/* MD2 block update operation. Continues an MD2 message-digest
operation, processing another message block, and updating the
context.
*/
void
MD2Update (MD2_CTX *context, const void *in, unsigned int inputLen)
{
unsigned int i, idx, partLen;
const unsigned char *input = in;
/* Update number of bytes mod 16 */
idx = context->count;
context->count = (idx + inputLen) & 0xf;
partLen = 16 - idx;
/* Transform as many times as possible.
*/
if (inputLen >= partLen) {
memcpy
((POINTER)&context->buffer[idx], (POINTER)input, partLen);
MD2Transform (context->state, context->checksum, context->buffer);
for (i = partLen; i + 15 < inputLen; i += 16)
MD2Transform (context->state, context->checksum, &input[i]);
idx = 0;
}
else
i = 0;
/* Buffer remaining input */
memcpy
((POINTER)&context->buffer[idx], (POINTER)&input[i],
inputLen-i);
}
/* MD2 block update operation. Continues an MD2 message-digest
operation, processing another message block, and updating the
context.
*/
void MD2Update (MD2_CTX *context, /* context */
unsigned char *input, /* input block */
unsigned int inputLen) /* length of input block */
{
unsigned int i, index, partLen;
/* Update number of bytes mod 16 */
index = context->count;
context->count = (index + inputLen) & 0xf;
partLen = 16 - index;
/* Transform as many times as possible.
*/
if (inputLen >= partLen) {
MD2_memcpy
((POINTER)&context->buffer[index], (POINTER)input, partLen);
MD2Transform (context->state, context->checksum, context->buffer);
for (i = partLen; i + 15 < inputLen; i += 16)
MD2Transform (context->state, context->checksum, &input[i]);
index = 0;
}
else
i = 0;
/* Buffer remaining input */
MD2_memcpy
((POINTER)&context->buffer[index], (POINTER)&input[i],
inputLen-i);
}
