좀비 프로세스 만들기

테스트를 위해 좀비 프로세스가 필요한 상황이였다.

 

 

코드

fine name : zombie.c

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
 
int main(void)
{
    pid_t pid;
    int status;
 
    if ((pid = fork()) < 0) {
        perror("fork");
        exit(1);
    }
 
    /* Child */
    if (pid == 0)
        exit(0);
 
    /* Parent
     * Gives you time to observe the zombie using ps(1) ... */
    sleep(100);
 
    /* ... and after that, parent wait(2)s its child's
     * exit status, and prints a relevant message. */
    pid = wait(&status);
    if (WIFEXITED(status))
        fprintf(stderr, "\n\t[%d]\tProcess %d exited with status %d.\n",
                (int) getpid(), pid, WEXITSTATUS(status));
 
    return 0;
}

 

 

빌드

# install build package
sudo apt-get install build-essential
 
# build
cc zombie.c -o zombie
 
# run
./zombie

 

 

참고

• https://stackoverflow.com/questions/25172425/create-zombie-process
• https://vitux.com/how-to-create-a-dummy-zombie-process-in-ubuntu/