Import sendmail 8.12.2

4 files changed, 330 insertions, 330 deletions

diff --git a/contrib/sendmail/mail.local/Makefile.m4 b/contrib/sendmail/mail.local/Makefile.m4
index 516850f..63a81a2 100644
--- a/contrib/sendmail/mail.local/Makefile.m4
+++ b/contrib/sendmail/mail.local/Makefile.m4
@@ -1,14 +1,15 @@
 include(confBUILDTOOLSDIR`/M4/switch.m4')
 
+define(`confREQUIRE_LIBSM', `true')
 # sendmail dir
 SMSRCDIR=     ifdef(`confSMSRCDIR', `confSMSRCDIR', `${SRCDIR}/sendmail')
 PREPENDDEF(`confENVDEF', `confMAPDEF')
 PREPENDDEF(`confINCDIRS', `-I${SMSRCDIR} ')
 
 bldPRODUCT_START(`executable', `mail.local')
-define(`bldNO_INSTALL')
+define(`bldNO_INSTALL', `true')
 define(`bldSOURCES', `mail.local.c ')
-bldPUSH_SMLIB(`smutil')
+bldPUSH_SMLIB(`sm')
 bldPRODUCT_END
 
 bldPRODUCT_START(`manpage', `mail.local')
diff --git a/contrib/sendmail/mail.local/README b/contrib/sendmail/mail.local/README
index 56dac40..651de4b 100644
--- a/contrib/sendmail/mail.local/README
+++ b/contrib/sendmail/mail.local/README
@@ -2,8 +2,8 @@ This directory contains the source files for mail.local.
 
 This is not intended to be used on *stock* System V derived systems such as
 Solaris or HP-UX, since they use a totally different approach to mailboxes
-(essentially, they have a setgid program rather than setuid, and they rely
-on the ability to "give away"  files to do their work).
+(essentially, they have a set-group-ID program rather than set-user-ID, and
+they rely on the ability to "give away" files to do their work).
 
 If you choose to run *this* mail.local on these systems then you may also
 need to replace the existing MUAs, as well as IMAP and POP servers, with
@@ -29,11 +29,11 @@ your site.config.m4 file with:
 
 	APPENDDEF(`conf_mail_local_ENVDEF', `-DMAILGID=6')
 
-mail.local will not be installed setuid root. To use it as local
+mail.local will not be installed set-user-ID root. To use it as local
 delivery agent without LMTP mode, use:
 
 	 MODIFY_MAILER_FLAGS(`LOCAL', `+S')
 
 in the .mc file.
 
-$Revision: 8.8 $, Last updated $Date: 1999/09/10 01:49:41 $
+$Revision: 8.10 $, Last updated $Date: 2001/09/08 01:21:04 $
diff --git a/contrib/sendmail/mail.local/mail.local.8 b/contrib/sendmail/mail.local/mail.local.8
index 939d772..5cd1c13 100644
--- a/contrib/sendmail/mail.local/mail.local.8
+++ b/contrib/sendmail/mail.local/mail.local.8
@@ -1,4 +1,4 @@
-.\" Copyright (c) 1998-2000 Sendmail, Inc. and its suppliers.
+.\" Copyright (c) 1998-2001 Sendmail, Inc. and its suppliers.
 .\"	 All rights reserved.
 .\" Copyright (c) 1990, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -8,18 +8,22 @@
 .\" the sendmail distribution.
 .\"
 .\"
-.\"	$Id: mail.local.8,v 8.14.14.5 2000/12/29 18:12:16 gshapiro Exp $
+.\"	$Id: mail.local.8,v 8.23 2001/04/05 23:27:35 gshapiro Exp $
 .\"
-.TH MAIL.LOCAL 8 "$Date: 2000/12/29 18:12:16 $"
+.TH MAIL.LOCAL 8 "$Date: 2001/04/05 23:27:35 $"
 .SH NAME
 mail.local
 \- store mail in a mailbox
 .SH SYNOPSIS
 .B mail.local
-.RB [ \-7 "] [" \-b "] [" \-d "] [" \-l "] [" \-f
-.IR from "] "
-.RB [ \-r 
-.IR from "] " "user ..."
+.RB [ \-7 "] [" \-b "] [" \-d "] [" \-D
+.IR mbdb ]
+.RB [ \-l "] [" \-f 
+\fIfrom\fR|\fB\-r\fR
+.IR from ]
+.RB [ \-h
+\fIfilename\fR ]
+.I "user ..."
 .SH DESCRIPTION
 .B Mail.local
 reads the standard input up to an end-of-file and appends it to each
@@ -40,6 +44,12 @@ if a mailbox exceeds quota.
 .TP 
 .B \-d
 Specify this is a delivery (for backward compatibility).
+This option has no effect.
+.TP 
+.BI \-D " mbdb"
+Specify the name of the mailbox database
+which is used to look up local recipient names.
+This option defaults to "pw", which means use getpwnam().
 .TP 
 .BI \-f " from"
 Specify the sender's name.
@@ -49,6 +59,11 @@ Turn on LMTP mode.
 .TP 
 .BI \-r " from"
 Specify the sender's name (for backward compatibility).
+Same as \-f.
+.TP
+.BI \-h " filename"
+Store incoming mail in \fIfilename\fR in the user's home directory instead
+of a system mail spool directory.
 .PP
 Individual mail messages in the mailbox are delimited by an empty
 line followed by a line beginning with the string ``From ''.
@@ -86,10 +101,10 @@ Used to set the appropriate time zone on the timestamp.
 temporary files
 .TP
 /var/mail/user
-user's mailbox directory
+user's default mailbox directory
 .TP 
 /var/mail/user.lock
-lock file for a user's mailbox
+lock file for a user's default mailbox
 .PD
 .SH SEE ALSO
 mail(1), 
diff --git a/contrib/sendmail/mail.local/mail.local.c b/contrib/sendmail/mail.local/mail.local.c
index cd96c5e..8a93f01 100644
--- a/contrib/sendmail/mail.local/mail.local.c
+++ b/contrib/sendmail/mail.local/mail.local.c
@@ -10,232 +10,111 @@
  *
  */
 
