#include

#include

#include

#include

int main()

{

pid_t pid;

pid = fork();

if (pid < 0) { /* error occurred */

fprintf(stderr, "Fork failed. ");

return 1;

}

else if (pid == 0) { /* child process */

sleep(30);

execl("./long1", "long1", NULL);

}

else {

wait(0);

printf("Parent says: child has exited. ");

}

return 0;

}

Modify the program so that this program becomes the orphan