通过Socket的C信号（信号管，叹气）

Question

I've to handle the SIGHUP and the SIGPIPE signal in order to avoid that a CLIENT, connected via Socket TCP, closing the terminal (The [X] of the GUI) hadn't to close or crash the SERVER.

I've set on the client a sigup handler like this

void sighup()
{
  signal(SIGHUP, SIG_IGN);
  system("echo SIGHUP received>>log.txt");
  close(socket);
  exit(0);
}

On the server I've set a SIGPIPE handler like this

signal(SIGPIPE,SIG_IGN); 

but, if the client close the windows of the terminal, the server loops.

Any idea? Thank you anyway for support

Answer 1

I did a mistake and I will put all check all write and read istructions with perror. But, anyway, is that the right way to handle the situation?

Ignoring SIGPIPE is viable. Alternatively you could prevent the generation of SIGPIPE by giving the MSG_NOSIGNAL flag to send() .