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#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29#include <sys/systeminfo.h>
30#include <sys/utsname.h>
31#include <limits.h>
32#include <strings.h>
33#include "_conv.h"
34
35/*
36 * Isalist(1) expansion.
37 *
38 * Obtain the native instruction sets executable on this platform and unpack
39 * each element into the isalist descriptor.
40 */
41Isa_desc *
42conv_isalist(void)
43{
44	char		info[SYS_NMLN], * list, * ptr, * optr;
45	Isa_desc *	desc;
46	Isa_opt *	opt;
47	long		size;
48	int		no;
49
50	if ((desc = calloc(1, sizeof (Isa_desc))) == 0)
51		return (0);
52
53	/*
54	 * If we can't get the isalist() perhaps we've gone back to a release
55	 * too old to support it - silently ignore.
56	 */
57	if ((size = sysinfo(SI_ISALIST, info, SYS_NMLN)) == -1)
58		return (desc);
59	desc->isa_listsz = (size_t)size;
60
61	/*
62	 * Duplicate the isalist string in preparation for breaking it up.
63	 */
64	if ((list = strdup(info)) == 0)
65		return (desc);
66	desc->isa_list = list;
67
68	/*
69	 * Determine the number of instruction sets and use this to size the
70	 * isalist option table.
71	 */
72	for (no = 1, ptr = list; *ptr; ptr++) {
73		if (*ptr == ' ')
74			no++;
75	}
76	if ((opt = malloc(no * sizeof (Isa_opt))) == 0)
77		return (desc);
78	desc->isa_opt = opt;
79	desc->isa_optno = no;
80
81	/*
82	 * Unpack the instruction set list.
83	 */
84	for (optr = ptr = list; *ptr; ptr++) {
85		if (*ptr != ' ')
86			continue;
87
88		opt->isa_name = optr;
89		opt->isa_namesz = ptr - optr;
90		opt++;
91
92		*ptr = '\0';
93		optr = ptr + 1;
94	}
95	opt->isa_name = optr;
96	opt->isa_namesz = ptr - optr;
97
98	return (desc);
99}
100
101/*
102 * uname(2) expansion.
103 *
104 * Obtain the information that identifies the current operating system and
105 * unpack those elements we're interested in (presently name and release).
106 */
107Uts_desc *
108conv_uts(void)
109{
110	struct utsname	utsname;
111	Uts_desc *	desc;
112	size_t		size;
113
114	if ((desc = calloc(1, sizeof (Uts_desc))) == 0)
115		return (0);
116
117	/*
118	 * If we can't get the uname(2) silently ignore.
119	 */
120	if (uname(&utsname) == -1)
121		return (desc);
122
123	/*
124	 * Duplicate the operating system name and release components.
125	 */
126	size = strlen(utsname.sysname);
127	if ((desc->uts_osname = malloc(size + 1)) == 0)
128		return (desc);
129	desc->uts_osnamesz = size;
130	(void) strncpy(desc->uts_osname, utsname.sysname, size);
131
132	size = strlen(utsname.release);
133	if ((desc->uts_osrel = malloc(size + 1)) == 0)
134		return (0);
135	desc->uts_osrelsz = size;
136	(void) strncpy(desc->uts_osrel, utsname.release, size);
137
138	return (desc);
139}
140