-#include <ctype.h>
-#include <stdio.h>
-#include <pwd.h>
-#include <utmp.h>
-#include <signal.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <setjmp.h>
-#include <sysexits.h>
-
-static char SccsId[] = "@(#)mail.local.c 4.7 %G%";
-
-#define DELIVERMAIL "/etc/delivermail"
-
-
-/*copylet flags */
- /*remote mail, add rmtmsg */
-#define REMOTE 1
- /* zap header and trailing empty line */
-#define ZAP 3
-#define ORDINARY 2
-#define FORWARD 4
-#define LSIZE 256
-#define MAXLET 300 /* maximum number of letters */
-#define MAILMODE (~0644) /* mode of created mail */
-
-char line[LSIZE];
-char resp[LSIZE];
-struct let {
- long adr;
- char change;
-} let[MAXLET];
-int nlet = 0;
-char lfil[50];
-long iop, time();
-char *getenv();
-char *index();
-char lettmp[] = "/tmp/maXXXXX";
-char maildir[] = "/usr/spool/mail/";
-char mailfile[] = "/usr/spool/mail/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
-char dead[] = "dead.letter";
-char *netname = "vax";
-char forwmsg[] = " forwarded\n";
-FILE *tmpf;
-FILE *malf;
-char *my_name;
-char *getlogin();
-struct passwd *getpwuid();
-int error;
-int changed;
-int forward;
-char from[] = "From ";
-long ftell();
-int delete();
-char *ctime();
-int flgf;
-int flgp;
-int delflg = 1;
-int hseqno;
-jmp_buf sjbuf;
-int rmail;
+/*-
+ * Copyright (c) 1990, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 THE REGENTS 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 DAMAGE.
+ */