Arduino RFID Ethernet junk

gistfile1.c

#include <SPI.h>
#include <Ethernet.h>
#include <SoftwareSerial.h>

SoftwareSerial mySerial(8, 9);
byte mac[] = {   0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x88 };
IPAddress server(91,123,198,230); // Google
int port = 80;
EthernetClient client;
int sent = 0;

void setup() {
  Serial.begin(9600);
  mySerial.begin(9600);
  Serial.println("begin...");
  // Ethernet.begin(mac, ip);
  if (Ethernet.begin(mac) == 0) {
    Serial.println("Failed to configure Ethernet using DHCP");
    for(;;);
  }
  Serial.print("My IP address: ");
  for (byte thisByte = 0; thisByte < 4; thisByte++) {
    Serial.print(Ethernet.localIP()[thisByte], DEC);
    Serial.print("."); 
  }
  Serial.println();
  delay(1000);
  Serial.println("connecting...");
}

char buf[100] = { 0, };
int bwp = 0;

void tellServer() {
  Serial.println("send request...");
  sent = 1;
  client.stop();
  if (client.connect(server, port)) {
    Serial.println("connected, send request...");
    client.print("GET /rfid.php?rfid=");
    client.print(buf);
    client.println(" HTTP/1.0");
    client.println("Host: www.on-axis.com");
    client.println();
  } 
  else {
    // kf you didn't get a connection to the server:
    Serial.println("connection failed");
  }
  Serial.println("efter.");
}

void loop() {
  if (mySerial.available()) {
    char c = mySerial.read();
    if( c == '\n' ) {
      Serial.print("GOT KEY: [");
      Serial.print(buf);
      Serial.println("]\n");
      tellServer();
      memset(buf, 0, 100); 
      bwp = 0;
    } else {
      if((c >='0' && c <= '9') || (c >= 'A' && c <= 'F')) { 
        if (bwp < 50) buf[bwp] = c;
        bwp ++;
      }
    }
  }
  
  if(sent) {
    if (client.available()) {
      char c = client.read();
      Serial.print(c);
    }
    if (!client.connected()) {
      client.stop();
    }
    sent = 0;
  }
}