/*
 * This program has two big bugs:
 * 1. We use an automatic variable, r, in create_record
 *    which allocates r on the call stack.  The create_record
 *    function returns a pointer to that data, but it points
 *    into a stack frame that no longer exists, which is a bug.
 *
 * 2. The arguments to create_record are pointers to strings,
 *    but the fields of the struct are not pointers: they're
 *    arrays.  This is a type error.  Go ahead, try to compile
 *    and see what you get.
 */

#include <stdio.h>

typedef struct record {
  char first_name[20];
  char last_name[20];
  char identifier[20];
} record_t;

record_t* create_record(char* fname, char* lname, char* id) {
  record_t r;
  r.first_name = fname;
  r.last_name = lname;
  r.identifier = id;
  return &r;
}

int main() {
  record_t* r = create_record("Jason", "Bourne", "70014051");
  printf("First name: %s\n", r->first_name);
  printf("Last name: %s\n", r->last_name);
  printf("Identifier: %s\n", r->identifier);
  
  return 0;
}