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RCSID updates, warning fixes
[dfdiff.git] / contrib / sendmail-8.14 / sendmail / sendmail.h
blob82ab6a9d93120cfbfe709c9aa13924e84c8dcbb9
1 /*
2 * Copyright (c) 1998-2007 Sendmail, Inc. and its suppliers.
3 * All rights reserved.
4 * Copyright (c) 1983, 1995-1997 Eric P. Allman. All rights reserved.
5 * Copyright (c) 1988, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * By using this file, you agree to the terms and conditions set
9 * forth in the LICENSE file which can be found at the top level of
10 * the sendmail distribution.
11 */
12
13 /*
14 ** SENDMAIL.H -- MTA-specific definitions for sendmail.
15 */
16
17 #ifndef _SENDMAIL_H
18 # define _SENDMAIL_H 1
19
20 #ifndef MILTER
21 # define MILTER 1 /* turn on MILTER by default */
22 #endif /* MILTER */
23
24 #ifdef _DEFINE
25 # define EXTERN
26 #else /* _DEFINE */
27 # define EXTERN extern
28 #endif /* _DEFINE */
29
30
31 #include <unistd.h>
32
33 #include <stddef.h>
34 #include <stdlib.h>
35 #include <stdio.h>
36 #include <ctype.h>
37 #include <setjmp.h>
38 #include <string.h>
39 #include <time.h>
40 # ifdef EX_OK
41 # undef EX_OK /* for SVr4.2 SMP */
42 # endif /* EX_OK */
43
44 #include "sendmail/sendmail.h"
45
46 /* profiling? */
47 #if MONCONTROL
48 # define SM_PROF(x) moncontrol(x)
49 #else /* MONCONTROL */
50 # define SM_PROF(x)
51 #endif /* MONCONTROL */
52
53 #ifdef _DEFINE
54 # ifndef lint
55 SM_UNUSED(static char SmailId[]) = "@(#)$Id: sendmail.h,v 8.1052 2007/10/05 23:06:30 ca Exp $";
56 # endif /* ! lint */
57 #endif /* _DEFINE */
58
59 #include "bf.h"
60 #include "timers.h"
61 #include <sm/exc.h>
62 #include <sm/heap.h>
63 #include <sm/debug.h>
64 #include <sm/rpool.h>
65 #include <sm/io.h>
66 #include <sm/path.h>
67 #include <sm/signal.h>
68 #include <sm/clock.h>
69 #include <sm/mbdb.h>
70 #include <sm/errstring.h>
71 #include <sm/sysexits.h>
72 #include <sm/shm.h>
73 #include <sm/misc.h>
74
75 #ifdef LOG
76 # include <syslog.h>
77 #endif /* LOG */
78
79
80
81 # if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25
82 # include <sys/socket.h>
83 # endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */
84 # if NETUNIX
85 # include <sys/un.h>
86 # endif /* NETUNIX */
87 # if NETINET || NETINET6
88 # include <netinet/in.h>
89 # endif /* NETINET || NETINET6 */
90 # if NETINET6
91 /*
92 ** There is no standard yet for IPv6 includes.
93 ** Specify OS specific implementation in conf.h
94 */
95 # endif /* NETINET6 */
96 # if NETISO
97 # include <netiso/iso.h>
98 # endif /* NETISO */
99 # if NETNS
100 # include <netns/ns.h>
101 # endif /* NETNS */
102 # if NETX25
103 # include <netccitt/x25.h>
104 # endif /* NETX25 */
105
106 # if NAMED_BIND
107 # include <arpa/nameser.h>
108 # ifdef NOERROR
109 # undef NOERROR /* avoid <sys/streams.h> conflict */
110 # endif /* NOERROR */
111 # include <resolv.h>
112 # else /* NAMED_BIND */
113 # undef SM_SET_H_ERRNO
114 # define SM_SET_H_ERRNO(err)
115 # endif /* NAMED_BIND */
116
117 # if HESIOD
118 # include <hesiod.h>
119 # if !defined(HES_ER_OK) || defined(HESIOD_INTERFACES)
120 # define HESIOD_INIT /* support for the new interface */
121 # endif /* !defined(HES_ER_OK) || defined(HESIOD_INTERFACES) */
122 # endif /* HESIOD */
123
124 #if STARTTLS
125 # include <openssl/ssl.h>
126 # if !TLS_NO_RSA
127 # define RSA_KEYLENGTH 512
128 # endif /* !TLS_NO_RSA */
129 #endif /* STARTTLS */
130
131 #if SASL /* include the sasl include files if we have them */
132
133
134 # if SASL == 2 || SASL >= 20000
135 # include <sasl/sasl.h>
136 # include <sasl/saslutil.h>
137 # else /* SASL == 2 || SASL >= 20000 */
138 # include <sasl.h>
139 # include <saslutil.h>
140 # endif /* SASL == 2 || SASL >= 20000 */
141 # if defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP)
142 # define SASL_VERSION (SASL_VERSION_MAJOR * 10000) + (SASL_VERSION_MINOR * 100) + SASL_VERSION_STEP
143 # if SASL == 1 || SASL == 2
144 # undef SASL
145 # define SASL SASL_VERSION
146 # else /* SASL == 1 || SASL == 2 */
147 # if SASL != SASL_VERSION
148 ERROR README: -DSASL (SASL) does not agree with the version of the CYRUS_SASL library (SASL_VERSION)
149 ERROR README: see README!
150 # endif /* SASL != SASL_VERSION */
151 # endif /* SASL == 1 || SASL == 2 */
152 # else /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */
153 # if SASL == 1
154 ERROR README: please set -DSASL to the version of the CYRUS_SASL library
155 ERROR README: see README!
156 # endif /* SASL == 1 */
157 # endif /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */
158 #endif /* SASL */
159
160 /*
161 ** Following are "sort of" configuration constants, but they should
162 ** be pretty solid on most architectures today. They have to be
163 ** defined after <arpa/nameser.h> because some versions of that
164 ** file also define them. In all cases, we can't use sizeof because
165 ** some systems (e.g., Crays) always treat everything as being at
166 ** least 64 bits.
167 */
168
169 #ifndef INADDRSZ
170 # define INADDRSZ 4 /* size of an IPv4 address in bytes */
171 #endif /* ! INADDRSZ */
172 #ifndef IN6ADDRSZ
173 # define IN6ADDRSZ 16 /* size of an IPv6 address in bytes */
174 #endif /* ! IN6ADDRSZ */
175 #ifndef INT16SZ
176 # define INT16SZ 2 /* size of a 16 bit integer in bytes */
177 #endif /* ! INT16SZ */
178 #ifndef INT32SZ
179 # define INT32SZ 4 /* size of a 32 bit integer in bytes */
180 #endif /* ! INT32SZ */
181 #ifndef INADDR_LOOPBACK
182 # define INADDR_LOOPBACK 0x7f000001 /* loopback address */
183 #endif /* ! INADDR_LOOPBACK */
184
185 /*
186 ** Error return from inet_addr(3), in case not defined in /usr/include.
187 */
188
189 #ifndef INADDR_NONE
190 # define INADDR_NONE 0xffffffff
191 #endif /* ! INADDR_NONE */
192
193
194 /* (f)open() modes for queue files */
195 # define QF_O_EXTRA 0
196
197
198 /*
199 ** An 'argument class' describes the storage allocation status
200 ** of an object pointed to by an argument to a function.
201 */
202
203 typedef enum
204 {
205 A_HEAP, /* the storage was allocated by malloc, and the
206 * ownership of the storage is ceded by the caller
207 * to the called function. */
208 A_TEMP, /* The storage is temporary, and is only guaranteed
209 * to be valid for the duration of the function call. */
210 A_PERM /* The storage is 'permanent': this might mean static
211 * storage, or rpool storage. */
212 } ARGCLASS_T;
213
214 /* forward references for prototypes */
215 typedef struct envelope ENVELOPE;
216 typedef struct mailer MAILER;
217 typedef struct queuegrp QUEUEGRP;
218
219 /*
220 ** Address structure.
221 ** Addresses are stored internally in this structure.
222 */
223
224 struct address
225 {
226 char *q_paddr; /* the printname for the address */
227 char *q_user; /* user name */
228 char *q_ruser; /* real user name, or NULL if q_user */
229 char *q_host; /* host name */
230 struct mailer *q_mailer; /* mailer to use */
231 unsigned long q_flags; /* status flags, see below */
232 uid_t q_uid; /* user-id of receiver (if known) */
233 gid_t q_gid; /* group-id of receiver (if known) */
234 char *q_home; /* home dir (local mailer only) */
235 char *q_fullname; /* full name if known */
236 struct address *q_next; /* chain */
237 struct address *q_alias; /* address this results from */
238 char *q_owner; /* owner of q_alias */
239 struct address *q_tchain; /* temporary use chain */
240 #if PIPELINING
241 struct address *q_pchain; /* chain for pipelining */
242 #endif /* PIPELINING */
243 char *q_finalrcpt; /* Final-Recipient: DSN header */
244 char *q_orcpt; /* ORCPT parameter from RCPT TO: line */
245 char *q_status; /* status code for DSNs */
246 char *q_rstatus; /* remote status message for DSNs */
247 time_t q_statdate; /* date of status messages */
248 char *q_statmta; /* MTA generating q_rstatus */
249 short q_state; /* address state, see below */
250 char *q_signature; /* MX-based sorting value */
251 int q_qgrp; /* index into queue groups */
252 int q_qdir; /* queue directory inside group */
253 char *q_message; /* error message */
254 };
255
256 typedef struct address ADDRESS;
257
258 /* bit values for q_flags */
259 #define QGOODUID 0x00000001 /* the q_uid q_gid fields are good */
260 #define QPRIMARY 0x00000002 /* set from RCPT or argv */
261 #define QNOTREMOTE 0x00000004 /* address not for remote forwarding */
262 #define QSELFREF 0x00000008 /* this address references itself */
263 #define QBOGUSSHELL 0x00000010 /* user has no valid shell listed */
264 #define QUNSAFEADDR 0x00000020 /* address acquired via unsafe path */
265 #define QPINGONSUCCESS 0x00000040 /* give return on successful delivery */
266 #define QPINGONFAILURE 0x00000080 /* give return on failure */
267 #define QPINGONDELAY 0x00000100 /* give return on message delay */
268 #define QHASNOTIFY 0x00000200 /* propagate notify parameter */
269 #define QRELAYED 0x00000400 /* DSN: relayed to non-DSN aware sys */
270 #define QEXPANDED 0x00000800 /* DSN: undergone list expansion */
271 #define QDELIVERED 0x00001000 /* DSN: successful final delivery */
272 #define QDELAYED 0x00002000 /* DSN: message delayed */
273 #define QALIAS 0x00004000 /* expanded alias */
274 #define QBYTRACE 0x00008000 /* DeliverBy: trace */
275 #define QBYNDELAY 0x00010000 /* DeliverBy: notify, delay */
276 #define QBYNRELAY 0x00020000 /* DeliverBy: notify, relayed */
277 #define QTHISPASS 0x40000000 /* temp: address set this pass */
278 #define QRCPTOK 0x80000000 /* recipient() processed address */
279
280 #define Q_PINGFLAGS (QPINGONSUCCESS|QPINGONFAILURE|QPINGONDELAY)
281
282 /* values for q_state */
283 #define QS_OK 0 /* address ok (for now)/not yet tried */
284 #define QS_SENT 1 /* good address, delivery complete */
285 #define QS_BADADDR 2 /* illegal address */
286 #define QS_QUEUEUP 3 /* save address in queue */
287 #define QS_RETRY 4 /* retry delivery for next MX */
288 #define QS_VERIFIED 5 /* verified, but not expanded */
289
290 /*
291 ** Notice: all of the following values are variations of QS_DONTSEND.
292 ** If new states are added, they must be inserted in the proper place!
293 ** See the macro definition of QS_IS_DEAD() down below.
294 */
295
296 #define QS_DONTSEND 6 /* don't send to this address */
297 #define QS_EXPANDED 7 /* expanded */
298 #define QS_SENDER 8 /* message sender (MeToo) */
299 #define QS_CLONED 9 /* addr cloned to split envelope */
300 #define QS_DISCARDED 10 /* rcpt discarded (EF_DISCARD) */
301 #define QS_REPLACED 11 /* maplocaluser()/UserDB replaced */
302 #define QS_REMOVED 12 /* removed (removefromlist()) */
303 #define QS_DUPLICATE 13 /* duplicate suppressed */
304 #define QS_INCLUDED 14 /* :include: delivery */
305 #define QS_FATALERR 15 /* fatal error, don't deliver */
306
307 /* address state testing primitives */
308 #define QS_IS_OK(s) ((s) == QS_OK)
309 #define QS_IS_SENT(s) ((s) == QS_SENT)
310 #define QS_IS_BADADDR(s) ((s) == QS_BADADDR)
311 #define QS_IS_QUEUEUP(s) ((s) == QS_QUEUEUP)
312 #define QS_IS_RETRY(s) ((s) == QS_RETRY)
313 #define QS_IS_VERIFIED(s) ((s) == QS_VERIFIED)
314 #define QS_IS_EXPANDED(s) ((s) == QS_EXPANDED)
315 #define QS_IS_REMOVED(s) ((s) == QS_REMOVED)
316 #define QS_IS_UNDELIVERED(s) ((s) == QS_OK || \
317 (s) == QS_QUEUEUP || \
318 (s) == QS_RETRY || \
319 (s) == QS_VERIFIED)
320 #define QS_IS_UNMARKED(s) ((s) == QS_OK || \
321 (s) == QS_RETRY)
322 #define QS_IS_SENDABLE(s) ((s) == QS_OK || \
323 (s) == QS_QUEUEUP || \
324 (s) == QS_RETRY)
325 #define QS_IS_ATTEMPTED(s) ((s) == QS_QUEUEUP || \
326 (s) == QS_RETRY || \
327 (s) == QS_SENT || \
328 (s) == QS_DISCARDED)
329 #define QS_IS_DEAD(s) ((s) >= QS_DONTSEND)
330
331
332 #define NULLADDR ((ADDRESS *) NULL)
333
334 extern ADDRESS NullAddress; /* a null (template) address [main.c] */
335
336 /* functions */
337 extern void cataddr __P((char **, char **, char *, int, int, bool));
338 extern char *crackaddr __P((char *, ENVELOPE *));
339 extern bool emptyaddr __P((ADDRESS *));
340 extern ADDRESS *getctladdr __P((ADDRESS *));
341 extern int include __P((char *, bool, ADDRESS *, ADDRESS **, int, ENVELOPE *));
342 extern bool invalidaddr __P((char *, char *, bool));
343 extern ADDRESS *parseaddr __P((char *, ADDRESS *, int, int, char **,
344 ENVELOPE *, bool));
345 extern char **prescan __P((char *, int, char[], int, char **, unsigned char *, bool));
346 extern void printaddr __P((SM_FILE_T *, ADDRESS *, bool));
347 extern ADDRESS *recipient __P((ADDRESS *, ADDRESS **, int, ENVELOPE *));
348 extern char *remotename __P((char *, MAILER *, int, int *, ENVELOPE *));
349 extern int rewrite __P((char **, int, int, ENVELOPE *, int));
350 extern bool sameaddr __P((ADDRESS *, ADDRESS *));
351 extern int sendtolist __P((char *, ADDRESS *, ADDRESS **, int, ENVELOPE *));
352 #if MILTER
353 extern int removefromlist __P((char *, ADDRESS **, ENVELOPE *));
354 #endif /* MILTER */
355 extern void setsender __P((char *, ENVELOPE *, char **, int, bool));
356 typedef void esmtp_args_F __P((ADDRESS *, char *, char *, ENVELOPE *));
357 extern void parse_esmtp_args __P((ENVELOPE *, ADDRESS *, char *, char *,
358 char *, char *args[], esmtp_args_F));
359 extern esmtp_args_F mail_esmtp_args;
360 extern esmtp_args_F rcpt_esmtp_args;
361 extern void reset_mail_esmtp_args __P((ENVELOPE *));
362
363 /* macro to simplify the common call to rewrite() */
364 #define REWRITE(pvp, rs, env) rewrite(pvp, rs, 0, env, MAXATOM)
365
366 /*
367 ** Token Tables for prescan
368 */
369
370 extern unsigned char ExtTokenTab[256]; /* external strings */
371 extern unsigned char IntTokenTab[256]; /* internal strings */
372
373
374 /*
375 ** Mailer definition structure.
376 ** Every mailer known to the system is declared in this
377 ** structure. It defines the pathname of the mailer, some
378 ** flags associated with it, and the argument vector to
379 ** pass to it. The flags are defined in conf.c
380 **
381 ** The argument vector is expanded before actual use. All
382 ** words except the first are passed through the macro
383 ** processor.
