2 * Copyright (c) 1998-2013 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 # undef EX_OK /* for SVr4.2 SMP */
43 #include "sendmail/sendmail.h"
46 # include <openssl/ssl.h>
47 # if _FFR_TLSA_DANE && !defined(DANE)
48 # define DANE _FFR_TLSA_DANE
54 # define SM_PROF(x) moncontrol(x)
61 SM_UNUSED(static char SmailId[]) = "@(#)$Id: sendmail.h,v 8.1104 2013-11-22 20:51:56 ca Exp $";
73 #include <sm/signal.h>
76 #include <sm/errstring.h>
77 #include <sm/sysexits.h>
85 #if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25
86 # include <sys/socket.h>
91 #if NETINET || NETINET6
92 # include <netinet/in.h>
96 ** There is no standard yet for IPv6 includes.
97 ** Specify OS specific implementation in conf.h
101 # include <netiso/iso.h>
104 # include <netns/ns.h>
107 # include <netccitt/x25.h>
111 # include <arpa/nameser.h>
113 # undef NOERROR /* avoid <sys/streams.h> conflict */
116 #else /* NAMED_BIND */
117 # undef SM_SET_H_ERRNO
118 # define SM_SET_H_ERRNO(err)
119 #endif /* NAMED_BIND */
123 # if !defined(HES_ER_OK) || defined(HESIOD_INTERFACES)
124 # define HESIOD_INIT /* support for the new interface */
128 #if _FFR_EAI && !defined(ALLOW_255)
134 struct dane_vrfy_ctx_S
140 /* look up TLSA RRs, SNI unless dane_tlsa_sni is set. */
141 char *dane_vrfy_host;
142 char *dane_vrfy_sni; /* if not NULL: use for SNI */
144 /* full fingerprint in printable format */
145 char dane_vrfy_fp[1024];
148 typedef struct dane_tlsa_S dane_tlsa_T, *dane_tlsa_P;
149 typedef struct dane_vrfy_ctx_S dane_vrfy_ctx_T, *dane_vrfy_ctx_P;
152 /* TLS information context */
155 /* use unsigned long? */
156 BITMAP256 tlsi_flags;
158 dane_vrfy_ctx_T tlsi_dvc;
161 typedef struct tlsi_ctx_S tlsi_ctx_T, *tlsi_ctx_P;
163 /* TLS information context flags */
164 #define TLSI_FL_CRLREQ 'R' /* CRL required */
165 #define TLSI_FL_FB2CLR 'C' /* fall back to clear text is ok */
166 #define TLSI_FL_NOFB2CLR 'c' /* do not fall back to clear text */
167 #define TLSI_FL_NODANE 'd' /* do not use/lookup DANE */
168 #define SM_TLSI_IS(tlsi_ctx, flag) \
169 (((tlsi_ctx) != NULL) && bitnset((flag), (tlsi_ctx)->tlsi_flags))
171 /* ugly hack, is it worth using different values? */
172 # if _FFR_LOG_MORE1 > 1 || _FFR_LOG_MORE2 > 1
173 # define LOG_MORE_2(buf, bp) \
174 p = macvalue(macid("{tls_version}"), e); \
175 if (p == NULL || *p == '\0') \
177 (void) sm_snprintf(bp, SPACELEFT(buf, bp), ", tls_version=%.10s", p); \
179 p = macvalue(macid("{cipher}"), e); \
180 if (p == NULL || *p == '\0') \
182 (void) sm_snprintf(bp, SPACELEFT(buf, bp), ", cipher=%.20s", p); \
185 # define LOG_MORE_2(buf, bp)
188 # define LOG_MORE(buf, bp) \
189 p = macvalue(macid("{verify}"), e); \
190 if (p == NULL || *p == '\0') \
192 (void) sm_snprintf(bp, SPACELEFT(buf, bp), ", tls_verify=%.20s", p); \
197 # define LOG_MORE(buf, bp)
198 #endif /* STARTTLS */
201 /* include the sasl include files if we have them */
202 # if SASL == 2 || SASL >= 20000
203 # include <sasl/sasl.h>
204 # include <sasl/saslplug.h>
205 # include <sasl/saslutil.h>
206 # if SASL_VERSION_FULL < 0x020119
207 typedef int (*sasl_callback_ft)(void);
209 # else /* SASL == 2 || SASL >= 20000 */
211 # include <saslutil.h>
212 typedef int (*sasl_callback_ft)(void);
213 # endif /* SASL == 2 || SASL >= 20000 */
214 # if defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP)
215 # define SASL_VERSION (SASL_VERSION_MAJOR * 10000) + (SASL_VERSION_MINOR * 100) + SASL_VERSION_STEP
216 # if SASL == 1 || SASL == 2
218 # define SASL SASL_VERSION
219 # else /* SASL == 1 || SASL == 2 */
220 # if SASL != SASL_VERSION
221 ERROR README: -DSASL (SASL) does not agree with the version of the CYRUS_SASL library (SASL_VERSION)
222 ERROR README: see README!
223 # endif /* SASL != SASL_VERSION */
224 # endif /* SASL == 1 || SASL == 2 */
225 # else /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */
227 ERROR README: please set -DSASL to the version of the CYRUS_SASL library
228 ERROR README: see README!
229 # endif /* SASL == 1 */
230 # endif /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */
234 ** Following are "sort of" configuration constants, but they should
235 ** be pretty solid on most architectures today. They have to be
236 ** defined after <arpa/nameser.h> because some versions of that
237 ** file also define them. In all cases, we can't use sizeof because
238 ** some systems (e.g., Crays) always treat everything as being at
243 # define INADDRSZ 4 /* size of an IPv4 address in bytes */
246 # define IN6ADDRSZ 16 /* size of an IPv6 address in bytes */
249 # define INT16SZ 2 /* size of a 16 bit integer in bytes */
252 # define INT32SZ 4 /* size of a 32 bit integer in bytes */
254 #ifndef INADDR_LOOPBACK
255 # define INADDR_LOOPBACK 0x7f000001 /* loopback address */
259 ** Error return from inet_addr(3), in case not defined in /usr/include.
263 # define INADDR_NONE 0xffffffff
266 /* By default use uncompressed IPv6 address format (no "::") */
271 /* (f)open() modes for queue files */
274 #define SM_ARRAY_SIZE(array) (sizeof(array) / sizeof((array)[0]))
277 ** An 'argument class' describes the storage allocation status
278 ** of an object pointed to by an argument to a function.
283 A_HEAP, /* the storage was allocated by malloc, and the
284 * ownership of the storage is ceded by the caller
285 * to the called function. */
286 A_TEMP, /* The storage is temporary, and is only guaranteed
287 * to be valid for the duration of the function call. */
288 A_PERM /* The storage is 'permanent': this might mean static
289 * storage, or rpool storage. */
292 /* forward references for prototypes */
293 typedef struct envelope ENVELOPE;
294 typedef struct mailer MAILER;
295 typedef struct queuegrp QUEUEGRP;
298 ** Address structure.
299 ** Addresses are stored internally in this structure.
304 char *q_paddr; /* the printname for the address */
305 char *q_user; /* user name */
306 char *q_ruser; /* real user name, or NULL if q_user */
307 char *q_host; /* host name */
309 char *q_qname; /* original query (host) name */
311 struct mailer *q_mailer; /* mailer to use */
312 unsigned long q_flags; /* status flags, see below */
313 uid_t q_uid; /* user-id of receiver (if known) */
314 gid_t q_gid; /* group-id of receiver (if known) */
315 char *q_home; /* home dir (local mailer only) */
316 char *q_fullname; /* full name if known */
317 struct address *q_next; /* chain */
318 struct address *q_alias; /* address this results from */
319 char *q_owner; /* owner of q_alias */
320 struct address *q_tchain; /* temporary use chain */
322 struct address *q_pchain; /* chain for pipelining */
324 char *q_finalrcpt; /* Final-Recipient: DSN header */
325 char *q_orcpt; /* ORCPT parameter from RCPT TO: line */
326 char *q_status; /* status code for DSNs */
327 char *q_rstatus; /* remote status message for DSNs */
328 time_t q_statdate; /* date of status messages */
329 char *q_statmta; /* MTA generating q_rstatus */
330 short q_state; /* address state, see below */
331 char *q_signature; /* MX-based sorting value */
332 int q_qgrp; /* index into queue groups */
333 char *q_message; /* error message */
336 typedef struct address ADDRESS;
338 /* bit values for q_flags */
339 #define QGOODUID 0x00000001 /* the q_uid q_gid fields are good */
340 #define QPRIMARY 0x00000002 /* set from RCPT or argv */
341 #define QNOTREMOTE 0x00000004 /* address not for remote forwarding */
342 #define QSELFREF 0x00000008 /* this address references itself */
343 #define QBOGUSSHELL 0x00000010 /* user has no valid shell listed */
344 #define QUNSAFEADDR 0x00000020 /* address acquired via unsafe path */
345 #define QPINGONSUCCESS 0x00000040 /* give return on successful delivery */
346 #define QPINGONFAILURE 0x00000080 /* give return on failure */
347 #define QPINGONDELAY 0x00000100 /* give return on message delay */
348 #define QHASNOTIFY 0x00000200 /* propagate notify parameter */
349 #define QRELAYED 0x00000400 /* DSN: relayed to non-DSN aware sys */
350 #define QEXPANDED 0x00000800 /* DSN: undergone list expansion */
351 #define QDELIVERED 0x00001000 /* DSN: successful final delivery */
352 #define QDELAYED 0x00002000 /* DSN: message delayed */
353 #define QALIAS 0x00004000 /* expanded alias */
354 #define QBYTRACE 0x00008000 /* DeliverBy: trace */
355 #define QBYNDELAY 0x00010000 /* DeliverBy: notify, delay */
356 #define QBYNRELAY 0x00020000 /* DeliverBy: notify, relayed */
357 #define QINTBCC 0x00040000 /* internal Bcc */
358 #define QDYNMAILER 0x00080000 /* "dynamic mailer" */
359 #define QSECURE 0x00100000 /* DNSSEC ok */
360 #define QQUEUED 0x00200000 /* queued */
361 #define QTHISPASS 0x40000000 /* temp: address set this pass */
362 #define QRCPTOK 0x80000000 /* recipient() processed address */
364 #define QDYNMAILFLG 'Y'
366 #define Q_PINGFLAGS (QPINGONSUCCESS|QPINGONFAILURE|QPINGONDELAY)
369 # define QMATCHFLAGS (QINTBCC|QDYNMAILER)
370 # define QMATCH_FLAG(a) ((a)->q_flags & QMATCHFLAGS)
371 # define ADDR_FLAGS_MATCH(a, b) (QMATCH_FLAG(a) == QMATCH_FLAG(b))
373 # define ADDR_FLAGS_MATCH(a, b) true
376 /* values for q_state */
377 #define QS_OK 0 /* address ok (for now)/not yet tried */
378 #define QS_SENT 1 /* good address, delivery complete */
379 #define QS_BADADDR 2 /* illegal address */
380 #define QS_QUEUEUP 3 /* save address in queue */
381 #define QS_RETRY 4 /* retry delivery for next MX */
382 #define QS_VERIFIED 5 /* verified, but not expanded */
385 ** Notice: all of the following values are variations of QS_DONTSEND.
386 ** If new states are added, they must be inserted in the proper place!
387 ** See the macro definition of QS_IS_DEAD() down below.
390 #define QS_DONTSEND 6 /* don't send to this address */
391 #define QS_EXPANDED 7 /* expanded */
392 #define QS_SENDER 8 /* message sender (MeToo) */
393 #define QS_CLONED 9 /* addr cloned to split envelope */
394 #define QS_DISCARDED 10 /* rcpt discarded (EF_DISCARD) */
395 #define QS_REPLACED 11 /* maplocaluser()/UserDB replaced */
396 #define QS_REMOVED 12 /* removed (removefromlist()) */
397 #define QS_DUPLICATE 13 /* duplicate suppressed */
398 #define QS_INCLUDED 14 /* :include: delivery */
399 #define QS_FATALERR 15 /* fatal error, don't deliver */
401 /* address state testing primitives */
402 #define QS_IS_OK(s) ((s) == QS_OK)
403 #define QS_IS_SENT(s) ((s) == QS_SENT)
404 #define QS_IS_BADADDR(s) ((s) == QS_BADADDR)
405 #define QS_IS_QUEUEUP(s) ((s) == QS_QUEUEUP)
406 #define QS_IS_RETRY(s) ((s) == QS_RETRY)
407 #define QS_IS_VERIFIED(s) ((s) == QS_VERIFIED)
408 #define QS_IS_EXPANDED(s) ((s) == QS_EXPANDED)
409 #define QS_IS_REMOVED(s) ((s) == QS_REMOVED)
410 #define QS_IS_UNDELIVERED(s) ((s) == QS_OK || \
411 (s) == QS_QUEUEUP || \
414 #define QS_IS_UNMARKED(s) ((s) == QS_OK || \
416 #define QS_IS_SENDABLE(s) ((s) == QS_OK || \
417 (s) == QS_QUEUEUP || \
419 #define QS_IS_ATTEMPTED(s) ((s) == QS_QUEUEUP || \
423 #define QS_IS_DEAD(s) ((s) >= QS_DONTSEND)
424 #define QS_IS_TEMPFAIL(s) ((s) == QS_QUEUEUP || (s) == QS_RETRY)
426 #define NULLADDR ((ADDRESS *) NULL)
428 extern ADDRESS NullAddress; /* a null (template) address [main.c] */
431 #define NOSPACESEP 256
434 extern void cataddr __P((char **, char **, char *, int, int, bool));
435 extern char *crackaddr __P((char *, ENVELOPE *));
436 extern bool emptyaddr __P((ADDRESS *));
437 extern ADDRESS *getctladdr __P((ADDRESS *));
438 extern int include __P((char *, bool, ADDRESS *, ADDRESS **, int, ENVELOPE *));
439 extern bool invalidaddr __P((char *, char *, bool));
440 extern ADDRESS *parseaddr __P((char *, ADDRESS *, int, int, char **,
442 extern char **prescan __P((char *, int, char[], int, char **, unsigned char *, bool));
443 extern void printaddr __P((SM_FILE_T *, ADDRESS *, bool));
444 extern ADDRESS *recipient __P((ADDRESS *, ADDRESS **, int, ENVELOPE *));
445 extern char *remotename __P((char *, MAILER *, int, int *, ENVELOPE *));
446 extern int rewrite __P((char **, int, int, ENVELOPE *, int));
447 extern bool sameaddr __P((ADDRESS *, ADDRESS *));
448 extern int sendtolist __P((char *, ADDRESS *, ADDRESS **, int, ENVELOPE *));
450 extern int removefromlist __P((char *, ADDRESS **, ENVELOPE *));
452 extern void setsender __P((char *, ENVELOPE *, char **, int, bool));
453 typedef void esmtp_args_F __P((ADDRESS *, char *, char *, ENVELOPE *));
454 extern void parse_esmtp_args __P((ENVELOPE *, ADDRESS *, char *, char *,
455 char *, char *args[], esmtp_args_F));
456 extern esmtp_args_F mail_esmtp_args;
457 extern esmtp_args_F rcpt_esmtp_args;
458 extern void reset_mail_esmtp_args __P((ENVELOPE *));
460 /* macro to simplify the common call to rewrite() */
461 #define REWRITE(pvp, rs, env) rewrite(pvp, rs, 0, env, MAXATOM)
464 ** Token Tables for prescan
467 extern unsigned char ExtTokenTab[256]; /* external strings */
468 extern unsigned char IntTokenTab[256]; /* internal strings */
472 ** Mailer definition structure.
