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Name	Size	Permission	Date
aes.h	979 B	-rw-r--r--	2025-01-20 13:39
align.h	608 B	-rw-r--r--	2025-01-20 13:39
app.h	6.98 KB	-rw-r--r--	2025-01-20 13:39
assertions.h	2.3 KB	-rw-r--r--	2025-01-20 13:39
astack.h	1.15 KB	-rw-r--r--	2025-01-20 13:39
atomic.h	3.05 KB	-rw-r--r--	2025-01-20 13:39
attributes.h	2.89 KB	-rw-r--r--	2025-01-20 13:39
backtrace.h	3.14 KB	-rw-r--r--	2025-01-20 13:39
barrier.h	1.05 KB	-rw-r--r--	2025-01-20 13:39
base32.h	4.33 KB	-rw-r--r--	2025-01-20 13:39
base64.h	2.78 KB	-rw-r--r--	2025-01-20 13:39
buffer.h	23.81 KB	-rw-r--r--	2025-01-20 13:39
cmocka.h	1.38 KB	-rw-r--r--	2025-01-20 13:39
commandline.h	1.51 KB	-rw-r--r--	2025-01-20 13:39
condition.h	1.43 KB	-rw-r--r--	2025-01-20 13:39
counter.h	1.95 KB	-rw-r--r--	2025-01-20 13:39
crc64.h	982 B	-rw-r--r--	2025-01-20 13:39
deprecated.h	626 B	-rw-r--r--	2025-01-20 13:39
dir.h	1.59 KB	-rw-r--r--	2025-01-20 13:39
endian.h	4.32 KB	-rw-r--r--	2025-01-20 13:39
errno.h	643 B	-rw-r--r--	2025-01-20 13:39
error.h	1.09 KB	-rw-r--r--	2025-01-20 13:39
event.h	3.35 KB	-rw-r--r--	2025-01-20 13:39
eventclass.h	1.38 KB	-rw-r--r--	2025-01-20 13:39
file.h	10.92 KB	-rw-r--r--	2025-01-20 13:39
formatcheck.h	906 B	-rw-r--r--	2025-01-20 13:39
fuzz.h	582 B	-rw-r--r--	2025-01-20 13:39
glob.h	820 B	-rw-r--r--	2025-01-20 13:39
hash.h	1.6 KB	-rw-r--r--	2025-01-20 13:39
heap.h	5.02 KB	-rw-r--r--	2025-01-20 13:39
hex.h	2.73 KB	-rw-r--r--	2025-01-20 13:39
hmac.h	3.92 KB	-rw-r--r--	2025-01-20 13:39
ht.h	4.29 KB	-rw-r--r--	2025-01-20 13:39
httpd.h	1.71 KB	-rw-r--r--	2025-01-20 13:39
interfaceiter.h	3.03 KB	-rw-r--r--	2025-01-20 13:39
iterated_hash.h	972 B	-rw-r--r--	2025-01-20 13:39
lang.h	673 B	-rw-r--r--	2025-01-20 13:39
lex.h	9.76 KB	-rw-r--r--	2025-01-20 13:39
list.h	8.76 KB	-rw-r--r--	2025-01-20 13:39
log.h	26.04 KB	-rw-r--r--	2025-01-20 13:39
magic.h	924 B	-rw-r--r--	2025-01-20 13:39
managers.h	860 B	-rw-r--r--	2025-01-20 13:39
md.h	5.64 KB	-rw-r--r--	2025-01-20 13:39
mem.h	16.85 KB	-rw-r--r--	2025-01-20 13:39
meminfo.h	688 B	-rw-r--r--	2025-01-20 13:39
mutex.h	1.41 KB	-rw-r--r--	2025-01-20 13:39
mutexblock.h	1.1 KB	-rw-r--r--	2025-01-20 13:39
net.h	6.8 KB	-rw-r--r--	2025-01-20 13:39
netaddr.h	4.74 KB	-rw-r--r--	2025-01-20 13:39
netdb.h	844 B	-rw-r--r--	2025-01-20 13:39
netmgr.h	24.41 KB	-rw-r--r--	2025-01-20 13:39
netscope.h	941 B	-rw-r--r--	2025-01-20 13:39
