/* v3_prn.c */

 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL

  * project 1999.

  */

 /* ====================================================================

  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.

  *

  * Redistribution and use in source and binary forms, with or without

  * modification, are permitted provided that the following conditions

  * are met:

  *

  * 1. Redistributions of source code must retain the above copyright

  *    notice, this list of conditions and the following disclaimer. 

  *

  * 2. Redistributions in binary form must reproduce the above copyright

  *    notice, this list of conditions and the following disclaimer in

  *    the documentation and/or other materials provided with the

  *    distribution.

  *

  * 3. All advertising materials mentioning features or use of this

  *    software must display the following acknowledgment:

  *    "This product includes software developed by the OpenSSL Project

  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"

  *

  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to

  *    endorse or promote products derived from this software without

  *    prior written permission. For written permission, please contact

  *    licensing@OpenSSL.org.

  *

  * 5. Products derived from this software may not be called "OpenSSL"

  *    nor may "OpenSSL" appear in their names without prior written

  *    permission of the OpenSSL Project.

  *

  * 6. Redistributions of any form whatsoever must retain the following

  *    acknowledgment:

  *    "This product includes software developed by the OpenSSL Project

  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"

  *

  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY

  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR

  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED

  * OF THE POSSIBILITY OF SUCH DAMAGE.

  * ====================================================================

  *

  * This product includes cryptographic software written by Eric Young

  * (eay@cryptsoft.com).  This product includes software written by Tim

  * Hudson (tjh@cryptsoft.com).

  *

  */

 /* X509 v3 extension utilities */

 #include <stdio.h>

 #include "cryptlib.h"

 #include <openssl/conf.h>

 #include <openssl/x509v3.h>

 /* Extension printing routines */

 static int unknown_ext_print(BIO *out, X509_EXTENSION *ext, unsigned long flag, int indent, int supported);

 /* Print out a name+value stack */

 EXPORT_C void X509V3_EXT_val_prn(BIO *out, STACK_OF(CONF_VALUE) *val, int indent, int ml)

 {

 	int i;

 	CONF_VALUE *nval;

 	if(!val) return;

 	if(!ml || !sk_CONF_VALUE_num(val)) {

 		BIO_printf(out, "%*s", indent, "");

 		if(!sk_CONF_VALUE_num(val)) BIO_puts(out, "<EMPTY>\n");

 	}

 	for(i = 0; i < sk_CONF_VALUE_num(val); i++) {

 		if(ml) BIO_printf(out, "%*s", indent, "");

 		else if(i > 0) BIO_printf(out, ", ");

 		nval = sk_CONF_VALUE_value(val, i);

 		if(!nval->name) BIO_puts(out, nval->value);

 		else if(!nval->value) BIO_puts(out, nval->name);

 #ifndef CHARSET_EBCDIC

 		else BIO_printf(out, "%s:%s", nval->name, nval->value);

 #else

 		else {

 			int len;

 			char *tmp;

 			len = strlen(nval->value)+1;

 			tmp = OPENSSL_malloc(len);

 			if (tmp)

 			{

 				ascii2ebcdic(tmp, nval->value, len);

 				BIO_printf(out, "%s:%s", nval->name, tmp);

 				OPENSSL_free(tmp);

 			}

 		}

 #endif

 		if(ml) BIO_puts(out, "\n");

 	}

 }

 /* Main routine: print out a general extension */

 EXPORT_C int X509V3_EXT_print(BIO *out, X509_EXTENSION *ext, unsigned long flag, int indent)

 {

 	void *ext_str = NULL;

 	char *value = NULL;

 	const unsigned char *p;

 	X509V3_EXT_METHOD *method;	

 	STACK_OF(CONF_VALUE) *nval = NULL;

 	int ok = 1;

 	if(!(method = X509V3_EXT_get(ext)))

 		return unknown_ext_print(out, ext, flag, indent, 0);

 	p = ext->value->data;

 	if(method->it) ext_str = ASN1_item_d2i(NULL, &p, ext->value->length, ASN1_ITEM_ptr(method->it));

 	else ext_str = method->d2i(NULL, &p, ext->value->length);

 	if(!ext_str) return unknown_ext_print(out, ext, flag, indent, 1);

 	if(method->i2s) {

 		if(!(value = method->i2s(method, ext_str))) {

 			ok = 0;

 			goto err;