384 */
385
386 struct mailer
387 {
388 char *m_name; /* symbolic name of this mailer */
389 char *m_mailer; /* pathname of the mailer to use */
390 char *m_mtatype; /* type of this MTA */
391 char *m_addrtype; /* type for addresses */
392 char *m_diagtype; /* type for diagnostics */
393 BITMAP256 m_flags; /* status flags, see below */
394 short m_mno; /* mailer number internally */
395 short m_nice; /* niceness to run at (mostly for prog) */
396 char **m_argv; /* template argument vector */
397 short m_sh_rwset; /* rewrite set: sender header addresses */
398 short m_se_rwset; /* rewrite set: sender envelope addresses */
399 short m_rh_rwset; /* rewrite set: recipient header addresses */
400 short m_re_rwset; /* rewrite set: recipient envelope addresses */
401 char *m_eol; /* end of line string */
402 long m_maxsize; /* size limit on message to this mailer */
403 int m_linelimit; /* max # characters per line */
404 int m_maxdeliveries; /* max deliveries per mailer connection */
405 char *m_execdir; /* directory to chdir to before execv */
406 char *m_rootdir; /* directory to chroot to before execv */
407 uid_t m_uid; /* UID to run as */
408 gid_t m_gid; /* GID to run as */
409 char *m_defcharset; /* default character set */
410 time_t m_wait; /* timeout to wait for end */
411 int m_maxrcpt; /* max recipients per envelope client-side */
412 short m_qgrp; /* queue group for this mailer */
413 };
414
415 /* bits for m_flags */
416 #define M_ESMTP 'a' /* run Extended SMTP */
417 #define M_ALIASABLE 'A' /* user can be LHS of an alias */
418 #define M_BLANKEND 'b' /* ensure blank line at end of message */
419 #define M_STRIPBACKSL 'B' /* strip all leading backslashes from user */
420 #define M_NOCOMMENT 'c' /* don't include comment part of address */
421 #define M_CANONICAL 'C' /* make addresses canonical "u@dom" */
422 #define M_NOBRACKET 'd' /* never angle bracket envelope route-addrs */
423 /* 'D' CF: include Date: */
424 #define M_EXPENSIVE 'e' /* it costs to use this mailer.... */
425 #define M_ESCFROM 'E' /* escape From lines to >From */
426 #define M_FOPT 'f' /* mailer takes picky -f flag */
427 /* 'F' CF: include From: or Resent-From: */
428 #define M_NO_NULL_FROM 'g' /* sender of errors should be $g */
429 #define M_HST_UPPER 'h' /* preserve host case distinction */
430 #define M_PREHEAD 'H' /* MAIL11V3: preview headers */
431 #define M_UDBENVELOPE 'i' /* do udbsender rewriting on envelope */
432 #define M_INTERNAL 'I' /* SMTP to another sendmail site */
433 #define M_UDBRECIPIENT 'j' /* do udbsender rewriting on recipient lines */
434 #define M_NOLOOPCHECK 'k' /* don't check for loops in HELO command */
435 #define M_CHUNKING 'K' /* CHUNKING: reserved for future use */
436 #define M_LOCALMAILER 'l' /* delivery is to this host */
437 #define M_LIMITS 'L' /* must enforce SMTP line limits */
438 #define M_MUSER 'm' /* can handle multiple users at once */
439 /* 'M' CF: include Message-Id: */
440 #define M_NHDR 'n' /* don't insert From line */
441 #define M_MANYSTATUS 'N' /* MAIL11V3: DATA returns multi-status */
442 #define M_RUNASRCPT 'o' /* always run mailer as recipient */
443 #define M_FROMPATH 'p' /* use reverse-path in MAIL FROM: */
444 /* 'P' CF: include Return-Path: */
445 #define M_VRFY250 'q' /* VRFY command returns 250 instead of 252 */
446 #define M_ROPT 'r' /* mailer takes picky -r flag */
447 #define M_SECURE_PORT 'R' /* try to send on a reserved TCP port */
448 #define M_STRIPQ 's' /* strip quote chars from user/host */
449 #define M_SPECIFIC_UID 'S' /* run as specific uid/gid */
450 #define M_USR_UPPER 'u' /* preserve user case distinction */
451 #define M_UGLYUUCP 'U' /* this wants an ugly UUCP from line */
452 #define M_CONTENT_LEN 'v' /* add Content-Length: header (SVr4) */
453 /* 'V' UIUC: !-relativize all addresses */
454 #define M_HASPWENT 'w' /* check for /etc/passwd entry */
455 #define M_NOHOSTSTAT 'W' /* ignore long term host status information */
456 /* 'x' CF: include Full-Name: */
457 #define M_XDOT 'X' /* use hidden-dot algorithm */
458 #define M_LMTP 'z' /* run Local Mail Transport Protocol */
459 #define M_DIALDELAY 'Z' /* apply dial delay sleeptime */
460 #define M_NOMX '0' /* turn off MX lookups */
461 #define M_NONULLS '1' /* don't send null bytes */
462 #define M_FSMTP '2' /* force SMTP (no ESMTP even if offered) */
463 #define M_EBCDIC '3' /* extend Q-P encoding for EBCDIC */
464 #define M_TRYRULESET5 '5' /* use ruleset 5 after local aliasing */
465 #define M_7BITHDRS '6' /* strip headers to 7 bits even in 8 bit path */
466 #define M_7BITS '7' /* use 7-bit path */
467 #define M_8BITS '8' /* force "just send 8" behaviour */
468 #define M_MAKE8BIT '9' /* convert 7 -> 8 bit if appropriate */
469 #define M_CHECKINCLUDE ':' /* check for :include: files */
470 #define M_CHECKPROG '|' /* check for |program addresses */
471 #define M_CHECKFILE '/' /* check for /file addresses */
472 #define M_CHECKUDB '@' /* user can be user database key */
473 #define M_CHECKHDIR '~' /* SGI: check for valid home directory */
474 #define M_HOLD '%' /* Hold delivery until ETRN/-qI/-qR/-qS */
475 #define M_PLUS '+' /* Reserved: Used in mc for adding new flags */
476 #define M_MINUS '-' /* Reserved: Used in mc for removing flags */
477
478 /* functions */
479 extern void initerrmailers __P((void));
480 extern void makemailer __P((char *));
481 extern void makequeue __P((char *, bool));
482 extern void runqueueevent __P((int));
483 #if _FFR_QUEUE_RUN_PARANOIA
484 extern bool checkqueuerunner __P((void));
485 #endif /* _FFR_QUEUE_RUN_PARANOIA */
486
487 EXTERN MAILER *FileMailer; /* ptr to *file* mailer */
488 EXTERN MAILER *InclMailer; /* ptr to *include* mailer */
489 EXTERN MAILER *LocalMailer; /* ptr to local mailer */
490 EXTERN MAILER *ProgMailer; /* ptr to program mailer */
491 EXTERN MAILER *Mailer[MAXMAILERS + 1];
492
493 /*
494 ** Queue group definition structure.
495 ** Every queue group known to the system is declared in this structure.
496 ** It defines the basic pathname of the queue group, some flags
497 ** associated with it, and the argument vector to pass to it.
498 */
499
500 struct qpaths_s
501 {
502 char *qp_name; /* name of queue dir, relative path */
503 short qp_subdirs; /* use subdirs? */
504 short qp_fsysidx; /* file system index of this directory */
505 # if SM_CONF_SHM
506 int qp_idx; /* index into array for queue information */
507 # endif /* SM_CONF_SHM */
508 };
509
510 typedef struct qpaths_s QPATHS;
511
512 struct queuegrp
513 {
514 char *qg_name; /* symbolic name of this queue group */
515
516 /*
517 ** For now this is the same across all queue groups.
518 ** Otherwise we have to play around with chdir().
519 */
520
521 char *qg_qdir; /* common component of queue directory */
522 short qg_index; /* queue number internally, index in Queue[] */
523 int qg_maxqrun; /* max # of jobs in 1 queuerun */
524 int qg_numqueues; /* number of queues in this queue */
525
526 /*
527 ** qg_queueintvl == 0 denotes that no individual value is used.
528 ** Whatever accesses this must deal with "<= 0" as
529 ** "not set, use appropriate default".
530 */
531
532 time_t qg_queueintvl; /* interval for queue runs */
533 QPATHS *qg_qpaths; /* list of queue directories */
534 BITMAP256 qg_flags; /* status flags, see below */
535 short qg_nice; /* niceness for queue run */
536 int qg_wgrp; /* Assigned to this work group */
537 int qg_maxlist; /* max items in work queue for this group */
538 int qg_curnum; /* current number of queue for queue runs */
539 int qg_maxrcpt; /* max recipients per envelope, 0==no limit */
540
541 time_t qg_nextrun; /* time for next queue runs */
542 #if _FFR_QUEUE_GROUP_SORTORDER
543 short qg_sortorder; /* how do we sort this queuerun */
544 #endif /* _FFR_QUEUE_GROUP_SORTORDER */
545 #if 0
546 long qg_wkrcptfact; /* multiplier for # recipients -> priority */
547 long qg_qfactor; /* slope of queue function */
548 bool qg_doqueuerun; /* XXX flag is it time to do a queuerun */
549 #endif /* 0 */
550 };
551
552 /* bits for qg_flags (XXX: unused as of now) */
553 #define QD_DEFINED ((char) 1) /* queue group has been defined */
554 #define QD_FORK 'f' /* fork queue runs */
555
556 extern void filesys_update __P((void));
557 #if _FFR_ANY_FREE_FS
558 extern bool filesys_free __P((long));
559 #endif /* _FFR_ANY_FREE_FS */
560
561 #if SASL
562 /*
563 ** SASL
564 */
565
566 /* lines in authinfo file or index into SASL_AI_T */
567 # define SASL_WRONG (-1)
568 # define SASL_USER 0 /* authorization id (user) */
569 # define SASL_AUTHID 1 /* authentication id */
570 # define SASL_PASSWORD 2 /* password fuer authid */
571 # define SASL_DEFREALM 3 /* realm to use */
572 # define SASL_MECHLIST 4 /* list of mechanisms to try */
573 # define SASL_ID_REALM 5 /* authid@defrealm */
574
575 /*
576 ** Current mechanism; this is just used to convey information between
577 ** invocation of SASL callback functions.
578 ** It must be last in the list, because it's not allocated by us
579 ** and hence we don't free() it.
580 */
581 # define SASL_MECH 6
582 # define SASL_ENTRIES 7 /* number of entries in array */
583
584 # define SASL_USER_BIT (1 << SASL_USER)
585 # define SASL_AUTHID_BIT (1 << SASL_AUTHID)
586 # define SASL_PASSWORD_BIT (1 << SASL_PASSWORD)
587 # define SASL_DEFREALM_BIT (1 << SASL_DEFREALM)
588 # define SASL_MECHLIST_BIT (1 << SASL_MECHLIST)
589
590 /* authenticated? */
591 # define SASL_NOT_AUTH 0 /* not authenticated */
592 # define SASL_PROC_AUTH 1 /* in process of authenticating */
593 # define SASL_IS_AUTH 2 /* authenticated */
594
595 /* SASL options */
596 # define SASL_AUTH_AUTH 0x1000 /* use auth= only if authenticated */
597 # if SASL >= 20101
598 # define SASL_SEC_MASK SASL_SEC_MAXIMUM /* mask for SASL_SEC_* values: sasl.h */
599 # else /* SASL >= 20101 */
600 # define SASL_SEC_MASK 0x0fff /* mask for SASL_SEC_* values: sasl.h */
601 # if (SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 || \
602 (SASL_SEC_NOACTIVE & SASL_SEC_MASK) == 0 || \
603 (SASL_SEC_NODICTIONARY & SASL_SEC_MASK) == 0 || \
604 (SASL_SEC_FORWARD_SECRECY & SASL_SEC_MASK) == 0 || \
605 (SASL_SEC_NOANONYMOUS & SASL_SEC_MASK) == 0 || \
606 (SASL_SEC_PASS_CREDENTIALS & SASL_SEC_MASK) == 0
607 ERROR: change SASL_SEC_MASK_ notify sendmail.org!
608 # endif /* SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 ... */
609 # endif /* SASL >= 20101 */
610 # define MAXOUTLEN 8192 /* length of output buffer */
611
612 /* functions */
613 extern char *intersect __P((char *, char *, SM_RPOOL_T *));
614 extern char *iteminlist __P((char *, char *, char *));
615 # if SASL >= 20000
616 extern int proxy_policy __P((sasl_conn_t *, void *, const char *, unsigned, const char *, unsigned, const char *, unsigned, struct propctx *));
617 extern int safesaslfile __P((void *, const char *, sasl_verify_type_t));
618 # else /* SASL >= 20000 */
619 extern int proxy_policy __P((void *, const char *, const char *, const char **, const char **));
620 # if SASL > 10515
621 extern int safesaslfile __P((void *, char *, int));
622 # else /* SASL > 10515 */
623 extern int safesaslfile __P((void *, char *));
624 # endif /* SASL > 10515 */
625 # endif /* SASL >= 20000 */
626 extern void stop_sasl_client __P((void));
627
628 /* structure to store authinfo */
629 typedef char *SASL_AI_T[SASL_ENTRIES];
630
631 EXTERN char *AuthMechanisms; /* AUTH mechanisms */
632 EXTERN char *AuthRealm; /* AUTH realm */
633 EXTERN char *SASLInfo; /* file with AUTH info */
634 EXTERN int SASLOpts; /* options for SASL */
635 EXTERN int MaxSLBits; /* max. encryption bits for SASL */
636 #endif /* SASL */
637
638 /*
639 ** Structure to store macros.
640 */
641 typedef struct
642 {
643 SM_RPOOL_T *mac_rpool; /* resource pool */
644 BITMAP256 mac_allocated; /* storage has been alloc()? */
645 char *mac_table[MAXMACROID + 1]; /* macros */
646 } MACROS_T;
647
648 EXTERN MACROS_T GlobalMacros;
649
650 /*
651 ** Information about currently open connections to mailers, or to
652 ** hosts that we have looked up recently.
