#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/wait.h>

pid_t pid;
_Bool timeout = 0;

void handle_sig(int signum, siginfo_t *info, void *ucontext)
{
    if(info->si_code == CLD_EXITED)
    {
        printf("ok\n");
        fflush(stdout);
        exit(0);
    }
    if(info->si_code == CLD_KILLED && timeout == 0)
    {
        printf("signaled\n");
        fflush(stdout);
        exit(1);
    }
}

int main(int argc, char *argv[])
{
    pid = fork();
    if(pid == 0)
    {
        char **args = argv + 2;
        execvp(argv[2], args);
    }
    else
    {
        struct sigaction action_sig;
        memset(&action_sig, 0, sizeof(action_sig));
        action_sig.sa_sigaction = handle_sig;
        action_sig.sa_flags = SA_SIGINFO;
        sigaction(SIGCHLD, &action_sig, NULL);

        if(atoi(argv[1]) == 0)
        {
            kill(getpid(), SIGALRM);
        }

        sleep(atoi(argv[1]));
        timeout = 1;
        kill(pid, SIGTERM);
        waitpid(pid, 0, 0);
        printf("timeout\n");
        fflush(stdout);
        exit(2);
    }
}