1 /*
2  * Copyright (c) 1983 Eric P. Allman
3  * Copyright (c) 1988 Regents of the University of California.
4  * All rights reserved.
5  *
6  * %sccs.include.redist.c%
7  */
8 
9 # include "sendmail.h"
10 
11 #ifndef lint
12 #ifdef SMTP
13 static char sccsid[] = "@(#)srvrsmtp.c	6.28 (Berkeley) 03/19/93 (with SMTP)";
14 #else
15 static char sccsid[] = "@(#)srvrsmtp.c	6.28 (Berkeley) 03/19/93 (without SMTP)";
16 #endif
17 #endif /* not lint */
18 
19 # include <errno.h>
20 # include <signal.h>
21 
22 # ifdef SMTP
23 
24 /*
25 **  SMTP -- run the SMTP protocol.
26 **
27 **	Parameters:
28 **		none.
29 **
30 **	Returns:
31 **		never.
32 **
33 **	Side Effects:
34 **		Reads commands from the input channel and processes
35 **			them.
36 */
37 
38 struct cmd
39 {
40 	char	*cmdname;	/* command name */
41 	int	cmdcode;	/* internal code, see below */
42 };
43 
44 /* values for cmdcode */
45 # define CMDERROR	0	/* bad command */
46 # define CMDMAIL	1	/* mail -- designate sender */
47 # define CMDRCPT	2	/* rcpt -- designate recipient */
48 # define CMDDATA	3	/* data -- send message text */
49 # define CMDRSET	4	/* rset -- reset state */
50 # define CMDVRFY	5	/* vrfy -- verify address */
51 # define CMDEXPN	6	/* expn -- expand address */
52 # define CMDNOOP	7	/* noop -- do nothing */
53 # define CMDQUIT	8	/* quit -- close connection and die */
54 # define CMDHELO	9	/* helo -- be polite */
55 # define CMDHELP	10	/* help -- give usage info */
56 # define CMDEHLO	11	/* ehlo -- extended helo (RFC 1425) */
57 /* non-standard commands */
58 # define CMDONEX	16	/* onex -- sending one transaction only */
59 # define CMDVERB	17	/* verb -- go into verbose mode */
60 /* debugging-only commands, only enabled if SMTPDEBUG is defined */
61 # define CMDDBGQSHOW	24	/* showq -- show send queue */
62 # define CMDDBGDEBUG	25	/* debug -- set debug mode */
63 
64 static struct cmd	CmdTab[] =
65 {
66 	"mail",		CMDMAIL,
67 	"rcpt",		CMDRCPT,
68 	"data",		CMDDATA,
69 	"rset",		CMDRSET,
70 	"vrfy",		CMDVRFY,
71 	"expn",		CMDEXPN,
72 	"help",		CMDHELP,
73 	"noop",		CMDNOOP,
74 	"quit",		CMDQUIT,
75 	"helo",		CMDHELO,
76 	"ehlo",		CMDEHLO,
77 	"verb",		CMDVERB,
78 	"onex",		CMDONEX,
79 	/*
80 	 * remaining commands are here only
81 	 * to trap and log attempts to use them
82 	 */
83 	"showq",	CMDDBGQSHOW,
84 	"debug",	CMDDBGDEBUG,
85 	NULL,		CMDERROR,
86 };
87 
88 bool	InChild = FALSE;		/* true if running in a subprocess */
89 bool	OneXact = FALSE;		/* one xaction only this run */
90 
91 #define EX_QUIT		22		/* special code for QUIT command */
92 
93 smtp(e)
94 	register ENVELOPE *e;
95 {
96 	register char *p;
97 	register struct cmd *c;
98 	char *cmd;
99 	static char *skipword();
100 	auto ADDRESS *vrfyqueue;
101 	ADDRESS *a;
102 	char *sendinghost;
103 	bool gotmail;			/* mail command received */
104 	bool gothello;			/* helo command received */
105 	bool vrfy;			/* set if this is a vrfy command */
106 	char *protocol;			/* sending protocol */
107 	long msize;			/* approximate maximum message size */
108 	auto char *delimptr;
109 	char *id;
110 	char inp[MAXLINE];
111 	char cmdbuf[MAXLINE];
112 	char hostbuf[MAXNAME];
113 	extern char Version[];
114 	extern char *macvalue();
115 	extern ADDRESS *recipient();
116 	extern ENVELOPE BlankEnvelope;
117 	extern ENVELOPE *newenvelope();
118 	extern char *anynet_ntoa();
119 
120 	if (OutChannel != stdout)
121 	{
122 		/* arrange for debugging output to go to remote host */
123 		(void) close(1);
