2014-09-06 23:08:25 +08:00
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#ifndef ACL_NETDB_INCLUDE_H
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#define ACL_NETDB_INCLUDE_H
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2013-08-18 17:42:25 +08:00
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#include "stdlib/acl_define.h"
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#ifdef ACL_UNIX
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#include <netinet/in.h>
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#endif
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#include "stdlib/acl_array.h"
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/**
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* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>ṹ
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*/
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typedef struct ACL_HOSTNAME ACL_HOST_INFO;
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typedef struct ACL_HOSTNAME {
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char ip[64]; /**< the ip addr of the HOST */
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struct sockaddr_in saddr; /**< ip addr in sockaddr_in */
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unsigned int ttl; /**< the HOST's ip timeout(second) */
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int hport;
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unsigned int nrefer; /**< refer number to this HOST */
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} ACL_HOSTNAME;
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/**
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* DNS<EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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*/
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typedef struct ACL_DNS_DB {
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ACL_ARRAY *h_db;
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int size;
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char name[256];
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/* for acl_iterator */
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/* ȡ<><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD> */
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const ACL_HOST_INFO *(*iter_head)(ACL_ITER*, struct ACL_DNS_DB*);
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/* ȡ<><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
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const ACL_HOST_INFO *(*iter_next)(ACL_ITER*, struct ACL_DNS_DB*);
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/* ȡ<><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>β<EFBFBD><CEB2><EFBFBD><EFBFBD> */
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const ACL_HOST_INFO *(*iter_tail)(ACL_ITER*, struct ACL_DNS_DB*);
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/* ȡ<><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
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const ACL_HOST_INFO *(*iter_prev)(ACL_ITER*, struct ACL_DNS_DB*);
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/* ȡ<><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD>ṹ<EFBFBD><E1B9B9><EFBFBD><EFBFBD> */
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const ACL_HOST_INFO *(*iter_info)(ACL_ITER*, struct ACL_DNS_DB*);
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} ACL_DNS_DB;
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/* in acl_netdb.c */
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/**
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* <EFBFBD>ӽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>±<EFBFBD>λ<EFBFBD>õ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>ṹ
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* @param h_dns_db {const ACL_DNS_DB*} DNS<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @param i {int} <EFBFBD>±<EFBFBD>λ<EFBFBD><EFBFBD>
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* @return {const ACL_HOSTNAME*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>±<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>ṹ
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*/
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ACL_API const ACL_HOSTNAME *acl_netdb_index(const ACL_DNS_DB *h_dns_db, int i);
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/**
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* <EFBFBD>ӽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>±<EFBFBD>λ<EFBFBD>õ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IP<EFBFBD><EFBFBD>ַ
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* @param h_dns_db {const ACL_DNS_DB*} DNS<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @param i {int} <EFBFBD>±<EFBFBD>λ<EFBFBD><EFBFBD>
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* @return {const struct sockaddr_in*} IP<EFBFBD><EFBFBD>ַ<EFBFBD>ṹ, NULL<EFBFBD><EFBFBD>ʾʧ<EFBFBD><EFBFBD>
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*/
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ACL_API const struct sockaddr_in *acl_netdb_index_saddr(ACL_DNS_DB *h_dns_db, int i);
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/**
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* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĶ<EFBFBD>Ӧij<EFBFBD><EFBFBD><EFBFBD>±<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @param h_dns_db {const ACL_DNS_DB*} DNS<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @param i {int} <EFBFBD>±<EFBFBD>λ<EFBFBD><EFBFBD>
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* @param n {int} <EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
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*/
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ACL_API void acl_netdb_refer_oper(ACL_DNS_DB *h_dns_db, int i, int n);
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/**
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* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĶ<EFBFBD>Ӧij<EFBFBD><EFBFBD><EFBFBD>±<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>ü<EFBFBD>1
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* @param h_dns_db {const ACL_DNS_DB*} DNS<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @param i {int} <EFBFBD>±<EFBFBD>λ<EFBFBD><EFBFBD>
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*/
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ACL_API void acl_netdb_refer(ACL_DNS_DB *h_dns_db, int i);
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/**
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* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĶ<EFBFBD>Ӧij<EFBFBD><EFBFBD><EFBFBD>±<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>ü<EFBFBD>1
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* @param h_dns_db {const ACL_DNS_DB*} DNS<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @param i {int} <EFBFBD>±<EFBFBD>λ<EFBFBD><EFBFBD>
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*/
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ACL_API void acl_netdb_unrefer(ACL_DNS_DB *h_dns_db, int i);
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/**
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* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĶ<EFBFBD>Ӧij<EFBFBD><EFBFBD><EFBFBD>±<EFBFBD><EFBFBD><EFBFBD>IP<EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ
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* @param h_dns_db {const ACL_DNS_DB*} DNS<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @param i {int} <EFBFBD>±<EFBFBD>λ<EFBFBD><EFBFBD>
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* @return {const char*} <EFBFBD><EFBFBD><EFBFBD>õĽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>NULL <EFBFBD><EFBFBD>ʾʧ<EFBFBD><EFBFBD>
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*/
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ACL_API const char *acl_netdb_index_ip(const ACL_DNS_DB *h_dns_db, int i);
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/**
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* ȡ<EFBFBD>ý<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>ĸ<EFBFBD><EFBFBD><EFBFBD>
