crypto/x509/x_attrib.c

   1 /*
   2  * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include <stdio.h>
  11 #include "internal/cryptlib.h"
  12 #include <openssl/objects.h>
  13 #include <openssl/asn1t.h>
  14 #include <openssl/x509.h>
  15 #include "x509_local.h"
  16
  17 DEFINE_STACK_OF(ASN1_TYPE)
  18
  19 /*-
  20  * X509_ATTRIBUTE: this has the following form:
  21  *
  22  * typedef struct x509_attributes_st
  23  *      {
  24  *      ASN1_OBJECT *object;
  25  *      STACK_OF(ASN1_TYPE) *set;
  26  *      } X509_ATTRIBUTE;
  27  *
  28  */
  29
  30 ASN1_SEQUENCE(X509_ATTRIBUTE) = {
  31         ASN1_SIMPLE(X509_ATTRIBUTE, object, ASN1_OBJECT),
  32         ASN1_SET_OF(X509_ATTRIBUTE, set, ASN1_ANY)
  33 } ASN1_SEQUENCE_END(X509_ATTRIBUTE)
  34
  35 IMPLEMENT_ASN1_FUNCTIONS(X509_ATTRIBUTE)
  36 IMPLEMENT_ASN1_DUP_FUNCTION(X509_ATTRIBUTE)
  37
  38 X509_ATTRIBUTE *X509_ATTRIBUTE_create(int nid, int atrtype, void *value)
  39 {
  40     X509_ATTRIBUTE *ret = NULL;
  41     ASN1_TYPE *val = NULL;
  42
  43     if ((ret = X509_ATTRIBUTE_new()) == NULL)
  44         return NULL;
  45     ret->object = OBJ_nid2obj(nid);
  46     if ((val = ASN1_TYPE_new()) == NULL)
  47         goto err;
  48     if (!sk_ASN1_TYPE_push(ret->set, val))
  49         goto err;
  50
  51     ASN1_TYPE_set(val, atrtype, value);
  52     return ret;
  53  err:
  54     X509_ATTRIBUTE_free(ret);
  55     ASN1_TYPE_free(val);
  56     return NULL;
  57 }