124 		(void) dup(fileno(OutChannel));
125 	}
126 	settime(e);
127 	CurHostName = RealHostName;
128 	setproctitle("srvrsmtp %s", CurHostName);
129 	expand("\201e", inp, &inp[sizeof inp], e);
130 	message("220 %s", inp);
131 	SmtpPhase = "startup";
132 	sendinghost = NULL;
133 	protocol = NULL;
134 	gothello = FALSE;
135 	gotmail = FALSE;
136 	for (;;)
137 	{
138 		/* arrange for backout */
139 		if (setjmp(TopFrame) > 0 && InChild)
140 			finis();
141 		QuickAbort = FALSE;
142 		HoldErrs = FALSE;
143 		LogUsrErrs = FALSE;
144 		e->e_flags &= ~EF_VRFYONLY;
145 
146 		/* setup for the read */
147 		e->e_to = NULL;
148 		Errors = 0;
149 		(void) fflush(stdout);
150 
151 		/* read the input line */
152 		p = sfgets(inp, sizeof inp, InChannel, TimeOuts.to_nextcommand);
153 
154 		/* handle errors */
155 		if (p == NULL)
156 		{
157 			/* end of file, just die */
158 			message("421 %s Lost input channel from %s",
159 				MyHostName, CurHostName);
160 #ifdef LOG
161 			if (LogLevel > 1)
162 				syslog(LOG_NOTICE, "lost input channel from %s",
163 					CurHostName);
164 #endif
165 			if (InChild)
166 				ExitStat = EX_QUIT;
167 			finis();
168 		}
169 
170 		/* clean up end of line */
171 		fixcrlf(inp, TRUE);
172 
173 		/* echo command to transcript */
174 		if (e->e_xfp != NULL)
175 			fprintf(e->e_xfp, "<<< %s\n", inp);
176 
177 		/* break off command */
178 		for (p = inp; isascii(*p) && isspace(*p); p++)
179 			continue;
180 		cmd = cmdbuf;
181 		while (*p != '\0' &&
182 		       !(isascii(*p) && isspace(*p)) &&
183 		       cmd < &cmdbuf[sizeof cmdbuf - 2])
184 			*cmd++ = *p++;
185 		*cmd = '\0';
186 
187 		/* throw away leading whitespace */
188 		while (isascii(*p) && isspace(*p))
189 			p++;
190 
191 		/* decode command */
192 		for (c = CmdTab; c->cmdname != NULL; c++)
193 		{
194 			if (!strcasecmp(c->cmdname, cmdbuf))
195 				break;
196 		}
197 
198 		/* reset errors */
199 		errno = 0;
200 
201 		/* process command */
202 		switch (c->cmdcode)
203 		{
204 		  case CMDHELO:		/* hello -- introduce yourself */
205 		  case CMDEHLO:		/* extended hello */
206 			if (c->cmdcode == CMDEHLO)
207 			{
208 				protocol = "ESMTP";
209 				SmtpPhase = "EHLO";
210 			}
211 			else
212 			{
213 				protocol = "SMTP";
214 				SmtpPhase = "HELO";
215 			}
216 			setproctitle("%s: %s", CurHostName, inp);
217 			if (strcasecmp(p, MyHostName) == 0)
218 			{
219 				/*
220 				**  Didn't know about alias or MX,
221 				**  or connected to an echo server
222 				*/
223 
224 				message("553 %s config error: mail loops back to myself",
225 					MyHostName);
226 				break;
227 			}
228 			(void) strcpy(hostbuf, p);
229 			(void) strcat(hostbuf, " (");
230 			(void) strcat(hostbuf, anynet_ntoa(&RealHostAddr));
231 			if (strcasecmp(p, RealHostName) != 0)
232 			{
233 				(void) strcat(hostbuf, "; ");
234 				(void) strcat(hostbuf, RealHostName);
235 			}
236 			(void) strcat(hostbuf, ")");
237 			sendinghost = newstr(hostbuf);
238 
239 			/* send ext. message -- old systems must ignore */
240 			message("250-%s Hello %s, pleased to meet you",
241 				MyHostName, sendinghost);
242 			if (!bitset(PRIV_NOEXPN, PrivacyFlags))
243 				message("250-EXPN");
244 			message("250-SIZE");
245 			message("250 HELP");
246 			gothello = TRUE;
247 			break;
248 
249 		  case CMDMAIL:		/* mail -- designate sender */
250 			SmtpPhase = "MAIL";
251 
252 			/* force a sending host even if no HELO given */
253 			if (sendinghost == NULL && macvalue('s', e) == NULL)
