| /* |
| * ++Copyright++ 1983, 1989, 1993 |
| * - |
| * Copyright (c) 1983, 1989, 1993 |
| * 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-- |
| */ |
| |
| /* |
| * @(#)nameser.h 8.1 (Berkeley) 6/2/93 |
| * nameser.h,v 1.2 1995/05/06 14:23:54 hjl Exp |
| */ |
| |
| #ifndef _NAMESER_H_ |
| #define _NAMESER_H_ |
| |
| #ifndef WIN32 |
| #include <sys/param.h> |
| #if (!defined(BSD)) || (BSD < 199306) |
| # include <sys/bitypes.h> |
| #else |
| # include <sys/types.h> |
| #endif |
| #include <sys/cdefs.h> |
| #else |
| #include <pcap-stdinc.h> |
| #define __LITTLE_ENDIAN 1 |
| #define __BYTE_ORDER __LITTLE_ENDIAN |
| #endif |
| |
| /* |
| * revision information. this is the release date in YYYYMMDD format. |
| * it can change every day so the right thing to do with it is use it |
| * in preprocessor commands such as "#if (__BIND > 19931104)". do not |
| * compare for equality; rather, use it to determine whether your resolver |
| * is new enough to contain a certain feature. |
| */ |
| |
| #define __BIND 19940417 /* interface version stamp */ |
| |
| /* |
| * Define constants based on rfc883 |
| */ |
| #define PACKETSZ 512 /* maximum packet size */ |
| #define MAXDNAME 256 /* maximum domain name */ |
| #define MAXCDNAME 255 /* maximum compressed domain name */ |
| #define MAXLABEL 63 /* maximum length of domain label */ |
| #define HFIXEDSZ 12 /* #/bytes of fixed data in header */ |
| #define QFIXEDSZ 4 /* #/bytes of fixed data in query */ |
| #define RRFIXEDSZ 10 /* #/bytes of fixed data in r record */ |
| #define INT32SZ 4 /* for systems without 32-bit ints */ |
| #define INT16SZ 2 /* for systems without 16-bit ints */ |
| #define INADDRSZ 4 /* for sizeof(struct inaddr) != 4 */ |
| |
| /* |
| * Internet nameserver port number |
| */ |
| #define NAMESERVER_PORT 53 |
| |
| /* |
| * Currently defined opcodes |
| */ |
| #define QUERY 0x0 /* standard query */ |
| #define IQUERY 0x1 /* inverse query */ |
| #define STATUS 0x2 /* nameserver status query */ |
| /*#define xxx 0x3 *//* 0x3 reserved */ |
| #define NS_NOTIFY_OP 0x4 /* notify secondary of SOA change */ |
| #ifdef ALLOW_UPDATES |
| /* non standard - supports ALLOW_UPDATES stuff from Mike Schwartz */ |
| # define UPDATEA 0x9 /* add resource record */ |
| # define UPDATED 0xa /* delete a specific resource record */ |
| # define UPDATEDA 0xb /* delete all named resource record */ |
| # define UPDATEM 0xc /* modify a specific resource record */ |
| # define UPDATEMA 0xd /* modify all named resource record */ |
| # define ZONEINIT 0xe /* initial zone transfer */ |
| # define ZONEREF 0xf /* incremental zone referesh */ |
| #endif |
| |
| /* |
| * Currently defined response codes |
| */ |
| #ifdef HAVE_ADDRINFO |
| #define NOERROR 0 /* no error */ |
| #endif /* HAVE_ADDRINFO */ |
| #define FORMERR 1 /* format error */ |
| #define SERVFAIL 2 /* server failure */ |
| #define NXDOMAIN 3 /* non existent domain */ |
| #define NOTIMP 4 /* not implemented */ |
| #define REFUSED 5 /* query refused */ |
| #ifdef ALLOW_UPDATES |
| /* non standard */ |
| # define NOCHANGE 0xf /* update failed to change db */ |
| #endif |
| |
| /* |
| * Type values for resources and queries |
| */ |
| #define T_A 1 /* host address */ |
| #define T_NS 2 /* authoritative server */ |
| #define T_MD 3 /* mail destination */ |
| #define T_MF 4 /* mail forwarder */ |
| #define T_CNAME 5 /* canonical name */ |
| #define T_SOA 6 /* start of authority zone */ |
| #define T_MB 7 /* mailbox domain name */ |
| #define T_MG 8 /* mail group member */ |
| #define T_MR 9 /* mail rename name */ |
