/*
 * Copyright (C) 2020
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

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

void main(int argc, char *argv[])
{
  char buffer[MAX_CANON];
  char* c;
  int i;
  int n;
  pid_t childpid;

  c = malloc(200*sizeof(char));
  //c[3] = 'A';

  if (childpid = fork()) {
    c[3] = 'A';
    printf("PARENT: c=0x%x ,  c[3] = %c\n", c, c[3]);
    c[3] = 'B';
  } else {
    c[3] = 'C';
    printf("CHILD: c=0x%x ,  c[3] = %c\n", c, c[3]);
  }

  sleep(1);

  if (childpid)
    printf("PARENT: c=0x%x ,  c[3] = %c\n", c, c[3]);
  else {
    printf("CHILD: c=0x%x ,  c[3] = %c\n", c, c[3]);
  }
}