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

int print_val(const char * filename)
{
  int err;

  err = open(filename, O_RDONLY, 0);
  printf("err = %d\n", err);
  printf("filename = %s\n", filename);
}

int main(int argc, char ** argv)
{
  print_val(argv[1]);
}