db/ndbm.h

   1 /*-
   2  * Copyright (c) 1990, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * Margo Seltzer.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by the University of
  19  *      California, Berkeley and its contributors.
  20  * 4. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  *      @(#)ndbm.h      8.1 (Berkeley) 6/2/93
  37  */
  38
  39 #ifndef _NDBM_H_
  40 #define _NDBM_H_
  41
  42 #include <db.h>
  43
  44 /* Map dbm interface onto db(3). */
  45 #define DBM_RDONLY      O_RDONLY
  46
  47 /* Flags to dbm_store(). */
  48 #define DBM_INSERT      0
  49 #define DBM_REPLACE     1
  50
  51 /*
  52  * The db(3) support for ndbm(3) always appends this suffix to the
  53  * file name to avoid overwriting the user's original database.
  54  */
  55 #define DBM_SUFFIX      ".db"
  56
  57 typedef struct {
  58         char *dptr;
  59         int dsize;
  60 } datum;
  61
  62 typedef DB DBM;
  63 #define dbm_pagfno(a)   DBM_PAGFNO_NOT_AVAILABLE
  64
  65 __BEGIN_DECLS
  66 void     dbm_close __P((DBM *));
  67 int      dbm_delete __P((DBM *, datum));
  68 datum    dbm_fetch __P((DBM *, datum));
  69 datum    dbm_firstkey __P((DBM *));
  70 long     dbm_forder __P((DBM *, datum));
  71 datum    dbm_nextkey __P((DBM *));
  72 DBM     *dbm_open __P((const char *, int, int));
  73 int      dbm_store __P((DBM *, datum, datum, int));
  74 int      dbm_dirfno __P((DBM *));
  75 int      dbm_error __P((DBM *));
  76 int      dbm_clearerr __P((DBM *));
  77 __END_DECLS
  78
  79 #endif /* !_NDBM_H_ */