void blake256_update( state *S, const u8 *data, u64 datalen ) {
int left=S->buflen >> 3;
int fill=64 - left;
if( left && ( ((datalen >> 3) & 0x3F) >= fill ) ) {
memcpy( (void*) (S->buf + left), (void*) data, fill );
S->t[0] += 512;
if (S->t[0] == 0) S->t[1]++;
blake256_compress( S, S->buf );
data += fill;
datalen -= (fill << 3);
left = 0;
}
while( datalen >= 512 ) {
S->t[0] += 512;
if (S->t[0] == 0) S->t[1]++;
blake256_compress( S, data );
data += 64;
datalen -= 512;
}
if( datalen > 0 ) {
memcpy( (void*) (S->buf + left), (void*) data, datalen>>3 );
S->buflen = (left<<3) + datalen;
}
void blake256_update( state256 *S, const uint8_t *in, uint64_t inlen )
{
int left = S->buflen;
int fill = 64 - left;
/* data left and data received fill a block */
if( left && ( inlen >= fill ) )
{
memcpy( ( void * ) ( S->buf + left ), ( void * ) in, fill );
S->t[0] += 512;
if ( S->t[0] == 0 ) S->t[1]++;
blake256_compress( S, S->buf );
in += fill;
inlen -= fill;
left = 0;
}
/* compress blocks of data received */
while( inlen >= 64 )
{
S->t[0] += 512;
if ( S->t[0] == 0 ) S->t[1]++;
blake256_compress( S, in );
in += 64;
inlen -= 64;
}
/* store any data left */
if( inlen > 0 )
{
memcpy( ( void * ) ( S->buf + left ), \
( void * ) in, ( size_t ) inlen );
S->buflen = left + ( int )inlen;
}
else S->buflen = 0;
}
