2 * Copyright (c) 1997 - 2005 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 #include <sys/types.h>
41 RCSID("$Id: der.c 22429 2008-01-13 10:25:50Z lha $");
44 static const char *class_names[] = {
51 static const char *type_names[] = {
56 static const char *tag_names[] = {
57 "EndOfContent", /* 0 */
61 "OctetString", /* 4 */
67 "Enumerated", /* 10 */
76 "PrintableString", /* 19 */
81 "GeneralizedTime", /* 24 */
83 "VisibleString", /* 26 */
84 "GeneralString", /* 27 */
91 get_type(const char *name, const char *list[], unsigned len)
94 for (i = 0; i < len; i++)
95 if (list[i] && strcasecmp(list[i], name) == 0)
100 #define SIZEOF_ARRAY(a) (sizeof((a))/sizeof((a)[0]))
103 der_get_class_name(unsigned num)
105 if (num >= SIZEOF_ARRAY(class_names))
107 return class_names[num];
111 der_get_class_num(const char *name)
113 return get_type(name, class_names, SIZEOF_ARRAY(class_names));
117 der_get_type_name(unsigned num)
119 if (num >= SIZEOF_ARRAY(type_names))
121 return type_names[num];
125 der_get_type_num(const char *name)
127 return get_type(name, type_names, SIZEOF_ARRAY(type_names));
131 der_get_tag_name(unsigned num)
133 if (num >= SIZEOF_ARRAY(tag_names))
135 return tag_names[num];
139 der_get_tag_num(const char *name)
141 return get_type(name, tag_names, SIZEOF_ARRAY(tag_names));