Import of sendmail version 8.11.0 into vendor branch SENDMAIL with

release tag v8_11_0.

Obtained from: ftp://ftp.sendmail.org/pub/sendmail/

5 files changed, 1264 insertions, 0 deletions

diff --git a/contrib/sendmail/vacation/Build b/contrib/sendmail/vacation/Build
new file mode 100755
index 0000000..fbd060c
--- /dev/null
+++ b/contrib/sendmail/vacation/Build
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+# Copyright (c) 1999 Sendmail, Inc. and its suppliers.
+#	All rights reserved.
+#
+# By using this file, you agree to the terms and conditions set
+# forth in the LICENSE file which can be found at the top level of
+# the sendmail distribution.
+#
+#
+#	$Id: Build,v 8.2 1999/03/02 02:35:21 peterh Exp $
+
+exec ../devtools/bin/Build $*
diff --git a/contrib/sendmail/vacation/Makefile b/contrib/sendmail/vacation/Makefile
new file mode 100644
index 0000000..7cc577f
--- /dev/null
+++ b/contrib/sendmail/vacation/Makefile
@@ -0,0 +1,17 @@
+#       $Id: Makefile,v 8.5 1999/09/23 22:36:45 ca Exp $
+
+SHELL= /bin/sh
+BUILD=   ./Build
+OPTIONS= $(CONFIG) $(FLAGS)
+
+all: FRC
+	$(SHELL) $(BUILD) $(OPTIONS) $@
+clean: FRC
+	$(SHELL) $(BUILD) $(OPTIONS) $@
+install: FRC
+	$(SHELL) $(BUILD) $(OPTIONS) $@
+
+fresh: FRC
+	$(SHELL) $(BUILD) $(OPTIONS) -c
+
+FRC:
diff --git a/contrib/sendmail/vacation/Makefile.m4 b/contrib/sendmail/vacation/Makefile.m4
new file mode 100644
index 0000000..71430eb
--- /dev/null
+++ b/contrib/sendmail/vacation/Makefile.m4
@@ -0,0 +1,19 @@
+include(confBUILDTOOLSDIR`/M4/switch.m4')
+
+# sendmail dir
+SMSRCDIR=	ifdef(`confSMSRCDIR', `confSMSRCDIR', `${SRCDIR}/sendmail')
+PREPENDDEF(`confENVDEF', `confMAPDEF')
+PREPENDDEF(`confINCDIRS', `-I${SMSRCDIR} ')
+
+bldPRODUCT_START(`executable', `vacation')
+define(`bldSOURCES', `vacation.c ')
+bldPUSH_SMLIB(`smutil')
+bldPUSH_SMLIB(`smdb')
+APPENDDEF(`confENVDEF', `-DNOT_SENDMAIL')
+bldPRODUCT_END
+
+bldPRODUCT_START(`manpage', `vacation')
+define(`bldSOURCES', `vacation.1')
+bldPRODUCT_END
+
+bldFINISH
diff --git a/contrib/sendmail/vacation/vacation.1 b/contrib/sendmail/vacation/vacation.1
new file mode 100644
index 0000000..54bb674
--- /dev/null
+++ b/contrib/sendmail/vacation/vacation.1
@@ -0,0 +1,200 @@
+.\" Copyright (c) 1999-2000 Sendmail, Inc. and its suppliers.
+.\"	All rights reserved.
+.\" Copyright (c) 1985, 1987, 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\"
+.\" By using this file, you agree to the terms and conditions set
+.\" forth in the LICENSE file which can be found at the top level of
+.\" the sendmail distribution.
+.\"
+.\"
+.\"	$Id: vacation.1,v 8.11 2000/03/17 07:32:50 gshapiro Exp $
+.\"
+.TH VACATION 1 "$Date: 2000/03/17 07:32:50 $"
+.SH NAME
+.B vacation
+\- return ``I am not here'' indication
+.SH SYNOPSIS
+.B vacation
+.B \-i
+.RB [ \-r 
+.IR interval ]
+.RB [ \-x ]
+.B vacation
+.RB [ \-a
+.IR alias ]
+.RB [ \-f
+.IR database ]
+.RB [ \-m
+.IR message ]
+.RB [ \-s
+.IR address ]
+.RB [ \-t
+.IR time ]
+.RB [ \-z ]
+.I login
+.SH DESCRIPTION
+.B Vacation
+returns a message to the sender of a message telling them that you
+are currently not reading your mail.  The intended use is in a
+.I .forward
+file.  For example, your
+.I .forward
+file might have:
+.IP
+\eeric, "|/usr/bin/vacation -a allman eric"
+.PP
+which would send messages to you (assuming your login name was eric) and
+reply to any messages for
+``eric''
+or
+``allman''.
