1 /* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2 /* lib/kdb/t_ulog.c - Unit tests for KDB update log */
3 /*
4 * Copyright (C) 2014 by the Massachusetts Institute of Technology.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * * Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
17 * distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
22 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
23 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
24 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
25 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
26 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
28 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
30 * OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 /*
34 * This program performs unit tests for the update log functions in kdb_log.c.
35 * Right now it contains only a test for issue #7839, checking that
36 * ulog_add_update behaves appropriately when the last serial number is
37 * reached.
38 *
39 * The test program accepts one argument, which it unlinks and then maps with
40 * ulog_map(). This lets us test all of the update log functions except for
41 * ulog_replay(), which needs to open and modify a Kerberos database.
42 * ulog_replay is adequately exercised by the functional tests in t_iprop.py.
43 */
44
45 #include "k5-int.h"
46 #include "kdb_log.h"
47
48 /* Use a zeroed context structure to avoid reading the profile. This works
49 * fine for the ulog functions. */
50 static struct _krb5_context context_st;
51 static krb5_context context = &context_st;
52
53 int
main(int argc,char ** argv)54 main(int argc, char **argv)
55 {
56 kdb_log_context *lctx;
57 kdb_hlog_t *ulog;
58 kdb_incr_update_t upd;
59 const char *filename;
60
61 if (argc != 2) {
62 fprintf(stderr, "Usage: %s filename\n", argv[0]);
63 exit(1);
64 }
65 filename = argv[1];
66 unlink(filename);
67
68 if (ulog_map(context, filename, 10) != 0)
69 abort();
70 lctx = context->kdblog_context;
71 ulog = lctx->ulog;
72
73 /* Modify the ulog to look like it has reached the last serial number.
74 * Leave the timestamps at 0 and don't bother setting up the entries. */
75 ulog->kdb_num = lctx->ulogentries;
76 ulog->kdb_last_sno = (kdb_sno_t)-1;
77 ulog->kdb_first_sno = ulog->kdb_last_sno - ulog->kdb_num + 1;
78
79 /* Add an empty update. This should reinitialize the ulog, then add the
80 * update with serial number 2. */
81 memset(&upd, 0, sizeof(kdb_incr_update_t));
82 if (ulog_add_update(context, &upd) != 0)
83 abort();
84 assert(ulog->kdb_num == 2);
85 assert(ulog->kdb_first_sno == 1);
86 assert(ulog->kdb_last_sno == 2);
87 return 0;
88 }
89