xref: /illumos-gate/usr/src/cmd/fm/schemes/mem/mem_util.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
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 2004 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 #include <mem.h>
30 #include <fcntl.h>
31 #include <unistd.h>
32 #include <errno.h>
33 #include <fm/fmd_fmri.h>
34 
35 void
36 mem_strarray_free(char **arr, size_t dim)
37 {
38 	int i;
39 
40 	for (i = 0; i < dim; i++) {
41 		if (arr[i] != NULL)
42 			fmd_fmri_strfree(arr[i]);
43 	}
44 	fmd_fmri_free(arr, sizeof (char *) * dim);
45 }
46 
47 int
48 mem_page_cmd(int cmd, uint64_t addr)
49 {
50 	int fd, rc, err;
51 
52 	if ((fd = open("/dev/mem", O_RDONLY)) < 0)
53 		return (-1); /* errno is set for us */
54 
55 	if ((rc = ioctl(fd, cmd, &addr)) < 0)
56 		err = errno;
57 
58 	(void) close(fd);
59 
60 	if (rc < 0) {
61 		errno = err;
62 		return (-1);
63 	}
64 
65 	return (0);
66 }
67