sl@0: /* crypto/objects/obj_lib.c */
sl@0: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
sl@0:  * All rights reserved.
sl@0:  *
sl@0:  * This package is an SSL implementation written
sl@0:  * by Eric Young (eay@cryptsoft.com).
sl@0:  * The implementation was written so as to conform with Netscapes SSL.
sl@0:  * 
sl@0:  * This library is free for commercial and non-commercial use as long as
sl@0:  * the following conditions are aheared to.  The following conditions
sl@0:  * apply to all code found in this distribution, be it the RC4, RSA,
sl@0:  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
sl@0:  * included with this distribution is covered by the same copyright terms
sl@0:  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
sl@0:  * 
sl@0:  * Copyright remains Eric Young's, and as such any Copyright notices in
sl@0:  * the code are not to be removed.
sl@0:  * If this package is used in a product, Eric Young should be given attribution
sl@0:  * as the author of the parts of the library used.
sl@0:  * This can be in the form of a textual message at program startup or
sl@0:  * in documentation (online or textual) provided with the package.
sl@0:  * 
sl@0:  * Redistribution and use in source and binary forms, with or without
sl@0:  * modification, are permitted provided that the following conditions
sl@0:  * are met:
sl@0:  * 1. Redistributions of source code must retain the copyright
sl@0:  *    notice, this list of conditions and the following disclaimer.
sl@0:  * 2. Redistributions in binary form must reproduce the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer in the
sl@0:  *    documentation and/or other materials provided with the distribution.
sl@0:  * 3. All advertising materials mentioning features or use of this software
sl@0:  *    must display the following acknowledgement:
sl@0:  *    "This product includes cryptographic software written by
sl@0:  *     Eric Young (eay@cryptsoft.com)"
sl@0:  *    The word 'cryptographic' can be left out if the rouines from the library
sl@0:  *    being used are not cryptographic related :-).
sl@0:  * 4. If you include any Windows specific code (or a derivative thereof) from 
sl@0:  *    the apps directory (application code) you must include an acknowledgement:
sl@0:  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
sl@0:  * 
sl@0:  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
sl@0:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
sl@0:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
sl@0:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
sl@0:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
sl@0:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
sl@0:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
sl@0:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
sl@0:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
sl@0:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
sl@0:  * SUCH DAMAGE.
sl@0:  * 
sl@0:  * The licence and distribution terms for any publically available version or
sl@0:  * derivative of this code cannot be changed.  i.e. this code cannot simply be
sl@0:  * copied and put under another distribution licence
sl@0:  * [including the GNU Public Licence.]
sl@0:  */
sl@0: 
sl@0: #include <stdio.h>
sl@0: #include "cryptlib.h"
sl@0: #include <openssl/lhash.h>
sl@0: #include <openssl/objects.h>
sl@0: #include <openssl/buffer.h>
sl@0: 
sl@0: EXPORT_C ASN1_OBJECT *OBJ_dup(const ASN1_OBJECT *o)
sl@0: 	{
sl@0: 	ASN1_OBJECT *r;
sl@0: 	int i;
sl@0: 	char *ln=NULL;
sl@0: 
sl@0: 	if (o == NULL) return(NULL);
sl@0: 	if (!(o->flags & ASN1_OBJECT_FLAG_DYNAMIC))
sl@0: 		return((ASN1_OBJECT *)o); /* XXX: ugh! Why? What kind of
sl@0: 					     duplication is this??? */
sl@0: 
sl@0: 	r=ASN1_OBJECT_new();
sl@0: 	if (r == NULL)
sl@0: 		{
sl@0: 		OBJerr(OBJ_F_OBJ_DUP,ERR_R_ASN1_LIB);
sl@0: 		return(NULL);
sl@0: 		}
sl@0: 	r->data=OPENSSL_malloc(o->length);
sl@0: 	if (r->data == NULL)
sl@0: 		goto err;
sl@0: 	if (o->data != NULL)
sl@0: 	memcpy(r->data,o->data,o->length);
sl@0: 	r->length=o->length;
sl@0: 	r->nid=o->nid;
sl@0: 	r->ln=r->sn=NULL;
sl@0: 	if (o->ln != NULL)
sl@0: 		{
sl@0: 		i=strlen(o->ln)+1;
sl@0: 		r->ln=ln=OPENSSL_malloc(i);
sl@0: 		if (r->ln == NULL) goto err;
sl@0: 		memcpy(ln,o->ln,i);
sl@0: 		}
sl@0: 
sl@0: 	if (o->sn != NULL)
sl@0: 		{
sl@0: 		char *s;
sl@0: 
sl@0: 		i=strlen(o->sn)+1;
sl@0: 		r->sn=s=OPENSSL_malloc(i);
sl@0: 		if (r->sn == NULL) goto err;
sl@0: 		memcpy(s,o->sn,i);
sl@0: 		}
sl@0: 	r->flags=o->flags|(ASN1_OBJECT_FLAG_DYNAMIC|
sl@0: 		ASN1_OBJECT_FLAG_DYNAMIC_STRINGS|ASN1_OBJECT_FLAG_DYNAMIC_DATA);
sl@0: 	return(r);
sl@0: err:
sl@0: 	OBJerr(OBJ_F_OBJ_DUP,ERR_R_MALLOC_FAILURE);
sl@0: 	if (r != NULL)
sl@0: 		{
sl@0: 		if (ln != NULL) OPENSSL_free(ln);
sl@0: 		if (r->data != NULL) OPENSSL_free(r->data);
sl@0: 		OPENSSL_free(r);
sl@0: 		}
sl@0: 	return(NULL);
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int OBJ_cmp(const ASN1_OBJECT *a, const ASN1_OBJECT *b)
sl@0: 	{
sl@0: 	int ret;
sl@0: 
sl@0: 	ret=(a->length-b->length);
sl@0: 	if (ret) return(ret);
sl@0: 	return(memcmp(a->data,b->data,a->length));
sl@0: 	}