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 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26#pragma ident	"%Z%%M%	%I%	%E% SMI"
27
28#include <stdio.h>
29#include <unistd.h>
30#include <strings.h>
31#include <libdevinfo.h>
32
33static void
34usage(void)
35{
36	(void) fprintf(stderr,
37	    "Usage: devprop [-n device-path] "
38	    "[-vq] [-{b|i|l|s}] [property [...]]\n");
39}
40
41int
42main(int argc, char *argv[])
43{
44	int c;
45	boolean_t verbose = B_FALSE, quote = B_FALSE,
46	    error = B_FALSE;
47	int type = DI_PROP_TYPE_UNKNOWN;
48	char *path = "/";
49	di_node_t dn;
50	uchar_t *val_b;
51	int *val_i;
52	int64_t *val_l;
53	char *val_s;
54	int n;
55
56	extern char *optarg;
57	extern int optind;
58
59#define	BOOL(ch, var)				\
60case ch:					\
61	var = B_TRUE;				\
62	break
63
64#define	PER_OPT(ch, typ)			\
65case ch:					\
66	if (type != DI_PROP_TYPE_UNKNOWN) {	\
67		usage();			\
68		return (1);			\
69	}					\
70	type = (typ);				\
71	break
72
73	while ((c = getopt(argc, argv, ":n:vqbils")) != -1) {
74		switch (c) {
75		case 'n':
76			path = optarg;
77			break;
78		case ':':
79			usage();
80			return (1);
81
82		BOOL('v', verbose);
83		BOOL('q', quote);
84		BOOL('?', error);
85
86		PER_OPT('b', DI_PROP_TYPE_BYTE);
87		PER_OPT('i', DI_PROP_TYPE_INT);
88		PER_OPT('l', DI_PROP_TYPE_INT64);
89		PER_OPT('s', DI_PROP_TYPE_STRING);
90		}
91	}
92
93#undef	BOOL
94#undef	PER_OPT
95
96	if (error) {
97		usage();
98		return (1);
99	}
100
101	/* default to strings */
102	if (type == DI_PROP_TYPE_UNKNOWN)
103		type = DI_PROP_TYPE_STRING;
104
105	/*
106	 * It's convenient to use the filesystem as a source of device
107	 * node paths.  In that case, the path will be prefixed with
108	 * "/devices", which we strip off here as di_init() expects
109	 * just the path to the node.
110	 */
111	if (strncmp("/devices/", path, strlen("/devices/")) == 0)
112		path += strlen("/devices");
113
114	if ((dn = di_init(path, DINFOPROP)) == DI_NODE_NIL) {
115		perror("di_init");
116		return (1);
117	}
118
119	/* Careful with that axe, Eugene... */
120#define	PER_TYPE(typ, func, val, incr, form, pv, sep)	\
121case (typ):						\
122	n = func(DDI_DEV_T_ANY,				\
123	    dn, argv[optind], &(val));			\
124	while (n > 0) {					\
125		(void) printf((form), pv);		\
126		incr;					\
127		n--;					\
128		if (n > 0)				\
129			(void) printf(sep);		\
130	}						\
131	(void) printf("\n");				\
132	break
133
134	while (optind < argc) {
135		if (verbose)
136			(void) printf("%s=", argv[optind]);
137
138		switch (type) {
139		PER_TYPE(DI_PROP_TYPE_BYTE, di_prop_lookup_bytes,
140		    val_b, val_b++, "%2.2x", *val_b, ".");
141		PER_TYPE(DI_PROP_TYPE_INT, di_prop_lookup_ints,
142		    val_i, val_i++, "%8.8x", *val_i, ".");
143		PER_TYPE(DI_PROP_TYPE_INT64, di_prop_lookup_int64,
144		    val_l, val_l++, "%16.16llx", *val_l, ".");
145		PER_TYPE(DI_PROP_TYPE_STRING, di_prop_lookup_strings,
146		    val_s, val_s += strlen(val_s) + 1,
147		    (quote ? "\"%s\"" : "%s"), val_s, " + ");
148		}
149
150		optind++;
151	}
152
153#undef	PER_TYPE
154
155	di_fini(dn);
156
157	return (0);
158}
159