v7.local.c revision 1590 
1/*
2 * Copyright (c) 1980, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by the University of
16 *	California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#ifndef lint
35static char sccsid[] = "@(#)v7.local.c	8.1 (Berkeley) 6/6/93";
36#endif /* not lint */
37
38/*
39 * Mail -- a mail program
40 *
41 * Version 7
42 *
43 * Local routines that are installation dependent.
44 */
45
46#include "rcv.h"
47#include <fcntl.h>
48#include "extern.h"
49
50/*
51 * Locate the user's mailbox file (ie, the place where new, unread
52 * mail is queued).
53 */
54void
55findmail(user, buf)
56	char *user, *buf;
57{
58	(void)sprintf(buf, "%s/%s", _PATH_MAILDIR, user);
59}
60
61/*
62 * Get rid of the queued mail.
63 */
64void
65demail()
66{
67
68	if (value("keep") != NOSTR || rm(mailname) < 0)
69		close(creat(mailname, 0600));
70}
71
72/*
73 * Discover user login name.
74 */
75char *
76username()
77{
78	char *np;
79
80	if ((np = getenv("USER")) != NOSTR)
81		return np;
82	return getname(getuid());
83}
84