path: root/debian/patches/41_rmail.diff

Index: postfix-dev/Makefile.in
===================================================================
--- postfix-dev.orig/Makefile.in	2019-03-01 11:47:11.561748990 -0500
+++ postfix-dev/Makefile.in	2019-03-01 11:47:11.553748990 -0500
@@ -8,6 +8,7 @@
 	src/pipe src/showq src/postalias src/postcat src/postconf src/postdrop \
 	src/postkick src/postlock src/postlog src/postmap src/postqueue \
 	src/postsuper src/qmqpd src/spawn src/flush src/verify \
+	rmail \
 	src/virtual src/proxymap src/anvil src/scache src/discard src/tlsmgr \
 	src/postmulti src/postscreen src/dnsblog src/tlsproxy \
 	src/posttls-finger src/postlogd
Index: postfix-dev/conf/master.cf
===================================================================
--- postfix-dev.orig/conf/master.cf	2019-03-01 11:47:11.561748990 -0500
+++ postfix-dev/conf/master.cf	2019-03-01 11:47:11.553748990 -0500
@@ -110,10 +110,8 @@
 #
 # See the Postfix UUCP_README file for configuration details.
 #
-#uucp      unix  -       n       n       -       -       pipe
-#  flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient)
-#
-# ====================================================================
+uucp      unix  -       n       n       -       -       pipe
+  flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient)
 #
 # Other external delivery methods.
 #
Index: postfix-dev/rmail/LICENSE
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ postfix-dev/rmail/LICENSE	2019-03-01 11:47:11.553748990 -0500
@@ -0,0 +1,79 @@
+			     SENDMAIL LICENSE
+
+The following license terms and conditions apply, unless a different
+license is obtained from Sendmail, Inc., 6425 Christie Ave, Fourth Floor,
+Emeryville, CA 94608, or by electronic mail at license@sendmail.com.
+
+License Terms:
+
+Use, Modification and Redistribution (including distribution of any
+modified or derived work) in source and binary forms is permitted only if
+each of the following conditions is met:
+
+1. Redistributions qualify as "freeware" or "Open Source Software" under
+   one of the following terms:
+
+   (a) Redistributions are made at no charge beyond the reasonable cost of
+       materials and delivery.
+
+   (b) Redistributions are accompanied by a copy of the Source Code or by an
+       irrevocable offer to provide a copy of the Source Code for up to three
+       years at the cost of materials and delivery.  Such redistributions
+       must allow further use, modification, and redistribution of the Source
+       Code under substantially the same terms as this license.  For the
+       purposes of redistribution "Source Code" means the complete compilable
+       and linkable source code of sendmail including all modifications.
+
+2. Redistributions of source code must retain the copyright notices as they
+   appear in each source code file, these license terms, and the
+   disclaimer/limitation of liability set forth as paragraph 6 below.
+
+3. Redistributions in binary form must reproduce the Copyright Notice,
+   these license terms, and the disclaimer/limitation of liability set
+   forth as paragraph 6 below, in the documentation and/or other materials
+   provided with the distribution.  For the purposes of binary distribution
+   the "Copyright Notice" refers to the following language:
+   "Copyright (c) 1998-2000 Sendmail, Inc.  All rights reserved."
+
+4. Neither the name of Sendmail, Inc. nor the University of California nor
+   the names of their contributors may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.  The name "sendmail" is a trademark of Sendmail, Inc.
+
+5. All redistributions must comply with the conditions imposed by the
+   University of California on certain embedded code, whose copyright
+   notice and conditions for redistribution are as follows:
+
+   (a) Copyright (c) 1988, 1993 The Regents of the University of
+       California.  All rights reserved.
+
+   (b) Redistribution and use in source and binary forms, with or without
+       modification, are permitted provided that the following conditions
+       are met:
+
+      (i)   Redistributions of source code must retain the above copyright
+            notice, this list of conditions and the following disclaimer.
+
+      (ii)  Redistributions in binary form must reproduce the above
+            copyright notice, this list of conditions and the following
+            disclaimer in the documentation and/or other materials provided
+            with the distribution.
+
+      (iii) Neither the name of the University nor the names of its
+            contributors may be used to endorse or promote products derived
+            from this software without specific prior written permission.