+.PP
+Available options:
+.TP
+.BI \-a " alias"
+Handle messages for
+.Ar alias
+in the same manner as those received for the user's
+login name.
+.TP
+.BI \-f " filename"
+Use
+.I filename
+as name of the database instead of
+.IR ~/.vacation.db .
+Unless the
+.I filename
+starts with / it is relative to ~.
+.TP
+.B \-i
+Initialize the vacation database files.  It should be used
+before you modify your
+.I .forward
+file.
+.TP
+.BI \-m " filename"
+Use
+.I filename
+as name of the file containing the message to send instead of
+.IR ~/.vacation.msg .
+Unless the
+.I filename
+starts with / it is relative to ~.
+.TP
+.BI \-r " interval"
+Set the reply interval to
+.I interval
+days.  The default is one week.
+An interval of ``0'' or
+``infinite''
+(actually, any non-numeric character) will never send more than
+one reply.
+.TP
+.BI \-s " address"
+Use
+.I address
+instead of the sender address in the
+.I From 
+line to determine the reply address.
+.TP
+.BI \-t " time"
+Ignored, available only for compatibility with Sun's
+vacation program.
+.TP
+.B \-x
+reads an exclusion list from stdin (one address per line).
+Mails coming from an address
+in this exclusion list won't get a reply by
+.BR vacation .
+It is possible to exclude complete domains by specifying
+``@domain''
+as element of the exclusion list.
+.TP
+.B \-z
+Set the sender of the vacation message to
+``<>''
+instead of the user.
+This probably violates the RFCs since vacation messages are
+not required by a standards-track RFC to have a null reverse-path.
+.PP
+No message will be sent unless
+.I login
+(or an
+.I alias
+supplied using the
+.B \-a
+option) is part of either the
+``To:''
+or
+``Cc:''
+headers of the mail.
+No messages from
+``???-REQUEST'',
+``Postmaster'',
+``UUCP'',
+``MAILER'',
+or
+``MAILER-DAEMON''
+will be replied to (where these strings are
+case insensitive) nor is a notification sent if a
+``Precedence: bulk''
+or
+``Precedence: junk''
+line is included in the mail headers.
+The people who have sent you messages are maintained as a
+db(3)
+database in the file
+.I .vacation.db
+in your home directory.
+.PP
+.B Vacation
+expects a file
+.IR .vacation.msg ,
+in your home directory, containing a message to be sent back to each
+sender.  It should be an entire message (including headers).  For
+example, it might contain:
+.IP
+.nf
+From: eric@CS.Berkeley.EDU (Eric Allman)
+Subject: I am on vacation
+Delivered-By-The-Graces-Of: The Vacation program
+Precedence: bulk
+
+I am on vacation until July 22.  If you have something urgent,
+please contact Keith Bostic <bostic@CS.Berkeley.EDU>.
+--eric
+.fi 
+.PP
+.B Vacation
+reads the first line from the standard input for a
+UNIX
+``From''
+line to determine the sender.
+Sendmail(8)
+includes this
+``From''
+line automatically.
+.PP
+Fatal errors, such as calling
+.B vacation
+with incorrect arguments, or with non-existent
+.IR login s,
+are logged in the system log file, using
+syslog(8).
+.SH FILES
+.TP 1.8i
+~/.vacation.db
+database file
+.TP
+~/.vacation.msg
+message to send
+.SH SEE ALSO
+sendmail(8),
+syslog(8)
+.SH HISTORY
+The
+.B vacation
+command appeared in
+4.3BSD.
diff --git a/contrib/sendmail/vacation/vacation.c b/contrib/sendmail/vacation/vacation.c
new file mode 100644
index 0000000..d1c21e9
--- /dev/null
+++ b/contrib/sendmail/vacation/vacation.c
@@ -0,0 +1,1015 @@
+/*
+ * Copyright (c) 1999-2000 Sendmail, Inc. and its suppliers.
+ *	All rights reserved.
+ * Copyright (c) 1983, 1987, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ * Copyright (c) 1983 Eric P. Allman.  All rights reserved.
+ *
+ * By using this file, you agree to the terms and conditions set
+ * forth in the LICENSE file which can be found at the top level of
+ * the sendmail distribution.
