116 lines
2.9 KiB
C
116 lines
2.9 KiB
C
/*
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* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stdio.h>
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#include "internal/cryptlib.h"
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#include <openssl/asn1.h>
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#include <openssl/asn1t.h>
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int ASN1_TYPE_set_octetstring(ASN1_TYPE *a, unsigned char *data, int len)
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{
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ASN1_STRING *os;
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if ((os = ASN1_OCTET_STRING_new()) == NULL)
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return 0;
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if (!ASN1_OCTET_STRING_set(os, data, len)) {
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ASN1_OCTET_STRING_free(os);
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return 0;
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}
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ASN1_TYPE_set(a, V_ASN1_OCTET_STRING, os);
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return 1;
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}
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/* int max_len: for returned value */
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int ASN1_TYPE_get_octetstring(const ASN1_TYPE *a, unsigned char *data, int max_len)
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{
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int ret, num;
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const unsigned char *p;
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if ((a->type != V_ASN1_OCTET_STRING) || (a->value.octet_string == NULL)) {
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ASN1err(ASN1_F_ASN1_TYPE_GET_OCTETSTRING, ASN1_R_DATA_IS_WRONG);
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return -1;
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}
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p = ASN1_STRING_get0_data(a->value.octet_string);
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ret = ASN1_STRING_length(a->value.octet_string);
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if (ret < max_len)
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num = ret;
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else
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num = max_len;
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memcpy(data, p, num);
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return ret;
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}
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typedef struct {
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int32_t num;
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ASN1_OCTET_STRING *oct;
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} asn1_int_oct;
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ASN1_SEQUENCE(asn1_int_oct) = {
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ASN1_EMBED(asn1_int_oct, num, INT32),
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ASN1_SIMPLE(asn1_int_oct, oct, ASN1_OCTET_STRING)
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} static_ASN1_SEQUENCE_END(asn1_int_oct)
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DECLARE_ASN1_ITEM(asn1_int_oct)
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int ASN1_TYPE_set_int_octetstring(ASN1_TYPE *a, long num, unsigned char *data,
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int len)
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{
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asn1_int_oct atmp;
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ASN1_OCTET_STRING oct;
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atmp.num = num;
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atmp.oct = &oct;
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oct.data = data;
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oct.type = V_ASN1_OCTET_STRING;
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oct.length = len;
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oct.flags = 0;
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if (ASN1_TYPE_pack_sequence(ASN1_ITEM_rptr(asn1_int_oct), &atmp, &a))
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return 1;
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return 0;
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}
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/*
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* we return the actual length...
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*/
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/* int max_len: for returned value */
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int ASN1_TYPE_get_int_octetstring(const ASN1_TYPE *a, long *num,
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unsigned char *data, int max_len)
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{
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asn1_int_oct *atmp = NULL;
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int ret = -1, n;
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if ((a->type != V_ASN1_SEQUENCE) || (a->value.sequence == NULL)) {
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goto err;
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}
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atmp = ASN1_TYPE_unpack_sequence(ASN1_ITEM_rptr(asn1_int_oct), a);
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if (atmp == NULL)
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goto err;
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if (num != NULL)
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*num = atmp->num;
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ret = ASN1_STRING_length(atmp->oct);
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if (max_len > ret)
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n = ret;
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else
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n = max_len;
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if (data != NULL)
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memcpy(data, ASN1_STRING_get0_data(atmp->oct), n);
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if (ret == -1) {
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err:
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ASN1err(ASN1_F_ASN1_TYPE_GET_INT_OCTETSTRING, ASN1_R_DATA_IS_WRONG);
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}
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M_ASN1_free_of(atmp, asn1_int_oct);
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return ret;
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}
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