2 * Copyright (c) 1998-2013, 2023,2024 Proofpoint, Inc. and its suppliers.
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.
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.
14 ** SENDMAIL.H -- MTA-specific definitions for sendmail.
18 # define _SENDMAIL_H 1
21 # define MILTER 1 /* turn on MILTER by default */
27 # define EXTERN extern
40 #include "sendmail/sendmail.h"
43 # include <openssl/ssl.h>
44 # if _FFR_TLSA_DANE && !defined(DANE)
45 # define DANE _FFR_TLSA_DANE
49 # error "DANE set but STARTTLS not defined"
51 # if _FFR_TLS_ALTNAMES
52 # error "_FFR_TLS_ALTNAMES set but STARTTLS not defined"
55 # error "_FFR_TLSFB2CLEAR set but STARTTLS not defined"
57 # if _FFR_TLS_USE_CERTIFICATE_CHAIN_FILE
58 # error "_FFR_TLS_USE_CERTIFICATE_CHAIN_FILE set but STARTTLS not defined"
64 # define SM_PROF(x) moncontrol(x)
71 SM_UNUSED(static char SmailId[]) = "@(#)$Id: sendmail.h,v 8.1104 2013-11-22 20:51:56 ca Exp $";
84 #include <sm/signal.h>
87 #include <sm/errstring.h>
88 #include <sm/sysexits.h>
96 #if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25
97 # include <sys/socket.h>
102 #if NETINET || NETINET6
103 # include <netinet/in.h>
107 ** There is no standard yet for IPv6 includes.
108 ** Specify OS specific implementation in conf.h
110 #endif /* NETINET6 */
112 # include <netiso/iso.h>
115 # include <netns/ns.h>
118 # include <netccitt/x25.h>
122 # include <arpa/nameser.h>
124 # undef NOERROR /* avoid <sys/streams.h> conflict */
127 # if !defined(NO_DATA)
128 # define NO_DATA NO_ADDRESS
130 #else /* NAMED_BIND */
131 # undef SM_SET_H_ERRNO
132 # define SM_SET_H_ERRNO(err)
133 #endif /* NAMED_BIND */
137 # if !defined(HES_ER_OK) || defined(HESIOD_INTERFACES)
138 # define HESIOD_INIT /* support for the new interface */
142 #if USE_EAI && !defined(ALLOW_255)
145 #if _FFR_EAI && _FFR_EIGHT_BIT_ADDR_OK
146 # error "Cannot enable both of these FFRs: _FFR_EAI _FFR_EIGHT_BIT_ADDR_OK"
149 #if _FFR_OCC && !SM_CONF_SHM
150 # error "_FFR_OCC requires SM_CONF_SHM"
154 # if _FFR_SM_LDAP_DBG && !(LDAPMAP && defined(LBER_OPT_LOG_PRINT_FN))
155 # error "_FFR_SM_LDAP_DBG requires LDAPMAP and LBER_OPT_LOG_PRINT_FN"
159 #if _FFR_LOG_MORE1 > 1 || _FFR_LOG_MORE2 > 1
160 # if _FFR_LOG_MORE1 != _FFR_LOG_MORE2
161 # error "_FFR_LOG_MORE1 != _FFR_LOG_MORE2"
166 # if LDAP_NETWORK_TIMEOUT && !(LDAPMAP && defined(LDAP_OPT_NETWORK_TIMEOUT))
167 # error "LDAP_NETWORK_TIMEOUT requires LDAPMAP"
172 # if LDAP_REFERRALS && !LDAPMAP
173 # error "LDAP_REFERRALS requires LDAPMAP"
177 #if _FFR_VRFY_TRUSTED_FIRST && !defined(X509_V_FLAG_TRUSTED_FIRST)
178 # error "_FFR_VRFY_TRUSTED_FIRST set but X509_V_FLAG_TRUSTED_FIRST not defined"
182 # define MAXNAME_I ((MAXNAME) * 2)
184 # define MAXNAME_I MAXNAME
187 #if !defined(_FFR_M_ONLY_IPV4)
188 # define _FFR_M_ONLY_IPV4 1
191 #define SM_IS_EMPTY(s) (NULL == (s) || '\0' == *(s))
195 # define DANE_FP_LOG_LEN 256
196 # define DANE_FP_DBG_LEN 4096
197 struct dane_vrfy_ctx_S
199 /* see tls.h: values for DANE option and dane_vrfy_chk */
204 /* use OpenSSL functions for DANE checks? */
205 bool dane_vrfy_dane_enabled;
207 /* look up TLSA RRs, SNI unless dane_tlsa_sni is set. */
208 char *dane_vrfy_host;
209 char *dane_vrfy_sni; /* if not NULL: use for SNI */
211 /* fingerprint in printable format - just for logging */
212 char dane_vrfy_fp[DANE_FP_LOG_LEN];
215 typedef struct dane_tlsa_S dane_tlsa_T, *dane_tlsa_P;
216 typedef struct dane_vrfy_ctx_S dane_vrfy_ctx_T, *dane_vrfy_ctx_P;
220 /* TLS information context */
223 /* use unsigned long? */
224 BITMAP256 tlsi_flags;
226 dane_vrfy_ctx_T tlsi_dvc;
229 typedef struct tlsi_ctx_S tlsi_ctx_T, *tlsi_ctx_P;
231 /* TLS information context flags */
232 #define TLSI_FL_CRLREQ 'R' /* CRL required */
233 #define TLSI_FL_FB2CLR 'C' /* fall back to clear text is ok */
234 #define TLSI_FL_NOFB2CLR 'c' /* do not fall back to clear text */
235 #define TLSI_FL_NODANE 'd' /* do not use/look up DANE */
236 #define TLSI_FL_NOSTS 'M' /* do not use/look up STS */
238 #define TLSI_FL_STS_NOFB2CLR 0x01 /* no clear text: STS is used */
239 #define SM_TLSI_IS(tlsi_ctx, flag) \
240 (((tlsi_ctx) != NULL) && bitnset((flag), (tlsi_ctx)->tlsi_flags))
242 /* ugly hack, is it worth using different values? */
243 # if _FFR_LOG_MORE1 > 1 || _FFR_LOG_MORE2 > 1
244 # define LOG_MORE_2(buf, bp) \
245 p = macvalue(macid("{tls_version}"), e); \
246 if (SM_IS_EMPTY(p)) \
248 (void) sm_snprintf(bp, SPACELEFT(buf, bp), ", tls_version=%.10s", p); \
250 p = macvalue(macid("{cipher}"), e); \
251 if (SM_IS_EMPTY(p)) \
253 (void) sm_snprintf(bp, SPACELEFT(buf, bp), ", cipher=%.20s", p); \
256 # define LOG_MORE_2(buf, bp)
259 # define LOG_MORE(buf, bp) \
260 p = macvalue(macid("{verify}"), e); \
261 if (SM_IS_EMPTY(p)) \
263 (void) sm_snprintf(bp, SPACELEFT(buf, bp), ", tls_verify=%.20s", p); \
268 # define LOG_MORE(buf, bp)
269 #endif /* STARTTLS */
272 /* include the sasl include files if we have them */
273 # if SASL == 2 || SASL >= 20000
274 # include <sasl/sasl.h>
275 # include <sasl/saslplug.h>
276 # include <sasl/saslutil.h>
277 # if SASL_VERSION_FULL < 0x020119
278 typedef int (*sasl_callback_ft)(void);
280 # else /* SASL == 2 || SASL >= 20000 */
282 # include <saslutil.h>
283 typedef int (*sasl_callback_ft)(void);
284 # endif /* SASL == 2 || SASL >= 20000 */
285 # if defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP)
286 # define SASL_VERSION (SASL_VERSION_MAJOR * 10000) + (SASL_VERSION_MINOR * 100) + SASL_VERSION_STEP
287 # if SASL == 1 || SASL == 2
289 # define SASL SASL_VERSION
290 # else /* SASL == 1 || SASL == 2 */
291 # if SASL != SASL_VERSION
292 # error "README: -DSASL (SASL) does not agree with the version of the CYRUS_SASL library (SASL_VERSION)"
293 # error "README: see README!"
294 # endif /* SASL != SASL_VERSION */
295 # endif /* SASL == 1 || SASL == 2 */
296 # else /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */
298 # error "README: please set -DSASL to the version of the CYRUS_SASL library"
299 # error "README: see README!"
300 # endif /* SASL == 1 */
301 # endif /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */
305 ** Following are "sort of" configuration constants, but they should
306 ** be pretty solid on most architectures today. They have to be
307 ** defined after <arpa/nameser.h> because some versions of that
308 ** file also define them. In all cases, we can't use sizeof because
309 ** some systems (e.g., Crays) always treat everything as being at
314 # define INADDRSZ 4 /* size of an IPv4 address in bytes */
317 # define IN6ADDRSZ 16 /* size of an IPv6 address in bytes */
320 # define INT16SZ 2 /* size of a 16 bit integer in bytes */
323 # define INT32SZ 4 /* size of a 32 bit integer in bytes */
325 #ifndef INADDR_LOOPBACK
326 # define INADDR_LOOPBACK 0x7f000001 /* loopback address */
330 ** Error return from inet_addr(3), in case not defined in /usr/include.
334 # define INADDR_NONE 0xffffffff
337 /* By default use uncompressed IPv6 address format (no "::") */
342 /* (f)open() modes for queue files */
345 #define SM_ARRAY_SIZE(array) (sizeof(array) / sizeof((array)[0]))
348 ** An 'argument class' describes the storage allocation status
349 ** of an object pointed to by an argument to a function.
354 A_HEAP, /* the storage was allocated by malloc, and the
355 * ownership of the storage is ceded by the caller
356 * to the called function. */
357 A_TEMP, /* The storage is temporary, and is only guaranteed
358 * to be valid for the duration of the function call. */
359 A_PERM /* The storage is 'permanent': this might mean static
360 * storage, or rpool storage. */
363 /* forward references for prototypes */
364 typedef struct envelope ENVELOPE;
365 typedef struct mailer MAILER;
366 typedef struct queuegrp QUEUEGRP;
369 ** Address structure.
370 ** Addresses are stored internally in this structure.
375 char *q_paddr; /* the printname for the address */
376 char *q_user; /* user name */
377 char *q_ruser; /* real user name, or NULL if q_user */
378 char *q_host; /* host name [x] */
380 char *q_qname; /* original query (host) name */
382 struct mailer *q_mailer; /* mailer to use */
383 unsigned long q_flags; /* status flags, see below */
384 uid_t q_uid; /* user-id of receiver (if known) */
385 gid_t q_gid; /* group-id of receiver (if known) */
386 char *q_home; /* home dir (local mailer only) */
387 char *q_fullname; /* full name if known */
388 struct address *q_next; /* chain */
389 struct address *q_alias; /* address this results from */
390 char *q_owner; /* owner of q_alias */
391 struct address *q_tchain; /* temporary use chain */
393 struct address *q_pchain; /* chain for pipelining */
395 char *q_finalrcpt; /* Final-Recipient: DSN header */
396 char *q_orcpt; /* ORCPT parameter from RCPT TO: line */
397 char *q_status; /* status code for DSNs */
398 char *q_rstatus; /* remote status message for DSNs */
399 time_t q_statdate; /* date of status messages */
400 char *q_statmta; /* MTA generating q_rstatus */
401 short q_state; /* address state, see below */
402 char *q_signature; /* MX-based sorting value */
403 int q_qgrp; /* index into queue groups */
404 char *q_message; /* error message */
407 typedef struct address ADDRESS;
411 ** Note: only some of the flags are saved in the queue;
412 ** the code in queue.c does not use the actual value but maps each flag
413 ** to/from an associated character.
414 ** If the values would not change then those could be stored/retrieved
415 ** directly (applying a mask to select those flags which should be kep) --
416 ** the mapping to/from characters provides a "defined" external interface
417 ** provided those mappings are kept (and if an old mapping is removed then
418 ** it should be kept as comment so it is not reused "too soon").
421 /* bit values for q_flags */
422 #define QGOODUID 0x00000001 /* the q_uid q_gid fields are good */
423 #define QPRIMARY 0x00000002 /* set from RCPT or argv */
424 #define QNOTREMOTE 0x00000004 /* address not for remote forwarding */
425 #define QSELFREF 0x00000008 /* this address references itself */
426 #define QBOGUSSHELL 0x00000010 /* user has no valid shell listed */
427 #define QUNSAFEADDR 0x00000020 /* address acquired via unsafe path */
428 #define QPINGONSUCCESS 0x00000040 /* give return on successful delivery */
429 #define QPINGONFAILURE 0x00000080 /* give return on failure */
430 #define QPINGONDELAY 0x00000100 /* give return on message delay */
431 #define QHASNOTIFY 0x00000200 /* propagate notify parameter */
432 #define QRELAYED 0x00000400 /* DSN: relayed to non-DSN aware sys */
433 #define QEXPANDED 0x00000800 /* DSN: undergone list expansion */
434 #define QDELIVERED 0x00001000 /* DSN: successful final delivery */
435 #define QDELAYED 0x00002000 /* DSN: message delayed */
436 #define QALIAS 0x00004000 /* expanded alias */
437 #define QBYTRACE 0x00008000 /* DeliverBy: trace */
438 #define QBYNDELAY 0x00010000 /* DeliverBy: notify, delay */
439 #define QBYNRELAY 0x00020000 /* DeliverBy: notify, relayed */
440 #define QINTBCC 0x00040000 /* internal Bcc */
441 #define QDYNMAILER 0x00080000 /* "dynamic mailer" */
442 #define QSECURE 0x00100000 /* DNSSEC ok for host lookup */
443 #define QQUEUED 0x00200000 /* queued */
444 #define QINTREPLY 0x00400000 /* internally rejected (delivery) */
445 #define QMXSECURE 0x00800000 /* DNSSEC ok for MX lookup */
446 #define QTHISPASS 0x40000000 /* temp: address set this pass */
447 #define QRCPTOK 0x80000000 /* recipient() processed address */
449 #define QDYNMAILFLG 'Y'
451 #define Q_PINGFLAGS (QPINGONSUCCESS|QPINGONFAILURE|QPINGONDELAY)
453 #define QISSECURE(r) (0 != ((r)->q_flags & QSECURE))
456 # define QMATCHFLAGS (QINTBCC|QDYNMAILER)
457 # define QMATCH_FLAG(a) ((a)->q_flags & QMATCHFLAGS)
458 # define ADDR_FLAGS_MATCH(a, b) (QMATCH_FLAG(a) == QMATCH_FLAG(b))
460 # define ADDR_FLAGS_MATCH(a, b) true
463 /* values for q_state */
464 #define QS_OK 0 /* address ok (for now)/not yet tried */
465 #define QS_SENT 1 /* good address, delivery complete */
466 #define QS_BADADDR 2 /* illegal address */
467 #define QS_QUEUEUP 3 /* save address in queue */
468 #define QS_RETRY 4 /* retry delivery for next MX */
469 #define QS_VERIFIED 5 /* verified, but not expanded */
472 ** Notice: all of the following values are variations of QS_DONTSEND.
473 ** If new states are added, they must be inserted in the proper place!
474 ** See the macro definition of QS_IS_DEAD() down below.