-#ifndef lint
-static char copyright[] =
+#include <sm/gen.h>
+
+SM_IDSTR(copyright,
 "@(#) Copyright (c) 1998-2001 Sendmail, Inc. and its suppliers.\n\
 	All rights reserved.\n\
      Copyright (c) 1990, 1993, 1994\n\
-	The Regents of the University of California.  All rights reserved.\n";
-#endif /* ! lint */
+	The Regents of the University of California.  All rights reserved.\n")
+
+SM_IDSTR(id, "@(#)$Id: mail.local.c,v 8.235 2001/12/30 04:59:39 gshapiro Exp $")
 
-#ifndef lint
-static char id[] = "@(#)$Id: mail.local.c,v 8.143.4.58 2001/06/01 05:33:31 gshapiro Exp $";
-#endif /* ! lint */
+#include <stdlib.h>
+#include <sm/errstring.h>
+#include <sm/io.h>
+#include <sm/limits.h>
+# include <unistd.h>
+# ifdef EX_OK
+#  undef EX_OK		/* unistd.h may have another use for this */
+# endif /* EX_OK */
+#include <sm/mbdb.h>
+#include <sm/sysexits.h>
 
 /*
 **  This is not intended to work on System V derived systems
 **  such as Solaris or HP-UX, since they use a totally different
-**  approach to mailboxes (essentially, they have a setgid program
-**  rather than setuid, and they rely on the ability to "give away"
+**  approach to mailboxes (essentially, they have a set-group-ID program
+**  rather than set-user-ID, and they rely on the ability to "give away"
 **  files to do their work).  IT IS NOT A BUG that this doesn't
 **  work on such architectures.
 */
 
 
-/* additional mode for open() */
-# define EXTRA_MODE 0
-
-# include <sys/types.h>
-# include <sys/param.h>
-# include <sys/stat.h>
+#include <stdio.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <time.h>
+#include <stdlib.h>
 # include <sys/socket.h>
 # include <sys/file.h>
-
 # include <netinet/in.h>
 # include <arpa/nameser.h>
-
-# include <fcntl.h>
 # include <netdb.h>
-#  include <pwd.h>
-# include <stdio.h>
-# include <stdlib.h>
-# include <string.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 <ctype.h>
+# include <pwd.h>
 
-# ifndef __P
-#  include "sendmail/cdefs.h"
-# endif /* ! __P */
-# include "sendmail/useful.h"
-
-extern size_t	strlcpy __P((char *, const char *, size_t));
-extern size_t	strlcat __P((char *, const char *, size_t));
-
-# if defined(BSD4_4) || defined(__osf__) || defined(__GNU_LIBRARY__) || defined(IRIX64) || defined(IRIX5) || defined(IRIX6)
-#  ifndef HASSTRERROR
-#   define HASSTRERROR	1
-#  endif /* ! HASSTRERROR */
-# endif /* defined(BSD4_4) || defined(__osf__) || defined(__GNU_LIBRARY__) || defined(IRIX64) || defined(IRIX5) || defined(IRIX6) */
-
-# include "sendmail/errstring.h"
-
-# ifndef LOCKTO_RM
-#  define LOCKTO_RM	300	/* timeout for stale lockfile removal */
-# endif /* ! LOCKTO_RM */
-# ifndef LOCKTO_GLOB
-#  define LOCKTO_GLOB	400	/* global timeout for lockfile creation */
-# endif /* ! LOCKTO_GLOB */
-
-# ifdef __STDC__
-#  include <stdarg.h>
-#  define REALLOC(ptr, size)	realloc(ptr, size)
-# else /* __STDC__ */
-#  include <varargs.h>
-/* define a realloc() which works for NULL pointers */
-#  define REALLOC(ptr, size)	(((ptr) == NULL) ? malloc(size) : realloc(ptr, size))
-# endif /* __STDC__ */
-
-# if (defined(sun) && defined(__svr4__)) || defined(__SVR4)
-#  define USE_LOCKF	1
-#  define USE_SETEUID	1
-#   define _PATH_MAILDIR	"/var/mail"
-# endif /* (defined(sun) && defined(__svr4__)) || defined(__SVR4) */
-
-# ifdef NCR_MP_RAS3
-#  define USE_LOCKF	1
-#  define HASSNPRINTF	1
-#   define _PATH_MAILDIR	"/var/mail"
-# endif /* NCR_MP_RAS3 */
-
-# if defined(_AIX)
-#  define USE_LOCKF	1
-#  define USE_SETEUID	1
-# endif /* defined(_AIX) */
-
-# if defined(__hpux)
-#  define USE_LOCKF	1
-#  define USE_SETRESUID	1
-# endif /* defined(__hpux) */
-
-# ifdef DGUX
-#  define HASSNPRINTF	1
-#  define USE_LOCKF	1
-# endif /* DGUX */
-
-# if defined(_CRAY)
-#  if !defined(MAXPATHLEN)
-#   define MAXPATHLEN PATHSIZE
-#  endif /* !defined(MAXPATHLEN) */
-#   define _PATH_MAILDIR	"/usr/spool/mail"
-# endif /* defined(_CRAY) */
-
-# if defined(NeXT) && !defined(__APPLE__)
-#  include <libc.h>
-#   define _PATH_MAILDIR	"/usr/spool/mail"
-#  define S_IRUSR	S_IREAD
-#  define S_IWUSR	S_IWRITE
-# endif /* defined(NeXT) && !defined(__APPLE__) */
-
-# if defined(IRIX64) || defined(IRIX5) || defined(IRIX6)
-#   include <paths.h>
-# endif /* defined(IRIX64) || defined(IRIX5) || defined(IRIX6) */
+#include <sm/string.h>
+#include <syslog.h>
+#include <ctype.h>
 
-/*
- * If you don't have flock, you could try using lockf instead.
- */
+#include <sm/conf.h>
+#include <sendmail/pathnames.h>
 