254 				sendinghost = RealHostName;
255 
256 			/* check for validity of this command */
257 			if (!gothello && bitset(PRIV_NEEDMAILHELO, PrivacyFlags))
258 			{
259 				message("503 Polite people say HELO first");
260 				break;
261 			}
262 			if (gotmail)
263 			{
264 				message("503 Sender already specified");
265 				break;
266 			}
267 			if (InChild)
268 			{
269 				errno = 0;
270 				syserr("503 Nested MAIL command: MAIL %s", p);
271 				finis();
272 			}
273 
274 			/* fork a subprocess to process this command */
275 			if (runinchild("SMTP-MAIL", e) > 0)
276 				break;
277 			if (sendinghost != NULL)
278 				define('s', sendinghost, e);
279 			if (protocol == NULL)
280 				protocol = "SMTP";
281 			define('r', protocol, e);
282 			initsys(e);
283 			setproctitle("%s %s: %s", e->e_id, CurHostName, inp);
284 
285 			/* child -- go do the processing */
286 			p = skipword(p, "from");
287 			if (p == NULL)
288 				break;
289 			if (setjmp(TopFrame) > 0)
290 			{
291 				/* this failed -- undo work */
292 				if (InChild)
293 					finis();
294 				break;
295 			}
296 			QuickAbort = TRUE;
297 
298 			/* must parse sender first */
299 			delimptr = NULL;
300 			setsender(p, e, &delimptr, FALSE);
301 			p = delimptr;
302 			if (p != NULL && *p != '\0')
303 				*p++ = '\0';
304 
305 			/* now parse ESMTP arguments */
306 			msize = 0;
307 			for (; p != NULL && *p != '\0'; p++)
308 			{
309 				char *kp;
310 				char *vp;
311 
312 				/* locate the beginning of the keyword */
313 				while (isascii(*p) && isspace(*p))
314 					p++;
315 				if (*p == '\0')
316 					break;
317 				kp = p;
318 
319 				/* skip to the value portion */
320 				while (isascii(*p) && isalnum(*p) || *p == '-')
321 					p++;
322 				if (*p == '=')
323 				{
324 					*p++ = '\0';
325 					vp = p;
326 
327 					/* skip to the end of the value */
328 					while (*p != '\0' && *p != ' ' &&
329 					       !(isascii(*p) && iscntrl(*p)) &&
330 					       *p != '=')
331 						p++;
332 				}
333 
334 				if (*p != '\0')
335 					*p++ = '\0';
336 
337 				if (tTd(19, 1))
338 					printf("MAIL: got arg %s=%s\n", kp,
339 						vp == NULL ? "<null>" : vp);
340 
341 				if (strcasecmp(kp, "size") == 0)
342 				{
343 					if (kp == NULL)
344 					{
345 						usrerr("501 SIZE requires a value");
346 						/* NOTREACHED */
347 					}
348 					msize = atol(vp);
349 				}
350 				else
351 				{
352 					usrerr("501 %s parameter unrecognized", kp);
353 					/* NOTREACHED */
354 				}
355 			}
356 
357 			if (!enoughspace(msize))
358 			{
359 				message("452 Insufficient disk space; try again later");
360 				break;
361 			}
362 			message("250 Sender ok");
363 			gotmail = TRUE;
364 			break;
365 
366 		  case CMDRCPT:		/* rcpt -- designate recipient */
367 			SmtpPhase = "RCPT";
368 			setproctitle("%s %s: %s", e->e_id, CurHostName, inp);
369 			if (setjmp(TopFrame) > 0)
370 			{
371 				e->e_flags &= ~EF_FATALERRS;
372 				break;
373 			}
374 			QuickAbort = TRUE;
375 			LogUsrErrs = TRUE;
376 
377 			/* optimization -- if queueing, don't expand aliases */
378 			if (e->e_sendmode == SM_QUEUE)
379 				e->e_flags |= EF_VRFYONLY;
380 
381 			p = skipword(p, "to");
382 			if (p == NULL)
383 				break;
384 			a = parseaddr(p, (ADDRESS *) NULL, 1, ' ', NULL, e);
385 			if (a == NULL)
386 				break;
387 			a->q_flags |= QPRIMARY;
388 			a = recipient(a, &e->e_sendqueue, e);
389 			if (Errors != 0)
390 				break;
391 
392 			/* no errors during parsing, but might be a duplicate */
