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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 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. 12 * 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] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 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 * NAME 32 * delempty - delete an empty mail box 33 * 34 * SYNOPSIS 35 * int delempty(mode_t mode, char *mailname) 36 * 37 * DESCRIPTION 38 * Delete an empty mail box if it's allowed. Check 39 * the value of xgetenv("DEL_EMPTY_MFILE") for 40 * "yes" [always], "no" [never] or the default [based 41 * on the mode]. 42 */ 43 44 #include "libmail.h" 45 #include <sys/types.h> 46 #include <unistd.h> 47 48 int 49 delempty(mode_t mode, char *mailname) 50 { 51 char *del_empty = Xgetenv("DEL_EMPTY_MFILE"); 52 size_t del_len; 53 int do_del = 0; 54 55 del_len = strlen(del_empty); 56 /* "yes" means always remove the mailfile */ 57 if (casncmp(del_empty, "yes", (ssize_t)del_len)) 58 do_del = 1; 59 /* "no" means never remove the mailfile */ 60 else if (!casncmp(del_empty, "no", (ssize_t)del_len)) { 61 /* check for mode 0660 */ 62 if ((mode & 07777) == MFMODE) 63 do_del = 1; 64 } 65 66 if (do_del) 67 (void) unlink(mailname); 68 return (do_del); 69 } 70