477 #define QS_DONTSEND 6 /* don't send to this address */
478 #define QS_EXPANDED 7 /* expanded */
479 #define QS_SENDER 8 /* message sender (MeToo) */
480 #define QS_CLONED 9 /* addr cloned to split envelope */
481 #define QS_DISCARDED 10 /* rcpt discarded (EF_DISCARD) */
482 #define QS_REPLACED 11 /* maplocaluser()/UserDB replaced */
483 #define QS_REMOVED 12 /* removed (removefromlist()) */
484 #define QS_DUPLICATE 13 /* duplicate suppressed */
485 #define QS_INCLUDED 14 /* :include: delivery */
486 #define QS_FATALERR 15 /* fatal error, don't deliver */
488 /* address state testing primitives */
489 #define QS_IS_OK(s) ((s) == QS_OK)
490 #define QS_IS_SENT(s) ((s) == QS_SENT)
491 #define QS_IS_BADADDR(s) ((s) == QS_BADADDR)
492 #define QS_IS_QUEUEUP(s) ((s) == QS_QUEUEUP)
493 #define QS_IS_RETRY(s) ((s) == QS_RETRY)
494 #define QS_IS_VERIFIED(s) ((s) == QS_VERIFIED)
495 #define QS_IS_EXPANDED(s) ((s) == QS_EXPANDED)
496 #define QS_IS_REMOVED(s) ((s) == QS_REMOVED)
497 #define QS_IS_UNDELIVERED(s) ((s) == QS_OK || \
498 (s) == QS_QUEUEUP || \
501 #define QS_IS_UNMARKED(s) ((s) == QS_OK || \
503 #define QS_IS_SENDABLE(s) ((s) == QS_OK || \
504 (s) == QS_QUEUEUP || \
506 #define QS_IS_ATTEMPTED(s) ((s) == QS_QUEUEUP || \
510 #define QS_IS_DEAD(s) ((s) >= QS_DONTSEND)
511 #define QS_IS_TEMPFAIL(s) ((s) == QS_QUEUEUP || (s) == QS_RETRY)
513 #define QUP_FL_NONE 0x0000
514 #define QUP_FL_ANNOUNCE 0x0001
515 #define QUP_FL_MSYNC 0x0002
516 #define QUP_FL_UNLOCK 0x0004
518 #define NULLADDR ((ADDRESS *) NULL)
520 extern ADDRESS NullAddress; /* a null (template) address [main.c] */
523 #define NOSPACESEP 256
526 extern void cataddr __P((char **, char **, char *, int, int, bool));
527 extern char *crackaddr __P((char *, ENVELOPE *));
528 extern bool emptyaddr __P((ADDRESS *));
529 extern ADDRESS *getctladdr __P((ADDRESS *));
530 extern int include __P((char *, bool, ADDRESS *, ADDRESS **, int, ENVELOPE *));
531 extern bool invalidaddr __P((char *, char *, bool));
532 extern ADDRESS *parseaddr __P((char *, ADDRESS *, int, int, char **,
534 extern char **prescan __P((char *, int, char[], int, char **, unsigned char *, bool));
535 extern void printaddr __P((SM_FILE_T *, ADDRESS *, bool));
536 extern ADDRESS *recipient __P((ADDRESS *, ADDRESS **, int, ENVELOPE *));
537 extern char *remotename __P((char *, MAILER *, int, int *, ENVELOPE *));
538 extern int rewrite __P((char **, int, int, ENVELOPE *, int));
539 extern bool sameaddr __P((ADDRESS *, ADDRESS *));
540 extern int sendtolist __P((char *, ADDRESS *, ADDRESS **, int, ENVELOPE *));
542 extern int removefromlist __P((char *, ADDRESS **, ENVELOPE *));
544 extern void setsender __P((char *, ENVELOPE *, char **, int, bool));
545 typedef void esmtp_args_F __P((ADDRESS *, char *, char *, ENVELOPE *));
546 extern void parse_esmtp_args __P((ENVELOPE *, ADDRESS *, char *, char *,
547 char *, char *args[], esmtp_args_F));
548 extern esmtp_args_F mail_esmtp_args;
549 extern esmtp_args_F rcpt_esmtp_args;
550 extern void reset_mail_esmtp_args __P((ENVELOPE *));
552 /* macro to simplify the common call to rewrite() */
553 #define REWRITE(pvp, rs, env) rewrite(pvp, rs, 0, env, MAXATOM)
556 ** Token Tables for prescan
559 extern unsigned char ExtTokenTab[256]; /* external strings */
560 extern unsigned char IntTokenTab[256]; /* internal strings */
564 ** Mailer definition structure.
565 ** Every mailer known to the system is declared in this
566 ** structure. It defines the pathname of the mailer, some
567 ** flags associated with it, and the argument vector to
568 ** pass to it. The flags are defined in conf.c
570 ** The argument vector is expanded before actual use. All
571 ** words except the first are passed through the macro
577 char *m_name; /* symbolic name of this mailer */
578 char *m_mailer; /* pathname of the mailer to use */
579 char *m_mtatype; /* type of this MTA */
580 char *m_addrtype; /* type for addresses */
581 char *m_diagtype; /* type for diagnostics */
582 BITMAP256 m_flags; /* status flags, see below */
583 short m_mno; /* mailer number internally */
584 short m_nice; /* niceness to run at (mostly for prog) */
585 char **m_argv; /* template argument vector */
586 short m_sh_rwset; /* rewrite set: sender header addresses */
587 short m_se_rwset; /* rewrite set: sender envelope addresses */
588 short m_rh_rwset; /* rewrite set: recipient header addresses */
589 short m_re_rwset; /* rewrite set: recipient envelope addresses */
590 char *m_eol; /* end of line string */
591 long m_maxsize; /* size limit on message to this mailer */
592 int m_linelimit; /* max # characters per line */
593 int m_maxdeliveries; /* max deliveries per mailer connection */
594 char *m_execdir; /* directory to chdir to before execv */
595 char *m_rootdir; /* directory to chroot to before execv */
596 uid_t m_uid; /* UID to run as */
597 gid_t m_gid; /* GID to run as */
598 char *m_defcharset; /* default character set */
599 time_t m_wait; /* timeout to wait for end */
600 int m_maxrcpt; /* max recipients per envelope client-side */
601 short m_qgrp; /* queue group for this mailer */
603 unsigned short m_port; /* port (if appropriate for mailer) */
607 /* bits for m_flags */
608 #define M_xSMTP 0x01 /* internal: {ES,S,L}MTP */
609 #define M_ESMTP 'a' /* run Extended SMTP */
610 #define M_ALIASABLE 'A' /* user can be LHS of an alias */
611 #define M_BLANKEND 'b' /* ensure blank line at end of message */
612 #define M_STRIPBACKSL 'B' /* strip all leading backslashes from user */
613 #define M_NOCOMMENT 'c' /* don't include comment part of address */
614 #define M_CANONICAL 'C' /* make addresses canonical "u@dom" */
615 #define M_NOBRACKET 'd' /* never angle bracket envelope route-addrs */
616 /* 'D' CF: include Date: */
617 #define M_EXPENSIVE 'e' /* it costs to use this mailer.... */
618 #define M_ESCFROM 'E' /* escape From lines to >From */
619 #define M_FOPT 'f' /* mailer takes picky -f flag */
620 /* 'F' CF: include From: or Resent-From: */
621 #define M_NO_NULL_FROM 'g' /* sender of errors should be $g */
622 #define M_HST_UPPER 'h' /* preserve host case distinction */
623 #define M_PREHEAD 'H' /* MAIL11V3: preview headers */
624 #define M_UDBENVELOPE 'i' /* do udbsender rewriting on envelope */
625 #define M_INTERNAL 'I' /* SMTP to another sendmail site */
626 #define M_UDBRECIPIENT 'j' /* do udbsender rewriting on recipient lines */
627 #define M_NOLOOPCHECK 'k' /* don't check for loops in HELO command */
628 #define M_CHUNKING 'K' /* CHUNKING: reserved for future use */
629 #define M_LOCALMAILER 'l' /* delivery is to this host */
630 #define M_LIMITS 'L' /* must enforce SMTP line limits */
631 #define M_MUSER 'm' /* can handle multiple users at once */
632 /* 'M' CF: include Message-Id: */
633 #define M_NHDR 'n' /* don't insert From line */
634 #define M_MANYSTATUS 'N' /* MAIL11V3: DATA returns multi-status */
635 #define M_RUNASRCPT 'o' /* always run mailer as recipient */
637 #define M_FROMPATH 'p' /* use reverse-path in MAIL FROM: */
638 /* 'P' CF: include Return-Path: */
639 #define M_VRFY250 'q' /* VRFY command returns 250 instead of 252 */
640 #define M_ROPT 'r' /* mailer takes picky -r flag */
641 #define M_SECURE_PORT 'R' /* try to send on a reserved TCP port */
642 #define M_STRIPQ 's' /* strip quote chars from user/host */
643 #define M_SPECIFIC_UID 'S' /* run as specific uid/gid */
644 #define M_USR_UPPER 'u' /* preserve user case distinction */
645 #define M_UGLYUUCP 'U' /* this wants an ugly UUCP from line */
646 #define M_CONTENT_LEN 'v' /* add Content-Length: header (SVr4) */
647 /* 'V' UIUC: !-relativize all addresses */
648 #define M_HASPWENT 'w' /* check for /etc/passwd entry */
649 #define M_NOHOSTSTAT 'W' /* ignore long term host status information */
650 /* 'x' CF: include Full-Name: */
651 #define M_XDOT 'X' /* use hidden-dot algorithm */
654 #define M_LMTP 'z' /* run Local Mail Transport Protocol */
655 #define M_DIALDELAY 'Z' /* apply dial delay sleeptime */
656 #define M_NOMX '0' /* turn off MX lookups */
657 #define M_NONULLS '1' /* don't send null bytes */
658 #define M_FSMTP '2' /* force SMTP (no ESMTP even if offered) */
659 #define M_EBCDIC '3' /* extend Q-P encoding for EBCDIC */
660 #define M_ONLY_IPV4 '4' /* Use only IPv4 */
661 #define M_TRYRULESET5 '5' /* use ruleset 5 after local aliasing */
662 #define M_7BITHDRS '6' /* strip headers to 7 bits even in 8 bit path */
663 #define M_7BITS '7' /* use 7-bit path */
664 #define M_8BITS '8' /* force "just send 8" behaviour */
665 #define M_MAKE8BIT '9' /* convert 7 -> 8 bit if appropriate */
666 #define M_CHECKINCLUDE ':' /* check for :include: files */
667 #define M_CHECKPROG '|' /* check for |program addresses */
668 #define M_CHECKFILE '/' /* check for /file addresses */
669 #define M_CHECKUDB '@' /* user can be user database key */
670 #define M_CHECKHDIR '~' /* SGI: check for valid home directory */
671 #define M_HOLD '%' /* Hold delivery until ETRN/-qI/-qR/-qS */
672 #define M_PLUS '+' /* Reserved: Used in mc for adding new flags */
673 #define M_MINUS '-' /* Reserved: Used in mc for removing flags */
674 #define M_NOMHHACK '!' /* Don't perform HM hack dropping explicit from */
675 #if _FFR_SMTPS_CLIENT
676 # define M_SMTPS_CLIENT '_' /* use SMTP over TLS (465/TCP) */
680 extern void initerrmailers __P((void));
681 extern void makemailer __P((char *));
682 extern void makequeue __P((char *, bool));
683 extern void runqueueevent __P((int));
684 #if _FFR_QUEUE_RUN_PARANOIA
685 extern bool checkqueuerunner __P((void));
688 EXTERN MAILER *FileMailer; /* ptr to *file* mailer */
689 EXTERN MAILER *InclMailer; /* ptr to *include* mailer */
690 EXTERN MAILER *LocalMailer; /* ptr to local mailer */
691 EXTERN MAILER *ProgMailer; /* ptr to program mailer */
693 EXTERN MAILER *Mailer[MAXMAILERS * 2 + 1];
695 EXTERN MAILER *Mailer[MAXMAILERS + 1];
699 ** Queue group definition structure.
700 ** Every queue group known to the system is declared in this structure.
701 ** It defines the basic pathname of the queue group, some flags
702 ** associated with it, and the argument vector to pass to it.
707 char *qp_name; /* name of queue dir, relative path */
708 short qp_subdirs; /* use subdirs? */
709 short qp_fsysidx; /* file system index of this directory */
711 int qp_idx; /* index into array for queue information */
715 typedef struct qpaths_s QPATHS;
719 char *qg_name; /* symbolic name of this queue group */
722 ** For now this is the same across all queue groups.
723 ** Otherwise we have to play around with chdir().
726 char *qg_qdir; /* common component of queue directory */
727 short qg_index; /* queue number internally, index in Queue[] */
728 int qg_maxqrun; /* max # of jobs in one queuerun */
729 int qg_numqueues; /* number of queues in this queue group */
732 ** qg_queueintvl == 0 denotes that no individual value is used.
733 ** Whatever accesses this must deal with "<= 0" as
734 ** "not set, use appropriate default".
737 time_t qg_queueintvl; /* interval for queue runs */
738 QPATHS *qg_qpaths; /* list of queue directories */
739 BITMAP256 qg_flags; /* status flags, see below */
740 short qg_nice; /* niceness for queue run */
741 int qg_wgrp; /* Assigned to this work group */
742 int qg_maxlist; /* max items in work queue for this group */
743 int qg_curnum; /* current number of queue for queue runs */
744 int qg_maxrcpt; /* max recipients per envelope, 0==no limit */
746 time_t qg_nextrun; /* time for next queue runs */
747 #if _FFR_QUEUE_GROUP_SORTORDER
748 short qg_sortorder; /* how do we sort this queuerun */
751 long qg_wkrcptfact; /* multiplier for # recipients -> priority */
752 long qg_qfactor; /* slope of queue function */
753 bool qg_doqueuerun; /* XXX flag is it time to do a queuerun */
757 /* bits for qg_flags */
758 #define QD_DEFINED ((char) 1) /* queue group has been defined */
759 #define QD_FORK 'f' /* fork queue runs */
761 extern void filesys_update __P((void));
763 extern bool filesys_free __P((long));
771 /* lines in authinfo file or index into SASL_AI_T */
772 # define SASL_WRONG (-1)
773 # define SASL_USER 0 /* authorization id (user) */
774 # define SASL_AUTHID 1 /* authentication id */
775 # define SASL_PASSWORD 2 /* password fuer authid */
776 # define SASL_DEFREALM 3 /* realm to use */
777 # define SASL_MECHLIST 4 /* list of mechanisms to try */
778 # define SASL_ID_REALM 5 /* authid@defrealm */
781 ** Current mechanism; this is just used to convey information between
782 ** invocation of SASL callback functions.
783 ** It must be last in the list, because it's not allocated by us
784 ** and hence we don't free() it.
787 # define SASL_ENTRIES 7 /* number of entries in array */
789 # define SASL_USER_BIT (1 << SASL_USER)
790 # define SASL_AUTHID_BIT (1 << SASL_AUTHID)
791 # define SASL_PASSWORD_BIT (1 << SASL_PASSWORD)
792 # define SASL_DEFREALM_BIT (1 << SASL_DEFREALM)
793 # define SASL_MECHLIST_BIT (1 << SASL_MECHLIST)
796 # define SASL_NOT_AUTH 0 /* not authenticated */
797 # define SASL_PROC_AUTH 1 /* in process of authenticating */
798 # define SASL_IS_AUTH 2 /* authenticated */
801 # define SASL_AUTH_AUTH 0x10000 /* use auth= only if authenticated */
803 # define SASL_SEC_MASK SASL_SEC_MAXIMUM /* mask for SASL_SEC_* values: sasl.h */
804 # else /* SASL >= 20101 */
805 # define SASL_SEC_MASK 0x0fff /* mask for SASL_SEC_* values: sasl.h */
806 # if (SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 || \
807 (SASL_SEC_NOACTIVE & SASL_SEC_MASK) == 0 || \
808 (SASL_SEC_NODICTIONARY & SASL_SEC_MASK) == 0 || \
809 (SASL_SEC_FORWARD_SECRECY & SASL_SEC_MASK) == 0 || \
810 (SASL_SEC_NOANONYMOUS & SASL_SEC_MASK) == 0 || \
811 (SASL_SEC_PASS_CREDENTIALS & SASL_SEC_MASK) == 0
812 # error "change SASL_SEC_MASK notify sendmail.org!"
813 # endif /* SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 ... */
814 # endif /* SASL >= 20101 */
815 # define MAXOUTLEN 8192 /* length of output buffer, should be 2^n */
816 # if (SASL_AUTH_AUTH & SASL_SEC_MASK) != 0
817 # error "change SASL_AUTH_AUTH notify sendmail.org!"
821 extern char *intersect __P((char *, char *, SM_RPOOL_T *));
822 extern char *iteminlist __P((char *, char *, char *));
824 extern int proxy_policy __P((sasl_conn_t *, void *, const char *, unsigned, const char *, unsigned, const char *, unsigned, struct propctx *));
825 extern int safesaslfile __P((void *, const char *, sasl_verify_type_t));
826 # else /* SASL >= 20000 */
827 extern int proxy_policy __P((void *, const char *, const char *, const char **, const char **));
829 extern int safesaslfile __P((void *, char *, int));
830 # else /* SASL > 10515 */
831 extern int safesaslfile __P((void *, char *));
832 # endif /* SASL > 10515 */
833 # endif /* SASL >= 20000 */
834 extern void stop_sasl_client __P((void));
836 /* structure to store authinfo */
837 typedef char *SASL_AI_T[SASL_ENTRIES];
839 EXTERN char *AuthMechanisms; /* AUTH mechanisms */
840 EXTERN char *AuthRealm; /* AUTH realm */
841 EXTERN char *SASLInfo; /* file with AUTH info */
842 EXTERN int SASLOpts; /* options for SASL */
843 EXTERN int MaxSLBits; /* max. encryption bits for SASL */
847 ** Structure to store macros.
851 SM_RPOOL_T *mac_rpool; /* resource pool */
852 BITMAP256 mac_allocated; /* storage has been alloc()? */
853 char *mac_table[MAXMACROID + 1]; /* macros */
856 EXTERN MACROS_T GlobalMacros;
859 ** Information about currently open connections to mailers, or to
860 ** hosts that we have looked up recently.