+
+6. Disclaimer/Limitation of Liability: THIS SOFTWARE IS PROVIDED BY
+   SENDMAIL, INC. AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
+   WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+   MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+   NO EVENT SHALL SENDMAIL, INC., THE REGENTS OF THE UNIVERSITY OF
+   CALIFORNIA OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+   INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+   NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+   USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+   ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+   THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+$Revision: 1.1.2.1 $, Last updated $Date: 2004/12/28 05:34:15 $
Index: postfix-dev/rmail/Makefile.in
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ postfix-dev/rmail/Makefile.in	2019-03-01 11:47:11.553748990 -0500
@@ -0,0 +1,56 @@
+SHELL	= /bin/sh
+SRCS	= rmail.c
+OBJS	= rmail.o
+HDRS	=
+TESTSRC	=
+WARN	= -W -Wformat -Wimplicit -Wmissing-prototypes \
+	-Wparentheses -Wstrict-prototypes -Wswitch -Wuninitialized \
+	-Wunused
+DEFS	= -I. -I$(INC_DIR) -D$(SYSTYPE) -DHASSNPRINTF -DHASSTRERROR
+CFLAGS	= $(DEBUG) $(OPT) $(DEFS)
+TESTPROG=
+PROG	= rmail
+INC_DIR =
+LIBS	=
+
+.c.o:;	$(CC) $(CFLAGS) -c $*.c
+
+$(PROG): $(OBJS) $(LIBS)
+	$(CC) $(CFLAGS) -o $@ $(OBJS) $(LIBS) $(SYSLIBS)
+
+Makefile: Makefile.in
+	cat ../conf/makedefs.out $? >$@
+
+test:	$(TESTPROG)
+
+update: ../bin/$(PROG)
+
+../bin/$(PROG): $(PROG)
+	cp $(PROG) ../bin
+
+printfck: $(OBJS) $(PROG)
+	rm -rf printfck
+	mkdir printfck
+	sed '1,/^# do not edit/!d' Makefile >printfck/Makefile
+	set -e; for i in *.c; do printfck -f .printfck $$i >printfck/$$i; done
+	cd printfck; make "INC_DIR=../../include" `cd ..; ls *.o`
+
+lint:
+	lint $(DEFS) $(SRCS) $(LINTFIX)
+
+clean:
+	rm -f *.o *core $(PROG) $(TESTPROG) junk
+	rm -rf printfck
+
+tidy:	clean
+
+depend: $(MAKES)
+	(sed '1,/^# do not edit/!d' Makefile.in; \
+	set -e; for i in [a-z][a-z0-9]*.c; do \
+	    $(CC) -E $(DEFS) $(INCL) $$i | sed -n -e '/^# *1 *"\([^"]*\)".*/{' \
+	    -e 's//'`echo $$i|sed 's/c$$/o/'`': \1/' -e 'p' -e '}'; \
+	done) | grep -v '[.][o][:][ ][/]' >$$$$ && mv $$$$ Makefile.in
+	@make -f Makefile.in Makefile
+
+# do not edit below this line - it is generated by 'make depend'
+rmail.o: rmail.c
Index: postfix-dev/rmail/rmail.8
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ postfix-dev/rmail/rmail.8	2019-03-01 11:47:11.553748990 -0500
@@ -0,0 +1,49 @@
+.\" Copyright (c) 1998, 1999 Sendmail, Inc. and its suppliers.
+.\"	 All rights reserved.
+.\" Copyright (c) 1983, 1990
+.\"	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: 10rmail.dpatch,v 1.1.2.1 2004/12/28 05:34:15 lamont Exp $
+.\"
+.TH RMAIL 8 "$Date: 2004/12/28 05:34:15 $"
+.SH NAME
+.B rmail
+\- handle remote mail received via uucp
+.SH SYNOPSIS
+.B rmail
+.I
+user ...
+.SH DESCRIPTION
+.B Rmail
+interprets incoming mail received via
+uucp(1),
+collapsing ``From'' lines in the form generated
+by
+mail.local(8)
+into a single line of the form ``return-path!sender'',
+and passing the processed mail on to
+sendmail(8).
