EBK COMPUTER SYSTEMS
EBK COMPUTER SYSTEMS
3rd Edition
ISBN: 8220101459107
Author: O'HALLARON
Publisher: YUZU
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Chapter 8, Problem 8.17HW
Program Plan Intro

Given code:

//Include necessary header files

#include <stdio.h>

#include "csapp.h"

//Define a main function

int main()

{

//Variable declaration

  int status;

  pid_t pid;

  //Print the statement

  printf("Hello\n");

  //Call the method fork() and assign it to the variable pid

  pid = fork();

  //Print the statement

  printf("%d\n",!pid);

  //Check, pid is not equal to zero

  if (pid != 0)

  {

    //True, check the condition

    if (waitpid(-1, &status, 0) > 0)

     {

       //True, check the condition

      if (WIFEXITED(status) != 0)

        //True, print the statement

        printf("%d\n" , WEXITSTATUS(status));

    }

  }

 //Otherwise, print the statement

 printf("Bye\n");

 //Exit

 exit(2);

}

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