-# ifdef USE_LOCKF
-#  define flock(a, b)	lockf(a, b, 0)
-#  ifdef LOCK_EX
-#   undef LOCK_EX
-#  endif /* LOCK_EX */
-#  define LOCK_EX	F_LOCK
-# endif /* USE_LOCKF */
-
-# ifndef LOCK_EX
-#  include <sys/file.h>
-# endif /* ! LOCK_EX */
-
-# if defined(BSD4_4) || defined(__GLIBC__)
-#   include <paths.h>
-#  define _PATH_LOCTMP	"/tmp/local.XXXXXX"
-# endif /* defined(BSD4_4) || defined(__GLIBC__) */
-
-# ifdef BSD4_4
-#  define HAS_ST_GEN	1
-# else /* BSD4_4 */
-#  ifndef _BSD_VA_LIST_
-#   define _BSD_VA_LIST_	va_list
-#  endif /* ! _BSD_VA_LIST_ */
-# endif /* BSD4_4 */
-
-# if defined(BSD4_4) || defined(linux)
-#  define HASSNPRINTF	1
-# else /* defined(BSD4_4) || defined(linux) */
-#  ifndef ultrix
-extern FILE	*fdopen __P((int, const char *));
-#  endif /* ! ultrix */
-# endif /* defined(BSD4_4) || defined(linux) */
-
-# if SOLARIS >= 20300 || (SOLARIS < 10000 && SOLARIS >= 203)
-#  define CONTENTLENGTH	1	/* Needs the Content-Length header */
-# endif /* SOLARIS >= 20300 || (SOLARIS < 10000 && SOLARIS >= 203) */
-
-# if SOLARIS >= 20600 || (SOLARIS < 10000 && SOLARIS >= 206)
-#  define HASSNPRINTF	1		/* has snprintf starting in 2.6 */
-# endif /* SOLARIS >= 20600 || (SOLARIS < 10000 && SOLARIS >= 206) */
-
-# ifdef HPUX11
-#  define HASSNPRINTF	1		/* has snprintf starting in 11.X */
-# endif /* HPUX11 */
-
-# if _AIX4 >= 40300
-#  define HASSNPRINTF	1		/* has snprintf starting in 4.3 */
-# endif /* _AIX4 >= 40300 */
-
-# if !HASSNPRINTF && !SFIO
-extern int	snprintf __P((char *, size_t, const char *, ...));
-#  ifndef _CRAY
-extern int	vsnprintf __P((char *, size_t, const char *, ...));
-#  endif /* ! _CRAY */
-# endif /* !HASSNPRINTF && !SFIO */
 
-/*
-**  If you don't have setreuid, and you have saved uids, and you have
-**  a seteuid() call that doesn't try to emulate using setuid(), then
-**  you can try defining USE_SETEUID.
-*/
+/* additional mode for open() */
+# define EXTRA_MODE 0
+
 
-# ifdef USE_SETEUID
-#  define setreuid(r, e)		seteuid(e)
-# endif /* USE_SETEUID */
+#ifndef LOCKTO_RM
+# define LOCKTO_RM	300	/* timeout for stale lockfile removal */
+#endif /* ! LOCKTO_RM */
+#ifndef LOCKTO_GLOB
+# define LOCKTO_GLOB	400	/* global timeout for lockfile creation */
+#endif /* ! LOCKTO_GLOB */
+
+/* define a realloc() which works for NULL pointers */
+#define REALLOC(ptr, size)	(((ptr) == NULL) ? malloc(size) : realloc(ptr, size))
 
 /*
-**  And of course on hpux you have setresuid()
+**  If you don't have flock, you could try using lockf instead.
 */
 
-# ifdef USE_SETRESUID
-#  define setreuid(r, e)		setresuid(-1, e, -1)
-# endif /* USE_SETRESUID */
+#ifdef LDA_USE_LOCKF
+# define flock(a, b)	lockf(a, b, 0)
+# ifdef LOCK_EX
+#  undef LOCK_EX
+# endif /* LOCK_EX */
+# define LOCK_EX	F_LOCK
+#endif /* LDA_USE_LOCKF */
 
-# ifndef _PATH_LOCTMP
-#  define _PATH_LOCTMP	"/tmp/local.XXXXXX"
-# endif /* ! _PATH_LOCTMP */
-#  ifndef _PATH_MAILDIR
-#   define _PATH_MAILDIR	"/var/spool/mail"
-#  endif /* ! _PATH_MAILDIR */
+#ifndef LOCK_EX
+# include <sys/file.h>
+#endif /* ! LOCK_EX */
 
-# ifndef S_ISREG
-#  define S_ISREG(mode)	(((mode) & _S_IFMT) == S_IFREG)
-# endif /* ! S_ISREG */
+/*
+**  If you don't have setreuid, and you have saved uids, and you have
+**  a seteuid() call that doesn't try to emulate using setuid(), then
+**  you can try defining LDA_USE_SETEUID.
+*/
 
-# ifdef MAILLOCK
-#  include <maillock.h>
-# endif /* MAILLOCK */
+#ifdef LDA_USE_SETEUID
+# define setreuid(r, e)		seteuid(e)
+#endif /* LDA_USE_SETEUID */
 
-# define U_UID pw->pw_uid
-# define U_GID pw->pw_gid
+#ifdef LDA_CONTENTLENGTH
+# define CONTENTLENGTH	1
+#endif /* LDA_CONTENTLENGTH */
 
 #ifndef INADDRSZ
 # define INADDRSZ	4		/* size of an IPv4 address in bytes */
 #endif /* ! INADDRSZ */
 
+#ifdef MAILLOCK
+# include <maillock.h>
+#endif /* MAILLOCK */
+
 #ifndef MAILER_DAEMON
 # define MAILER_DAEMON	"MAILER-DAEMON"
 #endif /* ! MAILER_DAEMON */
@@ -246,17 +125,18 @@ off_t	HeaderLength;
 off_t	BodyLength;
 #endif /* CONTENTLENGTH */
 