863 #define MCI struct mailer_con_info
867 unsigned long mci_flags; /* flag bits, see below */
868 short mci_errno; /* error number on last connection */
869 short mci_herrno; /* h_errno from last DNS lookup */
870 short mci_exitstat; /* exit status from last connection */
871 short mci_state; /* SMTP state */
872 int mci_deliveries; /* delivery attempts for connection */
873 long mci_maxsize; /* max size this server will accept */
874 SM_FILE_T *mci_in; /* input side of connection */
875 SM_FILE_T *mci_out; /* output side of connection */
876 pid_t mci_pid; /* process id of subordinate proc */
877 char *mci_phase; /* SMTP phase string */
878 struct mailer *mci_mailer; /* ptr to the mailer for this conn */
879 char *mci_host; /* host name */
880 char *mci_status; /* DSN status to be copied to addrs */
881 char *mci_rstatus; /* SMTP status to be copied to addrs */
882 time_t mci_lastuse; /* last usage time */
883 SM_FILE_T *mci_statfile; /* long term status file */
884 char *mci_heloname; /* name to use as HELO arg */
885 long mci_min_by; /* minimum DELIVERBY */
886 bool mci_retryrcpt; /* tempfail for at least one rcpt */
887 char *mci_tolist; /* list of valid recipients */
888 SM_RPOOL_T *mci_rpool; /* resource pool */
889 int mci_okrcpts; /* number of valid recipients */
891 ADDRESS *mci_nextaddr; /* next address for pipelined status */
894 SASL_AI_T mci_sai; /* authentication info */
895 bool mci_sasl_auth; /* authenticated? */
896 int mci_sasl_string_len;
897 char *mci_sasl_string; /* sasl reply string */
898 char *mci_saslcap; /* SASL list of mechanisms */
899 sasl_conn_t *mci_conn; /* SASL connection */
902 SSL *mci_ssl; /* SSL connection */
905 MACROS_T mci_macro; /* macro definitions */
910 /* XREF: mci.c: MciFlags[]: needs to be kept in sync! */
911 /* 0x00000001 unused, was MCIF_VALID: this entry is valid */
912 #define MCIF_OCC_INCR 0x00000002 /* occ values increased */
913 #define MCIF_CACHED 0x00000004 /* currently in open cache */
914 #define MCIF_ESMTP 0x00000008 /* this host speaks ESMTP */
915 #define MCIF_EXPN 0x00000010 /* EXPN command supported */
916 #define MCIF_SIZE 0x00000020 /* SIZE option supported */
917 #define MCIF_8BITMIME 0x00000040 /* BODY=8BITMIME supported */
918 #define MCIF_7BIT 0x00000080 /* strip this message to 7 bits */
919 /* 0x00000100 unused, was MCIF_MULTSTAT: MAIL11V3: handles MULT status */
920 #define MCIF_INHEADER 0x00000200 /* currently outputting header */
921 #define MCIF_CVT8TO7 0x00000400 /* convert from 8 to 7 bits */
922 #define MCIF_DSN 0x00000800 /* DSN extension supported */
923 #define MCIF_8BITOK 0x00001000 /* OK to send 8 bit characters */
924 #define MCIF_CVT7TO8 0x00002000 /* convert from 7 to 8 bits */
925 #define MCIF_INMIME 0x00004000 /* currently reading MIME header */
926 #define MCIF_AUTH 0x00008000 /* AUTH= supported */
927 #define MCIF_AUTHACT 0x00010000 /* SASL (AUTH) active */
928 #define MCIF_ENHSTAT 0x00020000 /* ENHANCEDSTATUSCODES supported */
929 #define MCIF_PIPELINED 0x00040000 /* PIPELINING supported */
930 #define MCIF_VERB 0x00080000 /* VERB supported */
932 #define MCIF_TLS 0x00100000 /* STARTTLS supported */
933 #define MCIF_TLSACT 0x00200000 /* STARTTLS active */
936 #define MCIF_TLSACT 0
937 #endif /* STARTTLS */
938 #define MCIF_DLVR_BY 0x00400000 /* DELIVERBY */
939 #if _FFR_IGNORE_EXT_ON_HELO
940 # define MCIF_HELO 0x00800000 /* we used HELO: ignore extensions */
942 #define MCIF_INLONGLINE 0x01000000 /* in the middle of a long line */
943 #define MCIF_AUTH2 0x02000000 /* got 2 AUTH lines */
944 #define MCIF_ONLY_EHLO 0x10000000 /* use only EHLO in smtpinit */
945 #if _FFR_HANDLE_HDR_RW_TEMPFAIL
946 /* an error is not sticky (if put{header,body}() etc fail) */
947 # define MCIF_NOTSTICKY 0x20000000
949 # define MCIF_NOTSTICKY 0
952 # define MCIF_EAI 0x40000000 /* SMTPUTF8 supported */
954 # define MCIF_EAI 0x00000000 /* for MCIF_EXTENS */
957 #define MCIF_EXTENS (MCIF_EXPN|MCIF_SIZE|MCIF_8BITMIME|MCIF_DSN|MCIF_8BITOK|MCIF_AUTH|MCIF_ENHSTAT|MCIF_PIPELINED|MCIF_VERB|MCIF_TLS|MCIF_DLVR_BY|MCIF_AUTH2|MCIF_EAI)
960 /* XREF: deliver.c: mcis[] -- any changes here must be reflected there! */
961 #define MCIS_CLOSED 0 /* no traffic on this connection */
962 #define MCIS_OPENING 1 /* sending initial protocol */
963 #define MCIS_OPEN 2 /* open, initial protocol sent */
964 #define MCIS_MAIL 3 /* MAIL command sent */
965 #define MCIS_RCPT 4 /* RCPT commands being sent */
966 #define MCIS_DATA 5 /* DATA command sent */
967 #define MCIS_QUITING 6 /* running quit protocol */
968 #define MCIS_SSD 7 /* service shutting down */
969 #define MCIS_ERROR 8 /* I/O error on connection */
972 extern void mci_cache __P((MCI *));
973 extern void mci_close __P((MCI *, char *where));
974 extern void mci_dump __P((SM_FILE_T *, MCI *, bool));
975 extern void mci_dump_all __P((SM_FILE_T *, bool));
976 extern void mci_flush __P((bool, MCI *));
977 extern void mci_clr_extensions __P((MCI *));
978 extern MCI *mci_get __P((char *, MAILER *));
979 extern int mci_lock_host __P((MCI *));
980 extern bool mci_match __P((char *, MAILER *));
981 extern int mci_print_persistent __P((char *, char *));
982 extern int mci_purge_persistent __P((char *, char *));
983 extern MCI **mci_scan __P((MCI *));
984 extern void mci_setstat __P((MCI *, int, char *, char *));
985 extern void mci_store_persistent __P((MCI *));
986 extern int mci_traverse_persistent __P((int (*)(char *, char *), char *));
987 extern void mci_unlock_host __P((MCI *));
989 EXTERN int MaxMciCache; /* maximum entries in MCI cache */
990 EXTERN time_t MciCacheTimeout; /* maximum idle time on connections */
991 EXTERN time_t MciInfoTimeout; /* how long 'til we retry down hosts */
995 ** This structure is used internally to store header items.
1000 char *h_field; /* the name of the field */
1001 char *h_value; /* the value of that field */
1002 struct header *h_link; /* the next header */
1003 unsigned char h_macro; /* include header if macro defined */
1004 unsigned long h_flags; /* status bits, see below */
1005 BITMAP256 h_mflags; /* m_flags bits needed */
1008 typedef struct header HDR;
1011 ** Header information structure.
1012 ** Defined in conf.c, this struct declares the header fields
1013 ** that have some magic meaning.
1018 char *hi_field; /* the name of the field */
1019 unsigned long hi_flags; /* status bits, see below */
1020 char *hi_ruleset; /* validity check ruleset */
1023 extern struct hdrinfo HdrInfo[];
1025 /* bits for h_flags and hi_flags */
1026 #define H_EOH 0x00000001 /* field terminates header */
1027 #define H_RCPT 0x00000002 /* contains recipient addresses */
1028 #define H_DEFAULT 0x00000004 /* if another value is found, drop this */
1029 #define H_RESENT 0x00000008 /* this address is a "Resent-..." address */
1030 #define H_CHECK 0x00000010 /* check h_mflags against m_flags */
1031 #define H_ACHECK 0x00000020 /* ditto, but always (not just default) */
1032 #define H_FORCE 0x00000040 /* force this field, even if default */
1033 #define H_TRACE 0x00000080 /* this field contains trace information */
1034 #define H_FROM 0x00000100 /* this is a from-type field */
1035 #define H_VALID 0x00000200 /* this field has a validated value */
1036 #define H_RECEIPTTO 0x00000400 /* field has return receipt info */
1037 #define H_ERRORSTO 0x00000800 /* field has error address info */
1038 #define H_CTE 0x00001000 /* field is a content-transfer-encoding */
1039 #define H_CTYPE 0x00002000 /* this is a content-type field */
1040 #define H_BCC 0x00004000 /* Bcc: header: strip value or delete */
1041 #define H_ENCODABLE 0x00008000 /* field can be RFC 1522 encoded */
1042 #define H_STRIPCOMM 0x00010000 /* header check: strip comments */
1043 #define H_BINDLATE 0x00020000 /* only expand macros at deliver */
1044 #define H_USER 0x00040000 /* header came from the user/SMTP */
1046 # define H_ASIS 0x10000000
1049 /* bits for chompheader() */
1050 #define CHHDR_DEF 0x0001 /* default header */
1051 #define CHHDR_CHECK 0x0002 /* call ruleset for header */
1052 #define CHHDR_USER 0x0004 /* header from user */
1053 #define CHHDR_QUEUE 0x0008 /* header from queue file */
1056 extern void addheader __P((char *, char *, int, ENVELOPE *, bool));
1057 extern unsigned long chompheader __P((char *, int, HDR **, ENVELOPE *));
1058 extern bool commaize __P((HDR *, char *, bool, MCI *, ENVELOPE *, int));
1059 extern HDR *copyheader __P((HDR *, SM_RPOOL_T *));
1060 extern void eatheader __P((ENVELOPE *, bool, bool));
1061 extern char *hvalue __P((char *, HDR *));
1062 extern void insheader __P((int, char *, char *, int, ENVELOPE *, bool));
1063 extern bool isheader __P((char *));
1064 extern bool putfromline __P((MCI *, ENVELOPE *));
1065 extern void setupheaders __P((void));
1068 ** Performance monitoring
1071 #define TIMERS struct sm_timers
1075 TIMER ti_overall; /* the whole process */
1078 #define PUSHTIMER(l, t) { if (tTd(98, l)) pushtimer(&t); }
1079 #define POPTIMER(l, t) { if (tTd(98, l)) poptimer(&t); }
1082 ** Envelope structure.
1083 ** This structure defines the message itself. There is usually
1084 ** only one of these -- for the message that we originally read
1085 ** and which is our primary interest -- but other envelopes can
1086 ** be generated during processing. For example, error messages
1087 ** will have their own envelope.
1092 HDR *e_header; /* head of header list */
1093 long e_msgpriority; /* adjusted priority of this message */
1094 time_t e_ctime; /* time message appeared in the queue */
1095 char *e_to; /* (list of) target person(s) */
1096 ADDRESS e_from; /* the person it is from */
1097 char *e_sender; /* e_from.q_paddr w comments stripped */
1098 char **e_fromdomain; /* the domain part of the sender */
1100 bool e_smtputf8; /* requires SMTPUTF8? */
1102 ADDRESS *e_sendqueue; /* list of message recipients */
1103 ADDRESS *e_errorqueue; /* the queue for error responses */
1106 ** Overflow detection is based on < 0, so don't change this
1107 ** to unsigned. We don't use unsigned and == ULONG_MAX because
1108 ** some libc's don't have strtoul(), see mail_esmtp_args().
1111 long e_msgsize; /* size of the message in bytes */
1112 char *e_msgid; /* message id (for logging) */
1113 unsigned long e_flags; /* flags, see below */
1114 int e_nrcpts; /* number of recipients */
1115 short e_class; /* msg class (priority, junk, etc.) */
1116 short e_hopcount; /* number of times processed */
1117 short e_nsent; /* number of sends since checkpoint */
1118 short e_sendmode; /* message send mode */
1119 short e_errormode; /* error return mode */
1120 short e_timeoutclass; /* message timeout class */
1121 bool (*e_puthdr)__P((MCI *, HDR *, ENVELOPE *, int));
1122 /* function to put header of message */
1123 bool (*e_putbody)__P((MCI *, ENVELOPE *, char *));
1124 /* function to put body of message */
1125 ENVELOPE *e_parent; /* the message this one encloses */
1126 ENVELOPE *e_sibling; /* the next envelope of interest */
1127 char *e_bodytype; /* type of message body */
1128 SM_FILE_T *e_dfp; /* data file */
1129 char *e_id; /* code for this entry in queue */
1131 char *e_sessid; /* session ID for this envelope */
1133 int e_qgrp; /* queue group (index into queues) */
1134 int e_qdir; /* index into queue directories */
1135 int e_dfqgrp; /* data file queue group index */
1136 int e_dfqdir; /* data file queue directory index */
1137 int e_xfqgrp; /* queue group (index into queues) */
1138 int e_xfqdir; /* index into queue directories (xf) */
1139 SM_FILE_T *e_xfp; /* transcript file */
1140 SM_FILE_T *e_lockfp; /* the lock file for this message */
1141 char *e_message; /* error message; readonly; NULL,
1142 * or allocated from e_rpool */
1143 char *e_statmsg; /* stat msg (changes per delivery).
1144 * readonly. NULL or allocated from
1146 char *e_quarmsg; /* why envelope is quarantined */
1147 char e_qfletter; /* queue file letter on disk */
1148 char *e_msgboundary; /* MIME-style message part boundary */
1149 char *e_origrcpt; /* original recipient (one only) */
1150 char *e_envid; /* envelope id from MAIL FROM: line */
1151 char *e_status; /* DSN status for this message */
1152 time_t e_dtime; /* time of last delivery attempt */
1153 int e_ntries; /* number of delivery attempts */
1154 dev_t e_dfdev; /* data file device (crash recovery) */
1155 ino_t e_dfino; /* data file inode (crash recovery) */
1156 MACROS_T e_macro; /* macro definitions */
1157 MCI *e_mci; /* connection info */
1158 char *e_auth_param; /* readonly; NULL or static storage or
1159 * allocated from e_rpool */
1161 TIMERS e_timers; /* per job timers */
1163 long e_deliver_by; /* deliver by */
1164 int e_dlvr_flag; /* deliver by flag */
1165 SM_RPOOL_T *e_rpool; /* resource pool for this envelope */
1166 unsigned long e_features; /* server features */
1167 #define ENHSC_LEN 11
1168 #if _FFR_MILTER_ENHSC
1169 char e_enhsc[ENHSC_LEN]; /* enhanced status code */
1171 /* smtp error codes during delivery */
1172 int e_rcode; /* reply code */
1173 char e_renhsc[ENHSC_LEN]; /* enhanced status code */
1174 char *e_text; /* reply text */
1176 int e_estate; /* protocol state when error happened */
1180 #define PRT_NONNEGL(v) ((v) < 0 ? LONG_MAX : (v))
1182 /* values for e_flags */
1183 #define EF_OLDSTYLE 0x00000001L /* use spaces (not commas) in hdrs */
1184 #define EF_INQUEUE 0x00000002L /* this message is fully queued */
1185 #define EF_NO_BODY_RETN 0x00000004L /* omit message body on error */
1186 #define EF_CLRQUEUE 0x00000008L /* disk copy is no longer needed */
1187 #define EF_SENDRECEIPT 0x00000010L /* send a return receipt */
1188 #define EF_FATALERRS 0x00000020L /* fatal errors occurred */
1189 #define EF_DELETE_BCC 0x00000040L /* delete Bcc: headers entirely */
1190 #define EF_RESPONSE 0x00000080L /* this is an error or return receipt */
1191 #define EF_RESENT 0x00000100L /* this message is being forwarded */
1192 #define EF_VRFYONLY 0x00000200L /* verify only (don't expand aliases) */
1193 #define EF_WARNING 0x00000400L /* warning message has been sent */
1194 #define EF_QUEUERUN 0x00000800L /* this envelope is from queue */
1195 #define EF_GLOBALERRS 0x00001000L /* treat errors as global */
1196 #define EF_PM_NOTIFY 0x00002000L /* send return mail to postmaster */
1197 #define EF_METOO 0x00004000L /* send to me too */
1198 #define EF_LOGSENDER 0x00008000L /* need to log the sender */
1199 #define EF_NORECEIPT 0x00010000L /* suppress all return-receipts */
1200 #define EF_HAS8BIT 0x00020000L /* at least one 8-bit char in body */
1201 /* was: EF_NL_NOT_EOL 0x00040000L * don't accept raw LF as EOLine */
1202 /* was: EF_CRLF_NOT_EOL 0x00080000L * don't accept CRLF as EOLine */
1203 #define EF_RET_PARAM 0x00100000L /* RCPT command had RET argument */
1204 #define EF_HAS_DF 0x00200000L /* set when data file is instantiated */
1205 #define EF_IS_MIME 0x00400000L /* really is a MIME message */
1206 #define EF_DONT_MIME 0x00800000L /* never MIME this message */
1207 #define EF_DISCARD 0x01000000L /* discard the message */
1208 #define EF_TOOBIG 0x02000000L /* message is too big */
1209 #define EF_SPLIT 0x04000000L /* envelope has been split */
1210 #define EF_UNSAFE 0x08000000L /* unsafe: read from untrusted source */
1211 #define EF_TOODEEP 0x10000000L /* message is nested too deep */
1212 #define EF_SECURE 0x20000000L /* DNSSEC for currently parsed addr */
1213 #define EF_7BITBODY 0x40000000L /* strip body to 7bit on input */
1215 #define DLVR_NOTIFY 0x01
1216 #define DLVR_RETURN 0x02
1217 #define DLVR_TRACE 0x10
1218 #define IS_DLVR_NOTIFY(e) (((e)->e_dlvr_flag & DLVR_NOTIFY) != 0)
1219 #define IS_DLVR_RETURN(e) (((e)->e_dlvr_flag & DLVR_RETURN) != 0)
1220 #define IS_DLVR_TRACE(e) (((e)->e_dlvr_flag & DLVR_TRACE) != 0)
1221 #define IS_DLVR_BY(e) ((e)->e_dlvr_flag != 0)
1223 #define BODYTYPE_NONE (0)
1224 #define BODYTYPE_7BIT (1)
1225 #define BODYTYPE_8BITMIME (2)
1226 #define BODYTYPE_ILLEGAL (-1)
1227 #define BODYTYPE_VALID(b) ((b) == BODYTYPE_7BIT || (b) == BODYTYPE_8BITMIME)
1229 extern ENVELOPE BlankEnvelope;
1232 extern void clearenvelope __P((ENVELOPE *, bool, SM_RPOOL_T *));
1233 extern int dropenvelope __P((ENVELOPE *, bool, bool));
1234 extern ENVELOPE *newenvelope __P((ENVELOPE *, ENVELOPE *, SM_RPOOL_T *));
1235 extern void clrsessenvelope __P((ENVELOPE *));
1236 extern void printenvflags __P((ENVELOPE *));
1237 extern bool putbody __P((MCI *, ENVELOPE *, char *));
1238 extern bool putheader __P((MCI *, HDR *, ENVELOPE *, int));
1241 ** Message priority classes.
