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-rw-r--r--db/hash/ndbm.c215
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diff --git a/db/hash/ndbm.c b/db/hash/ndbm.c
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--- a/db/hash/ndbm.c
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-/*-
- * Copyright (c) 1990, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Margo Seltzer.
- *
- * 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.
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)ndbm.c 8.4 (Berkeley) 7/21/94";
-#endif /* LIBC_SCCS and not lint */
-
-/*
- * This package provides a dbm compatible interface to the new hashing
- * package described in db(3).
- */
-
-#include <sys/param.h>
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-
-#include <ndbm.h>
-#include "hash.h"
-
-/*
- * Returns:
- * *DBM on success
- * NULL on failure
- */
-extern DBM *
-dbm_open(file, flags, mode)
- const char *file;
- int flags, mode;
-{
- DBM *db;
- HASHINFO info;
- const size_t len = strlen(file) + sizeof (DBM_SUFFIX);
-#ifdef __GNUC__
- char path[len];
-#else
- char *path = malloc(len);
- if (path == NULL)
- return NULL;
-#endif
-
- info.bsize = 4096;
- info.ffactor = 40;
- info.nelem = 1;
- info.cachesize = 0;
- info.hash = NULL;
- info.lorder = 0;
- (void)strcpy(path, file);
- (void)strcat(path, DBM_SUFFIX);
- db = (DBM *)__hash_open(path, flags, mode, &info, 0);
-#ifndef __GNUC__
- free(path);
-#endif
- return db;
-}
-
-extern void
-dbm_close(db)
- DBM *db;
-{
- (void)(db->close)(db);
-}
-
-/*
- * Returns:
- * DATUM on success
- * NULL on failure
- */
-extern datum
-dbm_fetch(db, key)
- DBM *db;
- datum key;
-{
- datum retval;
- int status;
-
- status = (db->get)(db, (DBT *)&key, (DBT *)&retval, 0);
- if (status) {
- retval.dptr = NULL;
- retval.dsize = 0;
- }
- return (retval);
-}
-
-/*
- * Returns:
- * DATUM on success
- * NULL on failure
- */
-extern datum
-dbm_firstkey(db)
- DBM *db;
-{
- int status;
- datum retdata, retkey;
-
- status = (db->seq)(db, (DBT *)&retkey, (DBT *)&retdata, R_FIRST);
- if (status)
- retkey.dptr = NULL;
- return (retkey);
-}
-
-/*
- * Returns:
- * DATUM on success
- * NULL on failure
- */
-extern datum
-dbm_nextkey(db)
- DBM *db;
-{
- int status;
- datum retdata, retkey;
-
- status = (db->seq)(db, (DBT *)&retkey, (DBT *)&retdata, R_NEXT);
- if (status)
- retkey.dptr = NULL;
- return (retkey);
-}
-/*
- * Returns:
- * 0 on success
- * <0 failure
- */
-extern int
-dbm_delete(db, key)
- DBM *db;
- datum key;
-{
- int status;
-
- status = (db->del)(db, (DBT *)&key, 0);
- if (status)
- return (-1);
- else
- return (0);
-}
-
-/*
- * Returns:
- * 0 on success
- * <0 failure
- * 1 if DBM_INSERT and entry exists
- */
-extern int
-dbm_store(db, key, content, flags)
- DBM *db;
- datum key, content;
- int flags;
-{
- return ((db->put)(db, (DBT *)&key, (DBT *)&content,
- (flags == DBM_INSERT) ? R_NOOVERWRITE : 0));
-}
-
-extern int
-dbm_error(db)
- DBM *db;
-{
- HTAB *hp;
-
- hp = (HTAB *)db->internal;
- return (hp->errnum);
-}
-
-extern int
-dbm_clearerr(db)
- DBM *db;
-{
- HTAB *hp;
-
- hp = (HTAB *)db->internal;
- hp->errnum = 0;
- return (0);
-}
-
-extern int
-dbm_dirfno(db)
- DBM *db;
-{
- return(((HTAB *)db->internal)->fp);
-}