dmake: do not set MAKEFLAGS=k
[unleashed/tickless.git] / usr / src / lib / libmail / common / delempty.c
blob266b33b39b2948ce895c1291f46121eb2c46974c
1 /*
2 * CDDL HEADER START
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
19 * CDDL HEADER END
23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
28 /* All Rights Reserved */
30 #pragma ident "%Z%%M% %I% %E% SMI"
33 * NAME
34 * delempty - delete an empty mail box
36 * SYNOPSIS
37 * int delempty(mode_t mode, char *mailname)
39 * DESCRIPTION
40 * Delete an empty mail box if it's allowed. Check
41 * the value of xgetenv("DEL_EMPTY_MFILE") for
42 * "yes" [always], "no" [never] or the default [based
43 * on the mode].
46 #include "libmail.h"
47 #include <sys/types.h>
48 #include <unistd.h>
50 int
51 delempty(mode_t mode, char *mailname)
53 char *del_empty = Xgetenv("DEL_EMPTY_MFILE");
54 size_t del_len;
55 int do_del = 0;
57 del_len = strlen(del_empty);
58 /* "yes" means always remove the mailfile */
59 if (casncmp(del_empty, "yes", (ssize_t)del_len))
60 do_del = 1;
61 /* "no" means never remove the mailfile */
62 else if (!casncmp(del_empty, "no", (ssize_t)del_len)) {
63 /* check for mode 0660 */
64 if ((mode & 07777) == MFMODE)
65 do_del = 1;
68 if (do_del)
69 (void) unlink(mailname);
70 return (do_del);