+.PP
+.B Rmail
+is explicitly designed for use with
+uucp
+and
+sendmail.
+.SH SEE ALSO
+uucp(1),
+mail.local(8),
+sendmail(8)
+.SH HISTORY
+The
+.B rmail
+program appeared in
+4.2BSD.
+.SH BUGS
+.B Rmail
+should not reside in
+/bin.
Index: postfix-dev/rmail/rmail.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ postfix-dev/rmail/rmail.c	2019-03-01 11:47:11.553748990 -0500
@@ -0,0 +1,475 @@
+/*
+ * Copyright (c) 1998-2000 Sendmail, Inc. and its suppliers.
+ *	All rights reserved.
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * By using this file, you agree to the terms and conditions set
+ * forth in the LICENSE file which can be found at the top level of
+ * the sendmail distribution.
+ *
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1998-2000 Sendmail, Inc. and its suppliers.\n\
+	All rights reserved.\n\
+     Copyright (c) 1988, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* ! lint */
+
+#ifndef lint
+static char id[] = "@(#)$Id: 10rmail.dpatch,v 1.1.2.1 2004/12/28 05:34:15 lamont Exp $";
+#endif /* ! lint */
+
+/*
+ * RMAIL -- UUCP mail server.
+ *
+ * This program reads the >From ... remote from ... lines that UUCP is so
+ * fond of and turns them into something reasonable.  It then execs sendmail
+ * with various options built from these lines.
+ *
+ * The expected syntax is:
+ *
+ *	 <user> := [-a-z0-9]+
+ *	 <date> := ctime format
+ *	 <site> := [-a-z0-9!]+
+ * <blank line> := "^\n$"
+ *	 <from> := "From" <space> <user> <space> <date>
+ *		  [<space> "remote from" <space> <site>]
+ *    <forward> := ">" <from>
+ *	    msg := <from> <forward>* <blank-line> <body>
+ *
+ * The output of rmail(8) compresses the <forward> lines into a single
+ * from path.
+ *
+ * The err(3) routine is included here deliberately to make this code
+ * a bit more portable.
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+#include <ctype.h>
+#include <fcntl.h>
+#ifdef BSD4_4
+# define FORK vfork
+# include <paths.h>
+#else /* BSD4_4 */
+# define FORK fork
+# ifndef _PATH_SENDMAIL
+#  define _PATH_SENDMAIL "/usr/lib/sendmail"
+# endif /* ! _PATH_SENDMAIL */
+#endif /* BSD4_4 */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#ifdef EX_OK
+# undef EX_OK		/* unistd.h may have another use for this */
+#endif /* EX_OK */
+#include <sysexits.h>
+
+#ifndef MAX
+# define MAX(a, b)	((a) < (b) ? (b) : (a))
+#endif /* ! MAX */
+
+#ifndef __P
+# ifdef __STDC__
+#  define __P(protos)	protos
+# else /* __STDC__ */
+#  define __P(protos)	()
+#  define const
+# endif /* __STDC__ */
+#endif /* ! __P */
+
+#ifndef STDIN_FILENO
+# define STDIN_FILENO	0
+#endif /* ! STDIN_FILENO */
+
+#if defined(BSD4_4) || defined(linux) || SOLARIS >= 20600 || (SOLARIS < 10000 && SOLARIS >= 206) || _AIX4 >= 40300 || defined(HPUX11)
+# define HASSNPRINTF	1
+#endif /* defined(BSD4_4) || defined(linux) || SOLARIS >= 20600 || (SOLARIS < 10000 && SOLARIS >= 206) || _AIX4 >= 40300 || defined(HPUX11) */
+
+#if defined(sun) && !defined(BSD) && !defined(SOLARIS) && !defined(__svr4__) && !defined(__SVR4)
+# define memmove(d, s, l)	(bcopy((s), (d), (l)))
+#endif /* defined(sun) && !defined(BSD) && !defined(SOLARIS) && !defined(__svr4__) && !defined(__SVR4) */
+
+#if !HASSNPRINTF
+extern int	snprintf __P((char *, size_t, const char *, ...));
+#endif /* !HASSNPRINTF */
