libnvpair.c revision 168404 
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 <unistd.h>
30#include <strings.h>
31#include "libnvpair.h"
32
33/*
34 * libnvpair - A tools library for manipulating <name, value> pairs.
35 *
36 *	This library provides routines packing an unpacking nv pairs
37 *	for transporting data across process boundaries, transporting
38 *	between kernel and userland, and possibly saving onto disk files.
39 */
40
41static void
42indent(FILE *fp, int depth)
43{
44	while (depth-- > 0)
45		(void) fprintf(fp, "\t");
46}
47
48/*
49 * nvlist_print - Prints elements in an event buffer
50 */
51static
52void
53nvlist_print_with_indent(FILE *fp, nvlist_t *nvl, int depth)
54{
55	int i;
56	char *name;
57	uint_t nelem;
58	nvpair_t *nvp;
59
60	if (nvl == NULL)
61		return;
62
63	indent(fp, depth);
64	(void) fprintf(fp, "nvlist version: %d\n", NVL_VERSION(nvl));
65
66	nvp = nvlist_next_nvpair(nvl, NULL);
67
68	while (nvp) {
69		data_type_t type = nvpair_type(nvp);
70
71		indent(fp, depth);
72		name = nvpair_name(nvp);
73		(void) fprintf(fp, "\t%s =", name);
74		nelem = 0;
75		switch (type) {
76		case DATA_TYPE_BOOLEAN: {
77			(void) fprintf(fp, " 1");
78			break;
79		}
80		case DATA_TYPE_BOOLEAN_VALUE: {
81			boolean_t val;
82			(void) nvpair_value_boolean_value(nvp, &val);
83			(void) fprintf(fp, " %d", val);
84			break;
85		}
86		case DATA_TYPE_BYTE: {
87			uchar_t val;
88			(void) nvpair_value_byte(nvp, &val);
89			(void) fprintf(fp, " 0x%2.2x", val);
90			break;
91		}
92		case DATA_TYPE_INT8: {
93			int8_t val;
94			(void) nvpair_value_int8(nvp, &val);
95			(void) fprintf(fp, " %d", val);
96			break;
97		}
98		case DATA_TYPE_UINT8: {
99			uint8_t val;
100			(void) nvpair_value_uint8(nvp, &val);
101			(void) fprintf(fp, " 0x%x", val);
102			break;
103		}
104		case DATA_TYPE_INT16: {
105			int16_t val;
106			(void) nvpair_value_int16(nvp, &val);
107			(void) fprintf(fp, " %d", val);
108			break;
109		}
110		case DATA_TYPE_UINT16: {
111			uint16_t val;
112			(void) nvpair_value_uint16(nvp, &val);
113			(void) fprintf(fp, " 0x%x", val);
114			break;
115		}
116		case DATA_TYPE_INT32: {
117			int32_t val;
118			(void) nvpair_value_int32(nvp, &val);
119			(void) fprintf(fp, " %d", val);
120			break;
121		}
122		case DATA_TYPE_UINT32: {
123			uint32_t val;
124			(void) nvpair_value_uint32(nvp, &val);
125			(void) fprintf(fp, " 0x%x", val);
126			break;
127		}
128		case DATA_TYPE_INT64: {
129			int64_t val;
130			(void) nvpair_value_int64(nvp, &val);
131			(void) fprintf(fp, " %lld", (longlong_t)val);
132			break;
133		}
134		case DATA_TYPE_UINT64: {
135			uint64_t val;
136			(void) nvpair_value_uint64(nvp, &val);
137			(void) fprintf(fp, " 0x%llx", (u_longlong_t)val);
138			break;
139		}
140		case DATA_TYPE_STRING: {
141			char *val;
142			(void) nvpair_value_string(nvp, &val);
143			(void) fprintf(fp, " %s", val);
144			break;
145		}
146		case DATA_TYPE_BOOLEAN_ARRAY: {
147			boolean_t *val;
148			(void) nvpair_value_boolean_array(nvp, &val, &nelem);
149			for (i = 0; i < nelem; i++)
150				(void) fprintf(fp, " %d", val[i]);
151			break;
152		}
153		case DATA_TYPE_BYTE_ARRAY: {
154			uchar_t *val;
155			(void) nvpair_value_byte_array(nvp, &val, &nelem);
