char *mf_conn; /* connection info */ 1729 int mf_sock; /* connected socket */ 1730 char mf_state; /* state of filter */ 1731 time_t mf_timeout[SMFTO_NUM_TO]; /* timeouts */ 1732#if _FFR_MILTER_CHECK 1733 /* for testing only */ 1734 mi_int32 mf_mta_prot_version; 1735 mi_int32 mf_mta_prot_flags; 1736 mi_int32 mf_mta_actions; 1737#endif /* _FFR_MILTER_CHECK */ 1738}; 1739 1740struct milters 1741{ 1742 mi_int32 mis_flags; /* filter flags */ 1743}; 1744typedef struct milters milters_T; 1745 1746#define MIS_FL_NONE 0x00000000 /* no requirements... */ 1747#define MIS_FL_DEL_RCPT 0x00000001 /* can delete rcpt */ 1748#define MIS_FL_REJ_RCPT 0x00000002 /* can reject rcpt */ 1749 1750 1751/* MTA flags */ 1752# define SMF_REJECT 'R' /* Reject connection on filter fail */ 1753# define SMF_TEMPFAIL 'T' /* tempfail connection on failure */ 1754# define SMF_TEMPDROP '4' /* 421 connection on failure */ 1755 1756EXTERN struct milter *InputFilters[MAXFILTERS]; 1757EXTERN char *InputFilterList; 1758EXTERN int MilterLogLevel; 1759 1760/* functions */ 1761extern void setup_daemon_milters __P((void)); 1762#endif /* MILTER */ 1763 1764/* 1765** Vendor codes 1766** 1767** Vendors can customize sendmail to add special behaviour, 1768** generally for back compatibility. Ideally, this should 1769** be set up in the .cf file using the "V" command. However, 1770** it's quite reasonable for some vendors to want the default 1771** be their old version; this can be set using 1772** -DVENDOR_DEFAULT=VENDOR_xxx 1773** in the Makefile. 1774** 1775** Vendors should apply to sendmail@sendmail.org for 1776** unique vendor codes. 1777*/ 1778 1779#define VENDOR_BERKELEY 1 /* Berkeley-native configuration file */ 1780#define VENDOR_SUN 2 /* Sun-native configuration file */ 1781#define VENDOR_HP 3 /* Hewlett-Packard specific config syntax */ 1782#define VENDOR_IBM 4 /* IBM specific config syntax */ 1783#define VENDOR_SENDMAIL 5 /* Sendmail, Inc. specific config syntax */ 1784#define VENDOR_DEC 6 /* Compaq, DEC, Digital */ 1785 1786/* prototypes for vendor-specific hook routines */ 1787extern void vendor_daemon_setup __P((ENVELOPE *)); 1788extern void vendor_set_uid __P((UID_T)); 1789 1790 1791/* 1792** Terminal escape codes. 1793** 1794** To make debugging output clearer. 1795*/ 1796 1797struct termescape 1798{ 1799 char *te_rv_on; /* turn reverse-video on */ 1800 char *te_under_on; /* turn underlining on */ 1801 char *te_normal; /* revert to normal output */ 1802}; 1803 1804/* 1805** Additional definitions 1806*/ 1807 1808/* 1809** d_flags, see daemon.c 1810** general rule: lower case: required, upper case: No 1811*/ 1812 1813#define D_AUTHREQ 'a' /* authentication required */ 1814#define D_BINDIF 'b' /* use if_addr for outgoing connection */ 1815#define D_CANONREQ 'c' /* canonification required (cf) */ 1816#define D_IFNHELO 'h' /* use if name for HELO */ 1817#define D_FQMAIL 'f' /* fq sender address required (cf) */ 1818#define D_FQRCPT 'r' /* fq recipient address required (cf) */ 1819#define D_SMTPS 's' /* SMTP over SSL (smtps) */ 1820#define D_UNQUALOK 'u' /* unqualified address is ok (cf) */ 1821#define D_NOAUTH 'A' /* no AUTH */ 1822#define D_NOCANON 'C' /* no canonification (cf) */ 1823#define D_NOETRN 'E' /* no ETRN (MSA) */ 1824#define D_NOTLS 'S' /* don't use STARTTLS */ 1825#define D_ETRNONLY ((char)0x01) /* allow only ETRN (disk low) */ 1826#define D_OPTIONAL 'O' /* optional socket */ 1827#define D_DISABLE ((char)0x02) /* optional socket disabled */ 1828#define D_ISSET ((char)0x03) /* this client struct is set */ 1829 1830#if STARTTLS 1831/* 1832** TLS 1833*/ 1834 1835/* what to do in the TLS initialization */ 1836#define TLS_I_NONE 0x00000000 /* no requirements... */ 1837#define TLS_I_CERT_EX 0x00000001 /* cert must exist */ 1838#define TLS_I_CERT_UNR 0x00000002 /* cert must be g/o unreadable */ 1839#define TLS_I_KEY_EX 0x00000004 /* key must exist */ 1840#define TLS_I_KEY_UNR 0x00000008 /* key must be g/o unreadable */ 1841#define TLS_I_CERTP_EX 0x00000010 /* CA cert path must exist */ 1842#define TLS_I_CERTP_UNR 0x00000020 /* CA cert path must be g/o unreadable */ 1843#define TLS_I_CERTF_EX 0x00000040 /* CA cert file must exist */ 1844#define TLS_I_CERTF_UNR 0x00000080 /* CA cert file must be g/o unreadable */ 1845#define TLS_I_RSA_TMP 0x00000100 /* RSA TMP must be generated */ 1846#define TLS_I_USE_KEY 0x00000200 /* private key must usable */ 1847#define TLS_I_USE_CERT 0x00000400 /* certificate must be usable */ 1848#define TLS_I_VRFY_PATH 0x00000800 /* load verify path must succeed */ 1849#define TLS_I_VRFY_LOC 0x00001000 /* load verify default must succeed */ 1850#define TLS_I_CACHE 0x00002000 /* require cache */ 1851#define TLS_I_TRY_DH 0x00004000 /* try DH certificate */ 1852#define TLS_I_REQ_DH 0x00008000 /* require DH certificate */ 1853#define TLS_I_DHPAR_EX 0x00010000 /* require DH parameters */ 1854#define TLS_I_DHPAR_UNR 0x00020000 /* DH param. must be g/o unreadable */ 1855#define TLS_I_DH512 0x00040000 /* generate 512bit DH param */ 1856#define TLS_I_DH1024 0x00080000 /* generate 1024bit DH param */ 1857#define TLS_I_DH2048 0x00100000 /* generate 2048bit DH param */ 1858#define TLS_I_NO_VRFY 0x00200000 /* do not require authentication */ 1859#define TLS_I_KEY_OUNR 0x00400000 /* Key must be other unreadable */ 1860#define TLS_I_CRLF_EX 0x00800000 /* CRL