#ifndef VSFTP_HASH_H#define VSFTP_HASH_Hstruct hash;typedef unsigned int (*hashfunc_t)(unsigned int, void*);struct hash* hash_alloc(unsigned int buckets, unsigned int key_size,                        unsigned int value_size, hashfunc_t hash_func);void* hash_lookup_entry(struct hash* p_hash, void* p_key);void hash_add_entry(struct hash* p_hash, void* p_key, void* p_value);void hash_free_entry(struct hash* p_hash, void* p_key);#endif /* VSFTP_HASH_H */