ꦫꦣꦺꦤ꧀ꦄꦤ꧀ꦠꦱꦺꦤ

PATH: usr / include / bind9 / isc

/*
 * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * See the COPYRIGHT file distributed with this work for additional
 * information regarding copyright ownership.
 */

#ifndef ISC_INTERFACEITER_H
#define ISC_INTERFACEITER_H 1

/*****
 ***** Module Info
 *****/

/*! \file isc/interfaceiter.h
 * \brief Iterates over the list of network interfaces.
 *
 * Interfaces whose address family is not supported are ignored and never
 * returned by the iterator.  Interfaces whose netmask, interface flags,
 * or similar cannot be obtained are also ignored, and the failure is logged.
 *
 * Standards:
 *	The API for scanning varies greatly among operating systems.
 *	This module attempts to hide the differences.
 */

/***
 *** Imports
 ***/

#include <isc/lang.h>
#include <isc/netaddr.h>
#include <isc/types.h>

/*!
 * \brief Public structure describing a network interface.
 */

struct isc_interface {
	char name[32];			/*%< Interface name, null-terminated. */
	unsigned int af;		/*%< Address family. */
	isc_netaddr_t address;		/*%< Local address. */
	isc_netaddr_t netmask;		/*%< Network mask. */
	isc_netaddr_t dstaddress; 	/*%< Destination address (point-to-point only). */
	isc_uint32_t flags;		/*%< Flags; see INTERFACE flags. */
};

/*@{*/
/*! Interface flags. */

#define INTERFACE_F_UP			0x00000001U
#define INTERFACE_F_POINTTOPOINT	0x00000002U
#define INTERFACE_F_LOOPBACK		0x00000004U
/*@}*/

/***
 *** Functions
 ***/

ISC_LANG_BEGINDECLS

isc_result_t
isc_interfaceiter_create(isc_mem_t *mctx, isc_interfaceiter_t **iterp);
/*!<
 * \brief Create an iterator for traversing the operating system's list
 * of network interfaces.
 *
 * Returns:
 *\li	#ISC_R_SUCCESS
 * \li	#ISC_R_NOMEMORY
 *\li	Various network-related errors
 */

isc_result_t
isc_interfaceiter_first(isc_interfaceiter_t *iter);
/*!<
 * \brief Position the iterator on the first interface.
 *
 * Returns:
 *\li	#ISC_R_SUCCESS		Success.
 *\li	#ISC_R_NOMORE		There are no interfaces.
 */

isc_result_t
isc_interfaceiter_current(isc_interfaceiter_t *iter,
			  isc_interface_t *ifdata);
/*!<
 * \brief Get information about the interface the iterator is currently
 * positioned at and store it at *ifdata.
 *
 * Requires:
 *\li 	The iterator has been successfully positioned using
 * 	isc_interface_iter_first() / isc_interface_iter_next().
 *
 * Returns:
 *\li	#ISC_R_SUCCESS		Success.
 */

isc_result_t
isc_interfaceiter_next(isc_interfaceiter_t *iter);
/*!<
 * \brief Position the iterator on the next interface.
 *
 * Requires:
 * \li	The iterator has been successfully positioned using
 * 	isc_interface_iter_first() / isc_interface_iter_next().
 *
 * Returns:
 *\li	#ISC_R_SUCCESS		Success.
 *\li	#ISC_R_NOMORE		There are no more interfaces.
 */

void
isc_interfaceiter_destroy(isc_interfaceiter_t **iterp);
/*!<
 * \brief Destroy the iterator.
 */

ISC_LANG_ENDDECLS

#endif /* ISC_INTERFACEITER_H */

[-] netscope.h [edit]
[-] taskpool.h [edit]
[-] netdb.h [edit]
[-] md5.h [edit]
[-] file.h [edit]
[-] version.h [edit]
[-] int.h [edit]
[-] sha2.h [edit]
[-] region.h [edit]
[-] aes.h [edit]
[-] string.h [edit]
[-] socket.h [edit]
[-] keyboard.h [edit]
[-] base32.h [edit]
[-] bufferlist.h [edit]
[-] iterated_hash.h [edit]
[-] magic.h [edit]
[-] tm.h [edit]
[-] serial.h [edit]
[-] errno2result.h [edit]
[-] resource.h [edit]
[-] stats.h [edit]
[+] ..
[-] heap.h [edit]
[-] base64.h [edit]
[-] ratelimiter.h [edit]
[-] stdtime.h [edit]
[-] mutexblock.h [edit]
[-] sockaddr.h [edit]
[-] mem.h [edit]
[-] platform.h [edit]
[-] errno.h [edit]
[-] regex.h [edit]
[-] hex.h [edit]
[-] result.h [edit]
[-] radix.h [edit]
[-] crc64.h [edit]
[-] atomic.h [edit]
[-] fsaccess.h [edit]
[-] thread.h [edit]
[-] stat.h [edit]
[-] xml.h [edit]
[-] boolean.h [edit]
[-] ht.h [edit]
[-] lang.h [edit]
[-] offset.h [edit]
[-] log.h [edit]
[-] refcount.h [edit]
[-] time.h [edit]
[-] bind9.h [edit]
[-] quota.h [edit]
[-] httpd.h [edit]
[-] strerror.h [edit]
[-] hash.h [edit]
[-] types.h [edit]
[-] eventclass.h [edit]
[-] hmacsha.h [edit]
[-] pool.h [edit]
[-] task.h [edit]
[-] counter.h [edit]
[-] msgs.h [edit]
[-] stdlib.h [edit]
[-] syslog.h [edit]
[-] likely.h [edit]
[-] sha1.h [edit]
[-] timer.h [edit]
[-] lfsr.h [edit]
[-] safe.h [edit]
[-] stdio.h [edit]
[-] os.h [edit]
[-] condition.h [edit]
[-] rwlock.h [edit]
[-] meminfo.h [edit]
[-] symtab.h [edit]
[-] mutex.h [edit]
[-] print.h [edit]
[-] backtrace.h [edit]
[-] json.h [edit]
[-] ondestroy.h [edit]
[-] formatcheck.h [edit]
[-] event.h [edit]
[-] once.h [edit]
[-] net.h [edit]
[-] error.h [edit]
[-] entropy.h [edit]
[-] parseint.h [edit]
[-] app.h [edit]
[-] lib.h [edit]
[-] assertions.h [edit]
[-] commandline.h [edit]
[-] msgcat.h [edit]
[-] lex.h [edit]
[-] hmacmd5.h [edit]
[-] interfaceiter.h [edit]
[-] netaddr.h [edit]
[-] random.h [edit]
[-] dir.h [edit]
[-] list.h [edit]
[-] util.h [edit]
[-] queue.h [edit]
[-] portset.h [edit]
[-] deprecated.h [edit]
[-] buffer.h [edit]
[-] resultclass.h [edit]