external/bsd/bind/dist/bin/dnssec/dnssec-settime.c

   1 /*      $NetBSD: dnssec-settime.c,v 1.12 2015/07/08 17:28:55 christos Exp $     */
   2
   3 /*
   4  * Copyright (C) 2009-2015  Internet Systems Consortium, Inc. ("ISC")
   5  *
   6  * Permission to use, copy, modify, and/or distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
  11  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  12  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
  13  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  14  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
  15  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  16  * PERFORMANCE OF THIS SOFTWARE.
  17  */
  18
  19 /*! \file */
  20
  21 #include <config.h>
  22
  23 #include <stdlib.h>
  24 #include <unistd.h>
  25 #include <errno.h>
  26 #include <time.h>
  27
  28 #include <isc/buffer.h>
  29 #include <isc/commandline.h>
  30 #include <isc/entropy.h>
  31 #include <isc/file.h>
  32 #include <isc/hash.h>
  33 #include <isc/mem.h>
  34 #include <isc/print.h>
  35 #include <isc/string.h>
  36 #include <isc/util.h>
  37
  38 #include <dns/keyvalues.h>
  39 #include <dns/result.h>
  40 #include <dns/log.h>
  41
  42 #include <dst/dst.h>
  43
  44 #ifdef PKCS11CRYPTO
  45 #include <pk11/result.h>
  46 #endif
  47
  48 #include "dnssectool.h"
  49
  50 const char *program = "dnssec-settime";
  51 int verbose;
  52
  53 static isc_mem_t        *mctx = NULL;
  54
  55 ISC_PLATFORM_NORETURN_PRE static void
  56 usage(void) ISC_PLATFORM_NORETURN_POST;
  57
  58 static void
  59 usage(void) {
  60         fprintf(stderr, "Usage:\n");
  61         fprintf(stderr, "    %s [options] keyfile\n\n", program);
  62         fprintf(stderr, "Version: %s\n", VERSION);
  63         fprintf(stderr, "General options:\n");
  64 #if defined(PKCS11CRYPTO)
  65         fprintf(stderr, "    -E engine:          specify PKCS#11 provider "
  66                                         "(default: %s)\n", PK11_LIB_LOCATION);
  67 #elif defined(USE_PKCS11)
  68         fprintf(stderr, "    -E engine:          specify OpenSSL engine "
  69                                            "(default \"pkcs11\")\n");
  70 #else
  71         fprintf(stderr, "    -E engine:          specify OpenSSL engine\n");
  72 #endif
  73         fprintf(stderr, "    -f:                 force update of old-style "
  74                                                  "keys\n");
  75         fprintf(stderr, "    -K directory:       set key file location\n");
  76         fprintf(stderr, "    -L ttl:             set default key TTL\n");
  77         fprintf(stderr, "    -v level:           set level of verbosity\n");
  78         fprintf(stderr, "    -V:                 print version information\n");
  79         fprintf(stderr, "    -h:                 help\n");
  80         fprintf(stderr, "Timing options:\n");
  81         fprintf(stderr, "    -P date/[+-]offset/none: set/unset key "
  82                                                      "publication date\n");
  83         fprintf(stderr, "    -A date/[+-]offset/none: set/unset key "
  84                                                      "activation date\n");
  85         fprintf(stderr, "    -R date/[+-]offset/none: set/unset key "
  86                                                      "revocation date\n");
  87         fprintf(stderr, "    -I date/[+-]offset/none: set/unset key "
  88                                                      "inactivation date\n");
  89         fprintf(stderr, "    -D date/[+-]offset/none: set/unset key "
  90                                                      "deletion date\n");
  91         fprintf(stderr, "Printing options:\n");
  92         fprintf(stderr, "    -p C/P/A/R/I/D/all: print a particular time "
  93                                                 "value or values\n");
  94         fprintf(stderr, "    -u:                 print times in unix epoch "
  95                                                 "format\n");
  96         fprintf(stderr, "Output:\n");
