/* * ++Copyright++ 1985, 1989 * - * Copyright (c) 1985, 1989 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * Portions Copyright (c) 1993 by Digital Equipment Corporation. * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies, and that * the name of Digital Equipment Corporation not be used in advertising or * publicity pertaining to distribution of the document or software without * specific, written prior permission. * * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS * SOFTWARE. * - * --Copyright-- */ /* * @(#)res.h 5.10 (Berkeley) 6/1/90 * $Id: res.h,v 4.9.1.3 1994/06/01 21:10:16 vixie Exp $ */ /* ******************************************************************************* * * res.h -- * * Definitions used by modules of the name server lookup program. * * Copyright (c) 1985 * Andrew Cherenson * U.C. Berkeley * CS298-26 Fall 1985 * ******************************************************************************* */ #define TRUE 1 #define FALSE 0 typedef int Boolean; /* * Define return statuses in addtion to the ones defined in namserv.h * let SUCCESS be a synonym for NOERROR * * TIME_OUT - a socket connection timed out. * NO_INFO - the server didn't find any info about the host. * ERROR - one of the following types of errors: * dn_expand, res_mkquery failed * bad command line, socket operation failed, etc. * NONAUTH - the server didn't have the desired info but * returned the name(s) of some servers who should. * NO_RESPONSE - the server didn't respond. * */ #define SUCCESS 0 #define TIME_OUT -1 #define NO_INFO -2 #define ERROR -3 #define NONAUTH -4 #define NO_RESPONSE -5 /* * Define additional options for the resolver state structure. * * RES_DEBUG2 more verbose debug level */ #define RES_DEBUG2 0x80000000 /* * Maximum length of server, host and file names. */ #define NAME_LEN 256 /* * Modified struct hostent from * * "Structures returned by network data base library. All addresses * are supplied in host order, and returned in network order (suitable * for use in system calls)." */ typedef struct { char *name; /* official name of host */ char **domains; /* domains it serves */ char **addrList; /* list of addresses from name server */ } ServerInfo; typedef struct { char *name; /* official name of host */ char **aliases; /* alias list */ char **addrList; /* list of addresses from name server */ int addrType; /* host address type */ int addrLen; /* length of address */ ServerInfo **servers; } HostInfo; /* * FilePtr is used for directing listings to a file. * It is global so the Control-C handler can close it. */ extern FILE *filePtr; /* * TCP/UDP port of server. */ extern unsigned short nsport; /* * External routines: */ extern Boolean IsAddr(); extern int Print_query(); extern unsigned char *Print_cdname(); extern unsigned char *Print_cdname2(); /* fixed width */ extern unsigned char *Print_rr(); extern char *DecodeType(); /* descriptive version of p_type */ extern char *DecodeError(); extern char *Calloc(); extern char *Malloc(); extern void NsError(); extern void PrintServer(); extern void PrintHostInfo(); extern void ShowOptions(); extern void FreeHostInfoPtr(); extern FILE *OpenFile(); extern char *res_skip();