Import (trimmed) ISC bind-8.1.2-t3b. This will be updated to 8.1.2 on

final release.

Obtained from:  ftp.isc.org

1 files changed, 233 insertions, 0 deletions

diff --git a/contrib/bind/bin/named/db_defs.h b/contrib/bind/bin/named/db_defs.h
new file mode 100644
index 0000000..ab93480
--- /dev/null
+++ b/contrib/bind/bin/named/db_defs.h
@@ -0,0 +1,233 @@
+/*
+ *	from db.h	4.16 (Berkeley) 6/1/90
+ *	$Id: db_defs.h,v 8.17 1998/02/17 17:17:43 vixie Exp $
+ */
+
+/* Copyright (c) 1985, 1990
+ *    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.
+ */
+
+/* Portions Copyright (c) 1996, 1997 by Internet Software Consortium.
+ *
+ * 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.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+ * CONSORTIUM 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.
+ */
+
+/*
+ * Global definitions for data base routines.
+ */
+
+#define INVBLKSZ	7	/* # of namebuf pointers per block */
+#define INVHASHSZ	919	/* size of inverse hash table */
+
+	/* max length of data in RR data field */
+#define MAXDATA		(2*MAXDNAME + 5*INT32SZ)
+
+#define DB_ROOT_TIMBUF	3600
+#define TIMBUF		300
+
+#define	DICT_INDEXBITS	24
+#define	DICT_MAXLENGTH	127
+#define	DICT_INSERT_P	0x0001
+
+/*
+ * Hash table structures.
+ */
+struct databuf {
+	struct databuf	*d_next;	/* linked list */
+	struct nameser	*d_ns;		/* NS from whence this came */
+	u_int32_t	d_ttl;		/* time to live */
+					/* if d_zone == DB_Z_CACHE, then
+					 * d_ttl is actually the time when
+					 * the record will expire.
+					 * otherwise (for authoritative
+					 * primary and secondary zones),
+					 * d_ttl is the time to live.
+					 */
+	unsigned	d_flags :7;	/* see below */
+	unsigned	d_cred :3;	/* DB_C_{??????} */
+	unsigned	d_clev :6;
+	u_int16_t	d_zone;		/* zone number or 0 for the cache */
+	int16_t		d_class;	/* class number */
+	int16_t		d_type;		/* type number */
+	int16_t		d_size;		/* size of data area */
+	u_int32_t	d_rcnt;
+	unsigned	d_rcode :4;	/* rcode for negative caching */
+	unsigned	d_mark :12;	/* place to mark data */
+	u_int16_t       d_nstime;       /* NS response time, milliseconds */
+	u_char		d_data[sizeof(void*)]; /* dynamic (padded) */
+};
+#define DATASIZE(n) (sizeof(struct databuf) - sizeof(void*) + n)
+
+#ifdef BIND_UPDATE
+/*
+ * d_mark definitions
+ */
+#define D_MARK_DELETED  0x01
+#define D_MARK_ADDED	0x02
+#define D_MARK_FOUND	0x04
+#endif
+
+/*
+ * d_flags definitions
+ */
+#define DB_F_HINT	0x01		/* databuf belongs to fcachetab */
+#define DB_F_ACTIVE	0x02		/* databuf is linked into a cache */
+#define DB_F_FREE	0x04		/* databuf has been freed */
+
+/*
+ * d_cred definitions
+ */
+#define	DB_C_ZONE	4		/* authoritative zone - best */
+#define	DB_C_AUTH	3		/* authoritative answer */
+#define	DB_C_ANSWER	2		/* non-authoritative answer */
+#define	DB_C_ADDITIONAL	1		/* additional data */
+#define	DB_C_CACHE	0		/* cache - worst */
+
+struct namebuf {
+	u_int		n_hashval;	/* hash value of _n_name */
+	struct namebuf	*n_next;	/* linked list */
+	struct databuf	*n_data;	/* data records */
+	struct namebuf	*n_parent;	/* parent domain */
+	struct hashbuf	*n_hash;	/* hash table for children */
+	char		_n_name[sizeof(void*)];	/* Counted str (dynamic). */
+};
+#define	NAMESIZE(n)	(sizeof(struct namebuf) - sizeof(void*) + 1 + n + 1)
+#define	NAMELEN(nb)	(((u_char *)((nb)._n_name))[0])
+#define	NAME(nb)	((nb)._n_name + 1)
+
+struct hashbuf {
+	int		h_size;		/* size of hash table */
+	int		h_cnt;		/* number of entries */
+	struct namebuf	*h_tab[1];	/* allocated as needed */
+};
+#define HASHSIZE(s) (sizeof(struct hashbuf) + (s-1) * sizeof(struct namebuf *))
+
+#define HASHSHIFT	3
+#define HASHMASK	0x1f
+
+/*
+ * Flags to updatedb
+ */
+#define DB_NODATA	0x01	/* data should not exist */
+#define DB_MEXIST	0x02	/* data must exist */
+#define DB_DELETE	0x04	/* delete data if it exists */
+#define DB_NOTAUTH	0x08	/* must not update authoritative data */
+#define DB_NOHINTS      0x10	/* don't reflect update in fcachetab */
+#define DB_PRIMING	0x20	/* is this update the result of priming? */
+
+#define DB_Z_CACHE	0	/* cache-zone-only db_dump() */
+#define DB_Z_ALL	65535	/* normal db_dump() */
+#define	DB_Z_SPECIAL(z)	((z) == DB_Z_CACHE || (z) == DB_Z_ALL)
+
+/*
+ * Error return codes
+ */
+#define OK		0
+#define NONAME		(-1)
+#define NOCLASS		(-2)
+#define NOTYPE		(-3)
+#define NODATA		(-4)
+#define DATAEXISTS	(-5)
+#define NODBFILE	(-6)
+#define TOOMANYZONES	(-7)
+#define GOODDB		(-8)
+#define NEWDB		(-9)
+#define AUTH		(-10)
+#ifdef BIND_UPDATE
+#define SERIAL		(-11)
+#endif
+
+/*
+ * getnum() options
+ */
+#define GETNUM_NONE	0x00	/* placeholder */
+#define GETNUM_SERIAL	0x01	/* treat as serial number */
+#define GETNUM_SCALED	0x02	/* permit "k", "m" suffixes, scale result */
+
+/*
+ * Database access abstractions.
+ */
+#define	foreach_rr(dp, np, ty, cl, zn) \
+	for ((dp) = (np)->n_data; (dp) != NULL; (dp) = (dp)->d_next) \
+		if ((cl) != C_ANY && (cl) != (dp)->d_class) \
+			continue; \
+		else if ((ty) != T_ANY && (ty) != (dp)->d_type) \
+			continue; \
+		else if (((zn) == DB_Z_CACHE) \
+			 ? stale(dp) \
+			 : (zn) != (dp)->d_zone) \
+			continue; \
+		else if ((dp)->d_rcode) \
+			continue; \
+		else \
+			/* Caller code follows in sequence. */
+
+#define DRCNTINC(x) \
+	do { \
+		if (++((x)->d_rcnt) == 0) \
+			ns_panic(ns_log_db, 1, "++d_rcnt == 0"); \
+	} while (0)
+
+#define DRCNTDEC(x) \
+	do { \
+		if (((x)->d_rcnt)-- == 0) \
+			ns_panic(ns_log_db, 1, "d_rcnt-- == 0"); \
+	} while (0)