2 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
5 /* ====================================================================
6 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
58 /* X509 v3 extension utilities */
61 #include "internal/cryptlib.h"
62 #include <openssl/conf.h>
63 #include <openssl/x509v3.h>
65 /* Extension printing routines */
67 static int unknown_ext_print(BIO *out, const unsigned char *ext, int extlen,
68 unsigned long flag, int indent, int supported);
70 /* Print out a name+value stack */
72 void X509V3_EXT_val_prn(BIO *out, STACK_OF(CONF_VALUE) *val, int indent,
79 if (!ml || !sk_CONF_VALUE_num(val)) {
80 BIO_printf(out, "%*s", indent, "");
81 if (!sk_CONF_VALUE_num(val))
82 BIO_puts(out, "<EMPTY>\n");
84 for (i = 0; i < sk_CONF_VALUE_num(val); i++) {
86 BIO_printf(out, "%*s", indent, "");
88 BIO_printf(out, ", ");
89 nval = sk_CONF_VALUE_value(val, i);
91 BIO_puts(out, nval->value);
92 else if (!nval->value)
93 BIO_puts(out, nval->name);
94 #ifndef CHARSET_EBCDIC
96 BIO_printf(out, "%s:%s", nval->name, nval->value);
101 len = strlen(nval->value) + 1;
102 tmp = OPENSSL_malloc(len);
104 ascii2ebcdic(tmp, nval->value, len);
105 BIO_printf(out, "%s:%s", nval->name, tmp);
115 /* Main routine: print out a general extension */
117 int X509V3_EXT_print(BIO *out, X509_EXTENSION *ext, unsigned long flag,
120 void *ext_str = NULL;
122 ASN1_OCTET_STRING *extoct;
123 const unsigned char *p;
125 const X509V3_EXT_METHOD *method;
126 STACK_OF(CONF_VALUE) *nval = NULL;
129 extoct = X509_EXTENSION_get_data(ext);
130 p = ASN1_STRING_data(extoct);
131 extlen = ASN1_STRING_length(extoct);
133 if ((method = X509V3_EXT_get(ext)) == NULL)
134 return unknown_ext_print(out, p, extlen, flag, indent, 0);
136 ext_str = ASN1_item_d2i(NULL, &p, extlen, ASN1_ITEM_ptr(method->it));
138 ext_str = method->d2i(NULL, &p, extlen);
141 return unknown_ext_print(out, p, extlen, flag, indent, 1);
144 if ((value = method->i2s(method, ext_str)) == NULL) {
148 #ifndef CHARSET_EBCDIC
149 BIO_printf(out, "%*s%s", indent, "", value);
154 len = strlen(value) + 1;
155 tmp = OPENSSL_malloc(len);
157 ascii2ebcdic(tmp, value, len);
158 BIO_printf(out, "%*s%s", indent, "", tmp);
163 } else if (method->i2v) {
164 if ((nval = method->i2v(method, ext_str, NULL)) == NULL) {
168 X509V3_EXT_val_prn(out, nval, indent,
169 method->ext_flags & X509V3_EXT_MULTILINE);
170 } else if (method->i2r) {
171 if (!method->i2r(method, ext_str, out, indent))
177 sk_CONF_VALUE_pop_free(nval, X509V3_conf_free);
180 ASN1_item_free(ext_str, ASN1_ITEM_ptr(method->it));
182 method->ext_free(ext_str);
186 int X509V3_extensions_print(BIO *bp, char *title,
187 STACK_OF(X509_EXTENSION) *exts,
188 unsigned long flag, int indent)
192 if (sk_X509_EXTENSION_num(exts) <= 0)
196 BIO_printf(bp, "%*s%s:\n", indent, "", title);
200 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
203 ex = sk_X509_EXTENSION_value(exts, i);
204 if (indent && BIO_printf(bp, "%*s", indent, "") <= 0)
206 obj = X509_EXTENSION_get_object(ex);
207 i2a_ASN1_OBJECT(bp, obj);
208 j = X509_EXTENSION_get_critical(ex);
209 if (BIO_printf(bp, ": %s\n", j ? "critical" : "") <= 0)
211 if (!X509V3_EXT_print(bp, ex, flag, indent + 4)) {
212 BIO_printf(bp, "%*s", indent + 4, "");
213 ASN1_STRING_print(bp, X509_EXTENSION_get_data(ex));
215 if (BIO_write(bp, "\n", 1) <= 0)
221 static int unknown_ext_print(BIO *out, const unsigned char *ext, int extlen,
222 unsigned long flag, int indent, int supported)
224 switch (flag & X509V3_EXT_UNKNOWN_MASK) {
226 case X509V3_EXT_DEFAULT:
229 case X509V3_EXT_ERROR_UNKNOWN:
231 BIO_printf(out, "%*s<Parse Error>", indent, "");
233 BIO_printf(out, "%*s<Not Supported>", indent, "");
236 case X509V3_EXT_PARSE_UNKNOWN:
237 return ASN1_parse_dump(out, ext, extlen, indent, -1);
238 case X509V3_EXT_DUMP_UNKNOWN:
239 return BIO_dump_indent(out, (char *)ext, extlen, indent);
246 #ifndef OPENSSL_NO_STDIO
247 int X509V3_EXT_print_fp(FILE *fp, X509_EXTENSION *ext, int flag, int indent)
252 if ((bio_tmp = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL)
254 ret = X509V3_EXT_print(bio_tmp, ext, flag, indent);