653 */
654
655 #define MCI struct mailer_con_info
656
657 MCI
658 {
659 unsigned long mci_flags; /* flag bits, see below */
660 short mci_errno; /* error number on last connection */
661 short mci_herrno; /* h_errno from last DNS lookup */
662 short mci_exitstat; /* exit status from last connection */
663 short mci_state; /* SMTP state */
664 int mci_deliveries; /* delivery attempts for connection */
665 long mci_maxsize; /* max size this server will accept */
666 SM_FILE_T *mci_in; /* input side of connection */
667 SM_FILE_T *mci_out; /* output side of connection */
668 pid_t mci_pid; /* process id of subordinate proc */
669 char *mci_phase; /* SMTP phase string */
670 struct mailer *mci_mailer; /* ptr to the mailer for this conn */
671 char *mci_host; /* host name */
672 char *mci_status; /* DSN status to be copied to addrs */
673 char *mci_rstatus; /* SMTP status to be copied to addrs */
674 time_t mci_lastuse; /* last usage time */
675 SM_FILE_T *mci_statfile; /* long term status file */
676 char *mci_heloname; /* name to use as HELO arg */
677 long mci_min_by; /* minimum DELIVERBY */
678 bool mci_retryrcpt; /* tempfail for at least one rcpt */
679 char *mci_tolist; /* list of valid recipients */
680 SM_RPOOL_T *mci_rpool; /* resource pool */
681 #if PIPELINING
682 int mci_okrcpts; /* number of valid recipients */
683 ADDRESS *mci_nextaddr; /* next address for pipelined status */
684 #endif /* PIPELINING */
685 #if SASL
686 SASL_AI_T mci_sai; /* authentication info */
687 bool mci_sasl_auth; /* authenticated? */
688 int mci_sasl_string_len;
689 char *mci_sasl_string; /* sasl reply string */
690 char *mci_saslcap; /* SASL list of mechanisms */
691 sasl_conn_t *mci_conn; /* SASL connection */
692 #endif /* SASL */
693 #if STARTTLS
694 SSL *mci_ssl; /* SSL connection */
695 #endif /* STARTTLS */
696 MACROS_T mci_macro; /* macro definitions */
697 };
698
699
700 /* flag bits */
701 #define MCIF_VALID 0x00000001 /* this entry is valid */
702 /* 0x00000002 unused, was MCIF_TEMP */
703 #define MCIF_CACHED 0x00000004 /* currently in open cache */
704 #define MCIF_ESMTP 0x00000008 /* this host speaks ESMTP */
705 #define MCIF_EXPN 0x00000010 /* EXPN command supported */
706 #define MCIF_SIZE 0x00000020 /* SIZE option supported */
707 #define MCIF_8BITMIME 0x00000040 /* BODY=8BITMIME supported */
708 #define MCIF_7BIT 0x00000080 /* strip this message to 7 bits */
709 /* 0x00000100 unused, was MCIF_MULTSTAT: MAIL11V3: handles MULT status */
710 #define MCIF_INHEADER 0x00000200 /* currently outputing header */
711 #define MCIF_CVT8TO7 0x00000400 /* convert from 8 to 7 bits */
712 #define MCIF_DSN 0x00000800 /* DSN extension supported */
713 #define MCIF_8BITOK 0x00001000 /* OK to send 8 bit characters */
714 #define MCIF_CVT7TO8 0x00002000 /* convert from 7 to 8 bits */
715 #define MCIF_INMIME 0x00004000 /* currently reading MIME header */
716 #define MCIF_AUTH 0x00008000 /* AUTH= supported */
717 #define MCIF_AUTHACT 0x00010000 /* SASL (AUTH) active */
718 #define MCIF_ENHSTAT 0x00020000 /* ENHANCEDSTATUSCODES supported */
719 #define MCIF_PIPELINED 0x00040000 /* PIPELINING supported */
720 #define MCIF_VERB 0x00080000 /* VERB supported */
721 #if STARTTLS
722 #define MCIF_TLS 0x00100000 /* STARTTLS supported */
723 #define MCIF_TLSACT 0x00200000 /* STARTTLS active */
724 #define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT | MCIF_TLS)
725 #else /* STARTTLS */
726 #define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT)
727 #endif /* STARTTLS */
728 #define MCIF_DLVR_BY 0x00400000 /* DELIVERBY */
729 #if _FFR_IGNORE_EXT_ON_HELO
730 # define MCIF_HELO 0x00800000 /* we used HELO: ignore extensions */
731 #endif /* _FFR_IGNORE_EXT_ON_HELO */
732 #define MCIF_INLONGLINE 0x01000000 /* in the middle of a long line */
733 #define MCIF_ONLY_EHLO 0x10000000 /* use only EHLO in smtpinit */
734
735 /* states */
736 #define MCIS_CLOSED 0 /* no traffic on this connection */
737 #define MCIS_OPENING 1 /* sending initial protocol */
738 #define MCIS_OPEN 2 /* open, initial protocol sent */
739 #define MCIS_MAIL 3 /* MAIL command sent */
740 #define MCIS_RCPT 4 /* RCPT commands being sent */
741 #define MCIS_DATA 5 /* DATA command sent */
742 #define MCIS_QUITING 6 /* running quit protocol */
743 #define MCIS_SSD 7 /* service shutting down */
744 #define MCIS_ERROR 8 /* I/O error on connection */
745
746 /* functions */
747 extern void mci_cache __P((MCI *));
748 extern void mci_close __P((MCI *, char *where));
749 extern void mci_dump __P((SM_FILE_T *, MCI *, bool));
750 extern void mci_dump_all __P((SM_FILE_T *, bool));
751 extern void mci_flush __P((bool, MCI *));
752 extern MCI *mci_get __P((char *, MAILER *));
753 extern int mci_lock_host __P((MCI *));
754 extern bool mci_match __P((char *, MAILER *));
755 extern int mci_print_persistent __P((char *, char *));
756 extern int mci_purge_persistent __P((char *, char *));
757 extern MCI **mci_scan __P((MCI *));
758 extern void mci_setstat __P((MCI *, int, char *, char *));
759 extern void mci_store_persistent __P((MCI *));
760 extern int mci_traverse_persistent __P((int (*)(char *, char *), char *));
761 extern void mci_unlock_host __P((MCI *));
762
763 EXTERN int MaxMciCache; /* maximum entries in MCI cache */
764 EXTERN time_t MciCacheTimeout; /* maximum idle time on connections */
765 EXTERN time_t MciInfoTimeout; /* how long 'til we retry down hosts */
766
767 /*
768 ** Header structure.
769 ** This structure is used internally to store header items.
770 */
771
772 struct header
773 {
774 char *h_field; /* the name of the field */
775 char *h_value; /* the value of that field */
776 struct header *h_link; /* the next header */
777 unsigned char h_macro; /* include header if macro defined */
778 unsigned long h_flags; /* status bits, see below */
779 BITMAP256 h_mflags; /* m_flags bits needed */
780 };
781
782 typedef struct header HDR;
783
784 /*
785 ** Header information structure.
786 ** Defined in conf.c, this struct declares the header fields
787 ** that have some magic meaning.
788 */
789
790 struct hdrinfo
791 {
792 char *hi_field; /* the name of the field */
793 unsigned long hi_flags; /* status bits, see below */
794 char *hi_ruleset; /* validity check ruleset */
795 };
796
797 extern struct hdrinfo HdrInfo[];
798
799 /* bits for h_flags and hi_flags */
800 #define H_EOH 0x00000001 /* field terminates header */
801 #define H_RCPT 0x00000002 /* contains recipient addresses */
802 #define H_DEFAULT 0x00000004 /* if another value is found, drop this */
803 #define H_RESENT 0x00000008 /* this address is a "Resent-..." address */
804 #define H_CHECK 0x00000010 /* check h_mflags against m_flags */
805 #define H_ACHECK 0x00000020 /* ditto, but always (not just default) */
806 #define H_FORCE 0x00000040 /* force this field, even if default */
807 #define H_TRACE 0x00000080 /* this field contains trace information */
808 #define H_FROM 0x00000100 /* this is a from-type field */
809 #define H_VALID 0x00000200 /* this field has a validated value */
810 #define H_RECEIPTTO 0x00000400 /* field has return receipt info */
811 #define H_ERRORSTO 0x00000800 /* field has error address info */
812 #define H_CTE 0x00001000 /* field is a content-transfer-encoding */
813 #define H_CTYPE 0x00002000 /* this is a content-type field */
814 #define H_BCC 0x00004000 /* Bcc: header: strip value or delete */
815 #define H_ENCODABLE 0x00008000 /* field can be RFC 1522 encoded */
816 #define H_STRIPCOMM 0x00010000 /* header check: strip comments */
817 #define H_BINDLATE 0x00020000 /* only expand macros at deliver */
818 #define H_USER 0x00040000 /* header came from the user/SMTP */
819
820 /* bits for chompheader() */
821 #define CHHDR_DEF 0x0001 /* default header */
822 #define CHHDR_CHECK 0x0002 /* call ruleset for header */
823 #define CHHDR_USER 0x0004 /* header from user */
824 #define CHHDR_QUEUE 0x0008 /* header from queue file */
825
826 /* functions */
827 extern void addheader __P((char *, char *, int, ENVELOPE *, bool));
828 extern unsigned long chompheader __P((char *, int, HDR **, ENVELOPE *));
829 extern bool commaize __P((HDR *, char *, bool, MCI *, ENVELOPE *, int));
830 extern HDR *copyheader __P((HDR *, SM_RPOOL_T *));
831 extern void eatheader __P((ENVELOPE *, bool, bool));
832 extern char *hvalue __P((char *, HDR *));
833 extern void insheader __P((int, char *, char *, int, ENVELOPE *, bool));
834 extern bool isheader __P((char *));
835 extern bool putfromline __P((MCI *, ENVELOPE *));
836 extern void setupheaders __P((void));
837
838 /*
839 ** Performance monitoring
840 */
841
842 #define TIMERS struct sm_timers
843
844 TIMERS
845 {
846 TIMER ti_overall; /* the whole process */
847 };
848
849
850 #define PUSHTIMER(l, t) { if (tTd(98, l)) pushtimer(&t); }
851 #define POPTIMER(l, t) { if (tTd(98, l)) poptimer(&t); }
852
853 /*
854 ** Envelope structure.
855 ** This structure defines the message itself. There is usually
856 ** only one of these -- for the message that we originally read
857 ** and which is our primary interest -- but other envelopes can
858 ** be generated during processing. For example, error messages
859 ** will have their own envelope.
860 */
861
862 struct envelope
863 {
864 HDR *e_header; /* head of header list */
865 long e_msgpriority; /* adjusted priority of this message */
866 time_t e_ctime; /* time message appeared in the queue */
867 char *e_to; /* (list of) target person(s) */
868 ADDRESS e_from; /* the person it is from */
869 char *e_sender; /* e_from.q_paddr w comments stripped */
870 char **e_fromdomain; /* the domain part of the sender */
871 ADDRESS *e_sendqueue; /* list of message recipients */
872 ADDRESS *e_errorqueue; /* the queue for error responses */
873
874 /*
875 ** Overflow detection is based on < 0, so don't change this
876 ** to unsigned. We don't use unsigned and == ULONG_MAX because
877 ** some libc's don't have strtoul(), see mail_esmtp_args().
878 */
879
880 long e_msgsize; /* size of the message in bytes */
881 char *e_msgid; /* message id (for logging) */
882 unsigned long e_flags; /* flags, see below */
883 int e_nrcpts; /* number of recipients */
884 short e_class; /* msg class (priority, junk, etc.) */
885 short e_hopcount; /* number of times processed */
886 short e_nsent; /* number of sends since checkpoint */
887 short e_sendmode; /* message send mode */
888 short e_errormode; /* error return mode */
889 short e_timeoutclass; /* message timeout class */
890 bool (*e_puthdr)__P((MCI *, HDR *, ENVELOPE *, int));
891 /* function to put header of message */
892 bool (*e_putbody)__P((MCI *, ENVELOPE *, char *));
893 /* function to put body of message */
894 ENVELOPE *e_parent; /* the message this one encloses */
895 ENVELOPE *e_sibling; /* the next envelope of interest */
896 char *e_bodytype; /* type of message body */
897 SM_FILE_T *e_dfp; /* data file */
898 char *e_id; /* code for this entry in queue */
899 #if _FFR_SESSID
900 char *e_sessid; /* session ID for this envelope */
901 #endif /* _FFR_SESSID */
902 int e_qgrp; /* queue group (index into queues) */
903 int e_qdir; /* index into queue directories */
904 int e_dfqgrp; /* data file queue group index */
905 int e_dfqdir; /* data file queue directory index */
906 int e_xfqgrp; /* queue group (index into queues) */
907 int e_xfqdir; /* index into queue directories (xf) */
908 SM_FILE_T *e_xfp; /* transcript file */
909 SM_FILE_T *e_lockfp; /* the lock file for this message */
910 char *e_message; /* error message; readonly; NULL,
911 * or allocated from e_rpool */
912 char *e_statmsg; /* stat msg (changes per delivery).
913 * readonly. NULL or allocated from
914 * e_rpool. */
915 char *e_quarmsg; /* why envelope is quarantined */
916 char e_qfletter; /* queue file letter on disk */
917 char *e_msgboundary; /* MIME-style message part boundary */
918 char *e_origrcpt; /* original recipient (one only) */
919 char *e_envid; /* envelope id from MAIL FROM: line */
920 char *e_status; /* DSN status for this message */
921 time_t e_dtime; /* time of last delivery attempt */
922 int e_ntries; /* number of delivery attempts */
923 dev_t e_dfdev; /* data file device (crash recovery) */
924 ino_t e_dfino; /* data file inode (crash recovery) */
925 MACROS_T e_macro; /* macro definitions */
926 MCI *e_mci; /* connection info */
927 char *e_auth_param; /* readonly; NULL or static storage or
928 * allocated from e_rpool */
929 TIMERS e_timers; /* per job timers */
930 long e_deliver_by; /* deliver by */
931 int e_dlvr_flag; /* deliver by flag */
932 SM_RPOOL_T *e_rpool; /* resource pool for this envelope */
933 unsigned int e_features; /* server features */
934 };
935
936 /* values for e_flags */
937 #define EF_OLDSTYLE 0x00000001L /* use spaces (not commas) in hdrs */
938 #define EF_INQUEUE 0x00000002L /* this message is fully queued */
939 #define EF_NO_BODY_RETN 0x00000004L /* omit message body on error */
940 #define EF_CLRQUEUE 0x00000008L /* disk copy is no longer needed */
941 #define EF_SENDRECEIPT 0x00000010L /* send a return receipt */
942 #define EF_FATALERRS 0x00000020L /* fatal errors occurred */
943 #define EF_DELETE_BCC 0x00000040L /* delete Bcc: headers entirely */
944 #define EF_RESPONSE 0x00000080L /* this is an error or return receipt */
945 #define EF_RESENT 0x00000100L /* this message is being forwarded */
946 #define EF_VRFYONLY 0x00000200L /* verify only (don't expand aliases) */
947 #define EF_WARNING 0x00000400L /* warning message has been sent */
948 #define EF_QUEUERUN 0x00000800L /* this envelope is from queue */
949 #define EF_GLOBALERRS 0x00001000L /* treat errors as global */
950 #define EF_PM_NOTIFY 0x00002000L /* send return mail to postmaster */
951 #define EF_METOO 0x00004000L /* send to me too */
952 #define EF_LOGSENDER 0x00008000L /* need to log the sender */
953 #define EF_NORECEIPT 0x00010000L /* suppress all return-receipts */
954 #define EF_HAS8BIT 0x00020000L /* at least one 8-bit char in body */
955 #define EF_NL_NOT_EOL 0x00040000L /* don't accept raw NL as EOLine */
956 #define EF_CRLF_NOT_EOL 0x00080000L /* don't accept CR-LF as EOLine */
957 #define EF_RET_PARAM 0x00100000L /* RCPT command had RET argument */
958 #define EF_HAS_DF 0x00200000L /* set when data file is instantiated */
959 #define EF_IS_MIME 0x00400000L /* really is a MIME message */
960 #define EF_DONT_MIME 0x00800000L /* never MIME this message */
961 #define EF_DISCARD 0x01000000L /* discard the message */
962 #define EF_TOOBIG 0x02000000L /* message is too big */
963 #define EF_SPLIT 0x04000000L /* envelope has been split */
964 #define EF_UNSAFE 0x08000000L /* unsafe: read from untrusted source */
965 #define EF_TOODEEP 0x10000000L /* message is nested too deep */
966
967 #define DLVR_NOTIFY 0x01
968 #define DLVR_RETURN 0x02
969 #define DLVR_TRACE 0x10
970 #define IS_DLVR_NOTIFY(e) (((e)->e_dlvr_flag & DLVR_NOTIFY) != 0)
971 #define IS_DLVR_RETURN(e) (((e)->e_dlvr_flag & DLVR_RETURN) != 0)
972 #define IS_DLVR_TRACE(e) (((e)->e_dlvr_flag & DLVR_TRACE) != 0)
973 #define IS_DLVR_BY(e) ((e)->e_dlvr_flag != 0)
974
975 #define BODYTYPE_NONE (0)
976 #define BODYTYPE_7BIT (1)
977 #define BODYTYPE_8BITMIME (2)
978 #define BODYTYPE_ILLEGAL (-1)
979 #define BODYTYPE_VALID(b) ((b) == BODYTYPE_7BIT || (b) == BODYTYPE_8BITMIME)
980
981 extern ENVELOPE BlankEnvelope;
982
983 /* functions */
984 extern void clearenvelope __P((ENVELOPE *, bool, SM_RPOOL_T *));
985 extern void dropenvelope __P((ENVELOPE *, bool, bool));
986 extern ENVELOPE *newenvelope __P((ENVELOPE *, ENVELOPE *, SM_RPOOL_T *));
987 extern void clrsessenvelope __P((ENVELOPE *));
988 extern void printenvflags __P((ENVELOPE *));
989 extern bool putbody __P((MCI *, ENVELOPE *, char *));
990 extern bool putheader __P((MCI *, HDR *, ENVELOPE *, int));
991
992 /*
993 ** Message priority classes.
994 **
995 ** The message class is read directly from the Priority: header
996 ** field in the message.
997 **
998 ** CurEnv->e_msgpriority is the number of bytes in the message plus
999 ** the creation time (so that jobs ``tend'' to be ordered correctly),
1000 ** adjusted by the message class, the number of recipients, and the
1001 ** amount of time the message has been sitting around. This number
1002 ** is used to order the queue. Higher values mean LOWER priority.
1003 **
1004 ** Each priority class point is worth WkClassFact priority points;
1005 ** each recipient is worth WkRecipFact priority points. Each time
1006 ** we reprocess a message the priority is adjusted by WkTimeFact.
1007 ** WkTimeFact should normally decrease the priority so that jobs
1008 ** that have historically failed will be run later; thanks go to
1009 ** Jay Lepreau at Utah for pointing out the error in my thinking.
1010 **
1011 ** The "class" is this number, unadjusted by the age or size of
1012 ** this message. Classes with negative representations will have
1013 ** error messages thrown away if they are not local.
1014 */
1015
1016 struct priority
1017 {
1018 char *pri_name; /* external name of priority */
1019 int pri_val; /* internal value for same */
1020 };
1021
1022 EXTERN int NumPriorities; /* pointer into Priorities */
1023 EXTERN struct priority Priorities[MAXPRIORITIES];
1024
1025 /*
1026 ** Rewrite rules.
