//int Connect(e){
// return sockfd
int Connect(char* tgt_ip_addr, int portNum){
destPort = portNum;
srand((unsigned)time(NULL));
srcPort = 1000 + rand()%63535;
sock2send = createRaw(IPPROTO_RAW);
sock2recv = createRaw(IPPROTO_TCP);
char **pptr = NULL;
unsigned int OPTION_SIZE = 20;
memset(datagram,0,4096);
iph = (struct iphdr *) datagram;
tcph = (struct TCP_header *) (datagram + sizeof(struct ip));
struct hostent *host = NULL;
buf = malloc(1024);
send_addr.sin_family = AF_INET;
send_addr.sin_port = htons(destPort);
send_addr.sin_addr.s_addr = inet_addr(tgt_ip_addr);
look_for_local_ip(srcaddr);
printf("Local IP Address:\t%s\n",srcaddr);
// ip headG
iph->ihl = 5;
iph->version = 4;
iph->tos = 0;
iph->tot_len = sizeof(struct iphdr) + sizeof(struct TCP_header);
iph->id = htonl(54321);
iph->frag_off = 0;
iph->ttl = 60;
iph->protocol = IPPROTO_TCP;
iph->check = 0;
iph->saddr = inet_addr(srcaddr);
iph->daddr = send_addr.sin_addr.s_addr;
iph->check = csum((unsigned short*)datagram, iph->tot_len);
three_hand_shake(sock2send,sock2recv,datagram,send_addr);
return sock2recv;
}
/*
Creational method
@return fully constructed MDHistoDimension instance wrapped in a boost shared
pointer.
*/
IMDDimension_sptr MDHistoDimensionBuilder::create() {
return IMDDimension_sptr(createRaw());
}