f4fb444bd9
- use fgetln() instead of fgets() - store info in internal buffer - fix \\ support - count line numbers internally, so \\ lines don't mess up count * ypdb_store(): - ensure that the length of key or val doesn't exceed YPMAXRECORD * makedbm, mknetid, revnetgroup, stdethers, stdhosts: - improve error handling - take advantage of rewritten read_line(), and cleanup line parsing - don't print trailing ` ' for key/val pairs with an empty val * Makefile.yp: - fix up building of ypservers (from Chuck Cranor) * ypinit.sh: - remove leading spaces in variable assignment (from Chuck Cranor)
221 lines
4.7 KiB
C
221 lines
4.7 KiB
C
/* $NetBSD: ypdb.c,v 1.5 1997/11/01 14:24:54 lukem Exp $ */
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/*
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Margo Seltzer.
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*
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* This code is derived from ndbm module of BSD4.4 db (hash) by
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* Mats O Jansson
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: ypdb.c,v 1.5 1997/11/01 14:24:54 lukem Exp $");
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#endif
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#include <sys/param.h>
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#include <sys/types.h>
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#include <db.h>
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include <rpcsvc/yp.h>
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#include "ypdb.h"
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/*
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* Returns:
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* *DBM on success
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* NULL on failure
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*/
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DBM *
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ypdb_open(file, flags, mode)
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const char *file;
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int flags, mode;
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{
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char path[MAXPATHLEN], *cp;
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DBM *db;
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BTREEINFO info;
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cp = strrchr(file, '.');
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snprintf(path, sizeof(path), "%s%s", file,
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(cp != NULL && strcmp(cp, ".db") == 0) ? "" : YPDB_SUFFIX);
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/* try our btree format first */
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info.flags = 0;
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info.cachesize = 0;
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info.maxkeypage = 0;
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info.minkeypage = 0;
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info.psize = 0;
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info.compare = NULL;
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info.prefix = NULL;
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info.lorder = 0;
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db = (DBM *)dbopen(path, flags, mode, DB_BTREE, (void *)&info);
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if (db != NULL || errno != EFTYPE)
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return (db);
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/* fallback to standard hash (for sendmail's aliases.db) */
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db = (DBM *)dbopen(path, flags, mode, DB_HASH, NULL);
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return (db);
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}
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void
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ypdb_close(db)
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DBM *db;
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{
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(void)(db->close)(db);
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}
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/*
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* Returns:
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* DATUM on success
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* NULL on failure
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*/
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datum
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ypdb_fetch(db, key)
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DBM *db;
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datum key;
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{
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datum retval;
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int status;
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status = (db->get)(db, (DBT *)&key, (DBT *)&retval, 0);
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if (status) {
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retval.dptr = NULL;
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retval.dsize = 0;
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}
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return (retval);
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}
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/*
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* Returns:
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* DATUM on success
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* NULL on failure
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*/
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datum
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ypdb_firstkey(db)
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DBM *db;
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{
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int status;
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datum retdata, retkey;
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status = (db->seq)(db, (DBT *)&retkey, (DBT *)&retdata, R_FIRST);
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if (status)
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retkey.dptr = NULL;
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return (retkey);
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}
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/*
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* Returns:
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* DATUM on success
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* NULL on failure
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*/
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datum
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ypdb_nextkey(db)
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DBM *db;
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{
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int status;
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datum retdata, retkey;
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status = (db->seq)(db, (DBT *)&retkey, (DBT *)&retdata, R_NEXT);
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if (status)
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retkey.dptr = NULL;
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return (retkey);
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}
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/*
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* Returns:
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* DATUM on success
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* NULL on failure
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*/
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datum
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ypdb_setkey(db, key)
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DBM *db;
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datum key;
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{
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int status;
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datum retdata;
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status = (db->seq)(db, (DBT *)&key, (DBT *)&retdata, R_CURSOR);
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if (status)
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key.dptr = NULL;
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return (key);
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}
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/*
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* Returns:
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* 0 on success
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* <0 failure
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*/
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int
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ypdb_delete(db, key)
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DBM *db;
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datum key;
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{
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int status;
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status = (db->del)(db, (DBT *)&key, 0);
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if (status)
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return (-1);
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else
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return (0);
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}
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/*
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* Returns:
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* 0 on success
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* <0 failure
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* 1 if YPDB_INSERT and entry exists
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*/
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int
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ypdb_store(db, key, content, flags)
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DBM *db;
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datum key, content;
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int flags;
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{
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if (key.dsize > YPMAXRECORD || content.dsize > YPMAXRECORD)
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return -1;
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return ((db->put)(db, (DBT *)&key, (DBT *)&content,
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(flags == YPDB_INSERT) ? R_NOOVERWRITE : 0));
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}
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