/*
 * This program fixes the buggy program by allocating the
 * struct manually.  Don't forget to free!
 *
 * We also use strcpy to copy the strings, since assignment
 * using = in this context would only copy pointers.  Note:
 * strcpy is a dangerous function!
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.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 = malloc(sizeof(record_t));  // if we malloc, we must free
  if (!r) {
    fprintf(stderr, "Unable to allocate record.\n");
    exit(1);
  }

  strcpy(r->first_name, fname);
  strcpy(r->last_name, lname);
  strcpy(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);
  free(r); // free down here, when we're done
  return 0;
}