systest2.c

unix高级编程源代码.<<unix高级编程>>

#include	<sys/types.h>
#include	<signal.h>
#include	"ourhdr.h"

static void	sig_int(int), sig_chld(int);

int
main(void)
{
	int		status;

	if (signal(SIGINT, sig_int) == SIG_ERR)
		err_sys("signal(SIGINT) error");
	if (signal(SIGCHLD, sig_chld) == SIG_ERR)
		err_sys("signal(SIGCHLD) error");

	if ( (status = system("/bin/ed")) < 0)
		err_sys("system() error");
	exit(0);
}

static void
sig_int(int signo)
{
	printf("caught SIGINT\n");
	return;
}

static void
sig_chld(int signo)
{
	printf("caught SIGCHLD\n");
	return;
}