2 * Copyright (c) 1998-2003 Sendmail, Inc. and its suppliers.
4 * Copyright (c) 1983, 1995-1997 Eric P. Allman. All rights reserved.
5 * Copyright (c) 1988, 1993
6 * The Regents of the University of California. All rights reserved.
8 * By using this file, you agree to the terms and conditions set
9 * forth in the LICENSE file which can be found at the top level of
10 * the sendmail distribution.
16 SM_RCSID("@(#)$Id: envelope.c,v 8.294 2005/02/16 23:38:51 ca Exp $")
19 ** CLRSESSENVELOPE -- clear session oriented data in an envelope
22 ** e -- the envelope to clear.
33 macdefine(&e->e_macro, A_PERM, macid("{auth_type}"), "");
34 macdefine(&e->e_macro, A_PERM, macid("{auth_authen}"), "");
35 macdefine(&e->e_macro, A_PERM, macid("{auth_author}"), "");
36 macdefine(&e->e_macro, A_PERM, macid("{auth_ssf}"), "");
39 macdefine(&e->e_macro, A_PERM, macid("{cert_issuer}"), "");
40 macdefine(&e->e_macro, A_PERM, macid("{cert_subject}"), "");
41 macdefine(&e->e_macro, A_PERM, macid("{cipher_bits}"), "");
42 macdefine(&e->e_macro, A_PERM, macid("{cipher}"), "");
43 macdefine(&e->e_macro, A_PERM, macid("{tls_version}"), "");
44 macdefine(&e->e_macro, A_PERM, macid("{verify}"), "");
46 macdefine(&e->e_macro, A_PERM, macid("{alg_bits}"), "");
47 macdefine(&e->e_macro, A_PERM, macid("{cn_issuer}"), "");
48 macdefine(&e->e_macro, A_PERM, macid("{cn_subject}"), "");
49 # endif /* _FFR_TLS_1 */
54 ** NEWENVELOPE -- fill in a new envelope
56 ** Supports inheritance.
59 ** e -- the new envelope to fill in.
60 ** parent -- the envelope to be the parent of e.
61 ** rpool -- either NULL, or a pointer to a resource pool
62 ** from which envelope memory is allocated, and
63 ** to which envelope resources are attached.
73 newenvelope(e, parent, rpool)
75 register ENVELOPE *parent;
79 ** This code used to read:
80 ** if (e == parent && e->e_parent != NULL)
81 ** parent = e->e_parent;
82 ** So if e == parent && e->e_parent == NULL then we would
83 ** set e->e_parent = e, which creates a loop in the e_parent chain.
84 ** This meant macvalue() could go into an infinite loop.
89 clearenvelope(e, true, rpool);
91 memmove((char *) &e->e_from,
92 (char *) &NullAddress,
95 memmove((char *) &e->e_from,
96 (char *) &CurEnv->e_from,
100 e->e_ctime = curtime();
103 e->e_msgpriority = parent->e_msgsize;
104 if (parent->e_quarmsg == NULL)
107 macdefine(&e->e_macro, A_PERM,
108 macid("{quarantine}"), "");
112 e->e_quarmsg = sm_rpool_strdup_x(rpool,
114 macdefine(&e->e_macro, A_PERM,
115 macid("{quarantine}"), e->e_quarmsg);
118 e->e_puthdr = putheader;
119 e->e_putbody = putbody;
120 if (CurEnv->e_xfp != NULL)
121 (void) sm_io_flush(CurEnv->e_xfp, SM_TIME_DEFAULT);
126 /* values for msg_timeout, see also IS_* below for usage (bit layout) */
127 #define MSG_T_O 0x01 /* normal timeout */
128 #define MSG_T_O_NOW 0x02 /* NOW timeout */
129 #define MSG_NOT_BY 0x04 /* Deliver-By time exceeded, mode R */
130 #define MSG_WARN 0x10 /* normal queue warning */
131 #define MSG_WARN_BY 0x20 /* Deliver-By time exceeded, mode N */
133 #define IS_MSG_ERR(x) (((x) & 0x0f) != 0) /* return an error */
135 /* immediate return */
136 #define IS_IMM_RET(x) (((x) & (MSG_T_O_NOW|MSG_NOT_BY)) != 0)
137 #define IS_MSG_WARN(x) (((x) & 0xf0) != 0) /* return a warning */
140 ** DROPENVELOPE -- deallocate an envelope.
