Import of sendmail version 8.11.1 into vendor branch SENDMAIL with

release tag v8_11_1.

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

3 files changed, 253 insertions, 218 deletions

diff --git a/contrib/sendmail/mail.local/Makefile.m4 b/contrib/sendmail/mail.local/Makefile.m4
index f5344f8..516850f 100644
--- a/contrib/sendmail/mail.local/Makefile.m4
+++ b/contrib/sendmail/mail.local/Makefile.m4
@@ -1,10 +1,14 @@
 include(confBUILDTOOLSDIR`/M4/switch.m4')
 
+# sendmail dir
+SMSRCDIR=     ifdef(`confSMSRCDIR', `confSMSRCDIR', `${SRCDIR}/sendmail')
+PREPENDDEF(`confENVDEF', `confMAPDEF')
+PREPENDDEF(`confINCDIRS', `-I${SMSRCDIR} ')
+
 bldPRODUCT_START(`executable', `mail.local')
 define(`bldNO_INSTALL')
 define(`bldSOURCES', `mail.local.c ')
 bldPUSH_SMLIB(`smutil')
-PREPENDDEF(`confENVDEF', `confMAPDEF')
 bldPRODUCT_END
 
 bldPRODUCT_START(`manpage', `mail.local')
@@ -25,5 +29,3 @@ install-mail.local: mail.local
 divert
 
 bldFINISH
-
-
diff --git a/contrib/sendmail/mail.local/mail.local.8 b/contrib/sendmail/mail.local/mail.local.8
index 40f4641..e6e8ea3 100644
--- a/contrib/sendmail/mail.local/mail.local.8
+++ b/contrib/sendmail/mail.local/mail.local.8
@@ -1,4 +1,4 @@
-.\" Copyright (c) 1998, 1999 Sendmail, Inc. and its suppliers.
+.\" Copyright (c) 1998-2000 Sendmail, Inc. and its suppliers.
 .\"	 All rights reserved.
 .\" Copyright (c) 1990, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -8,15 +8,15 @@
 .\" the sendmail distribution.
 .\"
 .\"
-.\"	$Id: mail.local.8,v 8.14 1999/08/26 15:49:20 ca Exp $
+.\"	$Id: mail.local.8,v 8.14.14.3 2000/09/17 17:04:25 gshapiro Exp $
 .\"
-.TH MAIL.LOCAL 8 "$Date: 1999/08/26 15:49:20 $"
+.TH MAIL.LOCAL 8 "$Date: 2000/09/17 17:04:25 $"
 .SH NAME
 .B mail.local
 \- store mail in a mailbox
 .SH SYNOPSIS
 .B mail.local
-.RB [ \-7 "] [" \-d "] [" \-l "] [" \-f 
+.RB [ \-7 "] [" \-b "] [" \-d "] [" \-l "] [" \-f 
 .IR from "] " "user ..."
 .SH DESCRIPTION
 .B Mail.local
@@ -96,6 +96,12 @@ flock(2),
 getservbyname(3), 
 comsat(8), 
 sendmail(8)
+.SH WARNING
+.B mail.local
+escapes only "^From " lines that follow an empty line.
+If all lines starting with "From " should be escaped,
+use the 'E' flag for the local mailer in the
+sendmail.cf file.
 .SH HISTORY
 A superset of
 .B mail.local
diff --git a/contrib/sendmail/mail.local/mail.local.c b/contrib/sendmail/mail.local/mail.local.c
index 1b9562b..8178f7b 100644
--- a/contrib/sendmail/mail.local/mail.local.c
+++ b/contrib/sendmail/mail.local/mail.local.c
@@ -19,7 +19,7 @@ static char copyright[] =
 #endif /* ! lint */
 
 #ifndef lint
-static char id[] = "@(#)$Id: mail.local.c,v 8.143.4.13 2000/07/18 05:41:38 gshapiro Exp $";
+static char id[] = "@(#)$Id: mail.local.c,v 8.143.4.37 2000/09/22 00:49:10 doug Exp $";
 #endif /* ! lint */
 
 /*
@@ -32,215 +32,219 @@ static char id[] = "@(#)$Id: mail.local.c,v 8.143.4.13 2000/07/18 05:41:38 gshap
 */
 
 
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/stat.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>
-
-#ifndef __P
-# include "sendmail/cdefs.h"
-#endif /* ! __P */
-#include "sendmail/useful.h"
+/* additional mode for open() */
+# define EXTRA_MODE 0
 
-extern size_t	strlcpy __P((char *, const char *, size_t));
-extern size_t	strlcat __P((char *, const char *, size_t));
+# include <sys/types.h>
+# include <sys/param.h>
+# include <sys/stat.h>
+# include <sys/socket.h>
+# include <sys/file.h>
 
