3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
6 /* ====================================================================
7 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
35 * 6. Redistributions of any form whatsoever must retain the following
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com). This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
59 /* X509 v3 extension utilities */
63 #include <openssl/conf.h>
64 #include <openssl/x509v3.h>
66 /* Extension printing routines */
68 static int unknown_ext_print(BIO *out, X509_EXTENSION *ext,
69 unsigned long flag, int indent, int supported);
71 /* Print out a name+value stack */
73 void X509V3_EXT_val_prn(BIO *out, STACK_OF(CONF_VALUE) *val, int indent,
80 if (!ml || !sk_CONF_VALUE_num(val)) {
81 BIO_printf(out, "%*s", indent, "");
82 if (!sk_CONF_VALUE_num(val))
83 BIO_puts(out, "<EMPTY>\n");
85 for (i = 0; i < sk_CONF_VALUE_num(val); i++) {
87 BIO_printf(out, "%*s", indent, "");
89 BIO_printf(out, ", ");
90 nval = sk_CONF_VALUE_value(val, i);
92 BIO_puts(out, nval->value);
93 else if (!nval->value)
94 BIO_puts(out, nval->name);
95 #ifndef CHARSET_EBCDIC
97 BIO_printf(out, "%s:%s", nval->name, nval->value);
102 len = strlen(nval->value) + 1;
103 tmp = OPENSSL_malloc(len);
105 ascii2ebcdic(tmp, nval->value, len);
106 BIO_printf(out, "%s:%s", nval->name, tmp);
116 /* Main routine: print out a general extension */
118 int X509V3_EXT_print(BIO *out, X509_EXTENSION *ext, unsigned long flag,
121 void *ext_str = NULL;
123 const unsigned char *p;
124 const X509V3_EXT_METHOD *method;
125 STACK_OF(CONF_VALUE) *nval = NULL;
128 if (!(method = X509V3_EXT_get(ext)))
129 return unknown_ext_print(out, ext, flag, indent, 0);
130 p = ext->value->data;
133 ASN1_item_d2i(NULL, &p, ext->value->length,
134 ASN1_ITEM_ptr(method->it));
136 ext_str = method->d2i(NULL, &p, ext->value->length);
139 return unknown_ext_print(out, ext, flag, indent, 1);
142 if (!(value = method->i2s(method, ext_str))) {
146 #ifndef CHARSET_EBCDIC
147 BIO_printf(out, "%*s%s", indent, "", value);
152 len = strlen(value) + 1;
153 tmp = OPENSSL_malloc(len);
155 ascii2ebcdic(tmp, value, len);
156 BIO_printf(out, "%*s%s", indent, "", tmp);
161 } else if (method->i2v) {
162 if (!(nval = method->i2v(method, ext_str, NULL))) {
166 X509V3_EXT_val_prn(out, nval, indent,
167 method->ext_flags & X509V3_EXT_MULTILINE);
168 } else if (method->i2r) {
169 if (!method->i2r(method, ext_str, out, indent))
175 sk_CONF_VALUE_pop_free(nval, X509V3_conf_free);
179 ASN1_item_free(ext_str, ASN1_ITEM_ptr(method->it));
181 method->ext_free(ext_str);
185 int X509V3_extensions_print(BIO *bp, char *title,
186 STACK_OF(X509_EXTENSION) *exts,
187 unsigned long flag, int indent)
191 if (sk_X509_EXTENSION_num(exts) <= 0)
195 BIO_printf(bp, "%*s%s:\n", indent, "", title);
199 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
202 ex = sk_X509_EXTENSION_value(exts, i);
203 if (indent && BIO_printf(bp, "%*s", indent, "") <= 0)
205 obj = X509_EXTENSION_get_object(ex);
206 i2a_ASN1_OBJECT(bp, obj);
207 j = X509_EXTENSION_get_critical(ex);
208 if (BIO_printf(bp, ": %s\n", j ? "critical" : "") <= 0)
210 if (!X509V3_EXT_print(bp, ex, flag, indent + 4)) {
211 BIO_printf(bp, "%*s", indent + 4, "");
212 M_ASN1_OCTET_STRING_print(bp, ex->value);
214 if (BIO_write(bp, "\n", 1) <= 0)
220 static int unknown_ext_print(BIO *out, X509_EXTENSION *ext,
221 unsigned long flag, int indent, int supported)
223 switch (flag & X509V3_EXT_UNKNOWN_MASK) {
225 case X509V3_EXT_DEFAULT:
228 case X509V3_EXT_ERROR_UNKNOWN:
230 BIO_printf(out, "%*s<Parse Error>", indent, "");
232 BIO_printf(out, "%*s<Not Supported>", indent, "");
235 case X509V3_EXT_PARSE_UNKNOWN:
236 return ASN1_parse_dump(out,
237 ext->value->data, ext->value->length, indent,
239 case X509V3_EXT_DUMP_UNKNOWN:
240 return BIO_dump_indent(out, (char *)ext->value->data,
241 ext->value->length, indent);
248 #ifndef OPENSSL_NO_FP_API
249 int X509V3_EXT_print_fp(FILE *fp, X509_EXTENSION *ext, int flag, int indent)
253 if (!(bio_tmp = BIO_new_fp(fp, BIO_NOCLOSE)))
255 ret = X509V3_EXT_print(bio_tmp, ext, flag, indent);