IABSD.fr/src/lib/libcrypto/objects/obj_lib.c

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• Author : tb
  Date : 2025-05-10 05:54:38
  Hash : 27854fe4
  Message : Use err_local.h rather than err.h in most places ok jsing

• lib/libcrypto/objects/obj_lib.c

• /* $OpenBSD: obj_lib.c,v 1.20 2025/05/10 05:54:38 tb Exp $ */
  /* 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 <string.h>
  
  #include <openssl/buffer.h>
  #include <openssl/lhash.h>
  #include <openssl/objects.h>
  
  #include "asn1_local.h"
  #include "err_local.h"
  
  ASN1_OBJECT *
  OBJ_dup(const ASN1_OBJECT *o)
  {
  	ASN1_OBJECT *r;
  	char *ln = NULL, *sn = NULL;
  	unsigned char *data = 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) {
  		OBJerror(ERR_R_ASN1_LIB);
  		return (NULL);
  	}
  	data = malloc(o->length);
  	if (data == NULL)
  		goto err;
  	if (o->data != NULL)
  		memcpy(data, o->data, o->length);
  	/* once data attached to object it remains const */
  	r->data = data;
  	r->length = o->length;
  	r->nid = o->nid;
  	r->ln = r->sn = NULL;
  	if (o->ln != NULL) {
  		ln = strdup(o->ln);
  		if (ln == NULL)
  			goto err;
  		r->ln = ln;
  	}
  
  	if (o->sn != NULL) {
  		sn = strdup(o->sn);
  		if (sn == NULL)
  			goto err;
  		r->sn = sn;
  	}
  	r->flags = o->flags | (ASN1_OBJECT_FLAG_DYNAMIC |
  	    ASN1_OBJECT_FLAG_DYNAMIC_STRINGS | ASN1_OBJECT_FLAG_DYNAMIC_DATA);
  	return (r);
  
   err:
  	OBJerror(ERR_R_MALLOC_FAILURE);
  	free(ln);
  	free(sn);
  	free(data);
  	free(r);
  	return (NULL);
  }
  LCRYPTO_ALIAS(OBJ_dup);
  
  int
  OBJ_cmp(const ASN1_OBJECT *a, const ASN1_OBJECT *b)
  {
  	int cmp;
  
  	if ((cmp = a->length - b->length) != 0)
  		return cmp;
  	if (a->length == 0)
  		return 0;
  	return memcmp(a->data, b->data, a->length);
  }
  LCRYPTO_ALIAS(OBJ_cmp);