111 lines
3.0 KiB
C
111 lines
3.0 KiB
C
/*-
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* SPDX-License-Identifier: BSD-4-Clause
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*
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* Copyright (c) 1995
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* Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
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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 Bill Paul.
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* 4. Neither the name of the author nor the names of any co-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 Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
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* FOR ANY 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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#include <db.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <paths.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <rpcsvc/yp.h>
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#include "ypxfr_extern.h"
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#define PERM_SECURE (S_IRUSR|S_IWUSR)
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/*
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* Open a DB database read/write
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*/
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DB *
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yp_open_db_rw(const char *domain, const char *map, const int flags)
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{
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DB *dbp;
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char buf[1025];
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yp_errno = YP_TRUE;
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if (map[0] == '.' || strchr(map, '/')) {
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yp_errno = YP_BADARGS;
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return (NULL);
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}
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#define FLAGS O_RDWR|O_EXLOCK|O_EXCL|O_CREAT
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snprintf(buf, sizeof(buf), "%s/%s/%s", yp_dir, domain, map);
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dbp = dbopen(buf,flags ? flags : FLAGS,PERM_SECURE,DB_HASH,&openinfo);
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if (dbp == NULL) {
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switch (errno) {
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case ENOENT:
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yp_errno = YP_NOMAP;
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break;
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case EFTYPE:
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yp_errno = YP_BADDB;
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break;
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default:
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yp_errno = YP_YPERR;
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break;
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}
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}
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return (dbp);
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}
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int
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yp_put_record(DB *dbp, DBT *key, DBT *data, int allow_overwrite)
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{
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int rval;
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if ((rval = (dbp->put)(dbp,key,data, allow_overwrite ? 0 :
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R_NOOVERWRITE))) {
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switch (rval) {
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case 1:
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return(YP_FALSE);
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break;
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case -1:
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default:
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(void)(dbp->close)(dbp);
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return(YP_BADDB);
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break;
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}
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}
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return(YP_TRUE);
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}
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