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* @param h_dns_db {const ACL_DNS_DB*} DNS<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @return {int} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> > 0, -1 <EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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*/
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ACL_API int acl_netdb_size(const ACL_DNS_DB *h_dns_db);
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/**
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* <EFBFBD>ͷŽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD>Դ
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* @param h_dns_db {ACL_DNS_DB*} DNS<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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*/
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ACL_API void acl_netdb_free(ACL_DNS_DB *h_dns_db);
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/**
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* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľṹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DNS<EFBFBD><EFBFBD>ѯ
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* @param domain {const char*} Ҫ<EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @return {ACL_DNS_DB*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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*/
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ACL_API ACL_DNS_DB *acl_netdb_new(const char *domain);
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/**
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* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IP<EFBFBD><EFBFBD>ַ
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* @param h_dns_db {ACL_DNS_DB*} <EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @param ip {const char*} Ҫ<EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD>IP<EFBFBD><EFBFBD>ַ
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*/
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ACL_API void acl_netdb_addip(ACL_DNS_DB *h_dns_db, const char *ip);
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/**
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* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IP<EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>˿ں<EFBFBD>
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* @param h_dns_db {ACL_DNS_DB*} <EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @param ip {const char*} Ҫ<EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD>IP<EFBFBD><EFBFBD>ַ
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* @param port {int} Ҫ<EFBFBD><EFBFBD><EFBFBD>ӵĶ˿ں<EFBFBD>
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*/
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ACL_API void acl_netdb_add_addr(ACL_DNS_DB *h_dns_db, const char *ip, int port);
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/**
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* <EFBFBD><EFBFBD>¡һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @param h_dns_db {const ACL_DNS_DB*} Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @return {ACL_DNS_DB*} <EFBFBD>¿<EFBFBD>¡<EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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*/
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ACL_API ACL_DNS_DB *acl_netdb_clone(const ACL_DNS_DB *h_dns_db);
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/**
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* <EFBFBD><EFBFBD>ѯij<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IP<EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD>
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* @param name {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @param h_error {int*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѯʧ<EFBFBD>ܴ洢<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD>
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* @return {ACL_DNS_DB*} <EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ΪNULL<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѯʧ<EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD>⣬<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD>ز<EFBFBD>Ϊ<EFBFBD>գ<EFBFBD>
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* Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫͨ<EFBFBD><EFBFBD> acl_netdb_size()/1 <EFBFBD><EFBFBD><EFBFBD>ý<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>鳤<EFBFBD><EFBFBD>
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*/
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ACL_API ACL_DNS_DB *acl_gethostbyname(const char *name, int *h_error);
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/**
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* <EFBFBD><EFBFBD><EFBFBD>ݴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ż<EFBFBD><EFBFBD>ó<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD>Ϣ
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* @param errnum {int} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @return {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ
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*/
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ACL_API const char *acl_netdb_strerror(int errnum);
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/* in acl_netdb_cache.c */
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/**
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* <EFBFBD><EFBFBD>DNS<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @param h_dns_db {const ACL_DNS_DB*} DNS<EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @param timeout {int} <EFBFBD>ý<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>ʱʱ<EFBFBD>䣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <= 0, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĭ<EFBFBD>ϵ<EFBFBD>ֵ<EFBFBD><EFBFBD>
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* <EFBFBD><EFBFBD>Ĭ<EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> acl_netdb_cache_init()/2 <EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ, <EFBFBD><EFBFBD>λΪ<EFBFBD><EFBFBD>
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*/
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ACL_API void acl_netdb_cache_push(const ACL_DNS_DB *h_dns_db, int timeout);
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/**
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* <EFBFBD><EFBFBD>DNS<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>DNS<EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @param name {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @return {ACL_DNS_DB*} DNS<EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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*/
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ACL_API ACL_DNS_DB *acl_netdb_cache_lookup(const char *name);
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/**
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* <EFBFBD><EFBFBD>DNS<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɾ<EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD>DNS<EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @param name {const char*} <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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*/
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ACL_API void acl_netdb_cache_del_host(const char *name);
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/**
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* <EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>DNS<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @param timeout {int} DNS<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĭ<EFBFBD>ϻ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>(<EFBFBD><EFBFBD>)
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* @param thread_safe {int} <EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD>ҪDNS<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̰߳<EFBFBD>ȫ, 0: <EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ,
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* 1: <EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD>Ҫ<EFBFBD>̰߳<EFBFBD>ȫ
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*/
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ACL_API void acl_netdb_cache_init(int timeout, int thread_safe);
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#endif
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