| #define T_NULL 10 /* null resource record */ |
| #define T_WKS 11 /* well known service */ |
| #define T_PTR 12 /* domain name pointer */ |
| #define T_HINFO 13 /* host information */ |
| #define T_MINFO 14 /* mailbox information */ |
| #define T_MX 15 /* mail routing information */ |
| #define T_TXT 16 /* text strings */ |
| #define T_RP 17 /* responsible person */ |
| #define T_AFSDB 18 /* AFS cell database */ |
| #define T_X25 19 /* X_25 calling address */ |
| #define T_ISDN 20 /* ISDN calling address */ |
| #define T_RT 21 /* router */ |
| #define T_NSAP 22 /* NSAP address */ |
| #define T_NSAP_PTR 23 /* reverse NSAP lookup (deprecated) */ |
| #define T_SIG 24 /* security signature */ |
| #define T_KEY 25 /* security key */ |
| #define T_PX 26 /* X.400 mail mapping */ |
| #define T_GPOS 27 /* geographical position (withdrawn) */ |
| #define T_AAAA 28 /* IP6 Address */ |
| #define T_LOC 29 /* Location Information */ |
| /* non standard */ |
| #define T_UINFO 100 /* user (finger) information */ |
| #define T_UID 101 /* user ID */ |
| #define T_GID 102 /* group ID */ |
| #define T_UNSPEC 103 /* Unspecified format (binary data) */ |
| /* Query type values which do not appear in resource records */ |
| #define T_AXFR 252 /* transfer zone of authority */ |
| #define T_MAILB 253 /* transfer mailbox records */ |
| #define T_MAILA 254 /* transfer mail agent records */ |
| #define T_ANY 255 /* wildcard match */ |
| |
| /* |
| * Values for class field |
| */ |
| |
| #define C_IN 1 /* the arpa internet */ |
| #define C_CHAOS 3 /* for chaos net (MIT) */ |
| #define C_HS 4 /* for Hesiod name server (MIT) (XXX) */ |
| /* Query class values which do not appear in resource records */ |
| #define C_ANY 255 /* wildcard match */ |
| |
| /* |
| * Status return codes for T_UNSPEC conversion routines |
| */ |
| #define CONV_SUCCESS 0 |
| #define CONV_OVERFLOW (-1) |
| #define CONV_BADFMT (-2) |
| #define CONV_BADCKSUM (-3) |
| #define CONV_BADBUFLEN (-4) |
| |
| #ifndef __BYTE_ORDER |
| #if (BSD >= 199103) |
| # include <machine/endian.h> |
| #else |
| #ifdef linux |
| # include <endian.h> |
| #else |
| #define __LITTLE_ENDIAN 1234 /* least-significant byte first (vax, pc) */ |
| #define __BIG_ENDIAN 4321 /* most-significant byte first (IBM, net) */ |
| #define __PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp)*/ |
| |
| #if defined(vax) || defined(ns32000) || defined(sun386) || defined(i386) || \ |
| defined(MIPSEL) || defined(_MIPSEL) || defined(BIT_ZERO_ON_RIGHT) || \ |
| defined(__alpha__) || defined(__alpha) |
| #define __BYTE_ORDER __LITTLE_ENDIAN |
| #endif |
| |
| #if defined(sel) || defined(pyr) || defined(mc68000) || defined(sparc) || \ |
| defined(is68k) || defined(tahoe) || defined(ibm032) || defined(ibm370) || \ |
| defined(MIPSEB) || defined(_MIPSEB) || defined(_IBMR2) || defined(DGUX) ||\ |
| defined(apollo) || defined(__convex__) || defined(_CRAY) || \ |
| defined(__hppa) || defined(__hp9000) || \ |
| defined(__hp9000s300) || defined(__hp9000s700) || \ |
| defined (BIT_ZERO_ON_LEFT) || defined(m68k) |
| #define __BYTE_ORDER __BIG_ENDIAN |
| #endif |
| #endif /* linux */ |
| #endif /* BSD */ |
| #endif /* __BYTE_ORDER */ |
| |
| #if !defined(__BYTE_ORDER) || \ |
| (__BYTE_ORDER != __BIG_ENDIAN && __BYTE_ORDER != __LITTLE_ENDIAN && \ |
| __BYTE_ORDER != __PDP_ENDIAN) |
| /* you must determine what the correct bit order is for |
| * your compiler - the next line is an intentional error |
| * which will force your compiles to bomb until you fix |
| * the above macros. |
