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/* * 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. / /! \file isc/portset.h * \brief Transport Protocol Port Manipulation Module * * This module provides simple utilities to handle a set of transport protocol * (UDP or TCP) port numbers, e.g., for creating an ACL list. An isc_portset_t * object is an opaque instance of a port set, for which the user can add or * remove a specific port or a range of consecutive ports. This object is * expected to be used as a temporary work space only, and does not protect * simultaneous access from multiple threads. Therefore it must not be stored * in a place that can be accessed from multiple threads. / #ifndef ISC_PORTSET_H #define ISC_PORTSET_H 1 / * Imports */ #include <isc/net.h> /* * Functions / ISC_LANG_BEGINDECLS isc_result_t isc_portset_create(isc_mem_t mctx, isc_portset_t *portsetp); /%< * Create a port set and initialize it as an empty set. * * Requires: \li 'mctx' to be valid. \li 'portsetp' to be non NULL and 'portsetp' to be NULL; * Returns: \li #ISC_R_SUCCESS \li #ISC_R_NOMEMORY / void isc_portset_destroy(isc_mem_t mctx, isc_portset_t *portsetp); /%< * Destroy a port set. * * Requires: \li 'mctx' to be valid and must be the same context given when the port set was created. \li 'portsetp' to be a valid set. / isc_boolean_t isc_portset_isset(isc_portset_t portset, in_port_t port); /%< Test whether the given port is stored in the portset. * * Requires: \li 'portset' to be a valid set. * Returns * \li #ISC_TRUE if the port is found, ISC_FALSE otherwise. / unsigned int isc_portset_nports(isc_portset_t portset); /%< Provides the number of ports stored in the given portset. * * Requires: \li 'portset' to be a valid set. * Returns * \li the number of ports stored in portset. / void isc_portset_add(isc_portset_t portset, in_port_t port); /%< Add the given port to the portset. The port may or may not be stored in * the portset. * * Requires: \li 'portlist' to be valid. / void isc_portset_remove(isc_portset_t portset, in_port_t port); /%< * Remove the given port to the portset. The port may or may not be stored in * the portset. * * Requires: \li 'portlist' to be valid. / void isc_portset_addrange(isc_portset_t portset, in_port_t port_lo, in_port_t port_hi); /%< * Add a subset of [port_lo, port_hi] (inclusive) to the portset. Ports in the * subset may or may not be stored in portset. * * Requires: \li 'portlist' to be valid. \li port_lo <= port_hi / void isc_portset_removerange(isc_portset_t portset, in_port_t port_lo, in_port_t port_hi); /%< Subtract a subset of [port_lo, port_hi] (inclusive) from the portset. Ports * in the subset may or may not be stored in portset. * * Requires: \li 'portlist' to be valid. \li port_lo <= port_hi / ISC_LANG_ENDDECLS #endif / ISC_PORTSET_H */

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