file must exist */ 1861#define TLS_I_CRLF_UNR 0x01000000 /* CRL file must be g/o unreadable */ 1862 1863/* require server cert */ 1864#define TLS_I_SRV_CERT (TLS_I_CERT_EX | TLS_I_KEY_EX | \ 1865 TLS_I_KEY_UNR | TLS_I_KEY_OUNR | \ 1866 TLS_I_CERTP_EX | TLS_I_CERTF_EX | \ 1867 TLS_I_USE_KEY | TLS_I_USE_CERT | TLS_I_CACHE) 1868 1869/* server requirements */ 1870#define TLS_I_SRV (TLS_I_SRV_CERT | TLS_I_RSA_TMP | TLS_I_VRFY_PATH | \ 1871 TLS_I_VRFY_LOC | TLS_I_TRY_DH | TLS_I_DH512 | \ 1872 TLS_I_CACHE) 1873 1874/* client requirements */ 1875#define TLS_I_CLT (TLS_I_KEY_UNR | TLS_I_KEY_OUNR) 1876 1877#define TLS_AUTH_OK 0 1878#define TLS_AUTH_NO 1 1879#define TLS_AUTH_FAIL (-1) 1880 1881/* functions */ 1882extern bool init_tls_library __P((void)); 1883extern bool inittls __P((SSL_CTX **, unsigned long, bool, char *, char *, char *, char *, char *)); 1884extern bool initclttls __P((bool)); 1885extern void setclttls __P((bool)); 1886extern bool initsrvtls __P((bool)); 1887extern int tls_get_info __P((SSL *, bool, char *, MACROS_T *, bool)); 1888extern int endtls __P((SSL *, char *)); 1889extern void tlslogerr __P((const char *)); 1890 1891 1892EXTERN char *CACertPath; /* path to CA certificates (dir. with hashes) */ 1893EXTERN char *CACertFile; /* file with CA certificate */ 1894EXTERN char *CltCertFile; /* file with client certificate */ 1895EXTERN char *CltKeyFile; /* file with client private key */ 1896# if _FFR_TLS_1 1897EXTERN char *CipherList; /* list of ciphers */ 1898EXTERN char *DHParams5; /* file with DH parameters (512) */ 1899# endif /* _FFR_TLS_1 */ 1900EXTERN char *DHParams; /* file with DH parameters */ 1901EXTERN char *RandFile; /* source of random data */ 1902EXTERN char *SrvCertFile; /* file with server certificate */ 1903EXTERN char *SrvKeyFile; /* file with server private key */ 1904EXTERN char *CRLFile; /* file CRLs */ 1905#if _FFR_CRLPATH 1906EXTERN char *CRLPath; /* path to CRLs (dir. with hashes) */ 1907#endif /* _FFR_CRLPATH */ 1908EXTERN unsigned long TLS_Srv_Opts; /* TLS server options */ 1909#endif /* STARTTLS */ 1910 1911/* 1912** Queue related items 1913*/ 1914 1915/* queue file names */ 1916#define ANYQFL_LETTER '?' 1917#define QUARQF_LETTER 'h' 1918#define DATAFL_LETTER 'd' 1919#define XSCRPT_LETTER 'x' 1920#define NORMQF_LETTER 'q' 1921#define NEWQFL_LETTER 't' 1922 1923# define TEMPQF_LETTER 'T' 1924# define LOSEQF_LETTER 'Q' 1925 1926/* queue sort order */ 1927#define QSO_BYPRIORITY 0 /* sort by message priority */ 1928#define QSO_BYHOST 1 /* sort by first host name */ 1929#define QSO_BYTIME 2 /* sort by submission time */ 1930#define QSO_BYFILENAME 3 /* sort by file name only */ 1931#define QSO_RANDOM 4 /* sort in random order */ 1932#define QSO_BYMODTIME 5 /* sort by modification time */ 1933#define QSO_NONE 6 /* do not sort */ 1934#if _FFR_RHS 1935# define QSO_BYSHUFFLE 7 /* sort by shuffled host name */ 1936#endif /* _FFR_RHS */ 1937 1938#define NOQGRP (-1) /* no queue group (yet) */ 1939#define ENVQGRP (-2) /* use queue group of envelope */ 1940#define NOAQGRP (-3) /* no queue group in addr (yet) */ 1941#define ISVALIDQGRP(x) ((x) >= 0) /* valid queue group? */ 1942#define NOQDIR (-1) /* no queue directory (yet) */ 1943#define ENVQDIR (-2) /* use queue directory of envelope */ 1944#define NOAQDIR (-3) /* no queue directory in addr (yet) */ 1945#define ISVALIDQDIR(x) ((x) >= 0) /* valid queue directory? */ 1946#define RS_QUEUEGROUP "queuegroup" /* ruleset for queue group selection */ 1947 1948#define NOW ((time_t) (-1)) /* queue return: now */ 1949 1950/* SuperSafe values */ 1951#define SAFE_NO 0 /* no fsync(): don't use... */ 1952#define SAFE_INTERACTIVE 1 /* limit fsync() in -odi */ 1953#define SAFE_REALLY 2 /* always fsync() */ 1954#define SAFE_REALLY_POSTMILTER 3 /* fsync() if milter says OK */ 1955 1956/* QueueMode bits */ 1957#define QM_NORMAL ' ' 1958#define QM_QUARANTINE 'Q' 1959#define QM_LOST 'L' 1960 1961/* Queue Run Limitations */ 1962struct queue_char 1963{ 1964 char *queue_match; /* string to match */ 1965 bool queue_negate; /* or not match, if set */ 1966 struct queue_char *queue_next; 1967}; 1968 1969/* run_work_group() flags */ 1970#define RWG_NONE 0x0000 1971#define RWG_FORK 0x0001 1972#define RWG_VERBOSE 0x0002 1973#define RWG_PERSISTENT 0x0004 1974#define RWG_FORCE 0x0008 1975#define RWG_RUNALL 0x0010 1976 1977typedef struct queue_char QUEUE_CHAR; 1978 1979EXTERN int volatile CurRunners; /* current number of runner children */ 1980EXTERN int MaxQueueRun; /* maximum number of jobs in one queue run */ 1981EXTERN int MaxQueueChildren; /* max # of forked queue children */ 1982EXTERN int MaxRunnersPerQueue; /* max # proc's active in queue group */ 1983EXTERN int NiceQueueRun; /* nice queue runs to this value */ 1984EXTERN int NumQueue; /* number of queue groups */ 1985EXTERN int QueueFileMode; /* mode on files in mail queue */ 1986EXTERN int QueueMode; /* which queue items to act upon */ 1987EXTERN int QueueSortOrder; /* queue sorting order algorithm */ 1988EXTERN time_t MinQueueAge; /* min delivery interval */ 1989EXTERN time_t QueueIntvl; /* intervals between running the queue */ 1990EXTERN char *QueueDir; /* location of queue directory */ 1991EXTERN QUEUE_CHAR *QueueLimitId; /* limit queue run to id */ 1992EXTERN QUEUE_CHAR *QueueLimitQuarantine; /* limit queue run to quarantine reason */ 