00001 /* 00002 * Asterisk -- An open source telephony toolkit. 00003 * 00004 * Copyright (C) 1999 - 2005, Digium, Inc. 00005 * 00006 * Kevin P. Fleming <kpfleming@digium.com> 00007 * 00008 * See http://www.asterisk.org for more information about 00009 * the Asterisk project. Please do not directly contact 00010 * any of the maintainers of this project for assistance; 00011 * the project provides a web site, mailing lists and IRC 00012 * channels for your use. 00013 * 00014 * This program is free software, distributed under the terms of 00015 * the GNU General Public License Version 2. See the LICENSE file 00016 * at the top of the source tree. 00017 */ 00018 00019 /*! \file 00020 * \brief Background DNS update manager 00021 */ 00022 00023 #ifndef _ASTERISK_DNSMGR_H 00024 #define _ASTERISK_DNSMGR_H 00025 00026 #if defined(__cplusplus) || defined(c_plusplus) 00027 extern "C" { 00028 #endif 00029 00030 #include <netinet/in.h> 00031 00032 struct ast_dnsmgr_entry; 00033 00034 struct ast_dnsmgr_entry *ast_dnsmgr_get(const char *name, struct in_addr *result); 00035 00036 void ast_dnsmgr_release(struct ast_dnsmgr_entry *entry); 00037 00038 int ast_dnsmgr_lookup(const char *name, struct in_addr *result, struct ast_dnsmgr_entry **dnsmgr); 00039 00040 /*! 00041 * \brief Force a refresh of a dnsmgr entry 00042 * 00043 * \retval non-zero if the result is different than the previous result 00044 * \retval zero if the result is the same as the previous result 00045 */ 00046 int ast_dnsmgr_refresh(struct ast_dnsmgr_entry *entry); 00047 00048 /*! 00049 * \brief Check is see if a dnsmgr entry has changed 00050 * 00051 * \retval non-zero if the dnsmgr entry has changed since the last call to 00052 * this function 00053 * \retval zero if the dnsmgr entry has not changed since the last call to 00054 * this function 00055 */ 00056 int ast_dnsmgr_changed(struct ast_dnsmgr_entry *entry); 00057 00058 #if defined(__cplusplus) || defined(c_plusplus) 00059 } 00060 #endif /* c_plusplus */ 00061 00062 #endif /* ASTERISK_DNSMGR_H */