System_Software_HandsOnList2/012.c at main · superv13/System_Software_HandsOnList2 · GitHub

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/*
..........................................................................................................................................
Name : 012.c
Author : SHRUTI VERMA
Description : Write a program to create an orphan process. Use kill system call to send SIGKILL signal to
                the parent process from the child process
Date : 20 Sep 2025
..........................................................................................................................................
*/

#include<unistd.h>
#include<stdio.h>
#include<stdlib.h>
#include<signal.h>

int main() {

    if(!fork()) {
        sleep(5);
        printf("child process : %d\n", getpid());
        kill(getppid(), SIGKILL);
        printf("killed the parent\n");

    } else {
        printf("parent process : %d\n", getpid());
        sleep(15);
    }
    return 0;
}

/*----------------------------------OUTPUT----------------------------------------------------------------
parent process : 13078
child process : 13079
killed the parent
Killed
*/