+
+#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) */
+
+#if defined(SUNOS403) || defined(NeXT) || (defined(MACH) && defined(i386) && !defined(__GNU__)) || defined(oldBSD43) || defined(MORE_BSD) || defined(umipsbsd) || defined(ALTOS_SYSTEM_V) || defined(RISCOS) || defined(_AUX_SOURCE) || defined(UMAXV) || defined(titan) || defined(UNIXWARE) || defined(sony_news) || defined(luna) || defined(nec_ews_svr4) || defined(_nec_ews_svr4) || defined(__MAXION__)
+# undef WIFEXITED
+# undef WEXITSTATUS
+# define WIFEXITED(st)		(((st) & 0377) == 0)
+# define WEXITSTATUS(st)	(((st) >> 8) & 0377)
+#endif /* defined(SUNOS403) || defined(NeXT) || (defined(MACH) && defined(i386) && !defined(__GNU__)) || defined(oldBSD43) || defined(MORE_BSD) || defined(umipsbsd) || defined(ALTOS_SYSTEM_V) || defined(RISCOS) || defined(_AUX_SOURCE) || defined(UMAXV) || defined(titan) || defined(UNIXWARE) || defined(sony_news) || defined(luna) || defined(nec_ews_svr4) || defined(_nec_ews_svr4) || defined(__MAXION__) */
+
+#include <errno.h>
+
+static void err __P((int, const char *, ...));
+static void usage __P((void));
+static char *xalloc __P((int));
+
+#define newstr(s)	strcpy(xalloc(strlen(s) + 1), s)
+
+static char *
+xalloc(sz)
+	register int sz;
+{
+	register char *p;
+
+	/* some systems can't handle size zero mallocs */
+	if (sz <= 0)
+		sz = 1;
+
+	p = malloc((unsigned) sz);
+	if (p == NULL)
+		err(EX_TEMPFAIL, "out of memory");
+	return (p);
+}
+
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	int ch, debug, i, pdes[2], pid, status;
+	size_t fplen = 0, fptlen = 0, len;
+	off_t offset;
+	FILE *fp;
+	char *addrp = NULL, *domain, *p, *t;
+	char *from_path, *from_sys, *from_user;
+	char **args, buf[2048], lbuf[2048];
+	struct stat sb;
+	extern char *optarg;
+	extern int optind;
+
+	debug = 0;
+	domain = "UUCP";		/* Default "domain". */
+	while ((ch = getopt(argc, argv, "D:T")) != -1)
+	{
+		switch (ch)
+		{
+		  case 'T':
+			debug = 1;
+			break;
+
+		  case 'D':
+			domain = optarg;
+			break;
+
+		  case '?':
+		  default:
+			usage();
+		}
+	}
+
+	argc -= optind;
+	argv += optind;
+
+	if (argc < 1)
+		usage();
+
+	from_path = from_sys = from_user = NULL;
+	for (offset = 0; ; )
+	{
+		/* Get and nul-terminate the line. */
+		if (fgets(lbuf, sizeof(lbuf), stdin) == NULL)
+			exit(EX_DATAERR);
+		if ((p = strchr(lbuf, '\n')) == NULL)
+			err(EX_DATAERR, "line too long");
+		*p = '\0';
+
+		/* Parse lines until reach a non-"From" line. */
+		if (!strncmp(lbuf, "From ", 5))
+			addrp = lbuf + 5;
+		else if (!strncmp(lbuf, ">From ", 6))
+			addrp = lbuf + 6;
+		else if (offset == 0)
+			err(EX_DATAERR,
+			    "missing or empty From line: %s", lbuf);
+		else
+		{
+			*p = '\n';
+			break;
+		}
+
+		if (addrp == NULL || *addrp == '\0')
+			err(EX_DATAERR, "corrupted From line: %s", lbuf);
+
+		/* Use the "remote from" if it exists. */
+		for (p = addrp; (p = strchr(p + 1, 'r')) != NULL; )
+		{
+			if (!strncmp(p, "remote from ", 12))
+			{
+				for (t = p += 12; *t != '\0'; ++t)
+				{
+					if (isascii(*t) && isspace(*t))
+						break;
+				}
+				*t = '\0';
+				if (debug)
+					fprintf(stderr, "remote from: %s\n", p);
+				break;
+			}
+		}
+
+		/* Else use the string up to the last bang. */
+		if (p == NULL)
+		{
+			if (*addrp == '!')