143 ** e -- the envelope to deallocate.
144 ** fulldrop -- if set, do return receipts.
145 ** split -- if true, split by recipient if message is queued up
151 ** housekeeping necessary to dispose of an envelope.
152 ** Unlocks this queue file.
156 dropenvelope(e, fulldrop, split)
157 register ENVELOPE *e;
162 bool queueit = false;
164 bool failure_return = false;
165 bool delay_return = false;
166 bool success_return = false;
167 bool pmnotify = bitset(EF_PM_NOTIFY, e->e_flags);
176 sm_dprintf("dropenvelope %p: id=", e);
177 xputs(sm_debug_file(), e->e_id);
178 sm_dprintf(", flags=");
182 sm_dprintf("sendq=");
183 printaddr(sm_debug_file(), e->e_sendqueue, true);
188 sm_syslog(LOG_DEBUG, id,
189 "dropenvelope, e_flags=0x%lx, OpMode=%c, pid=%d",
190 e->e_flags, OpMode, (int) CurrentPid);
192 /* we must have an id to remove disk files */
196 /* if verify-only mode, we can skip most of this */
197 if (OpMode == MD_VERIFY)
200 if (LogLevel > 4 && bitset(EF_LOGSENDER, e->e_flags))
202 e->e_flags &= ~EF_LOGSENDER;
204 /* post statistics */
208 ** Extract state information from dregs of send list.
212 if (now >= e->e_ctime + TimeOuts.to_q_return[e->e_timeoutclass])
213 msg_timeout = MSG_T_O;
214 if (IS_DLVR_RETURN(e) && e->e_deliver_by > 0 &&
215 now >= e->e_ctime + e->e_deliver_by &&
216 !bitset(EF_RESPONSE, e->e_flags))
218 msg_timeout = MSG_NOT_BY;
219 e->e_flags |= EF_FATALERRS|EF_CLRQUEUE;
221 else if (TimeOuts.to_q_return[e->e_timeoutclass] == NOW &&
222 !bitset(EF_RESPONSE, e->e_flags))
224 msg_timeout = MSG_T_O_NOW;
225 e->e_flags |= EF_FATALERRS|EF_CLRQUEUE;
228 e->e_flags &= ~EF_QUEUERUN;
229 for (q = e->e_sendqueue; q != NULL; q = q->q_next)
231 if (QS_IS_UNDELIVERED(q->q_state))
234 /* see if a notification is needed */
235 if (bitset(QPINGONFAILURE, q->q_flags) &&
236 ((IS_MSG_ERR(msg_timeout) &&
237 QS_IS_UNDELIVERED(q->q_state)) ||
238 QS_IS_BADADDR(q->q_state) ||
239 IS_IMM_RET(msg_timeout)))
241 failure_return = true;
242 if (!done && q->q_owner == NULL &&
243 !emptyaddr(&e->e_from))
245 (void) sendtolist(e->e_from.q_paddr, NULLADDR,
246 &e->e_errorqueue, 0, e);
250 else if ((bitset(QPINGONSUCCESS, q->q_flags) &&
251 ((QS_IS_SENT(q->q_state) &&
252 bitnset(M_LOCALMAILER, q->q_mailer->m_flags)) ||
253 bitset(QRELAYED|QEXPANDED|QDELIVERED, q->q_flags))) ||
254 bitset(QBYTRACE, q->q_flags) ||
255 bitset(QBYNRELAY, q->q_flags))
257 success_return = true;
262 e->e_flags |= EF_NO_BODY_RETN;
265 ** See if the message timed out.
