GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.sbin/ypserv/mkalias/../common/ypdb.c Lines: 0 61 0.0 %
Date: 2017-11-13 Branches: 0 12 0.0 %

Line Branch Exec Source
1
/*	$OpenBSD: ypdb.c,v 1.12 2015/01/16 06:40:22 deraadt Exp $ */
2
3
/*
4
 * Copyright (c) 1990, 1993
5
 *	The Regents of the University of California.  All rights reserved.
6
 * All rights reserved.
7
 *
8
 * This code is derived from software contributed to Berkeley by
9
 * Margo Seltzer.
10
 *
11
 * This code is derived from ndbm module of BSD4.4 db (hash) by
12
 * Mats O Jansson
13
 *
14
 * Redistribution and use in source and binary forms, with or without
15
 * modification, are permitted provided that the following conditions
16
 * are met:
17
 * 1. Redistributions of source code must retain the above copyright
18
 *    notice, this list of conditions and the following disclaimer.
19
 * 2. Redistributions in binary form must reproduce the above copyright
20
 *    notice, this list of conditions and the following disclaimer in the
21
 *    documentation and/or other materials provided with the distribution.
22
 * 3. Neither the name of the University nor the names of its contributors
23
 *    may be used to endorse or promote products derived from this software
24
 *    without specific prior written permission.
25
 *
26
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
27
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
28
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
30
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36
 * SUCH DAMAGE.
37
 */
38
39
#include <sys/types.h>
40
#include <stdio.h>
41
#include <string.h>
42
43
#include <rpcsvc/yp.h>
44
45
#include "ypdb.h"
46
47
/*
48
 * Returns:
49
 *	*DBM on success
50
 *	NULL on failure
51
 */
52
extern DBM *
53
ypdb_open(const char *file, int flags, int mode)
54
{
55
	BTREEINFO info;
56
	char path[PATH_MAX];
57
	DBM *db;
58
59
	memset(&info, 0, sizeof info);
60
	info.flags = 0;
61
	info.cachesize = 0;
62
	info.maxkeypage = 0;
63
	info.minkeypage = 0;
64
	info.psize = 0;
65
	info.compare = NULL;
66
	info.prefix = NULL;
67
	info.lorder = 0;
68
	snprintf(path, sizeof(path), "%s%s", file, YPDB_SUFFIX);
69
	db = (DBM *)dbopen(path, flags, mode, DB_BTREE, (void *)&info);
70
	return (db);
71
}
72
73
/*
74
 * Returns:
75
 *	*DBM on success
76
 *	NULL on failure
77
 */
78
extern DBM *
79
ypdb_open_suf(const char *file, int flags, int mode)
80
{
81
	BTREEINFO info;
82
	DBM *db;
83
84
	memset(&info, 0, sizeof info);
85
	info.flags = 0;
86
	info.cachesize = 0;
87
	info.maxkeypage = 0;
88
	info.minkeypage = 0;
89
	info.psize = 0;
90
	info.compare = NULL;
91
	info.prefix = NULL;
92
	info.lorder = 0;
93
	db = (DBM *)dbopen(file, flags, mode, DB_BTREE, (void *)&info);
94
	return (db);
95
}
96
97
extern void
98
ypdb_close(DBM *db)
99
{
100
	(void)(db->close)(db);
101
}
102
103
/*
104
 * Returns:
105
 *	DATUM on success
106
 *	NULL on failure
107
 */
108
extern datum
109
ypdb_fetch(DBM *db, datum key)
110
{
111
	datum retval;
112
	DBT nk, nd;
113
	int status;
114
115
	nk.data = key.dptr;
116
	nk.size = key.dsize;
117
118
	status = (db->get)(db, &nk, &nd, 0);
119
	if (status) {
120
		retval.dptr = NULL;
121
		retval.dsize = 0;
122
	} else {
123
		retval.dptr = nd.data;
124
		retval.dsize = nd.size;
125
	}
126
	return (retval);
127
}
128
129
/*
130
 * Returns:
131
 *	DATUM on success
132
 *	NULL on failure
133
 */
134
135
extern datum
136
ypdb_firstkey(DBM *db)
137
{
138
	int status;
139
	datum retkey;
140
	DBT nk, nd;
141
142
	status = (db->seq)(db, &nk, &nd, R_FIRST);
143
	if (status) {
144
		retkey.dptr = NULL;
145
		retkey.dsize = 0;
146
	} else {
147
		retkey.dptr = nk.data;
148
		retkey.dsize = nk.size;
149
	}
150
	return (retkey);
151
}
152
153
/*
154
 * Returns:
155
 *	DATUM on success
156
 *	NULL on failure
157
 */
158
159
extern datum
160
ypdb_nextkey(DBM *db)
161
{
162
	int status;
163
	datum retkey;
164
	DBT nk, nd;
165
166
	status = (db->seq)(db, &nk, &nd, R_NEXT);
167
	if (status) {
168
		retkey.dptr = NULL;
169
		retkey.dsize = 0;
170
	} else {
171
		retkey.dptr = nk.data;
172
		retkey.dsize = nk.size;
173
	}
174
	return (retkey);
175
}
176
177
/*
178
 * Returns:
179
 *	DATUM on success
180
 *	NULL on failure
181
 */
182
183
extern datum
184
ypdb_setkey(DBM *db, datum key)
185
{
186
	int status;
187
	DBT nk, nd;
188
189
	nk.data = key.dptr;
190
	nk.size = key.dsize;
191
	status = (db->seq)(db, &nk, &nd, R_CURSOR);
192
	if (status) {
193
		key.dptr = NULL;
194
		key.dsize = 0;
195
	}
196
	return (key);
197
}
198
199
/*
200
 * Returns:
201
 *	 0 on success
202
 *	<0 failure
203
 *	 1 if YPDB_INSERT and entry exists
204
 */
205
int
206
ypdb_store(DBM *db, datum key, datum content, int flags)
207
{
208
	DBT nk, nd;
209
210
	if (key.dsize > YPMAXRECORD || content.dsize > YPMAXRECORD)
211
		return -1;
212
	nk.data = key.dptr;
213
	nk.size = key.dsize;
214
	nd.data = content.dptr;
215
	nd.size = content.dsize;
216
	return ((db->put)(db, &nk, &nd,
217
	    (flags == YPDB_INSERT) ? R_NOOVERWRITE : 0));
218
}