-#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 <netinet/in.h>
+# include <arpa/nameser.h>
 
-#include "sendmail/errstring.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>
 
+# ifndef __P
+#  include "sendmail/cdefs.h"
+# endif /* ! __P */
+# include "sendmail/useful.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 */
+extern size_t	strlcpy __P((char *, const char *, size_t));
+extern size_t	strlcat __P((char *, const char *, size_t));
 
-#ifdef __STDC__
-# include <stdarg.h>
-# define REALLOC(ptr, size)	realloc(ptr, size)
-#else /* __STDC__ */
-# include <varargs.h>
+# 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
-# define USE_VSYSLOG	0
-#endif /* defined(_AIX) */
-
-#if defined(__hpux)
-# define USE_LOCKF	1
-# define USE_SETRESUID	1
-# define USE_VSYSLOG	0
-#endif /* defined(__hpux) */
-
-#ifdef DGUX
-# define HASSNPRINTF	1
-# define USE_LOCKF	1
-# define USE_VSYSLOG	0
-#endif /* DGUX */
-
-#if defined(_CRAY)
-# if !defined(MAXPATHLEN)
-#  define MAXPATHLEN PATHSIZE
-# endif /* !defined(MAXPATHLEN) */
-# define USE_VSYSLOG   0
-#  define _PATH_MAILDIR	"/usr/spool/mail"
-#endif /* defined(_CRAY) */
-
-#if defined(ultrix)
-# define USE_VSYSLOG	0
-#endif /* defined(ultrix) */
-
-#if defined(__osf__)
-# define USE_VSYSLOG	0
-#endif /* defined(__osf__) */
-
-#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) */
+#  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
+#  define USE_VSYSLOG	0
+# endif /* defined(_AIX) */
+
+# if defined(__hpux)
+#  define USE_LOCKF	1
+#  define USE_SETRESUID	1
+#  define USE_VSYSLOG	0
+# endif /* defined(__hpux) */
+
+# ifdef DGUX
+#  define HASSNPRINTF	1
+#  define USE_LOCKF	1
+#  define USE_VSYSLOG	0
+# endif /* DGUX */
+
+# if defined(_CRAY)
+#  if !defined(MAXPATHLEN)
+#   define MAXPATHLEN PATHSIZE
+#  endif /* !defined(MAXPATHLEN) */
+#  define USE_VSYSLOG   0
+#   define _PATH_MAILDIR	"/usr/spool/mail"
+# endif /* defined(_CRAY) */
+
+# if defined(ultrix)
+#  define USE_VSYSLOG	0
+# endif /* defined(ultrix) */
+
+# if defined(__osf__)
+#  define USE_VSYSLOG	0
+# endif /* defined(__osf__) */
+
+# 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) */
 
 /*
  * If you don't have flock, you could try using lockf instead.
  */
 
-#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 USE_VSYSLOG
-# define USE_VSYSLOG	1
-#endif /* ! USE_VSYSLOG */
-
-#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
+# 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 USE_VSYSLOG
+#  define USE_VSYSLOG	1
+# endif /* ! USE_VSYSLOG */
+
+# 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) */
+#  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 >= 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) */
+# 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 2.6 */
-#endif /* HPUX11 */
+# 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 _AIX4 >= 40300
+#  define HASSNPRINTF	1		/* has snprintf starting in 4.3 */
+# endif /* _AIX4 >= 40300 */
 
-#if !HASSNPRINTF
+# if !HASSNPRINTF
 extern int	snprintf __P((char *, size_t, const char *, ...));
-# ifndef _CRAY
+#  ifndef _CRAY
 extern int	vsnprintf __P((char *, size_t, const char *, ...));
-# endif /* ! _CRAY */
-#endif /* !HASSNPRINTF */
+#  endif /* ! _CRAY */
+# endif /* !HASSNPRINTF */
 
 /*
 **  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.
 */
-#ifdef USE_SETEUID
-# define setreuid(r, e)		seteuid(e)
-#endif /* USE_SETEUID */
+# ifdef USE_SETEUID
+#  define setreuid(r, e)		seteuid(e)
+# endif /* USE_SETEUID */
 
 /*
 **  And of course on hpux you have setresuid()
 */
-#ifdef USE_SETRESUID
-# define setreuid(r, e)		setresuid(-1, e, -1)
-#endif /* USE_SETRESUID */
+# ifdef USE_SETRESUID
+#  define setreuid(r, e)		setresuid(-1, e, -1)
+# endif /* USE_SETRESUID */
 
