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 2006 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#pragma ident	"%Z%%M%	%I%	%E% SMI"
31
32#include "mt.h"
33#include <stdio.h>
34#include <stdlib.h>
35#include <string.h>
36#include <sys/types.h>
37
38#define	VSTR	"# VERSION="
39
40
41/*
42 * check_version - check to make sure designated file is the correct version
43 *		returns : 0 - version correct
44 *			  1 - version incorrect
45 *			  2 - could not open file
46 *			  3 - corrupt file
47 */
48
49
50int
51check_version(int ver, char *fname)
52{
53	FILE *fp;		/* file pointer for sactab */
54	char line[BUFSIZ];	/* temp buffer for input */
55	char *p;		/* working pointer */
56	int version;		/* version number from sactab */
57
58	if ((fp = fopen(fname, "rF")) == NULL)
59		return (2);
60	p = line;
61	while (fgets(p, BUFSIZ, fp)) {
62		if (strncmp(p, VSTR, strlen(VSTR)) == 0) {
63			p += strlen(VSTR);
64			if (*p)
65				version = atoi(p);
66			else
67				return (3);
68			(void) fclose(fp);
69			return ((version != ver) ? 1 : 0);
70		}
71		p = line;
72	}
73	return (3);
74}
75