#include<stdio.h>
#include<sys/stat.h>
#include<fcntl.h>

int main(int argc, char** argv)
{
  if(argc != 3)
    {
      printf("%s [source] [destination]\n", argv[0]);
      exit(1);
    }

  int fdsource;
  fdsource = open(argv[1], O_RDONLY);
  if(fdsource == -1)
    {
      printf("%s is on fire\n", argv[1]);
      exit(1);
    }

  int fddest;
  fddest = creat(argv[2], 0644);
  if(fddest == -1)
    {
      printf("%s is sinking\n", argv[2]);
      exit(1);
    }
  
  char c;
  while(read(fdsource, &c, 1) > 0)
    {
      write(fddest, &c, 1);
    }

  close(fdsource);
  close(fddest);
  
  return 0;
}