| */ |
| error "Undefined or invalid __BYTE_ORDER"; |
| #endif |
| |
| /* |
| * Structure for query header. The order of the fields is machine- and |
| * compiler-dependent, depending on the byte/bit order and the layout |
| * of bit fields. We use bit fields only in int variables, as this |
| * is all ANSI requires. This requires a somewhat confusing rearrangement. |
| */ |
| |
| typedef struct { |
| unsigned id :16; /* query identification number */ |
| #if __BYTE_ORDER == __BIG_ENDIAN |
| /* fields in third byte */ |
| unsigned qr: 1; /* response flag */ |
| unsigned opcode: 4; /* purpose of message */ |
| unsigned aa: 1; /* authoritive answer */ |
| unsigned tc: 1; /* truncated message */ |
| unsigned rd: 1; /* recursion desired */ |
| /* fields in fourth byte */ |
| unsigned ra: 1; /* recursion available */ |
| unsigned pr: 1; /* primary server req'd (!standard) */ |
| unsigned unused :2; /* unused bits (MBZ as of 4.9.3a3) */ |
| unsigned rcode :4; /* response code */ |
| #endif |
| #if __BYTE_ORDER == __LITTLE_ENDIAN || __BYTE_ORDER == __PDP_ENDIAN |
| /* fields in third byte */ |
| unsigned rd :1; /* recursion desired */ |
| unsigned tc :1; /* truncated message */ |
| unsigned aa :1; /* authoritive answer */ |
| unsigned opcode :4; /* purpose of message */ |
| unsigned qr :1; /* response flag */ |
| /* fields in fourth byte */ |
| unsigned rcode :4; /* response code */ |
| unsigned unused :2; /* unused bits (MBZ as of 4.9.3a3) */ |
| unsigned pr :1; /* primary server req'd (!standard) */ |
| unsigned ra :1; /* recursion available */ |
| #endif |
| /* remaining bytes */ |
| unsigned qdcount :16; /* number of question entries */ |
| unsigned ancount :16; /* number of answer entries */ |
| unsigned nscount :16; /* number of authority entries */ |
| unsigned arcount :16; /* number of resource entries */ |
| } HEADER; |
| |
| /* |
| * Defines for handling compressed domain names |
| */ |
| #define INDIR_MASK 0xc0 |
| |
| /* |
| * Structure for passing resource records around. |
| */ |
| struct rrec { |
| int16_t r_zone; /* zone number */ |
| int16_t r_class; /* class number */ |
| int16_t r_type; /* type number */ |
| u_int32_t r_ttl; /* time to live */ |
| int r_size; /* size of data area */ |
| char *r_data; /* pointer to data */ |
| }; |
| |
| //extern u_int16_t _getshort __P((const u_char *)); |
| //extern u_int32_t _getlong __P((const u_char *)); |
| |
| /* |
| * Inline versions of get/put short/long. Pointer is advanced. |
| * |
| * These macros demonstrate the property of C whereby it can be |
| * portable or it can be elegant but rarely both. |
| */ |
| #define GETSHORT(s, cp) { \ |
| register u_char *t_cp = (u_char *)(cp); \ |
| (s) = ((u_int16_t)t_cp[0] << 8) \ |
| | ((u_int16_t)t_cp[1]) \ |
| ; \ |
| (cp) += INT16SZ; \ |
| } |
| |
| #define GETLONG(l, cp) { \ |
| register u_char *t_cp = (u_char *)(cp); \ |
| (l) = ((u_int32_t)t_cp[0] << 24) \ |
| | ((u_int32_t)t_cp[1] << 16) \ |
| | ((u_int32_t)t_cp[2] << 8) \ |
| | ((u_int32_t)t_cp[3]) \ |
| ; \ |
| (cp) += INT32SZ; \ |
| } |
| |
| #define PUTSHORT(s, cp) { \ |
| register u_int16_t t_s = (u_int16_t)(s); \ |
| register u_char *t_cp = (u_char *)(cp); \ |
| *t_cp++ = t_s >> 8; \ |
| *t_cp = t_s; \ |
| (cp) += INT16SZ; \ |
| } |
| |
| #define PUTLONG(l, cp) { \ |
| register u_int32_t t_l = (u_int32_t)(l); \ |
| register u_char *t_cp = (u_char *)(cp); \ |
| *t_cp++ = t_l >> 24; \ |
| *t_cp++ = t_l >> 16; \ |
| *t_cp++ = t_l >> 8; \ |
| *t_cp = t_l; \ |
| (cp) += INT32SZ; \ |
| } |
| |
| #endif /* !_NAMESER_H_ */ |
