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 1992-2002 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* 30 * Metadevice diskset interfaces 31 */ 32 33 #include "meta_lib_prv.h" 34 #include <sys/vfstab.h> 35 36 static FILE *mfp = NULL; 37 38 FILE * open_mnttab(void)39open_mnttab(void) 40 { 41 if (mfp != NULL) { 42 if (fseeko(mfp, (off_t)0L, SEEK_SET) == -1) { 43 (void) fclose(mfp); 44 mfp = NULL; 45 return (NULL); 46 } 47 return (mfp); 48 } 49 50 if ((mfp = fopen(MNTTAB, "r")) == NULL) 51 return (NULL); 52 53 return (mfp); 54 } 55 56 int close_mnttab(void)57close_mnttab(void) 58 { 59 int ret = -1; 60 61 if (mfp == NULL) 62 return (0); 63 64 ret = fclose(mfp); 65 66 mfp = NULL; 67 68 return (ret); 69 } 70