-#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 _PATH_LOCTMP
+#  define _PATH_LOCTMP	"/tmp/local.XXXXXX"
+# endif /* ! _PATH_LOCTMP */
+#  ifndef _PATH_MAILDIR
+#   define _PATH_MAILDIR	"/var/spool/mail"
+#  endif /* ! _PATH_MAILDIR */
 
-#ifndef S_ISREG
-# define S_ISREG(mode)	(((mode) & _S_IFMT) == S_IFREG)
-#endif /* ! S_ISREG */
+# ifndef S_ISREG
+#  define S_ISREG(mode)	(((mode) & _S_IFMT) == S_IFREG)
+# endif /* ! S_ISREG */
 
-#ifdef MAILLOCK
-# include <maillock.h>
-#endif /* MAILLOCK */
+# ifdef MAILLOCK
+#  include <maillock.h>
+# endif /* MAILLOCK */
+
+# define U_UID pw->pw_uid
+# define U_GID pw->pw_gid
 
 #ifndef INADDRSZ
 # define INADDRSZ	4		/* size of an IPv4 address in bytes */
@@ -525,7 +529,8 @@ dolmtp(bouncequota)
 					p = strchr(rcpt_addr[i], '+');
 					if (p != NULL)
 						*p++ = '\0';
-					deliver(msgfd, rcpt_addr[i], bouncequota);
+					deliver(msgfd, rcpt_addr[i],
+						bouncequota);
 				}
 				(void) close(msgfd);
 				goto rset;
@@ -615,7 +620,7 @@ dolmtp(bouncequota)
 				{
 					rcpt_alloc += RCPT_GROW;
 					rcpt_addr = (char **)
-						REALLOC((char *)rcpt_addr,
+						REALLOC((char *) rcpt_addr,
 							rcpt_alloc *
 							sizeof(char **));
 					if (rcpt_addr == NULL)
@@ -798,7 +803,7 @@ store(from, lmtprcpts)
 		{
 			if (eline && line[0] == 'F' &&
 			    !memcmp(line, "From ", 5))
-				(void)putc('>', fp);
+				(void) putc('>', fp);
 			eline = FALSE;
 #ifdef CONTENTLENGTH
 			/* discard existing "Content-Length:" headers */
@@ -866,7 +871,8 @@ store(from, lmtprcpts)
 			snprintf(line, sizeof line, "%s\n",
 				 quad_to_string(BodyLength));
 		else
-			snprintf(line, sizeof line, "%ld\n", (long) BodyLength);
+			snprintf(line, sizeof line, "%ld\n",
+				 (long) BodyLength);
 		strlcpy(&ContentHdr[16], line, sizeof(ContentHdr) - 16);
 	}
 	else
@@ -927,7 +933,8 @@ deliver(fd, name, bouncequota)
 		if (LMTPMode)
 		{
 			if (ExitVal == EX_TEMPFAIL)
-				printf("451 4.3.0 cannot lookup name: %s\r\n", name);
+				printf("451 4.3.0 cannot lookup name: %s\r\n",
+				       name);
 			else
 				printf("550 5.1.1 unknown name: %s\r\n", name);
 		}
@@ -1017,7 +1024,7 @@ tryagain:
 	{
 		int save_errno;
 		int mode = S_IRUSR|S_IWUSR;
-		gid_t gid = pw->pw_gid;
+		gid_t gid = U_GID;
 
 #ifdef MAILGID
 		(void) umask(0007);
@@ -1025,8 +1032,8 @@ tryagain:
 		mode |= S_IRGRP|S_IWGRP;
 #endif /* MAILGID */
 
-		mbfd = open(path, O_APPEND|O_CREAT|O_EXCL|O_WRONLY, mode);
-
+		mbfd = open(path, O_APPEND|O_CREAT|O_EXCL|O_WRONLY|EXTRA_MODE,
+			    mode);
 		save_errno = errno;
 
