diff options
Diffstat (limited to 'db/hash/ndbm.c')
| -rw-r--r-- | db/hash/ndbm.c | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/db/hash/ndbm.c b/db/hash/ndbm.c deleted file mode 100644 index 83aa766c38..0000000000 --- a/db/hash/ndbm.c +++ /dev/null @@ -1,215 +0,0 @@ -/*- - * 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); -} |