лабораторки по ОС препод Челноков / 2семестр / wi2 / morsin / 2sem / os / 1 / buf / main

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/user.h>
#include <unistd.h>

int  main()
{
int f1,f2,status1,status2;

switch(f1=fork())
{
case -1: 
printf("can not fork\n");
exit (1);
case 0:
/**/
printf("I am the child \nMy pid is %d\n\n",getpid());
switch(f2=fork())
{
case -1:
 printf("can not fork \n");
 exit (1);
case  0:
/**/
printf("I am the grand child\nMy pid is %d\n",getpid());
exit(1);
break;
default: 
wait(&status2);
break;
}
default: wait(&status1);
printf(  "exit value %d\n ",status1 >>8 );
printf("exit status %d\n ",status1 &0377);
exit(0);
return(0);
}