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 (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 24 /* All Rights Reserved */ 25 26 /* 27 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31 #pragma ident "%Z%%M% %I% %E% SMI" 32 /*LINTLIBRARY*/ 33 34 /* 35 * NAME 36 * delempty - delete an empty mail box 37 * 38 * SYNOPSIS 39 * int delempty(mode_t mode, char *mailname) 40 * 41 * DESCRIPTION 42 * Delete an empty mail box if it's allowed. Check 43 * the value of xgetenv("DEL_EMPTY_MFILE") for 44 * "yes" [always], "no" [never] or the default [based 45 * on the mode]. 46 */ 47 48 #include "c_synonyms.h" 49 #include "libmail.h" 50 #include <sys/types.h> 51 #include <unistd.h> 52 53 int 54 delempty(mode_t mode, char *mailname) 55 { 56 char *del_empty = Xgetenv("DEL_EMPTY_MFILE"); 57 size_t del_len; 58 int do_del = 0; 59 60 del_len = strlen(del_empty); 61 /* "yes" means always remove the mailfile */ 62 if (casncmp(del_empty, "yes", (ssize_t)del_len)) 63 do_del = 1; 64 /* "no" means never remove the mailfile */ 65 else if (!casncmp(del_empty, "no", (ssize_t)del_len)) { 66 /* check for mode 0660 */ 67 if ((mode & 07777) == MFMODE) 68 do_del = 1; 69 } 70 71 if (do_del) 72 (void) unlink(mailname); 73 return (do_del); 74 } 75