diff options
Diffstat (limited to 'include/arpa/nameser.h')
| -rw-r--r-- | include/arpa/nameser.h | 259 |
1 files changed, 179 insertions, 80 deletions
diff --git a/include/arpa/nameser.h b/include/arpa/nameser.h index b9db7ba583c..39cb0c0bd7d 100644 --- a/include/arpa/nameser.h +++ b/include/arpa/nameser.h @@ -1,9 +1,9 @@ -/* $NetBSD: nameser.h,v 1.7 1994/10/26 00:56:45 cgd Exp $ */ - /* - * Copyright (c) 1983, 1989 Regents of the University of California. - * All rights reserved. - * + * ++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: @@ -14,12 +14,12 @@ * 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. + * 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 @@ -31,16 +31,60 @@ * 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. - * - * @(#)nameser.h 5.25 (Berkeley) 4/3/91 + * - + * 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 + * $Id: nameser.h,v 8.3 1995/08/21 01:27:12 vixie Exp */ #ifndef _NAMESER_H_ #define _NAMESER_H_ -#include <machine/endian.h> +#include <sys/param.h> +#if (!defined(BSD)) || (BSD < 199306) +# include <sys/bitypes.h> +#else +# include <sys/types.h> +#endif #include <sys/cdefs.h> +#ifdef _AUX_SOURCE +#include <sys/types.h> /* ech for A/UX */ +#define res_send ucb_res_send /* already def'd in libc */ +#define _res_close _ucb_res_close /* removing res_send.o from the library */ +#endif /* gives an undefined symbol... */ + +/* + * 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 19950621 /* interface version stamp */ + /* * Define constants based on rfc883 */ @@ -48,10 +92,12 @@ #define MAXDNAME 256 /* maximum domain name */ #define MAXCDNAME 255 /* maximum compressed domain name */ #define MAXLABEL 63 /* maximum length of domain label */ - /* Number of bytes of fixed size data in query structure */ -#define QFIXEDSZ 4 - /* number of bytes of fixed size data in resource record */ -#define RRFIXEDSZ 10 +#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 @@ -64,16 +110,18 @@ #define QUERY 0x0 /* standard query */ #define IQUERY 0x1 /* inverse query */ #define STATUS 0x2 /* nameserver status query */ -/*#define xxx 0x3 /* 0x3 reserved */ - /* non standard */ -#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 */ +/*#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 @@ -84,8 +132,10 @@ #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 */ +# define NOCHANGE 0xf /* update failed to change db */ +#endif /* * Type values for resources and queries @@ -94,7 +144,7 @@ #define T_NS 2 /* authoritative server */ #define T_MD 3 /* mail destination */ #define T_MF 4 /* mail forwarder */ -#define T_CNAME 5 /* connonical name */ +#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 */ @@ -106,16 +156,24 @@ #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_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 lookup for NSAP */ +#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) */ -#define T_SA 200 /* shuffle address */ /* 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 */ @@ -125,60 +183,103 @@ /* * Values for class field */ + #define C_IN 1 /* the arpa internet */ -#define C_CHAOS 3 /* for chaos net at MIT */ -#define C_HS 4 /* for Hesiod name server at MIT */ +#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 +#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, in our case, the bits within a byte are assignd - * least significant first, while the order of transmition is most - * significant first. This requires a somewhat confusing rearrangement. + * 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 { - u_short id; /* query identification number */ + unsigned id :16; /* query identification number */ #if BYTE_ORDER == BIG_ENDIAN /* fields in third byte */ - u_char qr:1; /* response flag */ - u_char opcode:4; /* purpose of message */ - u_char aa:1; /* authoritive answer */ - u_char tc:1; /* truncated message */ - u_char rd:1; /* recursion desired */ + 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 */ - u_char ra:1; /* recursion available */ - u_char pr:1; /* primary server required (non standard) */ - u_char unused:2; /* unused bits */ - u_char rcode:4; /* response code */ + unsigned ra: 1; /* recursion available */ + unsigned pr:1; /* primary server required (non 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 */ - u_char rd:1; /* recursion desired */ - u_char tc:1; /* truncated message */ - u_char aa:1; /* authoritive answer */ - u_char opcode:4; /* purpose of message */ - u_char qr:1; /* response flag */ + 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 */ - u_char rcode:4; /* response code */ - u_char unused:2; /* unused bits */ - u_char pr:1; /* primary server required (non standard) */ - u_char ra:1; /* recursion available */ + unsigned rcode :4; /* response code */ + unsigned unused :2; /* unused bits (MBZ as of 4.9.3a3) */ + unsigned pr:1; /* primary server required (non standard) */ + unsigned ra :1; /* recursion available */ #endif /* remaining bytes */ - u_short qdcount; /* number of question entries */ - u_short ancount; /* number of answer entries */ - u_short nscount; /* number of authority entries */ - u_short arcount; /* number of resource entries */ + 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; /* @@ -198,20 +299,21 @@ struct rrec { char *r_data; /* pointer to data */ }; -extern u_int16_t _getshort(); -extern u_int32_t _getlong(); +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; we assume that both arguments - * are lvalues and will already be in registers. - * cp MUST be 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) += sizeof(u_int16_t); \ + | ((u_int16_t)t_cp[1]) \ + ; \ + (cp) += INT16SZ; \ } #define GETLONG(l, cp) { \ @@ -219,8 +321,9 @@ extern u_int32_t _getlong(); (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) += sizeof(u_int32_t); \ + | ((u_int32_t)t_cp[3]) \ + ; \ + (cp) += INT32SZ; \ } #define PUTSHORT(s, cp) { \ @@ -228,13 +331,9 @@ extern u_int32_t _getlong(); register u_char *t_cp = (u_char *)(cp); \ *t_cp++ = t_s >> 8; \ *t_cp = t_s; \ - (cp) += sizeof(u_int16_t); \ + (cp) += INT16SZ; \ } -/* - * Warning: PUTLONG --no-longer-- destroys its first argument. if you - * were depending on this "feature", you will lose. - */ #define PUTLONG(l, cp) { \ register u_int32_t t_l = (u_int32_t)(l); \ register u_char *t_cp = (u_char *)(cp); \ @@ -242,7 +341,7 @@ extern u_int32_t _getlong(); *t_cp++ = t_l >> 16; \ *t_cp++ = t_l >> 8; \ *t_cp = t_l; \ - (cp) += sizeof(u_int32_t); \ + (cp) += INT32SZ; \ } #endif /* !_NAMESER_H_ */ |