排序链表插入

Question

我正在尝试创建一个基于两个变量进行排序插入的函数，首先是level（数字）＆amp; name（按字母顺序）。 显然我有一些逻辑错误。

我的链表结构：

struct node {
    struct node *next;
    int level;
    char *name;
};

我的字符串比较功能：

int compare(struct node *one, struct node *two)
{
    return strcmp(one->name, two->name);
}

我的插入功能：

void insert(struct node **head, const int level, char *name, int(*cmp)(struct node *l, struct node *r))
{
    struct node *new;
    new = malloc(sizeof *new);
    new->level = level;
    new->name = name;

    /* Find the insertion point */
    for (; *head != NULL; head = &(*head)->next)
    {
        if ((*head)->level > level) {
            if (cmp(*head, new) > 0)
            break;
        }
    }

    new->next = *head;
    *head = new;
}

示例输入：

insert(&root, 1, "A", compare);
insert(&root, 1, "C", compare);
insert(&root, 1, "B", compare);
insert(&root, 3, "B", compare); 
insert(&root, 2, "Z", compare);
insert(&root, 1, "A", compare);
insert(&root, 1, "C", compare);
insert(&root, 1, "B", compare);
insert(&root, 3, "B", compare);
insert(&root, 2, "Z", compare);

结果：

1       A
1       C
1       B
1       A
3       B
1       C
1       B
2       Z
3       B
2       Z