270 /* nothing to do */ ;
271 else if (IS_MSG_ERR(msg_timeout))
275 if (msg_timeout == MSG_NOT_BY)
277 (void) sm_snprintf(buf, sizeof buf,
278 "delivery time expired %lds",
283 (void) sm_snprintf(buf, sizeof buf,
284 "Cannot send message for %s",
285 pintvl(TimeOuts.to_q_return[e->e_timeoutclass],
289 /* don't free, allocated from e_rpool */
290 e->e_message = sm_rpool_strdup_x(e->e_rpool, buf);
292 e->e_flags |= EF_CLRQUEUE;
294 if (msg_timeout == MSG_NOT_BY)
296 (void) sm_io_fprintf(e->e_xfp, SM_TIME_DEFAULT,
297 "Delivery time (%lds) expired\n",
301 (void) sm_io_fprintf(e->e_xfp, SM_TIME_DEFAULT,
302 "Message could not be delivered for %s\n",
303 pintvl(TimeOuts.to_q_return[e->e_timeoutclass],
305 (void) sm_io_fprintf(e->e_xfp, SM_TIME_DEFAULT,
306 "Message will be deleted from queue\n");
307 for (q = e->e_sendqueue; q != NULL; q = q->q_next)
309 if (QS_IS_UNDELIVERED(q->q_state))
311 q->q_state = QS_BADADDR;
312 if (msg_timeout == MSG_NOT_BY)
313 q->q_status = "5.4.7";
315 q->q_status = "4.4.7";
321 if (TimeOuts.to_q_warning[e->e_timeoutclass] > 0 &&
323 TimeOuts.to_q_warning[e->e_timeoutclass])
324 msg_timeout = MSG_WARN;
325 else if (IS_DLVR_NOTIFY(e) &&
326 e->e_deliver_by > 0 &&
327 now >= e->e_ctime + e->e_deliver_by)
328 msg_timeout = MSG_WARN_BY;
330 if (IS_MSG_WARN(msg_timeout))
332 if (!bitset(EF_WARNING|EF_RESPONSE, e->e_flags) &&
334 e->e_from.q_paddr != NULL &&
335 strcmp(e->e_from.q_paddr, "<>") != 0 &&
336 sm_strncasecmp(e->e_from.q_paddr, "owner-", 6) != 0 &&
337 (strlen(e->e_from.q_paddr) <= 8 ||
338 sm_strcasecmp(&e->e_from.q_paddr[strlen(e->e_from.q_paddr) - 8],
341 for (q = e->e_sendqueue; q != NULL;
344 if (QS_IS_UNDELIVERED(q->q_state)
345 #if _FFR_NODELAYDSN_ON_HOLD
347 q->q_mailer->m_flags)
348 #endif /* _FFR_NODELAYDSN_ON_HOLD */
353 (bitset(QPINGONDELAY,
359 q->q_flags |= QBYNDELAY;
362 if (bitset(QPINGONDELAY,
365 q->q_flags |= QDELAYED;
373 if (msg_timeout == MSG_WARN_BY)
375 (void) sm_snprintf(buf, sizeof buf,
376 "Warning: Delivery time (%lds) exceeded",
380 (void) sm_snprintf(buf, sizeof buf,
381 "Warning: could not send message for past %s",
382 pintvl(TimeOuts.to_q_warning[e->e_timeoutclass],
385 /* don't free, allocated from e_rpool */
386 e->e_message = sm_rpool_strdup_x(e->e_rpool,
389 e->e_flags |= EF_WARNING;
391 if (msg_timeout == MSG_WARN_BY)
393 (void) sm_io_fprintf(e->e_xfp, SM_TIME_DEFAULT,
394 "Warning: Delivery time (%lds) exceeded\n",
398 (void) sm_io_fprintf(e->e_xfp, SM_TIME_DEFAULT,
399 "Warning: message still undelivered after %s\n",
400 pintvl(TimeOuts.to_q_warning[e->e_timeoutclass],
402 (void) sm_io_fprintf(e->e_xfp, SM_TIME_DEFAULT,
403 "Will keep trying until message is %s old\n",
404 pintvl(TimeOuts.to_q_return[e->e_timeoutclass],
410 sm_dprintf("failure_return=%d delay_return=%d success_return=%d queueit=%d\n",
411 failure_return, delay_return, success_return, queueit);
414 ** If we had some fatal error, but no addresses are marked as
415 ** bad, mark them _all_ as bad.
418 if (bitset(EF_FATALERRS, e->e_flags) && !failure_return)
420 for (q = e->e_sendqueue; q != NULL; q = q->q_next)
422 if ((QS_IS_OK(q->q_state) ||
423 QS_IS_VERIFIED(q->q_state)) &&
424 bitset(QPINGONFAILURE, q->q_flags))
426 failure_return = true;
427 q->q_state = QS_BADADDR;
433 ** Send back return receipts as requested.
436 if (success_return && !failure_return && !delay_return && fulldrop &&
437 !bitset(PRIV_NORECEIPTS, PrivacyFlags) &&
438 strcmp(e->e_from.q_paddr, "<>") != 0)
440 auto ADDRESS *rlist = NULL;
443 sm_dprintf("dropenvelope(%s): sending return receipt\n",
445 e->e_flags |= EF_SENDRECEIPT;
446 (void) sendtolist(e->e_from.q_paddr, NULLADDR, &rlist, 0, e);
447 (void) returntosender("Return receipt", rlist, RTSF_NO_BODY, e);
449 e->e_flags &= ~EF_SENDRECEIPT;
452 ** Arrange to send error messages if there are fatal errors.