 		}

 #ifndef CHARSET_EBCDIC

 		BIO_printf(out, "%*s%s", indent, "", value);

 #else

 		{

 			int len;

 			char *tmp;

 			len = strlen(value)+1;

 			tmp = OPENSSL_malloc(len);

 			if (tmp)

 			{

 				ascii2ebcdic(tmp, value, len);

 				BIO_printf(out, "%*s%s", indent, "", tmp);

 				OPENSSL_free(tmp);

 			}

 		}

 #endif

 	} else if(method->i2v) {

 		if(!(nval = method->i2v(method, ext_str, NULL))) {

 			ok = 0;

 			goto err;

 		}

 		X509V3_EXT_val_prn(out, nval, indent,

 				 method->ext_flags & X509V3_EXT_MULTILINE);

 	} else if(method->i2r) {

 		if(!method->i2r(method, ext_str, out, indent)) ok = 0;

 	} else ok = 0;

 	err:

 		sk_CONF_VALUE_pop_free(nval, X509V3_conf_free);

 		if(value) OPENSSL_free(value);

 		if(method->it) ASN1_item_free(ext_str, ASN1_ITEM_ptr(method->it));

 		else method->ext_free(ext_str);

 		return ok;

 }

 EXPORT_C int X509V3_extensions_print(BIO *bp, char *title, STACK_OF(X509_EXTENSION) *exts, unsigned long flag, int indent)

 {

 	int i, j;

 	if(sk_X509_EXTENSION_num(exts) <= 0) return 1;

 	if(title) 

 		{

 		BIO_printf(bp,"%*s%s:\n",indent, "", title);

 		indent += 4;

 		}

 	for (i=0; i<sk_X509_EXTENSION_num(exts); i++)

 		{

 		ASN1_OBJECT *obj;

 		X509_EXTENSION *ex;

 		ex=sk_X509_EXTENSION_value(exts, i);

 		if (indent && BIO_printf(bp,"%*s",indent, "") <= 0) return 0;

 		obj=X509_EXTENSION_get_object(ex);

 		i2a_ASN1_OBJECT(bp,obj);

 		j=X509_EXTENSION_get_critical(ex);

 		if (BIO_printf(bp,": %s\n",j?"critical":"") <= 0)

 			return 0;

 		if(!X509V3_EXT_print(bp, ex, flag, indent + 4))

 			{

 			BIO_printf(bp, "%*s", indent + 4, "");

 			M_ASN1_OCTET_STRING_print(bp,ex->value);

 			}

 		if (BIO_write(bp,"\n",1) <= 0) return 0;

 		}

 	return 1;

 }

 static int unknown_ext_print(BIO *out, X509_EXTENSION *ext, unsigned long flag, int indent, int supported)

 {

 	switch(flag & X509V3_EXT_UNKNOWN_MASK) {

 		case X509V3_EXT_DEFAULT:

 		return 0;

 		case X509V3_EXT_ERROR_UNKNOWN:

 		if(supported)

 			BIO_printf(out, "%*s<Parse Error>", indent, "");

 		else

 			BIO_printf(out, "%*s<Not Supported>", indent, "");

 		return 1;

 		case X509V3_EXT_PARSE_UNKNOWN:

 			return ASN1_parse_dump(out,

 				ext->value->data, ext->value->length, indent, -1);

 		case X509V3_EXT_DUMP_UNKNOWN:

 			return BIO_dump_indent(out, (char *)ext->value->data, ext->value->length, indent);

 		default:

 		return 1;

 	}

 }

 #ifndef OPENSSL_NO_FP_API

 EXPORT_C int X509V3_EXT_print_fp(FILE *fp, X509_EXTENSION *ext, int flag, int indent)

 {

 	BIO *bio_tmp;

 	int ret;

 	if(!(bio_tmp = BIO_new_fp(fp, BIO_NOCLOSE))) return 0;

 	ret = X509V3_EXT_print(bio_tmp, ext, flag, indent);

 	BIO_free(bio_tmp);

 	return ret;

 }

 #endif