1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 1998 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
28 /* All Rights Reserved */
29
30
31 /*
32 * University Copyright- Copyright (c) 1982, 1986, 1988
33 * The Regents of the University of California
34 * All Rights Reserved
35 *
36 * University Acknowledgment- Portions of this document are derived from
37 * software developed by the University of California, Berkeley, and its
38 * contributors.
39 */
40
41 #pragma ident "%Z%%M% %I% %E% SMI"
42
43 /*
44 * mailx -- a modified version of a University of California at Berkeley
45 * mail program
46 *
47 * Local routines that are installation dependent.
48 */
49
50 #include "rcv.h"
51
52 static int ismailbox(char *file);
53
54 /*
55 * Locate the user's mailbox file (ie, the place where new, unread
56 * mail is queued). In SVr4 UNIX, it is in /var/mail/name.
57 * In preSVr4 UNIX, it is in either /usr/mail/name or /usr/spool/mail/name.
58 */
59 void
findmail(char * name)60 findmail(char *name)
61 {
62 register char *cp;
63
64 if (name != NOSTR) {
65 copy(name, copy(maildir, mailname));
66 issysmbox = 1; /* it's a system mailbox */
67 } else if ((cp = getenv("MAIL")) != NULL) {
68 /* if $MAIL is set, use it */
69 nstrcpy(mailname, PATHSIZE, cp);
70 issysmbox = ismailbox(mailname);
71 /* XXX - should warn that there's no locking? */
72 } else {
73 copy(myname, copy(maildir, mailname));
74 issysmbox = 1;
75 }
76 if (issysmbox)
77 lockname = strrchr(mailname, '/') + 1;
78 }
79
80 /*
81 * Make sure file matches (/usr|/var)(/spool)?/mail/.
82 * If is does, it's a "system mailbox", return true.
83 */
84 static int
ismailbox(char * file)85 ismailbox(char *file)
86 {
87 #ifdef preSVr4
88 return (strncmp(file, maildir, strlen(maildir)) == 0);
89 #else
90 if (strncmp(file, "/var", 4) != 0
91 && strncmp(file, "/usr", 4) != 0
92 )
93 return (0);
94 file += 4;
95 if (strncmp(file, "/spool", 6) == 0)
96 file += 6;
97 return (strncmp(file, "/mail/", 6) == 0);
98 #endif
99 }
100