455 if ((failure_return || delay_return) && e->e_errormode != EM_QUIET)
458 sm_dprintf("dropenvelope(%s): saving mail\n", id);
459 panic = savemail(e, !bitset(EF_NO_BODY_RETN, e->e_flags));
463 ** Arrange to send warning messages to postmaster as requested.
466 if ((failure_return || pmnotify) &&
467 PostMasterCopy != NULL &&
468 !bitset(EF_RESPONSE, e->e_flags) &&
471 auto ADDRESS *rlist = NULL;
476 expand(PostMasterCopy, pcopy, sizeof pcopy, e);
479 sm_dprintf("dropenvelope(%s): sending postmaster copy to %s\n",
481 (void) sendtolist(pcopy, NULLADDR, &rlist, 0, e);
484 (void) sendtolist("postmaster", NULLADDR,
486 (void) returntosender(e->e_message, rlist,
487 RTSF_PM_BOUNCE|RTSF_NO_BODY, e);
491 ** Instantiate or deinstantiate the queue.
496 sm_dprintf("dropenvelope(%s): at simpledrop, queueit=%d\n",
498 if (!queueit || bitset(EF_CLRQUEUE, e->e_flags))
502 sm_dprintf("\n===== Dropping queue files for %s... queueit=%d, e_flags=",
507 (void) xunlink(queuename(e, DATAFL_LETTER));
508 if (panic && QueueMode == QM_LOST)
511 ** leave the Qf file behind as
512 ** the delivery attempt failed.
518 if (xunlink(queuename(e, ANYQFL_LETTER)) == 0)
520 /* add to available space in filesystem */
521 updfs(e, -1, panic ? 0 : -1, "dropenvelope");
524 if (e->e_ntries > 0 && LogLevel > 9)
525 sm_syslog(LOG_INFO, id, "done; delay=%s, ntries=%d",
526 pintvl(curtime() - e->e_ctime, true),
529 else if (queueit || !bitset(EF_INQUEUE, e->e_flags))
532 queueup(e, false, true);
539 ** Save old sibling and set it to NULL to avoid
540 ** queueing up the same envelopes again.
541 ** This requires that envelopes in that list have
542 ** been take care of before (or at some other place).
545 oldsib = e->e_sibling;
547 if (!split_by_recipient(e) &&
548 bitset(EF_FATALERRS, e->e_flags))
550 syserr("!dropenvelope(%s): cannot commit data file %s, uid=%d",
551 e->e_id, queuename(e, DATAFL_LETTER),
554 for (ee = e->e_sibling; ee != NULL; ee = ee->e_sibling)
555 queueup(ee, false, true);
556 queueup(e, false, true);
559 for (ee = e->e_sibling; ee != NULL; ee = ee->e_sibling)
561 /* now unlock the job */
563 sm_dprintf("dropenvelope(%s): unlocking job\n",
568 /* this envelope is marked unused */
569 if (ee->e_dfp != NULL)
571 (void) sm_io_close(ee->e_dfp,
576 ee->e_flags &= ~EF_HAS_DF;
578 e->e_sibling = oldsib;
582 /* now unlock the job */
584 sm_dprintf("dropenvelope(%s): unlocking job\n", id);
588 /* make sure that this envelope is marked unused */
589 if (e->e_dfp != NULL)
591 (void) sm_io_close(e->e_dfp, SM_TIME_DEFAULT);
595 e->e_flags &= ~EF_HAS_DF;
598 ** CLEARENVELOPE -- clear an envelope without unlocking
600 ** This is normally used by a child process to get a clean
601 ** envelope without disturbing the parent.
604 ** e -- the envelope to clear.
605 ** fullclear - if set, the current envelope is total
606 ** garbage and should be ignored; otherwise,
607 ** release any resources it may indicate.
608 ** rpool -- either NULL, or a pointer to a resource pool
609 ** from which envelope memory is allocated, and
610 ** to which envelope resources are attached.
616 ** Closes files associated with the envelope.
617 ** Marks the envelope as unallocated.