156			for (i = 0; i < nelem; i++)
157				(void) fprintf(fp, " 0x%2.2x", val[i]);
158			break;
159		}
160		case DATA_TYPE_INT8_ARRAY: {
161			int8_t *val;
162			(void) nvpair_value_int8_array(nvp, &val, &nelem);
163			for (i = 0; i < nelem; i++)
164				(void) fprintf(fp, " %d", val[i]);
165			break;
166		}
167		case DATA_TYPE_UINT8_ARRAY: {
168			uint8_t *val;
169			(void) nvpair_value_uint8_array(nvp, &val, &nelem);
170			for (i = 0; i < nelem; i++)
171				(void) fprintf(fp, " 0x%x", val[i]);
172			break;
173		}
174		case DATA_TYPE_INT16_ARRAY: {
175			int16_t *val;
176			(void) nvpair_value_int16_array(nvp, &val, &nelem);
177			for (i = 0; i < nelem; i++)
178				(void) fprintf(fp, " %d", val[i]);
179			break;
180		}
181		case DATA_TYPE_UINT16_ARRAY: {
182			uint16_t *val;
183			(void) nvpair_value_uint16_array(nvp, &val, &nelem);
184			for (i = 0; i < nelem; i++)
185				(void) fprintf(fp, " 0x%x", val[i]);
186			break;
187		}
188		case DATA_TYPE_INT32_ARRAY: {
189			int32_t *val;
190			(void) nvpair_value_int32_array(nvp, &val, &nelem);
191			for (i = 0; i < nelem; i++)
192				(void) fprintf(fp, " %d", val[i]);
193			break;
194		}
195		case DATA_TYPE_UINT32_ARRAY: {
196			uint32_t *val;
197			(void) nvpair_value_uint32_array(nvp, &val, &nelem);
198			for (i = 0; i < nelem; i++)
199				(void) fprintf(fp, " 0x%x", val[i]);
200			break;
201		}
202		case DATA_TYPE_INT64_ARRAY: {
203			int64_t *val;
204			(void) nvpair_value_int64_array(nvp, &val, &nelem);
205			for (i = 0; i < nelem; i++)
206				(void) fprintf(fp, " %lld", (longlong_t)val[i]);
207			break;
208		}
209		case DATA_TYPE_UINT64_ARRAY: {
210			uint64_t *val;
211			(void) nvpair_value_uint64_array(nvp, &val, &nelem);
212			for (i = 0; i < nelem; i++)
213				(void) fprintf(fp, " 0x%llx",
214				    (u_longlong_t)val[i]);
215			break;
216		}
217		case DATA_TYPE_STRING_ARRAY: {
218			char **val;
219			(void) nvpair_value_string_array(nvp, &val, &nelem);
220			for (i = 0; i < nelem; i++)
221				(void) fprintf(fp, " %s", val[i]);
222			break;
223		}
224		case DATA_TYPE_HRTIME: {
225			hrtime_t val;
226			(void) nvpair_value_hrtime(nvp, &val);
227			(void) fprintf(fp, " 0x%llx", val);
228			break;
229		}
230		case DATA_TYPE_NVLIST: {
231			nvlist_t *val;
232			(void) nvpair_value_nvlist(nvp, &val);
233			(void) fprintf(fp, " (embedded nvlist)\n");
234			nvlist_print_with_indent(fp, val, depth + 1);
235			indent(fp, depth + 1);
236			(void) fprintf(fp, "(end %s)\n", name);
237			break;
238		}
239		case DATA_TYPE_NVLIST_ARRAY: {
240			nvlist_t **val;
241			(void) nvpair_value_nvlist_array(nvp, &val, &nelem);
242			(void) fprintf(fp, " (array of embedded nvlists)\n");
243			for (i = 0; i < nelem; i++) {
244				indent(fp, depth + 1);
245				(void) fprintf(fp,
246				    "(start %s[%d])\n", name, i);
247				nvlist_print_with_indent(fp, val[i], depth + 1);
248				indent(fp, depth + 1);
249				(void) fprintf(fp, "(end %s[%d])\n", name, i);
250			}
251			break;
252		}
253		default:
254			(void) fprintf(fp, " unknown data type (%d)", type);
255			break;
256		}
257		(void) fprintf(fp, "\n");
258		nvp = nvlist_next_nvpair(nvl, nvp);
259	}
260}
261
262void
263nvlist_print(FILE *fp, nvlist_t *nvl)
264{
265	nvlist_print_with_indent(fp, nvl, 0);
266}
267