exit(EXIT_FAILURE);
}
if (cpid == 0) { /*Code executed by child */
printf("Child PID is%ld\n", (long) getpid());
if (argc == 1)
pause(); /* Wait for signals */
_exit(atoi(argv[1]));
} else { /*Code executed by parent */
do {
w = waitpid(cpid,&status, WUNTRACED | WCONTINUED);
if (w == -1) {
perror("waitpid");
exit(EXIT_FAILURE);
}
if (WIFEXITED(status)) {
printf("exited,status=%d\n", WEXITSTATUS(status));
} else if(WIFSIGNALED(status)) {
printf("killed by signal%d\n", WTERMSIG(status));
} else if(WIFSTOPPED(status)) {
printf("stopped bysignal %d\n", WSTOPSIG(status));
} else if(WIFCONTINUED(status)) {
printf("continued\n");
}
} while (!WIFEXITED(status)&& !WIFSIGNALED(status));
exit(EXIT_SUCCESS);
}
}