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