 		if (lstat(path, &sb) < 0)
@@ -1036,36 +1043,61 @@ tryagain:
 				"%s: lstat: file changed after open", path);
 			goto err1;
 		}
-		else
-			sb.st_uid = pw->pw_uid;
 		if (mbfd == -1)
 		{
 			if (save_errno == EEXIST)
 				goto tryagain;
+
+			/* open failed, don't try again */
+			mailerr("450 4.2.0", "%s: %s", path,
+				errstring(save_errno));
+			goto err0;
 		}
-		else if (fchown(mbfd, pw->pw_uid, gid) < 0)
+		else if (fchown(mbfd, U_UID, gid) < 0)
 		{
 			mailerr("451 4.3.0", "chown %u.%u: %s",
-				pw->pw_uid, gid, name);
+				U_UID, gid, name);
 			goto err1;
 		}
+		else
+		{
+			/*
+			**  open() was successful, now close it so can
+			**  be opened as the right owner again.
+			**  Paranoia: reset mbdf since the file descriptor
+			**  is no longer valid; better safe than sorry.
+			*/
+
+			sb.st_uid = U_UID;
+			(void) close(mbfd);
+			mbfd = -1;
+		}
 	}
 	else if (sb.st_nlink != 1 || !S_ISREG(sb.st_mode))
 	{
 		mailerr("550 5.2.0", "%s: irregular file", path);
 		goto err0;
 	}
-	else if (sb.st_uid != pw->pw_uid)
+	else if (sb.st_uid != U_UID)
 	{
 		ExitVal = EX_CANTCREAT;
 		mailerr("550 5.2.0", "%s: wrong ownership (%d)",
 			path, sb.st_uid);
 		goto err0;
 	}
-	else
-		mbfd = open(path, O_APPEND|O_WRONLY, 0);
 
-	if (mbfd == -1)
+	/* change UID for quota checks */
+	if (setreuid(0, U_UID) < 0)
+	{
+		mailerr("450 4.2.0", "setreuid(0, %d): %s (r=%d, e=%d)",
+			U_UID, errstring(errno), getuid(), geteuid());
+		goto err1;
+	}
+#ifdef DEBUG
+	fprintf(stderr, "new euid = %d\n", 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));
 		goto err0;
@@ -1076,9 +1108,9 @@ tryagain:
 		 !S_ISREG(fsb.st_mode) ||
 		 sb.st_dev != fsb.st_dev ||
 		 sb.st_ino != fsb.st_ino ||
-#if HAS_ST_GEN && 0		/* AFS returns random values for st_gen */
+# if HAS_ST_GEN && 0		/* AFS returns random values for st_gen */
 		 sb.st_gen != fsb.st_gen ||
-#endif /* HAS_ST_GEN && 0 */
+# endif /* HAS_ST_GEN && 0 */
 		 sb.st_uid != fsb.st_uid)
 	{
 		ExitVal = EX_TEMPFAIL;
@@ -1098,11 +1130,11 @@ tryagain:
 	/* 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));
+		(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) snprintf(biffmsg, sizeof(biffmsg), "%s@%ld\n",
+				name, (long) curoff);
 
 	/* Copy the message into the file. */
 	if (lseek(fd, (off_t)0, SEEK_SET) == (off_t)-1)
@@ -1111,14 +1143,8 @@ tryagain:
 			errstring(errno));
 		goto err1;
 	}
-	if (setreuid(0, pw->pw_uid) < 0)
-	{
-		mailerr("450 4.2.0", "setreuid(0, %d): %s (r=%d, e=%d)",
-		     pw->pw_uid, errstring(errno), getuid(), geteuid());
-		goto err1;
-	}
 #ifdef DEBUG
-	fprintf(stderr, "new euid = %d\n", geteuid());
+	fprintf(stderr, "before writing: euid = %d\n", geteuid());
 #endif /* DEBUG */
 #ifdef CONTENTLENGTH
 	headerbytes = (BodyLength >= 0) ? HeaderLength : -1 ;
@@ -1187,7 +1213,8 @@ err3:
 		fprintf(stderr, "reset euid = %d\n", geteuid());
 #endif /* DEBUG */
 		(void) ftruncate(mbfd, curoff);
-err1:		(void) close(mbfd);
+err1:		if (mbfd >= 0)
+			(void) close(mbfd);
 err0:		unlockmbox();
 		return;
 	}
@@ -1234,7 +1261,7 @@ int
 lockmbox(name)
 	char *name;
 {
-	int r;
+	int r = 0;
 
 	if (Locked)
 		return 0;
@@ -1382,7 +1409,7 @@ void
 usage()
 {
 	ExitVal = EX_USAGE;
-	mailerr(NULL, "usage: mail.local [-l] [-f from] user ...");
+	mailerr(NULL, "usage: mail.local [-7] [-b] [-l] [-f from] user ...");
 	exit(ExitVal);
 }
 
@@ -1658,8 +1685,8 @@ _gettemp(path, doopen)
 	{
 		if (doopen)
 		{
-			if ((*doopen =
-			    open(path, O_CREAT|O_EXCL|O_RDWR, 0600)) >= 0)
+			if ((*doopen = open(path, O_CREAT|O_EXCL|O_RDWR,
+					    0600)) >= 0)
 				return(1);
 			if (errno != EEXIST)
 				return(0);