1243 ** The message class is read directly from the Priority: header
1244 ** field in the message.
1246 ** CurEnv->e_msgpriority is the number of bytes in the message plus
1247 ** the creation time (so that jobs ``tend'' to be ordered correctly),
1248 ** adjusted by the message class, the number of recipients, and the
1249 ** amount of time the message has been sitting around. This number
1250 ** is used to order the queue. Higher values mean LOWER priority.
1252 ** Each priority class point is worth WkClassFact priority points;
1253 ** each recipient is worth WkRecipFact priority points. Each time
1254 ** we reprocess a message the priority is adjusted by WkTimeFact.
1255 ** WkTimeFact should normally decrease the priority so that jobs
1256 ** that have historically failed will be run later; thanks go to
1257 ** Jay Lepreau at Utah for pointing out the error in my thinking.
1259 ** The "class" is this number, unadjusted by the age or size of
1260 ** this message. Classes with negative representations will have
1261 ** error messages thrown away if they are not local.
1266 char *pri_name; /* external name of priority */
1267 int pri_val; /* internal value for same */
1270 EXTERN int NumPriorities; /* pointer into Priorities */
1271 EXTERN struct priority Priorities[MAXPRIORITIES];
1279 char **r_lhs; /* pattern match */
1280 char **r_rhs; /* substitution value */
1281 struct rewrite *r_next;/* next in chain */
1282 int r_line; /* rule line in sendmail.cf */
1286 ** Special characters in rewriting rules.
1287 ** These are used internally only.
1288 ** The COND* rules are actually used in macros rather than in
1289 ** rewriting rules, but are given here because they
1294 ** "out of band" indicator
1295 ** sm/sendmail.h #define METAQUOTE ((unsigned char)0377)
1296 ** quotes the next octet
1297 ** range: ((ch) & 0340) == 0200
1298 ** see #define SM_MM_QUOTE(ch) in libsm/util.c
1301 /* left hand side items */
1302 #define MATCHZANY ((unsigned char)0220) /* match zero or more tokens */
1303 #define MATCHANY ((unsigned char)0221) /* match one or more tokens */
1304 #define MATCHONE ((unsigned char)0222) /* match exactly one token */
1305 #define MATCHCLASS ((unsigned char)0223) /* match one token in a class */
1306 #define MATCHNCLASS ((unsigned char)0224) /* match tokens not in class */
1308 /* right hand side items */
1309 #define MATCHREPL ((unsigned char)0225) /* RHS replacement for above */
1310 #define CANONNET ((unsigned char)0226) /* canonical net, next token */
1311 #define CANONHOST ((unsigned char)0227) /* canonical host, next token */
1312 #define CANONUSER ((unsigned char)0230) /* canonical user, next N tokens */
1313 #define CALLSUBR ((unsigned char)0231) /* call another rewriting set */
1315 /* conditionals in macros (anywhere) */
1316 #define CONDIF ((unsigned char)0232) /* conditional if-then */
1317 #define CONDELSE ((unsigned char)0233) /* conditional else */
1318 #define CONDFI ((unsigned char)0234) /* conditional fi */
1320 /* bracket characters for RHS host name lookup */
1321 #define HOSTBEGIN ((unsigned char)0235) /* hostname lookup begin */
1322 #define HOSTEND ((unsigned char)0236) /* hostname lookup end */
1324 /* bracket characters for RHS generalized lookup */
1325 #define LOOKUPBEGIN ((unsigned char)0205) /* generalized lookup begin */
1326 #define LOOKUPEND ((unsigned char)0206) /* generalized lookup end */
1328 /* macro substitution characters (anywhere) */
1329 #define MACROEXPAND ((unsigned char)0201) /* macro expansion */
1330 #define MACRODEXPAND ((unsigned char)0202) /* deferred macro expansion */
1332 /* to make the code clearer */
1333 #define MATCHZERO CANONHOST
1335 #define MAXMATCH 9 /* max params per rewrite */
1336 #define MAX_MAP_ARGS 10 /* max arguments for map */
1338 /* external <==> internal mapping table */
1341 char metaname; /* external code (after $) */
1342 unsigned char metaval; /* internal code (as above) */
1345 /* values for macros with external names only */
1346 #define MID_OPMODE 0202 /* operation mode */
1351 macdefine_tagged __P((
1359 # define macdefine(mac,c,id,v) \
1360 macdefine_tagged(mac,c,id,v,__FILE__,__LINE__,sm_heap_group())
1361 #else /* SM_HEAP_CHECK */
1368 # define macdefine_tagged(mac,c,id,v,file,line,grp) macdefine(mac,c,id,v)
1369 #endif /* SM_HEAP_CHECK */
1370 extern void macset __P((MACROS_T *, int, char *));
1371 #define macget(mac, i) (mac)->mac_table[i]
1372 extern void expand __P((char *, char *, size_t, ENVELOPE *));
1373 extern int macid_parse __P((char *, char **));
1374 #define macid(name) macid_parse(name, NULL)
1375 extern char *macname __P((int));
1376 extern char *macvalue __P((int, ENVELOPE *));
1377 extern void mactabclear __P((MACROS_T *));
1378 extern int rscheck __P((char *, const char *, const char *, ENVELOPE *, int, int, const char *, const char *, ADDRESS *, char **));
1379 extern int rscap __P((char *, char *, char *, ENVELOPE *, char ***, char *, int));
1380 extern void setclass __P((int, char *));
1381 extern int strtorwset __P((char *, char **, int));
1382 extern char *translate_dollars __P((char *, char *, int *));
1383 extern bool wordinclass __P((char *, int));
1386 ** Name canonification short circuit.
1388 ** If the name server for a host is down, the process of trying to
1389 ** canonify the name can hang. This is similar to (but alas, not
1390 ** identical to) looking up the name for delivery. This stab type
1391 ** caches the result of the name server lookup so we don't hang
1395 #define NAMECANON struct _namecanon
1399 short nc_errno; /* cached errno */
1400 short nc_herrno; /* cached h_errno */
1401 short nc_stat; /* cached exit status code */
1402 short nc_flags; /* flag bits */
1403 char *nc_cname; /* the canonical name */
1404 time_t nc_exp; /* entry expires at */
1407 /* values for nc_flags */
1408 #define NCF_VALID 0x0001 /* entry valid */
1409 #define NCF_VALID 0x0001 /* entry valid */
1410 #define NCF_SECURE 0x0002 /* entry secure (DNSSEC) */
1412 /* hostsignature structure */
1416 char *hs_sig; /* hostsignature */
1417 time_t hs_exp; /* entry expires at */
1420 typedef struct hostsig_t HOSTSIG_T;
1423 ** The standard udp packet size PACKETSZ (512) is not sufficient for some
1424 ** nameserver answers containing very many resource records. The resolver
1425 ** may switch to tcp and retry if it detects udp packet overflow.
1426 ** Also note that the resolver routines res_query and res_search return
1427 ** the size of the *un*truncated answer in case the supplied answer buffer
1428 ** it not big enough to accommodate the entire answer.
1432 # define MAXPACKET 8192 /* max packet size used internally by BIND */
1436 ** The resolver functions res_{send,query,querydomain} expect the
1437 ** answer buffer to be aligned, but some versions of gcc4 reverse
1438 ** 25 years of history and no longer align char buffers on the
1439 ** stack, resulting in crashes on strict-alignment platforms. Use
1440 ** this union when putting the buffer on the stack to force the
1441 ** alignment, then cast to (HEADER *) or (unsigned char *) as needed.
1446 unsigned char qb2[MAXPACKET];
1450 /* result values for getcanonname() etc */
1451 #define HOST_NOTFOUND 0
1453 #define HOST_SECURE 2
1455 /* flags for getmxrr() */
1456 #define DROPLOCALHOST 0x01
1457 #define TRYFALLBACK 0x02
1460 /* RFC7505: Null MX */
1464 extern int getcanonname __P((char *, int, bool, int *));
1465 extern int getmxrr __P((char *, char **, unsigned short *, unsigned int, int *, int *, int, int *));
1466 extern char *hostsignature __P((MAILER *, char *, bool, unsigned long *));
1467 extern int getfallbackmxrr __P((char *));
1470 ** Mapping functions
1472 ** These allow arbitrary mappings in the config file. The idea
1473 ** (albeit not the implementation) comes from IDA sendmail.
1476 #define MAPCLASS struct _mapclass
1477 #define MAP struct _map
1478 #define MAXMAPACTIONS 5 /* size of map_actions array */
1487 MAPCLASS *map_class; /* the class of this map */
1488 MAPCLASS *map_orgclass; /* the original class of this map */
1489 char *map_mname; /* name of this map */
1490 long map_mflags; /* flags, see below */
1491 char *map_file; /* the (nominal) filename */
1492 ARBPTR_T map_db1; /* the open database ptr */
1493 ARBPTR_T map_db2; /* an "extra" database pointer */
1494 char *map_keycolnm; /* key column name */
1495 char *map_valcolnm; /* value column name */
1496 unsigned char map_keycolno; /* key column number */
1497 unsigned char map_valcolno; /* value column number */
1498 char map_coldelim; /* column delimiter */
1499 char map_spacesub; /* spacesub */
1500 char *map_app; /* to append to successful matches */
1501 char *map_tapp; /* to append to "tempfail" matches */
1502 char *map_domain; /* the (nominal) NIS domain */
1503 char *map_rebuild; /* program to run to do auto-rebuild */
1504 time_t map_mtime; /* last database modification time */
1505 time_t map_timeout; /* timeout for map accesses */
1506 int map_retry; /* # of retries for map accesses */
1507 pid_t map_pid; /* PID of process which opened map */
1508 int map_lockfd; /* auxiliary lock file descriptor */
1509 MAP *map_stack[MAXMAPSTACK]; /* list for stacked maps */
1510 short map_return[MAXMAPACTIONS]; /* return bitmaps for stacked maps */
1514 # define map_tag map_domain /* overload map field */
1517 /* bit values for map_mflags */
1518 #define MF_VALID 0x00000001 /* this entry is valid */
1519 #define MF_INCLNULL 0x00000002 /* include null byte in key */
1520 #define MF_OPTIONAL 0x00000004 /* don't complain if map not found */
1521 #define MF_NOFOLDCASE 0x00000008 /* don't fold case in keys */
1522 #define MF_MATCHONLY 0x00000010 /* don't use the map value */
1523 #define MF_OPEN 0x00000020 /* this entry is open */
1524 #define MF_WRITABLE 0x00000040 /* open for writing */
1525 #define MF_ALIAS 0x00000080 /* this is an alias file */
1526 #define MF_TRY0NULL 0x00000100 /* try with no null byte */
1527 #define MF_TRY1NULL 0x00000200 /* try with the null byte */
1528 #define MF_LOCKED 0x00000400 /* map is locked (RDWR) */
1529 /* that means: no extra lockfile() calls must be made (in *map_lookup()) */
1530 #define MF_ALIASWAIT 0x00000800 /* alias map in aliaswait state */
1531 #define MF_IMPL_HASH 0x00001000 /* implicit: underlying hash database */
1532 #define MF_IMPL_NDBM 0x00002000 /* implicit: underlying NDBM database */
1533 #define MF_IMPL_CDB 0x00004000 /* implicit: underlying CDB database */
1534 #define MF_APPEND 0x00008000 /* append new entry on rebuild */
1535 #define MF_KEEPQUOTES 0x00010000 /* don't dequote key before lookup */
1536 #define MF_NODEFER 0x00020000 /* don't defer if map lookup fails */
1537 #define MF_REGEX_NOT 0x00040000 /* regular expression negation */
1538 #define MF_DEFER 0x00080000 /* don't lookup map in defer mode */
1539 #define MF_SINGLEMATCH 0x00100000 /* successful only if match one key */
1540 #define MF_SINGLEDN 0x00200000 /* only one match, but multi values */
1541 #define MF_FILECLASS 0x00400000 /* this is a file class map */
1542 #define MF_OPENBOGUS 0x00800000 /* open failed, don't call map_close */
1543 #define MF_CLOSING 0x01000000 /* map is being closed */
1544 #define MF_SECURE 0x02000000 /* DNSSEC result is "secure" */
1545 #define MF_KEEPXFMT 0x04000000 /* keep [x] format */
1546 #define MF_CHKED_CHGD 0x08000000 /* checked whether underlying map changed */
1548 #define DYNOPENMAP(map) \
1551 if (!bitset(MF_OPEN, (map)->map_mflags)) \
1553 if (!openmap(map)) \
1559 /* indices for map_actions */
1560 #define MA_NOTFOUND 0 /* member map returned "not found" */
1561 #define MA_UNAVAIL 1 /* member map is not available */
1562 #define MA_TRYAGAIN 2 /* member map returns temp failure */
1565 ** The class of a map -- essentially the functions to call
1570 char *map_cname; /* name of this map class */
1571 char *map_ext; /* extension for database file */
1572 short map_cflags; /* flag bits, see below */
1573 bool (*map_parse)__P((MAP *, char *));
1574 /* argument parsing function */
1575 char *(*map_lookup)__P((MAP *, char *, char **, int *));
1576 /* lookup function */
1577 void (*map_store)__P((MAP *, char *, char *));
1578 /* store function */
1579 bool (*map_open)__P((MAP *, int));
1581 void (*map_close)__P((MAP *));
1582 /* close function */
1585 /* bit values for map_cflags */
1586 #define MCF_ALIASOK 0x0001 /* can be used for aliases */
1587 /* #define MCF_ALIASONLY 0x0002 * usable only for aliases */
1588 #define MCF_REBUILDABLE 0x0004 /* can rebuild alias files */
1589 #define MCF_OPTFILE 0x0008 /* file name is optional */
1590 #define MCF_NOTPERSIST 0x0010 /* don't keep map open all the time */
1593 extern void closemaps __P((bool));
1594 extern bool impl_map_open __P((MAP *, int));
1595 extern void initmaps __P((void));
1596 extern MAP *makemapentry __P((char *));
1597 extern void maplocaluser __P((ADDRESS *, ADDRESS **, int, ENVELOPE *));
1598 extern char *map_rewrite __P((MAP *, const char *, size_t, char **));
1600 extern char *ni_propval __P((char *, char *, char *, char *, int));
1602 extern bool openmap __P((MAP *));
1603 extern int udbexpand __P((ADDRESS *, ADDRESS **, int, ENVELOPE *));
1605 extern void _udbx_close __P((void));
1606 extern char *udbsender __P((char *, SM_RPOOL_T *));
1608 #if _FFR_MAP_CHK_FILE > 1
1609 extern void maps_reset_chged __P((const char *));
1611 # define maps_reset_chged(msg)
1615 ** LDAP related items
1618 /* struct defining LDAP Auth Methods */
1621 char *lam_name; /* name of LDAP auth method */
1622 int lam_code; /* numeric code */
1625 /* struct defining LDAP Alias Dereferencing */
1628 char *lad_name; /* name of LDAP alias dereferencing method */
1629 int lad_code; /* numeric code */
1632 /* struct defining LDAP Search Scope */
1635 char *lss_name; /* name of LDAP search scope */
1636 int lss_code; /* numeric code */
1640 extern void ldapmap_set_defaults __P((char *));
1641 #endif /* LDAPMAP */
1649 # include <phclient.h>
1651 struct ph_map_struct
1653 char *ph_servers; /* list of ph servers */
1654 char *ph_field_list; /* list of fields to search for match */
1655 PH *ph; /* PH server handle */
1656 int ph_fastclose; /* send "quit" command on close */
1657 time_t ph_timeout; /* timeout interval */
1659 typedef struct ph_map_struct PH_MAP_STRUCT;
1664 ** Regular UNIX sockaddrs are too small to handle ISO addresses, so
1665 ** we are forced to declare a supertype here.
