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

int main(int argc, char *argv[]) {
   char *matrix;
   int number_of_pages;
   unsigned long i, j, mem_size;


   if (argc != 2) {
      printf("\nSyntax: generate_process <number_of_pages>\n\n");
      exit(1);
   }

   number_of_pages = atoi(argv[1]);
   
   if (number_of_pages <= 0) {
      printf("\nInvalid number of pages!\n\n");
      exit(3);
   }

   mem_size = 4096 * number_of_pages;

   if (!(matrix = (char *)malloc(mem_size))) {
      printf("\nUnable to allocate %lu bytes! \n\n", mem_size);
      exit(2);
   }

   srand(time(NULL));

   for (i = 0; i < ULONG_MAX; i++) {
      for(j = 0; j < mem_size; j++) {
         matrix[j] = rand();
      }
   }

   free(matrix);

   return(0);
}