-bool	EightBitMime = TRUE;		/* advertise 8BITMIME in LMTP */
+bool	EightBitMime = true;		/* advertise 8BITMIME in LMTP */
 char	ErrBuf[10240];			/* error buffer */
 int	ExitVal = EX_OK;		/* sysexits.h error value. */
-bool	HoldErrs = FALSE;		/* Hold errors in ErrBuf */
-bool	LMTPMode = FALSE;
-bool	BounceQuota = FALSE;		/* permanent error when over quota */
+bool	HoldErrs = false;		/* Hold errors in ErrBuf */
+bool	LMTPMode = false;
+bool	BounceQuota = false;		/* permanent error when over quota */
+char	*HomeMailFile = NULL;		/* store mail in homedir */
 
 void	deliver __P((int, char *));
 int	e_to_sys __P((int));
 void	notifybiff __P((char *));
-int	store __P((char *, int, bool *));
+int	store __P((char *, bool *));
 void	usage __P((void));
 int	lockmbox __P((char *));
 void	unlockmbox __P((void));
@@ -273,6 +153,8 @@ main(argc, argv)
 	int ch, fd;
 	uid_t uid;
 	char *from;
+	char *mbdbname = "pw";
+	int err;
 	extern char *optarg;
 	extern int optind;
 
@@ -291,21 +173,25 @@ main(argc, argv)
 # endif /* LOG_MAIL */
 
 	from = NULL;
-	while ((ch = getopt(argc, argv, "7bdf:r:l")) != -1)
+	while ((ch = getopt(argc, argv, "7bdD:f:h:r:l")) != -1)
 	{
 		switch(ch)
 		{
 		  case '7':		/* Do not advertise 8BITMIME */
-			EightBitMime = FALSE;
+			EightBitMime = false;
 			break;
 
 		  case 'b':		/* bounce mail when over quota. */
-			BounceQuota = TRUE;
+			BounceQuota = true;
 			break;
 
 		  case 'd':		/* Backward compatible. */
 			break;
 
+		  case 'D':		/* mailbox database type */
+			mbdbname = optarg;
+			break;
+
 		  case 'f':
 		  case 'r':		/* Backward compatible. */
 			if (from != NULL)
@@ -316,8 +202,18 @@ main(argc, argv)
 			from = optarg;
 			break;
 
+		  case 'h':
+			if (optarg != NULL || *optarg != '\0')
+				HomeMailFile = optarg;
+			else
+			{
+				mailerr(NULL, "-h: missing filename");
+				usage();
+			}
+			break;
+
 		  case 'l':
-			LMTPMode = TRUE;
+			LMTPMode = true;
 			break;
 
 		  case '?':
@@ -331,6 +227,19 @@ main(argc, argv)
 	/* initialize biff structures */
 	notifybiff(NULL);
 
+	err = sm_mbdb_initialize(mbdbname);
+	if (err != EX_OK)
+	{
+		char *errcode = "521";
+
+		if (err == EX_TEMPFAIL)
+			errcode = "421";
+
+		mailerr(errcode, "Can not open mailbox database %s: %s",
+			mbdbname, sm_strexit(err));
+		exit(err);
+	}
+
 	if (LMTPMode)
 	{
 		extern void dolmtp __P((void));
@@ -357,7 +266,6 @@ main(argc, argv)
 	*/
 
 	uid = getuid();
-
 	if (from == NULL && ((from = getlogin()) == NULL ||
 			     (pw = getpwnam(from)) == NULL ||
 			     pw->pw_uid != uid))
@@ -373,9 +281,9 @@ main(argc, argv)
 	**  at the expense of repeated failures and multiple deliveries.
 	*/
 
-	HoldErrs = TRUE;
-	fd = store(from, 0, NULL);
-	HoldErrs = FALSE;
+	HoldErrs = true;
+	fd = store(from, NULL);
+	HoldErrs = false;
 	if (fd < 0)
 	{
 		flush_error();
@@ -467,6 +375,8 @@ parseaddr(s, rcpt)
 		s = MAILER_DAEMON;
 
 	l = strlen(s) + 1;
+	if (l < 0)
+		return NULL;
 	p = malloc(l);
 	if (p == NULL)
 	{
@@ -474,7 +384,7 @@ parseaddr(s, rcpt)
 		exit(EX_TEMPFAIL);
 	}
 
-	(void) strlcpy(p, s, l);
+	(void) sm_strlcpy(p, s, l);
 	return p;
 }
 
@@ -482,9 +392,22 @@ char *
 process_recipient(addr)
 	char *addr;
 {
-	if (getpwnam(addr) == NULL)
+	SM_MBDB_T user;
+
+	switch (sm_mbdb_lookup(addr, &user))
+	{
+	  case EX_OK:
+		return NULL;
+
+	  case EX_NOUSER:
 		return "550 5.1.1 User unknown";
-	return NULL;
+
+	  case EX_TEMPFAIL:
+		return "451 4.3.0 User database failure; retry later";
+
+	  default:
+		return "550 5.3.0 User database failure";
+	}
 }
 
 #define RCPT_GROW	30
@@ -496,7 +419,7 @@ dolmtp()
 	char **rcpt_addr = NULL;
 	int rcpt_num = 0;
 	int rcpt_alloc = 0;
-	bool gotlhlo = FALSE;
+	bool gotlhlo = false;
 	char *err;
 	int msgfd;
 	char *p;
@@ -507,7 +430,7 @@ dolmtp()
 	memset(myhostname, '\0', sizeof myhostname);
 	(void) gethostname(myhostname, sizeof myhostname - 1);
 	if (myhostname[0] == '\0')
-		strlcpy(myhostname, "localhost", sizeof myhostname);
+		sm_strlcpy(myhostname, "localhost", sizeof myhostname);
 
 	printf("220 %s LMTP ready\r\n", myhostname);
 	for (;;)
@@ -525,18 +448,18 @@ dolmtp()
 		{
 		  case 'd':
 		  case 'D':
-			if (strcasecmp(buf, "data") == 0)
+			if (sm_strcasecmp(buf, "data") == 0)
 			{
-				bool inbody = FALSE;
+				bool inbody = false;
 