473 ** Every mailer known to the system is declared in this
474 ** structure. It defines the pathname of the mailer, some
475 ** flags associated with it, and the argument vector to
476 ** pass to it. The flags are defined in conf.c
478 ** The argument vector is expanded before actual use. All
479 ** words except the first are passed through the macro
485 char *m_name; /* symbolic name of this mailer */
486 char *m_mailer; /* pathname of the mailer to use */
487 char *m_mtatype; /* type of this MTA */
488 char *m_addrtype; /* type for addresses */
489 char *m_diagtype; /* type for diagnostics */
490 BITMAP256 m_flags; /* status flags, see below */
491 short m_mno; /* mailer number internally */
492 short m_nice; /* niceness to run at (mostly for prog) */
493 char **m_argv; /* template argument vector */
494 short m_sh_rwset; /* rewrite set: sender header addresses */
495 short m_se_rwset; /* rewrite set: sender envelope addresses */
496 short m_rh_rwset; /* rewrite set: recipient header addresses */
497 short m_re_rwset; /* rewrite set: recipient envelope addresses */
498 char *m_eol; /* end of line string */
499 long m_maxsize; /* size limit on message to this mailer */
500 int m_linelimit; /* max # characters per line */
501 int m_maxdeliveries; /* max deliveries per mailer connection */
502 char *m_execdir; /* directory to chdir to before execv */
503 char *m_rootdir; /* directory to chroot to before execv */
504 uid_t m_uid; /* UID to run as */
505 gid_t m_gid; /* GID to run as */
506 char *m_defcharset; /* default character set */
507 time_t m_wait; /* timeout to wait for end */
508 int m_maxrcpt; /* max recipients per envelope client-side */
509 short m_qgrp; /* queue group for this mailer */
511 unsigned short m_port; /* port (if appropriate for mailer) */
512 # define M_PORT(m) ((m)->m_port)
514 # define M_PORT(m) (-1)
518 /* bits for m_flags */
519 #define M_xSMTP 0x01 /* internal: {ES,S,L}MTP */
520 #define M_ESMTP 'a' /* run Extended SMTP */
521 #define M_ALIASABLE 'A' /* user can be LHS of an alias */
522 #define M_BLANKEND 'b' /* ensure blank line at end of message */
523 #define M_STRIPBACKSL 'B' /* strip all leading backslashes from user */
524 #define M_NOCOMMENT 'c' /* don't include comment part of address */
525 #define M_CANONICAL 'C' /* make addresses canonical "u@dom" */
526 #define M_NOBRACKET 'd' /* never angle bracket envelope route-addrs */
527 /* 'D' CF: include Date: */
528 #define M_EXPENSIVE 'e' /* it costs to use this mailer.... */
529 #define M_ESCFROM 'E' /* escape From lines to >From */
530 #define M_FOPT 'f' /* mailer takes picky -f flag */
531 /* 'F' CF: include From: or Resent-From: */
532 #define M_NO_NULL_FROM 'g' /* sender of errors should be $g */
533 #define M_HST_UPPER 'h' /* preserve host case distinction */
534 #define M_PREHEAD 'H' /* MAIL11V3: preview headers */
535 #define M_UDBENVELOPE 'i' /* do udbsender rewriting on envelope */
536 #define M_INTERNAL 'I' /* SMTP to another sendmail site */
537 #define M_UDBRECIPIENT 'j' /* do udbsender rewriting on recipient lines */
538 #define M_NOLOOPCHECK 'k' /* don't check for loops in HELO command */
539 #define M_CHUNKING 'K' /* CHUNKING: reserved for future use */
540 #define M_LOCALMAILER 'l' /* delivery is to this host */
541 #define M_LIMITS 'L' /* must enforce SMTP line limits */
542 #define M_MUSER 'm' /* can handle multiple users at once */
543 /* 'M' CF: include Message-Id: */
544 #define M_NHDR 'n' /* don't insert From line */
545 #define M_MANYSTATUS 'N' /* MAIL11V3: DATA returns multi-status */
546 #define M_RUNASRCPT 'o' /* always run mailer as recipient */
548 #define M_FROMPATH 'p' /* use reverse-path in MAIL FROM: */
549 /* 'P' CF: include Return-Path: */
550 #define M_VRFY250 'q' /* VRFY command returns 250 instead of 252 */
551 #define M_ROPT 'r' /* mailer takes picky -r flag */
552 #define M_SECURE_PORT 'R' /* try to send on a reserved TCP port */
553 #define M_STRIPQ 's' /* strip quote chars from user/host */
554 #define M_SPECIFIC_UID 'S' /* run as specific uid/gid */
555 #define M_USR_UPPER 'u' /* preserve user case distinction */
556 #define M_UGLYUUCP 'U' /* this wants an ugly UUCP from line */
557 #define M_CONTENT_LEN 'v' /* add Content-Length: header (SVr4) */
558 /* 'V' UIUC: !-relativize all addresses */
559 #define M_HASPWENT 'w' /* check for /etc/passwd entry */
560 #define M_NOHOSTSTAT 'W' /* ignore long term host status information */
561 /* 'x' CF: include Full-Name: */
562 #define M_XDOT 'X' /* use hidden-dot algorithm */
565 #define M_LMTP 'z' /* run Local Mail Transport Protocol */
566 #define M_DIALDELAY 'Z' /* apply dial delay sleeptime */
567 #define M_NOMX '0' /* turn off MX lookups */
568 #define M_NONULLS '1' /* don't send null bytes */
569 #define M_FSMTP '2' /* force SMTP (no ESMTP even if offered) */
571 #define M_EBCDIC '3' /* extend Q-P encoding for EBCDIC */
572 #define M_TRYRULESET5 '5' /* use ruleset 5 after local aliasing */
573 #define M_7BITHDRS '6' /* strip headers to 7 bits even in 8 bit path */
574 #define M_7BITS '7' /* use 7-bit path */
575 #define M_8BITS '8' /* force "just send 8" behaviour */
576 #define M_MAKE8BIT '9' /* convert 7 -> 8 bit if appropriate */
577 #define M_CHECKINCLUDE ':' /* check for :include: files */
578 #define M_CHECKPROG '|' /* check for |program addresses */
579 #define M_CHECKFILE '/' /* check for /file addresses */
580 #define M_CHECKUDB '@' /* user can be user database key */
581 #define M_CHECKHDIR '~' /* SGI: check for valid home directory */
582 #define M_HOLD '%' /* Hold delivery until ETRN/-qI/-qR/-qS */
583 #define M_PLUS '+' /* Reserved: Used in mc for adding new flags */
584 #define M_MINUS '-' /* Reserved: Used in mc for removing flags */
585 #define M_NOMHHACK '!' /* Don't perform HM hack dropping explicit from */
588 extern void initerrmailers __P((void));
589 extern void makemailer __P((char *));
590 extern void makequeue __P((char *, bool));
591 extern void runqueueevent __P((int));
592 #if _FFR_QUEUE_RUN_PARANOIA
593 extern bool checkqueuerunner __P((void));
596 EXTERN MAILER *FileMailer; /* ptr to *file* mailer */
597 EXTERN MAILER *InclMailer; /* ptr to *include* mailer */
598 EXTERN MAILER *LocalMailer; /* ptr to local mailer */
599 EXTERN MAILER *ProgMailer; /* ptr to program mailer */
601 EXTERN MAILER *Mailer[MAXMAILERS * 2 + 1];
603 EXTERN MAILER *Mailer[MAXMAILERS + 1];
607 ** Queue group definition structure.
608 ** Every queue group known to the system is declared in this structure.
609 ** It defines the basic pathname of the queue group, some flags
610 ** associated with it, and the argument vector to pass to it.
615 char *qp_name; /* name of queue dir, relative path */
616 short qp_subdirs; /* use subdirs? */
617 short qp_fsysidx; /* file system index of this directory */
619 int qp_idx; /* index into array for queue information */
623 typedef struct qpaths_s QPATHS;
627 char *qg_name; /* symbolic name of this queue group */
630 ** For now this is the same across all queue groups.
631 ** Otherwise we have to play around with chdir().
634 char *qg_qdir; /* common component of queue directory */
635 short qg_index; /* queue number internally, index in Queue[] */
636 int qg_maxqrun; /* max # of jobs in 1 queuerun */
637 int qg_numqueues; /* number of queues in this queue */
640 ** qg_queueintvl == 0 denotes that no individual value is used.
641 ** Whatever accesses this must deal with "<= 0" as
642 ** "not set, use appropriate default".
645 time_t qg_queueintvl; /* interval for queue runs */
646 QPATHS *qg_qpaths; /* list of queue directories */
647 BITMAP256 qg_flags; /* status flags, see below */
648 short qg_nice; /* niceness for queue run */
649 int qg_wgrp; /* Assigned to this work group */
650 int qg_maxlist; /* max items in work queue for this group */
651 int qg_curnum; /* current number of queue for queue runs */
652 int qg_maxrcpt; /* max recipients per envelope, 0==no limit */
654 time_t qg_nextrun; /* time for next queue runs */
655 #if _FFR_QUEUE_GROUP_SORTORDER
656 short qg_sortorder; /* how do we sort this queuerun */
659 long qg_wkrcptfact; /* multiplier for # recipients -> priority */
660 long qg_qfactor; /* slope of queue function */
661 bool qg_doqueuerun; /* XXX flag is it time to do a queuerun */
665 /* bits for qg_flags (XXX: unused as of now) */
666 #define QD_DEFINED ((char) 1) /* queue group has been defined */
667 #define QD_FORK 'f' /* fork queue runs */
669 extern void filesys_update __P((void));
671 extern bool filesys_free __P((long));
679 /* lines in authinfo file or index into SASL_AI_T */
680 # define SASL_WRONG (-1)
681 # define SASL_USER 0 /* authorization id (user) */
682 # define SASL_AUTHID 1 /* authentication id */
683 # define SASL_PASSWORD 2 /* password fuer authid */
684 # define SASL_DEFREALM 3 /* realm to use */
685 # define SASL_MECHLIST 4 /* list of mechanisms to try */
686 # define SASL_ID_REALM 5 /* authid@defrealm */
689 ** Current mechanism; this is just used to convey information between
690 ** invocation of SASL callback functions.
691 ** It must be last in the list, because it's not allocated by us
692 ** and hence we don't free() it.
695 # define SASL_ENTRIES 7 /* number of entries in array */
697 # define SASL_USER_BIT (1 << SASL_USER)
698 # define SASL_AUTHID_BIT (1 << SASL_AUTHID)
699 # define SASL_PASSWORD_BIT (1 << SASL_PASSWORD)
700 # define SASL_DEFREALM_BIT (1 << SASL_DEFREALM)
701 # define SASL_MECHLIST_BIT (1 << SASL_MECHLIST)
704 # define SASL_NOT_AUTH 0 /* not authenticated */
705 # define SASL_PROC_AUTH 1 /* in process of authenticating */
706 # define SASL_IS_AUTH 2 /* authenticated */
709 # define SASL_AUTH_AUTH 0x1000 /* use auth= only if authenticated */
711 # define SASL_SEC_MASK SASL_SEC_MAXIMUM /* mask for SASL_SEC_* values: sasl.h */
712 # else /* SASL >= 20101 */
713 # define SASL_SEC_MASK 0x0fff /* mask for SASL_SEC_* values: sasl.h */
714 # if (SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 || \
715 (SASL_SEC_NOACTIVE & SASL_SEC_MASK) == 0 || \
716 (SASL_SEC_NODICTIONARY & SASL_SEC_MASK) == 0 || \
717 (SASL_SEC_FORWARD_SECRECY & SASL_SEC_MASK) == 0 || \
718 (SASL_SEC_NOANONYMOUS & SASL_SEC_MASK) == 0 || \
719 (SASL_SEC_PASS_CREDENTIALS & SASL_SEC_MASK) == 0
720 ERROR: change SASL_SEC_MASK_ notify sendmail.org!
721 # endif /* SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 ... */
722 # endif /* SASL >= 20101 */
723 # define MAXOUTLEN 8192 /* length of output buffer, should be 2^n */
726 extern char *intersect __P((char *, char *, SM_RPOOL_T *));
727 extern char *iteminlist __P((char *, char *, char *));
729 extern int proxy_policy __P((sasl_conn_t *, void *, const char *, unsigned, const char *, unsigned, const char *, unsigned, struct propctx *));
730 extern int safesaslfile __P((void *, const char *, sasl_verify_type_t));
731 # else /* SASL >= 20000 */
732 extern int proxy_policy __P((void *, const char *, const char *, const char **, const char **));
734 extern int safesaslfile __P((void *, char *, int));
735 # else /* SASL > 10515 */
736 extern int safesaslfile __P((void *, char *));
737 # endif /* SASL > 10515 */
738 # endif /* SASL >= 20000 */
739 extern void stop_sasl_client __P((void));
741 /* structure to store authinfo */
742 typedef char *SASL_AI_T[SASL_ENTRIES];
744 EXTERN char *AuthMechanisms; /* AUTH mechanisms */
745 EXTERN char *AuthRealm; /* AUTH realm */
746 EXTERN char *SASLInfo; /* file with AUTH info */
747 EXTERN int SASLOpts; /* options for SASL */
748 EXTERN int MaxSLBits; /* max. encryption bits for SASL */
752 ** Structure to store macros.
756 SM_RPOOL_T *mac_rpool; /* resource pool */
757 BITMAP256 mac_allocated; /* storage has been alloc()? */
758 char *mac_table[MAXMACROID + 1]; /* macros */
761 EXTERN MACROS_T GlobalMacros;
764 ** Information about currently open connections to mailers, or to
765 ** hosts that we have looked up recently.
