1 | /*
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2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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3 | *
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4 | * Licensed under the OpenSSL license (the "License"). You may not use
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5 | * this file except in compliance with the License. You can obtain a copy
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6 | * in the file LICENSE in the source distribution or at
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7 | * https://www.openssl.org/source/license.html
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8 | */
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9 |
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10 | #include <stdio.h>
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11 | #include "internal/cryptlib.h"
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12 | #include <openssl/asn1t.h>
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13 | #include <openssl/objects.h>
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14 | #include "asn1_locl.h"
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15 |
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16 | int ASN1_TYPE_get(const ASN1_TYPE *a)
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17 | {
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18 | if ((a->value.ptr != NULL) || (a->type == V_ASN1_NULL))
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19 | return (a->type);
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20 | else
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21 | return (0);
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22 | }
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23 |
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24 | void ASN1_TYPE_set(ASN1_TYPE *a, int type, void *value)
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25 | {
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26 | if (a->value.ptr != NULL) {
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27 | ASN1_TYPE **tmp_a = &a;
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28 | asn1_primitive_free((ASN1_VALUE **)tmp_a, NULL, 0);
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29 | }
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30 | a->type = type;
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31 | if (type == V_ASN1_BOOLEAN)
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32 | a->value.boolean = value ? 0xff : 0;
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33 | else
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34 | a->value.ptr = value;
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35 | }
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36 |
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37 | int ASN1_TYPE_set1(ASN1_TYPE *a, int type, const void *value)
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38 | {
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39 | if (!value || (type == V_ASN1_BOOLEAN)) {
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40 | void *p = (void *)value;
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41 | ASN1_TYPE_set(a, type, p);
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42 | } else if (type == V_ASN1_OBJECT) {
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43 | ASN1_OBJECT *odup;
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44 | odup = OBJ_dup(value);
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45 | if (!odup)
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46 | return 0;
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47 | ASN1_TYPE_set(a, type, odup);
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48 | } else {
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49 | ASN1_STRING *sdup;
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50 | sdup = ASN1_STRING_dup(value);
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51 | if (!sdup)
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52 | return 0;
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53 | ASN1_TYPE_set(a, type, sdup);
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54 | }
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55 | return 1;
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56 | }
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57 |
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58 | /* Returns 0 if they are equal, != 0 otherwise. */
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59 | int ASN1_TYPE_cmp(const ASN1_TYPE *a, const ASN1_TYPE *b)
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60 | {
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61 | int result = -1;
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62 |
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63 | if (!a || !b || a->type != b->type)
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64 | return -1;
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65 |
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66 | switch (a->type) {
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67 | case V_ASN1_OBJECT:
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68 | result = OBJ_cmp(a->value.object, b->value.object);
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69 | break;
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70 | case V_ASN1_BOOLEAN:
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71 | result = a->value.boolean - b->value.boolean;
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72 | break;
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73 | case V_ASN1_NULL:
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74 | result = 0; /* They do not have content. */
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75 | break;
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76 | case V_ASN1_INTEGER:
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77 | case V_ASN1_ENUMERATED:
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78 | case V_ASN1_BIT_STRING:
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79 | case V_ASN1_OCTET_STRING:
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80 | case V_ASN1_SEQUENCE:
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81 | case V_ASN1_SET:
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82 | case V_ASN1_NUMERICSTRING:
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83 | case V_ASN1_PRINTABLESTRING:
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84 | case V_ASN1_T61STRING:
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85 | case V_ASN1_VIDEOTEXSTRING:
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86 | case V_ASN1_IA5STRING:
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87 | case V_ASN1_UTCTIME:
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88 | case V_ASN1_GENERALIZEDTIME:
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89 | case V_ASN1_GRAPHICSTRING:
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90 | case V_ASN1_VISIBLESTRING:
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91 | case V_ASN1_GENERALSTRING:
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92 | case V_ASN1_UNIVERSALSTRING:
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93 | case V_ASN1_BMPSTRING:
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94 | case V_ASN1_UTF8STRING:
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95 | case V_ASN1_OTHER:
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96 | default:
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97 | result = ASN1_STRING_cmp((ASN1_STRING *)a->value.ptr,
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98 | (ASN1_STRING *)b->value.ptr);
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99 | break;
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100 | }
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101 |
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102 | return result;
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103 | }
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104 |
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105 | ASN1_TYPE *ASN1_TYPE_pack_sequence(const ASN1_ITEM *it, void *s, ASN1_TYPE **t)
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106 | {
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107 | ASN1_OCTET_STRING *oct;
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108 | ASN1_TYPE *rt;
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109 |
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110 | oct = ASN1_item_pack(s, it, NULL);
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111 | if (oct == NULL)
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112 | return NULL;
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113 |
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114 | if (t && *t) {
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115 | rt = *t;
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116 | } else {
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117 | rt = ASN1_TYPE_new();
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118 | if (rt == NULL) {
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119 | ASN1_OCTET_STRING_free(oct);
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120 | return NULL;
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121 | }
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122 | if (t)
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123 | *t = rt;
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124 | }
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125 | ASN1_TYPE_set(rt, V_ASN1_SEQUENCE, oct);
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126 | return rt;
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127 | }
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128 |
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129 | void *ASN1_TYPE_unpack_sequence(const ASN1_ITEM *it, const ASN1_TYPE *t)
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130 | {
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131 | if (t == NULL || t->type != V_ASN1_SEQUENCE || t->value.sequence == NULL)
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132 | return NULL;
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133 | return ASN1_item_unpack(t->value.sequence, it);
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134 | }
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