Declaring variable "action" without initializer.
  212    struct sigaction action, old_action;

  275    /* Reap the children in a handler asynchronously so we can
  276     * somehow protect against too many processes */
  277    action.sa_handler = child_handler;
  278    sigemptyset(&action.sa_mask);
  279    sigaddset(&action.sa_mask, SIGCHLD);
  280    action.sa_flags = SA_NOCLDSTOP;
  281
Using uninitialized value "action": field "action".sa_restorer is uninitialized when calling "sigaction".
  282    sigaction(SIGCHLD, &action, &old_action);