 				if (rcpt_num == 0)
 				{
 					mailerr("503 5.5.1", "No recipients");
 					continue;
 				}
-				HoldErrs = TRUE;
-				msgfd = store(return_path, rcpt_num, &inbody);
-				HoldErrs = FALSE;
+				HoldErrs = true;
+				msgfd = store(return_path, &inbody);
+				HoldErrs = false;
 				if (msgfd < 0 && !inbody)
 				{
 					flush_error();
@@ -566,7 +489,7 @@ dolmtp()
 
 		  case 'l':
 		  case 'L':
-			if (strncasecmp(buf, "lhlo ", 5) == 0)
+			if (sm_strncasecmp(buf, "lhlo ", 5) == 0)
 			{
 				/* check for duplicate per RFC 1651 4.2 */
 				if (gotlhlo)
@@ -575,7 +498,7 @@ dolmtp()
 					       myhostname);
 					continue;
 				}
-				gotlhlo = TRUE;
+				gotlhlo = true;
 				printf("250-%s\r\n", myhostname);
 				if (EightBitMime)
 					printf("250-8BITMIME\r\n");
@@ -589,7 +512,7 @@ dolmtp()
 
 		  case 'm':
 		  case 'M':
-			if (strncasecmp(buf, "mail ", 5) == 0)
+			if (sm_strncasecmp(buf, "mail ", 5) == 0)
 			{
 				if (return_path != NULL)
 				{
@@ -597,9 +520,9 @@ dolmtp()
 						"Nested MAIL command");
 					continue;
 				}
-				if (strncasecmp(buf+5, "from:", 5) != 0 ||
+				if (sm_strncasecmp(buf+5, "from:", 5) != 0 ||
 				    ((return_path = parseaddr(buf + 10,
-							      FALSE)) == NULL))
+							      false)) == NULL))
 				{
 					mailerr("501 5.5.4",
 						"Syntax error in parameters");
@@ -614,7 +537,7 @@ dolmtp()
 
 		  case 'n':
 		  case 'N':
-			if (strcasecmp(buf, "noop") == 0)
+			if (sm_strcasecmp(buf, "noop") == 0)
 			{
 				printf("250 2.0.0 Ok\r\n");
 				continue;
@@ -625,7 +548,7 @@ dolmtp()
 
 		  case 'q':
 		  case 'Q':
-			if (strcasecmp(buf, "quit") == 0)
+			if (sm_strcasecmp(buf, "quit") == 0)
 			{
 				printf("221 2.0.0 Bye\r\n");
 				exit(EX_OK);
@@ -636,7 +559,7 @@ dolmtp()
 
 		  case 'r':
 		  case 'R':
-			if (strncasecmp(buf, "rcpt ", 5) == 0)
+			if (sm_strncasecmp(buf, "rcpt ", 5) == 0)
 			{
 				if (return_path == NULL)
 				{
@@ -658,9 +581,9 @@ dolmtp()
 						exit(EX_TEMPFAIL);
 					}
 				}
-				if (strncasecmp(buf + 5, "to:", 3) != 0 ||
+				if (sm_strncasecmp(buf + 5, "to:", 3) != 0 ||
 				    ((rcpt_addr[rcpt_num] = parseaddr(buf + 8,
-								      TRUE)) == NULL))
+								      true)) == NULL))
 				{
 					mailerr("501 5.5.4",
 						"Syntax error in parameters");
@@ -676,7 +599,7 @@ dolmtp()
 				printf("250 2.1.5 Ok\r\n");
 				continue;
 			}
-			else if (strcasecmp(buf, "rset") == 0)
+			else if (sm_strcasecmp(buf, "rset") == 0)
 			{
 				printf("250 2.0.0 Ok\r\n");
 
@@ -694,7 +617,7 @@ rset:
 
 		  case 'v':
 		  case 'V':
-			if (strncasecmp(buf, "vrfy ", 5) == 0)
+			if (sm_strncasecmp(buf, "vrfy ", 5) == 0)
 			{
 				printf("252 2.3.3 Try RCPT to attempt delivery\r\n");
 				continue;
@@ -714,25 +637,24 @@ rset:
 }
 
 int
-store(from, lmtprcpts, inbody)
+store(from, inbody)
 	char *from;
-	int lmtprcpts;
 	bool *inbody;
 {
 	FILE *fp = NULL;
 	time_t tval;
-	bool eline;
-	bool fullline = TRUE;	/* current line is terminated */
+	bool eline;		/* previous line was empty */
+	bool fullline = true;	/* current line is terminated */
 	bool prevfl;		/* previous line was terminated */
 	char line[2048];
 	int fd;
 	char tmpbuf[sizeof _PATH_LOCTMP + 1];
 
 	if (inbody != NULL)
-		*inbody = FALSE;
+		*inbody = false;
 
 	(void) umask(0077);
-	(void) strlcpy(tmpbuf, _PATH_LOCTMP, sizeof tmpbuf);
+	(void) sm_strlcpy(tmpbuf, _PATH_LOCTMP, sizeof tmpbuf);
 	if ((fd = mkstemp(tmpbuf)) < 0 || (fp = fdopen(fd, "w+")) == NULL)
 	{
 		mailerr("451 4.3.0", "Unable to open temporary file");
@@ -746,7 +668,7 @@ store(from, lmtprcpts, inbody)
 		(void) fflush(stdout);
 	}
 	if (inbody != NULL)
-		*inbody = TRUE;
+		*inbody = true;
 
 	(void) time(&tval);
 	(void) fprintf(fp, "From %s %s", from, ctime(&tval));
@@ -757,7 +679,7 @@ store(from, lmtprcpts, inbody)
 #endif /* CONTENTLENGTH */
 
 	line[0] = '\0';
-	eline = TRUE;
+	eline = true;
 	while (fgets(line, sizeof(line), stdin) != (char *) NULL)
 	{
 		size_t line_len = 0;
@@ -779,7 +701,7 @@ store(from, lmtprcpts, inbody)
 		}
 
