如何创建一个函数来读取字符串结构？

Question

我想创建一个函数来读取用C动态分配的字符串，但是程序会读取struct的两个字段。 T_magazzino nuova s​​truttura创建动态分配和char * s_gets读取字符串

char * s_gets(char * st, int n)
{
   char * ret_val;
   char * find;

   ret_val = fgets(st, n, stdin);

   if (ret_val)
   {
      find = strchr(st, '\n'); // look for newline
      if (find) // if the address is not NULL,
         *find = '\0'; // place a null character there
      else
         while (getchar() != '\n')
           continue; // dispose of rest of line
   }
   return ret_val;
}

t_magazzino *nuova_struttura(void)
{
   t_magazzino *a;
   a=(t_magazzino*)malloc(sizeof(t_magazzino));
   if(a==NULL)
   {
      puts("Errore");
      exit(1);
   }

void item(t_magazzino *a, FILE *f,int c)
{
   puts("Inserisci ID");
   scanf("%d",&a->id);
   puts("Inserisci cliente \n");
  scanf("%s",a->client);
   printf(" Inserire tipologia \n");
 scanf("%s",a->tiplogia);
}