-/* db.h 4.3 86/06/04 */
-
/*
- * Copyright (c) 1985 Regents of the University of California
- * All Rights Reserved
+ * Copyright (c) 1985 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that the above copyright notice and this paragraph are
+ * duplicated in all such forms and that any documentation,
+ * advertising materials, and other materials related to such
+ * distribution and use acknowledge that the software was developed
+ * by the University of California, Berkeley. The name of the
+ * University may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * @(#)db.h 4.14 (Berkeley) 6/18/88
*/
/*
*/
struct databuf {
struct databuf *d_next; /* linked list */
- short d_refcount; /* reference count */
+ u_long d_ttl; /* time to live */
+ short d_flags;
short d_zone; /* zone number */
short d_class; /* class number */
short d_type; /* type number */
- u_long d_ttl; /* time to live */
- int d_size; /* size of data area */
- char d_data[MAXDATA]; /* malloc'ed as needed */
+ short d_mark; /* place to mark data */
+ short d_size; /* size of data area */
+ u_long d_nstime; /* NS response time, milliseconds */
+ char d_data[MAXDATA]; /* the data is malloc'ed to size */
};
#define DATASIZE(n) (sizeof(struct databuf) - MAXDATA + n)
+/*
+ * d_flags definitions
+ */
+#define DB_F_HINT 0x01 /* databuf belongs to fcachetab */
+
struct namebuf {
char *n_dname; /* domain name */
+ 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 */
/*
* Flags to updatedb
*/
-#define DB_NODATA 0x1 /* data should not exist */
-#define DB_MEXIST 0x2 /* data must exist */
-#define DB_DELETE 0x4 /* delete data if it exists */
+#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_Z_CACHE (0) /* cache-zone-only db_dump() */
+#define DB_Z_ALL (-1) /* normal db_dump() */
/*
* Error return codes
#define NOTYPE -3
#define NODATA -4
#define DATAEXISTS -5
-#define NODBFILE -6
+#define NODBFILE -6
#define TOOMANYZONES -7
#define GOODDB -8
#define NEWDB -9
+#define AUTH -10
extern struct hashbuf *hashtab; /* root hash table */
extern struct invbuf *invtab[]; /* inverse hash table */
+extern struct hashbuf *fcachetab; /* hash table for cache read from file*/
extern struct namebuf *nlookup();
extern struct namebuf *savename();
extern struct databuf *savedata();
+extern struct databuf *rm_datum();
extern struct hashbuf *savehash();
extern struct invbuf *saveinv();
extern char *savestr();
+extern char *malloc(), *realloc(), *calloc();