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/asn1_mac.h> 63 #include <openssl/x509.h> 64 65 /* sequence */ 66 int i2d_X509_ATTRIBUTE(X509_ATTRIBUTE *a, unsigned char **pp) 67 { 68 int k=0; 69 int r=0,ret=0; 70 unsigned char **p=NULL; 71 72 if (a == NULL) return(0); 73 74 p=NULL; 75 for (;;) 76 { 77 if (k) 78 { 79 r=ASN1_object_size(1,ret,V_ASN1_SEQUENCE); 80 if (pp == NULL) return(r); 81 p=pp; 82 ASN1_put_object(p,1,ret,V_ASN1_SEQUENCE, 83 V_ASN1_UNIVERSAL); 84 } 85 86 ret+=i2d_ASN1_OBJECT(a->object,p); 87 if (a->set) 88 ret+=i2d_ASN1_SET_OF_ASN1_TYPE(a->value.set,p,i2d_ASN1_TYPE, 89 V_ASN1_SET,V_ASN1_UNIVERSAL,IS_SET); 90 else 91 ret+=i2d_ASN1_TYPE(a->value.single,p); 92 if (k++) return(r); 93 } 94 } 95 96 X509_ATTRIBUTE *d2i_X509_ATTRIBUTE(X509_ATTRIBUTE **a, unsigned char **pp, 97 long length) 98 { 99 M_ASN1_D2I_vars(a,X509_ATTRIBUTE *,X509_ATTRIBUTE_new); 100 101 M_ASN1_D2I_Init(); 102 M_ASN1_D2I_start_sequence(); 103 M_ASN1_D2I_get(ret->object,d2i_ASN1_OBJECT); 104 105 if ((c.slen != 0) && 106 (M_ASN1_next == (V_ASN1_CONSTRUCTED|V_ASN1_UNIVERSAL|V_ASN1_SET))) 107 { 108 ret->set=1; 109 M_ASN1_D2I_get_set_type(ASN1_TYPE,ret->value.set,d2i_ASN1_TYPE, 110 ASN1_TYPE_free); 111 } 112 else 113 { 114 ret->set=0; 115 M_ASN1_D2I_get(ret->value.single,d2i_ASN1_TYPE); 116 } 117 118 M_ASN1_D2I_Finish(a,X509_ATTRIBUTE_free,ASN1_F_D2I_X509_ATTRIBUTE); 119 } 120 121 X509_ATTRIBUTE *X509_ATTRIBUTE_create(int nid, int atrtype, void *value) 122 { 123 X509_ATTRIBUTE *ret=NULL; 124 ASN1_TYPE *val=NULL; 125 126 if ((ret=X509_ATTRIBUTE_new()) == NULL) 127 return(NULL); 128 ret->object=OBJ_nid2obj(nid); 129 ret->set=1; 130 if ((ret->value.set=sk_ASN1_TYPE_new_null()) == NULL) goto err; 131 if ((val=ASN1_TYPE_new()) == NULL) goto err; 132 if (!sk_ASN1_TYPE_push(ret->value.set,val)) goto err; 133 134 ASN1_TYPE_set(val,atrtype,value); 135 return(ret); 136 err: 137 if (ret != NULL) X509_ATTRIBUTE_free(ret); 138 if (val != NULL) ASN1_TYPE_free(val); 139 return(NULL); 140 } 141 142 X509_ATTRIBUTE *X509_ATTRIBUTE_new(void) 143 { 144 X509_ATTRIBUTE *ret=NULL; 145 ASN1_CTX c; 146 147 M_ASN1_New_Malloc(ret,X509_ATTRIBUTE); 148 ret->object=OBJ_nid2obj(NID_undef); 149 ret->set=0; 150 ret->value.ptr=NULL; 151 return(ret); 152 M_ASN1_New_Error(ASN1_F_X509_ATTRIBUTE_NEW); 153 } 154 155 void X509_ATTRIBUTE_free(X509_ATTRIBUTE *a) 156 { 157 if (a == NULL) return; 158 ASN1_OBJECT_free(a->object); 159 if (a->set) 160 sk_ASN1_TYPE_pop_free(a->value.set,ASN1_TYPE_free); 161 else 162 ASN1_TYPE_free(a->value.single); 163 OPENSSL_free(a); 164 } 165 166