768 #define MCI struct mailer_con_info
772 unsigned long mci_flags; /* flag bits, see below */
773 short mci_errno; /* error number on last connection */
774 short mci_herrno; /* h_errno from last DNS lookup */
775 short mci_exitstat; /* exit status from last connection */
776 short mci_state; /* SMTP state */
777 int mci_deliveries; /* delivery attempts for connection */
778 long mci_maxsize; /* max size this server will accept */
779 SM_FILE_T *mci_in; /* input side of connection */
780 SM_FILE_T *mci_out; /* output side of connection */
781 pid_t mci_pid; /* process id of subordinate proc */
782 char *mci_phase; /* SMTP phase string */
783 struct mailer *mci_mailer; /* ptr to the mailer for this conn */
784 char *mci_host; /* host name */
785 char *mci_status; /* DSN status to be copied to addrs */
786 char *mci_rstatus; /* SMTP status to be copied to addrs */
787 time_t mci_lastuse; /* last usage time */
788 SM_FILE_T *mci_statfile; /* long term status file */
789 char *mci_heloname; /* name to use as HELO arg */
790 long mci_min_by; /* minimum DELIVERBY */
791 bool mci_retryrcpt; /* tempfail for at least one rcpt */
792 char *mci_tolist; /* list of valid recipients */
793 SM_RPOOL_T *mci_rpool; /* resource pool */
795 int mci_okrcpts; /* number of valid recipients */
796 ADDRESS *mci_nextaddr; /* next address for pipelined status */
799 SASL_AI_T mci_sai; /* authentication info */
800 bool mci_sasl_auth; /* authenticated? */
801 int mci_sasl_string_len;
802 char *mci_sasl_string; /* sasl reply string */
803 char *mci_saslcap; /* SASL list of mechanisms */
804 sasl_conn_t *mci_conn; /* SASL connection */
807 SSL *mci_ssl; /* SSL connection */
810 MACROS_T mci_macro; /* macro definitions */
815 /* XREF: mci.c: MciFlags[]: needs to be kept in sync! */
816 /* 0x00000001 unused, was MCIF_VALID: this entry is valid */
817 #define MCIF_OCC_INCR 0x00000002 /* occ values increased */
818 #define MCIF_CACHED 0x00000004 /* currently in open cache */
819 #define MCIF_ESMTP 0x00000008 /* this host speaks ESMTP */
820 #define MCIF_EXPN 0x00000010 /* EXPN command supported */
821 #define MCIF_SIZE 0x00000020 /* SIZE option supported */
822 #define MCIF_8BITMIME 0x00000040 /* BODY=8BITMIME supported */
823 #define MCIF_7BIT 0x00000080 /* strip this message to 7 bits */
824 /* 0x00000100 unused, was MCIF_MULTSTAT: MAIL11V3: handles MULT status */
825 #define MCIF_INHEADER 0x00000200 /* currently outputing header */
826 #define MCIF_CVT8TO7 0x00000400 /* convert from 8 to 7 bits */
827 #define MCIF_DSN 0x00000800 /* DSN extension supported */
828 #define MCIF_8BITOK 0x00001000 /* OK to send 8 bit characters */
829 #define MCIF_CVT7TO8 0x00002000 /* convert from 7 to 8 bits */
830 #define MCIF_INMIME 0x00004000 /* currently reading MIME header */
831 #define MCIF_AUTH 0x00008000 /* AUTH= supported */
832 #define MCIF_AUTHACT 0x00010000 /* SASL (AUTH) active */
833 #define MCIF_ENHSTAT 0x00020000 /* ENHANCEDSTATUSCODES supported */
834 #define MCIF_PIPELINED 0x00040000 /* PIPELINING supported */
835 #define MCIF_VERB 0x00080000 /* VERB supported */
837 #define MCIF_TLS 0x00100000 /* STARTTLS supported */
838 #define MCIF_TLSACT 0x00200000 /* STARTTLS active */
841 #define MCIF_TLSACT 0
842 #endif /* STARTTLS */
843 #define MCIF_DLVR_BY 0x00400000 /* DELIVERBY */
844 #if _FFR_IGNORE_EXT_ON_HELO
845 # define MCIF_HELO 0x00800000 /* we used HELO: ignore extensions */
847 #define MCIF_INLONGLINE 0x01000000 /* in the middle of a long line */
848 #define MCIF_AUTH2 0x02000000 /* got 2 AUTH lines */
849 #define MCIF_ONLY_EHLO 0x10000000 /* use only EHLO in smtpinit */
850 #if _FFR_HANDLE_HDR_RW_TEMPFAIL
851 /* an error is not sticky (if put{header,body}() etc fail) */
852 # define MCIF_NOTSTICKY 0x20000000
854 # define MCIF_NOTSTICKY 0
857 # define MCIF_EAI 0x40000000 /* SMTPUTF8 supported */
859 # define MCIF_EAI 0x00000000 /* for MCIF_EXTENS */
862 #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)
865 #define MCIS_CLOSED 0 /* no traffic on this connection */
866 #define MCIS_OPENING 1 /* sending initial protocol */
867 #define MCIS_OPEN 2 /* open, initial protocol sent */
868 #define MCIS_MAIL 3 /* MAIL command sent */
869 #define MCIS_RCPT 4 /* RCPT commands being sent */
870 #define MCIS_DATA 5 /* DATA command sent */
871 #define MCIS_QUITING 6 /* running quit protocol */
872 #define MCIS_SSD 7 /* service shutting down */
873 #define MCIS_ERROR 8 /* I/O error on connection */
876 extern void mci_cache __P((MCI *));
877 extern void mci_close __P((MCI *, char *where));
878 extern void mci_dump __P((SM_FILE_T *, MCI *, bool));
879 extern void mci_dump_all __P((SM_FILE_T *, bool));
880 extern void mci_flush __P((bool, MCI *));
881 extern void mci_clr_extensions __P((MCI *));
882 extern MCI *mci_get __P((char *, MAILER *));
883 extern int mci_lock_host __P((MCI *));
884 extern bool mci_match __P((char *, MAILER *));
885 extern int mci_print_persistent __P((char *, char *));
886 extern int mci_purge_persistent __P((char *, char *));
887 extern MCI **mci_scan __P((MCI *));
888 extern void mci_setstat __P((MCI *, int, char *, char *));
889 extern void mci_store_persistent __P((MCI *));
890 extern int mci_traverse_persistent __P((int (*)(char *, char *), char *));
891 extern void mci_unlock_host __P((MCI *));
893 EXTERN int MaxMciCache; /* maximum entries in MCI cache */
894 EXTERN time_t MciCacheTimeout; /* maximum idle time on connections */
895 EXTERN time_t MciInfoTimeout; /* how long 'til we retry down hosts */
899 ** This structure is used internally to store header items.
904 char *h_field; /* the name of the field */
905 char *h_value; /* the value of that field */
906 struct header *h_link; /* the next header */
907 unsigned char h_macro; /* include header if macro defined */
908 unsigned long h_flags; /* status bits, see below */
909 BITMAP256 h_mflags; /* m_flags bits needed */
912 typedef struct header HDR;
915 ** Header information structure.
916 ** Defined in conf.c, this struct declares the header fields
917 ** that have some magic meaning.
922 char *hi_field; /* the name of the field */
923 unsigned long hi_flags; /* status bits, see below */
924 char *hi_ruleset; /* validity check ruleset */
927 extern struct hdrinfo HdrInfo[];
929 /* bits for h_flags and hi_flags */
930 #define H_EOH 0x00000001 /* field terminates header */
931 #define H_RCPT 0x00000002 /* contains recipient addresses */
932 #define H_DEFAULT 0x00000004 /* if another value is found, drop this */
933 #define H_RESENT 0x00000008 /* this address is a "Resent-..." address */
934 #define H_CHECK 0x00000010 /* check h_mflags against m_flags */
935 #define H_ACHECK 0x00000020 /* ditto, but always (not just default) */
936 #define H_FORCE 0x00000040 /* force this field, even if default */
937 #define H_TRACE 0x00000080 /* this field contains trace information */
938 #define H_FROM 0x00000100 /* this is a from-type field */
939 #define H_VALID 0x00000200 /* this field has a validated value */
940 #define H_RECEIPTTO 0x00000400 /* field has return receipt info */
941 #define H_ERRORSTO 0x00000800 /* field has error address info */
942 #define H_CTE 0x00001000 /* field is a content-transfer-encoding */
943 #define H_CTYPE 0x00002000 /* this is a content-type field */
944 #define H_BCC 0x00004000 /* Bcc: header: strip value or delete */
945 #define H_ENCODABLE 0x00008000 /* field can be RFC 1522 encoded */
946 #define H_STRIPCOMM 0x00010000 /* header check: strip comments */
947 #define H_BINDLATE 0x00020000 /* only expand macros at deliver */
948 #define H_USER 0x00040000 /* header came from the user/SMTP */
950 /* bits for chompheader() */
951 #define CHHDR_DEF 0x0001 /* default header */
952 #define CHHDR_CHECK 0x0002 /* call ruleset for header */
953 #define CHHDR_USER 0x0004 /* header from user */
954 #define CHHDR_QUEUE 0x0008 /* header from queue file */
957 extern void addheader __P((char *, char *, int, ENVELOPE *, bool));
958 extern unsigned long chompheader __P((char *, int, HDR **, ENVELOPE *));
959 extern bool commaize __P((HDR *, char *, bool, MCI *, ENVELOPE *, int));
960 extern HDR *copyheader __P((HDR *, SM_RPOOL_T *));
961 extern void eatheader __P((ENVELOPE *, bool, bool));
962 extern char *hvalue __P((char *, HDR *));
963 extern void insheader __P((int, char *, char *, int, ENVELOPE *, bool));
964 extern bool isheader __P((char *));
965 extern bool putfromline __P((MCI *, ENVELOPE *));
966 extern void setupheaders __P((void));
969 ** Performance monitoring
972 #define TIMERS struct sm_timers
976 TIMER ti_overall; /* the whole process */
980 #define PUSHTIMER(l, t) { if (tTd(98, l)) pushtimer(&t); }
981 #define POPTIMER(l, t) { if (tTd(98, l)) poptimer(&t); }
984 ** Envelope structure.
985 ** This structure defines the message itself. There is usually
986 ** only one of these -- for the message that we originally read
987 ** and which is our primary interest -- but other envelopes can
988 ** be generated during processing. For example, error messages
989 ** will have their own envelope.
994 HDR *e_header; /* head of header list */
995 long e_msgpriority; /* adjusted priority of this message */
996 time_t e_ctime; /* time message appeared in the queue */
997 char *e_to; /* (list of) target person(s) */
998 ADDRESS e_from; /* the person it is from */
999 char *e_sender; /* e_from.q_paddr w comments stripped */
1000 char **e_fromdomain; /* the domain part of the sender */
1002 bool e_smtputf8; /* whether the sender demanded SMTPUTF8 */
1004 ADDRESS *e_sendqueue; /* list of message recipients */
1005 ADDRESS *e_errorqueue; /* the queue for error responses */
1008 ** Overflow detection is based on < 0, so don't change this
1009 ** to unsigned. We don't use unsigned and == ULONG_MAX because
1010 ** some libc's don't have strtoul(), see mail_esmtp_args().
1013 long e_msgsize; /* size of the message in bytes */
1014 char *e_msgid; /* message id (for logging) */
1015 unsigned long e_flags; /* flags, see below */
1016 int e_nrcpts; /* number of recipients */
1017 short e_class; /* msg class (priority, junk, etc.) */
1018 short e_hopcount; /* number of times processed */
1019 short e_nsent; /* number of sends since checkpoint */
1020 short e_sendmode; /* message send mode */
1021 short e_errormode; /* error return mode */
1022 short e_timeoutclass; /* message timeout class */
1023 bool (*e_puthdr)__P((MCI *, HDR *, ENVELOPE *, int));
1024 /* function to put header of message */
1025 bool (*e_putbody)__P((MCI *, ENVELOPE *, char *));
1026 /* function to put body of message */
1027 ENVELOPE *e_parent; /* the message this one encloses */
1028 ENVELOPE *e_sibling; /* the next envelope of interest */
1029 char *e_bodytype; /* type of message body */
1030 SM_FILE_T *e_dfp; /* data file */
1031 char *e_id; /* code for this entry in queue */
1033 char *e_sessid; /* session ID for this envelope */
1035 int e_qgrp; /* queue group (index into queues) */
1036 int e_qdir; /* index into queue directories */
1037 int e_dfqgrp; /* data file queue group index */
1038 int e_dfqdir; /* data file queue directory index */
1039 int e_xfqgrp; /* queue group (index into queues) */
1040 int e_xfqdir; /* index into queue directories (xf) */
1041 SM_FILE_T *e_xfp; /* transcript file */
1042 SM_FILE_T *e_lockfp; /* the lock file for this message */
1043 char *e_message; /* error message; readonly; NULL,
1044 * or allocated from e_rpool */
1045 char *e_statmsg; /* stat msg (changes per delivery).
1046 * readonly. NULL or allocated from
1048 char *e_quarmsg; /* why envelope is quarantined */
1049 char e_qfletter; /* queue file letter on disk */
1050 char *e_msgboundary; /* MIME-style message part boundary */
1051 char *e_origrcpt; /* original recipient (one only) */
1052 char *e_envid; /* envelope id from MAIL FROM: line */
1053 char *e_status; /* DSN status for this message */
1054 time_t e_dtime; /* time of last delivery attempt */
1055 int e_ntries; /* number of delivery attempts */
1056 dev_t e_dfdev; /* data file device (crash recovery) */
1057 ino_t e_dfino; /* data file inode (crash recovery) */
1058 MACROS_T e_macro; /* macro definitions */
1059 MCI *e_mci; /* connection info */
1060 char *e_auth_param; /* readonly; NULL or static storage or
1061 * allocated from e_rpool */
1062 TIMERS e_timers; /* per job timers */
1063 long e_deliver_by; /* deliver by */
1064 int e_dlvr_flag; /* deliver by flag */
1065 SM_RPOOL_T *e_rpool; /* resource pool for this envelope */
1066 unsigned int e_features; /* server features */
1067 #define ENHSC_LEN 11
1068 #if _FFR_MILTER_ENHSC
1069 char e_enhsc[ENHSC_LEN]; /* enhanced status code */
1071 /* smtp error codes during delivery */
1072 int e_rcode; /* reply code */
1073 char e_renhsc[ENHSC_LEN]; /* enhanced status code */
1074 char *e_text; /* reply text */
1077 #define PRT_NONNEGL(v) ((v) < 0 ? LONG_MAX : (v))
1079 /* values for e_flags */
1080 #define EF_OLDSTYLE 0x00000001L /* use spaces (not commas) in hdrs */
1081 #define EF_INQUEUE 0x00000002L /* this message is fully queued */
1082 #define EF_NO_BODY_RETN 0x00000004L /* omit message body on error */
1083 #define EF_CLRQUEUE 0x00000008L /* disk copy is no longer needed */
1084 #define EF_SENDRECEIPT 0x00000010L /* send a return receipt */
1085 #define EF_FATALERRS 0x00000020L /* fatal errors occurred */
1086 #define EF_DELETE_BCC 0x00000040L /* delete Bcc: headers entirely */
1087 #define EF_RESPONSE 0x00000080L /* this is an error or return receipt */
1088 #define EF_RESENT 0x00000100L /* this message is being forwarded */
1089 #define EF_VRFYONLY 0x00000200L /* verify only (don't expand aliases) */
1090 #define EF_WARNING 0x00000400L /* warning message has been sent */
1091 #define EF_QUEUERUN 0x00000800L /* this envelope is from queue */
1092 #define EF_GLOBALERRS 0x00001000L /* treat errors as global */
1093 #define EF_PM_NOTIFY 0x00002000L /* send return mail to postmaster */
1094 #define EF_METOO 0x00004000L /* send to me too */
1095 #define EF_LOGSENDER 0x00008000L /* need to log the sender */
1096 #define EF_NORECEIPT 0x00010000L /* suppress all return-receipts */
1097 #define EF_HAS8BIT 0x00020000L /* at least one 8-bit char in body */
1098 /* was: EF_NL_NOT_EOL 0x00040000L * don't accept raw NL as EOLine */
1099 /* was: EF_CRLF_NOT_EOL 0x00080000L * don't accept CR-LF as EOLine */
1100 #define EF_RET_PARAM 0x00100000L /* RCPT command had RET argument */
1101 #define EF_HAS_DF 0x00200000L /* set when data file is instantiated */
1102 #define EF_IS_MIME 0x00400000L /* really is a MIME message */
1103 #define EF_DONT_MIME 0x00800000L /* never MIME this message */
1104 #define EF_DISCARD 0x01000000L /* discard the message */
1105 #define EF_TOOBIG 0x02000000L /* message is too big */
1106 #define EF_SPLIT 0x04000000L /* envelope has been split */
1107 #define EF_UNSAFE 0x08000000L /* unsafe: read from untrusted source */
1108 #define EF_TOODEEP 0x10000000L /* message is nested too deep */
1109 #define EF_SECURE 0x20000000L /* DNSSEC for currently parsed addr */
1111 #define DLVR_NOTIFY 0x01
1112 #define DLVR_RETURN 0x02
1113 #define DLVR_TRACE 0x10
1114 #define IS_DLVR_NOTIFY(e) (((e)->e_dlvr_flag & DLVR_NOTIFY) != 0)
1115 #define IS_DLVR_RETURN(e) (((e)->e_dlvr_flag & DLVR_RETURN) != 0)
1116 #define IS_DLVR_TRACE(e) (((e)->e_dlvr_flag & DLVR_TRACE) != 0)
1117 #define IS_DLVR_BY(e) ((e)->e_dlvr_flag != 0)
1119 #define BODYTYPE_NONE (0)
1120 #define BODYTYPE_7BIT (1)
1121 #define BODYTYPE_8BITMIME (2)
1122 #define BODYTYPE_ILLEGAL (-1)
1123 #define BODYTYPE_VALID(b) ((b) == BODYTYPE_7BIT || (b) == BODYTYPE_8BITMIME)
1125 extern ENVELOPE BlankEnvelope;
1128 extern void clearenvelope __P((ENVELOPE *, bool, SM_RPOOL_T *));
1129 extern int dropenvelope __P((ENVELOPE *, bool, bool));
1130 extern ENVELOPE *newenvelope __P((ENVELOPE *, ENVELOPE *, SM_RPOOL_T *));
1131 extern void clrsessenvelope __P((ENVELOPE *));
1132 extern void printenvflags __P((ENVELOPE *));
1133 extern bool putbody __P((MCI *, ENVELOPE *, char *));
1134 extern bool putheader __P((MCI *, HDR *, ENVELOPE *, int));
1137 ** Message priority classes.
