t_cdb.c revision 313535 
1/*	$NetBSD: t_cdb.c,v 1.2 2017/01/10 22:24:29 christos Exp $	*/
2/*-
3 * Copyright (c) 2012 The NetBSD Foundation, Inc.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to The NetBSD Foundation
7 * by Joerg Sonnenberger.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in
17 *    the documentation and/or other materials provided with the
18 *    distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
30 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include <sys/cdefs.h>
35__RCSID("$NetBSD: t_cdb.c,v 1.2 2017/01/10 22:24:29 christos Exp $");
36
37#include <atf-c.h>
38
39#include <sys/stat.h>
40
41#include <assert.h>
42#include <cdbr.h>
43#include <cdbw.h>
44#include <fcntl.h>
45#include <stdlib.h>
46#include <string.h>
47#include <unistd.h>
48
49#define	MAXKEYS	16384
50
51static const char database_name[] = "test.cdb";
52
53uint32_t keys[MAXKEYS];
54
55static int
56cmp_keys(const void *a_, const void *b_)
57{
58	uint32_t a = *(const uint32_t *)a_;
59	uint32_t b = *(const uint32_t *)b_;
60
61	return a > b ? 1 : (a < b ? 1 : 0);
62}
63
64static void
65init_keys(size_t len)
66{
67	uint32_t sorted_keys[MAXKEYS];
68	size_t i;
69
70	assert(len <= MAXKEYS);
71
72	if (len == 0)
73		return;
74
75	do {
76		for (i = 0; i < len; ++i)
77			sorted_keys[i] = keys[i] = arc4random();
78
79		qsort(sorted_keys, len, sizeof(*sorted_keys), cmp_keys);
80		for (i = 1; i < len; ++i) {
81			if (sorted_keys[i - 1] == sorted_keys[i])
82				break;
83		}
84	} while (i != len);
85}
86
87static void
88write_database(size_t len)
89{
90	struct cdbw *db;
91	int fd;
92	size_t i;
93	uint32_t buf[2];
94
95	ATF_REQUIRE((db = cdbw_open()) != NULL);
96	ATF_REQUIRE((fd = creat(database_name, S_IRUSR|S_IWUSR)) != -1);
97	for (i = 0; i < len; ++i) {
98		buf[0] = i;
99		buf[1] = keys[i];
100		ATF_REQUIRE(cdbw_put(db, &keys[i], sizeof(keys[i]),
101		    buf, sizeof(buf)) == 0);
102	}
103	ATF_REQUIRE(cdbw_output(db, fd, "test database", arc4random) == 0);
104	cdbw_close(db);
105	ATF_REQUIRE(close(fd) == 0);
106}
107
108static void
109check_database(size_t len)
110{
111	struct cdbr *db;
112	size_t i, data_len;
113	const void *data;
114	uint32_t buf[2];
115
116	ATF_REQUIRE((db = cdbr_open(database_name, CDBR_DEFAULT)) != NULL);
117	ATF_REQUIRE_EQ(cdbr_entries(db), len);
118	for (i = 0; i < len; ++i) {
119		ATF_REQUIRE(cdbr_find(db, &keys[i], sizeof(keys[i]),
120		    &data, &data_len) != -1);
121		ATF_REQUIRE_EQ(data_len, sizeof(buf));
122		memcpy(buf, data, sizeof(buf));
123		ATF_REQUIRE_EQ(buf[0], i);
124		ATF_REQUIRE_EQ(buf[1], keys[i]);
125	}
126	cdbr_close(db);
127}
128
129ATF_TC_WITH_CLEANUP(cdb);
130
131ATF_TC_HEAD(cdb, tc)
132{
133
134	atf_tc_set_md_var(tc, "descr", "Test cdb(5) reading and writing");
135}
136
137ATF_TC_BODY(cdb, tc)
138{
139	size_t i, sizes[] = { 0, 16, 64, 1024, 2048 };
140	for (i = 0; i < __arraycount(sizes); ++i) {
141		init_keys(sizes[i]);
142		write_database(sizes[i]);
143		check_database(sizes[i]);
144		unlink(database_name);
145	}
146}
147
148ATF_TC_CLEANUP(cdb, tc)
149{
150
151	unlink(database_name);
152}
153
154ATF_TP_ADD_TCS(tp)
155{
156
157	ATF_TP_ADD_TC(tp, cdb);
158
159	return atf_no_error();
160}
161
162