Сохранение структур "Студент" в файл. - C (СИ)

#include<io.h>
#include<conio.h>
#include<stdio.h>
#include<iostream.h>
#include<fcntl.h>
#include<sys/stat.h>
struct STUDENT
{char name[150];
 int rost,ves,god,rei;
 char pol[10];
 STUDENT *next;
};
/*STUDENT getStudent() {
  struct STUDENT newStudent;
  newStudent.next = NULL;
  return newStudent;
}*/
void main(void)
{clrscr();
 STUDENT a;char b;
 STUDENT *m;
 int i=1,k,f2;
 FILE * f1 = fopen("D:\f1.dat","w");
 metka:clrscr();
 printf("<<--- Vvedite informaciyu ob %i-om studente --->>\n",ftell(f1)/sizeof(a)+1);
 printf("FIO : ");
 gets(a.name);
 printf("Rost : ");
 scanf("%i",&a.rost);
 printf("Ves : ");
 scanf("%i",&a.ves);
 printf("God rojdeniya : ");
 scanf("%i",&a.god);
 printf("Pol M/W : ");
 scanf("%s",&a.pol);
 printf("Reiting : ");
 scanf("%i",&a.rei);
 fwrite(&a,sizeof(a),1,f1);
 printf("Vvesti eshe (Y/N) : ");
 b=getch();scanf("%c",b);
 if (b=='y') goto metka;
 k=ftell(f1)/sizeof(a);
 fclose(f1);
 f2=open("f1.dat",O_RDONLY);
 rewind(f1);
 
 for(i=0;i<k;i++)
 {
  m=&a;
  read(f2,m,sizeof(a));
  clrscr();
  printf("<<--- Student # %i --->>\n",i+1);
  printf("FIO : %s\n",a.name);
  printf("Rost : %i\n",a.rost);
  printf("Ves : %i\n",a.ves);
  printf("God rojdeniya : %i\n",a.god);
  printf("Pol : %i\n",a.pol);
  printf("reiting : %i\n",a.rei);
  getch();
 }
 
  fclose(f1);
}