1139 ** The message class is read directly from the Priority: header
1140 ** field in the message.
1142 ** CurEnv->e_msgpriority is the number of bytes in the message plus
1143 ** the creation time (so that jobs ``tend'' to be ordered correctly),
1144 ** adjusted by the message class, the number of recipients, and the
1145 ** amount of time the message has been sitting around. This number
1146 ** is used to order the queue. Higher values mean LOWER priority.
1148 ** Each priority class point is worth WkClassFact priority points;
1149 ** each recipient is worth WkRecipFact priority points. Each time
1150 ** we reprocess a message the priority is adjusted by WkTimeFact.
1151 ** WkTimeFact should normally decrease the priority so that jobs
1152 ** that have historically failed will be run later; thanks go to
1153 ** Jay Lepreau at Utah for pointing out the error in my thinking.
1155 ** The "class" is this number, unadjusted by the age or size of
1156 ** this message. Classes with negative representations will have
1157 ** error messages thrown away if they are not local.
1162 char *pri_name; /* external name of priority */
1163 int pri_val; /* internal value for same */
1166 EXTERN int NumPriorities; /* pointer into Priorities */
1167 EXTERN struct priority Priorities[MAXPRIORITIES];
1175 char **r_lhs; /* pattern match */
1176 char **r_rhs; /* substitution value */
1177 struct rewrite *r_next;/* next in chain */
1178 int r_line; /* rule line in sendmail.cf */
1182 ** Special characters in rewriting rules.
1183 ** These are used internally only.
1184 ** The COND* rules are actually used in macros rather than in
1185 ** rewriting rules, but are given here because they
1189 /* "out of band" indicator */
1190 /* sm/sendmail.h #define METAQUOTE ((unsigned char)0377) quotes the next octet */
1192 /* left hand side items */
1193 #define MATCHZANY ((unsigned char)0220) /* match zero or more tokens */
1194 #define MATCHANY ((unsigned char)0221) /* match one or more tokens */
1195 #define MATCHONE ((unsigned char)0222) /* match exactly one token */
1196 #define MATCHCLASS ((unsigned char)0223) /* match one token in a class */
1197 #define MATCHNCLASS ((unsigned char)0224) /* match tokens not in class */
1199 /* right hand side items */
1200 #define MATCHREPL ((unsigned char)0225) /* RHS replacement for above */
1201 #define CANONNET ((unsigned char)0226) /* canonical net, next token */
1202 #define CANONHOST ((unsigned char)0227) /* canonical host, next token */
1203 #define CANONUSER ((unsigned char)0230) /* canonical user, next N tokens */
1204 #define CALLSUBR ((unsigned char)0231) /* call another rewriting set */
1206 /* conditionals in macros (anywhere) */
1207 #define CONDIF ((unsigned char)0232) /* conditional if-then */
1208 #define CONDELSE ((unsigned char)0233) /* conditional else */
1209 #define CONDFI ((unsigned char)0234) /* conditional fi */
1211 /* bracket characters for RHS host name lookup */
1212 #define HOSTBEGIN ((unsigned char)0235) /* hostname lookup begin */
1213 #define HOSTEND ((unsigned char)0236) /* hostname lookup end */
1215 /* bracket characters for RHS generalized lookup */
1216 #define LOOKUPBEGIN ((unsigned char)0205) /* generalized lookup begin */
1217 #define LOOKUPEND ((unsigned char)0206) /* generalized lookup end */
1219 /* macro substitution characters (anywhere) */
1220 #define MACROEXPAND ((unsigned char)0201) /* macro expansion */
1221 #define MACRODEXPAND ((unsigned char)0202) /* deferred macro expansion */
1223 /* to make the code clearer */
1224 #define MATCHZERO CANONHOST
1226 #define MAXMATCH 9 /* max params per rewrite */
1227 #define MAX_MAP_ARGS 10 /* max arguments for map */
1229 /* external <==> internal mapping table */
1232 char metaname; /* external code (after $) */
1233 unsigned char metaval; /* internal code (as above) */
1236 /* values for macros with external names only */
1237 #define MID_OPMODE 0202 /* operation mode */
1242 macdefine_tagged __P((
1250 # define macdefine(mac,c,id,v) \
1251 macdefine_tagged(mac,c,id,v,__FILE__,__LINE__,sm_heap_group())
1252 #else /* SM_HEAP_CHECK */
1259 # define macdefine_tagged(mac,c,id,v,file,line,grp) macdefine(mac,c,id,v)
1260 #endif /* SM_HEAP_CHECK */
1261 extern void macset __P((MACROS_T *, int, char *));
1262 #define macget(mac, i) (mac)->mac_table[i]
1263 extern void expand __P((char *, char *, size_t, ENVELOPE *));
1264 extern int macid_parse __P((char *, char **));
1265 #define macid(name) macid_parse(name, NULL)
1266 extern char *macname __P((int));
1267 extern char *macvalue __P((int, ENVELOPE *));
1268 extern void mactabclear __P((MACROS_T *));
1269 extern int rscheck __P((char *, const char *, const char *, ENVELOPE *, int, int, const char *, const char *, ADDRESS *, char **));
1270 extern int rscap __P((char *, char *, char *, ENVELOPE *, char ***, char *, int));
1271 extern void setclass __P((int, char *));
1272 extern int strtorwset __P((char *, char **, int));
1273 extern char *translate_dollars __P((char *, char *, int *));
1274 extern bool wordinclass __P((char *, int));
1277 ** Name canonification short circuit.
1279 ** If the name server for a host is down, the process of trying to
1280 ** canonify the name can hang. This is similar to (but alas, not
1281 ** identical to) looking up the name for delivery. This stab type
1282 ** caches the result of the name server lookup so we don't hang
1286 #define NAMECANON struct _namecanon
1290 short nc_errno; /* cached errno */
1291 short nc_herrno; /* cached h_errno */
1292 short nc_stat; /* cached exit status code */
1293 short nc_flags; /* flag bits */
1294 char *nc_cname; /* the canonical name */
1295 time_t nc_exp; /* entry expires at */
1298 /* values for nc_flags */
1299 #define NCF_VALID 0x0001 /* entry valid */
1300 #define NCF_VALID 0x0001 /* entry valid */
1301 #define NCF_SECURE 0x0002 /* entry secure (DNSSEC) */
1303 /* hostsignature structure */
1307 char *hs_sig; /* hostsignature */
1308 time_t hs_exp; /* entry expires at */
1311 typedef struct hostsig_t HOSTSIG_T;
1314 ** The standard udp packet size PACKETSZ (512) is not sufficient for some
1315 ** nameserver answers containing very many resource records. The resolver
1316 ** may switch to tcp and retry if it detects udp packet overflow.
1317 ** Also note that the resolver routines res_query and res_search return
1318 ** the size of the *un*truncated answer in case the supplied answer buffer
1319 ** it not big enough to accommodate the entire answer.
1323 # define MAXPACKET 8192 /* max packet size used internally by BIND */
1327 ** The resolver functions res_{send,query,querydomain} expect the
1328 ** answer buffer to be aligned, but some versions of gcc4 reverse
1329 ** 25 years of history and no longer align char buffers on the
1330 ** stack, resulting in crashes on strict-alignment platforms. Use
1331 ** this union when putting the buffer on the stack to force the
1332 ** alignment, then cast to (HEADER *) or (unsigned char *) as needed.
1337 unsigned char qb2[MAXPACKET];
1341 /* result values for getcanonname() etc */
1342 #define HOST_NOTFOUND 0
1344 #define HOST_SECURE 2
1346 /* flags for getmxrr() */
1347 #define DROPLOCALHOST 0x01
1348 #define TRYFALLBACK 0x02
1351 /* RFC7505: Null MX */
1355 extern int getcanonname __P((char *, int, bool, int *));
1356 extern int getmxrr __P((char *, char **, unsigned short *, unsigned int, int *, int *, int));
1357 extern char *hostsignature __P((MAILER *, char *, bool));
1358 extern int getfallbackmxrr __P((char *));
1361 ** Mapping functions
1363 ** These allow arbitrary mappings in the config file. The idea
1364 ** (albeit not the implementation) comes from IDA sendmail.
1367 #define MAPCLASS struct _mapclass
1368 #define MAP struct _map
1369 #define MAXMAPACTIONS 5 /* size of map_actions array */
1378 MAPCLASS *map_class; /* the class of this map */
1379 MAPCLASS *map_orgclass; /* the original class of this map */
1380 char *map_mname; /* name of this map */
1381 long map_mflags; /* flags, see below */
1382 char *map_file; /* the (nominal) filename */
1383 ARBPTR_T map_db1; /* the open database ptr */
1384 ARBPTR_T map_db2; /* an "extra" database pointer */
1385 char *map_keycolnm; /* key column name */
1386 char *map_valcolnm; /* value column name */
1387 unsigned char map_keycolno; /* key column number */
1388 unsigned char map_valcolno; /* value column number */
1389 char map_coldelim; /* column delimiter */
1390 char map_spacesub; /* spacesub */
1391 char *map_app; /* to append to successful matches */
1392 char *map_tapp; /* to append to "tempfail" matches */
1393 char *map_domain; /* the (nominal) NIS domain */
1394 char *map_rebuild; /* program to run to do auto-rebuild */
1395 time_t map_mtime; /* last database modification time */
1396 time_t map_timeout; /* timeout for map accesses */
1397 int map_retry; /* # of retries for map accesses */
1398 pid_t map_pid; /* PID of process which opened map */
1399 int map_lockfd; /* auxiliary lock file descriptor */
1400 MAP *map_stack[MAXMAPSTACK]; /* list for stacked maps */
1401 short map_return[MAXMAPACTIONS]; /* return bitmaps for stacked maps */
1405 /* bit values for map_mflags */
1406 #define MF_VALID 0x00000001 /* this entry is valid */
1407 #define MF_INCLNULL 0x00000002 /* include null byte in key */
1408 #define MF_OPTIONAL 0x00000004 /* don't complain if map not found */
1409 #define MF_NOFOLDCASE 0x00000008 /* don't fold case in keys */
1410 #define MF_MATCHONLY 0x00000010 /* don't use the map value */
1411 #define MF_OPEN 0x00000020 /* this entry is open */
1412 #define MF_WRITABLE 0x00000040 /* open for writing */
1413 #define MF_ALIAS 0x00000080 /* this is an alias file */
1414 #define MF_TRY0NULL 0x00000100 /* try with no null byte */
1415 #define MF_TRY1NULL 0x00000200 /* try with the null byte */
1416 #define MF_LOCKED 0x00000400 /* this map is currently locked */
1417 #define MF_ALIASWAIT 0x00000800 /* alias map in aliaswait state */
1418 #define MF_IMPL_HASH 0x00001000 /* implicit: underlying hash database */
1419 #define MF_IMPL_NDBM 0x00002000 /* implicit: underlying NDBM database */
1420 #define MF_IMPL_CDB 0x00004000 /* implicit: underlying CDB database */
1421 #define MF_APPEND 0x00008000 /* append new entry on rebuild */
1422 #define MF_KEEPQUOTES 0x00010000 /* don't dequote key before lookup */
1423 #define MF_NODEFER 0x00020000 /* don't defer if map lookup fails */
1424 #define MF_REGEX_NOT 0x00040000 /* regular expression negation */
1425 #define MF_DEFER 0x00080000 /* don't lookup map in defer mode */
1426 #define MF_SINGLEMATCH 0x00100000 /* successful only if match one key */
1427 #define MF_SINGLEDN 0x00200000 /* only one match, but multi values */
1428 #define MF_FILECLASS 0x00400000 /* this is a file class map */
1429 #define MF_OPENBOGUS 0x00800000 /* open failed, don't call map_close */
1430 #define MF_CLOSING 0x01000000 /* map is being closed */
1431 #define MF_SECURE 0x02000000 /* DNSSEC result is "secure" */
1433 #define DYNOPENMAP(map) \
1436 if (!bitset(MF_OPEN, (map)->map_mflags)) \
1438 if (!openmap(map)) \
1444 /* indices for map_actions */
1445 #define MA_NOTFOUND 0 /* member map returned "not found" */
1446 #define MA_UNAVAIL 1 /* member map is not available */
1447 #define MA_TRYAGAIN 2 /* member map returns temp failure */
1450 ** The class of a map -- essentially the functions to call
1455 char *map_cname; /* name of this map class */
1456 char *map_ext; /* extension for database file */
1457 short map_cflags; /* flag bits, see below */
1458 bool (*map_parse)__P((MAP *, char *));
1459 /* argument parsing function */
1460 char *(*map_lookup)__P((MAP *, char *, char **, int *));
1461 /* lookup function */
1462 void (*map_store)__P((MAP *, char *, char *));
1463 /* store function */
1464 bool (*map_open)__P((MAP *, int));
1466 void (*map_close)__P((MAP *));
1467 /* close function */
1470 /* bit values for map_cflags */
1471 #define MCF_ALIASOK 0x0001 /* can be used for aliases */
1472 /* #define MCF_ALIASONLY 0x0002 * usable only for aliases */
1473 #define MCF_REBUILDABLE 0x0004 /* can rebuild alias files */
1474 #define MCF_OPTFILE 0x0008 /* file name is optional */
1475 #define MCF_NOTPERSIST 0x0010 /* don't keep map open all the time */
1478 extern void closemaps __P((bool));
1479 extern bool impl_map_open __P((MAP *, int));
1480 extern void initmaps __P((void));
1481 extern MAP *makemapentry __P((char *));
1482 extern void maplocaluser __P((ADDRESS *, ADDRESS **, int, ENVELOPE *));
1483 extern char *map_rewrite __P((MAP *, const char *, size_t, char **));
1485 extern char *ni_propval __P((char *, char *, char *, char *, int));
1487 extern bool openmap __P((MAP *));
1488 extern int udbexpand __P((ADDRESS *, ADDRESS **, int, ENVELOPE *));
1490 extern void _udbx_close __P((void));
1491 extern char *udbsender __P((char *, SM_RPOOL_T *));
1495 ** LDAP related items
1498 /* struct defining LDAP Auth Methods */
1501 char *lam_name; /* name of LDAP auth method */
1502 int lam_code; /* numeric code */
1505 /* struct defining LDAP Alias Dereferencing */
1508 char *lad_name; /* name of LDAP alias dereferencing method */
1509 int lad_code; /* numeric code */
1512 /* struct defining LDAP Search Scope */
1515 char *lss_name; /* name of LDAP search scope */
1516 int lss_code; /* numeric code */
1520 extern bool ldapmap_parseargs __P((MAP *, char *));
1521 extern void ldapmap_set_defaults __P((char *));
1522 #endif /* LDAPMAP */
1530 # include <phclient.h>
1532 struct ph_map_struct
1534 char *ph_servers; /* list of ph servers */
1535 char *ph_field_list; /* list of fields to search for match */
1536 PH *ph; /* PH server handle */
1537 int ph_fastclose; /* send "quit" command on close */
1538 time_t ph_timeout; /* timeout interval */
1540 typedef struct ph_map_struct PH_MAP_STRUCT;
1545 ** Regular UNIX sockaddrs are too small to handle ISO addresses, so
1546 ** we are forced to declare a supertype here.
