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). */
58 /* X509 v3 extension utilities */
62 #include <openssl/bio.h>
63 #include <openssl/conf.h>
64 #include <openssl/mem.h>
65 #include <openssl/x509v3.h>
67 /* Extension printing routines */
69 static int unknown_ext_print(BIO *out, X509_EXTENSION *ext,
70 unsigned long flag, int indent, int supported);
72 /* Print out a name+value stack */
74 void X509V3_EXT_val_prn(BIO *out, STACK_OF(CONF_VALUE) *val, int indent,
81 if (!ml || !sk_CONF_VALUE_num(val)) {
82 BIO_printf(out, "%*s", indent, "");
83 if (!sk_CONF_VALUE_num(val))
84 BIO_puts(out, "<EMPTY>\n");
86 for (i = 0; i < sk_CONF_VALUE_num(val); i++) {
88 BIO_printf(out, "%*s", indent, "");
90 BIO_printf(out, ", ");
91 nval = sk_CONF_VALUE_value(val, i);
93 BIO_puts(out, nval->value);
94 else if (!nval->value)
95 BIO_puts(out, nval->name);
97 BIO_printf(out, "%s:%s", nval->name, nval->value);
103 /* Main routine: print out a general extension */
105 int X509V3_EXT_print(BIO *out, X509_EXTENSION *ext, unsigned long flag,
108 void *ext_str = NULL;
110 const unsigned char *p;
111 const X509V3_EXT_METHOD *method;
112 STACK_OF(CONF_VALUE) *nval = NULL;
115 if (!(method = X509V3_EXT_get(ext)))
116 return unknown_ext_print(out, ext, flag, indent, 0);
117 p = ext->value->data;
120 ASN1_item_d2i(NULL, &p, ext->value->length,
121 ASN1_ITEM_ptr(method->it));
123 ext_str = method->d2i(NULL, &p, ext->value->length);
126 return unknown_ext_print(out, ext, flag, indent, 1);
129 if (!(value = method->i2s(method, ext_str))) {
133 BIO_printf(out, "%*s%s", indent, "", value);
134 } else if (method->i2v) {
135 if (!(nval = method->i2v(method, ext_str, NULL))) {
139 X509V3_EXT_val_prn(out, nval, indent,
140 method->ext_flags & X509V3_EXT_MULTILINE);
141 } else if (method->i2r) {
142 if (!method->i2r(method, ext_str, out, indent))
148 sk_CONF_VALUE_pop_free(nval, X509V3_conf_free);
152 ASN1_item_free(ext_str, ASN1_ITEM_ptr(method->it));
154 method->ext_free(ext_str);
158 int X509V3_extensions_print(BIO *bp, const char *title,
159 STACK_OF(X509_EXTENSION) *exts,
160 unsigned long flag, int indent)
165 if (sk_X509_EXTENSION_num(exts) <= 0)
169 BIO_printf(bp, "%*s%s:\n", indent, "", title);
173 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
176 ex = sk_X509_EXTENSION_value(exts, i);
177 if (indent && BIO_printf(bp, "%*s", indent, "") <= 0)
179 obj = X509_EXTENSION_get_object(ex);
180 i2a_ASN1_OBJECT(bp, obj);
181 j = X509_EXTENSION_get_critical(ex);
182 if (BIO_printf(bp, ": %s\n", j ? "critical" : "") <= 0)
184 if (!X509V3_EXT_print(bp, ex, flag, indent + 4)) {
185 BIO_printf(bp, "%*s", indent + 4, "");
186 M_ASN1_OCTET_STRING_print(bp, ex->value);
188 if (BIO_write(bp, "\n", 1) <= 0)
194 static int unknown_ext_print(BIO *out, X509_EXTENSION *ext,
195 unsigned long flag, int indent, int supported)
197 switch (flag & X509V3_EXT_UNKNOWN_MASK) {
199 case X509V3_EXT_DEFAULT:
202 case X509V3_EXT_ERROR_UNKNOWN:
204 BIO_printf(out, "%*s<Parse Error>", indent, "");
206 BIO_printf(out, "%*s<Not Supported>", indent, "");
209 case X509V3_EXT_PARSE_UNKNOWN:
210 case X509V3_EXT_DUMP_UNKNOWN:
211 return BIO_hexdump(out, ext->value->data, ext->value->length, indent);
218 #ifndef OPENSSL_NO_FP_API
219 int X509V3_EXT_print_fp(FILE *fp, X509_EXTENSION *ext, int flag, int indent)
223 if (!(bio_tmp = BIO_new_fp(fp, BIO_NOCLOSE)))
225 ret = X509V3_EXT_print(bio_tmp, ext, flag, indent);