+ *
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1998-2000 Sendmail, Inc. and its suppliers.\n\
+	All rights reserved.\n\
+     Copyright (c) 1983, 1987, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n\
+     Copyright (c) 1983 Eric P. Allman.  All rights reserved.\n";
+#endif /* ! lint */
+
+#ifndef lint
+static char id[] = "@(#)$Id: vacation.c,v 8.68.4.4 2000/07/18 05:10:29 gshapiro Exp $";
+#endif /* ! lint */
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <syslog.h>
+#include <time.h>
+#include <unistd.h>
+#ifdef EX_OK
+# undef EX_OK		/* unistd.h may have another use for this */
+#endif /* EX_OK */
+#include <sysexits.h>
+
+#include "sendmail/sendmail.h"
+#include "libsmdb/smdb.h"
+
+#if defined(__hpux) && !defined(HPUX11)
+# undef syslog		/* Undo hard_syslog conf.h change */
+#endif /* defined(__hpux) && !defined(HPUX11) */
+
+#ifndef _PATH_SENDMAIL
+# define _PATH_SENDMAIL "/usr/lib/sendmail"
+#endif /* ! _PATH_SENDMAIL */
+
+#define ONLY_ONCE	((time_t) 0)	/* send at most one reply */
+#define INTERVAL_UNDEF	((time_t) (-1))	/* no value given */
+
+uid_t	RealUid;
+gid_t	RealGid;
+char	*RealUserName;
+uid_t	RunAsUid;
+uid_t	RunAsGid;
+char	*RunAsUserName;
+int	Verbose = 2;
+bool	DontInitGroups = FALSE;
+uid_t	TrustedUid = 0;
+BITMAP256 DontBlameSendmail;
+
+/*
+**  VACATION -- return a message to the sender when on vacation.
+**
+**	This program is invoked as a message receiver.  It returns a
+**	message specified by the user to whomever sent the mail, taking
+**	care not to return a message too often to prevent "I am on
+**	vacation" loops.
+*/
+
+#define	VDB	".vacation"		/* vacation database */
+#define	VMSG	".vacation.msg"		/* vacation message */
+#define SECSPERDAY	(60 * 60 * 24)
+#define DAYSPERWEEK	7
+
+#ifndef TRUE
+# define TRUE	1
+# define FALSE	0
+#endif /* ! TRUE */
+
+#ifndef __P
+# ifdef __STDC__
+#  define __P(protos)	protos
+# else /* __STDC__ */
+#  define __P(protos)	()
+#  define const
+# endif /* __STDC__ */
+#endif /* ! __P */
+
+typedef struct alias
+{
+	char *name;
+	struct alias *next;
+} ALIAS;
+
+ALIAS *Names = NULL;
+
+SMDB_DATABASE *Db;
+
+char From[MAXLINE];
+
+#if _FFR_DEBUG
+void (*msglog)(int, const char *, ...) = &syslog;
+static void debuglog __P((int, const char *, ...));
+#else /* _FFR_DEBUG */
+# define msglog		syslog
+#endif /* _FFR_DEBUG */
+
+int
+main(argc, argv)
+	int argc;
+	char **argv;
+{
+	bool iflag, emptysender, exclude;
+#if _FFR_LISTDB
+	bool lflag = FALSE;
+#endif /* _FFR_LISTDB */
+	int mfail = 0, ufail = 0;
+	int ch;
+	int result;
+	time_t interval;
+	struct passwd *pw;
+	ALIAS *cur;
+	char *dbfilename = VDB;
+	char *msgfilename = VMSG;
+	char *name;
+	SMDB_USER_INFO user_info;
+	static char rnamebuf[MAXNAME];
+	extern int optind, opterr;
+	extern char *optarg;
+	extern void usage __P((void));
+	extern void setinterval __P((time_t));
+	extern void readheaders __P((void));
+	extern bool recent __P((void));
+	extern void setreply __P((char *, time_t));
+	extern void sendmessage __P((char *, char *, bool));
+	extern void xclude __P((FILE *));
+
+	/* Vars needed to link with smutil */
+	clrbitmap(DontBlameSendmail);
+	RunAsUid = RealUid = getuid();
+	RunAsGid = RealGid = getgid();
+	pw = getpwuid(RealUid);
+	if (pw != NULL)
+	{
+		if (strlen(pw->pw_name) > MAXNAME - 1)
+			pw->pw_name[MAXNAME] = '\0';
+		snprintf(rnamebuf, sizeof rnamebuf, "%s", pw->pw_name);
+	}
+	else
+		snprintf(rnamebuf, sizeof rnamebuf,
+			 "Unknown UID %d", (int) RealUid);
+	RunAsUserName = RealUserName = rnamebuf;
+
+#ifdef LOG_MAIL
+	openlog("vacation", LOG_PID, LOG_MAIL);
+#else /* LOG_MAIL */
+	openlog("vacation", LOG_PID);
+#endif /* LOG_MAIL */
+
+	opterr = 0;
+	iflag = FALSE;
+	emptysender = FALSE;
+	exclude = FALSE;
+	interval = INTERVAL_UNDEF;
+	*From = '\0';
+
+#if _FFR_DEBUG && _FFR_LISTDB
+# define OPTIONS		"a:df:Iilm:r:s:t:xz"
+#else /* _FFR_DEBUG && _FFR_LISTDB */
+# if _FFR_DEBUG
+#  define OPTIONS		"a:df:Iim:r:s:t:xz"
+# else /* _FFR_DEBUG */