+				err(EX_DATAERR, "bang starts address: %s",
+				    addrp);
+			else if ((t = strrchr(addrp, '!')) != NULL)
+			{
+				*t = '\0';
+				p = addrp;
+				addrp = t + 1;
+				if (*addrp == '\0')
+					err(EX_DATAERR,
+					    "corrupted From line: %s", lbuf);
+				if (debug)
+					fprintf(stderr, "bang: %s\n", p);
+			}
+		}
+
+		/* 'p' now points to any system string from this line. */
+		if (p != NULL)
+		{
+			/* Nul terminate it as necessary. */
+			for (t = p; *t != '\0'; ++t)
+			{
+				if (isascii(*t) && isspace(*t))
+					break;
+			}
+			*t = '\0';
+
+			/* If the first system, copy to the from_sys string. */
+			if (from_sys == NULL)
+			{
+				from_sys = newstr(p);
+				if (debug)
+					fprintf(stderr, "from_sys: %s\n",
+						from_sys);
+			}
+
+			/* Concatenate to the path string. */
+			len = t - p;
+			if (from_path == NULL)
+			{
+				fplen = 0;
+				if ((from_path = malloc(fptlen = 256)) == NULL)
+					err(EX_TEMPFAIL, NULL);
+			}
+			if (fplen + len + 2 > fptlen)
+			{
+				fptlen += MAX(fplen + len + 2, 256);
+				if ((from_path = realloc(from_path,
+							 fptlen)) == NULL)
+					err(EX_TEMPFAIL, NULL);
+			}
+			memmove(from_path + fplen, p, len);
+			fplen += len;
+			from_path[fplen++] = '!';
+			from_path[fplen] = '\0';
+		}
+
+		/* Save off from user's address; the last one wins. */
+		for (p = addrp; *p != '\0'; ++p)
+		{
+			if (isascii(*p) && isspace(*p))
+				break;
+		}
+		*p = '\0';
+		if (*addrp == '\0')
+			addrp = "<>";
+		if (from_user != NULL)
+			free(from_user);
+		from_user = newstr(addrp);
+
+		if (debug)
+		{
+			if (from_path != NULL)
+				fprintf(stderr, "from_path: %s\n", from_path);
+			fprintf(stderr, "from_user: %s\n", from_user);
+		}
+
+		if (offset != -1)
+			offset = (off_t)ftell(stdin);
+	}
+
+
+	/* Allocate args (with room for sendmail args as well as recipients */
+	args = (char **)xalloc(sizeof(*args) * (10 + argc));
+
+	i = 0;
+	args[i++] = _PATH_SENDMAIL;	/* Build sendmail's argument list. */
+	args[i++] = "-G";		/* relay submission */
+	args[i++] = "-oee";		/* No errors, just status. */
+	args[i++] = "-odq";		/* Queue it, don't try to deliver. */
+	args[i++] = "-oi";		/* Ignore '.' on a line by itself. */
+
+	/* set from system and protocol used */
+	if (from_sys == NULL)
+		snprintf(buf, sizeof(buf), "-p%s", domain);
+	else if (strchr(from_sys, '.') == NULL)
+		snprintf(buf, sizeof(buf), "-p%s:%s.%s",
+			domain, from_sys, domain);
+	else
+		snprintf(buf, sizeof(buf), "-p%s:%s", domain, from_sys);
+	args[i++] = newstr(buf);
+
+	/* Set name of ``from'' person. */
+	snprintf(buf, sizeof(buf), "-f%s%s",
+		 from_path ? from_path : "", from_user);
+	args[i++] = newstr(buf);
+
+	/*
+	**  Don't copy arguments beginning with - as they will be
+	**  passed to sendmail and could be interpreted as flags.
