ask: communication arduino with tcp winsock!!!!!!!!111

all my dear friends
help me
i get code

// Command:   X  F  B  L  R  FR    FL    BR   BL    H
// PORT_map:  -  1  2  4  8   9     5    10   6     16 (PORTB HEX)
// Received:  0  1  2  3  4   5     6    7    8     9  (from router)
// Pin        -  8  9  10 11  811   810  911  910   12

unsigned char port_map[10]={0,1,2,4,8,9,5,10,6,16};
unsigned int in_char;
unsigned long counter=0;
unsigned char in_byte=0;
unsigned int test=0;
void setup()
{
DDRB=B11111111; //PORTB as OUTPUT
Serial.begin(9600); //Start Serial
} char recv_char()
{
while (counter < 15000) //Pulse of command
{
counter++;
if (Serial.available() > 0)
{
in_byte = Serial.read();
test=(int)in_byte-48;
Serial.print(test);
counter = 0;
return test;
            }
}
counter=0;
return 0;
} void loop()
{
in_char=recv_char();
PORTB=port_map[in_char]; //Port map
}

my goal to communication arduino and tcp socket linksys ddwrt to control motor dc
looks like well … but i can control device correct…
what is that corrcetlly code … or … i have some missing code … to communication well drive motor dc

Crossposting, please don't do that ...