+#  if _FFR_LISTDB
+#   define OPTIONS		"a:f:Iilm:r:s:t:xz"
+#  else /* _FFR_LISTDB */
+#   define OPTIONS		"a:f:Iim:r:s:t:xz"
+#  endif /* _FFR_LISTDB */
+# endif /* _FFR_DEBUG */
+#endif /* _FFR_DEBUG && _FFR_LISTDB */
+
+	while (mfail == 0 && ufail == 0 &&
+	       (ch = getopt(argc, argv, OPTIONS)) != -1)
+	{
+		switch((char)ch)
+		{
+		  case 'a':			/* alias */
+			cur = (ALIAS *)malloc((u_int)sizeof(ALIAS));
+			if (cur == NULL)
+			{
+				mfail++;
+				break;
+			}
+			cur->name = optarg;
+			cur->next = Names;
+			Names = cur;
+			break;
+
+#if _FFR_DEBUG
+		case 'd':			/* debug mode */
+			msglog = &debuglog;
+			break;
+#endif /* _FFR_DEBUG */
+
+
+		  case 'f':		/* alternate database */
+			dbfilename = optarg;
+			break;
+
+		  case 'I':			/* backward compatible */
+		  case 'i':			/* init the database */
+			iflag = TRUE;
+			break;
+
+#if _FFR_LISTDB
+		  case 'l':
+			lflag = TRUE;		/* list the database */
+			break;
+#endif /* _FFR_LISTDB */
+
+		  case 'm':		/* alternate message file */
+			msgfilename = optarg;
+			break;
+
+		  case 'r':
+			if (isascii(*optarg) && isdigit(*optarg))
+			{
+				interval = atol(optarg) * SECSPERDAY;
+				if (interval < 0)
+					ufail++;
+			}
+			else
+				interval = ONLY_ONCE;
+			break;
+
+		  case 's':		/* alternate sender name */
+			(void) strlcpy(From, optarg, sizeof From);
+			break;
+
+		  case 't':		/* SunOS: -t1d (default expire) */
+			break;
+
+		  case 'x':
+			exclude = TRUE;
+			break;
+
+		  case 'z':
+			emptysender = TRUE;
+			break;
+
+		  case '?':
+		  default:
+			ufail++;
+			break;
+		}
+	}
+	argc -= optind;
+	argv += optind;
+
+	if (mfail != 0)
+	{
+		msglog(LOG_NOTICE,
+		       "vacation: can't allocate memory for alias.\n");
+		exit(EX_TEMPFAIL);
+	}
+	if (ufail != 0)
+		usage();
+
+	if (argc != 1)
+	{
+		if (!iflag &&
+#if _FFR_LISTDB
+		    !lflag &&
+#endif /* _FFR_LISTDB */
+		    !exclude)
+			usage();
+		if ((pw = getpwuid(getuid())) == NULL)
+		{
+			msglog(LOG_ERR,
+			       "vacation: no such user uid %u.\n", getuid());
+			exit(EX_NOUSER);
+		}
+	}
+#if _FFR_BLACKBOX
+	name = *argv;
+#else /* _FFR_BLACKBOX */
+	else if ((pw = getpwnam(*argv)) == NULL)
+	{
+		msglog(LOG_ERR, "vacation: no such user %s.\n", *argv);
+		exit(EX_NOUSER);
+	}
+	name = pw->pw_name;
+	if (chdir(pw->pw_dir) != 0)
+	{
+		msglog(LOG_NOTICE,
+		       "vacation: no such directory %s.\n", pw->pw_dir);
+		exit(EX_NOINPUT);
+	}
+#endif /* _FFR_BLACKBOX */
+	user_info.smdbu_id = pw->pw_uid;
+	user_info.smdbu_group_id = pw->pw_gid;
+	(void) strlcpy(user_info.smdbu_name, pw->pw_name,
+		       SMDB_MAX_USER_NAME_LEN);
+
+	result = smdb_open_database(&Db, dbfilename,
+				    O_CREAT|O_RDWR | (iflag ? O_TRUNC : 0),
+				    S_IRUSR|S_IWUSR, SFF_CREAT,
+				    SMDB_TYPE_DEFAULT, &user_info, NULL);
+	if (result != SMDBE_OK)
+	{
+		msglog(LOG_NOTICE, "vacation: %s: %s\n", dbfilename,
+		       errstring(result));
+		exit(EX_DATAERR);
+	}
+
+#if _FFR_LISTDB
+	if (lflag)
+	{
+		static void listdb __P((void));
+
+		listdb();
+		(void)Db->smdb_close(Db);
+		exit(EX_OK);
+	}
+#endif /* _FFR_LISTDB */
+
+	if (interval != INTERVAL_UNDEF)
+		setinterval(interval);
+
+	if (iflag)
+	{
+		result = Db->smdb_close(Db);
+		if (!exclude)
+			exit(EX_OK);
+	}
+
+	if (exclude)
+	{
+		xclude(stdin);
+		result = Db->smdb_close(Db);
+		exit(EX_OK);
+	}
+
+	if ((cur = (ALIAS *)malloc((u_int)sizeof(ALIAS))) == NULL)
+	{
+		msglog(LOG_NOTICE,
+		       "vacation: can't allocate memory for username.\n");
+		exit(EX_OSERR);
+	}
+	cur->name = name;
+	cur->next = Names;
+	Names = cur;
+
+	readheaders();
+	if (!recent())
+	{
+		time_t now;
+
+		(void) time(&now);
+		setreply(From, now);
+		result = Db->smdb_close(Db);
+		sendmessage(name, msgfilename, emptysender);
+	}
+	else
+		result = Db->smdb_close(Db);
+	exit(EX_OK);
+	/* NOTREACHED */
+	return EX_OK;
+}
+
+/*
+** READHEADERS -- read mail headers
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		nothing.
