ISC DHCP 4.4.3-P1
A reference DHCPv4 and DHCPv6 implementation
 
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nameser_compat.h
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1/* Copyright (c) 1983, 1989
2 * The Regents of the University of California. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. Neither the name of the University nor the names of its contributors
13 * may be used to endorse or promote products derived from this software
14 * without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29/*
30 * from nameser.h 8.1 (Berkeley) 6/2/93
31 * $Id: nameser_compat.h,v 1.2 2000/01/27 23:28:08 mellon Exp $
32 */
33
34#ifndef _ARPA_NAMESER_COMPAT_
35#define _ARPA_NAMESER_COMPAT_
36
37/*
38 * Structure for query header. The order of the fields is machine- and
39 * compiler-dependent, depending on the byte/bit order and the layout
40 * of bit fields. We use bit fields only in int variables, as this
41 * is all ANSI requires. This requires a somewhat confusing rearrangement.
42 */
43
44typedef struct {
45 unsigned id :16; /* query identification number */
46#if BYTE_ORDER == BIG_ENDIAN
47 /* fields in third byte */
48 unsigned qr: 1; /* response flag */
49 unsigned opcode: 4; /* purpose of message */
50 unsigned aa: 1; /* authoritive answer */
51 unsigned tc: 1; /* truncated message */
52 unsigned rd: 1; /* recursion desired */
53 /* fields in fourth byte */
54 unsigned ra: 1; /* recursion available */
55 unsigned unused :1; /* unused bits (MBZ as of 4.9.3a3) */
56 unsigned ad: 1; /* authentic data from named */
57 unsigned cd: 1; /* checking disabled by resolver */
58 unsigned rcode :4; /* response code */
59#endif
60#if BYTE_ORDER == LITTLE_ENDIAN || BYTE_ORDER == PDP_ENDIAN
61 /* fields in third byte */
62 unsigned rd :1; /* recursion desired */
63 unsigned tc :1; /* truncated message */
64 unsigned aa :1; /* authoritive answer */
65 unsigned opcode :4; /* purpose of message */
66 unsigned qr :1; /* response flag */
67 /* fields in fourth byte */
68 unsigned rcode :4; /* response code */
69 unsigned cd: 1; /* checking disabled by resolver */
70 unsigned ad: 1; /* authentic data from named */
71 unsigned unused :1; /* unused bits (MBZ as of 4.9.3a3) */
72 unsigned ra :1; /* recursion available */
73#endif
74 /* remaining bytes */
75 unsigned qdcount :16; /* number of question entries */
76 unsigned ancount :16; /* number of answer entries */
77 unsigned nscount :16; /* number of authority entries */
78 unsigned arcount :16; /* number of resource entries */
79} HEADER;
80
81#define PACKETSZ NS_PACKETSZ
82#define MAXDNAME NS_MAXDNAME
83#define MAXCDNAME NS_MAXCDNAME
84#define MAXLABEL NS_MAXLABEL
85#define HFIXEDSZ NS_HFIXEDSZ
86#define QFIXEDSZ NS_QFIXEDSZ
87#define RRFIXEDSZ NS_RRFIXEDSZ
88#define INT32SZ NS_INT32SZ
89#define INT16SZ NS_INT16SZ
90#define INADDRSZ NS_INADDRSZ
91#define IN6ADDRSZ NS_IN6ADDRSZ
92#define INDIR_MASK NS_CMPRSFLGS
93#define NAMESERVER_PORT NS_DEFAULTPORT
94
95#define S_ZONE ns_s_zn
96#define S_PREREQ ns_s_pr
97#define S_UPDATE ns_s_ud
98#define S_ADDT ns_s_ar
99
100#define QUERY ns_o_query
101#define IQUERY ns_o_iquery
102#define STATUS ns_o_status
103#define NS_NOTIFY_OP ns_o_notify
104#define NS_UPDATE_OP ns_o_update
105
106#define NOERROR ns_r_noerror
107#define FORMERR ns_r_formerr
108#define SERVFAIL ns_r_servfail
109#define NXDOMAIN ns_r_nxdomain
110#define NOTIMP ns_r_notimpl
111#define REFUSED ns_r_refused
112#define YXDOMAIN ns_r_yxdomain
113#define YXRRSET ns_r_yxrrset
114#define NXRRSET ns_r_nxrrset
115#define NOTAUTH ns_r_notauth
116#define NOTZONE ns_r_notzone
117/*#define BADSIG ns_r_badsig*/
118/*#define BADKEY ns_r_badkey*/
119/*#define BADTIME ns_r_badtime*/
120
121
122#define DELETE ns_uop_delete
123#define ADD ns_uop_add
124
125#define T_A ns_t_a
126#define T_NS ns_t_ns
127#define T_MD ns_t_md
128#define T_MF ns_t_mf
129#define T_CNAME ns_t_cname
130#define T_SOA ns_t_soa
131#define T_MB ns_t_mb
132#define T_MG ns_t_mg
133#define T_MR ns_t_mr
134#define T_NULL ns_t_null
135#define T_WKS ns_t_wks
136#define T_PTR ns_t_ptr
137#define T_HINFO ns_t_hinfo
138#define T_MINFO ns_t_minfo
139#define T_MX ns_t_mx
140#define T_TXT ns_t_txt
141#define T_RP ns_t_rp
142#define T_AFSDB ns_t_afsdb
143#define T_X25 ns_t_x25
144#define T_ISDN ns_t_isdn
145#define T_RT ns_t_rt
146#define T_NSAP ns_t_nsap
147#define T_NSAP_PTR ns_t_nsap_ptr
148#define T_SIG ns_t_sig
149#define T_KEY ns_t_key
150#define T_PX ns_t_px
151#define T_GPOS ns_t_gpos
152#define T_AAAA ns_t_aaaa
153#define T_LOC ns_t_loc
154#define T_NXT ns_t_nxt
155#define T_EID ns_t_eid
156#define T_NIMLOC ns_t_nimloc
157#define T_SRV ns_t_srv
158#define T_ATMA ns_t_atma
159#define T_NAPTR ns_t_naptr
160#define T_TSIG ns_t_tsig
161#define T_IXFR ns_t_ixfr
162#define T_AXFR ns_t_axfr
163#define T_MAILB ns_t_mailb
164#define T_MAILA ns_t_maila
165#define T_ANY ns_t_any
166
167#define C_IN ns_c_in
168#define C_CHAOS ns_c_chaos
169#define C_HS ns_c_hs
170/* BIND_UPDATE */
171#define C_NONE ns_c_none
172#define C_ANY ns_c_any
173
174#define GETSHORT NS_GET16
175#define GETLONG NS_GET32
176#define PUTSHORT NS_PUT16
177#define PUTLONG NS_PUT32
178
179#endif /* _ARPA_NAMESER_COMPAT_ */
unsigned rd
unsigned nscount
unsigned qdcount
unsigned ad
unsigned unused
unsigned opcode
unsigned rcode
unsigned arcount
unsigned ancount
unsigned tc
unsigned ra
unsigned aa
unsigned qr
unsigned id
unsigned cd