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Diffstat (limited to 'contrib/bind/named/db_defs.h')
| -rw-r--r-- | contrib/bind/named/db_defs.h | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/contrib/bind/named/db_defs.h b/contrib/bind/named/db_defs.h new file mode 100644 index 0000000..7356818 --- /dev/null +++ b/contrib/bind/named/db_defs.h @@ -0,0 +1,183 @@ +/* + * from db.h 4.16 (Berkeley) 6/1/90 + * $Id: db_defs.h,v 8.4 1996/05/17 09:10:46 vixie Exp $ + */ + +/* + * ++Copyright++ 1985, 1990 + * - + * 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. + * - + * --Copyright-- + */ + +/* + * 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 2048 + +#define DB_ROOT_TIMBUF 3600 +#define TIMBUF 300 + +/* + * Hash table structures. + */ +struct databuf { + struct databuf *d_next; /* linked list */ + 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; + 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_mark; /* place to mark data */ + int16_t d_size; /* size of data area */ +#ifdef NCACHE + int16_t d_rcode; /* rcode added for negative caching */ +#endif + int16_t d_rcnt; +#ifdef STATS + struct nameser *d_ns; /* NS from whence this came */ +#endif +/*XXX*/ u_int32_t d_nstime; /* NS response time, milliseconds */ + u_char d_data[sizeof(char*)]; /* malloc'd (padded) */ +}; +#define DATASIZE(n) (sizeof(struct databuf) - sizeof(char*) + n) + +/* + * d_flags definitions + */ +#define DB_F_HINT 0x01 /* databuf belongs to fcachetab */ + +/* + * 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_dname */ + 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, malloc'ed. */ +}; +#define NAMESIZE(n) (sizeof(struct namebuf) - sizeof(void*) + 1 + n + 1) +#define NAMELEN(nb) ((nb)._n_name[0]) +#define NAME(nb) ((nb)._n_name + 1) + +#ifdef INVQ +struct invbuf { + struct invbuf *i_next; /* linked list */ + struct namebuf *i_dname[INVBLKSZ]; /* domain name */ +}; +#endif + +struct hashbuf { + int h_size; /* size of hash table */ + int h_cnt; /* number of entries */ + struct namebuf *h_tab[1]; /* malloc'ed as needed */ +}; +#define HASHSIZE(s) (s*sizeof(struct namebuf *) + 2*sizeof(int)) + +#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 (-1) /* normal db_dump() */ + +/* + * 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 + +/* + * 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 */ |