1993EXTERN QUEUE_CHAR *QueueLimitRecipient; /* limit queue run to rcpt */ 1994EXTERN QUEUE_CHAR *QueueLimitSender; /* limit queue run to sender */ 1995EXTERN QUEUEGRP *Queue[MAXQUEUEGROUPS + 1]; /* queue groups */ 1996 1997/* functions */ 1998extern void assign_queueid __P((ENVELOPE *)); 1999extern ADDRESS *copyqueue __P((ADDRESS *, SM_RPOOL_T *)); 2000extern void cleanup_queues __P((void)); 2001extern bool doqueuerun __P((void)); 2002extern void initsys __P((ENVELOPE *)); 2003extern void loseqfile __P((ENVELOPE *, char *)); 2004extern int name2qid __P((char *)); 2005extern char *qid_printname __P((ENVELOPE *)); 2006extern char *qid_printqueue __P((int, int)); 2007extern void quarantine_queue __P((char *, int)); 2008extern char *queuename __P((ENVELOPE *, int)); 2009extern void queueup __P((ENVELOPE *, bool, bool)); 2010extern bool runqueue __P((bool, bool, bool, bool)); 2011extern bool run_work_group __P((int, int)); 2012extern void set_def_queueval __P((QUEUEGRP *, bool)); 2013extern void setup_queues __P((bool)); 2014extern bool setnewqueue __P((ENVELOPE *)); 2015extern bool shouldqueue __P((long, time_t)); 2016extern void sync_queue_time __P((void)); 2017extern void init_qid_alg __P((void)); 2018extern int print_single_queue __P((int, int)); 2019#if REQUIRES_DIR_FSYNC 2020# define SYNC_DIR(path, panic) sync_dir(path, panic) 2021extern void sync_dir __P((char *, bool)); 2022#else /* REQUIRES_DIR_FSYNC */ 2023# define SYNC_DIR(path, panic) ((void) 0) 2024#endif /* REQUIRES_DIR_FSYNC */ 2025 2026/* 2027** Timeouts 2028** 2029** Indicated values are the MINIMUM per RFC 1123 section 5.3.2. 2030*/ 2031 2032EXTERN struct 2033{ 2034 /* RFC 1123-specified timeouts [minimum value] */ 2035 time_t to_initial; /* initial greeting timeout [5m] */ 2036 time_t to_mail; /* MAIL command [5m] */ 2037 time_t to_rcpt; /* RCPT command [5m] */ 2038 time_t to_datainit; /* DATA initiation [2m] */ 2039 time_t to_datablock; /* DATA block [3m] */ 2040 time_t to_datafinal; /* DATA completion [10m] */ 2041 time_t to_nextcommand; /* next command [5m] */ 2042 /* following timeouts are not mentioned in RFC 1123 */ 2043 time_t to_iconnect; /* initial connection timeout (first try) */ 2044 time_t to_connect; /* initial connection timeout (later tries) */ 2045 time_t to_aconnect; /* all connections timeout (MX and A records) */ 2046 time_t to_rset; /* RSET command */ 2047 time_t to_helo; /* HELO command */ 2048 time_t to_quit; /* QUIT command */ 2049 time_t to_miscshort; /* misc short commands (NOOP, VERB, etc) */ 2050 time_t to_ident; /* IDENT protocol requests */ 2051 time_t to_fileopen; /* opening :include: and .forward files */ 2052 time_t to_control; /* process a control socket command */ 2053 time_t to_lhlo; /* LMTP: LHLO command */ 2054#if SASL 2055 time_t to_auth; /* AUTH dialogue [10m] */ 2056#endif /* SASL */ 2057#if STARTTLS 2058 time_t to_starttls; /* STARTTLS dialogue [10m] */ 2059#endif /* STARTTLS */ 2060 /* following are per message */ 2061 time_t to_q_return[MAXTOCLASS]; /* queue return timeouts */ 2062 time_t to_q_warning[MAXTOCLASS]; /* queue warning timeouts */ 2063 time_t res_retrans[MAXRESTOTYPES]; /* resolver retransmit */ 2064 int res_retry[MAXRESTOTYPES]; /* resolver retry */ 2065} TimeOuts; 2066 2067/* timeout classes for return and warning timeouts */ 2068#define TOC_NORMAL 0 /* normal delivery */ 2069#define TOC_URGENT 1 /* urgent delivery */ 2070#define TOC_NONURGENT 2 /* non-urgent delivery */ 2071#define TOC_DSN 3 /* DSN delivery */ 2072 2073/* resolver timeout specifiers */ 2074#define RES_TO_FIRST 0 /* first attempt */ 2075#define RES_TO_NORMAL 1 /* subsequent attempts */ 2076#define RES_TO_DEFAULT 2 /* default value */ 2077 2078/* functions */ 2079extern void inittimeouts __P((char *, bool)); 2080 2081/* 2082** Interface probing 2083*/ 2084 2085#define DPI_PROBENONE 0 /* Don't probe any interfaces */ 2086#define DPI_PROBEALL 1 /* Probe all interfaces */ 2087#define DPI_SKIPLOOPBACK 2 /* Don't probe loopback interfaces */ 2088 2089/* 2090** Trace information 2091*/ 2092 2093/* macros for debugging flags */ 2094#define tTd(flag, level) (tTdvect[flag] >= (unsigned char)level) 2095#define tTdlevel(flag) (tTdvect[flag]) 2096 2097/* variables */ 2098extern unsigned char tTdvect[100]; /* trace vector */ 2099 2100/* 2101** Miscellaneous information. 2102*/ 2103 2104/* 2105** The "no queue id" queue id for sm_syslog 2106*/ 2107 2108#define NOQID "" 2109 2110#define CURHOSTNAME (CurHostName == NULL ? "local" : CurHostName) 2111 2112/* 2113** Some in-line functions 2114*/ 2115 2116/* set exit status */ 2117#define setstat(s) { \ 2118 if (ExitStat == EX_OK || ExitStat == EX_TEMPFAIL) \ 2119 ExitStat = s; \ 2120 } 2121 2122 2123#define STRUCTCOPY(s, d) d = s 2124 2125/* free a pointer if it isn't NULL and set it to NULL */ 2126#define SM_FREE_CLR(p) \ 2127 if ((p) != NULL) \ 2128 { \ 2129 sm_free(p); \ 2130 (p) = NULL; \ 2131 } \ 2132 else 2133 2134/* 2135** Update a permanent string variable with a new value. 2136** The old value is freed, the new value is strdup'ed. 2137** 2138** We use sm_pstrdup_x to duplicate the string because it raises 2139** an exception on error, and because it allocates "permanent storage" 2140** which is not expected to be freed before process exit. 2141** The latter is important for memory leak analysis. 