1549 #if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25
1552 struct sockaddr sa; /* general version */
1554 struct sockaddr_un sunix; /* UNIX family */
1557 struct sockaddr_in sin; /* INET family */
1560 struct sockaddr_in6 sin6; /* INET/IPv6 */
1563 struct sockaddr_iso siso; /* ISO family */
1566 struct sockaddr_ns sns; /* XNS family */
1569 struct sockaddr_x25 sx25; /* X.25 family */
1573 # define SOCKADDR union bigsockaddr
1576 extern char *anynet_ntoa __P((SOCKADDR *));
1578 extern char *anynet_ntop __P((struct in6_addr *, char *, size_t));
1579 extern int anynet_pton __P((int, const char *, void *));
1581 extern char *hostnamebyanyaddr __P((SOCKADDR *));
1582 extern char *validate_connection __P((SOCKADDR *, char *, ENVELOPE *));
1584 extern bool iptostring __P((SOCKADDR *, SOCKADDR_LEN_T, char *, unsigned));
1587 #endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */
1590 ** Process List (proclist)
1593 #define NO_PID ((pid_t) 0)
1594 #ifndef PROC_LIST_SEG
1595 # define PROC_LIST_SEG 32 /* number of pids to alloc at a time */
1600 #define PROC_DAEMON 1
1601 #define PROC_DAEMON_CHILD 2
1602 #define PROC_QUEUE 3
1603 #define PROC_QUEUE_CHILD 3
1604 #define PROC_CONTROL 4
1605 #define PROC_CONTROL_CHILD 5
1608 extern void proc_list_add __P((pid_t, char *, int, int, int, SOCKADDR *));
1609 extern void proc_list_clear __P((void));
1610 extern void proc_list_display __P((SM_FILE_T *, char *));
1611 extern void proc_list_drop __P((pid_t, int, int *));
1612 extern void proc_list_probe __P((void));
1613 extern void proc_list_set __P((pid_t, char *));
1614 extern void proc_list_signal __P((int, int));
1617 ** Symbol table definitions
1622 char *s_name; /* name to be entered */
1623 short s_symtype; /* general type (see below) */
1624 struct symtab *s_next; /* pointer to next in chain */
1627 BITMAP256 sv_class; /* bit-map of word classes */
1628 MAILER *sv_mailer; /* pointer to mailer */
1629 char *sv_alias; /* alias */
1630 MAPCLASS sv_mapclass; /* mapping function class */
1631 MAP sv_map; /* mapping function */
1632 HOSTSIG_T sv_hostsig; /* host signature */
1633 MCI sv_mci; /* mailer connection info */
1634 NAMECANON sv_namecanon; /* canonical name cache */
1635 int sv_macro; /* macro name => id mapping */
1636 int sv_ruleset; /* ruleset index */
1637 struct hdrinfo sv_header; /* header metainfo */
1638 char *sv_service[MAXMAPSTACK]; /* service switch */
1640 MAP *sv_lmap; /* Maps for LDAP connection */
1643 MAP *sv_socketmap; /* Maps for SOCKET connection */
1646 struct milter *sv_milter; /* milter filter name */
1648 QUEUEGRP *sv_queue; /* pointer to queue */
1650 dane_tlsa_P sv_tlsa; /* pointer to TLSA RRs */
1655 typedef struct symtab STAB;
1658 #define ST_UNDEF 0 /* undefined type */
1659 #define ST_CLASS 1 /* class map */
1660 /* #define ST_unused 2 UNUSED */
1661 #define ST_MAILER 3 /* a mailer header */
1662 #define ST_ALIAS 4 /* an alias */
1663 #define ST_MAPCLASS 5 /* mapping function class */
1664 #define ST_MAP 6 /* mapping function */
1665 #define ST_HOSTSIG 7 /* host signature */
1666 #define ST_NAMECANON 8 /* cached canonical name */
1667 #define ST_MACRO 9 /* macro name to id mapping */
1668 #define ST_RULESET 10 /* ruleset index */
1669 #define ST_SERVICE 11 /* service switch entry */
1670 #define ST_HEADER 12 /* special header flags */
1672 # define ST_LMAP 13 /* List head of maps for LDAP connection */
1675 # define ST_MILTER 14 /* milter filter */
1677 #define ST_QUEUE 15 /* a queue entry */
1680 # define ST_SOCKETMAP 16 /* List head of maps for SOCKET connection */
1684 # define ST_TLSA_RR 17 /* cached TLSA RRs */
1687 /* This entry must be last */
1688 #define ST_MCI 18 /* mailer connection info (offset) */
1690 #define s_class s_value.sv_class
1691 #define s_mailer s_value.sv_mailer
1692 #define s_alias s_value.sv_alias
1693 #define s_mci s_value.sv_mci
1694 #define s_mapclass s_value.sv_mapclass
1695 #define s_hostsig s_value.sv_hostsig
1696 #define s_map s_value.sv_map
1697 #define s_namecanon s_value.sv_namecanon
1698 #define s_macro s_value.sv_macro
1699 #define s_ruleset s_value.sv_ruleset
1700 #define s_service s_value.sv_service
1701 #define s_header s_value.sv_header
1703 # define s_lmap s_value.sv_lmap
1706 # define s_socketmap s_value.sv_socketmap
1709 # define s_milter s_value.sv_milter
1711 #define s_quegrp s_value.sv_queue
1713 # define s_tlsa s_value.sv_tlsa
1716 /* opcodes to stab */
1717 #define ST_FIND 0 /* find entry */
1718 #define ST_ENTER 1 /* enter if not there */
1721 extern STAB *stab __P((char *, int, int));
1722 extern void stabapply __P((void (*)(STAB *, int), int));
1725 ** Operation, send, error, and MIME modes
1727 ** The operation mode describes the basic operation of sendmail.
1728 ** This can be set from the command line, and is "send mail" by
1731 ** The send mode tells how to send mail. It can be set in the
1732 ** configuration file. Its setting determines how quickly the
1733 ** mail will be delivered versus the load on your system. If the
1734 ** -v (verbose) flag is given, it will be forced to SM_DELIVER
1737 ** The error mode tells how to return errors.
1740 #define MD_DELIVER 'm' /* be a mail sender */
1741 #define MD_SMTP 's' /* run SMTP on standard input */
1742 #define MD_ARPAFTP 'a' /* obsolete ARPANET mode (Grey Book) */
1743 #define MD_DAEMON 'd' /* run as a daemon */
1744 #define MD_FGDAEMON 'D' /* run daemon in foreground */
1745 #define MD_LOCAL 'l' /* like daemon, but localhost only */
1746 #define MD_VERIFY 'v' /* verify: don't collect or deliver */
1747 #define MD_TEST 't' /* test mode: resolve addrs only */
1748 #define MD_INITALIAS 'i' /* initialize alias database */
1749 #define MD_PRINT 'p' /* print the queue */
1750 #define MD_PRINTNQE 'P' /* print number of entries in queue */
1751 #define MD_FREEZE 'z' /* freeze the configuration file */
1752 #define MD_HOSTSTAT 'h' /* print persistent host stat info */
1753 #define MD_PURGESTAT 'H' /* purge persistent host stat info */
1754 #define MD_QUEUERUN 'q' /* queue run */
1755 #define MD_CHECKCONFIG 'C' /* check configuration file */
1757 #if _FFR_LOCAL_DAEMON
1758 EXTERN bool LocalDaemon;
1760 EXTERN bool V6LoopbackAddrFound; /* found an IPv6 loopback address */
1761 # define SETV6LOOPBACKADDRFOUND(sa) \
1764 if (isloopback(sa)) \
1765 V6LoopbackAddrFound = true; \
1767 # endif /* NETINET6 */
1768 #else /* _FFR_LOCAL_DAEMON */
1769 # define LocalDaemon false
1770 # define V6LoopbackAddrFound false
1771 # define SETV6LOOPBACKADDRFOUND(sa)
1772 #endif /* _FFR_LOCAL_DAEMON */
1774 /* Note: see also include/sendmail/pathnames.h: GET_CLIENT_CF */
1776 /* values for e_sendmode -- send modes */
1777 #define SM_DELIVER 'i' /* interactive delivery */
1779 #define SM_PROXY_REQ 's' /* synchronous mode requested */
1780 #define SM_PROXY 'S' /* synchronous mode activated */
1782 #define SM_FORK 'b' /* deliver in background */
1784 #define SM_DM_ONE 'o' /* deliver first TA in background, then queue */
1786 #define SM_QUEUE 'q' /* queue, don't deliver */
1787 #define SM_DEFER 'd' /* defer map lookups as well as queue */
1788 #define SM_VERIFY 'v' /* verify only (used internally) */
1789 #define DM_NOTSET (-1) /* DeliveryMode (per daemon) option not set */
1791 # define SM_IS_INTERACTIVE(m) ((m) == SM_DELIVER || (m) == SM_PROXY_REQ || (m) == SM_PROXY)
1793 # define SM_IS_INTERACTIVE(m) ((m) == SM_DELIVER)
1796 #define WILL_BE_QUEUED(m) ((m) == SM_QUEUE || (m) == SM_DEFER)
1798 /* used only as a parameter to sendall */
1799 #define SM_DEFAULT '\0' /* unspecified, use SendMode */
1802 extern void set_delivery_mode __P((int, ENVELOPE *));
1804 /* values for e_errormode -- error handling modes */
1805 #define EM_PRINT 'p' /* print errors */
1806 #define EM_MAIL 'm' /* mail back errors */
1807 #define EM_WRITE 'w' /* write back errors */
1808 #define EM_BERKNET 'e' /* special berknet processing */
1809 #define EM_QUIET 'q' /* don't print messages (stat only) */
1812 /* bit values for MimeMode */
1813 #define MM_CVTMIME 0x0001 /* convert 8 to 7 bit MIME */
1814 #define MM_PASS8BIT 0x0002 /* just send 8 bit data blind */
1815 #define MM_MIME8BIT 0x0004 /* convert 8-bit data to MIME */
1818 /* how to handle messages without any recipient addresses */
1819 #define NRA_NO_ACTION 0 /* just leave it as is */
1820 #define NRA_ADD_TO 1 /* add To: header */
1821 #define NRA_ADD_APPARENTLY_TO 2 /* add Apparently-To: header */
1822 #define NRA_ADD_BCC 3 /* add empty Bcc: header */
1823 #define NRA_ADD_TO_UNDISCLOSED 4 /* add To: undisclosed:; header */
1826 /* flags to putxline */
1827 #define PXLF_NOTHINGSPECIAL 0 /* no special mapping */
1828 #define PXLF_MAPFROM 0x0001 /* map From_ to >From_ */
1829 #define PXLF_STRIP8BIT 0x0002 /* strip 8th bit */
1830 #define PXLF_HEADER 0x0004 /* map newlines in headers */
1831 #define PXLF_NOADDEOL 0x0008 /* if EOL not present, don't add one */
1832 #define PXLF_STRIPMQUOTE 0x0010 /* strip METAQUOTEs */
1836 ** These are bit values for the PrivacyFlags word.
1839 #define PRIV_PUBLIC 0 /* what have I got to hide? */
1840 #define PRIV_NEEDMAILHELO 0x00000001 /* insist on HELO for MAIL */
1841 #define PRIV_NEEDEXPNHELO 0x00000002 /* insist on HELO for EXPN */
1842 #define PRIV_NEEDVRFYHELO 0x00000004 /* insist on HELO for VRFY */
1843 #define PRIV_NOEXPN 0x00000008 /* disallow EXPN command */
1844 #define PRIV_NOVRFY 0x00000010 /* disallow VRFY command */
1845 #define PRIV_AUTHWARNINGS 0x00000020 /* flag possible auth probs */
1846 #define PRIV_NOVERB 0x00000040 /* disallow VERB command */
1847 #define PRIV_RESTRICTMAILQ 0x00010000 /* restrict mailq command */
1848 #define PRIV_RESTRICTQRUN 0x00020000 /* restrict queue run */
1849 #define PRIV_RESTRICTEXPAND 0x00040000 /* restrict alias/forward expansion */
1850 #define PRIV_NOETRN 0x00080000 /* disallow ETRN command */
1851 #define PRIV_NOBODYRETN 0x00100000 /* do not return bodies on bounces */
1852 #define PRIV_NORECEIPTS 0x00200000 /* disallow return receipts */
1853 #define PRIV_NOACTUALRECIPIENT 0x00400000 /* no X-Actual-Recipient in DSNs */
1855 /* don't give no info, anyway, anyhow (in the main SMTP transaction) */
1856 #define PRIV_GOAWAY 0x0000ffff
1858 /* struct defining such things */
1861 char *pv_name; /* name of privacy flag */
1862 unsigned long pv_flag; /* numeric level */
1865 EXTERN unsigned long PrivacyFlags; /* privacy flags */
1869 ** Flags passed to remotename, parseaddr, allocaddr, and buildaddr.
1872 #define RF_SENDERADDR 0x001 /* this is a sender address */
1873 #define RF_HEADERADDR 0x002 /* this is a header address */
1874 #define RF_CANONICAL 0x004 /* strip comment information */
1875 #define RF_ADDDOMAIN 0x008 /* OK to do domain extension */
1876 #define RF_COPYPARSE 0x010 /* copy parsed user & host */
1877 #define RF_COPYPADDR 0x020 /* copy print address */
1878 #define RF_COPYALL (RF_COPYPARSE|RF_COPYPADDR)
1879 #define RF_COPYNONE 0
1880 #define RF_RM_ADDR 0x040 /* address to be removed */
1883 ** Flags passed to rscheck
1886 #define RSF_RMCOMM 0x0001 /* strip comments */
1887 #define RSF_UNSTRUCTURED 0x0002 /* unstructured, ignore syntax errors */
1888 #define RSF_COUNT 0x0004 /* count rejections (statistics)? */
1889 #define RSF_ADDR 0x0008 /* reassemble address */
1890 #define RSF_STRING 0x0010 /* reassemble address as string */
1893 ** Flags passed to mime8to7 and putheader.
1896 #define M87F_OUTER 0 /* outer context */
1897 #define M87F_NO8BIT 0x0001 /* can't have 8-bit in this section */
1898 #define M87F_DIGEST 0x0002 /* processing multipart/digest */
1899 #define M87F_NO8TO7 0x0004 /* don't do 8->7 bit conversions */
1902 extern bool mime7to8 __P((MCI *, HDR *, ENVELOPE *));
1903 extern int mime8to7 __P((MCI *, HDR *, ENVELOPE *, char **, int, int));
1906 ** Flags passed to returntosender.