nonce.h	782 B	-rw-r--r--	2025-01-20 13:39
offset.h	668 B	-rw-r--r--	2025-01-20 13:39
once.h	728 B	-rw-r--r--	2025-01-20 13:39
os.h	1.24 KB	-rw-r--r--	2025-01-20 13:39
parseint.h	1.48 KB	-rw-r--r--	2025-01-20 13:39
pool.h	3.39 KB	-rw-r--r--	2025-01-20 13:39
portset.h	3.2 KB	-rw-r--r--	2025-01-20 13:39
print.h	638 B	-rw-r--r--	2025-01-20 13:39
quota.h	3.49 KB	-rw-r--r--	2025-01-20 13:39
radix.h	6.86 KB	-rw-r--r--	2025-01-20 13:39
random.h	1.49 KB	-rw-r--r--	2026-03-27 00:00
ratelimiter.h	3.38 KB	-rw-r--r--	2025-01-20 13:39
refcount.h	10.19 KB	-rw-r--r--	2025-01-20 13:39
regex.h	751 B	-rw-r--r--	2025-01-20 13:39
region.h	2.16 KB	-rw-r--r--	2025-01-20 13:39
resource.h	2.77 KB	-rw-r--r--	2025-01-20 13:39
result.h	7.78 KB	-rw-r--r--	2025-01-20 13:39
rwlock.h	2.43 KB	-rw-r--r--	2025-01-20 13:39
safe.h	1.11 KB	-rw-r--r--	2025-01-20 13:39
serial.h	1.32 KB	-rw-r--r--	2025-01-20 13:39
siphash.h	929 B	-rw-r--r--	2025-01-20 13:39
sockaddr.h	6.26 KB	-rw-r--r--	2025-01-20 13:39
stat.h	790 B	-rw-r--r--	2025-01-20 13:39
stats.h	6.6 KB	-rw-r--r--	2025-01-20 13:39
stdatomic.h	4.77 KB	-rw-r--r--	2025-01-20 13:39
stdio.h	1.67 KB	-rw-r--r--	2025-01-20 13:39
stdtime.h	1.34 KB	-rw-r--r--	2025-01-20 13:39
strerr.h	692 B	-rw-r--r--	2025-01-20 13:39
string.h	993 B	-rw-r--r--	2025-01-20 13:39
symtab.h	4.2 KB	-rw-r--r--	2025-01-20 13:39
syslog.h	824 B	-rw-r--r--	2025-01-20 13:39
task.h	14.81 KB	-rw-r--r--	2025-01-20 13:39
taskpool.h	3.18 KB	-rw-r--r--	2025-01-20 13:39
thread.h	1.18 KB	-rw-r--r--	2025-01-20 13:39
time.h	11.24 KB	-rw-r--r--	2025-01-20 13:39
timer.h	6.91 KB	-rw-r--r--	2025-01-20 13:39
tls.h	18.02 KB	-rw-r--r--	2025-01-20 13:39
tm.h	884 B	-rw-r--r--	2025-01-20 13:39
types.h	5.18 KB	-rw-r--r--	2025-01-20 13:39
url.h	2.7 KB	-rw-r--r--	2025-01-20 13:39
utf8.h	967 B	-rw-r--r--	2025-01-20 13:39
util.h	12.63 KB	-rw-r--r--	2025-01-20 13:39

Rename

/*
 * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
 *
 * SPDX-License-Identifier: MPL-2.0
 *
 * 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 https://mozilla.org/MPL/2.0/.
 *
 * See the COPYRIGHT file distributed with this work for additional
 * information regarding copyright ownership.
 */

#pragma once

/*****
***** 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 <inttypes.h>

#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). */
	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