#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/ptrace.h>

int
main(int argc, char *argv[]) {

        pid_t pid;

        pid = (int)strtol(argv[1], 0, 10);

        printf("Attaching to PID %d\n", pid);
        if (ptrace(PT_ATTACH, pid, 0,0) < 0) {
                perror("ptrace");
                exit(EXIT_FAILURE);
        }

        printf("Detaching from PID %d\n", pid);
        if (ptrace(PT_DETACH, pid, 0,0) < 0) {
                perror("ptrace");
                exit(EXIT_FAILURE);
        }


        return 0;
}