tests/lib/libc/t_cdb.c

   1 /*      $NetBSD: t_cdb.c,v 1.1 2012/09/27 00:38:57 joerg 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 1.1 2012/09/27 00:38:57 joerg Exp $");
  36
  37 #include <atf-c.h>
  38 #include <assert.h>
  39 #include <cdbr.h>
  40 #include <cdbw.h>
  41 #include <fcntl.h>
  42 #include <stdlib.h>
  43 #include <string.h>
  44 #include <unistd.h>
  45
  46 #define MAXKEYS 16384
  47
  48 static const char database_name[] = "test.cdb";
  49
  50 uint32_t keys[MAXKEYS];
  51
  52 static int
  53 cmp_keys(const void *a_, const void *b_)
  54 {
  55         uint32_t a = *(const uint32_t *)a_;
  56         uint32_t b = *(const uint32_t *)b_;
  57
  58         return a > b ? 1 : (a < b ? 1 : 0);
  59 }
  60
  61 static void
  62 init_keys(size_t len)
  63 {
  64         uint32_t sorted_keys[MAXKEYS];
  65         size_t i;
  66
  67         assert(len <= MAXKEYS);
  68
  69         if (len == 0)
  70                 return;
  71
  72         do {
  73                 for (i = 0; i < len; ++i)
  74                         sorted_keys[i] = keys[i] = arc4random();
  75
  76                 qsort(sorted_keys, len, sizeof(*sorted_keys), cmp_keys);
  77                 for (i = 1; i < len; ++i) {
  78                         if (sorted_keys[i - 1] == sorted_keys[i])
  79                                 break;
  80                 }
  81         } while (i != len);
  82 }
  83
  84 static void
  85 write_database(size_t len)
  86 {
  87         struct cdbw *db;
  88         int fd;
  89         size_t i;
  90         uint32_t buf[2];
  91
  92         ATF_REQUIRE((db = cdbw_open()) != NULL);
  93         ATF_REQUIRE((fd = creat(database_name, S_IRUSR|S_IWUSR)) != -1);
  94         for (i = 0; i < len; ++i) {
  95                 buf[0] = i;
  96                 buf[1] = keys[i];
  97                 ATF_REQUIRE(cdbw_put(db, &keys[i], sizeof(keys[i]),
  98                     buf, sizeof(buf)) == 0);
  99         }
 100         ATF_REQUIRE(cdbw_output(db, fd, "test database", arc4random) == 0);
 101         cdbw_close(db);
 102         ATF_REQUIRE(close(fd) == 0);
 103 }
 104
 105 static void
 106 check_database(size_t len)
 107 {
 108         struct cdbr *db;
 109         size_t i, data_len;
 110         const void *data;
 111         uint32_t buf[2];
 112
 113         ATF_REQUIRE((db = cdbr_open(database_name, CDBR_DEFAULT)) != NULL);
 114         ATF_REQUIRE_EQ(cdbr_entries(db), len);
 115         for (i = 0; i < len; ++i) {
 116                 ATF_REQUIRE(cdbr_find(db, &keys[i], sizeof(keys[i]),
 117                     &data, &data_len) != -1);
 118                 ATF_REQUIRE_EQ(data_len, sizeof(buf));
 119                 memcpy(buf, data, sizeof(buf));
 120                 ATF_REQUIRE_EQ(buf[0], i);
 121                 ATF_REQUIRE_EQ(buf[1], keys[i]);
 122         }
 123         cdbr_close(db);
 124 }
 125
 126 ATF_TC_WITH_CLEANUP(cdb);
 127
 128 ATF_TC_HEAD(cdb, tc)
 129 {
 130
 131         atf_tc_set_md_var(tc, "descr", "Test cdb(5) reading and writing");
 132 }
 133
 134 ATF_TC_BODY(cdb, tc)
 135 {
 136         size_t i, sizes[] = { 0, 16, 64, 1024, 2048 };
 137         for (i = 0; i < __arraycount(sizes); ++i) {
 138                 init_keys(sizes[i]);
 139                 write_database(sizes[i]);
 140                 check_database(sizes[i]);
 141                 unlink(database_name);
 142         }
 143 }
 144
 145 ATF_TC_CLEANUP(cdb, tc)
 146 {
 147
 148         unlink(database_name);
 149 }
 150
 151 ATF_TP_ADD_TCS(tp)
 152 {
 153
 154         ATF_TP_ADD_TC(tp, cdb);
 155
 156         return atf_no_error();
 157 }
 158