1027 */
1028
1029 struct rewrite
1030 {
1031 char **r_lhs; /* pattern match */
1032 char **r_rhs; /* substitution value */
1033 struct rewrite *r_next;/* next in chain */
1034 int r_line; /* rule line in sendmail.cf */
1035 };
1036
1037 /*
1038 ** Special characters in rewriting rules.
1039 ** These are used internally only.
1040 ** The COND* rules are actually used in macros rather than in
1041 ** rewriting rules, but are given here because they
1042 ** cannot conflict.
1043 */
1044
1045 /* "out of band" indicator */
1046 /* sm/sendmail.h #define METAQUOTE ((unsigned char)0377) quotes the next octet */
1047
1048 /* left hand side items */
1049 #define MATCHZANY ((unsigned char)0220) /* match zero or more tokens */
1050 #define MATCHANY ((unsigned char)0221) /* match one or more tokens */
1051 #define MATCHONE ((unsigned char)0222) /* match exactly one token */
1052 #define MATCHCLASS ((unsigned char)0223) /* match one token in a class */
1053 #define MATCHNCLASS ((unsigned char)0224) /* match tokens not in class */
1054
1055 /* right hand side items */
1056 #define MATCHREPL ((unsigned char)0225) /* RHS replacement for above */
1057 #define CANONNET ((unsigned char)0226) /* canonical net, next token */
1058 #define CANONHOST ((unsigned char)0227) /* canonical host, next token */
1059 #define CANONUSER ((unsigned char)0230) /* canonical user, next N tokens */
1060 #define CALLSUBR ((unsigned char)0231) /* call another rewriting set */
1061
1062 /* conditionals in macros (anywhere) */
1063 #define CONDIF ((unsigned char)0232) /* conditional if-then */
1064 #define CONDELSE ((unsigned char)0233) /* conditional else */
1065 #define CONDFI ((unsigned char)0234) /* conditional fi */
1066
1067 /* bracket characters for RHS host name lookup */
1068 #define HOSTBEGIN ((unsigned char)0235) /* hostname lookup begin */
1069 #define HOSTEND ((unsigned char)0236) /* hostname lookup end */
1070
1071 /* bracket characters for RHS generalized lookup */
1072 #define LOOKUPBEGIN ((unsigned char)0205) /* generalized lookup begin */
1073 #define LOOKUPEND ((unsigned char)0206) /* generalized lookup end */
1074
1075 /* macro substitution characters (anywhere) */
1076 #define MACROEXPAND ((unsigned char)0201) /* macro expansion */
1077 #define MACRODEXPAND ((unsigned char)0202) /* deferred macro expansion */
1078
1079 /* to make the code clearer */
1080 #define MATCHZERO CANONHOST
1081
1082 #define MAXMATCH 9 /* max params per rewrite */
1083 #define MAX_MAP_ARGS 10 /* max arguments for map */
1084
1085 /* external <==> internal mapping table */
1086 struct metamac
1087 {
1088 char metaname; /* external code (after $) */
1089 unsigned char metaval; /* internal code (as above) */
1090 };
1091
1092 /* values for macros with external names only */
1093 #define MID_OPMODE 0202 /* operation mode */
1094
1095 /* functions */
1096 #if SM_HEAP_CHECK
1097 extern void
1098 macdefine_tagged __P((
1099 MACROS_T *_mac,
1100 ARGCLASS_T _vclass,
1101 int _id,
1102 char *_value,
1103 char *_file,
1104 int _line,
1105 int _group));
1106 # define macdefine(mac,c,id,v) \
1107 macdefine_tagged(mac,c,id,v,__FILE__,__LINE__,sm_heap_group())
1108 #else /* SM_HEAP_CHECK */
1109 extern void
1110 macdefine __P((
1111 MACROS_T *_mac,
1112 ARGCLASS_T _vclass,
1113 int _id,
1114 char *_value));
1115 # define macdefine_tagged(mac,c,id,v,file,line,grp) macdefine(mac,c,id,v)
1116 #endif /* SM_HEAP_CHECK */
1117 extern void macset __P((MACROS_T *, int, char *));
1118 #define macget(mac, i) (mac)->mac_table[i]
1119 extern void expand __P((char *, char *, size_t, ENVELOPE *));
1120 extern int macid_parse __P((char *, char **));
1121 #define macid(name) macid_parse(name, NULL)
1122 extern char *macname __P((int));
1123 extern char *macvalue __P((int, ENVELOPE *));
1124 extern int rscheck __P((char *, char *, char *, ENVELOPE *, int, int, char *, char *, ADDRESS *));
1125 extern int rscap __P((char *, char *, char *, ENVELOPE *, char ***, char *, int));
1126 extern void setclass __P((int, char *));
1127 extern int strtorwset __P((char *, char **, int));
1128 extern char *translate_dollars __P((char *, char *, int *));
1129 extern bool wordinclass __P((char *, int));
1130
1131 /*
1132 ** Name canonification short circuit.
1133 **
1134 ** If the name server for a host is down, the process of trying to
1135 ** canonify the name can hang. This is similar to (but alas, not
1136 ** identical to) looking up the name for delivery. This stab type
1137 ** caches the result of the name server lookup so we don't hang
1138 ** multiple times.
1139 */
1140
1141 #define NAMECANON struct _namecanon
1142
1143 NAMECANON
1144 {
1145 short nc_errno; /* cached errno */
1146 short nc_herrno; /* cached h_errno */
1147 short nc_stat; /* cached exit status code */
1148 short nc_flags; /* flag bits */
1149 char *nc_cname; /* the canonical name */
1150 time_t nc_exp; /* entry expires at */
1151 };
1152
1153 /* values for nc_flags */
1154 #define NCF_VALID 0x0001 /* entry valid */
1155
1156 /* hostsignature structure */
1157
1158 struct hostsig_t
1159 {
1160 char *hs_sig; /* hostsignature */
1161 time_t hs_exp; /* entry expires at */
1162 };
1163
1164 typedef struct hostsig_t HOSTSIG_T;
1165
1166 /* functions */
1167 extern bool getcanonname __P((char *, int, bool, int *));
1168 extern int getmxrr __P((char *, char **, unsigned short *, bool, int *, bool, int *));
1169 extern char *hostsignature __P((MAILER *, char *));
1170 extern int getfallbackmxrr __P((char *));
1171
1172 /*
1173 ** Mapping functions
1174 **
1175 ** These allow arbitrary mappings in the config file. The idea
1176 ** (albeit not the implementation) comes from IDA sendmail.
1177 */
1178
1179 #define MAPCLASS struct _mapclass
1180 #define MAP struct _map
1181 #define MAXMAPACTIONS 5 /* size of map_actions array */
1182
1183
1184 /*
1185 ** An actual map.
1186 */
1187
1188 MAP
1189 {
1190 MAPCLASS *map_class; /* the class of this map */
1191 MAPCLASS *map_orgclass; /* the original class of this map */
1192 char *map_mname; /* name of this map */
1193 long map_mflags; /* flags, see below */
1194 char *map_file; /* the (nominal) filename */
1195 ARBPTR_T map_db1; /* the open database ptr */
1196 ARBPTR_T map_db2; /* an "extra" database pointer */
1197 char *map_keycolnm; /* key column name */
1198 char *map_valcolnm; /* value column name */
1199 unsigned char map_keycolno; /* key column number */
1200 unsigned char map_valcolno; /* value column number */
1201 char map_coldelim; /* column delimiter */
1202 char map_spacesub; /* spacesub */
1203 char *map_app; /* to append to successful matches */
1204 char *map_tapp; /* to append to "tempfail" matches */
1205 char *map_domain; /* the (nominal) NIS domain */
1206 char *map_rebuild; /* program to run to do auto-rebuild */
1207 time_t map_mtime; /* last database modification time */
1208 time_t map_timeout; /* timeout for map accesses */
1209 int map_retry; /* # of retries for map accesses */
1210 pid_t map_pid; /* PID of process which opened map */
1211 int map_lockfd; /* auxiliary lock file descriptor */
1212 short map_specificity; /* specificity of aliases */
1213 MAP *map_stack[MAXMAPSTACK]; /* list for stacked maps */
1214 short map_return[MAXMAPACTIONS]; /* return bitmaps for stacked maps */
1215 };
1216
1217
1218 /* bit values for map_mflags */
1219 #define MF_VALID 0x00000001 /* this entry is valid */
1220 #define MF_INCLNULL 0x00000002 /* include null byte in key */
1221 #define MF_OPTIONAL 0x00000004 /* don't complain if map not found */
1222 #define MF_NOFOLDCASE 0x00000008 /* don't fold case in keys */
1223 #define MF_MATCHONLY 0x00000010 /* don't use the map value */
1224 #define MF_OPEN 0x00000020 /* this entry is open */
1225 #define MF_WRITABLE 0x00000040 /* open for writing */
1226 #define MF_ALIAS 0x00000080 /* this is an alias file */
1227 #define MF_TRY0NULL 0x00000100 /* try with no null byte */
1228 #define MF_TRY1NULL 0x00000200 /* try with the null byte */
1229 #define MF_LOCKED 0x00000400 /* this map is currently locked */
1230 #define MF_ALIASWAIT 0x00000800 /* alias map in aliaswait state */
1231 #define MF_IMPL_HASH 0x00001000 /* implicit: underlying hash database */
1232 #define MF_IMPL_NDBM 0x00002000 /* implicit: underlying NDBM database */
1233 /* 0x00004000 */
1234 #define MF_APPEND 0x00008000 /* append new entry on rebuild */
1235 #define MF_KEEPQUOTES 0x00010000 /* don't dequote key before lookup */
1236 #define MF_NODEFER 0x00020000 /* don't defer if map lookup fails */
1237 #define MF_REGEX_NOT 0x00040000 /* regular expression negation */
1238 #define MF_DEFER 0x00080000 /* don't lookup map in defer mode */
1239 #define MF_SINGLEMATCH 0x00100000 /* successful only if match one key */
1240 #define MF_SINGLEDN 0x00200000 /* only one match, but multi values */
1241 #define MF_FILECLASS 0x00400000 /* this is a file class map */
1242 #define MF_OPENBOGUS 0x00800000 /* open failed, don't call map_close */
1243 #define MF_CLOSING 0x01000000 /* map is being closed */
1244
1245 #define DYNOPENMAP(map) if (!bitset(MF_OPEN, (map)->map_mflags)) \
1246 { \
1247 if (!openmap(map)) \
1248 return NULL; \
1249 }
1250
1251
1252 /* indices for map_actions */
1253 #define MA_NOTFOUND 0 /* member map returned "not found" */
1254 #define MA_UNAVAIL 1 /* member map is not available */
1255 #define MA_TRYAGAIN 2 /* member map returns temp failure */
1256
1257 /* macros to handle MapTempFail */
1258 #define BIT_IS_MTP 0x01 /* temp.failure occurred */
1259 #define BIT_ASK_MTP 0x02 /* do we care about MapTempFail? */
1260 #define RESET_MAPTEMPFAIL MapTempFail = 0
1261 #define INIT_MAPTEMPFAIL MapTempFail = BIT_ASK_MTP
1262 #define SET_MAPTEMPFAIL MapTempFail |= BIT_IS_MTP
1263 #define IS_MAPTEMPFAIL bitset(BIT_IS_MTP, MapTempFail)
1264 #define ASK_MAPTEMPFAIL bitset(BIT_ASK_MTP, MapTempFail)
1265
1266 /*
1267 ** The class of a map -- essentially the functions to call
1268 */
1269
1270 MAPCLASS
1271 {
1272 char *map_cname; /* name of this map class */
1273 char *map_ext; /* extension for database file */
1274 short map_cflags; /* flag bits, see below */
1275 bool (*map_parse)__P((MAP *, char *));
1276 /* argument parsing function */
1277 char *(*map_lookup)__P((MAP *, char *, char **, int *));
1278 /* lookup function */
1279 void (*map_store)__P((MAP *, char *, char *));
1280 /* store function */
1281 bool (*map_open)__P((MAP *, int));
1282 /* open function */
1283 void (*map_close)__P((MAP *));
1284 /* close function */
1285 };
1286
1287 /* bit values for map_cflags */
1288 #define MCF_ALIASOK 0x0001 /* can be used for aliases */
1289 #define MCF_ALIASONLY 0x0002 /* usable only for aliases */
1290 #define MCF_REBUILDABLE 0x0004 /* can rebuild alias files */
1291 #define MCF_OPTFILE 0x0008 /* file name is optional */
1292 #define MCF_NOTPERSIST 0x0010 /* don't keep map open all the time */
1293
1294 /* functions */
1295 extern void closemaps __P((bool));
1296 extern bool impl_map_open __P((MAP *, int));
1297 extern void initmaps __P((void));
1298 extern MAP *makemapentry __P((char *));
1299 extern void maplocaluser __P((ADDRESS *, ADDRESS **, int, ENVELOPE *));
1300 extern char *map_rewrite __P((MAP *, const char *, size_t, char **));
1301 #if NETINFO
1302 extern char *ni_propval __P((char *, char *, char *, char *, int));
1303 #endif /* NETINFO */
1304 extern bool openmap __P((MAP *));
1305 extern int udbexpand __P((ADDRESS *, ADDRESS **, int, ENVELOPE *));
1306 #if USERDB
1307 extern void _udbx_close __P((void));
1308 extern char *udbsender __P((char *, SM_RPOOL_T *));
1309 #endif /* USERDB */
1310
1311 /*
1312 ** LDAP related items
1313 */
1314 #if LDAPMAP
1315 /* struct defining LDAP Auth Methods */
1316 struct lamvalues
1317 {
1318 char *lam_name; /* name of LDAP auth method */
1319 int lam_code; /* numeric code */
1320 };
1321
1322 /* struct defining LDAP Alias Dereferencing */
1323 struct ladvalues
1324 {
1325 char *lad_name; /* name of LDAP alias dereferencing method */
1326 int lad_code; /* numeric code */
1327 };
1328
1329 /* struct defining LDAP Search Scope */
1330 struct lssvalues
1331 {
1332 char *lss_name; /* name of LDAP search scope */
1333 int lss_code; /* numeric code */
1334 };
1335
1336 /* functions */
1337 extern bool ldapmap_parseargs __P((MAP *, char *));
1338 extern void ldapmap_set_defaults __P((char *));
1339 #endif /* LDAPMAP */
1340
1341 /*
1342 ** PH related items
1343 */
1344
1345 #if PH_MAP
1346
1347 # include <phclient.h>
1348
1349 struct ph_map_struct
1350 {
1351 char *ph_servers; /* list of ph servers */
1352 char *ph_field_list; /* list of fields to search for match */
1353 PH *ph; /* PH server handle */
1354 int ph_fastclose; /* send "quit" command on close */
1355 time_t ph_timeout; /* timeout interval */
1356 };
1357 typedef struct ph_map_struct PH_MAP_STRUCT;
1358
1359 #endif /* PH_MAP */
1360
1361 /*
1362 ** Regular UNIX sockaddrs are too small to handle ISO addresses, so
1363 ** we are forced to declare a supertype here.