1668 #if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25
1671 struct sockaddr sa; /* general version */
1673 struct sockaddr_un sunix; /* UNIX family */
1676 struct sockaddr_in sin; /* INET family */
1679 struct sockaddr_in6 sin6; /* INET/IPv6 */
1682 struct sockaddr_iso siso; /* ISO family */
1685 struct sockaddr_ns sns; /* XNS family */
1688 struct sockaddr_x25 sx25; /* X.25 family */
1692 # define SOCKADDR union bigsockaddr
1695 extern char *anynet_ntoa __P((SOCKADDR *));
1697 extern char *anynet_ntop __P((struct in6_addr *, char *, size_t));
1698 extern int anynet_pton __P((int, const char *, void *));
1700 extern char *hostnamebyanyaddr __P((SOCKADDR *));
1701 extern char *validate_connection __P((SOCKADDR *, char *, ENVELOPE *));
1703 extern bool iptostring __P((SOCKADDR *, SOCKADDR_LEN_T, char *, unsigned));
1706 #endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */
1709 ** Process List (proclist)
1712 #define NO_PID ((pid_t) 0)
1713 #ifndef PROC_LIST_SEG
1714 # define PROC_LIST_SEG 32 /* number of pids to alloc at a time */
1719 #define PROC_DAEMON 1
1720 #define PROC_DAEMON_CHILD 2
1721 #define PROC_QUEUE 3
1722 #define PROC_QUEUE_CHILD 3
1723 #define PROC_CONTROL 4
1724 #define PROC_CONTROL_CHILD 5
1728 extern void proc_list_add __P((pid_t, char *, int, int, int, SOCKADDR *));
1729 extern void proc_list_clear __P((void));
1730 extern void proc_list_display __P((SM_FILE_T *, char *));
1731 extern void proc_list_drop __P((pid_t, int, int *));
1732 extern void proc_list_probe __P((void));
1733 extern void proc_list_set __P((pid_t, char *));
1734 extern void proc_list_signal __P((int, int));
1737 ** Symbol table definitions
1742 char *s_name; /* name to be entered */
1743 short s_symtype; /* general type (see below) */
1744 struct symtab *s_next; /* pointer to next in chain */
1747 BITMAP256 sv_class; /* bit-map of word classes */
1748 MAILER *sv_mailer; /* pointer to mailer */
1749 char *sv_alias; /* alias */
1750 MAPCLASS sv_mapclass; /* mapping function class */
1751 MAP sv_map; /* mapping function */
1752 HOSTSIG_T sv_hostsig; /* host signature */
1753 MCI sv_mci; /* mailer connection info */
1754 NAMECANON sv_namecanon; /* canonical name cache */
1755 int sv_macro; /* macro name => id mapping */
1756 int sv_ruleset; /* ruleset index */
1757 struct hdrinfo sv_header; /* header metainfo */
1758 char *sv_service[MAXMAPSTACK]; /* service switch */
1760 MAP *sv_lmap; /* Maps for LDAP connection */
1763 MAP *sv_socketmap; /* Maps for SOCKET connection */
1766 struct milter *sv_milter; /* milter filter name */
1768 QUEUEGRP *sv_queue; /* pointer to queue */
1770 dane_tlsa_P sv_tlsa; /* pointer to TLSA RRs */
1773 MAP sv_dynclass; /* map for dynamic class */
1778 typedef struct symtab STAB;
1781 #define ST_UNDEF 0 /* undefined type */
1782 #define ST_CLASS 1 /* class map */
1783 /* #define ST_unused 2 UNUSED */
1784 #define ST_MAILER 3 /* a mailer header */
1785 #define ST_ALIAS 4 /* an alias */
1786 #define ST_MAPCLASS 5 /* mapping function class */
1787 #define ST_MAP 6 /* mapping function */
1788 #define ST_HOSTSIG 7 /* host signature */
1789 #define ST_NAMECANON 8 /* cached canonical name */
1790 #define ST_MACRO 9 /* macro name to id mapping */
1791 #define ST_RULESET 10 /* ruleset index */
1792 #define ST_SERVICE 11 /* service switch entry */
1793 #define ST_HEADER 12 /* special header flags */
1795 # define ST_LMAP 13 /* List head of maps for LDAP connection */
1798 # define ST_MILTER 14 /* milter filter */
1800 #define ST_QUEUE 15 /* a queue entry */
1803 # define ST_SOCKETMAP 16 /* List head of maps for SOCKET connection */
1807 # define ST_TLSA_RR 17 /* cached TLSA RRs */
1810 # define ST_DYNMAP 18 /* dynamic map */
1813 /* This entry must be last */
1814 #define ST_MCI 19 /* mailer connection info (offset) */
1816 #define s_class s_value.sv_class
1817 #define s_mailer s_value.sv_mailer
1818 #define s_alias s_value.sv_alias
1819 #define s_mci s_value.sv_mci
1820 #define s_mapclass s_value.sv_mapclass
1821 #define s_hostsig s_value.sv_hostsig
1822 #define s_map s_value.sv_map
1823 #define s_namecanon s_value.sv_namecanon
1824 #define s_macro s_value.sv_macro
1825 #define s_ruleset s_value.sv_ruleset
1826 #define s_service s_value.sv_service
1827 #define s_header s_value.sv_header
1829 # define s_lmap s_value.sv_lmap
1832 # define s_socketmap s_value.sv_socketmap
1835 # define s_milter s_value.sv_milter
1837 #define s_quegrp s_value.sv_queue
1839 # define s_tlsa s_value.sv_tlsa
1842 # define s_dynclass s_value.sv_dynclass
1845 /* opcodes to stab */
1846 #define ST_FIND 0 /* find entry */
1847 #define ST_ENTER 1 /* enter if not there */
1850 extern STAB *stab __P((char *, int, int));
1851 extern void stabapply __P((void (*)(STAB *, int), int));
1854 ** Operation, send, error, and MIME modes
1856 ** The operation mode describes the basic operation of sendmail.
1857 ** This can be set from the command line, and is "send mail" by
1860 ** The send mode tells how to send mail. It can be set in the
1861 ** configuration file. Its setting determines how quickly the
1862 ** mail will be delivered versus the load on your system. If the
1863 ** -v (verbose) flag is given, it will be forced to SM_DELIVER
1866 ** The error mode tells how to return errors.
1869 #define MD_DELIVER 'm' /* be a mail sender */
1870 #define MD_SMTP 's' /* run SMTP on standard input */
1871 #define MD_ARPAFTP 'a' /* obsolete ARPANET mode (Grey Book) */
1872 #define MD_DAEMON 'd' /* run as a daemon */
1873 #define MD_FGDAEMON 'D' /* run daemon in foreground */
1874 #define MD_LOCAL 'l' /* like daemon, but localhost only */
1875 #define MD_VERIFY 'v' /* verify: don't collect or deliver */
1876 #define MD_TEST 't' /* test mode: resolve addrs only */
1877 #define MD_INITALIAS 'i' /* initialize alias database */
1878 #define MD_PRINT 'p' /* print the queue */
1879 #define MD_PRINTNQE 'P' /* print number of entries in queue */
1880 #define MD_FREEZE 'z' /* freeze the configuration file */
1881 #define MD_HOSTSTAT 'h' /* print persistent host stat info */
1882 #define MD_PURGESTAT 'H' /* purge persistent host stat info */
1883 #define MD_QUEUERUN 'q' /* queue run */
1884 #define MD_CHECKCONFIG 'C' /* check configuration file */
1885 #define MD_SHOWCONFIG 'O' /* show cf options */
1887 #if _FFR_LOCAL_DAEMON
1888 EXTERN bool LocalDaemon;
1890 EXTERN bool V6LoopbackAddrFound; /* found an IPv6 loopback address */
1891 # define SETV6LOOPBACKADDRFOUND(sa) \
1894 if (isloopback(sa)) \
1895 V6LoopbackAddrFound = true; \
1897 # endif /* NETINET6 */
1898 #else /* _FFR_LOCAL_DAEMON */
1899 # define LocalDaemon false
1900 # define V6LoopbackAddrFound false
1901 # define SETV6LOOPBACKADDRFOUND(sa)
1902 #endif /* _FFR_LOCAL_DAEMON */
1904 /* Note: see also include/sendmail/pathnames.h: GET_CLIENT_CF */
1906 /* values for e_sendmode -- send modes */
1907 #define SM_DELIVER 'i' /* interactive delivery */
1909 # define SM_PROXY_REQ 's' /* synchronous mode requested */
1910 # define SM_PROXY 'S' /* synchronous mode activated */
1912 #define SM_FORK 'b' /* deliver in background */
1914 # define SM_DM_ONE 'o' /* deliver first TA in background, then queue */
1917 # define SM_TRIGGER 't' /* queue and tell "queue manager" */
1918 # define IS_SM_TRIGGER(m) ((m) == SM_TRIGGER)
1920 # define IS_SM_TRIGGER(m) false
1922 #define SM_QUEUE 'q' /* queue, don't deliver */
1923 #define SM_DEFER 'd' /* defer map lookups as well as queue */
1924 #define SM_VERIFY 'v' /* verify only (used internally) */
1925 #define DM_NOTSET (-1) /* DeliveryMode (per daemon) option not set */
1927 # define SM_IS_INTERACTIVE(m) ((m) == SM_DELIVER || (m) == SM_PROXY_REQ || (m) == SM_PROXY)
1929 # define SM_IS_INTERACTIVE(m) ((m) == SM_DELIVER)
1932 #define WILL_BE_QUEUED(m) ((m) == SM_QUEUE || (m) == SM_DEFER || IS_SM_TRIGGER(m))
1934 /* used only as a parameter to sendall */
1935 #define SM_DEFAULT '\0' /* unspecified, use SendMode */
1938 extern void set_delivery_mode __P((int, ENVELOPE *));
1940 /* values for e_errormode -- error handling modes */
1941 #define EM_PRINT 'p' /* print errors */
1942 #define EM_MAIL 'm' /* mail back errors */
1943 #define EM_WRITE 'w' /* write back errors */
1944 #define EM_BERKNET 'e' /* special berknet processing */
1945 #define EM_QUIET 'q' /* don't print messages (stat only) */
1948 /* bit values for MimeMode */
1949 #define MM_CVTMIME 0x0001 /* convert 8 to 7 bit MIME */
1950 #define MM_PASS8BIT 0x0002 /* just send 8 bit data blind */
1951 #define MM_MIME8BIT 0x0004 /* convert 8-bit data to MIME */
1954 /* how to handle messages without any recipient addresses */
1955 #define NRA_NO_ACTION 0 /* just leave it as is */
1956 #define NRA_ADD_TO 1 /* add To: header */
1957 #define NRA_ADD_APPARENTLY_TO 2 /* add Apparently-To: header */
1958 #define NRA_ADD_BCC 3 /* add empty Bcc: header */
1959 #define NRA_ADD_TO_UNDISCLOSED 4 /* add To: undisclosed:; header */
1962 /* flags to putxline */
1963 #define PXLF_NOTHINGSPECIAL 0 /* no special mapping */
1964 #define PXLF_MAPFROM 0x0001 /* map From_ to >From_ */
1965 #define PXLF_STRIP8BIT 0x0002 /* strip 8th bit */
1966 #define PXLF_HEADER 0x0004 /* map newlines in headers */
1967 #define PXLF_NOADDEOL 0x0008 /* if EOL not present, don't add one */
1968 #define PXLF_STRIPMQUOTE 0x0010 /* strip METAQUOTEs */
1972 ** These are bit values for the PrivacyFlags word.
1975 #define PRIV_PUBLIC 0 /* what have I got to hide? */
1976 #define PRIV_NEEDMAILHELO 0x00000001 /* insist on HELO for MAIL */
1977 #define PRIV_NEEDEXPNHELO 0x00000002 /* insist on HELO for EXPN */
1978 #define PRIV_NEEDVRFYHELO 0x00000004 /* insist on HELO for VRFY */
1979 #define PRIV_NOEXPN 0x00000008 /* disallow EXPN command */
1980 #define PRIV_NOVRFY 0x00000010 /* disallow VRFY command */
1981 #define PRIV_AUTHWARNINGS 0x00000020 /* flag possible auth probs */
1982 #define PRIV_NOVERB 0x00000040 /* disallow VERB command */
1983 #define PRIV_RESTRICTMAILQ 0x00010000 /* restrict mailq command */
1984 #define PRIV_RESTRICTQRUN 0x00020000 /* restrict queue run */
1985 #define PRIV_RESTRICTEXPAND 0x00040000 /* restrict alias/forward expansion */
1986 #define PRIV_NOETRN 0x00080000 /* disallow ETRN command */
1987 #define PRIV_NOBODYRETN 0x00100000 /* do not return bodies on bounces */
1988 #define PRIV_NORECEIPTS 0x00200000 /* disallow return receipts */
1989 #define PRIV_NOACTUALRECIPIENT 0x00400000 /* no X-Actual-Recipient in DSNs */
1990 #define PRIV_NOREFLECTION 0x00800000 /* do not show original command */
1992 /* don't give no info, anyway, anyhow (in the main SMTP transaction) */
1993 #define PRIV_GOAWAY (0x0000ffff|PRIV_NOREFLECTION)
1995 /* struct defining such things */
1998 char *pv_name; /* name of privacy flag */
1999 unsigned long pv_flag; /* numeric level */
2002 EXTERN unsigned long PrivacyFlags; /* privacy flags */
2006 ** Flags passed to remotename, parseaddr, allocaddr, and buildaddr.
2009 #define RF_SENDERADDR 0x001 /* this is a sender address */
2010 #define RF_HEADERADDR 0x002 /* this is a header address */
2011 #define RF_CANONICAL 0x004 /* strip comment information */
2012 #define RF_ADDDOMAIN 0x008 /* OK to do domain extension */
2013 #define RF_COPYPARSE 0x010 /* copy parsed user & host */
2014 #define RF_COPYPADDR 0x020 /* copy print address */
2015 #define RF_COPYALL (RF_COPYPARSE|RF_COPYPADDR)
2016 #define RF_COPYNONE 0
2017 #define RF_RM_ADDR 0x040 /* address to be removed */
2018 #define RF_IS_EXT 0x100 /* address is in external format */
2021 ** Flags passed to rscheck
2024 #define RSF_RMCOMM 0x0001 /* strip comments */
2025 #define RSF_UNSTRUCTURED 0x0002 /* unstructured, ignore syntax errors */
2026 #define RSF_COUNT 0x0004 /* count rejections (statistics)? */
2027 #define RSF_ADDR 0x0008 /* reassemble address */
2028 #define RSF_STRING 0x0010 /* reassemble address as string */
2029 #define RSF_STATUS 0x0020 /* log "status" instead of "reject" */
2032 ** Flags passed to mime8to7 and putheader.