1909 #define RTSF_NO_BODY 0 /* send headers only */
1910 #define RTSF_SEND_BODY 0x0001 /* include body of message in return */
1911 #define RTSF_PM_BOUNCE 0x0002 /* this is a postmaster bounce */
1914 extern int returntosender __P((char *, ADDRESS *, int, ENVELOPE *));
1917 ** Mail Filters (milter)
1921 ** 32-bit type used by milter
1922 ** (needed by libmilter even if MILTER isn't defined)
1925 typedef SM_INT32 mi_int32;
1928 # define SMFTO_WRITE 0 /* Timeout for sending information */
1929 # define SMFTO_READ 1 /* Timeout waiting for a response */
1930 # define SMFTO_EOM 2 /* Timeout for ACK/NAK to EOM */
1931 # define SMFTO_CONNECT 3 /* Timeout for connect() */
1933 # define SMFTO_NUM_TO 4 /* Total number of timeouts */
1937 char *mf_name; /* filter name */
1938 BITMAP256 mf_flags; /* MTA flags */
1939 mi_int32 mf_fvers; /* filter version */
1940 mi_int32 mf_fflags; /* filter flags */
1941 mi_int32 mf_pflags; /* protocol flags */
1942 char *mf_conn; /* connection info */
1943 int mf_sock; /* connected socket */
1944 char mf_state; /* state of filter */
1945 char mf_lflags; /* "local" flags */
1946 int mf_idx; /* milter number (index) */
1947 time_t mf_timeout[SMFTO_NUM_TO]; /* timeouts */
1948 # if _FFR_MILTER_CHECK
1949 /* for testing only */
1950 mi_int32 mf_mta_prot_version;
1951 mi_int32 mf_mta_prot_flags;
1952 mi_int32 mf_mta_actions;
1953 # endif /* _FFR_MILTER_CHECK */
1956 # define MI_LFL_NONE 0x00000000
1957 # define MI_LFLAGS_SYM(st) (1 << (st)) /* has its own symlist for stage st */
1961 mi_int32 mis_flags; /* filter flags */
1963 typedef struct milters milters_T;
1965 # define MIS_FL_NONE 0x00000000 /* no requirements... */
1966 # define MIS_FL_DEL_RCPT 0x00000001 /* can delete rcpt */
1967 # define MIS_FL_REJ_RCPT 0x00000002 /* can reject rcpt */
1971 # define SMF_REJECT 'R' /* Reject connection on filter fail */
1972 # define SMF_TEMPFAIL 'T' /* tempfail connection on failure */
1973 # define SMF_TEMPDROP '4' /* 421 connection on failure */
1975 EXTERN struct milter *InputFilters[MAXFILTERS];
1976 EXTERN char *InputFilterList;
1977 EXTERN int MilterLogLevel;
1980 extern void setup_daemon_milters __P((void));
1986 ** Vendors can customize sendmail to add special behaviour,
1987 ** generally for back compatibility. Ideally, this should
1988 ** be set up in the .cf file using the "V" command. However,
1989 ** it's quite reasonable for some vendors to want the default
1990 ** be their old version; this can be set using
1991 ** -DVENDOR_DEFAULT=VENDOR_xxx
1994 ** Vendors should apply to sendmail-YYYY@support.sendmail.org
1995 ** (replace YYYY with the current year)
1996 ** for unique vendor codes.
1999 #define VENDOR_BERKELEY 1 /* Berkeley-native configuration file */
2000 #define VENDOR_SUN 2 /* Sun-native configuration file */
2001 #define VENDOR_HP 3 /* Hewlett-Packard specific config syntax */
2002 #define VENDOR_IBM 4 /* IBM specific config syntax */
2003 #define VENDOR_SENDMAIL 5 /* Proofpoint, Inc. specific config syntax */
2004 #define VENDOR_DEC 6 /* Compaq, DEC, Digital */
2006 /* prototypes for vendor-specific hook routines */
2007 extern void vendor_daemon_setup __P((ENVELOPE *));
2008 extern void vendor_set_uid __P((UID_T));
2012 ** Terminal escape codes.
2014 ** To make debugging output clearer.
2019 char *te_rv_on; /* turn reverse-video on */
2020 char *te_under_on; /* turn underlining on */
2021 char *te_normal; /* revert to normal output */
2025 ** Additional definitions
2029 ** d_flags, see daemon.c
2030 ** general rule: lower case: required, upper case: No
2033 #define D_AUTHREQ 'a' /* authentication required */
2034 #define D_BINDIF 'b' /* use if_addr for outgoing connection */
2035 #define D_CANONREQ 'c' /* canonification required (cf) */
2036 #define D_IFNHELO 'h' /* use if name for HELO */
2037 #define D_FQMAIL 'f' /* fq sender address required (cf) */
2039 #define D_EAI 'I' /* EAI supported */
2041 #define D_FQRCPT 'r' /* fq recipient address required (cf) */
2042 #define D_SMTPS 's' /* SMTP over SSL (smtps) */
2043 #define D_UNQUALOK 'u' /* unqualified address is ok (cf) */
2044 #define D_NOAUTH 'A' /* no AUTH */
2045 #define D_NOCANON 'C' /* no canonification (cf) */
2046 #define D_NOETRN 'E' /* no ETRN (MSA) */
2047 #define D_NOTLS 'S' /* don't use STARTTLS */
2048 #define D_ETRNONLY ((char)0x01) /* allow only ETRN (disk low) */
2049 #define D_OPTIONAL 'O' /* optional socket */
2050 #define D_DISABLE ((char)0x02) /* optional socket disabled */
2051 #define D_ISSET ((char)0x03) /* this client struct is set */
2053 #define D_XCNCT ((char)0x04) /* X-Connect was used */
2054 #define D_XCNCT_M ((char)0x05) /* X-Connect was used + "forged" */
2059 ** Queue related items
2062 /* queue file names */
2063 #define ANYQFL_LETTER '?'
2064 #define QUARQF_LETTER 'h'
2065 #define DATAFL_LETTER 'd'
2066 #define XSCRPT_LETTER 'x'
2067 #define NORMQF_LETTER 'q'
2068 #define NEWQFL_LETTER 't'
2070 # define TEMPQF_LETTER 'T'
2071 # define LOSEQF_LETTER 'Q'
2073 /* queue sort order */
2074 #define QSO_BYPRIORITY 0 /* sort by message priority */
2075 #define QSO_BYHOST 1 /* sort by first host name */
2076 #define QSO_BYTIME 2 /* sort by submission time */
2077 #define QSO_BYFILENAME 3 /* sort by file name only */
2078 #define QSO_RANDOM 4 /* sort in random order */
2079 #define QSO_BYMODTIME 5 /* sort by modification time */
2080 #define QSO_NONE 6 /* do not sort */
2082 # define QSO_BYSHUFFLE 7 /* sort by shuffled host name */
2085 #define NOQGRP (-1) /* no queue group (yet) */
2086 #define ENVQGRP (-2) /* use queue group of envelope */
2087 #define NOAQGRP (-3) /* no queue group in addr (yet) */
2088 #define ISVALIDQGRP(x) ((x) >= 0) /* valid queue group? */
2089 #define NOQDIR (-1) /* no queue directory (yet) */
2090 #define ENVQDIR (-2) /* use queue directory of envelope */
2091 #define NOAQDIR (-3) /* no queue directory in addr (yet) */
2092 #define ISVALIDQDIR(x) ((x) >= 0) /* valid queue directory? */
2093 #define RS_QUEUEGROUP "queuegroup" /* ruleset for queue group selection */
2095 #define NOW ((time_t) (-1)) /* queue return: now */
2097 /* SuperSafe values */
2098 #define SAFE_NO 0 /* no fsync(): don't use... */
2099 #define SAFE_INTERACTIVE 1 /* limit fsync() in -odi */
2100 #define SAFE_REALLY 2 /* always fsync() */
2101 #define SAFE_REALLY_POSTMILTER 3 /* fsync() if milter says OK */
2103 /* QueueMode bits */
2104 #define QM_NORMAL ' '
2105 #define QM_QUARANTINE 'Q'
2108 /* Queue Run Limitations */
2111 char *queue_match; /* string to match */
2112 bool queue_negate; /* or not match, if set */
2113 struct queue_char *queue_next;
2116 /* run_work_group() flags */
2117 #define RWG_NONE 0x0000
2118 #define RWG_FORK 0x0001
2119 #define RWG_VERBOSE 0x0002
2120 #define RWG_PERSISTENT 0x0004
2121 #define RWG_FORCE 0x0008
2122 #define RWG_RUNALL 0x0010
2124 typedef struct queue_char QUEUE_CHAR;
2126 EXTERN int volatile CurRunners; /* current number of runner children */
2127 EXTERN int MaxQueueRun; /* maximum number of jobs in one queue run */
2128 EXTERN int MaxQueueChildren; /* max # of forked queue children */
2129 EXTERN int MaxRunnersPerQueue; /* max # proc's active in queue group */
2130 EXTERN int NiceQueueRun; /* nice queue runs to this value */
2131 EXTERN int NumQueue; /* number of queue groups */
2132 EXTERN int QueueFileMode; /* mode on files in mail queue */
2133 EXTERN int QueueMode; /* which queue items to act upon */
2134 EXTERN int QueueSortOrder; /* queue sorting order algorithm */
2135 EXTERN time_t MinQueueAge; /* min delivery interval */
2136 EXTERN time_t MaxQueueAge; /* max delivery interval */
2137 EXTERN time_t QueueIntvl; /* intervals between running the queue */
2138 EXTERN char *QueueDir; /* location of queue directory */
2139 EXTERN QUEUE_CHAR *QueueLimitId; /* limit queue run to id */
2140 EXTERN QUEUE_CHAR *QueueLimitQuarantine; /* limit queue run to quarantine reason */
2141 EXTERN QUEUE_CHAR *QueueLimitRecipient; /* limit queue run to rcpt */
2142 EXTERN QUEUE_CHAR *QueueLimitSender; /* limit queue run to sender */
2143 EXTERN QUEUEGRP *Queue[MAXQUEUEGROUPS + 1]; /* queue groups */
2144 #if _FFR_BOUNCE_QUEUE
2145 EXTERN int BounceQueue;
2149 extern void assign_queueid __P((ENVELOPE *));
2150 extern ADDRESS *copyqueue __P((ADDRESS *, SM_RPOOL_T *));
2151 extern void cleanup_queues __P((void));
2152 extern bool doqueuerun __P((void));
2153 extern void initsys __P((ENVELOPE *));
2154 extern void loseqfile __P((ENVELOPE *, char *));
2155 extern int name2qid __P((char *));
2156 extern char *qid_printname __P((ENVELOPE *));
2157 extern char *qid_printqueue __P((int, int));
2158 extern void quarantine_queue __P((char *, int));
2159 extern char *queuename __P((ENVELOPE *, int));
2160 extern void queueup __P((ENVELOPE *, bool, bool));
2161 extern bool runqueue __P((bool, bool, bool, bool));
2162 extern bool run_work_group __P((int, int));
2163 extern void set_def_queueval __P((QUEUEGRP *, bool));
2164 extern void setup_queues __P((bool));
2165 extern bool setnewqueue __P((ENVELOPE *));
2166 extern bool shouldqueue __P((long, time_t));
2167 extern void sync_queue_time __P((void));
2168 extern void init_qid_alg __P((void));
2169 extern int print_single_queue __P((int, int));
2170 #if REQUIRES_DIR_FSYNC
2171 # define SYNC_DIR(path, panic) sync_dir(path, panic)
2172 extern void sync_dir __P((char *, bool));
2174 # define SYNC_DIR(path, panic) ((void) 0)
2180 ** Indicated values are the MINIMUM per RFC 1123 section 5.3.2.
2185 /* RFC 1123-specified timeouts [minimum value] */
2186 time_t to_initial; /* initial greeting timeout [5m] */
2187 time_t to_mail; /* MAIL command [5m] */
2188 time_t to_rcpt; /* RCPT command [5m] */
2189 time_t to_datainit; /* DATA initiation [2m] */
2190 time_t to_datablock; /* DATA block [3m] */
2191 time_t to_datafinal; /* DATA completion [10m] */
2192 time_t to_nextcommand; /* next command [5m] */
2193 /* following timeouts are not mentioned in RFC 1123 */
2194 time_t to_iconnect; /* initial connection timeout (first try) */
2195 time_t to_connect; /* initial connection timeout (later tries) */
2196 time_t to_aconnect; /* all connections timeout (MX and A records) */
2197 time_t to_rset; /* RSET command */
2198 time_t to_helo; /* HELO command */
2199 time_t to_quit; /* QUIT command */
2200 time_t to_miscshort; /* misc short commands (NOOP, VERB, etc) */
2201 time_t to_ident; /* IDENT protocol requests */
2202 time_t to_fileopen; /* opening :include: and .forward files */
2203 time_t to_control; /* process a control socket command */
2204 time_t to_lhlo; /* LMTP: LHLO command */
2206 time_t to_auth; /* AUTH dialogue [10m] */
2209 time_t to_starttls; /* STARTTLS dialogue [10m] */
2211 /* following are per message */
2212 time_t to_q_return[MAXTOCLASS]; /* queue return timeouts */
2213 time_t to_q_warning[MAXTOCLASS]; /* queue warning timeouts */
2214 time_t res_retrans[MAXRESTOTYPES]; /* resolver retransmit */
2215 int res_retry[MAXRESTOTYPES]; /* resolver retry */
2218 /* timeout classes for return and warning timeouts */
2219 #define TOC_NORMAL 0 /* normal delivery */
2220 #define TOC_URGENT 1 /* urgent delivery */
2221 #define TOC_NONURGENT 2 /* non-urgent delivery */
2222 #define TOC_DSN 3 /* DSN delivery */
2224 /* resolver timeout specifiers */
2225 #define RES_TO_FIRST 0 /* first attempt */
2226 #define RES_TO_NORMAL 1 /* subsequent attempts */
2227 #define RES_TO_DEFAULT 2 /* default value */
2230 extern void inittimeouts __P((char *, bool));
2233 ** Interface probing
2236 #define DPI_PROBENONE 0 /* Don't probe any interfaces */
2237 #define DPI_PROBEALL 1 /* Probe all interfaces */
2238 #define DPI_SKIPLOOPBACK 2 /* Don't probe loopback interfaces */
2241 ** Trace information
2244 /* macros for debugging flags */
2246 # define tTd(flag, level) (tTdvect[flag] >= (unsigned char)level)
2248 # define tTd(flag, level) (tTdvect[flag] >= (unsigned char)level && !IntSig)
2250 #define tTdlevel(flag) (tTdvect[flag])
2253 extern unsigned char tTdvect[100]; /* trace vector */
2256 ** Miscellaneous information.
2260 ** The "no queue id" queue id for sm_syslog
2265 #define CURHOSTNAME (CurHostName == NULL ? "local" : CurHostName)
2268 ** Some in-line functions
2271 /* set exit status */
2272 #define setstat(s) \
2275 if (ExitStat == EX_OK || ExitStat == EX_TEMPFAIL) \
2280 #define STRUCTCOPY(s, d) d = s
2283 ** Update a permanent string variable with a new value.
2284 ** The old value is freed, the new value is strdup'ed.
2286 ** We use sm_pstrdup_x to duplicate the string because it raises
2287 ** an exception on error, and because it allocates "permanent storage"
2288 ** which is not expected to be freed before process exit.
2289 ** The latter is important for memory leak analysis.
2291 ** If an exception occurs while strdup'ing the new value,
2292 ** then the variable remains set to the old value.
2293 ** That's why the strdup must occur before we free the old value.
2295 #define PSTRSET(var, val) \
2298 char *_newval = sm_pstrdup_x(val); \
2304 #define _CHECK_RESTART \
2307 if (ShutdownRequest != NULL) \
2308 shutdown_daemon(); \
2309 else if (RestartRequest != NULL) \
2311 else if (RestartWorkGroup) \
2312 restart_marked_work_groups(); \
2315 # define CHECK_RESTART _CHECK_RESTART
2317 #define CHK_CUR_RUNNERS(fct, idx, count) \
2320 if (CurRunners < 0) \
2323 sm_syslog(LOG_ERR, NOQID, \
2324 "%s: CurRunners=%d, i=%d, count=%d, status=should not happen", \
2325 fct, CurRunners, idx, count); \
2330 /* reply types (text in SmtpMsgBuffer) */
2331 #define XS_DEFAULT 0 /* other commands, e.g., RSET */
2332 #define XS_STARTTLS 1
2340 #define XS_DATA2 9 /* LMTP */
2344 ** Global variables.
