/* tasn_prn.c */

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

 * project 2000.

 */

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

 * Copyright (c) 2000 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).

 *

 */

#include <stddef.h>

#include <openssl/asn1.h>

#include <openssl/objects.h>

#include <openssl/buffer.h>

#include <openssl/err.h>

#include <openssl/nasn.h>

/* Print routines. Print out a whole structure from a template.

 */

static int asn1_item_print_nm(BIO *out, void *fld, int indent, const ASN1_ITEM *it, const char *name);

int ASN1_item_print(BIO *out, void *fld, int indent, const ASN1_ITEM *it)

{

	return asn1_item_print_nm(out, fld, indent, it, it->sname);

}

static int asn1_item_print_nm(BIO *out, void *fld, int indent, const ASN1_ITEM *it, const char *name)

{

	ASN1_STRING *str;

	const ASN1_TEMPLATE *tt;

	void *tmpfld;

	int i;

	if(!fld) {

		BIO_printf(out, "%*s%s ABSENT\n", indent, "", name);

		return 1;

	}

	switch(it->itype) {

		case ASN1_ITYPE_PRIMITIVE:

		if(it->templates)

			return ASN1_template_print(out, fld, indent, it->templates);

		return asn1_primitive_print(out, fld, it->utype, indent, name);

		break;

		case ASN1_ITYPE_MSTRING:

		str = fld;

		return asn1_primitive_print(out, fld, str->type, indent, name);

		case ASN1_ITYPE_EXTERN:

		BIO_printf(out, "%*s%s:EXTERNAL TYPE %s %s\n", indent, "", name, it->sname, fld ? "" : "ABSENT");

		return 1;

		case ASN1_ITYPE_COMPAT:

		BIO_printf(out, "%*s%s:COMPATIBLE TYPE %s %s\n", indent, "", name, it->sname, fld ? "" : "ABSENT");

		return 1;

		case ASN1_ITYPE_CHOICE:

		/* CHOICE type, get selector */

		i = asn1_get_choice_selector(fld, it);

		/* This should never happen... */

		if((i < 0) || (i >= it->tcount)) {

			BIO_printf(out, "%s selector [%d] out of range\n", it->sname, i);

			return 1;

		}

		tt = it->templates + i;

		tmpfld = asn1_get_field(fld, tt);

		return ASN1_template_print(out, tmpfld, indent, tt);

		case ASN1_ITYPE_SEQUENCE:

		BIO_printf(out, "%*s%s {\n", indent, "", name);

		/* Get each field entry */

		for(i = 0, tt = it->templates; i < it->tcount; i++, tt++) {

			tmpfld = asn1_get_field(fld, tt);

			ASN1_template_print(out, tmpfld, indent + 2, tt);

		}

		BIO_printf(out, "%*s}\n", indent, "");

		return 1;

		default:

		return 0;

	}

}

int ASN1_template_print(BIO *out, void *fld, int indent, const ASN1_TEMPLATE *tt)

{

	int i, flags;

#if 0

	if(!fld) return 0; 

#endif

	flags = tt->flags;

	if(flags & ASN1_TFLG_SK_MASK) {

		char *tname;

		void *skitem;

		/* SET OF, SEQUENCE OF */

		if(flags & ASN1_TFLG_SET_OF) tname = "SET";

		else tname = "SEQUENCE";

		if(fld) {

			BIO_printf(out, "%*s%s OF %s {\n", indent, "", tname, tt->field_name);

			for(i = 0; i < sk_num(fld); i++) {

				skitem = sk_value(fld, i);

				asn1_item_print_nm(out, skitem, indent + 2, tt->item, "");

			}

			BIO_printf(out, "%*s}\n", indent, "");

		} else 

			BIO_printf(out, "%*s%s OF %s ABSENT\n", indent, "", tname, tt->field_name);

		return 1;

	}

	return asn1_item_print_nm(out, fld, indent, tt->item, tt->field_name);

}

static int asn1_primitive_print(BIO *out, void *fld, long utype, int indent, const char *name)

{

	ASN1_STRING *str = fld;

	if(fld) {

		if(utype == V_ASN1_BOOLEAN) {

			int *bool = fld;

if(*bool == -1) printf("BOOL MISSING\n");

			BIO_printf(out, "%*s%s:%s", indent, "", "BOOLEAN", *bool ? "TRUE" : "FALSE");

		} else if((utype == V_ASN1_INTEGER) 

			  || (utype == V_ASN1_ENUMERATED)) {

			char *s, *nm;

			s = i2s_ASN1_INTEGER(NULL, fld);

			if(utype == V_ASN1_INTEGER) nm = "INTEGER";

			else nm = "ENUMERATED";

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

			OPENSSL_free(s);

		} else if(utype == V_ASN1_NULL) {

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

		} else if(utype == V_ASN1_UTCTIME) {

			BIO_printf(out, "%*s%s:%s:", indent, "", name, "UTCTIME");

			ASN1_UTCTIME_print(out, str);

		} else if(utype == V_ASN1_GENERALIZEDTIME) {

			BIO_printf(out, "%*s%s:%s:", indent, "", name, "GENERALIZEDTIME");

			ASN1_GENERALIZEDTIME_print(out, str);

		} else if(utype == V_ASN1_OBJECT) {

			char objbuf[80], *ln;

			ln = OBJ_nid2ln(OBJ_obj2nid(fld));

			if(!ln) ln = "";

			OBJ_obj2txt(objbuf, sizeof objbuf, fld, 1);

			BIO_printf(out, "%*s%s:%s (%s)", indent, "", "OBJECT", ln, objbuf);

		} else {

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

			ASN1_STRING_print_ex(out, str, ASN1_STRFLGS_DUMP_UNKNOWN|ASN1_STRFLGS_SHOW_TYPE);

		}

		BIO_printf(out, "\n");

	} else BIO_printf(out, "%*s%s [ABSENT]\n", indent, "", name);

	return 1;

}