int add char file struct info puipl FILE fopen file ab if printf Openi

int add(char *file)
{
    struct info puipl;
    FILE *f;
    f=fopen(file,"ab");
    if(!f)
       {
           printf("Opening Error\n");
           return 1;
       }

      system("cls");
      puipl=input_puipl();
      fwrite(&puipl,sizeof(puipl),1,f);
      fclose(f);
      return 0;
}