+**
+*/
+void
+readheaders()
+{
+	bool tome, cont;
+	register char *p;
+	register ALIAS *cur;
+	char buf[MAXLINE];
+	extern bool junkmail __P((char *));
+	extern bool nsearch __P((char *, char *));
+
+	cont = tome = FALSE;
+	while (fgets(buf, sizeof(buf), stdin) && *buf != '\n')
+	{
+		switch(*buf)
+		{
+		  case 'F':		/* "From " */
+			cont = FALSE;
+			if (strncmp(buf, "From ", 5) == 0)
+			{
+				bool quoted = FALSE;
+
+				p = buf + 5;
+				while (*p != '\0')
+				{
+					/* escaped character */
+					if (*p == '\\')
+					{
+						p++;
+						if (*p == '\0')
+						{
+							msglog(LOG_NOTICE,
+							       "vacation: badly formatted \"From \" line.\n");
+							exit(EX_DATAERR);
+						}
+					}
+					else if (*p == '"')
+						quoted = !quoted;
+					else if (*p == '\r' || *p == '\n')
+						break;
+					else if (*p == ' ' && !quoted)
+						break;
+					p++;
+				}
+				if (quoted)
+				{
+					msglog(LOG_NOTICE,
+					       "vacation: badly formatted \"From \" line.\n");
+					exit(EX_DATAERR);
+				}
+				*p = '\0';
+
+				/* ok since both strings have MAXLINE length */
+				if (*From == '\0')
+					(void)strlcpy(From, buf + 5,
+						      sizeof From);
+				if ((p = strchr(buf + 5, '\n')) != NULL)
+					*p = '\0';
+				if (junkmail(buf + 5))
+					exit(EX_OK);
+			}
+			break;
+
+		  case 'P':		/* "Precedence:" */
+		  case 'p':
+			cont = FALSE;
+			if (strlen(buf) <= 10 ||
+			    strncasecmp(buf, "Precedence", 10) != 0 ||
+			    (buf[10] != ':' && buf[10] != ' ' &&
+			     buf[10] != '\t'))
+				break;
+			if ((p = strchr(buf, ':')) == NULL)
+				break;
+			while (*++p != '\0' && isascii(*p) && isspace(*p));
+			if (*p == '\0')
+				break;
+			if (strncasecmp(p, "junk", 4) == 0 ||
+			    strncasecmp(p, "bulk", 4) == 0 ||
+			    strncasecmp(p, "list", 4) == 0)
+				exit(EX_OK);
+			break;
+
+		  case 'C':		/* "Cc:" */
+		  case 'c':
+			if (strncasecmp(buf, "Cc:", 3) != 0)
+				break;
+			cont = TRUE;
+			goto findme;
+
+		  case 'T':		/* "To:" */
+		  case 't':
+			if (strncasecmp(buf, "To:", 3) != 0)
+				break;
+			cont = TRUE;
+			goto findme;
+
+		  default:
+			if (!isascii(*buf) || !isspace(*buf) || !cont || tome)
+			{
+				cont = FALSE;
+				break;
+			}
+findme:
+			for (cur = Names;
+			     !tome && cur != NULL;
+			     cur = cur->next)
+				tome = nsearch(cur->name, buf);
+		}
+	}
+	if (!tome)
+		exit(EX_OK);
+	if (*From == '\0')
+	{
+		msglog(LOG_NOTICE, "vacation: no initial \"From \" line.\n");
+		exit(EX_DATAERR);
+	}
+}
+
+/*
+** NSEARCH --
+**	do a nice, slow, search of a string for a substring.
+**
+**	Parameters:
+**		name -- name to search.
+**		str -- string in which to search.