 		/* Check to see if we have the full line from fgets() */
-		fullline = FALSE;
+		fullline = false;
 		if (line_len > 0)
 		{
 			if (line[line_len - 1] == '\n')
@@ -791,7 +713,7 @@ store(from, lmtprcpts, inbody)
 					line[line_len - 1] = '\0';
 					line_len--;
 				}
-				fullline = TRUE;
+				fullline = true;
 			}
 			else if (line[line_len - 1] == '\r')
 			{
@@ -800,19 +722,19 @@ store(from, lmtprcpts, inbody)
 				if (peek == '\n')
 				{
 					line[line_len - 1] = '\n';
-					fullline = TRUE;
+					fullline = true;
 				}
 				else
 					(void) ungetc(peek, stdin);
 			}
 		}
 		else
-			fullline = TRUE;
+			fullline = true;
 
 #ifdef CONTENTLENGTH
 		if (prevfl && line[0] == '\n' && HeaderLength == 0)
 		{
-			eline = FALSE;
+			eline = false;
 			if (fp != NULL)
 				HeaderLength = ftell(fp);
 			if (HeaderLength <= 0)
@@ -827,7 +749,7 @@ store(from, lmtprcpts, inbody)
 		}
 #else /* CONTENTLENGTH */
 		if (prevfl && line[0] == '\n')
-			eline = TRUE;
+			eline = true;
 #endif /* CONTENTLENGTH */
 		else
 		{
@@ -835,12 +757,12 @@ store(from, lmtprcpts, inbody)
 			    fp != NULL &&
 			    !memcmp(line, "From ", 5))
 				(void) putc('>', fp);
-			eline = FALSE;
+			eline = false;
 #ifdef CONTENTLENGTH
 			/* discard existing "Content-Length:" headers */
 			if (prevfl && HeaderLength == 0 &&
 			    (line[0] == 'C' || line[0] == 'c') &&
-			    strncasecmp(line, ContentHdr, 15) == 0)
+			    sm_strncasecmp(line, ContentHdr, 15) == 0)
 			{
 				/*
 				**  be paranoid: clear the line
@@ -895,15 +817,10 @@ store(from, lmtprcpts, inbody)
 
 	if (HeaderLength > 0 && BodyLength >= 0)
 	{
-		extern char *quad_to_string();
-
-		if (sizeof BodyLength > sizeof(long))
-			snprintf(line, sizeof line, "%s\n",
-				 quad_to_string(BodyLength));
-		else
-			snprintf(line, sizeof line, "%ld\n",
-				 (long) BodyLength);
-		strlcpy(&ContentHdr[16], line, sizeof(ContentHdr) - 16);
+		(void) sm_snprintf(line, sizeof line, "%lld\n",
+				   (LONGLONG_T) BodyLength);
+		(void) sm_strlcpy(&ContentHdr[16], line,
+				  sizeof(ContentHdr) - 16);
 	}
 	else
 		BodyLength = -1;	/* Something is wrong here */
@@ -930,9 +847,9 @@ deliver(fd, name)
 {
 	struct stat fsb;
 	struct stat sb;
-	struct passwd *pw;
 	char path[MAXPATHLEN];
 	int mbfd = -1, nr = 0, nw, off;
+	int exitval;
 	char *p;
 	char *errcode;
 	off_t curoff;
@@ -941,26 +858,42 @@ deliver(fd, name)
 	int readamount;
 #endif /* CONTENTLENGTH */
 	char biffmsg[100], buf[8*1024];
-	extern char *quad_to_string();
-
+	SM_MBDB_T user;
 
 	/*
 	**  Disallow delivery to unknown names -- special mailboxes can be
 	**  handled in the sendmail aliases file.
 	*/
 
-	if ((pw = getpwnam(name)) == NULL)
+	exitval = sm_mbdb_lookup(name, &user);
+	switch (exitval)
 	{
-		if (ExitVal == EX_TEMPFAIL)
-			errcode = "451 4.3.0";
-		else
-		{
-			ExitVal = EX_UNAVAILABLE;
-			errcode = "550 5.1.1";
-		}
-		mailerr(errcode, "Unknown name: %s", name);
+	  case EX_OK:
+		break;
+
+	  case EX_NOUSER:
+		exitval = EX_UNAVAILABLE;
+		mailerr("550 5.1.1", "%s: User unknown", name);
+		break;
+
+	  case EX_TEMPFAIL:
+		mailerr("451 4.3.0", "%s: User database failure; retry later",
+			name);
+		break;
+
+	  default:
+		exitval = EX_UNAVAILABLE;
+		mailerr("550 5.3.0", "%s: User database failure", name);
+		break;
+	}
+
+	if (exitval != EX_OK)
+	{
+		if (ExitVal != EX_TEMPFAIL)
+			ExitVal = exitval;
 		return;
 	}
+
 	endpwent();
 
 	/*
@@ -982,7 +915,29 @@ deliver(fd, name)
 	}
 
 
-	(void) snprintf(path, sizeof(path), "%s/%s", _PATH_MAILDIR, name);
+	if (HomeMailFile == NULL)
+	{
+		if (sm_snprintf(path, sizeof(path), "%s/%s",
+				_PATH_MAILDIR, name) >= sizeof(path))
+		{
+			exitval = EX_UNAVAILABLE;
+			mailerr("550 5.1.1", "%s: Invalid mailbox path", name);
+			return;
+		}
+	}
+	else if (*user.mbdb_homedir == '\0')
+	{
+		exitval = EX_UNAVAILABLE;
+		mailerr("550 5.1.1", "%s: User missing home directory", name);
+		return;
+	}
+	else if (sm_snprintf(path, sizeof(path), "%s/%s",
+			     user.mbdb_homedir, HomeMailFile) >= sizeof(path))
+	{
+		exitval = EX_UNAVAILABLE;
+		mailerr("550 5.1.1", "%s: Invalid mailbox path", name);
+		return;
+	}
 
 
 	/*
@@ -1024,7 +979,7 @@ tryagain:
 			errcode = "551 5.3.0";
 
 		mailerr(errcode, "lockmailbox %s failed; error code %d %s",
-			p, off, errno > 0 ? errstring(errno) : "");
+			p, off, errno > 0 ? sm_errstring(errno) : "");
 		return;
 	}
 
@@ -1032,7 +987,7 @@ tryagain:
 	{
 		int save_errno;
 		int mode = S_IRUSR|S_IWUSR;
-		gid_t gid = U_GID;
+		gid_t gid = user.mbdb_gid;
 
