v3_prn.c revision 68651 
1/* v3_prn.c */
2/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
3 * project 1999.
4 */
5/* ====================================================================
6 * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 *
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
18 *    distribution.
19 *
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/)"
24 *
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.
29 *
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.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 *    acknowledgment:
36 *    "This product includes software developed by the OpenSSL Project
37 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
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 * ====================================================================
52 *
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).
56 *
57 */
58/* X509 v3 extension utilities */
59
60#include <stdio.h>
61#include "cryptlib.h"
62#include <openssl/conf.h>
63#include <openssl/x509v3.h>
64
65/* Extension printing routines */
66
67/* Print out a name+value stack */
68
69void X509V3_EXT_val_prn(BIO *out, STACK_OF(CONF_VALUE) *val, int indent, int ml)
70{
71	int i;
72	CONF_VALUE *nval;
73	if(!val) return;
74	if(!ml || !sk_CONF_VALUE_num(val)) {
75		BIO_printf(out, "%*s", indent, "");
76		if(!sk_CONF_VALUE_num(val)) BIO_puts(out, "<EMPTY>\n");
77	}
78	for(i = 0; i < sk_CONF_VALUE_num(val); i++) {
79		if(ml) BIO_printf(out, "%*s", indent, "");
80		else if(i > 0) BIO_printf(out, ", ");
81		nval = sk_CONF_VALUE_value(val, i);
82		if(!nval->name) BIO_puts(out, nval->value);
83		else if(!nval->value) BIO_puts(out, nval->name);
84#ifndef CHARSET_EBCDIC
85		else BIO_printf(out, "%s:%s", nval->name, nval->value);
86#else
87		else {
88			char tmp[10240]; /* 10k is BIO_printf's limit anyway */
89			ascii2ebcdic(tmp, nval->value, strlen(nval->value)+1);
90			BIO_printf(out, "%s:%s", nval->name, tmp);
91		}
92#endif
93		if(ml) BIO_puts(out, "\n");
94	}
95}
96
97/* Main routine: print out a general extension */
98
99int X509V3_EXT_print(BIO *out, X509_EXTENSION *ext, int flag, int indent)
100{
101	char *ext_str = NULL, *value = NULL;
102	unsigned char *p;
103	X509V3_EXT_METHOD *method;
104	STACK_OF(CONF_VALUE) *nval = NULL;
105	int ok = 1;
106	if(!(method = X509V3_EXT_get(ext))) return 0;
107	p = ext->value->data;
108	if(!(ext_str = method->d2i(NULL, &p, ext->value->length))) return 0;
109	if(method->i2s) {
110		if(!(value = method->i2s(method, ext_str))) {
111			ok = 0;
112			goto err;
113		}
114#ifndef CHARSET_EBCDIC
115		BIO_printf(out, "%*s%s", indent, "", value);
116#else
117		{
118			char tmp[10240]; /* 10k is BIO_printf's limit anyway */
119			ascii2ebcdic(tmp, value, strlen(value)+1);
120			BIO_printf(out, "%*s%s", indent, "", tmp);
121		}
122#endif
123	} else if(method->i2v) {
124		if(!(nval = method->i2v(method, ext_str, NULL))) {
125			ok = 0;
126			goto err;
127		}
128		X509V3_EXT_val_prn(out, nval, indent,
129				 method->ext_flags & X509V3_EXT_MULTILINE);
130	} else if(method->i2r) {
131		if(!method->i2r(method, ext_str, out, indent)) ok = 0;
132	} else ok = 0;
133
134	err:
135		sk_CONF_VALUE_pop_free(nval, X509V3_conf_free);
136		if(value) OPENSSL_free(value);
137		method->ext_free(ext_str);
138		return ok;
139}
140
141#ifndef NO_FP_API
142int X509V3_EXT_print_fp(FILE *fp, X509_EXTENSION *ext, int flag, int indent)
143{
144	BIO *bio_tmp;
145	int ret;
146	if(!(bio_tmp = BIO_new_fp(fp, BIO_NOCLOSE))) return 0;
147	ret = X509V3_EXT_print(bio_tmp, ext, flag, indent);
148	BIO_free(bio_tmp);
149	return ret;
150}
151#endif
152