+**
+**	Returns:
+**		is name a substring of str?
+**
+*/
+bool
+nsearch(name, str)
+	register char *name, *str;
+{
+	register size_t len;
+	register char *s;
+
+	len = strlen(name);
+
+	for (s = str; *s != '\0'; ++s)
+	{
+		/*
+		**  Check to make sure that the string matches and
+		**  the previous character is not an alphanumeric and
+		**  the next character after the match is not an alphanumeric.
+		**
+		**  This prevents matching "eric" to "derick" while still
+		**  matching "eric" to "<eric+detail>".
+		*/
+
+		if (tolower(*s) == tolower(*name) &&
+		    strncasecmp(name, s, len) == 0 &&
+		    (s == str || !isascii(*(s - 1)) || !isalnum(*(s - 1))) &&
+		    (!isascii(*(s + len)) || !isalnum(*(s + len))))
+			return TRUE;
+	}
+	return FALSE;
+}
+
+/*
+** JUNKMAIL --
+**	read the header and return if automagic/junk/bulk/list mail
+**
+**	Parameters:
+**		from -- sender address.
+**
+**	Returns:
+**		is this some automated/junk/bulk/list mail?
+**
+*/
+bool
+junkmail(from)
+	char *from;
+{
+	register size_t len;
+	register char *p;
+	register struct ignore *cur;
+	static struct ignore
+	{
+		char	*name;
+		size_t	len;
+	} ignore[] =
+	{
+		{ "-request",		8	},
+		{ "postmaster",		10	},
+		{ "uucp",		4	},
+		{ "mailer-daemon",	13	},
+		{ "mailer",		6	},
+		{ "-relay",		6	},
+		{ NULL,			0	}
+	};
+
+	/*
+	 * This is mildly amusing, and I'm not positive it's right; trying
+	 * to find the "real" name of the sender, assuming that addresses
+	 * will be some variant of:
+	 *
+	 * From site!site!SENDER%site.domain%site.domain@site.domain
+	 */
+	if ((p = strchr(from, '%')) == NULL &&
+	    (p = strchr(from, '@')) == NULL)
+	{
+		if ((p = strrchr(from, '!')) != NULL)
+			++p;
+		else
+			p = from;
+		for (; *p; ++p)
+			continue;
+	}
+	len = p - from;
+	for (cur = ignore; cur->name != NULL; ++cur)
+	{
+		if (len >= cur->len &&
+		    strncasecmp(cur->name, p - cur->len, cur->len) == 0)
+			return TRUE;
+	}
+	return FALSE;
+}
+
+#define	VIT	"__VACATION__INTERVAL__TIMER__"
+
+/*
+** RECENT --
+**	find out if user has gotten a vacation message recently.
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		TRUE iff user has gotten a vacation message recently.
+**
+*/
+bool
+recent()
+{
+	SMDB_DBENT key, data;
+	time_t then, next;
+	bool trydomain = FALSE;
+	int st;
+	char *domain;
+
+	memset(&key, '\0', sizeof key);
+	memset(&data, '\0', sizeof data);
+
+	/* get interval time */
+	key.data.data = VIT;
+	key.data.size = sizeof(VIT);
+
+	st = Db->smdb_get(Db, &key, &data, 0);
+	if (st != SMDBE_OK)
+		next = SECSPERDAY * DAYSPERWEEK;
+	else
+		memmove(&next, data.data.data, sizeof(next));
+
+	memset(&data, '\0', sizeof data);
+
+	/* get record for this address */
+	key.data.data = From;
+	key.data.size = strlen(From);
+
+	do
+	{
+		st = Db->smdb_get(Db, &key, &data, 0);
+		if (st == SMDBE_OK)
+		{
+			memmove(&then, data.data.data, sizeof(then));
+			if (next == ONLY_ONCE || then == ONLY_ONCE ||
+			    then + next > time(NULL))
+				return TRUE;
+		}
+		if ((trydomain = !trydomain) &&
+		    (domain = strchr(From, '@')) != NULL)
+		{
+			key.data.data = domain;
+			key.data.size = strlen(domain);
+		}
+	} while (trydomain);
+	return FALSE;
+}
+
+/*
+** SETINTERVAL --
+**	store the reply interval
+**
+**	Parameters:
+**		interval -- time interval for replies.
+**
+**	Returns:
+**		nothing.
+**
+**	Side Effects:
+**		stores the reply interval in database.
+*/
+void
+setinterval(interval)
+	time_t interval;
+{
+	SMDB_DBENT key, data;
+
+	memset(&key, '\0', sizeof key);
+	memset(&data, '\0', sizeof data);
+
+	key.data.data = VIT;
+	key.data.size = sizeof(VIT);
+	data.data.data = (char*) &interval;
+	data.data.size = sizeof(interval);
+	(void)(Db->smdb_put)(Db, &key, &data, 0);
+}
+
+/*
+** SETREPLY --
+**	store that this user knows about the vacation.
