вопрос по с++ Опции

[-Dima-]

Здравствуйте.
Прошу посмотреть следующую программу и сказать, как можно её изменить, чтобы считать строку >= 256 символов

#include <stdio.h>
#include <malloc.h>
#include <stdlib.h>
#include <string.h>

#define BUF 1024
typedef struct node {
	char* data;
	struct node* next;
} Node;

typedef struct list
{
	Node* root;
	size_t size;
} List;
int printList( List* list ) {
	Node* tmpList = list->root;
	printf("List:\n");
	
	if ( NULL == tmpList->next ) printf( "%s\n", "List is empty..."  );
	else { 
	tmpList = tmpList->next;
	while( NULL != tmpList  ) {
		printf( "%s", tmpList->data );
		tmpList = tmpList->next;
	}
	}
	return 0;
}
List* makeRoot( List* list ) {
	list = (List*)malloc(sizeof(List));
	list->root = (Node*)malloc(sizeof(List));
	list->root->next = NULL;
	list->root->data = NULL;
	list->size = 0;
			
	return list;
}

Node* makeElem(char * str)
{
	Node* node = NULL;
	size_t lenght = strlen(str);
	
	node = (Node*)malloc(sizeof(List));
	node->data = (char*)malloc(lenght*sizeof(char)+(size_t)1);
	node->data = strcpy(node->data, str);
		
	return node;
}
List* insert(char * str, List * list)
{
	Node* point = NULL;
	
	if(NULL == list->root->next) {
		list->root->next = makeElem(str);
	}
	else {
		for(point = list->root; point->next != NULL; point = point->next){}
	point->next = makeElem(str);
	
	}
	return list;
}
											
void deleteList( List* list ) {
  Node* point1 = list->root;
  Node* point2 = list->root;
  
  while( point2 ) {
	point1 = point2->next;
	free(point1->data);
	free(point1);
	point1 = point2;
  }
  free(list);
}

void getString( char* str ) {
	char c;
	int i = 0;
	while ( '\n' != c ) {
	c = getchar();
	str[i++] = c;
	}
}

void stringScanf( char* str ) {
	scanf(  "%s", str );
	str[ strlen(str) ] = '\n';
}

int main() {
	char str[BUF] = {0};
	size_t size = 0;
	
	List* list = NULL;
	
	list = makeRoot(list);
	//fgets(str, BUF, stdin);
	//getString( str  );
	stringScanf( str );
	while( '.' != str[0] ) {
	  list = insert(str, list);
	  //fgets(str, BUF, stdin);
	  //getString(str);
	  stringScanf( str );
	}
	printList(list);
	//deleteList(list);
	return 0;
}