cap.c revision 5088:26c540f30cd3 
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 2007 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26#pragma ident	"%Z%%M%	%I%	%E% SMI"
27
28/*
29 * String conversion routine for hardware capabilities types.
30 */
31#include	<strings.h>
32#include	<stdio.h>
33#include	<sys/machelf.h>
34#include	<elfcap.h>
35#include	"cap_msg.h"
36#include	"_conv.h"
37
38static int
39conv_cap_1(Xword val, char *str, size_t len, Half mach,
40    Conv_fmt_flags_t fmt_flags,
41    int (*fptr)(uint64_t, char *, size_t, int, ushort_t))
42{
43	size_t	_len;
44	int do_bkt = (fmt_flags & CONV_FMT_NOBKT) == 0;
45
46	/*
47	 * Note that for the purposes of this routine, I consider
48	 * CONV_FMT_NOBKT to mean no brackets, or anything that
49	 * is placed outside of them. We also drop the hex version
50	 * of the flags that are put in front of the opening bracket.
51	 */
52	if (do_bkt) {
53		_len = sprintf(str, MSG_ORIG(MSG_GBL_OSQBRKT), EC_XWORD(val));
54
55		len -= _len;
56		str += _len;
57	}
58
59	if ((*fptr)(val, str, len, CAP_FMT_SNGSPACE, mach) != 0)
60		return (0);
61
62	if (do_bkt) {
63		_len = strlen(str);
64		if ((len - _len) >= MSG_GBL_CSQBRKT_SIZE) {
65			str += _len;
66			(void) strcpy(str, MSG_ORIG(MSG_GBL_CSQBRKT));
67		}
68	}
69	return (1);
70}
71
72const char *
73conv_cap_val_hw1(Xword val, Half mach, Conv_fmt_flags_t fmt_flags,
74    Conv_cap_val_hw1_buf_t *cap_val_hw1_buf)
75{
76	if (val == 0)
77		return (MSG_ORIG(MSG_GBL_ZERO));
78
79	if (conv_cap_1(val, cap_val_hw1_buf->buf, sizeof (cap_val_hw1_buf->buf),
80	    mach, fmt_flags, hwcap_1_val2str) == 0)
81		return (conv_invalid_val(&cap_val_hw1_buf->inv_buf, val, 0));
82	return ((const char *)cap_val_hw1_buf->buf);
83}
84
85const char *
86conv_cap_val_sf1(Xword val, Half mach, Conv_fmt_flags_t fmt_flags,
87    Conv_cap_val_sf1_buf_t *cap_val_sf1_buf)
88{
89	if (val == 0)
90		return (MSG_ORIG(MSG_GBL_ZERO));
91
92	if (conv_cap_1(val, cap_val_sf1_buf->buf, sizeof (cap_val_sf1_buf->buf),
93	    mach, fmt_flags, sfcap_1_val2str) == 0)
94		return (conv_invalid_val(&cap_val_sf1_buf->inv_buf, val, 0));
95	return ((const char *)cap_val_sf1_buf->buf);
96}
97
98const char *
99conv_cap_tag(Xword tag, Conv_inv_buf_t *inv_buf)
100{
101	static const Msg	tags[] = {
102		MSG_CA_SUNW_NULL,	MSG_CA_SUNW_HW_1,
103		MSG_CA_SUNW_SF_1
104	};
105
106	if (tag <= CA_SUNW_SF_1)
107		return (MSG_ORIG(tags[tag]));
108	else
109		return (conv_invalid_val(inv_buf, tag, 0));
110}
111
112const char *
113conv_cap_val(Xword tag, Xword val, Half mach, Conv_cap_val_buf_t *cap_val_buf)
114{
115	if (tag == CA_SUNW_HW_1)
116		return (conv_cap_val_hw1(val, mach, 0,
117		    &cap_val_buf->cap_val_hw1_buf));
118	else if (tag == CA_SUNW_SF_1)
119		return (conv_cap_val_sf1(val, mach, 0,
120		    &cap_val_buf->cap_val_sf1_buf));
121	else
122		return (conv_invalid_val(&cap_val_buf->inv_buf, val, 0));
123}
124