 #ifdef MAILGID
 		(void) umask(0007);
@@ -1058,13 +1013,13 @@ tryagain:
 
 			/* open failed, don't try again */
 			mailerr("450 4.2.0", "%s: %s", path,
-				errstring(save_errno));
+				sm_errstring(save_errno));
 			goto err0;
 		}
-		else if (fchown(mbfd, U_UID, gid) < 0)
+		else if (fchown(mbfd, user.mbdb_uid, gid) < 0)
 		{
 			mailerr("451 4.3.0", "chown %u.%u: %s",
-				U_UID, gid, name);
+				user.mbdb_uid, gid, name);
 			goto err1;
 		}
 		else
@@ -1076,7 +1031,7 @@ tryagain:
 			**  is no longer valid; better safe than sorry.
 			*/
 
-			sb.st_uid = U_UID;
+			sb.st_uid = user.mbdb_uid;
 			(void) close(mbfd);
 			mbfd = -1;
 		}
@@ -1086,28 +1041,29 @@ tryagain:
 		mailerr("550 5.2.0", "%s: irregular file", path);
 		goto err0;
 	}
-	else if (sb.st_uid != U_UID)
+	else if (sb.st_uid != user.mbdb_uid)
 	{
 		ExitVal = EX_CANTCREAT;
 		mailerr("550 5.2.0", "%s: wrong ownership (%d)",
-			path, sb.st_uid);
+			path, (int) sb.st_uid);
 		goto err0;
 	}
 
 	/* change UID for quota checks */
-	if (setreuid(0, U_UID) < 0)
+	if (setreuid(0, user.mbdb_uid) < 0)
 	{
 		mailerr("450 4.2.0", "setreuid(0, %d): %s (r=%d, e=%d)",
-			U_UID, errstring(errno), getuid(), geteuid());
+			(int) user.mbdb_uid, sm_errstring(errno),
+			(int) getuid(), (int) geteuid());
 		goto err1;
 	}
 #ifdef DEBUG
-	fprintf(stderr, "new euid = %d\n", geteuid());
+	fprintf(stderr, "new euid = %d\n", (int) geteuid());
 #endif /* DEBUG */
 	mbfd = open(path, O_APPEND|O_WRONLY|EXTRA_MODE, 0);
 	if (mbfd < 0)
 	{
-		mailerr("450 4.2.0", "%s: %s", path, errstring(errno));
+		mailerr("450 4.2.0", "%s: %s", path, sm_errstring(errno));
 		goto err0;
 	}
 	else if (fstat(mbfd, &fsb) < 0 ||
@@ -1127,32 +1083,65 @@ tryagain:
 		goto err1;
 	}
 
+#if 0
+	/*
+	**  This code could be reused if we decide to add a
+	**  per-user quota field to the sm_mbdb interface.
+	*/
+
+	/*
+	**  Fail if the user has a quota specified, and delivery of this
+	**  message would exceed that quota.  We bounce such failures using
+	**  EX_UNAVAILABLE, unless there were internal problems, since
+	**  storing immense messages for later retries can cause queueing
+	**  issues.
+	*/
+
+	if (ui.quota > 0)
+	{
+		struct stat dsb;
+
+		if (fstat(fd, &dsb) < 0)
+		{
+			ExitVal = EX_TEMPFAIL;
+			mailerr("451 4.3.0",
+				"%s: fstat: can't stat temporary storage: %s",
+				ui.mailspool, sm_errstring(errno));
+			goto err1;
+		}
+
+		if (dsb.st_size + sb.st_size + 1 > ui.quota)
+		{
+			ExitVal = EX_UNAVAILABLE;
+			mailerr("551 5.2.2",
+				"%s: Mailbox full or quota exceeded",
+				ui.mailspool);
+			goto err1;
+		}
+	}
+#endif /* 0 */
 
 	/* Wait until we can get a lock on the file. */
 	if (flock(mbfd, LOCK_EX) < 0)
 	{
-		mailerr("450 4.2.0", "%s: %s", path, errstring(errno));
+		mailerr("450 4.2.0", "%s: %s", path, sm_errstring(errno));
 		goto err1;
 	}
 
 	/* Get the starting offset of the new message for biff. */
 	curoff = lseek(mbfd, (off_t) 0, SEEK_END);
-	if (sizeof curoff > sizeof(long))
-		(void) snprintf(biffmsg, sizeof(biffmsg), "%s@%s\n",
-				name, quad_to_string(curoff));
-	else
-		(void) snprintf(biffmsg, sizeof(biffmsg), "%s@%ld\n",
-				name, (long) curoff);
+	(void) sm_snprintf(biffmsg, sizeof(biffmsg), "%s@%lld\n",
+			   name, (LONGLONG_T) curoff);
 
 	/* Copy the message into the file. */
 	if (lseek(fd, (off_t) 0, SEEK_SET) == (off_t) -1)
 	{
 		mailerr("450 4.2.0", "Temporary file: %s",
-			errstring(errno));
+			sm_errstring(errno));
 		goto err1;
 	}
 #ifdef DEBUG
-	fprintf(stderr, "before writing: euid = %d\n", geteuid());
+	fprintf(stderr, "before writing: euid = %d\n", (int) geteuid());
 #endif /* DEBUG */
 #ifdef CONTENTLENGTH
 	headerbytes = (BodyLength >= 0) ? HeaderLength : -1 ;
@@ -1160,7 +1149,7 @@ tryagain:
 	{
 		if (headerbytes == 0)
 		{
-			snprintf(buf, sizeof buf, "%s", ContentHdr);
+			(void) sm_snprintf(buf, sizeof buf, "%s", ContentHdr);
 			nr = strlen(buf);
 			headerbytes = -1;
 			readamount = 0;
@@ -1190,7 +1179,7 @@ tryagain:
 					errcode = "552 5.2.2";
 #endif /* EDQUOT */
 				mailerr(errcode, "%s: %s",
-					path, errstring(errno));
+					path, sm_errstring(errno));
 				goto err3;
 			}
 		}
@@ -1198,18 +1187,18 @@ tryagain:
 	if (nr < 0)
 	{
 		mailerr("450 4.2.0", "Temporary file: %s",
-			errstring(errno));
+			sm_errstring(errno));
 		goto err3;
 	}
 