2350 #if _FFR_ADDR_TYPE_MODES
2351 EXTERN bool AddrTypeModes; /* addr_type: extra "mode" information */
2353 EXTERN bool AllowBogusHELO; /* allow syntax errors on HELO command */
2354 EXTERN bool CheckAliases; /* parse addresses during newaliases */
2355 #if _FFR_QUEUE_RUN_PARANOIA
2356 EXTERN int CheckQueueRunners; /* check whether queue runners are OK */
2358 EXTERN bool ColonOkInAddr; /* single colon legal in address */
2359 #if !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_)
2360 EXTERN bool ConfigFileRead; /* configuration file has been read */
2362 EXTERN bool DisConnected; /* running with OutChannel redirect to transcript file */
2363 EXTERN bool DontExpandCnames; /* do not $[...$] expand CNAMEs */
2364 EXTERN bool DontInitGroups; /* avoid initgroups() because of NIS cost */
2365 EXTERN bool DontLockReadFiles; /* don't read lock support files */
2366 EXTERN bool DontPruneRoutes; /* don't prune source routes */
2367 EXTERN bool ForkQueueRuns; /* fork for each job when running the queue */
2368 EXTERN bool FromFlag; /* if set, "From" person is explicit */
2369 EXTERN bool FipsMode;
2370 EXTERN bool GrabTo; /* if set, get recipients from msg */
2371 #if _FFR_EIGHT_BIT_ADDR_OK
2372 EXTERN bool EightBitAddrOK; /* we'll let 8-bit addresses through */
2374 # define EightBitAddrOK false
2376 EXTERN bool HasEightBits; /* has at least one eight bit input byte */
2377 EXTERN bool HasWildcardMX; /* don't use MX records when canonifying */
2378 EXTERN bool HoldErrs; /* only output errors to transcript */
2379 EXTERN bool IgnoreHostStatus; /* ignore long term host status files */
2380 EXTERN bool IgnrDot; /* don't let dot end messages */
2382 EXTERN bool KeepBcc;
2384 # define KeepBcc false
2386 EXTERN bool LogUsrErrs; /* syslog user errors (e.g., SMTP RCPT cmd) */
2387 EXTERN bool MatchGecos; /* look for user names in gecos field */
2388 EXTERN bool MeToo; /* send to the sender also */
2389 EXTERN bool NoAlias; /* suppress aliasing */
2390 EXTERN bool NoConnect; /* don't connect to non-local mailers */
2391 EXTERN bool OnlyOneError; /* .... or only want to give one SMTP reply */
2392 EXTERN bool QuickAbort; /* .... but only if we want a quick abort */
2393 #if _FFR_REJECT_NUL_BYTE
2394 EXTERN bool RejectNUL; /* reject NUL input byte? */
2396 #if REQUIRES_DIR_FSYNC
2397 EXTERN bool RequiresDirfsync; /* requires fsync() for directory */
2399 EXTERN bool volatile RestartWorkGroup; /* daemon needs to restart some work groups */
2400 EXTERN bool RrtImpliesDsn; /* turn Return-Receipt-To: into DSN */
2401 EXTERN bool SaveFrom; /* save leading "From" lines */
2402 EXTERN bool SendMIMEErrors; /* send error messages in MIME format */
2403 EXTERN bool SevenBitInput; /* force 7-bit data on input */
2404 EXTERN bool SingleLineFromHeader; /* force From: header to be one line */
2405 EXTERN bool SingleThreadDelivery; /* single thread hosts on delivery */
2406 EXTERN bool SoftBounce; /* replace 5xy by 4xy (for testing) */
2407 EXTERN bool volatile StopRequest; /* stop sending output */
2408 EXTERN bool SuprErrs; /* set if we are suppressing errors */
2409 EXTERN bool TryNullMXList; /* if we are the best MX, try host directly */
2410 EXTERN bool UseMSP; /* mail submission: group writable queue ok? */
2411 EXTERN bool WorkAroundBrokenAAAA; /* some nameservers return SERVFAIL on AAAA queries */
2412 EXTERN bool UseErrorsTo; /* use Errors-To: header (back compat) */
2413 EXTERN bool UseNameServer; /* using DNS -- interpret h_errno & MX RRs */
2414 EXTERN bool UseCompressedIPv6Addresses; /* for more specific zero-subnet matches */
2415 EXTERN char InetMode; /* default network for daemon mode */
2416 EXTERN char OpMode; /* operation mode, see below */
2417 EXTERN char SpaceSub; /* substitution for <lwsp> */
2418 #if _FFR_BADRCPT_SHUTDOWN
2419 EXTERN int BadRcptShutdown; /* Shutdown connection for rejected RCPTs */
2420 EXTERN int BadRcptShutdownGood; /* above even when there are good RCPTs */
2422 EXTERN int BadRcptThrottle; /* Throttle rejected RCPTs per SMTP message */
2423 #if _FFR_RCPTTHROTDELAY
2424 EXTERN unsigned int BadRcptThrottleDelay; /* delay for BadRcptThrottle */
2426 # define BadRcptThrottleDelay 1
2428 #if _FFR_TLS_ALTNAMES
2429 EXTERN bool SetCertAltnames;
2431 EXTERN int CheckpointInterval; /* queue file checkpoint interval */
2432 EXTERN int ConfigLevel; /* config file level */
2433 EXTERN int ConnRateThrottle; /* throttle for SMTP connection rate */
2434 EXTERN int volatile CurChildren; /* current number of daemonic children */
2435 EXTERN int CurrentLA; /* current load average */
2437 EXTERN int Dane; /* DANE */
2439 EXTERN int DefaultNotify; /* default DSN notification flags */
2440 EXTERN int DelayLA; /* load average to delay connections */
2441 EXTERN int DontProbeInterfaces; /* don't probe interfaces for names */
2442 EXTERN int Errors; /* set if errors (local to single pass) */
2443 EXTERN int ExitStat; /* exit status code */
2444 EXTERN int FastSplit; /* fast initial splitting of envelopes */
2445 EXTERN int FileMode; /* mode on files */
2446 EXTERN int LineNumber; /* line number in current input */
2447 EXTERN int LogLevel; /* level of logging to perform */
2448 EXTERN int MaxAliasRecursion; /* maximum depth of alias recursion */
2449 EXTERN int MaxChildren; /* maximum number of daemonic children */
2450 EXTERN int MaxForwardEntries; /* maximum number of forward entries */
2451 EXTERN int MaxHeadersLength; /* max length of headers */
2452 EXTERN int MaxHopCount; /* max # of hops until bounce */
2453 EXTERN int MaxMacroRecursion; /* maximum depth of macro recursion */
2454 EXTERN int MaxMimeFieldLength; /* maximum MIME field length */
2455 EXTERN int MaxMimeHeaderLength; /* maximum MIME header length */
2456 EXTERN int MaxNOOPCommands; /* max "noise" commands before slowdown */
2458 EXTERN int MaxRcptPerMsg; /* max recipients per SMTP message */
2459 EXTERN int MaxRuleRecursion; /* maximum depth of ruleset recursion */
2461 EXTERN char *MessageAccept; /* "Message accepted for delivery" reply text */
2464 EXTERN int MimeMode; /* MIME processing mode */
2465 EXTERN int NoRecipientAction;
2468 EXTERN int Numfilesys; /* number of queue file systems */
2469 EXTERN int *PNumFileSys;
2470 # define NumFileSys (*PNumFileSys)
2471 #else /* SM_CONF_SHM */
2472 EXTERN int NumFileSys; /* number of queue file systems */
2473 #endif /* SM_CONF_SHM */
2475 EXTERN int QueueLA; /* load average starting forced queueing */
2476 EXTERN int RefuseLA; /* load average refusing connections */
2477 EXTERN time_t RejectLogInterval; /* time btwn log msgs while refusing */
2479 EXTERN long QueueLowMem; /* low memory starting forced queueing */
2480 EXTERN long RefuseLowMem; /* low memory refusing connections */
2481 EXTERN char *MemoryResource;/* memory resource to look up */
2482 #endif /* _FFR_MEMSTAT */
2483 EXTERN int SuperSafe; /* be extra careful, even if expensive */
2484 EXTERN int VendorCode; /* vendor-specific operation enhancements */
2485 EXTERN int Verbose; /* set if blow-by-blow desired */
2486 EXTERN gid_t DefGid; /* default gid to run as */
2487 EXTERN gid_t RealGid; /* real gid of caller */
2488 EXTERN gid_t RunAsGid; /* GID to become for bulk of run */
2489 EXTERN gid_t EffGid; /* effective gid */
2491 EXTERN key_t ShmKey; /* shared memory key */
2492 EXTERN char *ShmKeyFile; /* shared memory key file */
2494 EXTERN pid_t CurrentPid; /* current process id */
2495 EXTERN pid_t DaemonPid; /* process id of daemon */
2496 EXTERN pid_t PidFilePid; /* daemon/queue runner who wrote pid file */
2497 EXTERN uid_t DefUid; /* default uid to run as */
2498 EXTERN uid_t RealUid; /* real uid of caller */
2499 EXTERN uid_t RunAsUid; /* UID to become for bulk of run */
2500 EXTERN uid_t TrustedUid; /* uid of trusted user for files and startup */
2501 EXTERN size_t DataFileBufferSize; /* size of buf for in-core data file */
2502 EXTERN time_t DeliverByMin; /* deliver by minimum time */
2503 EXTERN time_t DialDelay; /* delay between dial-on-demand tries */
2504 EXTERN time_t SafeAlias; /* interval to wait until @:@ in alias file */
2505 EXTERN time_t ServiceCacheMaxAge; /* refresh interval for cache */
2506 EXTERN size_t XscriptFileBufferSize; /* size of buf for in-core transcript file */
2507 EXTERN MODE_T OldUmask; /* umask when sendmail starts up */
2508 EXTERN long MaxMessageSize; /* advertised max size we will accept */
2509 EXTERN long MinBlocksFree; /* min # of blocks free on queue fs */
2510 EXTERN long QueueFactor; /* slope of queue function */
2511 EXTERN long WkClassFact; /* multiplier for message class -> priority */
2512 EXTERN long WkRecipFact; /* multiplier for # of recipients -> priority */
2513 EXTERN long WkTimeFact; /* priority offset each time this job is run */
2514 EXTERN char *ControlSocketName; /* control socket filename [control.c] */
2515 EXTERN char *CurHostName; /* current host we are dealing with */
2516 EXTERN char *DeadLetterDrop; /* path to dead letter office */
2517 EXTERN char *DefUser; /* default user to run as (from DefUid) */
2518 EXTERN char *DefaultCharSet; /* default character set for MIME */
2519 EXTERN char *DoubleBounceAddr; /* where to send double bounces */
2520 EXTERN char *ErrMsgFile; /* file to prepend to all error messages */
2521 EXTERN char *FallbackMX; /* fall back MX host */
2522 EXTERN char *FallbackSmartHost; /* fall back smart host */
2523 EXTERN char *FileName; /* name to print on error messages */
2524 EXTERN char *ForwardPath; /* path to search for .forward files */
2525 EXTERN char *HeloName; /* hostname to announce in HELO */
2526 EXTERN char *HelpFile; /* location of SMTP help file */
2527 EXTERN char *HostStatDir; /* location of host status information */
2528 EXTERN char *HostsFile; /* path to /etc/hosts file */
2529 extern char *Mbdb; /* mailbox database type */
2530 EXTERN char *MustQuoteChars; /* quote these characters in phrases */
2531 EXTERN char *MyHostName; /* name of this host for SMTP messages */
2532 EXTERN char *OperatorChars; /* operators (old $o macro) */
2533 EXTERN char *PidFile; /* location of proc id file [conf.c] */
2534 EXTERN char *PostMasterCopy; /* address to get errs cc's */
2535 EXTERN char *ProcTitlePrefix; /* process title prefix */
2536 EXTERN char *RealHostName; /* name of host we are talking to */
2537 EXTERN char *RealUserName; /* real user name of caller */
2538 EXTERN char *volatile RestartRequest;/* a sendmail restart has been requested */
2539 EXTERN char *RunAsUserName; /* user to become for bulk of run */
2540 EXTERN char *SafeFileEnv; /* chroot location for file delivery */
2541 EXTERN char *ServiceSwitchFile; /* backup service switch */
2542 EXTERN char *volatile ShutdownRequest;/* a sendmail shutdown has been requested */
2543 EXTERN bool volatile IntSig;
2544 EXTERN char *SmtpGreeting; /* SMTP greeting message (old $e macro) */
2545 EXTERN char *SmtpPhase; /* current phase in SMTP processing */
2546 EXTERN char SmtpError[MAXLINE]; /* save failure error messages */
2547 EXTERN char *StatFile; /* location of statistics summary */
2548 EXTERN char *TimeZoneSpec; /* override time zone specification */
2549 EXTERN char *UdbSpec; /* user database source spec */
2550 EXTERN char *UnixFromLine; /* UNIX From_ line (old $l macro) */
2551 EXTERN char **ExternalEnviron; /* saved user (input) environment */
2552 EXTERN char **SaveArgv; /* argument vector for re-execing */
2553 EXTERN BITMAP256 DontBlameSendmail; /* DontBlameSendmail bits */
2554 EXTERN SM_FILE_T *InChannel; /* input connection */
2555 EXTERN SM_FILE_T *OutChannel; /* output connection */
2556 EXTERN SM_FILE_T *TrafficLogFile; /* file in which to log all traffic */
2558 EXTERN void *HesiodContext;
2560 EXTERN ENVELOPE *CurEnv; /* envelope currently being processed */
2561 EXTERN char *RuleSetNames[MAXRWSETS]; /* ruleset number to name */
2562 EXTERN char *UserEnviron[MAXUSERENVIRON + 1];
2563 EXTERN struct rewrite *RewriteRules[MAXRWSETS];
2564 EXTERN struct termescape TermEscape; /* terminal escape codes */
2565 EXTERN SOCKADDR ConnectOnlyTo; /* override connection address (for testing) */
2566 EXTERN SOCKADDR RealHostAddr; /* address of host we are talking to */
2567 extern const SM_EXC_TYPE_T EtypeQuickAbort; /* type of a QuickAbort exception */
2569 #if _FFR_BLANKENV_MACV
2570 EXTERN int Hacks; /* bit field of run-time enabled "hacks" */
2571 # define H_LOOKUP_MACRO_IN_BLANKENV 0x0001
2572 # define LOOKUP_MACRO_IN_BLANKENV (Hacks & H_LOOKUP_MACRO_IN_BLANKENV)
2574 # define LOOKUP_MACRO_IN_BLANKENV false
2577 EXTERN int ConnectionRateWindowSize;
2580 ** Declarations of useful functions
2583 /* Transcript file */
2584 extern void closexscript __P((ENVELOPE *));
2585 extern void openxscript __P((ENVELOPE *));
2588 #define NR_PRINTFLIKE(a, b) PRINTFLIKE(a, b)
2590 #define NR_PRINTFLIKE(a, b)
2594 extern void buffer_errors __P((void));
2595 extern void flush_errors __P((bool));
2596 extern void NR_PRINTFLIKE(1, 2) message __P((const char *, ...));
2597 extern void NR_PRINTFLIKE(1, 2) nmessage __P((const char *, ...));
2599 extern void NR_PRINTFLIKE(3, 4) emessage __P((const char *, const char *, const char *, ...));
2600 extern int extsc __P((const char *, int, char *, char *));
2602 extern void NR_PRINTFLIKE(1, 2) syserr __P((const char *, ...));
