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 /*
42 * mailx -- a modified version of a University of California at Berkeley
43 * mail program
44 *
45 * Local routines that are installation dependent.
46 */
47
48 #include "rcv.h"
49
50 static int ismailbox(char *file);
51
52 /*
53 * Locate the user's mailbox file (ie, the place where new, unread
54 * mail is queued). In SVr4 UNIX, it is in /var/mail/name.
55 * In preSVr4 UNIX, it is in either /usr/mail/name or /usr/spool/mail/name.
56 */
57 void
findmail(char * name)58 findmail(char *name)
59 {
60 register char *cp;
61
62 if (name != NOSTR) {
63 copy(name, copy(maildir, mailname));
64 issysmbox = 1; /* it's a system mailbox */
65 } else if ((cp = getenv("MAIL")) != NULL) {
66 /* if $MAIL is set, use it */
67 nstrcpy(mailname, PATHSIZE, cp);
68 issysmbox = ismailbox(mailname);
69 /* XXX - should warn that there's no locking? */
70 } else {
71 copy(myname, copy(maildir, mailname));
72 issysmbox = 1;
73 }
74 if (issysmbox)
75 lockname = strrchr(mailname, '/') + 1;
76 }
77
78 /*
79 * Make sure file matches (/usr|/var)(/spool)?/mail/.
80 * If is does, it's a "system mailbox", return true.
81 */
82 static int
ismailbox(char * file)83 ismailbox(char *file)
84 {
85 #ifdef preSVr4
86 return (strncmp(file, maildir, strlen(maildir)) == 0);
87 #else
88 if (strncmp(file, "/var", 4) != 0
89 && strncmp(file, "/usr", 4) != 0
90 )
91 return (0);
92 file += 4;
93 if (strncmp(file, "/spool", 6) == 0)
94 file += 6;
95 return (strncmp(file, "/mail/", 6) == 0);
96 #endif
97 }
98