2035 #define M87F_OUTER 0 /* outer context */
2036 #define M87F_NO8BIT 0x0001 /* can't have 8-bit in this section */
2037 #define M87F_DIGEST 0x0002 /* processing multipart/digest */
2038 #define M87F_NO8TO7 0x0004 /* don't do 8->7 bit conversions */
2041 extern bool mime7to8 __P((MCI *, HDR *, ENVELOPE *));
2042 extern int mime8to7 __P((MCI *, HDR *, ENVELOPE *, char **, int, int));
2045 ** Flags passed to returntosender.
2048 #define RTSF_NO_BODY 0 /* send headers only */
2049 #define RTSF_SEND_BODY 0x0001 /* include body of message in return */
2050 #define RTSF_PM_BOUNCE 0x0002 /* this is a postmaster bounce */
2053 extern int returntosender __P((char *, ADDRESS *, int, ENVELOPE *));
2056 ** Mail Filters (milter)
2060 ** 32-bit type used by milter
2061 ** (needed by libmilter even if MILTER isn't defined)
2064 typedef SM_INT32 mi_int32;
2067 # define SMFTO_WRITE 0 /* Timeout for sending information */
2068 # define SMFTO_READ 1 /* Timeout waiting for a response */
2069 # define SMFTO_EOM 2 /* Timeout for ACK/NAK to EOM */
2070 # define SMFTO_CONNECT 3 /* Timeout for connect() */
2072 # define SMFTO_NUM_TO 4 /* Total number of timeouts */
2076 char *mf_name; /* filter name */
2077 BITMAP256 mf_flags; /* MTA flags */
2078 mi_int32 mf_fvers; /* filter version */
2079 mi_int32 mf_fflags; /* filter flags */
2080 mi_int32 mf_pflags; /* protocol flags */
2081 char *mf_conn; /* connection info */
2082 int mf_sock; /* connected socket */
2083 char mf_state; /* state of filter */
2084 char mf_lflags; /* "local" flags */
2085 int mf_idx; /* milter number (index) */
2086 time_t mf_timeout[SMFTO_NUM_TO]; /* timeouts */
2087 # if _FFR_MILTER_CHECK
2088 /* for testing only */
2089 mi_int32 mf_mta_prot_version;
2090 mi_int32 mf_mta_prot_flags;
2091 mi_int32 mf_mta_actions;
2092 # endif /* _FFR_MILTER_CHECK */
2095 # define MI_LFL_NONE 0x00000000
2096 # define MI_LFLAGS_SYM(st) (1 << (st)) /* has its own symlist for stage st */
2100 mi_int32 mis_flags; /* filter flags */
2102 typedef struct milters milters_T;
2104 # define MIS_FL_NONE 0x00000000 /* no requirements... */
2105 # define MIS_FL_DEL_RCPT 0x00000001 /* can delete rcpt */
2106 # define MIS_FL_REJ_RCPT 0x00000002 /* can reject rcpt */
2110 # define SMF_REJECT 'R' /* Reject connection on filter fail */
2111 # define SMF_TEMPFAIL 'T' /* tempfail connection on failure */
2112 # define SMF_TEMPDROP '4' /* 421 connection on failure */
2114 EXTERN struct milter *InputFilters[MAXFILTERS];
2115 EXTERN char *InputFilterList;
2116 EXTERN int MilterLogLevel;
2119 extern void setup_daemon_milters __P((void));
2125 ** Vendors can customize sendmail to add special behaviour,
2126 ** generally for back compatibility. Ideally, this should
2127 ** be set up in the .cf file using the "V" command. However,
2128 ** it's quite reasonable for some vendors to want the default
2129 ** be their old version; this can be set using
2130 ** -DVENDOR_DEFAULT=VENDOR_xxx
2133 ** Vendors should apply to sendmail-YYYY@support.sendmail.org
2134 ** (replace YYYY with the current year)
2135 ** for unique vendor codes.
2138 #define VENDOR_BERKELEY 1 /* Berkeley-native configuration file */
2139 #define VENDOR_SUN 2 /* Sun-native configuration file */
2140 #define VENDOR_HP 3 /* Hewlett-Packard specific config syntax */
2141 #define VENDOR_IBM 4 /* IBM specific config syntax */
2142 #define VENDOR_SENDMAIL 5 /* Proofpoint, Inc. specific config syntax */
2143 #define VENDOR_DEC 6 /* Compaq, DEC, Digital */
2145 /* prototypes for vendor-specific hook routines */
2146 extern void vendor_daemon_setup __P((ENVELOPE *));
2147 extern void vendor_set_uid __P((UID_T));
2151 ** Terminal escape codes.
2153 ** To make debugging output clearer.
2158 char *te_rv_on; /* turn reverse-video on */
2159 char *te_under_on; /* turn underlining on */
2160 char *te_normal; /* revert to normal output */
2164 ** Additional definitions
2168 ** d_flags, see daemon.c
2169 ** general rule: lower case: required, upper case: No
2172 #define D_AUTHREQ 'a' /* authentication required */
2173 #define D_BINDIF 'b' /* use if_addr for outgoing connection */
2174 #define D_CANONREQ 'c' /* canonification required (cf) */
2175 #define D_IFNHELO 'h' /* use if name for HELO */
2176 #define D_FQMAIL 'f' /* fq sender address required (cf) */
2177 #define D_FQRCPT 'r' /* fq recipient address required (cf) */
2178 #define D_SMTPS 's' /* SMTP over SSL (smtps) */
2179 #define D_UNQUALOK 'u' /* unqualified address is ok (cf) */
2180 #define D_NOAUTH 'A' /* no AUTH */
2181 #define D_NOCANON 'C' /* no canonification (cf) */
2182 #define D_NODANE 'D' /* no DANE (client) */
2183 #define D_NOETRN 'E' /* no ETRN (MSA) */
2184 #define D_NOSTS 'M' /* no MTA-STS (client) */
2185 #define D_NOTLS 'S' /* don't use STARTTLS */
2186 #define D_ETRNONLY ((char)0x01) /* allow only ETRN (disk low) */
2187 #define D_OPTIONAL 'O' /* optional socket */
2188 #define D_DISABLE ((char)0x02) /* optional socket disabled */
2189 #define D_ISSET ((char)0x03) /* this client struct is set */
2191 #define D_XCNCT ((char)0x04) /* X-Connect was used */
2192 #define D_XCNCT_M ((char)0x05) /* X-Connect was used + "forged" */
2197 ** Queue related items
2200 /* queue file names */
2201 #define ANYQFL_LETTER '?'
2202 #define QUARQF_LETTER 'h'
2203 #define DATAFL_LETTER 'd'
2204 #define XSCRPT_LETTER 'x'
2205 #define NORMQF_LETTER 'q'
2206 #define NEWQFL_LETTER 't'
2208 # define TEMPQF_LETTER 'T'
2209 # define LOSEQF_LETTER 'Q'
2211 /* queue sort order */
2212 #define QSO_BYPRIORITY 0 /* sort by message priority */
2213 #define QSO_BYHOST 1 /* sort by first host name */
2214 #define QSO_BYTIME 2 /* sort by submission time */
2215 #define QSO_BYFILENAME 3 /* sort by file name only */
2216 #define QSO_RANDOM 4 /* sort in random order */
2217 #define QSO_BYMODTIME 5 /* sort by modification time */
2218 #define QSO_NONE 6 /* do not sort */
2220 # define QSO_BYSHUFFLE 7 /* sort by shuffled host name */
2223 #define NOQGRP (-1) /* no queue group (yet) */
2224 #define ENVQGRP (-2) /* use queue group of envelope */
2225 #define NOAQGRP (-3) /* no queue group in addr (yet) */
2226 #define ISVALIDQGRP(x) ((x) >= 0) /* valid queue group? */
2227 #define NOQDIR (-1) /* no queue directory (yet) */
2228 #define ENVQDIR (-2) /* use queue directory of envelope */
2229 #define NOAQDIR (-3) /* no queue directory in addr (yet) */
2230 #define ISVALIDQDIR(x) ((x) >= 0) /* valid queue directory? */
2231 #define RS_QUEUEGROUP "queuegroup" /* ruleset for queue group selection */
2233 #define NOW ((time_t) (-1)) /* queue return: now */
2235 /* SuperSafe values */
2236 #define SAFE_NO 0 /* no fsync(): don't use... */
2237 #define SAFE_INTERACTIVE 1 /* limit fsync() in -odi */
2238 #define SAFE_REALLY 2 /* always fsync() */
2239 #define SAFE_REALLY_POSTMILTER 3 /* fsync() if milter says OK */
2241 /* QueueMode bits */
2242 #define QM_NORMAL ' '
2243 #define QM_QUARANTINE 'Q'
2246 /* Queue Run Limitations */
2249 char *queue_match; /* string to match */
2250 bool queue_negate; /* or not match, if set */
2251 struct queue_char *queue_next;
2254 /* run_work_group() flags */
2255 #define RWG_NONE 0x0000
2256 #define RWG_FORK 0x0001
2257 #define RWG_VERBOSE 0x0002
2258 #define RWG_PERSISTENT 0x0004
2259 #define RWG_FORCE 0x0008
2260 #define RWG_RUNALL 0x0010
2262 typedef struct queue_char QUEUE_CHAR;
2264 EXTERN int volatile CurRunners; /* current number of runner children */
2265 EXTERN int MaxQueueRun; /* maximum number of jobs in one queue run */
2266 EXTERN int MaxQueueChildren; /* max # of forked queue children */
2267 EXTERN int MaxRunnersPerQueue; /* max # proc's active in queue group */
2268 EXTERN int NiceQueueRun; /* nice queue runs to this value */
2269 EXTERN int NumQueue; /* number of queue groups */
2270 EXTERN int QueueFileMode; /* mode on files in mail queue */
2271 EXTERN int QueueMode; /* which queue items to act upon */
2272 EXTERN int QueueSortOrder; /* queue sorting order algorithm */
2273 EXTERN time_t MinQueueAge; /* min delivery interval */
2274 EXTERN time_t MaxQueueAge; /* max delivery interval */
2275 EXTERN time_t QueueIntvl; /* intervals between running the queue */
2276 EXTERN char *QueueDir; /* location of queue directory */
2277 EXTERN QUEUE_CHAR *QueueLimitId; /* limit queue run to id */
2278 EXTERN QUEUE_CHAR *QueueLimitQuarantine; /* limit queue run to quarantine reason */
2279 EXTERN QUEUE_CHAR *QueueLimitRecipient; /* limit queue run to rcpt */
2280 EXTERN QUEUE_CHAR *QueueLimitSender; /* limit queue run to sender */
2281 EXTERN QUEUEGRP *Queue[MAXQUEUEGROUPS + 1]; /* queue groups */
2282 #if _FFR_BOUNCE_QUEUE
2283 EXTERN int BounceQueue;
2287 extern void assign_queueid __P((ENVELOPE *));
2288 extern ADDRESS *copyqueue __P((ADDRESS *, SM_RPOOL_T *));
2289 extern void cleanup_queues __P((void));
2290 extern bool doqueuerun __P((void));
2291 extern void initsys __P((ENVELOPE *));
2292 extern void loseqfile __P((ENVELOPE *, char *));
2293 extern int name2qid __P((char *));
2294 extern char *qid_printname __P((ENVELOPE *));
2295 extern char *qid_printqueue __P((int, int));
2296 extern void quarantine_queue __P((char *, int));
2297 extern char *queuename __P((ENVELOPE *, int));
2298 extern void queueup __P((ENVELOPE *, unsigned int));
2299 extern bool runqueue __P((bool, bool, bool, bool));
2300 extern bool run_work_group __P((int, int));
2301 extern void set_def_queueval __P((QUEUEGRP *, bool));
2302 extern void setup_queues __P((bool));
2303 extern bool setnewqueue __P((ENVELOPE *));
2304 extern bool shouldqueue __P((long, time_t));
2305 extern void sync_queue_time __P((void));
2306 extern void init_qid_alg __P((void));
2307 extern int print_single_queue __P((int, int));
2308 #if REQUIRES_DIR_FSYNC
2309 # define SYNC_DIR(path, panic) sync_dir(path, panic)
2310 extern void sync_dir __P((char *, bool));
2312 # define SYNC_DIR(path, panic) ((void) 0)
2315 extern bool qm __P((void));
2316 extern int deliver __P((ENVELOPE *, ADDRESS *));
2322 ** Indicated values are the MINIMUM per RFC 1123 section 5.3.2.
2327 /* RFC 1123-specified timeouts [minimum value] */
2328 time_t to_initial; /* initial greeting timeout [5m] */
2329 time_t to_mail; /* MAIL command [5m] */
2330 time_t to_rcpt; /* RCPT command [5m] */
2331 time_t to_datainit; /* DATA initiation [2m] */
2332 time_t to_datablock; /* DATA block [3m] */
2333 time_t to_datafinal; /* DATA completion [10m] */
2334 time_t to_nextcommand; /* next command [5m] */
2335 /* following timeouts are not mentioned in RFC 1123 */
2336 time_t to_iconnect; /* initial connection timeout (first try) */
2337 time_t to_connect; /* initial connection timeout (later tries) */
2338 time_t to_aconnect; /* all connections timeout (MX and A records) */
2339 time_t to_rset; /* RSET command */
2340 time_t to_helo; /* HELO command */
2341 time_t to_quit; /* QUIT command */
2342 time_t to_miscshort; /* misc short commands (NOOP, VERB, etc) */
2343 time_t to_ident; /* IDENT protocol requests */
2344 time_t to_fileopen; /* opening :include: and .forward files */
2345 time_t to_control; /* process a control socket command */
2346 time_t to_lhlo; /* LMTP: LHLO command */
2348 time_t to_auth; /* AUTH dialogue [10m] */
2351 time_t to_starttls; /* STARTTLS dialogue [10m] */
2353 /* following are per message */
2354 time_t to_q_return[MAXTOCLASS]; /* queue return timeouts */
2355 time_t to_q_warning[MAXTOCLASS]; /* queue warning timeouts */
2356 time_t res_retrans[MAXRESTOTYPES]; /* resolver retransmit */
2357 int res_retry[MAXRESTOTYPES]; /* resolver retry */
2360 /* timeout classes for return and warning timeouts */
2361 #define TOC_NORMAL 0 /* normal delivery */
2362 #define TOC_URGENT 1 /* urgent delivery */
2363 #define TOC_NONURGENT 2 /* non-urgent delivery */
2364 #define TOC_DSN 3 /* DSN delivery */
2366 /* resolver timeout specifiers */
2367 #define RES_TO_FIRST 0 /* first attempt */
2368 #define RES_TO_NORMAL 1 /* subsequent attempts */
2369 #define RES_TO_DEFAULT 2 /* default value */
2372 extern void inittimeouts __P((char *, bool));
2375 ** Interface probing
2378 #define DPI_PROBENONE 0 /* Don't probe any interfaces */
2379 #define DPI_PROBEALL 1 /* Probe all interfaces */
2380 #define DPI_SKIPLOOPBACK 2 /* Don't probe loopback interfaces */
2383 ** Trace information
2386 /* macros for debugging flags */
2388 # define tTd(flag, level) (tTdvect[flag] >= (unsigned char)level)
2390 # define tTd(flag, level) (tTdvect[flag] >= (unsigned char)level && !IntSig)
2392 # define TTD(flag, level) (tTdvect[flag] >= (unsigned char)level && !IntSig)
2394 # define TTD(flag, level) false
2397 #define tTdlevel(flag) (tTdvect[flag])
2400 extern unsigned char tTdvect[100]; /* trace vector */
2403 ** Miscellaneous information.
2407 ** The "no queue id" queue id for sm_syslog
2412 #define CURHOSTNAME (CurHostName == NULL ? "local" : CurHostName)
2415 ** Some in-line functions
2418 /* set exit status */
2419 #define setstat(s) \
2422 if (ExitStat == EX_OK || ExitStat == EX_TEMPFAIL) \
2427 #define STRUCTCOPY(s, d) d = s
2430 ** Update a permanent string variable with a new value.
2431 ** The old value is freed, the new value is strdup'ed.
2433 ** We use sm_pstrdup_x to duplicate the string because it raises
2434 ** an exception on error, and because it allocates "permanent storage"
2435 ** which is not expected to be freed before process exit.
2436 ** The latter is important for memory leak analysis.
2438 ** If an exception occurs while strdup'ing the new value,
2439 ** then the variable remains set to the old value.
2440 ** That's why the strdup must occur before we free the old value.