621 clearenvelope(e, fullclear, rpool)
622 register ENVELOPE *e;
628 extern ENVELOPE BlankEnvelope;
633 /* clear out any file information */
634 if (e->e_xfp != NULL)
635 (void) sm_io_close(e->e_xfp, SM_TIME_DEFAULT);
636 if (e->e_dfp != NULL)
637 (void) sm_io_close(e->e_dfp, SM_TIME_DEFAULT);
638 e->e_xfp = e->e_dfp = NULL;
642 ** Copy BlankEnvelope into *e.
643 ** It is not safe to simply copy pointers to strings;
644 ** the strings themselves must be copied (or set to NULL).
645 ** The problem is that when we assign a new string value to
646 ** a member of BlankEnvelope, we free the old string.
647 ** We did not need to do this copying in sendmail 8.11 :-(
648 ** and it is a potential performance hit. Reference counted
649 ** strings are one way out.
654 e->e_qfletter = '\0';
656 macdefine(&e->e_macro, A_PERM, macid("{quarantine}"), "");
659 ** Copy the macro table.
660 ** We might be able to avoid this by zeroing the macro table
661 ** and always searching BlankEnvelope.e_macro after e->e_macro
665 for (p = &e->e_macro.mac_table[0];
666 p <= &e->e_macro.mac_table[MAXMACROID];
670 *p = sm_rpool_strdup_x(rpool, *p);
674 ** XXX There are many strings in the envelope structure
675 ** XXX that we are not attempting to copy here.
676 ** XXX Investigate this further.
680 e->e_macro.mac_rpool = rpool;
682 set_delivery_mode(SM_DELIVER, e);
683 bh = BlankEnvelope.e_header;
687 *nhp = (HDR *) sm_rpool_malloc_x(rpool, sizeof *bh);
688 memmove((char *) *nhp, (char *) bh, sizeof *bh);
690 nhp = &(*nhp)->h_link;
694 ** INITSYS -- initialize instantiation of system
696 ** In Daemon mode, this is done in the child.
699 ** e -- the envelope to use.
705 ** Initializes the system macros, some global variables,
706 ** etc. In particular, the current time in various
712 register ENVELOPE *e;
716 static char ybuf[60]; /* holds tty id */
718 extern char *ttyname();
722 ** Give this envelope a reality.
723 ** I.e., an id, a transcript, and a creation time.
724 ** We don't select the queue until all of the recipients are known.
728 e->e_ctime = curtime();
729 e->e_qfletter = '\0';
732 ** Set OutChannel to something useful if stdout isn't it.
733 ** This arranges that any extra stuff the mailer produces
734 ** gets sent back to the user on error (because it is
735 ** tucked away in the transcript).
738 if (OpMode == MD_DAEMON && bitset(EF_QUEUERUN, e->e_flags) &&
740 OutChannel = e->e_xfp;
743 ** Set up some basic system macros.
747 (void) sm_snprintf(buf, sizeof buf, "%d", (int) CurrentPid);
748 macdefine(&e->e_macro, A_TEMP, 'p', buf);
751 (void) sm_snprintf(buf, sizeof buf, "%d", e->e_hopcount);
752 macdefine(&e->e_macro, A_TEMP, 'c', buf);
754 /* time as integer, unix time, arpa time */
762 if (macvalue('y', e) == NULL)
767 if (strrchr(p, '/') != NULL)
768 p = strrchr(p, '/') + 1;
769 (void) sm_strlcpy(ybuf, sizeof ybuf, p);
770 macdefine(&e->e_macro, A_PERM, 'y', ybuf);
776 ** SETTIME -- set the current time.
779 ** e -- the envelope in which the macros should be set.
785 ** Sets the various time macros -- $a, $b, $d, $t.
790 register ENVELOPE *e;
795 register struct tm *tm;
798 (void) sm_snprintf(buf, sizeof buf, "%ld", (long) now);
799 macdefine(&e->e_macro, A_TEMP, macid("{time}"), buf);
801 (void) sm_snprintf(buf, sizeof buf, "%04d%02d%02d%02d%02d",
802 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
803 tm->tm_hour, tm->tm_min);
804 macdefine(&e->e_macro, A_TEMP, 't', buf);
805 (void) sm_strlcpy(buf, ctime(&now), sizeof buf);
806 p = strchr(buf, '\n');
809 macdefine(&e->e_macro, A_TEMP, 'd', buf);
810 macdefine(&e->e_macro, A_TEMP, 'b', arpadate(buf));
811 if (macvalue('a', e) == NULL)
812 macdefine(&e->e_macro, A_PERM, 'a', macvalue('b', e));
815 ** OPENXSCRIPT -- Open transcript file
817 ** Creates a transcript file for possible eventual mailing or
821 ** e -- the envelope to create the transcript in/for.
