send.c

#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <string.h>

int main(int argc, char *argv[]) {
  printf("hello\n"); 
  
  int ConnectionSocket, CounterRegister;
  time_t t, tNext;
  unsigned char Packet[4];
  int clientSocket;
  char buffer[1024];
  struct sockaddr_in serverAddr;
  socklen_t addr_size;

  Packet[0] = 0x0F;
  Packet[1] = 0x5F;
  Packet[2] = 0xB0;
  Packet[3] = 0xDF;

  clientSocket = socket(PF_INET, SOCK_STREAM, 0);
  serverAddr.sin_family = AF_INET;
  serverAddr.sin_port = htons(19806);
  serverAddr.sin_addr.s_addr = inet_addr("127.0.0.1");
  memset(serverAddr.sin_zero, '\0', sizeof serverAddr.sin_zero);  
  addr_size = sizeof serverAddr;
  connect(clientSocket, (struct sockaddr *) &serverAddr, addr_size);
  
  send (clientSocket, Packet, 4, 0);
  printf("done\n");
}