xref: /onnv-gate/usr/src/lib/libmail/common/delempty.c (revision 1219:f89f56c2d9ac)
10Sstevel@tonic-gate /*
20Sstevel@tonic-gate  * CDDL HEADER START
30Sstevel@tonic-gate  *
40Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
50Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
60Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
70Sstevel@tonic-gate  * with the License.
80Sstevel@tonic-gate  *
90Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
100Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
110Sstevel@tonic-gate  * See the License for the specific language governing permissions
120Sstevel@tonic-gate  * and limitations under the License.
130Sstevel@tonic-gate  *
140Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
150Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
160Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
170Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
180Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
190Sstevel@tonic-gate  *
200Sstevel@tonic-gate  * CDDL HEADER END
210Sstevel@tonic-gate  */
22*1219Sraf 
230Sstevel@tonic-gate /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
240Sstevel@tonic-gate /*	  All Rights Reserved  	*/
250Sstevel@tonic-gate 
260Sstevel@tonic-gate /*
27*1219Sraf  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
28*1219Sraf  * Use is subject to license terms.
290Sstevel@tonic-gate  */
300Sstevel@tonic-gate 
310Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
320Sstevel@tonic-gate /*LINTLIBRARY*/
330Sstevel@tonic-gate 
340Sstevel@tonic-gate /*
350Sstevel@tonic-gate  *  NAME
360Sstevel@tonic-gate  *	delempty - delete an empty mail box
370Sstevel@tonic-gate  *
380Sstevel@tonic-gate  *  SYNOPSIS
390Sstevel@tonic-gate  *	int delempty(mode_t mode, char *mailname)
400Sstevel@tonic-gate  *
410Sstevel@tonic-gate  *  DESCRIPTION
420Sstevel@tonic-gate  *	Delete an empty mail box if it's allowed. Check
430Sstevel@tonic-gate  *	the value of xgetenv("DEL_EMPTY_MFILE") for
440Sstevel@tonic-gate  *	"yes" [always], "no" [never] or the default [based
450Sstevel@tonic-gate  *	on the mode].
460Sstevel@tonic-gate  */
470Sstevel@tonic-gate 
48*1219Sraf #include "c_synonyms.h"
490Sstevel@tonic-gate #include "libmail.h"
500Sstevel@tonic-gate #include <sys/types.h>
510Sstevel@tonic-gate #include <unistd.h>
520Sstevel@tonic-gate 
530Sstevel@tonic-gate int
540Sstevel@tonic-gate delempty(mode_t mode, char *mailname)
550Sstevel@tonic-gate {
560Sstevel@tonic-gate 	char *del_empty = Xgetenv("DEL_EMPTY_MFILE");
570Sstevel@tonic-gate 	size_t del_len;
580Sstevel@tonic-gate 	int do_del = 0;
590Sstevel@tonic-gate 
600Sstevel@tonic-gate 	del_len = strlen(del_empty);
610Sstevel@tonic-gate 	/* "yes" means always remove the mailfile */
620Sstevel@tonic-gate 	if (casncmp(del_empty, "yes", (ssize_t)del_len))
630Sstevel@tonic-gate 		do_del = 1;
640Sstevel@tonic-gate 	/* "no" means never remove the mailfile */
650Sstevel@tonic-gate 	else if (!casncmp(del_empty, "no", (ssize_t)del_len)) {
660Sstevel@tonic-gate 		/* check for mode 0660 */
670Sstevel@tonic-gate 		if ((mode & 07777) == MFMODE)
680Sstevel@tonic-gate 			do_del = 1;
690Sstevel@tonic-gate 	}
700Sstevel@tonic-gate 
710Sstevel@tonic-gate 	if (do_del)
720Sstevel@tonic-gate 		(void) unlink(mailname);
730Sstevel@tonic-gate 	return (do_del);
740Sstevel@tonic-gate }
75