1364 */
1365
1366 #if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25
1367 union bigsockaddr
1368 {
1369 struct sockaddr sa; /* general version */
1370 # if NETUNIX
1371 struct sockaddr_un sunix; /* UNIX family */
1372 # endif /* NETUNIX */
1373 # if NETINET
1374 struct sockaddr_in sin; /* INET family */
1375 # endif /* NETINET */
1376 # if NETINET6
1377 struct sockaddr_in6 sin6; /* INET/IPv6 */
1378 # endif /* NETINET6 */
1379 # if NETISO
1380 struct sockaddr_iso siso; /* ISO family */
1381 # endif /* NETISO */
1382 # if NETNS
1383 struct sockaddr_ns sns; /* XNS family */
1384 # endif /* NETNS */
1385 # if NETX25
1386 struct sockaddr_x25 sx25; /* X.25 family */
1387 # endif /* NETX25 */
1388 };
1389
1390 # define SOCKADDR union bigsockaddr
1391
1392 /* functions */
1393 extern char *anynet_ntoa __P((SOCKADDR *));
1394 # if NETINET6
1395 extern char *anynet_ntop __P((struct in6_addr *, char *, size_t));
1396 extern int anynet_pton __P((int, const char *, void *));
1397 # endif /* NETINET6 */
1398 extern char *hostnamebyanyaddr __P((SOCKADDR *));
1399 extern char *validate_connection __P((SOCKADDR *, char *, ENVELOPE *));
1400 # if SASL >= 20000
1401 extern bool iptostring __P((SOCKADDR *, SOCKADDR_LEN_T, char *, unsigned));
1402 # endif /* SASL >= 20000 */
1403
1404 #endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */
1405
1406 /*
1407 ** Process List (proclist)
1408 */
1409
1410 #define NO_PID ((pid_t) 0)
1411 #ifndef PROC_LIST_SEG
1412 # define PROC_LIST_SEG 32 /* number of pids to alloc at a time */
1413 #endif /* ! PROC_LIST_SEG */
1414
1415 /* process types */
1416 #define PROC_NONE 0
1417 #define PROC_DAEMON 1
1418 #define PROC_DAEMON_CHILD 2
1419 #define PROC_QUEUE 3
1420 #define PROC_QUEUE_CHILD 3
1421 #define PROC_CONTROL 4
1422 #define PROC_CONTROL_CHILD 5
1423
1424 /* functions */
1425 extern void proc_list_add __P((pid_t, char *, int, int, int, SOCKADDR *));
1426 extern void proc_list_clear __P((void));
1427 extern void proc_list_display __P((SM_FILE_T *, char *));
1428 extern void proc_list_drop __P((pid_t, int, int *));
1429 extern void proc_list_probe __P((void));
1430 extern void proc_list_set __P((pid_t, char *));
1431 extern void proc_list_signal __P((int, int));
1432
1433 /*
1434 ** Symbol table definitions
1435 */
1436
1437 struct symtab
1438 {
1439 char *s_name; /* name to be entered */
1440 short s_symtype; /* general type (see below) */
1441 struct symtab *s_next; /* pointer to next in chain */
1442 union
1443 {
1444 BITMAP256 sv_class; /* bit-map of word classes */
1445 ADDRESS *sv_addr; /* pointer to address header */
1446 MAILER *sv_mailer; /* pointer to mailer */
1447 char *sv_alias; /* alias */
1448 MAPCLASS sv_mapclass; /* mapping function class */
1449 MAP sv_map; /* mapping function */
1450 HOSTSIG_T sv_hostsig; /* host signature */
1451 MCI sv_mci; /* mailer connection info */
1452 NAMECANON sv_namecanon; /* canonical name cache */
1453 int sv_macro; /* macro name => id mapping */
1454 int sv_ruleset; /* ruleset index */
1455 struct hdrinfo sv_header; /* header metainfo */
1456 char *sv_service[MAXMAPSTACK]; /* service switch */
1457 #if LDAPMAP
1458 MAP *sv_lmap; /* Maps for LDAP connection */
1459 #endif /* LDAPMAP */
1460 #if SOCKETMAP
1461 MAP *sv_socketmap; /* Maps for SOCKET connection */
1462 #endif /* SOCKETMAP */
1463 #if MILTER
1464 struct milter *sv_milter; /* milter filter name */
1465 #endif /* MILTER */
1466 QUEUEGRP *sv_queue; /* pointer to queue */
1467 } s_value;
1468 };
1469
1470 typedef struct symtab STAB;
1471
1472 /* symbol types */
1473 #define ST_UNDEF 0 /* undefined type */
1474 #define ST_CLASS 1 /* class map */
1475 #define ST_ADDRESS 2 /* an address in parsed format */
1476 #define ST_MAILER 3 /* a mailer header */
1477 #define ST_ALIAS 4 /* an alias */
1478 #define ST_MAPCLASS 5 /* mapping function class */
1479 #define ST_MAP 6 /* mapping function */
1480 #define ST_HOSTSIG 7 /* host signature */
1481 #define ST_NAMECANON 8 /* cached canonical name */
1482 #define ST_MACRO 9 /* macro name to id mapping */
1483 #define ST_RULESET 10 /* ruleset index */
1484 #define ST_SERVICE 11 /* service switch entry */
1485 #define ST_HEADER 12 /* special header flags */
1486 #if LDAPMAP
1487 # define ST_LMAP 13 /* List head of maps for LDAP connection */
1488 #endif /* LDAPMAP */
1489 #if MILTER
1490 # define ST_MILTER 14 /* milter filter */
1491 #endif /* MILTER */
1492 #define ST_QUEUE 15 /* a queue entry */
1493
1494 #if SOCKETMAP
1495 # define ST_SOCKETMAP 16 /* List head of maps for SOCKET connection */
1496 #endif /* SOCKETMAP */
1497
1498 /* This entry must be last */
1499 #define ST_MCI 17 /* mailer connection info (offset) */
1500
1501 #define s_class s_value.sv_class
1502 #define s_address s_value.sv_addr
1503 #define s_mailer s_value.sv_mailer
1504 #define s_alias s_value.sv_alias
1505 #define s_mci s_value.sv_mci
1506 #define s_mapclass s_value.sv_mapclass
1507 #define s_hostsig s_value.sv_hostsig
1508 #define s_map s_value.sv_map
1509 #define s_namecanon s_value.sv_namecanon
1510 #define s_macro s_value.sv_macro
1511 #define s_ruleset s_value.sv_ruleset
1512 #define s_service s_value.sv_service
1513 #define s_header s_value.sv_header
1514 #if LDAPMAP
1515 # define s_lmap s_value.sv_lmap
1516 #endif /* LDAPMAP */
1517 #if SOCKETMAP
1518 # define s_socketmap s_value.sv_socketmap
1519 #endif /* SOCKETMAP */
1520 #if MILTER
1521 # define s_milter s_value.sv_milter
1522 #endif /* MILTER */
1523 #define s_quegrp s_value.sv_queue
1524
1525 /* opcodes to stab */
1526 #define ST_FIND 0 /* find entry */
1527 #define ST_ENTER 1 /* enter if not there */
1528
1529 /* functions */
1530 extern STAB *stab __P((char *, int, int));
1531 extern void stabapply __P((void (*)(STAB *, int), int));
1532
1533 /*
1534 ** Operation, send, error, and MIME modes
1535 **
1536 ** The operation mode describes the basic operation of sendmail.
1537 ** This can be set from the command line, and is "send mail" by
1538 ** default.
1539 **
1540 ** The send mode tells how to send mail. It can be set in the
1541 ** configuration file. Its setting determines how quickly the
1542 ** mail will be delivered versus the load on your system. If the
1543 ** -v (verbose) flag is given, it will be forced to SM_DELIVER
1544 ** mode.
1545 **
1546 ** The error mode tells how to return errors.
1547 */
1548
1549 #define MD_DELIVER 'm' /* be a mail sender */
1550 #define MD_SMTP 's' /* run SMTP on standard input */
1551 #define MD_ARPAFTP 'a' /* obsolete ARPANET mode (Grey Book) */
1552 #define MD_DAEMON 'd' /* run as a daemon */
1553 #define MD_FGDAEMON 'D' /* run daemon in foreground */
1554 #define MD_VERIFY 'v' /* verify: don't collect or deliver */
1555 #define MD_TEST 't' /* test mode: resolve addrs only */
1556 #define MD_INITALIAS 'i' /* initialize alias database */
1557 #define MD_PRINT 'p' /* print the queue */
1558 #define MD_PRINTNQE 'P' /* print number of entries in queue */
1559 #define MD_FREEZE 'z' /* freeze the configuration file */
1560 #define MD_HOSTSTAT 'h' /* print persistent host stat info */
1561 #define MD_PURGESTAT 'H' /* purge persistent host stat info */
1562 #define MD_QUEUERUN 'q' /* queue run */
1563
1564 /* Note: see also include/sendmail/pathnames.h: GET_CLIENT_CF */
1565
1566 /* values for e_sendmode -- send modes */
1567 #define SM_DELIVER 'i' /* interactive delivery */
1568 #define SM_FORK 'b' /* deliver in background */
1569 #if _FFR_DM_ONE
1570 #define SM_DM_ONE 'o' /* deliver first TA in background, then queue */
1571 #endif /* _FFR_DM_ONE */
1572 #define SM_QUEUE 'q' /* queue, don't deliver */
1573 #define SM_DEFER 'd' /* defer map lookups as well as queue */
1574 #define SM_VERIFY 'v' /* verify only (used internally) */
1575 #define DM_NOTSET (-1) /* DeliveryMode (per daemon) option not set */
1576
1577 #define WILL_BE_QUEUED(m) ((m) == SM_QUEUE || (m) == SM_DEFER)
1578
1579 /* used only as a parameter to sendall */
1580 #define SM_DEFAULT '\0' /* unspecified, use SendMode */
1581
1582 /* functions */
1583 extern void set_delivery_mode __P((int, ENVELOPE *));
1584
1585 /* values for e_errormode -- error handling modes */
1586 #define EM_PRINT 'p' /* print errors */
1587 #define EM_MAIL 'm' /* mail back errors */
1588 #define EM_WRITE 'w' /* write back errors */
1589 #define EM_BERKNET 'e' /* special berknet processing */
1590 #define EM_QUIET 'q' /* don't print messages (stat only) */
1591
1592
1593 /* bit values for MimeMode */
1594 #define MM_CVTMIME 0x0001 /* convert 8 to 7 bit MIME */
1595 #define MM_PASS8BIT 0x0002 /* just send 8 bit data blind */
1596 #define MM_MIME8BIT 0x0004 /* convert 8-bit data to MIME */
1597
1598
1599 /* how to handle messages without any recipient addresses */
1600 #define NRA_NO_ACTION 0 /* just leave it as is */
1601 #define NRA_ADD_TO 1 /* add To: header */
1602 #define NRA_ADD_APPARENTLY_TO 2 /* add Apparently-To: header */
1603 #define NRA_ADD_BCC 3 /* add empty Bcc: header */
1604 #define NRA_ADD_TO_UNDISCLOSED 4 /* add To: undisclosed:; header */
1605
1606
1607 /* flags to putxline */
1608 #define PXLF_NOTHINGSPECIAL 0 /* no special mapping */
1609 #define PXLF_MAPFROM 0x0001 /* map From_ to >From_ */
1610 #define PXLF_STRIP8BIT 0x0002 /* strip 8th bit */
1611 #define PXLF_HEADER 0x0004 /* map newlines in headers */
1612 #define PXLF_NOADDEOL 0x0008 /* if EOL not present, don't add one */
1613 #define PXLF_STRIPMQUOTE 0x0010 /* strip METAQUOTEs */
1614
1615 /*
1616 ** Privacy flags
1617 ** These are bit values for the PrivacyFlags word.
1618 */
1619
1620 #define PRIV_PUBLIC 0 /* what have I got to hide? */
1621 #define PRIV_NEEDMAILHELO 0x00000001 /* insist on HELO for MAIL */
1622 #define PRIV_NEEDEXPNHELO 0x00000002 /* insist on HELO for EXPN */
1623 #define PRIV_NEEDVRFYHELO 0x00000004 /* insist on HELO for VRFY */
1624 #define PRIV_NOEXPN 0x00000008 /* disallow EXPN command */
1625 #define PRIV_NOVRFY 0x00000010 /* disallow VRFY command */
1626 #define PRIV_AUTHWARNINGS 0x00000020 /* flag possible auth probs */
1627 #define PRIV_NOVERB 0x00000040 /* disallow VERB command */
1628 #define PRIV_RESTRICTMAILQ 0x00010000 /* restrict mailq command */
1629 #define PRIV_RESTRICTQRUN 0x00020000 /* restrict queue run */
1630 #define PRIV_RESTRICTEXPAND 0x00040000 /* restrict alias/forward expansion */
1631 #define PRIV_NOETRN 0x00080000 /* disallow ETRN command */
1632 #define PRIV_NOBODYRETN 0x00100000 /* do not return bodies on bounces */
1633 #define PRIV_NORECEIPTS 0x00200000 /* disallow return receipts */
1634 #define PRIV_NOACTUALRECIPIENT 0x00400000 /* no X-Actual-Recipient in DSNs */
1635
1636 /* don't give no info, anyway, anyhow (in the main SMTP transaction) */
1637 #define PRIV_GOAWAY 0x0000ffff
1638
1639 /* struct defining such things */
1640 struct prival
1641 {
1642 char *pv_name; /* name of privacy flag */
1643 unsigned long pv_flag; /* numeric level */
1644 };
1645
1646 EXTERN unsigned long PrivacyFlags; /* privacy flags */
1647
1648
1649 /*
1650 ** Flags passed to remotename, parseaddr, allocaddr, and buildaddr.
1651 */
1652
1653 #define RF_SENDERADDR 0x001 /* this is a sender address */
1654 #define RF_HEADERADDR 0x002 /* this is a header address */
1655 #define RF_CANONICAL 0x004 /* strip comment information */
1656 #define RF_ADDDOMAIN 0x008 /* OK to do domain extension */
1657 #define RF_COPYPARSE 0x010 /* copy parsed user & host */
1658 #define RF_COPYPADDR 0x020 /* copy print address */
1659 #define RF_COPYALL (RF_COPYPARSE|RF_COPYPADDR)
1660 #define RF_COPYNONE 0
1661 #define RF_RM_ADDR 0x040 /* address to be removed */
1662
1663 /*
1664 ** Flags passed to rscheck
1665 */
1666
1667 #define RSF_RMCOMM 0x0001 /* strip comments */
1668 #define RSF_UNSTRUCTURED 0x0002 /* unstructured, ignore syntax errors */
1669 #define RSF_COUNT 0x0004 /* count rejections (statistics)? */
1670
1671 /*
1672 ** Flags passed to mime8to7 and putheader.
1673 */
1674
1675 #define M87F_OUTER 0 /* outer context */
1676 #define M87F_NO8BIT 0x0001 /* can't have 8-bit in this section */
1677 #define M87F_DIGEST 0x0002 /* processing multipart/digest */
1678 #define M87F_NO8TO7 0x0004 /* don't do 8->7 bit conversions */
1679
1680 /* functions */
1681 extern bool mime7to8 __P((MCI *, HDR *, ENVELOPE *));
1682 extern int mime8to7 __P((MCI *, HDR *, ENVELOPE *, char **, int, int));
1683
1684 /*
1685 ** Flags passed to returntosender.
1686 */
1687
1688 #define RTSF_NO_BODY 0 /* send headers only */
1689 #define RTSF_SEND_BODY 0x0001 /* include body of message in return */
1690 #define RTSF_PM_BOUNCE 0x0002 /* this is a postmaster bounce */
1691
1692 /* functions */
1693 extern int returntosender __P((char *, ADDRESS *, int, ENVELOPE *));
1694
1695 /*
1696 ** Mail Filters (milter)
1697 */
1698
1699 /*
1700 ** 32-bit type used by milter
1701 ** (needed by libmilter even if MILTER isn't defined)
1702 */
1703
1704 typedef SM_INT32 mi_int32;
1705
1706 #if MILTER
1707 # define SMFTO_WRITE 0 /* Timeout for sending information */
1708 # define SMFTO_READ 1 /* Timeout waiting for a response */
1709 # define SMFTO_EOM 2 /* Timeout for ACK/NAK to EOM */
1710 # define SMFTO_CONNECT 3 /* Timeout for connect() */
1711
1712 # define SMFTO_NUM_TO 4 /* Total number of timeouts */
1713
1714 struct milter
1715 {
1716 char *mf_name; /* filter name */
1717 BITMAP256 mf_flags; /* MTA flags */
1718 mi_int32 mf_fvers; /* filter version */
1719 mi_int32 mf_fflags; /* filter flags */
1720 mi_int32 mf_pflags; /* protocol flags */
1721 char *mf_conn; /* connection info */
1722 int mf_sock; /* connected socket */
1723 char mf_state; /* state of filter */
1724 time_t mf_timeout[SMFTO_NUM_TO]; /* timeouts */
1725 #if _FFR_MILTER_CHECK
1726 /* for testing only */
1727 mi_int32 mf_mta_prot_version;
1728 mi_int32 mf_mta_prot_flags;
1729 mi_int32 mf_mta_actions;
1730 #endif /* _FFR_MILTER_CHECK */
1731 };
1732
1733 struct milters
1734 {
1735 mi_int32 mis_flags; /* filter flags */
1736 };
1737 typedef struct milters milters_T;
1738
1739 #define MIS_FL_NONE 0x00000000 /* no requirements... */
1740 #define MIS_FL_DEL_RCPT 0x00000001 /* can delete rcpt */
1741 #define MIS_FL_REJ_RCPT 0x00000002 /* can reject rcpt */
1742
1743
1744 /* MTA flags */
1745 # define SMF_REJECT 'R' /* Reject connection on filter fail */
1746 # define SMF_TEMPFAIL 'T' /* tempfail connection on failure */
1747 # define SMF_TEMPDROP '4' /* 421 connection on failure */
1748
1749 EXTERN struct milter *InputFilters[MAXFILTERS];
1750 EXTERN char *InputFilterList;
1751 EXTERN int MilterLogLevel;
1752
1753 /* functions */
1754 extern void setup_daemon_milters __P((void));
1755 #endif /* MILTER */
1756
1757 /*
1758 ** Vendor codes
1759 **
1760 ** Vendors can customize sendmail to add special behaviour,
1761 ** generally for back compatibility. Ideally, this should
1762 ** be set up in the .cf file using the "V" command. However,
1763 ** it's quite reasonable for some vendors to want the default
1764 ** be their old version; this can be set using
1765 ** -DVENDOR_DEFAULT=VENDOR_xxx
1766 ** in the Makefile.