2442 #define PSTRSET(var, val) \
2445 char *_newval = sm_pstrdup_x(val); \
2451 #define _CHECK_RESTART \
2454 if (ShutdownRequest != NULL) \
2455 shutdown_daemon(); \
2456 else if (RestartRequest != NULL) \
2458 else if (RestartWorkGroup) \
2459 restart_marked_work_groups(); \
2462 # define CHECK_RESTART _CHECK_RESTART
2464 #define CHK_CUR_RUNNERS(fct, idx, count) \
2467 if (CurRunners < 0) \
2470 sm_syslog(LOG_ERR, NOQID, \
2471 "%s: CurRunners=%d, i=%d, count=%d, status=should not happen", \
2472 fct, CurRunners, idx, count); \
2477 /* reply types (text in SmtpMsgBuffer) */
2478 /* XREF: deliver.c: xs_states[] -- any changes here must be reflected there! */
2479 #define XS_DEFAULT 0 /* other commands, e.g., RSET */
2480 #define XS_STARTTLS 1
2488 #define XS_DATA2 9 /* LMTP */
2492 ** Global variables.
2498 #if _FFR_ADDR_TYPE_MODES
2499 EXTERN bool AddrTypeModes; /* addr_type: extra "mode" information */
2501 EXTERN bool AllowBogusHELO; /* allow syntax errors on HELO command */
2502 EXTERN bool CheckAliases; /* parse addresses during newaliases */
2503 #if _FFR_QUEUE_RUN_PARANOIA
2504 EXTERN int CheckQueueRunners; /* check whether queue runners are OK */
2506 EXTERN bool ColonOkInAddr; /* single colon legal in address */
2507 #if !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_)
2508 EXTERN bool ConfigFileRead; /* configuration file has been read */
2510 EXTERN bool DisConnected; /* running with OutChannel redirect to transcript file */
2511 EXTERN bool DontExpandCnames; /* do not $[...$] expand CNAMEs */
2512 EXTERN bool DontInitGroups; /* avoid initgroups() because of NIS cost */
2513 EXTERN bool DontLockReadFiles; /* don't read lock support files */
2514 EXTERN bool DontPruneRoutes; /* don't prune source routes */
2515 EXTERN bool ForkQueueRuns; /* fork for each job when running the queue */
2516 EXTERN bool FromFlag; /* if set, "From" person is explicit */
2517 EXTERN bool FipsMode;
2518 EXTERN bool GrabTo; /* if set, get recipients from msg */
2519 #if _FFR_EIGHT_BIT_ADDR_OK
2520 EXTERN bool EightBitAddrOK; /* we'll let 8-bit addresses through */
2522 # define EightBitAddrOK false
2524 EXTERN bool HasEightBits; /* has at least one eight bit input byte */
2525 EXTERN bool HasWildcardMX; /* don't use MX records when canonifying */
2526 EXTERN bool HoldErrs; /* only output errors to transcript */
2527 EXTERN bool IgnoreHostStatus; /* ignore long term host status files */
2528 EXTERN bool IgnrDot; /* don't let dot end messages */
2530 EXTERN bool KeepBcc;
2532 # define KeepBcc false
2534 EXTERN bool LogUsrErrs; /* syslog user errors (e.g., SMTP RCPT cmd) */
2535 EXTERN bool MatchGecos; /* look for user names in gecos field */
2536 EXTERN bool MeToo; /* send to the sender also */
2537 EXTERN bool NoAlias; /* suppress aliasing */
2538 EXTERN bool NoConnect; /* don't connect to non-local mailers */
2539 EXTERN bool OnlyOneError; /* .... or only want to give one SMTP reply */
2540 EXTERN bool QuickAbort; /* .... but only if we want a quick abort */
2541 #if _FFR_REJECT_NUL_BYTE
2542 EXTERN bool RejectNUL; /* reject NUL input byte? */
2544 #if REQUIRES_DIR_FSYNC
2545 EXTERN bool RequiresDirfsync; /* requires fsync() for directory */
2547 EXTERN bool volatile RestartWorkGroup; /* daemon needs to restart some work groups */
2548 EXTERN bool RrtImpliesDsn; /* turn Return-Receipt-To: into DSN */
2549 EXTERN bool SaveFrom; /* save leading "From" lines */
2550 EXTERN bool SendMIMEErrors; /* send error messages in MIME format */
2551 EXTERN bool SevenBitInput; /* force 7-bit data on input */
2552 EXTERN bool SingleLineFromHeader; /* force From: header to be one line */
2553 EXTERN bool SingleThreadDelivery; /* single thread hosts on delivery */
2554 EXTERN bool SoftBounce; /* replace 5xy by 4xy (for testing) */
2555 EXTERN bool volatile StopRequest; /* stop sending output */
2556 EXTERN bool SuprErrs; /* set if we are suppressing errors */
2557 EXTERN bool TryNullMXList; /* if we are the best MX, try host directly */
2558 EXTERN bool UseMSP; /* mail submission: group writable queue ok? */
2559 EXTERN bool WorkAroundBrokenAAAA; /* some nameservers return SERVFAIL on AAAA queries */
2560 EXTERN bool UseErrorsTo; /* use Errors-To: header (back compat) */
2561 EXTERN bool UseNameServer; /* using DNS -- interpret h_errno & MX RRs */
2562 EXTERN bool UseCompressedIPv6Addresses; /* for more specific zero-subnet matches */
2563 EXTERN char InetMode; /* default network for daemon mode */
2564 EXTERN char OpMode; /* operation mode, see below */
2565 EXTERN char SpaceSub; /* substitution for <lwsp> */
2566 #if _FFR_BADRCPT_SHUTDOWN
2567 EXTERN int BadRcptShutdown; /* Shutdown connection for rejected RCPTs */
2568 EXTERN int BadRcptShutdownGood; /* above even when there are good RCPTs */
2570 EXTERN int BadRcptThrottle; /* Throttle rejected RCPTs per SMTP message */
2571 #if _FFR_RCPTTHROTDELAY
2572 EXTERN unsigned int BadRcptThrottleDelay; /* delay for BadRcptThrottle */
2574 # define BadRcptThrottleDelay 1
2576 #if _FFR_TLS_ALTNAMES
2577 EXTERN bool SetCertAltnames;
2579 EXTERN int CheckpointInterval; /* queue file checkpoint interval */
2580 EXTERN int ConfigLevel; /* config file level */
2581 EXTERN int ConnRateThrottle; /* throttle for SMTP connection rate */
2582 EXTERN int volatile CurChildren; /* current number of daemonic children */
2583 EXTERN int CurrentLA; /* current load average */
2585 EXTERN int Dane; /* DANE */
2587 # define Dane 0 /* XREF: see tls.h: #define DANE_NEVER */
2589 EXTERN int DefaultNotify; /* default DSN notification flags */
2590 EXTERN int DelayLA; /* load average to delay connections */
2591 EXTERN int DontProbeInterfaces; /* don't probe interfaces for names */
2592 EXTERN int Errors; /* set if errors (local to single pass) */
2593 EXTERN int ExitStat; /* exit status code */
2594 EXTERN int FastSplit; /* fast initial splitting of envelopes */
2595 EXTERN int FileMode; /* mode on files */
2596 EXTERN int LineNumber; /* line number in current input */
2597 EXTERN int LogLevel; /* level of logging to perform */
2598 EXTERN int MaxAliasRecursion; /* maximum depth of alias recursion */
2599 EXTERN int MaxChildren; /* maximum number of daemonic children */
2600 EXTERN int MaxForwardEntries; /* maximum number of forward entries */
2601 EXTERN int MaxHeadersLength; /* max length of headers */
2602 EXTERN int MaxHopCount; /* max # of hops until bounce */
2603 EXTERN int MaxMacroRecursion; /* maximum depth of macro recursion */
2604 EXTERN int MaxMimeFieldLength; /* maximum MIME field length */
2605 EXTERN int MaxMimeHeaderLength; /* maximum MIME header length */
2606 EXTERN int MaxNOOPCommands; /* max "noise" commands before slowdown */
2608 EXTERN int MaxRcptPerMsg; /* max recipients per SMTP message */
2609 EXTERN int MaxRuleRecursion; /* maximum depth of ruleset recursion */
2611 EXTERN char *MessageAccept; /* "Message accepted for delivery" reply text */
2614 EXTERN int MimeMode; /* MIME processing mode */
2617 EXTERN char *STS_SNI;
2619 EXTERN int NoRecipientAction;
2622 EXTERN int Numfilesys; /* number of queue file systems */
2623 EXTERN int *PNumFileSys;
2624 # define NumFileSys (*PNumFileSys)
2625 #else /* SM_CONF_SHM */
2626 EXTERN int NumFileSys; /* number of queue file systems */
2627 #endif /* SM_CONF_SHM */
2629 EXTERN int QueueLA; /* load average starting forced queueing */
2630 EXTERN int RefuseLA; /* load average refusing connections */
2631 EXTERN time_t RejectLogInterval; /* time btwn log msgs while refusing */
2633 EXTERN long QueueLowMem; /* low memory starting forced queueing */
2634 EXTERN long RefuseLowMem; /* low memory refusing connections */
2635 EXTERN char *MemoryResource;/* memory resource to look up */
2636 #endif /* _FFR_MEMSTAT */
2637 EXTERN int SuperSafe; /* be extra careful, even if expensive */
2639 EXTERN int SMTP_UTF8; /* enable SMTPUTF8 support */
2641 # define SMTP_UTF8 false
2643 EXTERN int VendorCode; /* vendor-specific operation enhancements */
2644 EXTERN int Verbose; /* set if blow-by-blow desired */
2645 EXTERN gid_t DefGid; /* default gid to run as */
2646 EXTERN gid_t RealGid; /* real gid of caller */
2647 EXTERN gid_t RunAsGid; /* GID to become for bulk of run */
2648 EXTERN gid_t EffGid; /* effective gid */
2650 EXTERN key_t ShmKey; /* shared memory key */
2651 EXTERN char *ShmKeyFile; /* shared memory key file */
2653 EXTERN pid_t CurrentPid; /* current process id */
2654 EXTERN pid_t DaemonPid; /* process id of daemon */
2655 EXTERN pid_t PidFilePid; /* daemon/queue runner who wrote pid file */
2656 EXTERN uid_t DefUid; /* default uid to run as */
2657 EXTERN uid_t RealUid; /* real uid of caller */
2658 EXTERN uid_t RunAsUid; /* UID to become for bulk of run */
2659 EXTERN uid_t TrustedUid; /* uid of trusted user for files and startup */
2660 EXTERN size_t DataFileBufferSize; /* size of buf for in-core data file */
2661 EXTERN time_t DeliverByMin; /* deliver by minimum time */
2662 EXTERN time_t DialDelay; /* delay between dial-on-demand tries */
2663 EXTERN time_t SafeAlias; /* interval to wait until @:@ in alias file */
2664 EXTERN time_t ServiceCacheMaxAge; /* refresh interval for cache */
2665 EXTERN size_t XscriptFileBufferSize; /* size of buf for in-core transcript file */
2666 EXTERN MODE_T OldUmask; /* umask when sendmail starts up */
2667 EXTERN long MaxMessageSize; /* advertised max size we will accept */
2668 EXTERN long MinBlocksFree; /* min # of blocks free on queue fs */
2669 EXTERN long QueueFactor; /* slope of queue function */
2670 EXTERN long WkClassFact; /* multiplier for message class -> priority */
2671 EXTERN long WkRecipFact; /* multiplier for # of recipients -> priority */
2672 EXTERN long WkTimeFact; /* priority offset each time this job is run */
2673 EXTERN char *ControlSocketName; /* control socket filename [control.c] */
2674 EXTERN char *CurHostName; /* current host we are dealing with */
2675 EXTERN char *DeadLetterDrop; /* path to dead letter office */
2676 EXTERN char *DefUser; /* default user to run as (from DefUid) */
2677 EXTERN char *DefaultCharSet; /* default character set for MIME */
2678 EXTERN char *DoubleBounceAddr; /* where to send double bounces */
2679 EXTERN char *ErrMsgFile; /* file to prepend to all error messages */
2680 EXTERN char *FallbackMX; /* fall back MX host */
2681 EXTERN char *FallbackSmartHost; /* fall back smart host */
2682 EXTERN char *FileName; /* name to print on error messages */
2683 EXTERN char *ForwardPath; /* path to search for .forward files */
2684 EXTERN char *HeloName; /* hostname to announce in HELO */
2685 EXTERN char *HelpFile; /* location of SMTP help file */
2686 EXTERN char *HostStatDir; /* location of host status information */
2687 EXTERN char *HostsFile; /* path to /etc/hosts file */
2688 extern char *Mbdb; /* mailbox database type */
2689 EXTERN char *MustQuoteChars; /* quote these characters in phrases */
2690 EXTERN char *MyHostName; /* name of this host for SMTP messages */
2691 EXTERN char *OperatorChars; /* operators (old $o macro) */
2692 EXTERN char *PidFile; /* location of proc id file [conf.c] */
2693 EXTERN char *PostMasterCopy; /* address to get errs cc's */
2694 EXTERN char *ProcTitlePrefix; /* process title prefix */
2695 EXTERN char *RealHostName; /* name of host we are talking to */
2696 EXTERN char *RealUserName; /* real user name of caller */
2697 EXTERN char *volatile RestartRequest;/* a sendmail restart has been requested */
2698 EXTERN char *RunAsUserName; /* user to become for bulk of run */
2699 EXTERN char *SafeFileEnv; /* chroot location for file delivery */
2700 EXTERN char *ServiceSwitchFile; /* backup service switch */
2701 EXTERN char *volatile ShutdownRequest;/* a sendmail shutdown has been requested */
2702 EXTERN bool volatile IntSig;
2703 EXTERN char *SmtpGreeting; /* SMTP greeting message (old $e macro) */
2704 EXTERN char *SmtpPhase; /* current phase in SMTP processing */
2705 EXTERN char SmtpError[MAXLINE]; /* save failure error messages */
2706 EXTERN char *StatFile; /* location of statistics summary */
2707 EXTERN char *TimeZoneSpec; /* override time zone specification */
2708 EXTERN char *UdbSpec; /* user database source spec */
2709 EXTERN char *UnixFromLine; /* UNIX From_ line (old $l macro) */
2710 EXTERN char **ExternalEnviron; /* saved user (input) environment */
2711 EXTERN char **SaveArgv; /* argument vector for re-execing */
2712 EXTERN BITMAP256 DontBlameSendmail; /* DontBlameSendmail bits */
2713 EXTERN SM_FILE_T *InChannel; /* input connection */
2714 EXTERN SM_FILE_T *OutChannel; /* output connection */
2715 EXTERN SM_FILE_T *TrafficLogFile; /* file in which to log all traffic */
2717 EXTERN void *HesiodContext;
2719 EXTERN ENVELOPE *CurEnv; /* envelope currently being processed */
2720 EXTERN char *RuleSetNames[MAXRWSETS]; /* ruleset number to name */
2721 EXTERN char *UserEnviron[MAXUSERENVIRON + 1];
2722 EXTERN struct rewrite *RewriteRules[MAXRWSETS];
2723 EXTERN struct termescape TermEscape; /* terminal escape codes */
2724 EXTERN SOCKADDR ConnectOnlyTo; /* override connection address (for testing) */
2725 EXTERN SOCKADDR RealHostAddr; /* address of host we are talking to */
2726 extern const SM_EXC_TYPE_T EtypeQuickAbort; /* type of a QuickAbort exception */
2728 #if _FFR_BLANKENV_MACV
2729 EXTERN int Hacks; /* bit field of run-time enabled "hacks" */
2730 # define H_LOOKUP_MACRO_IN_BLANKENV 0x0001
2731 # define LOOKUP_MACRO_IN_BLANKENV (Hacks & H_LOOKUP_MACRO_IN_BLANKENV)
2733 # define LOOKUP_MACRO_IN_BLANKENV false
2736 EXTERN int ConnectionRateWindowSize;
2739 ** Declarations of useful functions
2742 /* Transcript file */
2743 extern void closexscript __P((ENVELOPE *));
2744 extern void openxscript __P((ENVELOPE *));
2747 #define NR_PRINTFLIKE(a, b) PRINTFLIKE(a, b)
2749 #define NR_PRINTFLIKE(a, b)
2753 extern void buffer_errors __P((void));
2754 extern void flush_errors __P((bool));
2755 extern void NR_PRINTFLIKE(1, 2) message __P((const char *, ...));
2756 extern void NR_PRINTFLIKE(1, 2) nmessage __P((const char *, ...));
2758 extern void NR_PRINTFLIKE(3, 4) emessage __P((const char *, const char *, const char *, ...));
2759 extern int extsc __P((const char *, int, char *, char *));
2761 extern void NR_PRINTFLIKE(1, 2) syserr __P((const char *, ...));
2762 extern void NR_PRINTFLIKE(2, 3) usrerrenh __P((char *, const char *, ...));
2763 extern void NR_PRINTFLIKE(1, 2) usrerr __P((const char *, ...));