827 ** Creates the transcript file.
832 #endif /* ! O_APPEND */
836 register ENVELOPE *e;
840 if (e->e_xfp != NULL)
844 if (e->e_lockfp == NULL && bitset(EF_INQUEUE, e->e_flags))
845 syserr("openxscript: job not locked");
848 p = queuename(e, XSCRPT_LETTER);
849 e->e_xfp = bfopen(p, FileMode, XscriptFileBufferSize,
850 SFF_NOTEXCL|SFF_OPENASROOT);
852 if (e->e_xfp == NULL)
854 syserr("Can't create transcript file %s", p);
855 e->e_xfp = sm_io_open(SmFtStdio, SM_TIME_DEFAULT,
856 SM_PATH_DEVNULL, SM_IO_RDWR, NULL);
857 if (e->e_xfp == NULL)
858 syserr("!Can't open %s", SM_PATH_DEVNULL);
860 (void) sm_io_setvbuf(e->e_xfp, SM_TIME_DEFAULT, NULL, SM_IO_LBF, 0);
863 sm_dprintf("openxscript(%s):\n ", p);
864 dumpfd(sm_io_getinfo(e->e_xfp, SM_IO_WHAT_FD, NULL), true,
869 ** CLOSEXSCRIPT -- close the transcript file.
872 ** e -- the envelope containing the transcript to close.
883 register ENVELOPE *e;
885 if (e->e_xfp == NULL)
888 if (e->e_lockfp == NULL)
889 syserr("closexscript: job not locked");
891 (void) sm_io_close(e->e_xfp, SM_TIME_DEFAULT);
895 ** SETSENDER -- set the person who this message is from
897 ** Under certain circumstances allow the user to say who
898 ** s/he is (using -f or -r). These are:
899 ** 1. The user's uid is zero (root).
900 ** 2. The user's login name is in an approved list (typically
901 ** from a network server).
902 ** 3. The address the user is trying to claim has a
903 ** "!" character in it (since #2 doesn't do it for
904 ** us if we are dialing out for UUCP).
905 ** A better check to replace #3 would be if the
906 ** effective uid is "UUCP" -- this would require me
907 ** to rewrite getpwent to "grab" uucp as it went by,
908 ** make getname more nasty, do another passwd file
909 ** scan, or compile the UID of "UUCP" into the code,
910 ** all of which are reprehensible.
912 ** Assuming all of these fail, we figure out something
916 ** from -- the person we would like to believe this message
917 ** is from, as specified on the command line.
918 ** e -- the envelope in which we would like the sender set.
919 ** delimptr -- if non-NULL, set to the location of the
920 ** trailing delimiter.
921 ** delimchar -- the character that will delimit the sender
923 ** internal -- set if this address is coming from an internal
924 ** source such as an owner alias.
930 ** sets sendmail's notion of who the from person is.
934 setsender(from, e, delimptr, delimchar, internal)
936 register ENVELOPE *e;
942 char *realname = NULL;
944 char buf[MAXNAME + 2];
945 char pvpbuf[PSBUFSIZE];
946 extern char *FullName;
949 sm_dprintf("setsender(%s)\n", from == NULL ? "" : from);
951 /* may be set from earlier calls */
952 macdefine(&e->e_macro, A_PERM, 'x', "");
955 ** Figure out the real user executing us.
956 ** Username can return errno != 0 on non-errors.