2142** 2143** If an exception occurs while strdup'ing the new value, 2144** then the variable remains set to the old value. 2145** That's why the strdup must occur before we free the old value. 2146** 2147** The macro uses a do loop so that this idiom will work: 2148** if (...) 2149** PSTRSET(var, val1); 2150** else 2151** PSTRSET(var, val2); 2152*/ 2153#define PSTRSET(var, val) \ 2154 do \ 2155 { \ 2156 char *_newval = sm_pstrdup_x(val); \ 2157 if (var != NULL) \ 2158 sm_free(var); \ 2159 var = _newval; \ 2160 } while (0) 2161 2162#define _CHECK_RESTART \ 2163 do \ 2164 { \ 2165 if (ShutdownRequest != NULL) \ 2166 shutdown_daemon(); \ 2167 else if (RestartRequest != NULL) \ 2168 restart_daemon(); \ 2169 else if (RestartWorkGroup) \ 2170 restart_marked_work_groups(); \ 2171 } while (0) 2172 2173# define CHECK_RESTART _CHECK_RESTART 2174 2175/* reply types (text in SmtpMsgBuffer) */ 2176#define XS_DEFAULT 0 2177#define XS_STARTTLS 1 2178#define XS_AUTH 2 2179 2180/* 2181** Global variables. 2182*/ 2183 2184#if _FFR_ADDR_TYPE_MODES 2185EXTERN bool AddrTypeModes; /* addr_type: extra "mode" information */ 2186#endif /* _FFR_ADDR_TYPE_MODES */ 2187EXTERN bool AllowBogusHELO; /* allow syntax errors on HELO command */ 2188EXTERN bool CheckAliases; /* parse addresses during newaliases */ 2189#if _FFR_QUEUE_RUN_PARANOIA 2190EXTERN int CheckQueueRunners; /* check whether queue runners are OK */ 2191#endif /* _FFR_QUEUE_RUN_PARANOIA */ 2192EXTERN bool ColonOkInAddr; /* single colon legal in address */ 2193#if !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) 2194EXTERN bool ConfigFileRead; /* configuration file has been read */ 2195#endif /* !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) */ 2196EXTERN bool DisConnected; /* running with OutChannel redirect to transcript file */ 2197EXTERN bool DontExpandCnames; /* do not $[...$] expand CNAMEs */ 2198EXTERN bool DontInitGroups; /* avoid initgroups() because of NIS cost */ 2199EXTERN bool DontLockReadFiles; /* don't read lock support files */ 2200EXTERN bool DontPruneRoutes; /* don't prune source routes */ 2201EXTERN bool ForkQueueRuns; /* fork for each job when running the queue */ 2202EXTERN bool FromFlag; /* if set, "From" person is explicit */ 2203EXTERN bool GrabTo; /* if set, get recipients from msg */ 2204EXTERN bool EightBitAddrOK; /* we'll let 8-bit addresses through */ 2205EXTERN bool HasEightBits; /* has at least one eight bit input byte */ 2206EXTERN bool HasWildcardMX; /* don't use MX records when canonifying */ 2207EXTERN bool HoldErrs; /* only output errors to transcript */ 2208EXTERN bool IgnoreHostStatus; /* ignore long term host status files */ 2209EXTERN bool IgnrDot; /* don't let dot end messages */ 2210EXTERN bool LogUsrErrs; /* syslog user errors (e.g., SMTP RCPT cmd) */ 2211EXTERN bool MatchGecos; /* look for user names in gecos field */ 2212EXTERN bool MeToo; /* send to the sender also */ 2213EXTERN bool NoAlias; /* suppress aliasing */ 2214EXTERN bool NoConnect; /* don't connect to non-local mailers */ 2215EXTERN bool OnlyOneError; /* .... or only want to give one SMTP reply */ 2216EXTERN bool QuickAbort; /* .... but only if we want a quick abort */ 2217#if REQUIRES_DIR_FSYNC 2218EXTERN bool RequiresDirfsync; /* requires fsync() for directory */ 2219#endif /* REQUIRES_DIR_FSYNC */ 2220EXTERN bool volatile RestartWorkGroup; /* daemon needs to restart some work groups */ 2221EXTERN bool RrtImpliesDsn; /* turn Return-Receipt-To: into DSN */ 2222EXTERN bool SaveFrom; /* save leading "From" lines */ 2223EXTERN bool SendMIMEErrors; /* send error messages in MIME format */ 2224EXTERN bool SevenBitInput; /* force 7-bit data on input */ 2225EXTERN bool SingleLineFromHeader; /* force From: header to be one line */ 2226EXTERN bool SingleThreadDelivery; /* single thread hosts on delivery */ 2227EXTERN bool SoftBounce; /* replace 5xy by 4xy (for testing) */ 2228EXTERN bool volatile StopRequest; /* stop sending output */ 2229EXTERN bool SuprErrs; /* set if we are suppressing errors */ 2230EXTERN bool TryNullMXList; /* if we are the best MX, try host directly */ 2231EXTERN bool UseMSP; /* mail submission: group writable queue ok? */ 2232EXTERN bool WorkAroundBrokenAAAA; /* some nameservers return SERVFAIL on AAAA queries */ 2233EXTERN bool UseErrorsTo; /* use Errors-To: header (back compat) */ 2234EXTERN bool UseNameServer; /* using DNS -- interpret h_errno & MX RRs */ 2235EXTERN char InetMode; /* default network for daemon mode */ 2236EXTERN char OpMode; /* operation mode, see below */ 2237EXTERN char SpaceSub; /* substitution for <lwsp> */ 2238EXTERN int BadRcptThrottle; /* Throttle rejected RCPTs per SMTP message */ 2239#if _FFR_BADRCPT_SHUTDOWN 2240EXTERN int BadRcptShutdown; /* Shutdown connection for rejected RCPTs */ 2241EXTERN int BadRcptShutdownGood; /* above even when there are good RCPTs */ 2242#endif /* _FFR_BADRCPT_SHUTDOWN */ 2243EXTERN int CheckpointInterval; /* queue file checkpoint interval */ 2244EXTERN int ConfigLevel; /* config file level */ 2245EXTERN int ConnRateThrottle; /* throttle for SMTP connection rate */ 2246EXTERN int volatile CurChildren; /* current number of daemonic children */ 2247EXTERN int CurrentLA; /* current load average */ 2248EXTERN int DefaultNotify; /* default DSN notification flags */ 2249EXTERN int DelayLA; /* load average to delay connections */ 