Function md5_update

fceux-server/md5.cpp:187–222

}

void md5_update( struct md5_context *ctx, uint8 *input, uint32 length )
{
    uint32 left, fill;

    if( ! length ) return;

    left = ( ctx->total[0] >> 3 ) & 0x3F;
    fill = 64 - left;

    ctx->total[0] += length <<  3;
    ctx->total[1] += length >> 29;

    ctx->total[0] &= 0xFFFFFFFF;
    ctx->total[1] += ctx->total[0] < ( length << 3 );

    if( left && length >= fill )
    {
        memcpy( (void *) (ctx->buffer + left), (void *) input, fill );
        md5_process( ctx, ctx->buffer );
        length -= fill;
        input  += fill;
        left = 0;
    }

    while( length >= 64 )
    {
        md5_process( ctx, input );
        length -= 64;
        input  += 64;
    }

    if( length )
    {
        memcpy( (void *) (ctx->buffer + left), (void *) input, length );
    }
}

static uint8 md5_padding[64] =
{