1/* 2 * Copyright (C) 2004-2007, 2009 Internet Systems Consortium, Inc. ("ISC") 3 * Copyright (C) 2001 Internet Software Consortium. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 11 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 15 * PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18/* $Id: getaddresses.h,v 1.11 2009/01/17 23:47:42 tbox Exp $ */ 19 20#ifndef BIND9_GETADDRESSES_H 21#define BIND9_GETADDRESSES_H 1 22 23/*! \file bind9/getaddresses.h */ 24 25#include <isc/lang.h> 26#include <isc/types.h> 27 28#include <isc/net.h> 29 30ISC_LANG_BEGINDECLS 31 32isc_result_t 33bind9_getaddresses(const char *hostname, in_port_t port, 34 isc_sockaddr_t *addrs, int addrsize, int *addrcount); 35/*%< 36 * Use the system resolver to get the addresses associated with a hostname. 37 * If successful, the number of addresses found is returned in 'addrcount'. 38 * If a hostname lookup is performed and addresses of an unknown family is 39 * seen, it is ignored. If more than 'addrsize' addresses are seen, the 40 * first 'addrsize' are returned and the remainder silently truncated. 41 * 42 * This routine may block. If called by a program using the isc_app 43 * framework, it should be surrounded by isc_app_block()/isc_app_unblock(). 44 * 45 * Requires: 46 *\li 'hostname' is not NULL. 47 *\li 'addrs' is not NULL. 48 *\li 'addrsize' > 0 49 *\li 'addrcount' is not NULL. 50 * 51 * 52 * Returns: 53 *\li #ISC_R_SUCCESS 54 *\li #ISC_R_NOTFOUND 55 *\li #ISC_R_NOFAMILYSUPPORT - 'hostname' is an IPv6 address, and IPv6 is 56 * not supported. 57 */ 58 59ISC_LANG_ENDDECLS 60 61#endif /* BIND9_GETADDRESSES_H */ 62