393 			e->e_to = p;
394 			if (!bitset(QBADADDR, a->q_flags))
395 				message("250 Recipient ok");
396 			else
397 			{
398 				/* punt -- should keep message in ADDRESS.... */
399 				message("550 Addressee unknown");
400 			}
401 			e->e_to = NULL;
402 			break;
403 
404 		  case CMDDATA:		/* data -- text of mail */
405 			SmtpPhase = "DATA";
406 			if (!gotmail)
407 			{
408 				message("503 Need MAIL command");
409 				break;
410 			}
411 			else if (e->e_nrcpts <= 0)
412 			{
413 				message("503 Need RCPT (recipient)");
414 				break;
415 			}
416 
417 			/* collect the text of the message */
418 			SmtpPhase = "collect";
419 			setproctitle("%s %s: %s", e->e_id, CurHostName, inp);
420 			collect(TRUE, e);
421 			if (Errors != 0)
422 				break;
423 
424 			/*
425 			**  Arrange to send to everyone.
426 			**	If sending to multiple people, mail back
427 			**		errors rather than reporting directly.
428 			**	In any case, don't mail back errors for
429 			**		anything that has happened up to
430 			**		now (the other end will do this).
431 			**	Truncate our transcript -- the mail has gotten
432 			**		to us successfully, and if we have
433 			**		to mail this back, it will be easier
434 			**		on the reader.
435 			**	Then send to everyone.
436 			**	Finally give a reply code.  If an error has
437 			**		already been given, don't mail a
438 			**		message back.
439 			**	We goose error returns by clearing error bit.
440 			*/
441 
442 			SmtpPhase = "delivery";
443 			if (e->e_nrcpts != 1)
444 			{
445 				HoldErrs = TRUE;
446 				e->e_errormode = EM_MAIL;
447 			}
448 			e->e_flags &= ~EF_FATALERRS;
449 			e->e_xfp = freopen(queuename(e, 'x'), "w", e->e_xfp);
450 			id = e->e_id;
451 
452 			/* send to all recipients */
453 			sendall(e, SM_DEFAULT);
454 			e->e_to = NULL;
455 
456 			/* save statistics */
457 			markstats(e, (ADDRESS *) NULL);
458 
459 			/* issue success if appropriate and reset */
460 			if (Errors == 0 || HoldErrs)
461 				message("250 %s OK", id);
462 			else
463 				e->e_flags &= ~EF_FATALERRS;
464 
465 			/* if in a child, pop back to our parent */
466 			if (InChild)
467 				finis();
468 
469 			/* clean up a bit */
470 			gotmail = FALSE;
471 			dropenvelope(e);
472 			CurEnv = e = newenvelope(e, CurEnv);
473 			e->e_flags = BlankEnvelope.e_flags;
474 			break;
475 
476 		  case CMDRSET:		/* rset -- reset state */
477 			message("250 Reset state");
478 			if (InChild)
479 				finis();
480 
481 			/* clean up a bit */
482 			gotmail = FALSE;
483 			dropenvelope(e);
484 			CurEnv = e = newenvelope(e, CurEnv);
485 			break;
486 
487 		  case CMDVRFY:		/* vrfy -- verify address */
488 		  case CMDEXPN:		/* expn -- expand address */
489 			vrfy = c->cmdcode == CMDVRFY;
490 			if (bitset(vrfy ? PRIV_NOVRFY : PRIV_NOEXPN,
491 						PrivacyFlags))
492 			{
493 				if (vrfy)
494 					message("252 Who's to say?");
495 				else
496 					message("502 That's none of your business");
497 				break;
498 			}
499 			else if (!gothello &&
500 				 bitset(vrfy ? PRIV_NEEDVRFYHELO : PRIV_NEEDEXPNHELO,
501 						PrivacyFlags))
502 			{
503 				message("503 I demand that you introduce yourself first");
504 				break;
505 			}
506 			if (runinchild(vrfy ? "SMTP-VRFY" : "SMTP-EXPN", e) > 0)
507 				break;
508 			setproctitle("%s: %s", CurHostName, inp);
509 #ifdef LOG
510 			if (LogLevel > 5)
511 				syslog(LOG_INFO, "%s: %s", CurHostName, inp);
512 #endif
513 			vrfyqueue = NULL;