2250EXTERN int DontProbeInterfaces; /* don't probe interfaces for names */ 2251EXTERN int Errors; /* set if errors (local to single pass) */ 2252EXTERN int ExitStat; /* exit status code */ 2253EXTERN int FastSplit; /* fast initial splitting of envelopes */ 2254EXTERN int FileMode; /* mode on files */ 2255EXTERN int LineNumber; /* line number in current input */ 2256EXTERN int LogLevel; /* level of logging to perform */ 2257EXTERN int MaxAliasRecursion; /* maximum depth of alias recursion */ 2258EXTERN int MaxChildren; /* maximum number of daemonic children */ 2259EXTERN int MaxForwardEntries; /* maximum number of forward entries */ 2260EXTERN int MaxHeadersLength; /* max length of headers */ 2261EXTERN int MaxHopCount; /* max # of hops until bounce */ 2262EXTERN int MaxMacroRecursion; /* maximum depth of macro recursion */ 2263EXTERN int MaxMimeFieldLength; /* maximum MIME field length */ 2264EXTERN int MaxMimeHeaderLength; /* maximum MIME header length */ 2265EXTERN int MaxNOOPCommands; /* max "noise" commands before slowdown */ 2266 2267EXTERN int MaxRcptPerMsg; /* max recipients per SMTP message */ 2268EXTERN int MaxRuleRecursion; /* maximum depth of ruleset recursion */ 2269#if _FFR_MSG_ACCEPT 2270EXTERN char *MessageAccept; /* "Message accepted for delivery" reply text */ 2271#endif /* _FFR_MSG_ACCEPT */ 2272 2273EXTERN int MimeMode; /* MIME processing mode */ 2274EXTERN int NoRecipientAction; 2275 2276#if SM_CONF_SHM 2277EXTERN int Numfilesys; /* number of queue file systems */ 2278EXTERN int *PNumFileSys; 2279# define NumFileSys (*PNumFileSys) 2280# else /* SM_CONF_SHM */ 2281EXTERN int NumFileSys; /* number of queue file systems */ 2282# endif /* SM_CONF_SHM */ 2283 2284EXTERN int QueueLA; /* load average starting forced queueing */ 2285EXTERN int RefuseLA; /* load average refusing connections */ 2286EXTERN time_t RejectLogInterval; /* time btwn log msgs while refusing */ 2287#if _FFR_MEMSTAT 2288EXTERN long QueueLowMem; /* low memory starting forced queueing */ 2289EXTERN long RefuseLowMem; /* low memory refusing connections */ 2290EXTERN char *MemoryResource;/* memory resource to look up */ 2291#endif /* _FFR_MEMSTAT */ 2292EXTERN int SuperSafe; /* be extra careful, even if expensive */ 2293EXTERN int VendorCode; /* vendor-specific operation enhancements */ 2294EXTERN int Verbose; /* set if blow-by-blow desired */ 2295EXTERN gid_t DefGid; /* default gid to run as */ 2296EXTERN gid_t RealGid; /* real gid of caller */ 2297EXTERN gid_t RunAsGid; /* GID to become for bulk of run */ 2298EXTERN gid_t EffGid; /* effective gid */ 2299#if SM_CONF_SHM 2300EXTERN key_t ShmKey; /* shared memory key */ 2301EXTERN char *ShmKeyFile; /* shared memory key file */ 2302#endif /* SM_CONF_SHM */ 2303EXTERN pid_t CurrentPid; /* current process id */ 2304EXTERN pid_t DaemonPid; /* process id of daemon */ 2305EXTERN pid_t PidFilePid; /* daemon/queue runner who wrote pid file */ 2306EXTERN uid_t DefUid; /* default uid to run as */ 2307EXTERN uid_t RealUid; /* real uid of caller */ 2308EXTERN uid_t RunAsUid; /* UID to become for bulk of run */ 2309EXTERN uid_t TrustedUid; /* uid of trusted user for files and startup */ 2310EXTERN size_t DataFileBufferSize; /* size of buf for in-core data file */ 2311EXTERN time_t DeliverByMin; /* deliver by minimum time */ 2312EXTERN time_t DialDelay; /* delay between dial-on-demand tries */ 2313EXTERN time_t SafeAlias; /* interval to wait until @:@ in alias file */ 2314EXTERN time_t ServiceCacheMaxAge; /* refresh interval for cache */ 2315EXTERN size_t XscriptFileBufferSize; /* size of buf for in-core transcript file */ 2316EXTERN MODE_T OldUmask; /* umask when sendmail starts up */ 2317EXTERN long MaxMessageSize; /* advertised max size we will accept */ 2318EXTERN long MinBlocksFree; /* min # of blocks free on queue fs */ 2319EXTERN long QueueFactor; /* slope of queue function */ 2320EXTERN long WkClassFact; /* multiplier for message class -> priority */ 2321EXTERN long WkRecipFact; /* multiplier for # of recipients -> priority */ 2322EXTERN long WkTimeFact; /* priority offset each time this job is run */ 2323EXTERN char *ControlSocketName; /* control socket filename [control.c] */ 2324EXTERN char *CurHostName; /* current host we are dealing with */ 2325EXTERN char *DeadLetterDrop; /* path to dead letter office */ 2326EXTERN char *DefUser; /* default user to run as (from DefUid) */ 2327EXTERN char *DefaultCharSet; /* default character set for MIME */ 2328EXTERN char *DoubleBounceAddr; /* where to send double bounces */ 2329EXTERN char *ErrMsgFile; /* file to prepend to all error messages */ 2330EXTERN char *FallbackMX; /* fall back MX host */ 2331EXTERN char *FallbackSmartHost; /* fall back smart host */ 2332EXTERN char *FileName; /* name to print on error messages */ 2333EXTERN char *ForwardPath; /* path to search for .forward files */ 2334EXTERN char *HeloName; /* hostname to announce in HELO */ 2335EXTERN char *HelpFile; /* location of SMTP help file */ 2336EXTERN char *HostStatDir; /* location of host status information */ 2337EXTERN char *HostsFile; /* path to /etc/hosts file */ 2338extern char *Mbdb; /* mailbox database type */ 2339EXTERN char *MustQuoteChars; /* quote these characters in phrases */ 2340EXTERN char *MyHostName; /* name of this host for SMTP messages */ 2341EXTERN char *OperatorChars; /* operators (old $o macro) */ 2342EXTERN char *PidFile; /* location of proc id file [conf.c] */ 2343EXTERN char *PostMasterCopy; /* address to get errs cc's */ 2344EXTERN char *ProcTitlePrefix; /* process title prefix */ 2345EXTERN char *RealHostName; /* name of host we are talking to */ 2346EXTERN char *RealUserName; /* real user name of caller */ 2347EXTERN char *volatile RestartRequest;/* a sendmail restart has been requested */ 2348EXTERN char *RunAsUserName; /* user to become for bulk of run */ 2349EXTERN char *SafeFileEnv; /* chroot location for file delivery */ 2350EXTERN char *ServiceSwitchFile; /* backup service switch */ 2351EXTERN char *volatile ShutdownRequest;/* a sendmail shutdown has been requested */ 2352EXTERN char *SmtpGreeting; /* SMTP greeting message (old $e macro) */ 2353EXTERN char *SmtpPhase; /* current phase in SMTP processing */ 2354EXTERN char SmtpError[MAXLINE]; /* save failure error messages */ 2355EXTERN char *StatFile; /* location of statistics summary */ 2356EXTERN char *TimeZoneSpec; /* override time zone specification */ 2357EXTERN char *UdbSpec; /* user database source spec */ 2358EXTERN char *UnixFromLine; /* UNIX From_ line (old $l macro) */ 2359EXTERN char **ExternalEnviron; /* saved user (input) environment */ 2360EXTERN char **SaveArgv; /* argument vector for re-execing */ 2361EXTERN BITMAP256 DontBlameSendmail; /* DontBlameSendmail bits */ 2362EXTERN SM_FILE_T *InChannel; /* input connection */ 2363EXTERN SM_FILE_T *OutChannel; /* output connection */ 2364EXTERN SM_FILE_T *TrafficLogFile; /* file in which to log all traffic */ 2365#if HESIOD 2366EXTERN void *HesiodContext; 2367#endif /* HESIOD */ 2368EXTERN ENVELOPE *CurEnv; /* envelope currently being processed */ 2369EXTERN char *RuleSetNames[MAXRWSETS]; /* ruleset number to name */ 2370EXTERN char *UserEnviron[MAXUSERENVIRON + 1]; 2371EXTERN struct rewrite *RewriteRules[MAXRWSETS]; 2372EXTERN struct termescape TermEscape; /* terminal escape codes */ 2373EXTERN SOCKADDR ConnectOnlyTo; /* override connection address (for testing) */ 2374EXTERN SOCKADDR RealHostAddr; /* address of host we are talking to */ 2375extern const SM_EXC_TYPE_T EtypeQuickAbort; /* type of a QuickAbort exception */ 2376 2377 2378EXTERN int ConnectionRateWindowSize; 2379 2380/* 2381** Declarations of useful functions 2382*/ 2383 2384/* Transcript file */ 2385extern void closexscript __P((ENVELOPE *)); 2386extern void openxscript __P((ENVELOPE *)); 2387 2388/* error related */ 2389extern void buffer_errors __P((void)); 2390extern void flush_errors __P((bool)); 2391extern void PRINTFLIKE(1, 2) message __P((const char *, ...)); 2392extern void PRINTFLIKE(1, 2) nmessage __P((const char *, ...)); 2393extern void PRINTFLIKE(1, 2) syserr __P((const char *, ...)); 2394extern void PRINTFLIKE(2, 3) usrerrenh __P((char *, const char *, ...)); 2395extern void PRINTFLIKE(1, 2) usrerr __P((const char *, ...)); 2396extern int isenhsc __P((const char *, int)); 2397extern int extenhsc __P((const char *, int, char *)); 2398 2399/* alias file */ 2400extern void alias __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 2401extern bool aliaswait __P((MAP *, char *, bool)); 2402extern void forward __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 2403extern void readaliases __P((MAP *, SM_FILE_T *, bool, bool)); 2404extern bool rebuildaliases __P((MAP *, bool)); 2405extern void setalias __P((char *)); 2406 2407/* logging */ 2408extern void logdelivery __P((MAILER *, MCI *, char *, const char *, ADDRESS *, time_t, ENVELOPE *)); 2409extern void logsender __P((ENVELOPE *, char *)); 2410extern void PRINTFLIKE(3, 4) sm_syslog __P((int, const char *, const char *, ...)); 2411 2412/* SMTP */ 2413extern void giveresponse __P((int, char *, MAILER *, MCI *, ADDRESS *, time_t, ENVELOPE *, ADDRESS *)); 2414extern int reply __P((MAILER *, MCI *, ENVELOPE *, time_t, void (*)__P((char *, bool, MAILER *, MCI *, ENVELOPE *)), char **, int)); 2415extern void smtp __P((char *volatile, BITMAP256, ENVELOPE *volatile)); 2416#if SASL 2417extern int smtpauth __P((MAILER *, MCI *, ENVELOPE *)); 2418#endif /* SASL */ 2419extern int smtpdata __P((MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t)); 2420extern int smtpgetstat __P((MAILER *, MCI *, ENVELOPE *)); 2421extern int smtpmailfrom __P((MAILER *, MCI *, ENVELOPE *)); 2422extern void smtpmessage __P((char *, MAILER *, MCI *, ...)); 2423extern void smtpinit __P((MAILER *, MCI *, ENVELOPE *, bool)); 2424extern char *smtptodsn __P((int)); 2425extern int smtpprobe __P((MCI *)); 2426extern void smtpquit __P((MAILER *, MCI *, ENVELOPE *)); 2427extern int smtprcpt __P((ADDRESS *, MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t)); 2428extern void smtprset __P((MAILER *, MCI *, ENVELOPE *)); 2429 2430#define REPLYTYPE(r) ((r) / 100) /* first digit of reply code */ 2431#define ISSMTPCODE(c) (isascii(c[0]) && isdigit(c[0]) && \ 2432 isascii(c[1]) && isdigit(c[1]) && \ 2433 isascii(c[2]) && isdigit(c[2])) 2434#define ISSMTPREPLY(c) (ISSMTPCODE(c) && \ 2435 (c[3] == ' ' || c[3] == '-' || c[3] == '\0')) 2436 2437/* delivery */ 2438extern pid_t dowork __P((int, int, char *, bool, bool, ENVELOPE *)); 2439extern pid_t doworklist __P((ENVELOPE *, bool, bool)); 2440extern int endmailer __P((MCI *, ENVELOPE *, char **)); 2441extern int mailfile __P((char *volatile, MAILER *volatile, ADDRESS *, volatile long, ENVELOPE *)); 2442extern void sendall __P((ENVELOPE *, int)); 2443 2444/* stats */ 2445#define STATS_NORMAL 'n' 2446#define STATS_QUARANTINE 'q' 2447#define STATS_REJECT 'r' 2448#define STATS_CONNECT 'c' 2449 2450extern void markstats __P((ENVELOPE *, ADDRESS *, int)); 2451extern void clearstats __P((void)); 2452extern void poststats __P((char *)); 2453 2454/* control socket */ 2455extern void closecontrolsocket __P((bool)); 2456extern void clrcontrol __P((void)); 2457extern void control_command __P((int, ENVELOPE *)); 2458extern int opencontrolsocket __P((void)); 2459 2460#if MILTER 2461/* milter functions */ 2462extern void milter_config __P((char *, struct milter **, int)); 2463extern void milter_setup __P((char *)); 2464extern void milter_set_option __P((char *, char *, bool)); 2465extern bool milter_init __P((ENVELOPE *, char *, milters_T *)); 2466extern void milter_quit __P((ENVELOPE *)); 2467extern void milter_abort __P((ENVELOPE *)); 2468extern char *milter_connect __P((char *, SOCKADDR, ENVELOPE *, char *)); 2469extern char *milter_helo __P((char *, ENVELOPE *, char *)); 2470extern char *milter_envfrom __P((char **, ENVELOPE *, char *)); 2471extern char *milter_data_cmd __P((ENVELOPE *, char *)); 2472extern char *milter_envrcpt __P((char **, ENVELOPE *, char *, bool)); 2473extern char *milter_data __P((ENVELOPE *, char *)); 2474extern char *milter_unknown __P((char *, ENVELOPE *, char *)); 2475#endif /* MILTER */ 2476 2477extern char *addquotes __P((char *, SM_RPOOL_T *)); 2478extern char *arpadate __P((char *)); 2479extern bool atobool __P((char *)); 2480extern int atooct __P((char *)); 2481extern void auth_warning __P((ENVELOPE *, const char *, ...)); 2482extern int blocksignal __P((int)); 2483extern bool bitintersect __P((BITMAP256, BITMAP256)); 2484extern bool bitzerop __P((BITMAP256)); 2485extern int check_bodytype __P((char *)); 2486extern void buildfname __P((char *, char *, char *, int)); 2487extern bool chkclientmodifiers __P((int)); 2488extern bool chkdaemonmodifiers __P((int)); 2489extern int checkcompat __P((ADDRESS *, ENVELOPE *)); 2490#ifdef XDEBUG 2491extern void checkfd012 __P((char *)); 2492extern void checkfdopen __P((int, char *)); 2493#endif /* XDEBUG */ 2494extern void checkfds __P((char *)); 2495extern bool chownsafe __P((int, bool)); 2496extern void cleanstrcpy __P((char *, char *, int)); 2497#if SM_CONF_SHM 2498extern void cleanup_shm __P((bool)); 2499#endif /* SM_CONF_SHM */ 2500extern void close_sendmail_pid __P((void)); 2501extern void clrdaemon __P((void)); 2502extern void collect __P((SM_FILE_T *, bool, HDR **, ENVELOPE *, bool)); 2503extern bool connection_rate_check __P((SOCKADDR *, ENVELOPE *)); 2504extern time_t convtime __P((char *, int)); 2505extern char **copyplist __P((char **, bool, SM_RPOOL_T *)); 2506extern void copy_class __P((int, int)); 2507extern int count_open_connections __P((SOCKADDR *)); 2508extern time_t curtime __P((void)); 2509extern char *defcharset __P((ENVELOPE *)); 2510extern char *denlstring __P((char *, bool, bool)); 2511extern void dferror __P((SM_FILE_T *volatile, char *, ENVELOPE *)); 2512extern void disconnect __P((int, ENVELOPE *)); 2513extern void disk_status __P((SM_FILE_T *, char *)); 2514extern bool dns_getcanonname __P((char *, int, bool, int *, int *)); 2515extern pid_t dofork __P((void)); 2516extern int drop_privileges __P((bool)); 2517extern int dsntoexitstat __P((char *)); 2518extern void dumpfd __P((int, bool, bool)); 2519#if SM_HEAP_CHECK 2520extern void dumpstab __P((void)); 2521#endif /* SM_HEAP_CHECK */ 2522extern void dumpstate __P((char *)); 2523extern bool enoughdiskspace __P((long, ENVELOPE *)); 2524extern char *exitstat __P((char *)); 2525extern void fatal_error __P((SM_EXC_T *)); 2526extern char *fgetfolded __P((char *, int *, SM_FILE_T *)); 2527extern void fill_fd __P((int, char *)); 2528extern char *find_character __P((char *, int)); 2529extern int finduser __P((char *, bool *, SM_MBDB_T *)); 2530extern void finis __P((bool, bool, volatile int)); 2531extern void fixcrlf __P((char *, bool)); 2532extern long freediskspace __P((const char *, long *)); 2533#if NETINET6 && NEEDSGETIPNODE 2534extern void freehostent __P((struct hostent *)); 2535#endif /* NETINET6 && NEEDSGETIPNODE */ 2536extern char *get_column __P((char *, int, int, char *, int)); 2537extern char *getauthinfo __P((int, bool *)); 2538extern int getdtsize __P((void)); 2539extern int getla __P((void)); 2540extern char *getmodifiers __P((char *, BITMAP256)); 2541extern BITMAP256 *getrequests __P((ENVELOPE *)); 2542extern char *getvendor __P((int)); 2543extern void help __P((char *, ENVELOPE *)); 2544extern void init_md __P((int, char **)); 2545extern void initdaemon __P((void)); 2546extern void inithostmaps __P((void)); 2547extern void initmacros __P((ENVELOPE *)); 2548extern void initsetproctitle __P((int, char **, char **)); 2549extern void init_vendor_macros __P((ENVELOPE *)); 2550extern SIGFUNC_DECL intsig __P((int)); 2551extern bool isloopback __P((SOCKADDR sa)); 2552extern void load_if_names __P((void)); 2553extern bool lockfile __P((int, char *, char *, int)); 2554extern void log_sendmail_pid __P((ENVELOPE *)); 2555extern void logundelrcpts __P((ENVELOPE *, char *, int, bool)); 2556extern char lower __P((int)); 2557extern void makelower __P((char *)); 