void* TCP_await_JOIN(void* data) {
  PDU_PJOIN *pjoin = NULL;
  packet* pkt;
  CLIENT *c_stru = (CLIENT*)data;
  pkt = rcv_TCP_msg(*c_stru->socket);
  if(pkt==NULL || check_datatype(pkt->data)!=JOIN) {
    printf("SERVER: Tog bort socket %d (await client)\n",*c_stru->socket);
    return NULL;
  } else {
    PDU_JOIN *join = (PDU_JOIN*)pkt->data;
    deserialize(join);
    if(join->ID_length>0 && join->ID!=NULL) {
      queue_enqueue(c_stru->frwrd_queue, c_stru);
      global_clientnum++;

      c_stru->info = join;
      int len=0;
      char* partic_str = create_PARTICIPANTS_STR(c_stru->frwrd_queue,&len);
      if(partic_str!=NULL) {
        PDU_PARTICIPANTS *plist = create_PDU_PARTICIPANTS(global_clientnum,len,partic_str);
        //Calculating len of participants including wordpad
        if(len%WORD == 0) len+=WORD;
        else len+= WORD-(len%WORD);
        send_TCP_msg(*c_stru->socket,plist,(HEADER+len));
      }
      free(partic_str);
      pjoin = create_PDU_PJOIN((unsigned)time(NULL),join->ID);
      serialize(pjoin);
    }
  }
  return pjoin;
}


char* create_PARTICIPANTS_STR(queue* que, int *idlen) {
  char* str;
  char buf[BUFSIZE];
  int len;
  CLIENT* stop = NULL;
  queue* q = que;
  if(!queue_isEmpty(q))  {
    stop = queue_front(q);
    strcpy(buf,stop->info->ID);
    len=stop->info->ID_length + 1;
    queue_dequeue(q);
    queue_enqueue(q,stop);
    while(queue_front(q)!=stop) {
      CLIENT* val = queue_front(q);
      int i;
      for(i=0;i<val->info->ID_length;i++){
        buf[len+i] = val->info->ID[i];
      }
      //strncat(buf+len,val->info->ID,val->info->ID_length);
      len+=val->info->ID_length+1;
      queue_dequeue(q);
      queue_enqueue(q,val);
    }
    str=malloc(len);
    memcpy(str,buf,len);
    *idlen=len;
    return str;
  }
  return NULL;
}