2764 extern int isenhsc __P((const char *, int));
2765 extern int extenhsc __P((const char *, int, char *));
2766 extern int skipaddrhost __P((const char *, bool));
2769 extern void alias __P((ADDRESS *, ADDRESS **, int, ENVELOPE *));
2770 extern bool aliaswait __P((MAP *, const char *, bool));
2771 extern void forward __P((ADDRESS *, ADDRESS **, int, ENVELOPE *));
2772 extern void readaliases __P((MAP *, SM_FILE_T *, bool, bool));
2773 extern bool rebuildaliases __P((MAP *));
2774 extern void setalias __P((char *));
2777 extern void logdelivery __P((MAILER *, MCI *, char *, const char *, ADDRESS *, time_t, ENVELOPE *, ADDRESS *, int));
2778 extern void logsender __P((ENVELOPE *, char *));
2779 extern void PRINTFLIKE(3, 4) sm_syslog __P((int, const char *, const char *, ...));
2782 extern void giveresponse __P((int, char *, MAILER *, MCI *, ADDRESS *, time_t, ENVELOPE *, ADDRESS *));
2783 extern int reply __P((MAILER *, MCI *, ENVELOPE *, time_t, void (*)__P((char *, bool, MAILER *, MCI *, ENVELOPE *)), char **, int, char **));
2784 extern void smtp __P((char *volatile, BITMAP256, ENVELOPE *volatile));
2786 extern int smtpauth __P((MAILER *, MCI *, ENVELOPE *));
2788 extern void smtpclrse __P((ENVELOPE *));
2789 extern int smtpdata __P((MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t));
2790 extern int smtpgetstat __P((MAILER *, MCI *, ENVELOPE *));
2791 extern int smtpmailfrom __P((MAILER *, MCI *, ENVELOPE *));
2792 extern void smtpmessage __P((char *, MAILER *, MCI *, ...));
2793 extern void smtpinit __P((MAILER *, MCI *, ENVELOPE *, bool));
2794 extern char *smtptodsn __P((int));
2795 extern int smtpprobe __P((MCI *));
2796 extern void smtpquit __P((MAILER *, MCI *, ENVELOPE *));
2797 extern int smtprcpt __P((ADDRESS *, MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t));
2798 extern void smtprset __P((MAILER *, MCI *, ENVELOPE *));
2800 #define REPLYTYPE(r) ((r) / 100) /* first digit of reply code */
2801 #define REPLYCLASS(r) (((r) / 10) % 10) /* second digit of reply code */
2802 #define REPLYMINOR(r) ((r) % 10) /* last digit of reply code */
2803 #define ISSMTPCODE(c) (isascii(c[0]) && isdigit(c[0]) && \
2804 isascii(c[1]) && isdigit(c[1]) && \
2805 isascii(c[2]) && isdigit(c[2]))
2806 #define ISSMTPREPLY(c) (ISSMTPCODE(c) && \
2807 (c[3] == ' ' || c[3] == '-' || c[3] == '\0'))
2808 #define SM_ISSPACE(c) (isascii(c) && isspace(c))
2811 extern pid_t dowork __P((int, int, char *, bool, bool, ENVELOPE *));
2812 extern pid_t doworklist __P((ENVELOPE *, bool, bool));
2813 extern int endmailer __P((MCI *, ENVELOPE *, char **));
2814 extern int mailfile __P((char *volatile, MAILER *volatile, ADDRESS *, volatile long, ENVELOPE *));
2815 extern void sendall __P((ENVELOPE *, int));
2818 #define STATS_NORMAL 'n'
2819 #define STATS_QUARANTINE 'q'
2820 #define STATS_REJECT 'r'
2821 #define STATS_CONNECT 'c'
2823 extern void markstats __P((ENVELOPE *, ADDRESS *, int));
2824 extern void clearstats __P((void));
2825 extern void poststats __P((char *));
2827 /* control socket */
2828 extern void closecontrolsocket __P((bool));
2829 extern void clrcontrol __P((void));
2830 extern void control_command __P((int, ENVELOPE *));
2831 extern int opencontrolsocket __P((void));
2834 /* milter functions */
2835 extern void milter_config __P((char *, struct milter **, int));
2836 extern void milter_setup __P((char *));
2837 extern void milter_set_option __P((char *, char *, bool));
2838 extern bool milter_init __P((ENVELOPE *, char *, milters_T *));
2839 extern void milter_quit __P((ENVELOPE *));
2840 extern void milter_abort __P((ENVELOPE *));
2841 extern char *milter_connect __P((char *, SOCKADDR, ENVELOPE *, char *));
2842 extern char *milter_helo __P((char *, ENVELOPE *, char *));
2843 extern char *milter_envfrom __P((char **, ENVELOPE *, char *));
2844 extern char *milter_data_cmd __P((ENVELOPE *, char *));
2845 extern char *milter_envrcpt __P((char **, ENVELOPE *, char *, bool));
2846 extern char *milter_data __P((ENVELOPE *, char *));
2847 extern char *milter_unknown __P((char *, ENVELOPE *, char *));
2850 extern char *addquotes __P((char *, SM_RPOOL_T *));
2851 extern char *arpadate __P((char *));
2852 extern bool atobool __P((char *));
2853 extern int atooct __P((char *));
2854 extern void auth_warning __P((ENVELOPE *, const char *, ...));
2855 extern int blocksignal __P((int));
2856 extern bool bitintersect __P((BITMAP256, BITMAP256));
2857 extern bool bitzerop __P((BITMAP256));
2858 extern int check_bodytype __P((char *));
2859 extern void buildfname __P((char *, char *, char *, int));
2860 extern bool chkclientmodifiers __P((int));
2861 extern bool chkdaemonmodifiers __P((int));
2862 extern int checkcompat __P((ADDRESS *, ENVELOPE *));
2864 extern void checkfd012 __P((char *));
2865 extern void checkfdopen __P((int, char *));
2867 # define checkfd012(str) ((void) 0)
2868 # define checkfdopen(n, str) ((void) 0)
2870 extern void checkfds __P((char *));
2871 extern bool chownsafe __P((int, bool));
2872 extern void cleanstrcpy __P((char *, char *, int));
2874 extern void cleanup_shm __P((bool));
2876 extern void close_sendmail_pid __P((void));
2877 extern void clrdaemon __P((void));
2878 extern void collect __P((SM_FILE_T *, int, HDR **, ENVELOPE *, bool));
2879 extern time_t convtime __P((char *, int));
2880 extern char **copyplist __P((char **, bool, SM_RPOOL_T *));
2881 extern void copy_class __P((int, int));
2882 extern int count_open_connections __P((SOCKADDR *));
2883 extern time_t curtime __P((void));
2884 extern char *defcharset __P((ENVELOPE *));
2885 extern char *denlstring __P((char *, bool, bool));
2886 extern void dferror __P((SM_FILE_T *volatile, char *, ENVELOPE *));
2887 extern void disconnect __P((int, ENVELOPE *));
2888 extern void disk_status __P((SM_FILE_T *, char *));
2889 extern int dns_getcanonname __P((char *, int, bool, int *, int *));
2890 extern pid_t dofork __P((void));
2891 extern int drop_privileges __P((bool));
2892 extern int dsntoexitstat __P((char *));
2893 extern void dumpfd __P((int, bool, bool));
2895 extern void dumpstab __P((void));
2897 extern void dumpstate __P((char *));
2898 extern bool enoughdiskspace __P((long, ENVELOPE *));
2899 extern char *exitstat __P((char *));
2900 extern void fatal_error __P((SM_EXC_T *));
2901 extern char *fgetfolded __P((char *, int *, SM_FILE_T *));
2902 extern void fill_fd __P((int, char *));
2903 extern char *find_character __P((char *, int));
2904 extern int finduser __P((char *, bool *, SM_MBDB_T *));
2905 extern void finis __P((bool, bool, volatile int));
2906 extern void fixcrlf __P((char *, bool));
2907 extern long freediskspace __P((const char *, long *));
2908 #if NETINET6 && NEEDSGETIPNODE
2909 extern void freehostent __P((struct hostent *));
2911 extern char *get_column __P((char *, int, int, char *, int));
2912 extern char *getauthinfo __P((int, bool *));
2913 extern int getdtsize __P((void));
2914 extern int getla __P((void));
2915 extern char *getmodifiers __P((char *, BITMAP256));
2916 extern BITMAP256 *getrequests __P((ENVELOPE *));
2917 extern char *getvendor __P((int));
2918 extern void help __P((char *, ENVELOPE *));
2919 extern void init_md __P((int, char **));
2920 extern void initdaemon __P((void));
2921 extern void inithostmaps __P((void));
2922 extern void initmacros __P((ENVELOPE *));
2923 extern void initsetproctitle __P((int, char **, char **));
2924 extern void init_vendor_macros __P((ENVELOPE *));
2925 extern SIGFUNC_DECL intsig __P((int));
2926 extern bool isatom __P((const char *));
2927 extern bool isloopback __P((SOCKADDR sa));
2928 extern void load_if_names __P((void));
2929 extern bool lockfile __P((int, char *, char *, int));
2930 extern void log_sendmail_pid __P((ENVELOPE *));
2931 extern void logundelrcpts __P((ENVELOPE *, char *, int, bool));
2932 extern char lower __P((int));
2933 extern char *makelower_a __P((char **, SM_RPOOL_T *));
2934 extern void makelower_buf __P((char *, char *, int));
2935 extern int makeconnection_ds __P((char *, MCI *));
2937 extern int makeconnection __P((char *, volatile unsigned int, MCI *, ENVELOPE *, time_t, unsigned long *));
2939 extern int makeconnection __P((char *, volatile unsigned int, MCI *, ENVELOPE *, time_t));
2941 extern void makeworkgroups __P((void));
2942 extern void markfailure __P((ENVELOPE *, ADDRESS *, MCI *, int, bool));
2943 extern void mark_work_group_restart __P((int, int));
2944 extern MCI *mci_new __P((SM_RPOOL_T *));
2945 extern char *munchstring __P((char *, char **, int));
2946 extern struct hostent *myhostname __P((char *, int));
2947 #if SM_HEAP_CHECK > 2
2948 extern char *newstr_tagged __P((const char *, char *, int, int));
2949 # define newstr(str) newstr_tagged(str, "newstr:" __FILE__, __LINE__, SmHeapGroup)
2951 extern char *newstr __P((const char *));
2952 # define newstr_tagged(str, file, line, grp) newstr(str)
2955 extern char *nisplus_default_domain __P((void)); /* extern for Sun */
2957 extern bool path_is_dir __P((char *, bool));
2958 extern int pickqdir __P((QUEUEGRP *qg, long fsize, ENVELOPE *e));
2959 extern char *pintvl __P((time_t, bool));
2960 extern void printav __P((SM_FILE_T *, char **));
2961 extern void printmailer __P((SM_FILE_T *, MAILER *));
2962 extern void printnqe __P((SM_FILE_T *, char *));
2963 extern void printopenfds __P((bool));
2964 extern void printqueue __P((void));
2965 extern void printrules __P((void));
2966 extern pid_t prog_open __P((char **, int *, ENVELOPE *));
2967 extern bool putline __P((char *, MCI *));
2968 extern bool putxline __P((char *, size_t, MCI *, int));
2969 extern void queueup_macros __P((int, SM_FILE_T *, ENVELOPE *));
2970 extern void readcf __P((char *, bool, ENVELOPE *));
2971 extern SIGFUNC_DECL reapchild __P((int));
2972 extern int releasesignal __P((int));
2973 extern void resetlimits __P((void));
2974 extern void restart_daemon __P((void));
2975 extern void restart_marked_work_groups __P((void));
2976 extern bool rfc822_string __P((char *));
2977 extern void rmexpstab __P((void));
2978 extern bool savemail __P((ENVELOPE *, bool));
2979 extern void seed_random __P((void));
2980 extern void sendtoargv __P((char **, ENVELOPE *));
2981 extern void setclientoptions __P((char *));
2982 extern bool setdaemonoptions __P((char *));
2983 extern void setdefaults __P((ENVELOPE *));
2984 extern void setdefuser __P((void));
2985 extern bool setvendor __P((char *));
2986 extern void set_op_mode __P((int));
2987 extern void setoption __P((int, char *, bool, bool, ENVELOPE *));
2988 extern sigfunc_t setsignal __P((int, sigfunc_t));
2989 extern void sm_setuserenv __P((const char *, const char *));
2990 extern void settime __P((ENVELOPE *));
2992 extern int set_tls_rd_tmo __P((int));
2994 # define set_tls_rd_tmo(rd_tmo) 0
2996 extern char *sfgets __P((char *, int, SM_FILE_T *, time_t, char *));
2997 extern char *shortenstring __P((const char *, size_t));
2998 extern char *shorten_hostname __P((char []));
2999 extern bool shorten_rfc822_string __P((char *, size_t));
3000 extern void showcfopts __P((void));
3001 extern void shutdown_daemon __P((void));
3002 extern void sm_closefrom __P((int lowest, int highest));
3003 extern void sm_close_on_exec __P((int lowest, int highest));
3004 extern struct hostent *sm_gethostbyname __P((char *, int));
3005 extern struct hostent *sm_gethostbyaddr __P((char *, int, int));
3006 extern void sm_getla __P((void));
3007 extern struct passwd *sm_getpwnam __P((char *));
3008 extern struct passwd *sm_getpwuid __P((UID_T));
3009 extern void sm_setproctitle __P((bool, ENVELOPE *, const char *, ...));
3010 extern pid_t sm_wait __P((int *));
3011 extern bool split_by_recipient __P((ENVELOPE *e));
3012 extern void stop_sendmail __P((void));
3013 extern void stripbackslash __P((char *));
3014 extern bool strreplnonprt __P((char *, int));
3015 extern bool strcontainedin __P((bool, char *, char *));
3016 extern int switch_map_find __P((char *, char *[], short []));
3018 extern void tls_set_verify __P((SSL_CTX *, SSL *, bool));
3020 extern bool transienterror __P((int));
3021 extern void truncate_at_delim __P((char *, size_t, int));
3022 extern void tTflag __P((char *));
3023 extern void tTsetup __P((unsigned char *, unsigned int, char *));
3024 extern SIGFUNC_DECL tick __P((int));
3025 extern char *ttypath __P((void));
3026 extern void unlockqueue __P((ENVELOPE *));
3028 extern void unsetenv __P((char *));
3031 /* update file system information: +/- some blocks */
3033 extern void upd_qs __P((ENVELOPE *, int, int, char *));
3034 # define updfs(e, count, space, where) upd_qs(e, count, space, where)
3035 #else /* SM_CONF_SHM */
3036 # define updfs(e, count, space, where)
3037 # define upd_qs(e, count, space, where)
3038 #endif /* SM_CONF_SHM */
3040 extern char *username __P((void));
3041 extern bool usershellok __P((char *, char *));
3042 extern void vendor_post_defaults __P((ENVELOPE *));
3043 extern void vendor_pre_defaults __P((ENVELOPE *));
3044 extern int waitfor __P((pid_t));
3045 extern bool writable __P((char *, ADDRESS *, long));
3047 # define xalloc(size) xalloc_tagged(size, __FILE__, __LINE__)
3048 extern char *xalloc_tagged __P((int, char *, int));
3050 extern char *xalloc __P((int));
3051 #endif /* SM_HEAP_CHECK */
3053 extern int xconnect __P((SM_FILE_T *));
3055 extern void xputs __P((SM_FILE_T *, const char *));
3056 extern char *xtextify __P((char *, char *));
3057 extern bool xtextok __P((char *));
3058 extern int xunlink __P((char *));
3059 extern char *xuntextify __P((char *));
3061 /* flags for collect() */
3062 #define SMTPMODE_NO 0
3063 #define SMTPMODE_LAX 0x01
3064 #define SMTPMODE_CRLF 0x02 /* CRLF.CRLF required for EOM */
3065 #define SMTPMODE_LF_421 0x04 /* bare LF: drop connection */
3066 #define SMTPMODE_CR_421 0x08 /* bare CR: drop connection */
3067 #define SMTPMODE_LF_SP 0x10 /* bare LF: replace with space */
3068 #define SMTPMODE_CR_SP 0x20 /* bare CR: replace with space */
3070 #define ASSIGN_IFDIFF(old, new) \
3073 if ((new) != (old)) \
3082 extern bool addr_is_ascii __P((const char *));
3083 extern bool str_is_print __P((const char *));
3084 extern const char *hn2alabel __P((const char *));
3088 extern bool newmodmailer __P((ADDRESS *, int));
3091 #define SM_CLOSE_FP(fp) \
3096 (void) sm_io_close((fp), SM_TIME_DEFAULT); \
3102 #endif /* ! _SENDMAIL_H */
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