959 if (bitset(EF_QUEUERUN, e->e_flags) || OpMode == MD_SMTP ||
960 OpMode == MD_ARPAFTP || OpMode == MD_DAEMON)
962 if (realname == NULL || realname[0] == '\0')
963 realname = username();
968 macdefine(&e->e_macro, A_PERM, macid("{addr_type}"), "e s");
970 /* preset state for then clause in case from == NULL */
971 e->e_from.q_state = QS_BADADDR;
972 e->e_from.q_flags = 0;
974 parseaddr(from, &e->e_from, RF_COPYALL|RF_SENDERADDR,
975 delimchar, delimptr, e, false) == NULL ||
976 QS_IS_BADADDR(e->e_from.q_state) ||
977 e->e_from.q_mailer == ProgMailer ||
978 e->e_from.q_mailer == FileMailer ||
979 e->e_from.q_mailer == InclMailer)
981 /* log garbage addresses for traceback */
982 if (from != NULL && LogLevel > 2)
985 char ebuf[MAXNAME * 2 + 2];
987 p = macvalue('_', e);
990 char *host = RealHostName;
994 (void) sm_snprintf(ebuf, sizeof ebuf,
995 "%.*s@%.*s", MAXNAME,
996 realname, MAXNAME, host);
999 sm_syslog(LOG_NOTICE, e->e_id,
1000 "setsender: %s: invalid or unparsable, received from %s",
1001 shortenstring(from, 83), p);
1005 if (!QS_IS_BADADDR(e->e_from.q_state))
1007 /* it was a bogus mailer in the from addr */
1008 e->e_status = "5.1.7";
1009 usrerrenh(e->e_status,
1010 "553 Invalid sender address");
1014 if (from == realname ||
1015 parseaddr(from = realname,
1016 &e->e_from, RF_COPYALL|RF_SENDERADDR, ' ',
1017 NULL, e, false) == NULL)
1022 expand("\201n", nbuf, sizeof nbuf, e);
1023 from = sm_rpool_strdup_x(e->e_rpool, nbuf);
1024 if (parseaddr(from, &e->e_from, RF_COPYALL, ' ',
1025 NULL, e, false) == NULL &&
1026 parseaddr(from = "postmaster", &e->e_from,
1027 RF_COPYALL, ' ', NULL, e, false) == NULL)
1028 syserr("553 5.3.0 setsender: can't even parse postmaster!");
1033 e->e_from.q_state = QS_SENDER;
1036 sm_dprintf("setsender: QS_SENDER ");
1037 printaddr(sm_debug_file(), &e->e_from, false);
1042 if (bitnset(M_CHECKUDB, e->e_from.q_mailer->m_flags))
1046 p = udbsender(e->e_from.q_user, e->e_rpool);
1052 if (bitnset(M_HASPWENT, e->e_from.q_mailer->m_flags))
1058 /* if the user already given fullname don't redefine */
1059 if (FullName == NULL)
1060 FullName = macvalue('x', e);
1061 if (FullName != NULL)
1063 if (FullName[0] == '\0')
1066 FullName = newstr(FullName);
1070 if (e->e_from.q_user[0] != '\0' &&
1071 sm_mbdb_lookup(e->e_from.q_user, &user) == EX_OK)
1074 ** Process passwd file entry.
1077 /* extract home directory */
1078 if (*user.mbdb_homedir == '\0')
1079 e->e_from.q_home = NULL;
1080 else if (strcmp(user.mbdb_homedir, "/") == 0)
1081 e->e_from.q_home = "";
1083 e->e_from.q_home = sm_rpool_strdup_x(e->e_rpool,
1085 macdefine(&e->e_macro, A_PERM, 'z', e->e_from.q_home);
1087 /* extract user and group id */
1088 if (user.mbdb_uid != SM_NO_UID)
1090 e->e_from.q_uid = user.mbdb_uid;
1091 e->e_from.q_gid = user.mbdb_gid;
1092 e->e_from.q_flags |= QGOODUID;
1095 /* extract full name from passwd file */
1096 if (FullName == NULL && !internal &&
1097 user.mbdb_fullname[0] != '\0' &&
1098 strcmp(user.mbdb_name, e->e_from.q_user) == 0)
1100 FullName = newstr(user.mbdb_fullname);
1105 e->e_from.q_home = NULL;
1107 if (FullName != NULL && !internal)
1108 macdefine(&e->e_macro, A_TEMP, 'x', FullName);
1110 else if (!internal && OpMode != MD_DAEMON && OpMode != MD_SMTP)
1112 if (e->e_from.q_home == NULL)
1114 e->e_from.q_home = getenv("HOME");
1115 if (e->e_from.q_home != NULL)
1117 if (*e->e_from.q_home == '\0')
1118 e->e_from.q_home = NULL;
1119 else if (strcmp(e->e_from.q_home, "/") == 0)
1123 e->e_from.q_uid = RealUid;
1124 e->e_from.q_gid = RealGid;
1125 e->e_from.q_flags |= QGOODUID;
1129 ** Rewrite the from person to dispose of possible implicit
1130 ** links in the net.
