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 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