+	**  To prevent confusion of sendmail wrap < and > around
+	**  the address (helps to pass addrs like @gw1,@gw2:aa@bb)
+	*/
+
+	while (*argv != NULL)
+	{
+		if (**argv == '-')
+			err(EX_USAGE, "dash precedes argument: %s", *argv);
+
+		if (strchr(*argv, ',') == NULL || strchr(*argv, '<') != NULL)
+			args[i++] = *argv;
+		else
+		{
+			len = strlen(*argv) + 3;
+			if ((args[i] = malloc(len)) == NULL)
+				err(EX_TEMPFAIL, "Cannot malloc");
+			snprintf(args[i++], len, "<%s>", *argv);
+		}
+		argv++;
+		argc--;
+
+		/* Paranoia check, argc used for args[] bound */
+		if (argc < 0)
+			err(EX_SOFTWARE, "Argument count mismatch");
+	}
+	args[i] = NULL;
+
+	if (debug)
+	{
+		fprintf(stderr, "Sendmail arguments:\n");
+		for (i = 0; args[i] != NULL; i++)
+			fprintf(stderr, "\t%s\n", args[i]);
+	}
+
+	/*
+	**  If called with a regular file as standard input, seek to the right
+	**  position in the file and just exec sendmail.  Could probably skip
+	**  skip the stat, but it's not unreasonable to believe that a failed
+	**  seek will cause future reads to fail.
+	*/
+
+	if (!fstat(STDIN_FILENO, &sb) && S_ISREG(sb.st_mode))
+	{
+		if (lseek(STDIN_FILENO, offset, SEEK_SET) != offset)
+			err(EX_TEMPFAIL, "stdin seek");
+		(void) execv(_PATH_SENDMAIL, args);
+		err(EX_OSERR, "%s", _PATH_SENDMAIL);
+	}
+
+	if (pipe(pdes) < 0)
+		err(EX_OSERR, NULL);
+
+	switch (pid = FORK())
+	{
+	  case -1:				/* Err. */
+		err(EX_OSERR, NULL);
+		/* NOTREACHED */
+
+	  case 0:				/* Child. */
+		if (pdes[0] != STDIN_FILENO)
+		{
+			(void) dup2(pdes[0], STDIN_FILENO);
+			(void) close(pdes[0]);
+		}
+		(void) close(pdes[1]);
+		(void) execv(_PATH_SENDMAIL, args);
+		_exit(127);
+		/* NOTREACHED */
+	}
+
+	if ((fp = fdopen(pdes[1], "w")) == NULL)
+		err(EX_OSERR, NULL);
+	(void) close(pdes[0]);
+
+	/* Copy the file down the pipe. */
+	do
+	{
+		(void) fprintf(fp, "%s", lbuf);
+	} while (fgets(lbuf, sizeof(lbuf), stdin) != NULL);
+
+	if (ferror(stdin))
+		err(EX_TEMPFAIL, "stdin: %s", strerror(errno));
+
+	if (fclose(fp))
+		err(EX_OSERR, NULL);
+
+	if ((waitpid(pid, &status, 0)) == -1)
+		err(EX_OSERR, "%s", _PATH_SENDMAIL);
+
+	if (!WIFEXITED(status))
+		err(EX_OSERR, "%s: did not terminate normally", _PATH_SENDMAIL);
+
+	if (WEXITSTATUS(status))
+		err(status, "%s: terminated with %d (non-zero) status",
+		    _PATH_SENDMAIL, WEXITSTATUS(status));
+	exit(EX_OK);
+	/* NOTREACHED */
+	return EX_OK;
+}
+
+static void
+usage()
+{
+	(void) fprintf(stderr, "usage: rmail [-T] [-D domain] user ...\n");
+	exit(EX_USAGE);
+}
+
+#ifdef __STDC__
+# include <stdarg.h>
+#else /* __STDC__ */
+# include <varargs.h>
+#endif /* __STDC__ */
+
+static void
+#ifdef __STDC__
+err(int eval, const char *fmt, ...)
+#else /* __STDC__ */
+err(eval, fmt, va_alist)
+	int eval;
+	const char *fmt;
+	va_dcl
+#endif /* __STDC__ */
+{
+	va_list ap;
+#ifdef __STDC__
+	va_start(ap, fmt);
+#else /* __STDC__ */
+	va_start(ap);
+#endif /* __STDC__ */
+	(void) fprintf(stderr, "rmail: ");
+	(void) vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	(void) fprintf(stderr, "\n");
+	exit(eval);
+}