1767 **
1768 ** Vendors should apply to sendmail@sendmail.org for
1769 ** unique vendor codes.
1770 */
1771
1772 #define VENDOR_BERKELEY 1 /* Berkeley-native configuration file */
1773 #define VENDOR_SUN 2 /* Sun-native configuration file */
1774 #define VENDOR_HP 3 /* Hewlett-Packard specific config syntax */
1775 #define VENDOR_IBM 4 /* IBM specific config syntax */
1776 #define VENDOR_SENDMAIL 5 /* Sendmail, Inc. specific config syntax */
1777 #define VENDOR_DEC 6 /* Compaq, DEC, Digital */
1778
1779 /* prototypes for vendor-specific hook routines */
1780 extern void vendor_daemon_setup __P((ENVELOPE *));
1781 extern void vendor_set_uid __P((UID_T));
1782
1783
1784 /*
1785 ** Terminal escape codes.
1786 **
1787 ** To make debugging output clearer.
1788 */
1789
1790 struct termescape
1791 {
1792 char *te_rv_on; /* turn reverse-video on */
1793 char *te_under_on; /* turn underlining on */
1794 char *te_normal; /* revert to normal output */
1795 };
1796
1797 /*
1798 ** Additional definitions
1799 */
1800
1801 /*
1802 ** d_flags, see daemon.c
1803 ** general rule: lower case: required, upper case: No
1804 */
1805
1806 #define D_AUTHREQ 'a' /* authentication required */
1807 #define D_BINDIF 'b' /* use if_addr for outgoing connection */
1808 #define D_CANONREQ 'c' /* canonification required (cf) */
1809 #define D_IFNHELO 'h' /* use if name for HELO */
1810 #define D_FQMAIL 'f' /* fq sender address required (cf) */
1811 #define D_FQRCPT 'r' /* fq recipient address required (cf) */
1812 #define D_SMTPS 's' /* SMTP over SSL (smtps) */
1813 #define D_UNQUALOK 'u' /* unqualified address is ok (cf) */
1814 #define D_NOAUTH 'A' /* no AUTH */
1815 #define D_NOCANON 'C' /* no canonification (cf) */
1816 #define D_NOETRN 'E' /* no ETRN (MSA) */
1817 #define D_NOTLS 'S' /* don't use STARTTLS */
1818 #define D_ETRNONLY ((char)0x01) /* allow only ETRN (disk low) */
1819 #define D_OPTIONAL 'O' /* optional socket */
1820 #define D_DISABLE ((char)0x02) /* optional socket disabled */
1821 #define D_ISSET ((char)0x03) /* this client struct is set */
1822
1823 #if STARTTLS
1824 /*
1825 ** TLS
1826 */
1827
1828 /* what to do in the TLS initialization */
1829 #define TLS_I_NONE 0x00000000 /* no requirements... */
1830 #define TLS_I_CERT_EX 0x00000001 /* cert must exist */
1831 #define TLS_I_CERT_UNR 0x00000002 /* cert must be g/o unreadable */
1832 #define TLS_I_KEY_EX 0x00000004 /* key must exist */
1833 #define TLS_I_KEY_UNR 0x00000008 /* key must be g/o unreadable */
1834 #define TLS_I_CERTP_EX 0x00000010 /* CA cert path must exist */
1835 #define TLS_I_CERTP_UNR 0x00000020 /* CA cert path must be g/o unreadable */
1836 #define TLS_I_CERTF_EX 0x00000040 /* CA cert file must exist */
1837 #define TLS_I_CERTF_UNR 0x00000080 /* CA cert file must be g/o unreadable */
1838 #define TLS_I_RSA_TMP 0x00000100 /* RSA TMP must be generated */
1839 #define TLS_I_USE_KEY 0x00000200 /* private key must usable */
1840 #define TLS_I_USE_CERT 0x00000400 /* certificate must be usable */
1841 #define TLS_I_VRFY_PATH 0x00000800 /* load verify path must succeed */
1842 #define TLS_I_VRFY_LOC 0x00001000 /* load verify default must succeed */
1843 #define TLS_I_CACHE 0x00002000 /* require cache */
1844 #define TLS_I_TRY_DH 0x00004000 /* try DH certificate */
1845 #define TLS_I_REQ_DH 0x00008000 /* require DH certificate */
1846 #define TLS_I_DHPAR_EX 0x00010000 /* require DH parameters */
1847 #define TLS_I_DHPAR_UNR 0x00020000 /* DH param. must be g/o unreadable */
1848 #define TLS_I_DH512 0x00040000 /* generate 512bit DH param */
1849 #define TLS_I_DH1024 0x00080000 /* generate 1024bit DH param */
1850 #define TLS_I_DH2048 0x00100000 /* generate 2048bit DH param */
1851 #define TLS_I_NO_VRFY 0x00200000 /* do not require authentication */
1852 #define TLS_I_KEY_OUNR 0x00400000 /* Key must be other unreadable */
1853 #define TLS_I_CRLF_EX 0x00800000 /* CRL file must exist */
1854 #define TLS_I_CRLF_UNR 0x01000000 /* CRL file must be g/o unreadable */
1855
1856 /* require server cert */
1857 #define TLS_I_SRV_CERT (TLS_I_CERT_EX | TLS_I_KEY_EX | \
1858 TLS_I_KEY_UNR | TLS_I_KEY_OUNR | \
1859 TLS_I_CERTP_EX | TLS_I_CERTF_EX | \
1860 TLS_I_USE_KEY | TLS_I_USE_CERT | TLS_I_CACHE)
1861
1862 /* server requirements */
1863 #define TLS_I_SRV (TLS_I_SRV_CERT | TLS_I_RSA_TMP | TLS_I_VRFY_PATH | \
1864 TLS_I_VRFY_LOC | TLS_I_TRY_DH | TLS_I_DH512 | \
1865 TLS_I_CACHE)
1866
1867 /* client requirements */
1868 #define TLS_I_CLT (TLS_I_KEY_UNR | TLS_I_KEY_OUNR)
1869
1870 #define TLS_AUTH_OK 0
1871 #define TLS_AUTH_NO 1
1872 #define TLS_AUTH_FAIL (-1)
1873
1874 /* functions */
1875 extern bool init_tls_library __P((void));
1876 extern bool inittls __P((SSL_CTX **, unsigned long, bool, char *, char *, char *, char *, char *));
1877 extern bool initclttls __P((bool));
1878 extern void setclttls __P((bool));
1879 extern bool initsrvtls __P((bool));
1880 extern int tls_get_info __P((SSL *, bool, char *, MACROS_T *, bool));
1881 extern int endtls __P((SSL *, char *));
1882 extern void tlslogerr __P((const char *));
1883
1884
1885 EXTERN char *CACertPath; /* path to CA certificates (dir. with hashes) */
1886 EXTERN char *CACertFile; /* file with CA certificate */
1887 EXTERN char *CltCertFile; /* file with client certificate */
1888 EXTERN char *CltKeyFile; /* file with client private key */
1889 # if _FFR_TLS_1
1890 EXTERN char *CipherList; /* list of ciphers */
1891 EXTERN char *DHParams5; /* file with DH parameters (512) */
1892 # endif /* _FFR_TLS_1 */
1893 EXTERN char *DHParams; /* file with DH parameters */
1894 EXTERN char *RandFile; /* source of random data */
1895 EXTERN char *SrvCertFile; /* file with server certificate */
1896 EXTERN char *SrvKeyFile; /* file with server private key */
1897 EXTERN char *CRLFile; /* file CRLs */
1898 #if _FFR_CRLPATH
1899 EXTERN char *CRLPath; /* path to CRLs (dir. with hashes) */
1900 #endif /* _FFR_CRLPATH */
1901 EXTERN unsigned long TLS_Srv_Opts; /* TLS server options */
1902 #endif /* STARTTLS */
1903
1904 /*
1905 ** Queue related items
1906 */
1907
1908 /* queue file names */
1909 #define ANYQFL_LETTER '?'
1910 #define QUARQF_LETTER 'h'
1911 #define DATAFL_LETTER 'd'
1912 #define XSCRPT_LETTER 'x'
1913 #define NORMQF_LETTER 'q'
1914 #define NEWQFL_LETTER 't'
1915
1916 # define TEMPQF_LETTER 'T'
1917 # define LOSEQF_LETTER 'Q'
1918
1919 /* queue sort order */
1920 #define QSO_BYPRIORITY 0 /* sort by message priority */
1921 #define QSO_BYHOST 1 /* sort by first host name */
1922 #define QSO_BYTIME 2 /* sort by submission time */
1923 #define QSO_BYFILENAME 3 /* sort by file name only */
1924 #define QSO_RANDOM 4 /* sort in random order */
1925 #define QSO_BYMODTIME 5 /* sort by modification time */
1926 #define QSO_NONE 6 /* do not sort */
1927 #if _FFR_RHS
1928 # define QSO_BYSHUFFLE 7 /* sort by shuffled host name */
1929 #endif /* _FFR_RHS */
1930
1931 #define NOQGRP (-1) /* no queue group (yet) */
1932 #define ENVQGRP (-2) /* use queue group of envelope */
1933 #define NOAQGRP (-3) /* no queue group in addr (yet) */
1934 #define ISVALIDQGRP(x) ((x) >= 0) /* valid queue group? */
1935 #define NOQDIR (-1) /* no queue directory (yet) */
1936 #define ENVQDIR (-2) /* use queue directory of envelope */
1937 #define NOAQDIR (-3) /* no queue directory in addr (yet) */
1938 #define ISVALIDQDIR(x) ((x) >= 0) /* valid queue directory? */
1939 #define RS_QUEUEGROUP "queuegroup" /* ruleset for queue group selection */
1940
1941 #define NOW ((time_t) (-1)) /* queue return: now */
1942
1943 /* SuperSafe values */
1944 #define SAFE_NO 0 /* no fsync(): don't use... */
1945 #define SAFE_INTERACTIVE 1 /* limit fsync() in -odi */
1946 #define SAFE_REALLY 2 /* always fsync() */
1947 #define SAFE_REALLY_POSTMILTER 3 /* fsync() if milter says OK */
1948
1949 /* QueueMode bits */
1950 #define QM_NORMAL ' '
1951 #define QM_QUARANTINE 'Q'
1952 #define QM_LOST 'L'
1953
1954 /* Queue Run Limitations */
1955 struct queue_char
1956 {
1957 char *queue_match; /* string to match */
1958 bool queue_negate; /* or not match, if set */
1959 struct queue_char *queue_next;
1960 };
1961
1962 /* run_work_group() flags */
1963 #define RWG_NONE 0x0000
1964 #define RWG_FORK 0x0001
1965 #define RWG_VERBOSE 0x0002
1966 #define RWG_PERSISTENT 0x0004
1967 #define RWG_FORCE 0x0008
1968 #define RWG_RUNALL 0x0010
1969
1970 typedef struct queue_char QUEUE_CHAR;
1971
1972 EXTERN int volatile CurRunners; /* current number of runner children */
1973 EXTERN int MaxQueueRun; /* maximum number of jobs in one queue run */
1974 EXTERN int MaxQueueChildren; /* max # of forked queue children */
1975 EXTERN int MaxRunnersPerQueue; /* max # proc's active in queue group */
1976 EXTERN int NiceQueueRun; /* nice queue runs to this value */
1977 EXTERN int NumQueue; /* number of queue groups */
1978 EXTERN int QueueFileMode; /* mode on files in mail queue */
1979 EXTERN int QueueMode; /* which queue items to act upon */
1980 EXTERN int QueueSortOrder; /* queue sorting order algorithm */
1981 EXTERN time_t MinQueueAge; /* min delivery interval */
1982 EXTERN time_t QueueIntvl; /* intervals between running the queue */
1983 EXTERN char *QueueDir; /* location of queue directory */
1984 EXTERN QUEUE_CHAR *QueueLimitId; /* limit queue run to id */
1985 EXTERN QUEUE_CHAR *QueueLimitQuarantine; /* limit queue run to quarantine reason */
1986 EXTERN QUEUE_CHAR *QueueLimitRecipient; /* limit queue run to rcpt */
1987 EXTERN QUEUE_CHAR *QueueLimitSender; /* limit queue run to sender */
1988 EXTERN QUEUEGRP *Queue[MAXQUEUEGROUPS + 1]; /* queue groups */
1989
1990 /* functions */
1991 extern void assign_queueid __P((ENVELOPE *));
1992 extern ADDRESS *copyqueue __P((ADDRESS *, SM_RPOOL_T *));
1993 extern void cleanup_queues __P((void));
1994 extern bool doqueuerun __P((void));
1995 extern void initsys __P((ENVELOPE *));
1996 extern void loseqfile __P((ENVELOPE *, char *));
1997 extern int name2qid __P((char *));
1998 extern char *qid_printname __P((ENVELOPE *));
1999 extern char *qid_printqueue __P((int, int));
2000 extern void quarantine_queue __P((char *, int));
2001 extern char *queuename __P((ENVELOPE *, int));
2002 extern void queueup __P((ENVELOPE *, bool, bool));
2003 extern bool runqueue __P((bool, bool, bool, bool));
2004 extern bool run_work_group __P((int, int));
2005 extern void set_def_queueval __P((QUEUEGRP *, bool));
2006 extern void setup_queues __P((bool));
2007 extern bool setnewqueue __P((ENVELOPE *));
2008 extern bool shouldqueue __P((long, time_t));
2009 extern void sync_queue_time __P((void));
2010 extern void init_qid_alg __P((void));
2011 extern int print_single_queue __P((int, int));
2012 #if REQUIRES_DIR_FSYNC
2013 # define SYNC_DIR(path, panic) sync_dir(path, panic)
2014 extern void sync_dir __P((char *, bool));
2015 #else /* REQUIRES_DIR_FSYNC */
2016 # define SYNC_DIR(path, panic) ((void) 0)
2017 #endif /* REQUIRES_DIR_FSYNC */
2018
2019 /*
2020 ** Timeouts
2021 **
2022 ** Indicated values are the MINIMUM per RFC 1123 section 5.3.2.
2023 */
2024
2025 EXTERN struct
2026 {
2027 /* RFC 1123-specified timeouts [minimum value] */
2028 time_t to_initial; /* initial greeting timeout [5m] */
2029 time_t to_mail; /* MAIL command [5m] */
2030 time_t to_rcpt; /* RCPT command [5m] */
2031 time_t to_datainit; /* DATA initiation [2m] */
2032 time_t to_datablock; /* DATA block [3m] */
2033 time_t to_datafinal; /* DATA completion [10m] */
2034 time_t to_nextcommand; /* next command [5m] */
2035 /* following timeouts are not mentioned in RFC 1123 */
2036 time_t to_iconnect; /* initial connection timeout (first try) */
2037 time_t to_connect; /* initial connection timeout (later tries) */
2038 time_t to_aconnect; /* all connections timeout (MX and A records) */
2039 time_t to_rset; /* RSET command */
2040 time_t to_helo; /* HELO command */
2041 time_t to_quit; /* QUIT command */
2042 time_t to_miscshort; /* misc short commands (NOOP, VERB, etc) */
2043 time_t to_ident; /* IDENT protocol requests */
2044 time_t to_fileopen; /* opening :include: and .forward files */
2045 time_t to_control; /* process a control socket command */
2046 time_t to_lhlo; /* LMTP: LHLO command */
2047 #if SASL
2048 time_t to_auth; /* AUTH dialogue [10m] */
2049 #endif /* SASL */
2050 #if STARTTLS
2051 time_t to_starttls; /* STARTTLS dialogue [10m] */
2052 #endif /* STARTTLS */
2053 /* following are per message */
2054 time_t to_q_return[MAXTOCLASS]; /* queue return timeouts */
2055 time_t to_q_warning[MAXTOCLASS]; /* queue warning timeouts */
2056 time_t res_retrans[MAXRESTOTYPES]; /* resolver retransmit */
2057 int res_retry[MAXRESTOTYPES]; /* resolver retry */
2058 } TimeOuts;
2059
2060 /* timeout classes for return and warning timeouts */
2061 #define TOC_NORMAL 0 /* normal delivery */
2062 #define TOC_URGENT 1 /* urgent delivery */
2063 #define TOC_NONURGENT 2 /* non-urgent delivery */
2064 #define TOC_DSN 3 /* DSN delivery */
2065
2066 /* resolver timeout specifiers */
2067 #define RES_TO_FIRST 0 /* first attempt */
2068 #define RES_TO_NORMAL 1 /* subsequent attempts */
2069 #define RES_TO_DEFAULT 2 /* default value */
2070
2071 /* functions */
2072 extern void inittimeouts __P((char *, bool));
2073
2074 /*
2075 ** Interface probing
2076 */
2077
2078 #define DPI_PROBENONE 0 /* Don't probe any interfaces */
2079 #define DPI_PROBEALL 1 /* Probe all interfaces */
2080 #define DPI_SKIPLOOPBACK 2 /* Don't probe loopback interfaces */
2081
2082 /*
2083 ** Trace information
2084 */
2085
2086 /* macros for debugging flags */
2087 #define tTd(flag, level) (tTdvect[flag] >= (unsigned char)level)
2088 #define tTdlevel(flag) (tTdvect[flag])
2089
2090 /* variables */
2091 extern unsigned char tTdvect[100]; /* trace vector */
2092
2093 /*
2094 ** Miscellaneous information.
