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/*
* Copyright (c) 2003 - 2005 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "der_locl.h"
#include "heim_asn1.h"
RCSID("$Id: extra.c,v 1.5 2005/07/19 18:05:16 lha Exp $");
int
encode_heim_any(unsigned char *p, size_t len,
const heim_any *data, size_t *size)
{
if (data->length > len)
return ASN1_OVERFLOW;
p -= data->length;
len -= data->length;
memcpy (p+1, data->data, data->length);
*size = data->length;
return 0;
}
int
decode_heim_any(const unsigned char *p, size_t len,
heim_any *data, size_t *size)
{
size_t len_len, length, l;
Der_class thisclass;
Der_type thistype;
unsigned int thistag;
int e;
if (data == NULL && len == 0) { /* XXX tag less OPTIONAL */
*size = 0;
return 0;
}
e = der_get_tag (p, len, &thisclass, &thistype, &thistag, &l);
if (e) return e;
if (l > len)
return ASN1_OVERFLOW;
e = der_get_length(p + l, len - l, &length, &len_len);
if (e) return e;
if (length + len_len + l > len)
return ASN1_OVERFLOW;
if (data) { /* XXX hack to workaround tag less OPTIONAL data */
memset(data, 0, sizeof(*data));
data->data = malloc(length + len_len + l);
if (data->data == NULL)
return ENOMEM;
data->length = length + len_len + l;
memcpy(data->data, p, length + len_len + l);
}
if (size) *size = length + len_len + l;
return 0;
}
void
free_heim_any(heim_any *data)
{
free(data->data);
data->data = NULL;
}
size_t
length_heim_any(const heim_any *data)
{
return data->length;
}
int
copy_heim_any(const heim_any *from, heim_any *to)
{
to->data = malloc(from->length);
if (to->data == NULL && from->length != 0)
return ENOMEM;
memcpy(to->data, from->data, from->length);
to->length = from->length;
return 0;
}
int
encode_heim_any_set(unsigned char *p, size_t len,
const heim_any_set *data, size_t *size)
{
return encode_heim_any(p, len, data, size);
}
int
decode_heim_any_set(const unsigned char *p, size_t len,
heim_any_set *data, size_t *size)
{
memset(data, 0, sizeof(*data));
data->data = malloc(len);
if (data->data == NULL && len != 0)
return ENOMEM;
data->length = len;
memcpy(data->data, p, len);
if (size) *size = len;
return 0;
}
void
free_heim_any_set(heim_any_set *data)
{
free_heim_any(data);
}
size_t
length_heim_any_set(const heim_any *data)
{
return length_heim_any(data);
}
int
copy_heim_any_set(const heim_any_set *from, heim_any_set *to)
{
return copy_heim_any(from, to);
}
int
heim_any_cmp(const heim_any_set *p, const heim_any_set *q)
{
if (p->length != q->length)
return p->length - q->length;
return memcmp(p->data, q->data, p->length);
}
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