[lwip-users] may be is bug in lwip1.3.0

[xcbman]

i find some point,may be bug, in testing lwip1.3.0,hope useful to everybody.

 

1. ppp.c ->pppClose()

 

  if(!pc->linkStatusCB) {
    while(st >= 0 && lcp_phase[pd] != PHASE_DEAD) {
      sys_msleep(500);
      //break; //remove to resolve pppclose immediatly return ,may be is a lwip bug.
    }
  }

 

2. sockets.c ->lwip_recvfrom()

 

      if (!buf) {
        /* We should really do some error checking here. */
        LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): buf == NULL!\n", s));
  if(sock->conn==NULL)    //add : close(sock)=>free(sock->conn)=>netconn_recv() return 0;
   sock_set_errno(sock,ERR_CLSD); //add
  else
   sock_set_errno(sock, (((sock->conn->pcb.ip!=NULL) && (sock->conn->err==ERR_OK))?ETIMEDOUT:err_to_errno(sock->conn->err)));
  return 0;
      }