2095 */
2096
2097 /*
2098 ** The "no queue id" queue id for sm_syslog
2099 */
2100
2101 #define NOQID ""
2102
2103 #define CURHOSTNAME (CurHostName == NULL ? "local" : CurHostName)
2104
2105 /*
2106 ** Some in-line functions
2107 */
2108
2109 /* set exit status */
2110 #define setstat(s) { \
2111 if (ExitStat == EX_OK || ExitStat == EX_TEMPFAIL) \
2112 ExitStat = s; \
2113 }
2114
2115
2116 #define STRUCTCOPY(s, d) d = s
2117
2118 /* free a pointer if it isn't NULL and set it to NULL */
2119 #define SM_FREE_CLR(p) \
2120 if ((p) != NULL) \
2121 { \
2122 sm_free(p); \
2123 (p) = NULL; \
2124 } \
2125 else
2126
2127 /*
2128 ** Update a permanent string variable with a new value.
2129 ** The old value is freed, the new value is strdup'ed.
2130 **
2131 ** We use sm_pstrdup_x to duplicate the string because it raises
2132 ** an exception on error, and because it allocates "permanent storage"
2133 ** which is not expected to be freed before process exit.
2134 ** The latter is important for memory leak analysis.
2135 **
2136 ** If an exception occurs while strdup'ing the new value,
2137 ** then the variable remains set to the old value.
2138 ** That's why the strdup must occur before we free the old value.
2139 **
2140 ** The macro uses a do loop so that this idiom will work:
2141 ** if (...)
2142 ** PSTRSET(var, val1);
2143 ** else
2144 ** PSTRSET(var, val2);
2145 */
2146 #define PSTRSET(var, val) \
2147 do \
2148 { \
2149 char *_newval = sm_pstrdup_x(val); \
2150 if (var != NULL) \
2151 sm_free(var); \
2152 var = _newval; \
2153 } while (0)
2154
2155 #define _CHECK_RESTART \
2156 do \
2157 { \
2158 if (ShutdownRequest != NULL) \
2159 shutdown_daemon(); \
2160 else if (RestartRequest != NULL) \
2161 restart_daemon(); \
2162 else if (RestartWorkGroup) \
2163 restart_marked_work_groups(); \
2164 } while (0)
2165
2166 # define CHECK_RESTART _CHECK_RESTART
2167
2168 /* reply types (text in SmtpMsgBuffer) */
2169 #define XS_DEFAULT 0
2170 #define XS_STARTTLS 1
2171 #define XS_AUTH 2
2172
2173 /*
2174 ** Global variables.
2175 */
2176
2177 #if _FFR_ADDR_TYPE_MODES
2178 EXTERN bool AddrTypeModes; /* addr_type: extra "mode" information */
2179 #endif /* _FFR_ADDR_TYPE_MODES */
2180 EXTERN bool AllowBogusHELO; /* allow syntax errors on HELO command */
2181 EXTERN bool CheckAliases; /* parse addresses during newaliases */
2182 #if _FFR_QUEUE_RUN_PARANOIA
2183 EXTERN int CheckQueueRunners; /* check whether queue runners are OK */
2184 #endif /* _FFR_QUEUE_RUN_PARANOIA */
2185 EXTERN bool ColonOkInAddr; /* single colon legal in address */
2186 #if !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_)
2187 EXTERN bool ConfigFileRead; /* configuration file has been read */
2188 #endif /* !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) */
2189 EXTERN bool DisConnected; /* running with OutChannel redirect to transcript file */
2190 EXTERN bool DontExpandCnames; /* do not $[...$] expand CNAMEs */
2191 EXTERN bool DontInitGroups; /* avoid initgroups() because of NIS cost */
2192 EXTERN bool DontLockReadFiles; /* don't read lock support files */
2193 EXTERN bool DontPruneRoutes; /* don't prune source routes */
2194 EXTERN bool ForkQueueRuns; /* fork for each job when running the queue */
2195 EXTERN bool FromFlag; /* if set, "From" person is explicit */
2196 EXTERN bool GrabTo; /* if set, get recipients from msg */
2197 EXTERN bool EightBitAddrOK; /* we'll let 8-bit addresses through */
2198 EXTERN bool HasEightBits; /* has at least one eight bit input byte */
2199 EXTERN bool HasWildcardMX; /* don't use MX records when canonifying */
2200 EXTERN bool HoldErrs; /* only output errors to transcript */
2201 EXTERN bool IgnoreHostStatus; /* ignore long term host status files */
2202 EXTERN bool IgnrDot; /* don't let dot end messages */
2203 EXTERN bool LogUsrErrs; /* syslog user errors (e.g., SMTP RCPT cmd) */
2204 EXTERN bool MatchGecos; /* look for user names in gecos field */
2205 EXTERN bool MeToo; /* send to the sender also */
2206 EXTERN bool NoAlias; /* suppress aliasing */
2207 EXTERN bool NoConnect; /* don't connect to non-local mailers */
2208 EXTERN bool OnlyOneError; /* .... or only want to give one SMTP reply */
2209 EXTERN bool QuickAbort; /* .... but only if we want a quick abort */
2210 #if REQUIRES_DIR_FSYNC
2211 EXTERN bool RequiresDirfsync; /* requires fsync() for directory */
2212 #endif /* REQUIRES_DIR_FSYNC */
2213 EXTERN bool volatile RestartWorkGroup; /* daemon needs to restart some work groups */
2214 EXTERN bool RrtImpliesDsn; /* turn Return-Receipt-To: into DSN */
2215 EXTERN bool SaveFrom; /* save leading "From" lines */
2216 EXTERN bool SendMIMEErrors; /* send error messages in MIME format */
2217 EXTERN bool SevenBitInput; /* force 7-bit data on input */
2218 EXTERN bool SingleLineFromHeader; /* force From: header to be one line */
2219 EXTERN bool SingleThreadDelivery; /* single thread hosts on delivery */
2220 EXTERN bool SoftBounce; /* replace 5xy by 4xy (for testing) */
2221 EXTERN bool volatile StopRequest; /* stop sending output */
2222 EXTERN bool SuprErrs; /* set if we are suppressing errors */
2223 EXTERN bool TryNullMXList; /* if we are the best MX, try host directly */
2224 EXTERN bool UseMSP; /* mail submission: group writable queue ok? */
2225 EXTERN bool WorkAroundBrokenAAAA; /* some nameservers return SERVFAIL on AAAA queries */
2226 EXTERN bool UseErrorsTo; /* use Errors-To: header (back compat) */
2227 EXTERN bool UseNameServer; /* using DNS -- interpret h_errno & MX RRs */
2228 EXTERN char InetMode; /* default network for daemon mode */
2229 EXTERN char OpMode; /* operation mode, see below */
2230 EXTERN char SpaceSub; /* substitution for <lwsp> */
2231 EXTERN int BadRcptThrottle; /* Throttle rejected RCPTs per SMTP message */
2232 EXTERN int CheckpointInterval; /* queue file checkpoint interval */
2233 EXTERN int ConfigLevel; /* config file level */
2234 EXTERN int ConnRateThrottle; /* throttle for SMTP connection rate */
2235 EXTERN int volatile CurChildren; /* current number of daemonic children */
2236 EXTERN int CurrentLA; /* current load average */
2237 EXTERN int DefaultNotify; /* default DSN notification flags */
2238 EXTERN int DelayLA; /* load average to delay connections */
2239 EXTERN int DontProbeInterfaces; /* don't probe interfaces for names */
2240 EXTERN int Errors; /* set if errors (local to single pass) */
2241 EXTERN int ExitStat; /* exit status code */
2242 EXTERN int FastSplit; /* fast initial splitting of envelopes */
2243 EXTERN int FileMode; /* mode on files */
2244 EXTERN int LineNumber; /* line number in current input */
2245 EXTERN int LogLevel; /* level of logging to perform */
2246 EXTERN int MaxAliasRecursion; /* maximum depth of alias recursion */
2247 EXTERN int MaxChildren; /* maximum number of daemonic children */
2248 EXTERN int MaxForwardEntries; /* maximum number of forward entries */
2249 EXTERN int MaxHeadersLength; /* max length of headers */
2250 EXTERN int MaxHopCount; /* max # of hops until bounce */
2251 EXTERN int MaxMacroRecursion; /* maximum depth of macro recursion */
2252 EXTERN int MaxMimeFieldLength; /* maximum MIME field length */
2253 EXTERN int MaxMimeHeaderLength; /* maximum MIME header length */
2254 EXTERN int MaxNOOPCommands; /* max "noise" commands before slowdown */
2255
2256 EXTERN int MaxRcptPerMsg; /* max recipients per SMTP message */
2257 EXTERN int MaxRuleRecursion; /* maximum depth of ruleset recursion */
2258 #if _FFR_MSG_ACCEPT
2259 EXTERN char *MessageAccept; /* "Message accepted for delivery" reply text */
2260 #endif /* _FFR_MSG_ACCEPT */
2261
2262 EXTERN int MimeMode; /* MIME processing mode */
2263 EXTERN int NoRecipientAction;
2264
2265 #if SM_CONF_SHM
2266 EXTERN int Numfilesys; /* number of queue file systems */
2267 EXTERN int *PNumFileSys;
2268 # define NumFileSys (*PNumFileSys)
2269 # else /* SM_CONF_SHM */
2270 EXTERN int NumFileSys; /* number of queue file systems */
2271 # endif /* SM_CONF_SHM */
2272
2273 EXTERN int QueueLA; /* load average starting forced queueing */
2274 EXTERN int RefuseLA; /* load average refusing connections */
2275 EXTERN time_t RejectLogInterval; /* time btwn log msgs while refusing */
2276 #if _FFR_MEMSTAT
2277 EXTERN long QueueLowMem; /* low memory starting forced queueing */
2278 EXTERN long RefuseLowMem; /* low memory refusing connections */
2279 EXTERN char *MemoryResource;/* memory resource to look up */
2280 #endif /* _FFR_MEMSTAT */
2281 EXTERN int SuperSafe; /* be extra careful, even if expensive */
2282 EXTERN int VendorCode; /* vendor-specific operation enhancements */
2283 EXTERN int Verbose; /* set if blow-by-blow desired */
2284 EXTERN gid_t DefGid; /* default gid to run as */
2285 EXTERN gid_t RealGid; /* real gid of caller */
2286 EXTERN gid_t RunAsGid; /* GID to become for bulk of run */
2287 EXTERN gid_t EffGid; /* effective gid */
2288 #if SM_CONF_SHM
2289 EXTERN key_t ShmKey; /* shared memory key */
2290 EXTERN char *ShmKeyFile; /* shared memory key file */
2291 #endif /* SM_CONF_SHM */
2292 EXTERN pid_t CurrentPid; /* current process id */
2293 EXTERN pid_t DaemonPid; /* process id of daemon */
2294 EXTERN pid_t PidFilePid; /* daemon/queue runner who wrote pid file */
2295 EXTERN uid_t DefUid; /* default uid to run as */
2296 EXTERN uid_t RealUid; /* real uid of caller */
2297 EXTERN uid_t RunAsUid; /* UID to become for bulk of run */
2298 EXTERN uid_t TrustedUid; /* uid of trusted user for files and startup */
2299 EXTERN size_t DataFileBufferSize; /* size of buf for in-core data file */
2300 EXTERN time_t DeliverByMin; /* deliver by minimum time */
2301 EXTERN time_t DialDelay; /* delay between dial-on-demand tries */
2302 EXTERN time_t SafeAlias; /* interval to wait until @:@ in alias file */
2303 EXTERN time_t ServiceCacheMaxAge; /* refresh interval for cache */
2304 EXTERN size_t XscriptFileBufferSize; /* size of buf for in-core transcript file */
2305 EXTERN MODE_T OldUmask; /* umask when sendmail starts up */
2306 EXTERN long MaxMessageSize; /* advertised max size we will accept */
2307 EXTERN long MinBlocksFree; /* min # of blocks free on queue fs */
2308 EXTERN long QueueFactor; /* slope of queue function */
2309 EXTERN long WkClassFact; /* multiplier for message class -> priority */
2310 EXTERN long WkRecipFact; /* multiplier for # of recipients -> priority */
2311 EXTERN long WkTimeFact; /* priority offset each time this job is run */
2312 EXTERN char *ControlSocketName; /* control socket filename [control.c] */
2313 EXTERN char *CurHostName; /* current host we are dealing with */
2314 EXTERN char *DeadLetterDrop; /* path to dead letter office */
2315 EXTERN char *DefUser; /* default user to run as (from DefUid) */
2316 EXTERN char *DefaultCharSet; /* default character set for MIME */
2317 EXTERN char *DoubleBounceAddr; /* where to send double bounces */
2318 EXTERN char *ErrMsgFile; /* file to prepend to all error messages */
2319 EXTERN char *FallbackMX; /* fall back MX host */
2320 EXTERN char *FallbackSmartHost; /* fall back smart host */
2321 EXTERN char *FileName; /* name to print on error messages */
2322 EXTERN char *ForwardPath; /* path to search for .forward files */
2323 EXTERN char *HeloName; /* hostname to announce in HELO */
2324 EXTERN char *HelpFile; /* location of SMTP help file */
2325 EXTERN char *HostStatDir; /* location of host status information */
2326 EXTERN char *HostsFile; /* path to /etc/hosts file */
2327 extern char *Mbdb; /* mailbox database type */
2328 EXTERN char *MustQuoteChars; /* quote these characters in phrases */
2329 EXTERN char *MyHostName; /* name of this host for SMTP messages */
2330 EXTERN char *OperatorChars; /* operators (old $o macro) */
2331 EXTERN char *PidFile; /* location of proc id file [conf.c] */
2332 EXTERN char *PostMasterCopy; /* address to get errs cc's */
2333 EXTERN char *ProcTitlePrefix; /* process title prefix */
2334 EXTERN char *RealHostName; /* name of host we are talking to */
2335 EXTERN char *RealUserName; /* real user name of caller */
2336 EXTERN char *volatile RestartRequest;/* a sendmail restart has been requested */
2337 EXTERN char *RunAsUserName; /* user to become for bulk of run */
2338 EXTERN char *SafeFileEnv; /* chroot location for file delivery */
2339 EXTERN char *ServiceSwitchFile; /* backup service switch */
2340 EXTERN char *volatile ShutdownRequest;/* a sendmail shutdown has been requested */
2341 EXTERN char *SmtpGreeting; /* SMTP greeting message (old $e macro) */
2342 EXTERN char *SmtpPhase; /* current phase in SMTP processing */
2343 EXTERN char SmtpError[MAXLINE]; /* save failure error messages */
2344 EXTERN char *StatFile; /* location of statistics summary */
2345 EXTERN char *TimeZoneSpec; /* override time zone specification */
2346 EXTERN char *UdbSpec; /* user database source spec */
2347 EXTERN char *UnixFromLine; /* UNIX From_ line (old $l macro) */
2348 EXTERN char **ExternalEnviron; /* saved user (input) environment */
2349 EXTERN char **SaveArgv; /* argument vector for re-execing */
2350 EXTERN BITMAP256 DontBlameSendmail; /* DontBlameSendmail bits */
2351 EXTERN SM_FILE_T *InChannel; /* input connection */
2352 EXTERN SM_FILE_T *OutChannel; /* output connection */
2353 EXTERN SM_FILE_T *TrafficLogFile; /* file in which to log all traffic */
2354 #if HESIOD
2355 EXTERN void *HesiodContext;
2356 #endif /* HESIOD */
2357 EXTERN ENVELOPE *CurEnv; /* envelope currently being processed */
2358 EXTERN char *RuleSetNames[MAXRWSETS]; /* ruleset number to name */
2359 EXTERN char *UserEnviron[MAXUSERENVIRON + 1];
2360 EXTERN struct rewrite *RewriteRules[MAXRWSETS];
2361 EXTERN struct termescape TermEscape; /* terminal escape codes */
2362 EXTERN SOCKADDR ConnectOnlyTo; /* override connection address (for testing) */
2363 EXTERN SOCKADDR RealHostAddr; /* address of host we are talking to */
2364 extern const SM_EXC_TYPE_T EtypeQuickAbort; /* type of a QuickAbort exception */
2365
2366