514 			QuickAbort = TRUE;
515 			if (vrfy)
516 				e->e_flags |= EF_VRFYONLY;
517 			(void) sendtolist(p, (ADDRESS *) NULL, &vrfyqueue, e);
518 			if (Errors != 0)
519 			{
520 				if (InChild)
521 					finis();
522 				break;
523 			}
524 			while (vrfyqueue != NULL)
525 			{
526 				register ADDRESS *a = vrfyqueue->q_next;
527 				char *code;
528 
529 				while (a != NULL && bitset(QDONTSEND|QBADADDR, a->q_flags))
530 					a = a->q_next;
531 
532 				if (!bitset(QDONTSEND|QBADADDR, vrfyqueue->q_flags))
533 					printvrfyaddr(vrfyqueue, a == NULL);
534 				else if (a == NULL)
535 					message("554 Self destructive alias loop");
536 				vrfyqueue = a;
537 			}
538 			if (InChild)
539 				finis();
540 			break;
541 
542 		  case CMDHELP:		/* help -- give user info */
543 			help(p);
544 			break;
545 
546 		  case CMDNOOP:		/* noop -- do nothing */
547 			message("200 OK");
548 			break;
549 
550 		  case CMDQUIT:		/* quit -- leave mail */
551 			message("221 %s closing connection", MyHostName);
552 			if (InChild)
553 				ExitStat = EX_QUIT;
554 			finis();
555 
556 		  case CMDVERB:		/* set verbose mode */
557 			Verbose = TRUE;
558 			e->e_sendmode = SM_DELIVER;
559 			message("200 Verbose mode");
560 			break;
561 
562 		  case CMDONEX:		/* doing one transaction only */
563 			OneXact = TRUE;
564 			message("200 Only one transaction");
565 			break;
566 
567 # ifdef SMTPDEBUG
568 		  case CMDDBGQSHOW:	/* show queues */
569 			printf("Send Queue=");
570 			printaddr(e->e_sendqueue, TRUE);
571 			break;
572 
573 		  case CMDDBGDEBUG:	/* set debug mode */
574 			tTsetup(tTdvect, sizeof tTdvect, "0-99.1");
575 			tTflag(p);
576 			message("200 Debug set");
577 			break;
578 
579 # else /* not SMTPDEBUG */
580 
581 		  case CMDDBGQSHOW:	/* show queues */
582 		  case CMDDBGDEBUG:	/* set debug mode */
583 # ifdef LOG
584 			if (LogLevel > 0)
585 				syslog(LOG_NOTICE,
586 				    "\"%s\" command from %s (%s)",
587 				    c->cmdname, RealHostName,
588 				    anynet_ntoa(&RealHostAddr));
589 # endif
590 			/* FALL THROUGH */
591 # endif /* SMTPDEBUG */
592 
593 		  case CMDERROR:	/* unknown command */
594 			message("500 Command unrecognized");
595 			break;
596 
597 		  default:
598 			errno = 0;
599 			syserr("500 smtp: unknown code %d", c->cmdcode);
600 			break;
601 		}
602 	}
603 }
604 /*
605 **  SKIPWORD -- skip a fixed word.
606 **
607 **	Parameters:
608 **		p -- place to start looking.
609 **		w -- word to skip.
610 **
611 **	Returns:
612 **		p following w.
613 **		NULL on error.
614 **
615 **	Side Effects:
616 **		clobbers the p data area.
617 */
618 
619 static char *
620 skipword(p, w)
621 	register char *p;
622 	char *w;
623 {
624 	register char *q;
625 
626 	/* find beginning of word */
627 	while (isascii(*p) && isspace(*p))
628 		p++;
629 	q = p;
630 
631 	/* find end of word */
632 	while (*p != '\0' && *p != ':' && !(isascii(*p) && isspace(*p)))
633 		p++;
634 	while (isascii(*p) && isspace(*p))
635 		*p++ = '\0';
636 	if (*p != ':')
637 	{
638 	  syntax:
639 		message("501 Syntax error");
640 		Errors++;
641 		return (NULL);
642 	}
643 	*p++ = '\0';
644 	while (isascii(*p) && isspace(*p))
645 		p++;
646 
647 	/* see if the input word matches desired word */
648 	if (strcasecmp(q, w))
649 		goto syntax;
650 
651 	return (p);
652 }
653 /*
654 **  PRINTVRFYADDR -- print an entry in the verify queue
655 **
656 **	Parameters:
657 **		a -- the address to print
658 **		last -- set if this is the last one.