+**
+**	Parameters:
+**		from -- sender address.
+**		when -- last reply time.
+**
+**	Returns:
+**		nothing.
+**
+**	Side Effects:
+**		stores user/time in database.
+*/
+void
+setreply(from, when)
+	char *from;
+	time_t when;
+{
+	SMDB_DBENT key, data;
+
+	memset(&key, '\0', sizeof key);
+	memset(&data, '\0', sizeof data);
+
+	key.data.data = from;
+	key.data.size = strlen(from);
+	data.data.data = (char*) &when;
+	data.data.size = sizeof(when);
+	(void)(Db->smdb_put)(Db, &key, &data, 0);
+}
+
+/*
+** XCLUDE --
+**	add users to vacation db so they don't get a reply.
+**
+**	Parameters:
+**		f -- file pointer with list of address to exclude
+**
+**	Returns:
+**		nothing.
+**
+**	Side Effects:
+**		stores users in database.
+*/
+void
+xclude(f)
+	FILE *f;
+{
+	char buf[MAXLINE], *p;
+
+	if (f == NULL)
+		return;
+	while (fgets(buf, sizeof buf, f))
+	{
+		if ((p = strchr(buf, '\n')) != NULL)
+			*p = '\0';
+		setreply(buf, ONLY_ONCE);
+	}
+}
+
+/*
+** SENDMESSAGE --
+**	exec sendmail to send the vacation file to sender
+**
+**	Parameters:
+**		myname -- user name.
+**		msgfn -- name of file with vacation message.
+**		emptysender -- use <> as sender address?
+**
+**	Returns:
+**		nothing.
+**
+**	Side Effects:
+**		sends vacation reply.
+*/
+void
+sendmessage(myname, msgfn, emptysender)
+	char *myname;
+	char *msgfn;
+	bool emptysender;
+{
+	FILE *mfp, *sfp;
+	int i;
+	int pvect[2];
+	char buf[MAXLINE];
+
+	mfp = fopen(msgfn, "r");
+	if (mfp == NULL)
+	{
+		if (msgfn[0] == '/')
+			msglog(LOG_NOTICE, "vacation: no %s file.\n", msgfn);
+		else
+			msglog(LOG_NOTICE, "vacation: no ~%s/%s file.\n",
+			       myname, msgfn);
+		exit(EX_NOINPUT);
+	}
+	if (pipe(pvect) < 0)
+	{
+		msglog(LOG_ERR, "vacation: pipe: %s", errstring(errno));
+		exit(EX_OSERR);
+	}
+	i = fork();
+	if (i < 0)
+	{
+		msglog(LOG_ERR, "vacation: fork: %s", errstring(errno));
+		exit(EX_OSERR);
+	}
+	if (i == 0)
+	{
+		(void) dup2(pvect[0], 0);
+		(void) close(pvect[0]);
+		(void) close(pvect[1]);
+		(void) fclose(mfp);
+		if (emptysender)
+			myname = "<>";
+		(void) execl(_PATH_SENDMAIL, "sendmail", "-f", myname, "--",
+		      From, NULL);
+		msglog(LOG_ERR, "vacation: can't exec %s: %s",
+			_PATH_SENDMAIL, errstring(errno));
+		exit(EX_UNAVAILABLE);
+	}
+	/* check return status of the following calls? XXX */
+	(void) close(pvect[0]);
+	if ((sfp = fdopen(pvect[1], "w")) != NULL)
+	{
+		(void) fprintf(sfp, "To: %s\n", From);
+		(void) fprintf(sfp, "Auto-Submitted: auto-generated\n");
+		while (fgets(buf, sizeof buf, mfp))
+			(void) fputs(buf, sfp);
+		(void) fclose(mfp);
+		(void) fclose(sfp);
+	}
+	else
+	{
+		(void) fclose(mfp);
+		msglog(LOG_ERR, "vacation: can't open pipe to sendmail");
+		exit(EX_UNAVAILABLE);
+	}
+}
+
+void
+usage()
+{
+	msglog(LOG_NOTICE, "uid %u: usage: vacation [-i] [-a alias]%s [-f db]%s [-m msg] [-r interval] [-s sender] [-t time] [-x] [-z] login\n",
+	       getuid(),
+#if _FFR_DEBUG
+	       " [-d]",
+#else /* _FFR_DEBUG */
+	       "",
+#endif /* _FFR_DEBUG */
+#if _FFR_LISTDB
+	       " [-l]"
+#else /* _FFR_LISTDB */
+	       ""
+#endif /* _FFR_LISTDB */
+	       );
+	exit(EX_USAGE);
+}
+
+#if _FFR_LISTDB
+/*
+** LISTDB -- list the contents of the vacation database
+**
+**	Parameters:
+**		none.