2367 EXTERN int ConnectionRateWindowSize;
2368
2369 /*
2370 ** Declarations of useful functions
2371 */
2372
2373 /* Transcript file */
2374 extern void closexscript __P((ENVELOPE *));
2375 extern void openxscript __P((ENVELOPE *));
2376
2377 /* error related */
2378 extern void buffer_errors __P((void));
2379 extern void flush_errors __P((bool));
2380 extern void PRINTFLIKE(1, 2) message __P((const char *, ...));
2381 extern void PRINTFLIKE(1, 2) nmessage __P((const char *, ...));
2382 extern void PRINTFLIKE(1, 2) syserr __P((const char *, ...));
2383 extern void PRINTFLIKE(2, 3) usrerrenh __P((char *, const char *, ...));
2384 extern void PRINTFLIKE(1, 2) usrerr __P((const char *, ...));
2385 extern int isenhsc __P((const char *, int));
2386 extern int extenhsc __P((const char *, int, char *));
2387
2388 /* alias file */
2389 extern void alias __P((ADDRESS *, ADDRESS **, int, ENVELOPE *));
2390 extern bool aliaswait __P((MAP *, char *, bool));
2391 extern void forward __P((ADDRESS *, ADDRESS **, int, ENVELOPE *));
2392 extern void readaliases __P((MAP *, SM_FILE_T *, bool, bool));
2393 extern bool rebuildaliases __P((MAP *, bool));
2394 extern void setalias __P((char *));
2395
2396 /* logging */
2397 extern void logdelivery __P((MAILER *, MCI *, char *, const char *, ADDRESS *, time_t, ENVELOPE *));
2398 extern void logsender __P((ENVELOPE *, char *));
2399 extern void PRINTFLIKE(3, 4) sm_syslog __P((int, const char *, const char *, ...));
2400
2401 /* SMTP */
2402 extern void giveresponse __P((int, char *, MAILER *, MCI *, ADDRESS *, time_t, ENVELOPE *, ADDRESS *));
2403 extern int reply __P((MAILER *, MCI *, ENVELOPE *, time_t, void (*)__P((char *, bool, MAILER *, MCI *, ENVELOPE *)), char **, int));
2404 extern void smtp __P((char *volatile, BITMAP256, ENVELOPE *volatile));
2405 #if SASL
2406 extern int smtpauth __P((MAILER *, MCI *, ENVELOPE *));
2407 #endif /* SASL */
2408 extern int smtpdata __P((MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t));
2409 extern int smtpgetstat __P((MAILER *, MCI *, ENVELOPE *));
2410 extern int smtpmailfrom __P((MAILER *, MCI *, ENVELOPE *));
2411 extern void smtpmessage __P((char *, MAILER *, MCI *, ...));
2412 extern void smtpinit __P((MAILER *, MCI *, ENVELOPE *, bool));
2413 extern char *smtptodsn __P((int));
2414 extern int smtpprobe __P((MCI *));
2415 extern void smtpquit __P((MAILER *, MCI *, ENVELOPE *));
2416 extern int smtprcpt __P((ADDRESS *, MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t));
2417 extern void smtprset __P((MAILER *, MCI *, ENVELOPE *));
2418
2419 #define REPLYTYPE(r) ((r) / 100) /* first digit of reply code */
2420 #define ISSMTPCODE(c) (isascii(c[0]) && isdigit(c[0]) && \
2421 isascii(c[1]) && isdigit(c[1]) && \
2422 isascii(c[2]) && isdigit(c[2]))
2423 #define ISSMTPREPLY(c) (ISSMTPCODE(c) && \
2424 (c[3] == ' ' || c[3] == '-' || c[3] == '\0'))
2425
2426 /* delivery */
2427 extern pid_t dowork __P((int, int, char *, bool, bool, ENVELOPE *));
2428 extern pid_t doworklist __P((ENVELOPE *, bool, bool));
2429 extern int endmailer __P((MCI *, ENVELOPE *, char **));
2430 extern int mailfile __P((char *volatile, MAILER *volatile, ADDRESS *, volatile long, ENVELOPE *));
2431 extern void sendall __P((ENVELOPE *, int));
2432
2433 /* stats */
2434 #define STATS_NORMAL 'n'
2435 #define STATS_QUARANTINE 'q'
2436 #define STATS_REJECT 'r'
2437 #define STATS_CONNECT 'c'
2438
2439 extern void markstats __P((ENVELOPE *, ADDRESS *, int));
2440 extern void clearstats __P((void));
2441 extern void poststats __P((char *));
2442
2443 /* control socket */
2444 extern void closecontrolsocket __P((bool));
2445 extern void clrcontrol __P((void));
2446 extern void control_command __P((int, ENVELOPE *));
2447 extern int opencontrolsocket __P((void));
2448
2449 #if MILTER
2450 /* milter functions */
2451 extern void milter_config __P((char *, struct milter **, int));
2452 extern void milter_setup __P((char *));
2453 extern void milter_set_option __P((char *, char *, bool));
2454 extern bool milter_init __P((ENVELOPE *, char *, milters_T *));
2455 extern void milter_quit __P((ENVELOPE *));
2456 extern void milter_abort __P((ENVELOPE *));
2457 extern char *milter_connect __P((char *, SOCKADDR, ENVELOPE *, char *));
2458 extern char *milter_helo __P((char *, ENVELOPE *, char *));
2459 extern char *milter_envfrom __P((char **, ENVELOPE *, char *));
2460 extern char *milter_data_cmd __P((ENVELOPE *, char *));
2461 extern char *milter_envrcpt __P((char **, ENVELOPE *, char *, bool));
2462 extern char *milter_data __P((ENVELOPE *, char *));
2463 extern char *milter_unknown __P((char *, ENVELOPE *, char *));
2464 #endif /* MILTER */
2465
2466 extern char *addquotes __P((char *, SM_RPOOL_T *));
2467 extern char *arpadate __P((char *));
2468 extern bool atobool __P((char *));
2469 extern int atooct __P((char *));
2470 extern void auth_warning __P((ENVELOPE *, const char *, ...));
2471 extern int blocksignal __P((int));
2472 extern bool bitintersect __P((BITMAP256, BITMAP256));
2473 extern bool bitzerop __P((BITMAP256));
2474 extern int check_bodytype __P((char *));
2475 extern void buildfname __P((char *, char *, char *, int));
2476 extern bool chkclientmodifiers __P((int));
2477 extern bool chkdaemonmodifiers __P((int));
2478 extern int checkcompat __P((ADDRESS *, ENVELOPE *));
2479 #ifdef XDEBUG
2480 extern void checkfd012 __P((char *));
2481 extern void checkfdopen __P((int, char *));
2482 #endif /* XDEBUG */
2483 extern void checkfds __P((char *));
2484 extern bool chownsafe __P((int, bool));
2485 extern void cleanstrcpy __P((char *, char *, int));
2486 #if SM_CONF_SHM
2487 extern void cleanup_shm __P((bool));
2488 #endif /* SM_CONF_SHM */
2489 extern void close_sendmail_pid __P((void));
2490 extern void clrdaemon __P((void));
2491 extern void collect __P((SM_FILE_T *, bool, HDR **, ENVELOPE *, bool));
2492 extern bool connection_rate_check __P((SOCKADDR *, ENVELOPE *));
2493 extern time_t convtime __P((char *, int));
2494 extern char **copyplist __P((char **, bool, SM_RPOOL_T *));
2495 extern void copy_class __P((int, int));
2496 extern int count_open_connections __P((SOCKADDR *));
2497 extern time_t curtime __P((void));
2498 extern char *defcharset __P((ENVELOPE *));
2499 extern char *denlstring __P((char *, bool, bool));
2500 extern void dferror __P((SM_FILE_T *volatile, char *, ENVELOPE *));
2501 extern void disconnect __P((int, ENVELOPE *));
2502 extern void disk_status __P((SM_FILE_T *, char *));
2503 extern bool dns_getcanonname __P((char *, int, bool, int *, int *));
2504 extern pid_t dofork __P((void));
2505 extern int drop_privileges __P((bool));
2506 extern int dsntoexitstat __P((char *));
2507 extern void dumpfd __P((int, bool, bool));
2508 #if SM_HEAP_CHECK
2509 extern void dumpstab __P((void));
2510 #endif /* SM_HEAP_CHECK */
2511 extern void dumpstate __P((char *));
2512 extern bool enoughdiskspace __P((long, ENVELOPE *));
2513 extern char *exitstat __P((char *));
2514 extern void fatal_error __P((SM_EXC_T *));
2515 extern char *fgetfolded __P((char *, int *, SM_FILE_T *));
2516 extern void fill_fd __P((int, char *));
2517 extern char *find_character __P((char *, int));
2518 extern int finduser __P((char *, bool *, SM_MBDB_T *));
2519 extern void finis __P((bool, bool, volatile int));
2520 extern void fixcrlf __P((char *, bool));
2521 extern long freediskspace __P((const char *, long *));
2522 #if NETINET6 && NEEDSGETIPNODE
2523 extern void freehostent __P((struct hostent *));
2524 #endif /* NETINET6 && NEEDSGETIPNODE */
2525 extern char *get_column __P((char *, int, int, char *, int));
2526 extern char *getauthinfo __P((int, bool *));
2527 extern int getdtsize __P((void));
2528 extern int getla __P((void));
2529 extern char *getmodifiers __P((char *, BITMAP256));
2530 extern BITMAP256 *getrequests __P((ENVELOPE *));
2531 extern char *getvendor __P((int));
2532 extern void help __P((char *, ENVELOPE *));
2533 extern void init_md __P((int, char **));
2534 extern void initdaemon __P((void));
2535 extern void inithostmaps __P((void));
2536 extern void initmacros __P((ENVELOPE *));
2537 extern void initsetproctitle __P((int, char **, char **));
2538 extern void init_vendor_macros __P((ENVELOPE *));
2539 extern SIGFUNC_DECL intsig __P((int));
2540 extern bool isloopback __P((SOCKADDR sa));
2541 extern void load_if_names __P((void));
2542 extern bool lockfile __P((int, char *, char *, int));
2543 extern void log_sendmail_pid __P((ENVELOPE *));
2544 extern void logundelrcpts __P((ENVELOPE *, char *, int, bool));
2545 extern char lower __P((int));
2546 extern void makelower __P((char *));
2547 extern int makeconnection_ds __P((char *, MCI *));
2548 extern int makeconnection __P((char *, volatile unsigned int, MCI *, ENVELOPE *, time_t));
2549 extern void makeworkgroups __P((void));
2550 extern void markfailure __P((ENVELOPE *, ADDRESS *, MCI *, int, bool));
2551 extern void mark_work_group_restart __P((int, int));
2552 extern MCI *mci_new __P((SM_RPOOL_T *));
2553 extern char *munchstring __P((char *, char **, int));
2554 extern struct hostent *myhostname __P((char *, int));
2555 extern char *newstr __P((const char *));
2556 #if NISPLUS
2557 extern char *nisplus_default_domain __P((void)); /* extern for Sun */
2558 #endif /* NISPLUS */
2559 extern bool path_is_dir __P((char *, bool));
2560 extern int pickqdir __P((QUEUEGRP *qg, long fsize, ENVELOPE *e));
2561 extern char *pintvl __P((time_t, bool));
2562 extern void printav __P((SM_FILE_T *, char **));
2563 extern void printmailer __P((SM_FILE_T *, MAILER *));
2564 extern void printnqe __P((SM_FILE_T *, char *));
2565 extern void printopenfds __P((bool));
2566 extern void printqueue __P((void));
2567 extern void printrules __P((void));
2568 extern pid_t prog_open __P((char **, int *, ENVELOPE *));
2569 extern bool putline __P((char *, MCI *));
2570 extern bool putxline __P((char *, size_t, MCI *, int));
2571 extern void queueup_macros __P((int, SM_FILE_T *, ENVELOPE *));
2572 extern void readcf __P((char *, bool, ENVELOPE *));
2573 extern SIGFUNC_DECL reapchild __P((int));
2574 extern int releasesignal __P((int));
2575 extern void resetlimits __P((void));
2576 extern void restart_daemon __P((void));
2577 extern void restart_marked_work_groups __P((void));
2578 extern bool rfc822_string __P((char *));
2579 extern void rmexpstab __P((void));
2580 extern bool savemail __P((ENVELOPE *, bool));
2581 extern void seed_random __P((void));
2582 extern void sendtoargv __P((char **, ENVELOPE *));
2583 extern void setclientoptions __P((char *));
2584 extern bool setdaemonoptions __P((char *));
2585 extern void setdefaults __P((ENVELOPE *));
2586 extern void setdefuser __P((void));
2587 extern bool setvendor __P((char *));
2588 extern void set_op_mode __P((int));
2589 extern void setoption __P((int, char *, bool, bool, ENVELOPE *));
2590 extern sigfunc_t setsignal __P((int, sigfunc_t));
2591 extern void sm_setuserenv __P((const char *, const char *));
2592 extern void settime __P((ENVELOPE *));
2593 extern char *sfgets __P((char *, int, SM_FILE_T *, time_t, char *));
2594 extern char *shortenstring __P((const char *, size_t));
2595 extern char *shorten_hostname __P((char []));
2596 extern bool shorten_rfc822_string __P((char *, size_t));
2597 extern void shutdown_daemon __P((void));
2598 extern void sm_closefrom __P((int lowest, int highest));
2599 extern void sm_close_on_exec __P((int lowest, int highest));
2600 extern struct hostent *sm_gethostbyname __P((char *, int));
2601 extern struct hostent *sm_gethostbyaddr __P((char *, int, int));
2602 extern void sm_getla __P((void));
2603 extern struct passwd *sm_getpwnam __P((char *));
2604 extern struct passwd *sm_getpwuid __P((UID_T));
2605 extern void sm_setproctitle __P((bool, ENVELOPE *, const char *, ...));
2606 extern pid_t sm_wait __P((int *));
2607 extern bool split_by_recipient __P((ENVELOPE *e));
2608 extern void stop_sendmail __P((void));
2609 extern void stripbackslash __P((char *));
2610 extern bool strreplnonprt __P((char *, int));
2611 extern bool strcontainedin __P((bool, char *, char *));
2612 extern int switch_map_find __P((char *, char *[], short []));
2613 #if STARTTLS
2614 extern void tls_set_verify __P((SSL_CTX *, SSL *, bool));
2615 #endif /* STARTTLS */
2616 extern bool transienterror __P((int));
2617 extern void truncate_at_delim __P((char *, size_t, int));
2618 extern void tTflag __P((char *));
2619 extern void tTsetup __P((unsigned char *, unsigned int, char *));
2620 extern SIGFUNC_DECL tick __P((int));
2621 extern char *ttypath __P((void));
2622 extern void unlockqueue __P((ENVELOPE *));
2623 #if !HASUNSETENV
2624 extern void unsetenv __P((char *));
2625 #endif /* !HASUNSETENV */
2626
2627 /* update file system information: +/- some blocks */
2628 #if SM_CONF_SHM
2629 extern void upd_qs __P((ENVELOPE *, bool, bool, char *));
2630 # define updfs(e, count, space, where) upd_qs(e, count, space, where)
2631 #else /* SM_CONF_SHM */
2632 # define updfs(e, count, space, where)
2633 # define upd_qs(e, count, space, where)
2634 #endif /* SM_CONF_SHM */
2635
2636 extern char *username __P((void));
2637 extern bool usershellok __P((char *, char *));
2638 extern void vendor_post_defaults __P((ENVELOPE *));
2639 extern void vendor_pre_defaults __P((ENVELOPE *));
2640 extern int waitfor __P((pid_t));
2641 extern bool writable __P((char *, ADDRESS *, long));
2642 #if SM_HEAP_CHECK
2643 # define xalloc(size) xalloc_tagged(size, __FILE__, __LINE__)
2644 extern char *xalloc_tagged __P((int, char*, int));
2645 #else /* SM_HEAP_CHECK */
2646 extern char *xalloc __P((int));
2647 #endif /* SM_HEAP_CHECK */
2648 extern void xputs __P((SM_FILE_T *, const char *));
2649 extern char *xtextify __P((char *, char *));
2650 extern bool xtextok __P((char *));
2651 extern int xunlink __P((char *));
2652 extern char *xuntextify __P((char *));
2653
2654
2655 #undef EXTERN
2656 #endif /* ! _SENDMAIL_H */
Port diff from OpenBSD to DragonFly