1133 pvp = prescan(from, delimchar, pvpbuf, sizeof pvpbuf, NULL, NULL, false);
1136 /* don't need to give error -- prescan did that already */
1138 sm_syslog(LOG_NOTICE, e->e_id,
1139 "cannot prescan from (%s)",
1140 shortenstring(from, MAXSHORTSTR));
1141 finis(true, true, ExitStat);
1143 (void) REWRITE(pvp, 3, e);
1144 (void) REWRITE(pvp, 1, e);
1145 (void) REWRITE(pvp, 4, e);
1146 macdefine(&e->e_macro, A_PERM, macid("{addr_type}"), NULL);
1148 cataddr(pvp, NULL, bp, sizeof buf - 2, '\0');
1149 if (*bp == '@' && !bitnset(M_NOBRACKET, e->e_from.q_mailer->m_flags))
1151 /* heuristic: route-addr: add angle brackets */
1152 (void) sm_strlcat(bp, ">", sizeof buf - 1);
1155 e->e_sender = sm_rpool_strdup_x(e->e_rpool, bp);
1156 macdefine(&e->e_macro, A_PERM, 'f', e->e_sender);
1158 /* save the domain spec if this mailer wants it */
1159 if (e->e_from.q_mailer != NULL &&
1160 bitnset(M_CANONICAL, e->e_from.q_mailer->m_flags))
1164 /* get rid of any pesky angle brackets */
1165 macdefine(&e->e_macro, A_PERM, macid("{addr_type}"), "e s");
1166 (void) REWRITE(pvp, 3, e);
1167 (void) REWRITE(pvp, 1, e);
1168 (void) REWRITE(pvp, 4, e);
1169 macdefine(&e->e_macro, A_PERM, macid("{addr_type}"), NULL);
1171 /* strip off to the last "@" sign */
1172 for (lastat = NULL; *pvp != NULL; pvp++)
1174 if (strcmp(*pvp, "@") == 0)
1179 e->e_fromdomain = copyplist(lastat, true, e->e_rpool);
1182 sm_dprintf("Saving from domain: ");
1183 printav(sm_debug_file(), e->e_fromdomain);
1189 ** PRINTENVFLAGS -- print envelope flags for debugging
1192 ** e -- the envelope with the flags to be printed.
1201 unsigned long ef_bit;
1204 static struct eflags EnvelopeFlags[] =
1206 { "OLDSTYLE", EF_OLDSTYLE },
1207 { "INQUEUE", EF_INQUEUE },
1208 { "NO_BODY_RETN", EF_NO_BODY_RETN },
1209 { "CLRQUEUE", EF_CLRQUEUE },
1210 { "SENDRECEIPT", EF_SENDRECEIPT },
1211 { "FATALERRS", EF_FATALERRS },
1212 { "DELETE_BCC", EF_DELETE_BCC },
1213 { "RESPONSE", EF_RESPONSE },
1214 { "RESENT", EF_RESENT },
1215 { "VRFYONLY", EF_VRFYONLY },
1216 { "WARNING", EF_WARNING },
1217 { "QUEUERUN", EF_QUEUERUN },
1218 { "GLOBALERRS", EF_GLOBALERRS },
1219 { "PM_NOTIFY", EF_PM_NOTIFY },
1220 { "METOO", EF_METOO },
1221 { "LOGSENDER", EF_LOGSENDER },
1222 { "NORECEIPT", EF_NORECEIPT },
1223 { "HAS8BIT", EF_HAS8BIT },
1224 { "NL_NOT_EOL", EF_NL_NOT_EOL },
1225 { "CRLF_NOT_EOL", EF_CRLF_NOT_EOL },
1226 { "RET_PARAM", EF_RET_PARAM },
1227 { "HAS_DF", EF_HAS_DF },
1228 { "IS_MIME", EF_IS_MIME },
1229 { "DONT_MIME", EF_DONT_MIME },
1230 { "DISCARD", EF_DISCARD },
1231 { "TOOBIG", EF_TOOBIG },
1232 { "SPLIT", EF_SPLIT },
1233 { "UNSAFE", EF_UNSAFE },
1239 register ENVELOPE *e;
1241 register struct eflags *ef;
1244 sm_dprintf("%lx", e->e_flags);
1245 for (ef = EnvelopeFlags; ef->ef_name != NULL; ef++)
1247 if (!bitset(ef->ef_bit, e->e_flags))
1250 sm_dprintf("<%s", ef->ef_name);
1252 sm_dprintf(",%s", ef->ef_name);