/* 
 * This is taken from p. 190 of Stevens
 * 
 * Example of fork function
 */
#include <sys/types.h>
#include "ourhdr.h"

int   myGlob = 6;   /* external variable in initialized data */
char  buf[] = "a write to stdout\n";

int main(void)
{
    int    var;     /* automatic variable on the stack */
    pid_t  pid;

    var = 88;
    if (write(STDOUT_FILENO,  buf, sizeof(buf)-1) != sizeof(buf)-1)
        err_sys("write error");
    printf("before fork\n");      /* we don't flush stdout */

    if ( (pid = fork()) < 0)
        err_sys("fork error");
    else if (pid == 0) {          /* child */
        myGlob++;                 /* modify variables */
        var++;
    } else 
        sleep(2);                 /* parent */

    printf("pid = %d, myGlob = %d, var = %d\n", getpid(), myGlob, var);
    exit(0);
}