<c언어> malloc이 처음에만 돌아가고 나중에는 안돌아가네요ㅠㅠ

#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include <stdlib.h>
typedef struct test* ptest;
typedef struct test {
	char name;
	int data;
	ptest link;
}test;
FILE *fp;
void input(ptest*, ptest*);
 
int main()
{
	char str[20];
	ptest head, curr;
	int i = 0;
	fp = fopen("test.txt", "r");
	fscanf(fp, "%s\n", str);
	//head = (ptest)malloc(sizeof(ptest));
	//head->link = NULL;
 
	while (!feof(fp))
	{
		input(&head, &curr);
		i++;
	}
	return 0;
}
 
void input(ptest *head, ptest *curr)
{
	static int i = 0;
	ptest temp;
	temp=(ptest)malloc(sizeof(ptest));
	temp->link = NULL;
	fscanf(fp, "%c %d\n", &(temp->name), &(temp->data));
 
	if (i==0)
	{
		*head = temp;
		*curr = temp;
		i++;
	}
	else
	{
		(*curr)->link = temp;
		*curr = (*curr)->link;
	}
}