crypto/openssl-0.9.7e/crypto/asn1/x_attrib.c

   1 /* crypto/asn1/x_attrib.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58
  59 #include <stdio.h>
  60 #include "cryptlib.h"
  61 #include <openssl/objects.h>
  62 #include <openssl/asn1t.h>
  63 #include <openssl/x509.h>
  64
  65 /* X509_ATTRIBUTE: this has the following form:
  66  *
  67  * typedef struct x509_attributes_st
  68  *      {
  69  *      ASN1_OBJECT *object;
  70  *      int single;
  71  *      union   {
  72  *              char            *ptr;
  73  *              STACK_OF(ASN1_TYPE) *set;
  74  *              ASN1_TYPE       *single;
  75  *              } value;
  76  *      } X509_ATTRIBUTE;
  77  *
  78  * this needs some extra thought because the CHOICE type is
  79  * merged with the main structure and because the value can
  80  * be anything at all we *must* try the SET OF first because
  81  * the ASN1_ANY type will swallow anything including the whole
  82  * SET OF structure.
  83  */
  84
  85 ASN1_CHOICE(X509_ATTRIBUTE_SET) = {
  86         ASN1_SET_OF(X509_ATTRIBUTE, value.set, ASN1_ANY),
  87         ASN1_SIMPLE(X509_ATTRIBUTE, value.single, ASN1_ANY)
  88 } ASN1_CHOICE_END_selector(X509_ATTRIBUTE, X509_ATTRIBUTE_SET, single)
  89
  90 ASN1_SEQUENCE(X509_ATTRIBUTE) = {
  91         ASN1_SIMPLE(X509_ATTRIBUTE, object, ASN1_OBJECT),
  92         /* CHOICE type merged with parent */
  93         ASN1_EX_COMBINE(0, 0, X509_ATTRIBUTE_SET)
  94 } ASN1_SEQUENCE_END(X509_ATTRIBUTE)
  95
  96 IMPLEMENT_ASN1_FUNCTIONS(X509_ATTRIBUTE)
  97 IMPLEMENT_ASN1_DUP_FUNCTION(X509_ATTRIBUTE)
  98
  99 X509_ATTRIBUTE *X509_ATTRIBUTE_create(int nid, int atrtype, void *value)
 100         {
 101         X509_ATTRIBUTE *ret=NULL;
 102         ASN1_TYPE *val=NULL;
 103
 104         if ((ret=X509_ATTRIBUTE_new()) == NULL)
 105                 return(NULL);
 106         ret->object=OBJ_nid2obj(nid);
 107         ret->single=0;
 108         if ((ret->value.set=sk_ASN1_TYPE_new_null()) == NULL) goto err;
 109         if ((val=ASN1_TYPE_new()) == NULL) goto err;
 110         if (!sk_ASN1_TYPE_push(ret->value.set,val)) goto err;
 111
 112         ASN1_TYPE_set(val,atrtype,value);
 113         return(ret);
 114 err:
 115         if (ret != NULL) X509_ATTRIBUTE_free(ret);
 116         if (val != NULL) ASN1_TYPE_free(val);
 117         return(NULL);
 118         }