#include <signal.h> // Pels senyals

#include <string.h> // Pel memset

#include <assert.h>

void program_ignore_hup()

{

	struct sigaction my_action;

	int result;

	my_action.sa_handler = SIG_IGN;

	my_action.sa_flags = 0;

	memset(&my_action.sa_mask, 0, sizeof(my_action.sa_mask));

	result = sigaction(SIGHUP, &my_action, NULL);

	assert(result == 0);

}

void program_child_handler(void (*child_handler)(int))

{

	struct sigaction my_action;

	int result;

	my_action.sa_handler = child_handler;

	my_action.sa_flags = SA_NOCLDSTOP;

	memset(&my_action.sa_mask, 0, sizeof(my_action.sa_mask));

	result = sigaction(SIGCHLD, &my_action, NULL);

	assert(result == 0);

}

void program_handler(int signum, void (*handler)(int))

{

	struct sigaction my_action;

	int result;

	my_action.sa_handler = handler;

	my_action.sa_flags = 0;

	memset(&my_action.sa_mask, 0, sizeof(my_action.sa_mask));

	result = sigaction(signum, &my_action, NULL);

	assert(result == 0);

}