228 lines
7.4 KiB
C
228 lines
7.4 KiB
C
/*
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* ++Copyright++ 1985, 1989
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* -
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* Copyright (c) 1985, 1989
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* -
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* Portions Copyright (c) 1993 by Digital Equipment Corporation.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies, and that
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* the name of Digital Equipment Corporation not be used in advertising or
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* publicity pertaining to distribution of the document or software without
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* specific, written prior permission.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
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* CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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* -
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* --Copyright--
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*/
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/*
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* @(#)res.h 5.10 (Berkeley) 6/1/90
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* $Id: res.h,v 8.10 2002/04/09 05:55:22 marka Exp $
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*/
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/*
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*******************************************************************************
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*
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* res.h --
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*
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* Definitions used by modules of the name server lookup program.
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*
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* Copyright (c) 1985
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* Andrew Cherenson
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* U.C. Berkeley
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* CS298-26 Fall 1985
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*
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*******************************************************************************
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*/
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#define TRUE 1
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#define FALSE 0
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typedef int Boolean;
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#define MAXALIASES 35
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#define MAXADDRS 35
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#define MAXDOMAINS 35
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#define MAXSERVERS 10
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/*
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* Define return statuses in addtion to the ones defined in namserv.h
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* let SUCCESS be a synonym for NOERROR
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*
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* TIME_OUT - a socket connection timed out.
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* NO_INFO - the server didn't find any info about the host.
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* ERROR - one of the following types of errors:
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* dn_expand, res_mkquery failed
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* bad command line, socket operation failed, etc.
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* NONAUTH - the server didn't have the desired info but
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* returned the name(s) of some servers who should.
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* NO_RESPONSE - the server didn't respond.
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*
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*/
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#ifdef ERROR
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#undef ERROR
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#endif
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#define SUCCESS 0
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#define TIME_OUT -1
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#define NO_INFO -2
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#define ERROR -3
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#define NONAUTH -4
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#define NO_RESPONSE -5
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/*
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* Define additional options for the resolver state structure.
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*
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* RES_DEBUG2 more verbose debug level
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*/
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#define RES_DEBUG2 0x80000000
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/*
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* Maximum length of server, host and file names.
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*/
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#define NAME_LEN 256
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/*
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* Modified struct hostent from <netdb.h>
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*
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* "Structures returned by network data base library. All addresses
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* are supplied in host order, and returned in network order (suitable
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* for use in system calls)."
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*/
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typedef struct {
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int addrType;
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int addrLen;
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char *addr;
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} AddrInfo;
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typedef struct {
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char *name; /* official name of host */
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char **domains; /* domains it serves */
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AddrInfo **addrList; /* list of addresses from name server */
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} ServerInfo;
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typedef struct {
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char *name; /* official name of host */
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char **aliases; /* alias list */
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AddrInfo **addrList; /* list of addresses from name server */
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ServerInfo **servers;
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} HostInfo;
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/*
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* FilePtr is used for directing listings to a file.
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* It is global so the Control-C handler can close it.
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*/
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extern FILE *filePtr;
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/*
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* TCP/UDP port of server.
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*/
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extern unsigned short nsport;
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/*
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* Our resolver context.
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*/
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extern struct __res_state res;
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/*
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* External routines:
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*/
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/* XXX need prototypes */
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void Print_query(const u_char *msg, const u_char *eom, int printHeader);
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void Fprint_query(const u_char *msg, const u_char *eom, int printHeader,
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FILE *file);
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const u_char *Print_cdname(const u_char *cp, const u_char *msg,
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const u_char *eom, FILE *file);
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const u_char *Print_cdname2(const u_char *cp, const u_char *msg,
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const u_char *eom, FILE *file);
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const u_char *Print_rr(const u_char *ocp, const u_char *msg,
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const u_char *eom, FILE *file);
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extern const char *DecodeType(); /* descriptive version of p_type */
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extern const char *DecodeError();
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extern char *Calloc();
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extern char *Malloc();
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extern void NsError();
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extern void PrintServer();
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extern void PrintHostInfo();
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extern void FreeHostInfoPtr();
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extern FILE *OpenFile();
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extern int pickString(const char *, char *, size_t);
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extern int GetHostInfoByName(union res_sockaddr_union *, int, int,
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const char *, HostInfo *, Boolean, Boolean);
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extern int GetHostDomain(union res_sockaddr_union *, int, int,
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const char *, char *, HostInfo *, Boolean, Boolean);
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extern int matchString(const char *, const char *);
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extern int StringToType(char *, int, FILE *);
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extern int StringToClass(char *, int, FILE *);
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extern int SendRequest(union res_sockaddr_union *, const u_char *, int,
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u_char *, u_int, int *);
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extern void SendRequest_close(void);
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extern int SetDefaultServer(char *, Boolean);
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extern int Finger(char *, int);
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void ListHostsByType(char *, int);
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void ListHosts(char *, int);
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void ListHost_close(void);
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int SetOption(char *);
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int LookupHost(char *, Boolean);
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int LookupHostWithServer(char *, Boolean);
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const char * DecodeType(int);
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const char * DecodeError(int);
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FILE * OpenFile(char *, char *, size_t);
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void PrintHostInfo(FILE *, const char *, HostInfo *);
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char * Calloc(int, int);
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char * Malloc(int);
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SIG_FN IntrHandler(int);
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int ListSubr(int, char *, char *);
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void FreeHostInfoPtr(HostInfo *);
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unsigned char * res_skip(unsigned char *, int, unsigned char *);
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extern Boolean IsAddr(const char *, union res_sockaddr_union *);
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void PrintHelp(void);
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int GetHostInfoByAddr(union res_sockaddr_union *, union res_sockaddr_union *,
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HostInfo *);
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