659 **
660 **	Returns:
661 **		none.
662 **
663 **	Side Effects:
664 **		Prints the appropriate 250 codes.
665 */
666 
667 printvrfyaddr(a, last)
668 	register ADDRESS *a;
669 	bool last;
670 {
671 	char fmtbuf[20];
672 
673 	strcpy(fmtbuf, "250");
674 	fmtbuf[3] = last ? ' ' : '-';
675 
676 	if (strchr(a->q_paddr, '<') != NULL)
677 		strcpy(&fmtbuf[4], "%s");
678 	else if (a->q_fullname == NULL)
679 		strcpy(&fmtbuf[4], "<%s>");
680 	else
681 	{
682 		strcpy(&fmtbuf[4], "%s <%s>");
683 		message(fmtbuf, a->q_fullname, a->q_paddr);
684 		return;
685 	}
686 	message(fmtbuf, a->q_paddr);
687 }
688 /*
689 **  HELP -- implement the HELP command.
690 **
691 **	Parameters:
692 **		topic -- the topic we want help for.
693 **
694 **	Returns:
695 **		none.
696 **
697 **	Side Effects:
698 **		outputs the help file to message output.
699 */
700 
701 help(topic)
702 	char *topic;
703 {
704 	register FILE *hf;
705 	int len;
706 	char buf[MAXLINE];
707 	bool noinfo;
708 
709 	if (HelpFile == NULL || (hf = fopen(HelpFile, "r")) == NULL)
710 	{
711 		/* no help */
712 		errno = 0;
713 		message("502 HELP not implemented");
714 		return;
715 	}
716 
717 	if (topic == NULL || *topic == '\0')
718 		topic = "smtp";
719 	else
720 		makelower(topic);
721 
722 	len = strlen(topic);
723 	noinfo = TRUE;
724 
725 	while (fgets(buf, sizeof buf, hf) != NULL)
726 	{
727 		if (strncmp(buf, topic, len) == 0)
728 		{
729 			register char *p;
730 
731 			p = strchr(buf, '\t');
732 			if (p == NULL)
733 				p = buf;
734 			else
735 				p++;
736 			fixcrlf(p, TRUE);
737 			message("214-%s", p);
738 			noinfo = FALSE;
739 		}
740 	}
741 
742 	if (noinfo)
743 		message("504 HELP topic unknown");
744 	else
745 		message("214 End of HELP info");
746 	(void) fclose(hf);
747 }
748 /*
749 **  RUNINCHILD -- return twice -- once in the child, then in the parent again
750 **
751 **	Parameters:
752 **		label -- a string used in error messages
753 **
754 **	Returns:
755 **		zero in the child
756 **		one in the parent
757 **
758 **	Side Effects:
759 **		none.
760 */
761 
762 runinchild(label, e)
763 	char *label;
764 	register ENVELOPE *e;
765 {
766 	int childpid;
767 
768 	if (!OneXact)
769 	{
770 		childpid = dofork();
771 		if (childpid < 0)
772 		{
773 			syserr("%s: cannot fork", label);
774 			return (1);
775 		}
776 		if (childpid > 0)
777 		{
778 			auto int st;
779 
780 			/* parent -- wait for child to complete */
781 			st = waitfor(childpid);
782 			if (st == -1)
783 				syserr("%s: lost child", label);
784 
785 			/* if we exited on a QUIT command, complete the process */
786 			if (st == (EX_QUIT << 8))
787 				finis();
788 
789 			return (1);
790 		}
791 		else
792 		{
793 			/* child */
794 			InChild = TRUE;
795 			QuickAbort = FALSE;
796 			clearenvelope(e, FALSE);
797 		}
798 	}
799 
800 	/* open alias database */
801 	initaliases(AliasFile, FALSE, e);
802 
803 	return (0);
804 }
805 
806 # endif /* SMTP */
807