 	/* Flush to disk, don't wait for update. */
 	if (fsync(mbfd) < 0)
 	{
-		mailerr("450 4.2.0", "%s: %s", path, errstring(errno));
+		mailerr("450 4.2.0", "%s: %s", path, sm_errstring(errno));
 err3:
 		(void) setreuid(0, 0);
 #ifdef DEBUG
-		fprintf(stderr, "reset euid = %d\n", geteuid());
+		fprintf(stderr, "reset euid = %d\n", (int) geteuid());
 #endif /* DEBUG */
 		(void) ftruncate(mbfd, curoff);
 err1:		if (mbfd >= 0)
@@ -1226,7 +1215,7 @@ err0:		unlockmbox();
 		if (errno == EDQUOT && BounceQuota)
 			errcode = "552 5.2.2";
 #endif /* EDQUOT */
-		mailerr(errcode, "%s: %s", path, errstring(errno));
+		mailerr(errcode, "%s: %s", path, sm_errstring(errno));
 		(void) truncate(path, curoff);
 	}
 	else
@@ -1235,11 +1224,11 @@ err0:		unlockmbox();
 	if (setreuid(0, 0) < 0)
 	{
 		mailerr("450 4.2.0", "setreuid(0, 0): %s",
-			errstring(errno));
+			sm_errstring(errno));
 		goto err0;
 	}
 #ifdef DEBUG
-	fprintf(stderr, "reset euid = %d\n", geteuid());
+	fprintf(stderr, "reset euid = %d\n", (int) geteuid());
 #endif /* DEBUG */
 	unlockmbox();
 	if (LMTPMode)
@@ -1253,7 +1242,7 @@ err0:		unlockmbox();
 **  EPA 11/94.
 */
 
-bool	Locked = FALSE;
+bool	Locked = false;
 
 #ifdef MAILLOCK
 int
@@ -1266,7 +1255,7 @@ lockmbox(name)
 		return 0;
 	if ((r = maillock(name, 15)) == L_SUCCESS)
 	{
-		Locked = TRUE;
+		Locked = true;
 		return 0;
 	}
 	switch (r)
@@ -1293,7 +1282,7 @@ unlockmbox()
 {
 	if (Locked)
 		mailunlock();
-	Locked = FALSE;
+	Locked = false;
 }
 #else /* MAILLOCK */
 
@@ -1310,7 +1299,7 @@ lockmbox(path)
 		return 0;
 	if (strlen(path) + 6 > sizeof LockName)
 		return EX_SOFTWARE;
-	(void) snprintf(LockName, sizeof LockName, "%s.lock", path);
+	(void) sm_snprintf(LockName, sizeof LockName, "%s.lock", path);
 	(void) time(&start);
 	for (; ; sleep(5))
 	{
@@ -1330,7 +1319,7 @@ lockmbox(path)
 		{
 			/* defeat lock checking programs which test pid */
 			(void) write(fd, "0", 2);
-			Locked = TRUE;
+			Locked = true;
 			(void) close(fd);
 			return 0;
 		}
@@ -1360,7 +1349,7 @@ unlockmbox()
 	if (!Locked)
 		return;
 	(void) unlink(LockName);
-	Locked = FALSE;
+	Locked = false;
 }
 #endif /* MAILLOCK */
 
@@ -1368,7 +1357,7 @@ void
 notifybiff(msg)
 	char *msg;
 {
-	static bool initialized = FALSE;
+	static bool initialized = false;
 	static int f = -1;
 	struct hostent *hp;
 	struct servent *sp;
@@ -1377,7 +1366,7 @@ notifybiff(msg)
 
 	if (!initialized)
 	{
-		initialized = TRUE;
+		initialized = true;
 
 		/* Be silent if biff service not available. */
 		if ((sp = getservbyname("biff", "udp")) == NULL ||
@@ -1408,11 +1397,12 @@ void
 usage()
 {
 	ExitVal = EX_USAGE;
-	mailerr(NULL, "usage: mail.local [-7] [-b] [-l] [-f from] user ...");
+	mailerr(NULL, "usage: mail.local [-7] [-b] [-d] [-l] [-f from|-r from] [-h filename] user ...");
 	exit(ExitVal);
 }
 
 void
+/*VARARGS2*/
 #ifdef __STDC__
 mailerr(const char *hdr, const char *fmt, ...)
 #else /* __STDC__ */
@@ -1423,25 +1413,19 @@ mailerr(hdr, fmt, va_alist)
 #endif /* __STDC__ */
 {
 	size_t len = 0;
-	va_list ap;
+	SM_VA_LOCAL_DECL
 
 	(void) e_to_sys(errno);
 
-#ifdef __STDC__
-	va_start(ap, fmt);
-#else /* __STDC__ */
-	va_start(ap);
-#endif /* __STDC__ */
+	SM_VA_START(ap, fmt);
 
-	if (LMTPMode)
+	if (LMTPMode && hdr != NULL)
 	{
-		if (hdr != NULL)
-		{
-			snprintf(ErrBuf, sizeof ErrBuf, "%s ", hdr);
-			len = strlen(ErrBuf);
-		}
+		sm_snprintf(ErrBuf, sizeof ErrBuf, "%s ", hdr);
+		len = strlen(ErrBuf);
 	}
-	(void) vsnprintf(&ErrBuf[len], sizeof ErrBuf - len, fmt, ap);
+	(void) sm_vsnprintf(&ErrBuf[len], sizeof ErrBuf - len, fmt, ap);
+	SM_VA_END(ap);
 
 	if (!HoldErrs)
 		flush_error();
@@ -1630,7 +1614,7 @@ _gettemp(path, doopen)
 	extern int errno;
 	register char *start, *trv;
 	struct stat sbuf;
-	u_int pid;
+	unsigned int pid;
 
 	pid = getpid();
 	for (trv = path; *trv; ++trv);		/* extra X's get set to 0's */