/* crypto/objects/obj_lib.c */

 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)

  * All rights reserved.

  *

  * This package is an SSL implementation written

  * by Eric Young (eay@cryptsoft.com).

  * The implementation was written so as to conform with Netscapes SSL.

  * 

  * This library is free for commercial and non-commercial use as long as

  * the following conditions are aheared to.  The following conditions

  * apply to all code found in this distribution, be it the RC4, RSA,

  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation

  * included with this distribution is covered by the same copyright terms

  * except that the holder is Tim Hudson (tjh@cryptsoft.com).

  * 

  * Copyright remains Eric Young's, and as such any Copyright notices in

  * the code are not to be removed.

  * If this package is used in a product, Eric Young should be given attribution

  * as the author of the parts of the library used.

  * This can be in the form of a textual message at program startup or

  * in documentation (online or textual) provided with the package.

  * 

  * 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 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 acknowledgement:

  *    "This product includes cryptographic software written by

  *     Eric Young (eay@cryptsoft.com)"

  *    The word 'cryptographic' can be left out if the rouines from the library

  *    being used are not cryptographic related :-).

  * 4. If you include any Windows specific code (or a derivative thereof) from 

  *    the apps directory (application code) you must include an acknowledgement:

  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"

  * 

  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND

  * ANY EXPRESS 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 AUTHOR OR 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.

  * 

  * The licence and distribution terms for any publically available version or

  * derivative of this code cannot be changed.  i.e. this code cannot simply be

  * copied and put under another distribution licence

  * [including the GNU Public Licence.]

  */

 #include <stdio.h>

 #include "cryptlib.h"

 #include <openssl/lhash.h>

 #include <openssl/objects.h>

 #include <openssl/buffer.h>

 EXPORT_C ASN1_OBJECT *OBJ_dup(const ASN1_OBJECT *o)

 	{

 	ASN1_OBJECT *r;

 	int i;

 	char *ln=NULL;

 	if (o == NULL) return(NULL);

 	if (!(o->flags & ASN1_OBJECT_FLAG_DYNAMIC))

 		return((ASN1_OBJECT *)o); /* XXX: ugh! Why? What kind of

 					     duplication is this??? */

 	r=ASN1_OBJECT_new();

 	if (r == NULL)

 		{

 		OBJerr(OBJ_F_OBJ_DUP,ERR_R_ASN1_LIB);

 		return(NULL);

 		}

 	r->data=OPENSSL_malloc(o->length);

 	if (r->data == NULL)

 		goto err;

 	if (o->data != NULL)

 	memcpy(r->data,o->data,o->length);

 	r->length=o->length;

 	r->nid=o->nid;

 	r->ln=r->sn=NULL;

 	if (o->ln != NULL)

 		{

 		i=strlen(o->ln)+1;

 		r->ln=ln=OPENSSL_malloc(i);

 		if (r->ln == NULL) goto err;

 		memcpy(ln,o->ln,i);

 		}

 	if (o->sn != NULL)

 		{

 		char *s;

 		i=strlen(o->sn)+1;

 		r->sn=s=OPENSSL_malloc(i);

 		if (r->sn == NULL) goto err;

 		memcpy(s,o->sn,i);

 		}

 	r->flags=o->flags|(ASN1_OBJECT_FLAG_DYNAMIC|

 		ASN1_OBJECT_FLAG_DYNAMIC_STRINGS|ASN1_OBJECT_FLAG_DYNAMIC_DATA);

 	return(r);

 err:

 	OBJerr(OBJ_F_OBJ_DUP,ERR_R_MALLOC_FAILURE);

 	if (r != NULL)

 		{

 		if (ln != NULL) OPENSSL_free(ln);

 		if (r->data != NULL) OPENSSL_free(r->data);

 		OPENSSL_free(r);

 		}

 	return(NULL);

 	}

 EXPORT_C int OBJ_cmp(const ASN1_OBJECT *a, const ASN1_OBJECT *b)

 	{

 	int ret;

 	ret=(a->length-b->length);

 	if (ret) return(ret);

 	return(memcmp(a->data,b->data,a->length));

 	}