2603 extern void NR_PRINTFLIKE(2, 3) usrerrenh __P((char *, const char *, ...));
2604 extern void NR_PRINTFLIKE(1, 2) usrerr __P((const char *, ...));
2605 extern int isenhsc __P((const char *, int));
2606 extern int extenhsc __P((const char *, int, char *));
2609 extern void alias __P((ADDRESS *, ADDRESS **, int, ENVELOPE *));
2610 extern bool aliaswait __P((MAP *, char *, bool));
2611 extern void forward __P((ADDRESS *, ADDRESS **, int, ENVELOPE *));
2612 extern void readaliases __P((MAP *, SM_FILE_T *, bool, bool));
2613 extern bool rebuildaliases __P((MAP *, bool));
2614 extern void setalias __P((char *));
2617 extern void logdelivery __P((MAILER *, MCI *, char *, const char *, ADDRESS *, time_t, ENVELOPE *, ADDRESS *, int));
2618 extern void logsender __P((ENVELOPE *, char *));
2619 extern void PRINTFLIKE(3, 4) sm_syslog __P((int, const char *, const char *, ...));
2622 extern void giveresponse __P((int, char *, MAILER *, MCI *, ADDRESS *, time_t, ENVELOPE *, ADDRESS *));
2623 extern int reply __P((MAILER *, MCI *, ENVELOPE *, time_t, void (*)__P((char *, bool, MAILER *, MCI *, ENVELOPE *)), char **, int));
2624 extern void smtp __P((char *volatile, BITMAP256, ENVELOPE *volatile));
2626 extern int smtpauth __P((MAILER *, MCI *, ENVELOPE *));
2628 extern int smtpdata __P((MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t));
2629 extern int smtpgetstat __P((MAILER *, MCI *, ENVELOPE *));
2630 extern int smtpmailfrom __P((MAILER *, MCI *, ENVELOPE *));
2631 extern void smtpmessage __P((char *, MAILER *, MCI *, ...));
2632 extern void smtpinit __P((MAILER *, MCI *, ENVELOPE *, bool));
2633 extern char *smtptodsn __P((int));
2634 extern int smtpprobe __P((MCI *));
2635 extern void smtpquit __P((MAILER *, MCI *, ENVELOPE *));
2636 extern int smtprcpt __P((ADDRESS *, MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t));
2637 extern void smtprset __P((MAILER *, MCI *, ENVELOPE *));
2639 #define REPLYTYPE(r) ((r) / 100) /* first digit of reply code */
2640 #define REPLYCLASS(r) (((r) / 10) % 10) /* second digit of reply code */
2641 #define REPLYMINOR(r) ((r) % 10) /* last digit of reply code */
2642 #define ISSMTPCODE(c) (isascii(c[0]) && isdigit(c[0]) && \
2643 isascii(c[1]) && isdigit(c[1]) && \
2644 isascii(c[2]) && isdigit(c[2]))
2645 #define ISSMTPREPLY(c) (ISSMTPCODE(c) && \
2646 (c[3] == ' ' || c[3] == '-' || c[3] == '\0'))
2647 #define SM_ISSPACE(c) (isascii(c) && isspace(c))
2650 extern pid_t dowork __P((int, int, char *, bool, bool, ENVELOPE *));
2651 extern pid_t doworklist __P((ENVELOPE *, bool, bool));
2652 extern int endmailer __P((MCI *, ENVELOPE *, char **));
2653 extern int mailfile __P((char *volatile, MAILER *volatile, ADDRESS *, volatile long, ENVELOPE *));
2654 extern void sendall __P((ENVELOPE *, int));
2657 #define STATS_NORMAL 'n'
2658 #define STATS_QUARANTINE 'q'
2659 #define STATS_REJECT 'r'
2660 #define STATS_CONNECT 'c'
2662 extern void markstats __P((ENVELOPE *, ADDRESS *, int));
2663 extern void clearstats __P((void));
2664 extern void poststats __P((char *));
2666 /* control socket */
2667 extern void closecontrolsocket __P((bool));
2668 extern void clrcontrol __P((void));
2669 extern void control_command __P((int, ENVELOPE *));
2670 extern int opencontrolsocket __P((void));
2673 /* milter functions */
2674 extern void milter_config __P((char *, struct milter **, int));
2675 extern void milter_setup __P((char *));
2676 extern void milter_set_option __P((char *, char *, bool));
2677 extern bool milter_init __P((ENVELOPE *, char *, milters_T *));
2678 extern void milter_quit __P((ENVELOPE *));
2679 extern void milter_abort __P((ENVELOPE *));
2680 extern char *milter_connect __P((char *, SOCKADDR, ENVELOPE *, char *));
2681 extern char *milter_helo __P((char *, ENVELOPE *, char *));
2682 extern char *milter_envfrom __P((char **, ENVELOPE *, char *));
2683 extern char *milter_data_cmd __P((ENVELOPE *, char *));
2684 extern char *milter_envrcpt __P((char **, ENVELOPE *, char *, bool));
2685 extern char *milter_data __P((ENVELOPE *, char *));
2686 extern char *milter_unknown __P((char *, ENVELOPE *, char *));
2689 extern char *addquotes __P((char *, SM_RPOOL_T *));
2690 extern char *arpadate __P((char *));
2691 extern bool atobool __P((char *));
2692 extern int atooct __P((char *));
2693 extern void auth_warning __P((ENVELOPE *, const char *, ...));
2694 extern int blocksignal __P((int));
2695 extern bool bitintersect __P((BITMAP256, BITMAP256));
2696 extern bool bitzerop __P((BITMAP256));
2697 extern int check_bodytype __P((char *));
2698 extern void buildfname __P((char *, char *, char *, int));
2699 extern bool chkclientmodifiers __P((int));
2700 extern bool chkdaemonmodifiers __P((int));
2701 extern int checkcompat __P((ADDRESS *, ENVELOPE *));
2703 extern void checkfd012 __P((char *));
2704 extern void checkfdopen __P((int, char *));
2706 extern void checkfds __P((char *));
2707 extern bool chownsafe __P((int, bool));
2708 extern void cleanstrcpy __P((char *, char *, int));
2710 extern void cleanup_shm __P((bool));
2712 extern void close_sendmail_pid __P((void));
2713 extern void clrdaemon __P((void));
2714 extern void collect __P((SM_FILE_T *, bool, HDR **, ENVELOPE *, bool));
2715 extern time_t convtime __P((char *, int));
2716 extern char **copyplist __P((char **, bool, SM_RPOOL_T *));
2717 extern void copy_class __P((int, int));
2718 extern int count_open_connections __P((SOCKADDR *));
2719 extern time_t curtime __P((void));
2720 extern char *defcharset __P((ENVELOPE *));
2721 extern char *denlstring __P((char *, bool, bool));
2722 extern void dferror __P((SM_FILE_T *volatile, char *, ENVELOPE *));
2723 extern void disconnect __P((int, ENVELOPE *));
2724 extern void disk_status __P((SM_FILE_T *, char *));
2725 extern int dns_getcanonname __P((char *, int, bool, int *, int *));
2726 extern pid_t dofork __P((void));
2727 extern int drop_privileges __P((bool));
2728 extern int dsntoexitstat __P((char *));
2729 extern void dumpfd __P((int, bool, bool));
2731 extern void dumpstab __P((void));
2733 extern void dumpstate __P((char *));
2734 extern bool enoughdiskspace __P((long, ENVELOPE *));
2735 extern char *exitstat __P((char *));
2736 extern void fatal_error __P((SM_EXC_T *));
2737 extern char *fgetfolded __P((char *, int *, SM_FILE_T *));
2738 extern void fill_fd __P((int, char *));
2739 extern char *find_character __P((char *, int));
2740 extern int finduser __P((char *, bool *, SM_MBDB_T *));
2741 extern void finis __P((bool, bool, volatile int));
2742 extern void fixcrlf __P((char *, bool));
2743 extern long freediskspace __P((const char *, long *));
2744 #if NETINET6 && NEEDSGETIPNODE
2745 extern void freehostent __P((struct hostent *));
2747 extern char *get_column __P((char *, int, int, char *, int));
2748 extern char *getauthinfo __P((int, bool *));
2749 extern int getdtsize __P((void));
2750 extern int getla __P((void));
2751 extern char *getmodifiers __P((char *, BITMAP256));
2752 extern BITMAP256 *getrequests __P((ENVELOPE *));
2753 extern char *getvendor __P((int));
2754 extern void help __P((char *, ENVELOPE *));
2755 extern void init_md __P((int, char **));
2756 extern void initdaemon __P((void));
2757 extern void inithostmaps __P((void));
2758 extern void initmacros __P((ENVELOPE *));
2759 extern void initsetproctitle __P((int, char **, char **));
2760 extern void init_vendor_macros __P((ENVELOPE *));
2761 extern SIGFUNC_DECL intsig __P((int));
2762 extern bool isatom __P((const char *));
2763 extern bool isloopback __P((SOCKADDR sa));
2764 extern void load_if_names __P((void));
2765 extern bool lockfile __P((int, char *, char *, int));
2766 extern void log_sendmail_pid __P((ENVELOPE *));
2767 extern void logundelrcpts __P((ENVELOPE *, char *, int, bool));
2768 extern char lower __P((int));
2769 extern void makelower __P((char *));
2770 extern int makeconnection_ds __P((char *, MCI *));
2772 extern int makeconnection __P((char *, volatile unsigned int, MCI *, ENVELOPE *, time_t, unsigned long *));
2774 extern int makeconnection __P((char *, volatile unsigned int, MCI *, ENVELOPE *, time_t));
2776 extern void makeworkgroups __P((void));
2777 extern void markfailure __P((ENVELOPE *, ADDRESS *, MCI *, int, bool));
2778 extern void mark_work_group_restart __P((int, int));
2779 extern MCI *mci_new __P((SM_RPOOL_T *));
2780 extern char *munchstring __P((char *, char **, int));
2781 extern struct hostent *myhostname __P((char *, int));
2782 extern char *newstr __P((const char *));
2784 extern char *nisplus_default_domain __P((void)); /* extern for Sun */
2786 extern bool path_is_dir __P((char *, bool));
2787 extern int pickqdir __P((QUEUEGRP *qg, long fsize, ENVELOPE *e));
2788 extern char *pintvl __P((time_t, bool));
2789 extern void printav __P((SM_FILE_T *, char **));
2790 extern void printmailer __P((SM_FILE_T *, MAILER *));
2791 extern void printnqe __P((SM_FILE_T *, char *));
2792 extern void printopenfds __P((bool));
2793 extern void printqueue __P((void));
2794 extern void printrules __P((void));
2795 extern pid_t prog_open __P((char **, int *, ENVELOPE *));
2796 extern bool putline __P((char *, MCI *));
2797 extern bool putxline __P((char *, size_t, MCI *, int));
2798 extern void queueup_macros __P((int, SM_FILE_T *, ENVELOPE *));
2799 extern void readcf __P((char *, bool, ENVELOPE *));
2800 extern SIGFUNC_DECL reapchild __P((int));
2801 extern int releasesignal __P((int));
2802 extern void resetlimits __P((void));
2803 extern void restart_daemon __P((void));
2804 extern void restart_marked_work_groups __P((void));
2805 extern bool rfc822_string __P((char *));
2806 extern void rmexpstab __P((void));
2807 extern bool savemail __P((ENVELOPE *, bool));
2808 extern void seed_random __P((void));
2809 extern void sendtoargv __P((char **, ENVELOPE *));
2810 extern void setclientoptions __P((char *));
2811 extern bool setdaemonoptions __P((char *));
2812 extern void setdefaults __P((ENVELOPE *));
2813 extern void setdefuser __P((void));
2814 extern bool setvendor __P((char *));
2815 extern void set_op_mode __P((int));
2816 extern void setoption __P((int, char *, bool, bool, ENVELOPE *));
2817 extern sigfunc_t setsignal __P((int, sigfunc_t));
2818 extern void sm_setuserenv __P((const char *, const char *));
2819 extern void settime __P((ENVELOPE *));
2821 extern int set_tls_rd_tmo __P((int));
2823 # define set_tls_rd_tmo(rd_tmo) 0
2825 extern char *sfgets __P((char *, int, SM_FILE_T *, time_t, char *));
2826 extern char *shortenstring __P((const char *, size_t));
2827 extern char *shorten_hostname __P((char []));
2828 extern bool shorten_rfc822_string __P((char *, size_t));
2829 extern void shutdown_daemon __P((void));
2830 extern void sm_closefrom __P((int lowest, int highest));
2831 extern void sm_close_on_exec __P((int lowest, int highest));
2832 extern struct hostent *sm_gethostbyname __P((char *, int));
2833 extern struct hostent *sm_gethostbyaddr __P((char *, int, int));
2834 extern void sm_getla __P((void));
2835 extern struct passwd *sm_getpwnam __P((char *));
2836 extern struct passwd *sm_getpwuid __P((UID_T));
2837 extern void sm_setproctitle __P((bool, ENVELOPE *, const char *, ...));
2838 extern pid_t sm_wait __P((int *));
2839 extern bool split_by_recipient __P((ENVELOPE *e));
2840 extern void stop_sendmail __P((void));
2841 extern void stripbackslash __P((char *));
2842 extern bool strreplnonprt __P((char *, int));
2843 extern bool strcontainedin __P((bool, char *, char *));
2844 extern int switch_map_find __P((char *, char *[], short []));
2846 extern void tls_set_verify __P((SSL_CTX *, SSL *, bool));
2848 extern bool transienterror __P((int));
2849 extern void truncate_at_delim __P((char *, size_t, int));
2850 extern void tTflag __P((char *));
2851 extern void tTsetup __P((unsigned char *, unsigned int, char *));
2852 extern SIGFUNC_DECL tick __P((int));
2853 extern char *ttypath __P((void));
2854 extern void unlockqueue __P((ENVELOPE *));
2856 extern void unsetenv __P((char *));
2859 /* update file system information: +/- some blocks */
2861 extern void upd_qs __P((ENVELOPE *, int, int, char *));
2862 # define updfs(e, count, space, where) upd_qs(e, count, space, where)
2863 #else /* SM_CONF_SHM */
2864 # define updfs(e, count, space, where)
2865 # define upd_qs(e, count, space, where)
2866 #endif /* SM_CONF_SHM */
2868 extern char *username __P((void));
2869 extern bool usershellok __P((char *, char *));
2870 extern void vendor_post_defaults __P((ENVELOPE *));
2871 extern void vendor_pre_defaults __P((ENVELOPE *));
2872 extern int waitfor __P((pid_t));
2873 extern bool writable __P((char *, ADDRESS *, long));
2875 # define xalloc(size) xalloc_tagged(size, __FILE__, __LINE__)
2876 extern char *xalloc_tagged __P((int, char *, int));
2878 extern char *xalloc __P((int));
2879 #endif /* SM_HEAP_CHECK */
2881 extern int xconnect __P((SM_FILE_T *));
2883 extern void xputs __P((SM_FILE_T *, const char *));
2884 extern char *xtextify __P((char *, char *));
2885 extern bool xtextok __P((char *));
2886 extern int xunlink __P((char *));
2887 extern char *xuntextify __P((char *));
2890 extern bool addr_is_ascii __P((const char *));
2894 extern bool newmodmailer __P((ADDRESS *, int));
2898 #endif /* ! _SENDMAIL_H */