2558extern int makeconnection_ds __P((char *, MCI *)); 2559extern int makeconnection __P((char *, volatile unsigned int, MCI *, ENVELOPE *, time_t)); 2560extern void makeworkgroups __P((void)); 2561extern void markfailure __P((ENVELOPE *, ADDRESS *, MCI *, int, bool)); 2562extern void mark_work_group_restart __P((int, int)); 2563extern MCI *mci_new __P((SM_RPOOL_T *)); 2564extern char *munchstring __P((char *, char **, int)); 2565extern struct hostent *myhostname __P((char *, int)); 2566extern char *newstr __P((const char *)); 2567#if NISPLUS 2568extern char *nisplus_default_domain __P((void)); /* extern for Sun */ 2569#endif /* NISPLUS */ 2570extern bool path_is_dir __P((char *, bool)); 2571extern int pickqdir __P((QUEUEGRP *qg, long fsize, ENVELOPE *e)); 2572extern char *pintvl __P((time_t, bool)); 2573extern void printav __P((SM_FILE_T *, char **)); 2574extern void printmailer __P((SM_FILE_T *, MAILER *)); 2575extern void printnqe __P((SM_FILE_T *, char *)); 2576extern void printopenfds __P((bool)); 2577extern void printqueue __P((void)); 2578extern void printrules __P((void)); 2579extern pid_t prog_open __P((char **, int *, ENVELOPE *)); 2580extern bool putline __P((char *, MCI *)); 2581extern bool putxline __P((char *, size_t, MCI *, int)); 2582extern void queueup_macros __P((int, SM_FILE_T *, ENVELOPE *)); 2583extern void readcf __P((char *, bool, ENVELOPE *)); 2584extern SIGFUNC_DECL reapchild __P((int)); 2585extern int releasesignal __P((int)); 2586extern void resetlimits __P((void)); 2587extern void restart_daemon __P((void)); 2588extern void restart_marked_work_groups __P((void)); 2589extern bool rfc822_string __P((char *)); 2590extern void rmexpstab __P((void)); 2591extern bool savemail __P((ENVELOPE *, bool)); 2592extern void seed_random __P((void)); 2593extern void sendtoargv __P((char **, ENVELOPE *)); 2594extern void setclientoptions __P((char *)); 2595extern bool setdaemonoptions __P((char *)); 2596extern void setdefaults __P((ENVELOPE *)); 2597extern void setdefuser __P((void)); 2598extern bool setvendor __P((char *)); 2599extern void set_op_mode __P((int)); 2600extern void setoption __P((int, char *, bool, bool, ENVELOPE *)); 2601extern sigfunc_t setsignal __P((int, sigfunc_t)); 2602extern void sm_setuserenv __P((const char *, const char *)); 2603extern void settime __P((ENVELOPE *)); 2604#if STARTTLS 2605extern void set_tls_rd_tmo __P((int)); 2606#else /* STARTTLS */ 2607#define set_tls_rd_tmo(rd_tmo) 2608#endif /* STARTTLS */ 2609extern char *sfgets __P((char *, int, SM_FILE_T *, time_t, char *)); 2610extern char *shortenstring __P((const char *, size_t)); 2611extern char *shorten_hostname __P((char [])); 2612extern bool shorten_rfc822_string __P((char *, size_t)); 2613extern void shutdown_daemon __P((void)); 2614extern void sm_closefrom __P((int lowest, int highest)); 2615extern void sm_close_on_exec __P((int lowest, int highest)); 2616extern struct hostent *sm_gethostbyname __P((char *, int)); 2617extern struct hostent *sm_gethostbyaddr __P((char *, int, int)); 2618extern void sm_getla __P((void)); 2619extern struct passwd *sm_getpwnam __P((char *)); 2620extern struct passwd *sm_getpwuid __P((UID_T)); 2621extern void sm_setproctitle __P((bool, ENVELOPE *, const char *, ...)); 2622extern pid_t sm_wait __P((int *)); 2623extern bool split_by_recipient __P((ENVELOPE *e)); 2624extern void stop_sendmail __P((void)); 2625extern void stripbackslash __P((char *)); 2626extern bool strreplnonprt __P((char *, int)); 2627extern bool strcontainedin __P((bool, char *, char *)); 2628extern int switch_map_find __P((char *, char *[], short [])); 2629#if STARTTLS 2630extern void tls_set_verify __P((SSL_CTX *, SSL *, bool)); 2631#endif /* STARTTLS */ 2632extern bool transienterror __P((int)); 2633extern void truncate_at_delim __P((char *, size_t, int)); 2634extern void tTflag __P((char *)); 2635extern void tTsetup __P((unsigned char *, unsigned int, char *)); 2636extern SIGFUNC_DECL tick __P((int)); 2637extern char *ttypath __P((void)); 2638extern void unlockqueue __P((ENVELOPE *)); 2639#if !HASUNSETENV 2640extern void unsetenv __P((char *)); 2641#endif /* !HASUNSETENV */ 2642 2643/* update file system information: +/- some blocks */ 2644#if SM_CONF_SHM 2645extern void upd_qs __P((ENVELOPE *, int, int, char *)); 2646# define updfs(e, count, space, where) upd_qs(e, count, space, where) 2647#else /* SM_CONF_SHM */ 2648# define updfs(e, count, space, where) 2649# define upd_qs(e, count, space, where) 2650#endif /* SM_CONF_SHM */ 2651 2652extern char *username __P((void)); 2653extern bool usershellok __P((char *, char *)); 2654extern void vendor_post_defaults __P((ENVELOPE *)); 2655extern void vendor_pre_defaults __P((ENVELOPE *)); 2656extern int waitfor __P((pid_t)); 2657extern bool writable __P((char *, ADDRESS *, long)); 2658#if SM_HEAP_CHECK 2659# define xalloc(size) xalloc_tagged(size, __FILE__, __LINE__) 2660extern char *xalloc_tagged __P((int, char*, int)); 2661#else /* SM_HEAP_CHECK */ 2662extern char *xalloc __P((int)); 2663#endif /* SM_HEAP_CHECK */ 2664extern void xputs __P((SM_FILE_T *, const char *)); 2665extern char *xtextify __P((char *, char *)); 2666extern bool xtextok __P((char *)); 2667extern int xunlink __P((char *)); 2668extern char *xuntextify __P((char *)); 2669 2670 2671#undef EXTERN 2672#endif /* ! _SENDMAIL_H */ 2673