aboutsummaryrefslogtreecommitdiffstats
path: root/include/arpa/nameser.h
diff options
context:
space:
mode:
authorPaul Traina <pst@FreeBSD.org>1994-09-25 02:12:49 +0000
committerPaul Traina <pst@FreeBSD.org>1994-09-25 02:12:49 +0000
commit1363f04ce1b83359b8e4f3fbde56a6ebcee57209 (patch)
treea71412a79b4754c5fb0d8868e5fb690fde4a7fbb /include/arpa/nameser.h
parent08a0aca6e27cc8a1324334e065844f12e3a904d7 (diff)
downloadsrc-1363f04ce1b83359b8e4f3fbde56a6ebcee57209.tar.gz
src-1363f04ce1b83359b8e4f3fbde56a6ebcee57209.zip
get* rework and new bind code
Notes
Notes: svn path=/head/; revision=3070
Diffstat (limited to 'include/arpa/nameser.h')
-rw-r--r--include/arpa/nameser.h284
1 files changed, 136 insertions, 148 deletions
diff --git a/include/arpa/nameser.h b/include/arpa/nameser.h
index 81e71fbde8e4..dfaa3dbe59f2 100644
--- a/include/arpa/nameser.h
+++ b/include/arpa/nameser.h
@@ -30,7 +30,6 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
- * @(#)nameser.h 8.2 (Berkeley) 2/16/94
* -
* Portions Copyright (c) 1993 by Digital Equipment Corporation.
*
@@ -51,142 +50,134 @@
* SOFTWARE.
* -
* --Copyright--
+ *
+ * @(#)nameser.h 8.2 (Berkeley) 2/16/94
+ * From Id: nameser.h,v 4.9.1.15 1994/07/19 22:51:24 vixie Exp
*/
-#ifndef _ARPA_NAMESER_H_
-#define _ARPA_NAMESER_H_
+#ifndef _NAMESER_H_
+#define _NAMESER_H_
+#include <sys/param.h>
#include <sys/types.h>
+#include <sys/cdefs.h>
+#include <machine/endian.h>
+
+
+/*
+ * 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 */
- /* 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 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
+#define NAMESERVER_PORT 53
/*
- * Currently defined opcodes
+ * Currently define d opcodes
*/
-#define QUERY 0x0 /* standard query */
-#define IQUERY 0x1 /* inverse query */
-#define STATUS 0x2 /* nameserver status query */
-/*#define xxx 0x3 /* 0x3 reserved */
+#define QUERY 0x0 /* standard query */
+#define IQUERY 0x1 /* inverse query */
+#define STATUS 0x2 /* nameserver status query */
+ /* 0x3 reserved */
/* 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 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 ZONEINIT 0xe /* initial zone transfer */
+#define ZONEREF 0xf /* incremental zone referesh */
/*
- * Currently defined response codes
+ * Currently define d response codes
*/
-#define NOERROR 0 /* no error */
-#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 */
+#define NOERROR 0 /* no error */
+#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 */
/* non standard */
-#define NOCHANGE 0xf /* update failed to change db */
+#define NOCHANGE 0xf /* update failed to change db */
/*
* 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 /* connonical 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_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 /* connonical 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 lookup for NSAP */
+#define T_NSAP_PTR 23 /* reverse NSAP lookup (deprecated) */
/* 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_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 */
-#define T_MAILA 254 /* transfer mail agent records */
-#define T_ANY 255 /* wildcard match */
+#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) */
+#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 */
+#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
-#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(apollo) || defined(hp9000) || defined(hp9000s300) || \
- defined (BIT_ZERO_ON_LEFT)
-#define BYTE_ORDER BIG_ENDIAN
-#endif
-#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
+#define CONV_SUCCESS 0
+#define CONV_OVERFLOW (-1)
+#define CONV_BADFMT (-2)
+#define CONV_BADCKSUM (-3)
+#define CONV_BADBUFLEN (-4)
/*
* Structure for query header. The order of the fields is machine- and
@@ -196,103 +187,100 @@
*/
typedef struct {
- u_int16_t id; /* query identification number */
+ unsigned id :16; /* query identification number */
#if BYTE_ORDER == BIG_ENDIAN
/* fields in third byte */
- u_int qr:1; /* response flag */
- u_int opcode:4; /* purpose of message */
- u_int aa:1; /* authoritive answer */
- u_int tc:1; /* truncated message */
- u_int 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_int ra:1; /* recursion available */
- u_int pr:1; /* primary server required (non standard) */
- u_int unused:2; /* unused bits */
- u_int rcode:4; /* response code */
+ 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 */
- u_int rd:1; /* recursion desired */
- u_int tc:1; /* truncated message */
- u_int aa:1; /* authoritive answer */
- u_int opcode:4; /* purpose of message */
- u_int 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_int rcode:4; /* response code */
- u_int unused:2; /* unused bits */
- u_int pr:1; /* primary server required (non standard) */
- u_int 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 req'd (!standard) */
+ unsigned ra :1; /* recursion available */
#endif
/* remaining bytes */
- u_int16_t qdcount; /* number of question entries */
- u_int16_t ancount; /* number of answer entries */
- u_int16_t nscount; /* number of authority entries */
- u_int16_t 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;
/*
* Defines for handling compressed domain names
*/
-#define INDIR_MASK 0xc0
+#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 */
+ 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 */
+ int r_size; /* size of data area */
+ 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 also assume that a "u_int16_t" holds 2 "chars"
- * and that a "u_int32_t" holds 4 "chars".
*
* These macros demonstrate the property of C whereby it can be
- * portable or it can be elegant but never both.
+ * portable or it can be elegant but rarely both.
*/
-#define GETSHORT(s, cp) { \
+#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) += 2; \
+ (s) = ((u_int16_t)t_cp[0] << 8) \
+ | ((u_int16_t)t_cp[1]) \
+ ; \
+ (cp) += INT16SZ; \
}
-#define GETLONG(l, cp) { \
+#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) += 4; \
+ (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) { \
+#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) += 2; \
+ (cp) += INT16SZ; \
}
-/*
- * Warning: PUTLONG --no-longer-- destroys its first argument. if you
- * were depending on this "feature", you will lose.
- */
-#define PUTLONG(l, cp) { \
+#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) += 4; \
+ (cp) += INT32SZ; \
}
#endif /* !_NAMESER_H_ */