#include "list.h"

void list_init(struct list_t *list)
{
    list->data = 0;
    list->next = NULL;
}

void list_add(struct list_t *list, uint8_t data)
{
    struct list_t *p = NULL;
    p = list;
    while (p->next != NULL)
    {
        p = p->next;
        if (p->data == data)
        {
            return;
        }
    }
    p->next = (struct list_t *)malloc(sizeof(struct list_t));
    p->next->data = data;
    p->next->next = NULL;
    return;
}

void list_print(struct list_t *list)
{
    struct list_t *p = NULL;
    p = list;
    while (p->next != NULL)
    {
        printf("%02d ", p->data);
        p = p->next;
        if (p->next == NULL)
        {
            printf("%02d\n", p->data);
            break;
        }
    }
}

void list_free(struct list_t *list)
{
    struct list_t *p = NULL;
    p = list;
    while (p->next != NULL)
    {
        p = p->next;
        free(p->next);
        p->next = NULL;
        if (p->next == NULL)
        {
            break;
        }
    }
}