Function 53, subfunction 3 - read byte from socket.
Parameters:
- eax = 53 - function number
- ebx = 3 - subfunction number
- ecx = socket handle
Returned value:
- if there is no read data: eax=0, bl=0,
other bytes of ebx are destroyed
- if there are read data: eax=number of rest bytes
(possibly 0), bl=read byte, other bytes of ebx are destroyed
Remarks:
- There is no checks for correctness.