/* $OpenBSD: x_attrib.c,v 1.17 2022/05/09 19:19:33 jsing 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 <openssl/asn1t.h>

#include <openssl/objects.h>

#include <openssl/x509.h>

#include "x509_lcl.h"

/*

 * XXX - remove X509_ATTRIBUTE_SET_it with next major bump.

 */

const ASN1_ITEM X509_ATTRIBUTE_SET_it = {

  .itype = ASN1_ITYPE_CHOICE,

  .utype = 0,

  .templates = NULL,

  .tcount = 0,

  .funcs = NULL,

  .size = sizeof(X509_ATTRIBUTE),

  .sname = "X509_ATTRIBUTE",

};

static const ASN1_TEMPLATE X509_ATTRIBUTE_seq_tt[] = {

  {

    .flags = 0,

    .tag = 0,

    .offset = offsetof(X509_ATTRIBUTE, object),

    .field_name = "object",

    .item = &ASN1_OBJECT_it,

  },

  {

    .flags = ASN1_TFLG_SET_OF,

    .tag = 0,

    .offset = offsetof(X509_ATTRIBUTE, set),

    .field_name = "set",

    .item = &ASN1_ANY_it,

  },

};

const ASN1_ITEM X509_ATTRIBUTE_it = {

  .itype = ASN1_ITYPE_SEQUENCE,

  .utype = V_ASN1_SEQUENCE,

  .templates = X509_ATTRIBUTE_seq_tt,

  .tcount = sizeof(X509_ATTRIBUTE_seq_tt) / sizeof(ASN1_TEMPLATE),

  .funcs = NULL,

  .size = sizeof(X509_ATTRIBUTE),

  .sname = "X509_ATTRIBUTE",

};

X509_ATTRIBUTE *

d2i_X509_ATTRIBUTE(X509_ATTRIBUTE **a, const unsigned char **in, long len)

{

  return (X509_ATTRIBUTE *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,

      &X509_ATTRIBUTE_it);

}

int

i2d_X509_ATTRIBUTE(X509_ATTRIBUTE *a, unsigned char **out)

{

  return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_ATTRIBUTE_it);

}

X509_ATTRIBUTE *

X509_ATTRIBUTE_new(void)

{

  return (X509_ATTRIBUTE *)ASN1_item_new(&X509_ATTRIBUTE_it);

}

void

X509_ATTRIBUTE_free(X509_ATTRIBUTE *a)

{

  ASN1_item_free((ASN1_VALUE *)a, &X509_ATTRIBUTE_it);

}

X509_ATTRIBUTE *

X509_ATTRIBUTE_dup(X509_ATTRIBUTE *x)

{

  return ASN1_item_dup(&X509_ATTRIBUTE_it, x);

}

X509_ATTRIBUTE *

X509_ATTRIBUTE_create(int nid, int atrtype, void *value)

{

  X509_ATTRIBUTE *ret = NULL;

  ASN1_TYPE *val = NULL;

  ASN1_OBJECT *oid;

  if ((oid = OBJ_nid2obj(nid)) == NULL)

    return (NULL);

  if ((ret = X509_ATTRIBUTE_new()) == NULL)

    return (NULL);

  ret->object = oid;

  if ((val = ASN1_TYPE_new()) == NULL)

    goto err;

  if (!sk_ASN1_TYPE_push(ret->set, val))

    goto err;

  ASN1_TYPE_set(val, atrtype, value);

  return (ret);

 err:

  if (ret != NULL)

    X509_ATTRIBUTE_free(ret);

  if (val != NULL)

    ASN1_TYPE_free(val);

  return (NULL);

}