+**
+**	Returns:
+**		nothing.
+*/
+
+static void
+listdb()
+{
+	int result;
+	time_t t;
+	SMDB_CURSOR *cursor = NULL;
+	SMDB_DBENT db_key, db_value;
+
+	memset(&db_key, '\0', sizeof db_key);
+	memset(&db_value, '\0', sizeof db_value);
+
+	result = Db->smdb_cursor(Db, &cursor, 0);
+	if (result != SMDBE_OK)
+	{
+		fprintf(stderr, "vacation: set cursor: %s\n",
+			errstring(result));
+		return;
+	}
+
+	while ((result = cursor->smdbc_get(cursor, &db_key, &db_value,
+					   SMDB_CURSOR_GET_NEXT)) == SMDBE_OK)
+	{
+		/* skip magic VIT entry */
+		if ((int)db_key.data.size -1 == strlen(VIT) &&
+		    strncmp((char *)db_key.data.data, VIT,
+			    (int)db_key.data.size - 1) == 0)
+			continue;
+
+		/* skip bogus values */
+		if (db_value.data.size != sizeof t)
+		{
+			fprintf(stderr, "vacation: %.*s invalid time stamp\n",
+				(int) db_key.data.size,
+				(char *) db_key.data.data);
+			continue;
+		}
+
+		memcpy(&t, db_value.data.data, sizeof t);
+
+		if (db_key.data.size > 40)
+			db_key.data.size = 40;
+
+		printf("%-40.*s %-10s",
+		       (int) db_key.data.size, (char *) db_key.data.data,
+		       ctime(&t));
+
+		memset(&db_key, '\0', sizeof db_key);
+		memset(&db_value, '\0', sizeof db_value);
+	}
+
+	if (result != SMDBE_OK && result != SMDBE_LAST_ENTRY)
+	{
+		fprintf(stderr,	"vacation: get value at cursor: %s\n",
+			errstring(result));
+		if (cursor != NULL)
+		{
+			(void) cursor->smdbc_close(cursor);
+			cursor = NULL;
+		}
+		return;
+	}
+	(void) cursor->smdbc_close(cursor);
+	cursor = NULL;
+}
+#endif /* _FFR_LISTDB */
+
+#if _FFR_DEBUG
+/*
+** DEBUGLOG -- write message to standard error
+**
+**	Append a message to the standard error for the convenience of
+**	end-users debugging without access to the syslog messages.
+**
+**	Parameters:
+**		i -- syslog log level
+**		fmt -- string format
+**
+**	Returns:
+**		nothing.
+*/
+
+/*VARARGS2*/
+static void
+#ifdef __STDC__
+debuglog(int i, const char *fmt, ...)
+#else /* __STDC__ */
+debuglog(i, fmt, va_alist)
+	int i;
+	const char *fmt;
+	va_dcl
+#endif /* __STDC__ */
+
+{
+	VA_LOCAL_DECL
+
+	VA_START(fmt);
+	vfprintf(stderr, fmt, ap);
+	VA_END;
+}
+#endif /* _FFR_DEBUG */
+
+/*VARARGS1*/
+void
+#ifdef __STDC__
+message(const char *msg, ...)
+#else /* __STDC__ */
+message(msg, va_alist)
+	const char *msg;
+	va_dcl
+#endif /* __STDC__ */
+{
+	const char *m;
+	VA_LOCAL_DECL
+
+	m = msg;
+	if (isascii(m[0]) && isdigit(m[0]) &&
+	    isascii(m[1]) && isdigit(m[1]) &&
+	    isascii(m[2]) && isdigit(m[2]) && m[3] == ' ')
+		m += 4;
+	VA_START(msg);
+	(void) vfprintf(stderr, m, ap);
+	VA_END;
+	(void) fprintf(stderr, "\n");
+}
+
+/*VARARGS1*/
+void
+#ifdef __STDC__
+syserr(const char *msg, ...)
+#else /* __STDC__ */
+syserr(msg, va_alist)
+	const char *msg;
+	va_dcl
+#endif /* __STDC__ */
+{
+	const char *m;
+	VA_LOCAL_DECL
+
+	m = msg;
+	if (isascii(m[0]) && isdigit(m[0]) &&
+	    isascii(m[1]) && isdigit(m[1]) &&
+	    isascii(m[2]) && isdigit(m[2]) && m[3] == ' ')
+		m += 4;
+	VA_START(msg);
+	(void) vfprintf(stderr, m, ap);
+	VA_END;
+	(void) fprintf(stderr, "\n");
+}
+
+void
+dumpfd(fd, printclosed, logit)
+	int fd;
+	bool printclosed;
+	bool logit;
+{
+	return;
+}