  97         fprintf(stderr, "     K<name>+<alg>+<new id>.key, "
  98                              "K<name>+<alg>+<new id>.private\n");
  99
 100         exit (-1);
 101 }
 102
 103 static void
 104 printtime(dst_key_t *key, int type, const char *tag, isc_boolean_t epoch,
 105           FILE *stream)
 106 {
 107         isc_result_t result;
 108         const char *output = NULL;
 109         isc_stdtime_t when;
 110
 111         if (tag != NULL)
 112                 fprintf(stream, "%s: ", tag);
 113
 114         result = dst_key_gettime(key, type, &when);
 115         if (result == ISC_R_NOTFOUND) {
 116                 fprintf(stream, "UNSET\n");
 117         } else if (epoch) {
 118                 fprintf(stream, "%d\n", (int) when);
 119         } else {
 120                 time_t time = when;
 121                 output = ctime(&time);
 122                 fprintf(stream, "%s", output);
 123         }
 124 }
 125
 126 int
 127 main(int argc, char **argv) {
 128         isc_result_t    result;
 129 #ifdef USE_PKCS11
 130         const char      *engine = PKCS11_ENGINE;
 131 #else
 132         const char      *engine = NULL;
 133 #endif
 134         char            *filename = NULL, *directory = NULL;
 135         char            newname[1024];
 136         char            keystr[DST_KEY_FORMATSIZE];
 137         char            *endp, *p;
 138         int             ch;
 139         isc_entropy_t   *ectx = NULL;
 140         const char      *predecessor = NULL;
 141         dst_key_t       *prevkey = NULL;
 142         dst_key_t       *key = NULL;
 143         isc_buffer_t    buf;
 144         dns_name_t      *name = NULL;
 145         dns_secalg_t    alg = 0;
 146         unsigned int    size = 0;
 147         isc_uint16_t    flags = 0;
 148         int             prepub = -1;
 149         dns_ttl_t       ttl = 0;
 150         isc_stdtime_t   now;
 151         isc_stdtime_t   pub = 0, act = 0, rev = 0, inact = 0, del = 0;
 152         isc_stdtime_t   prevact = 0, previnact = 0, prevdel = 0;
 153         isc_boolean_t   setpub = ISC_FALSE, setact = ISC_FALSE;
 154         isc_boolean_t   setrev = ISC_FALSE, setinact = ISC_FALSE;
 155         isc_boolean_t   setdel = ISC_FALSE, setttl = ISC_FALSE;
 156         isc_boolean_t   unsetpub = ISC_FALSE, unsetact = ISC_FALSE;
 157         isc_boolean_t   unsetrev = ISC_FALSE, unsetinact = ISC_FALSE;
 158         isc_boolean_t   unsetdel = ISC_FALSE;
 159         isc_boolean_t   printcreate = ISC_FALSE, printpub = ISC_FALSE;
 160         isc_boolean_t   printact = ISC_FALSE,  printrev = ISC_FALSE;
 161         isc_boolean_t   printinact = ISC_FALSE, printdel = ISC_FALSE;
 162         isc_boolean_t   force = ISC_FALSE;
 163         isc_boolean_t   epoch = ISC_FALSE;
 164         isc_boolean_t   changed = ISC_FALSE;
 165         isc_log_t       *log = NULL;
 166
 167         if (argc == 1)
 168                 usage();
 169
 170         result = isc_mem_create(0, 0, &mctx);
 171         if (result != ISC_R_SUCCESS)
 172                 fatal("Out of memory");
 173
 174         setup_logging(mctx, &log);
 175
 176 #ifdef PKCS11CRYPTO
 177         pk11_result_register();
 178 #endif
 179         dns_result_register();
 180
 181         isc_commandline_errprint = ISC_FALSE;
 182
 183         isc_stdtime_get(&now);
 184
 185 #define CMDLINE_FLAGS "A:D:E:fhI:i:K:L:P:p:R:S:uv:V"
 186         while ((ch = isc_commandline_parse(argc, argv, CMDLINE_FLAGS)) != -1) {
 187                 switch (ch) {
 188                 case 'E':
 189                         engine = isc_commandline_argument;
 190                         break;
 191                 case 'f':
 192                         force = ISC_TRUE;
 193                         break;
 194                 case 'p':
 195                         p = isc_commandline_argument;
 196                         if (!strcasecmp(p, "all")) {
 197                                 printcreate = ISC_TRUE;
 198                                 printpub = ISC_TRUE;
 199                                 printact = ISC_TRUE;
 200                                 printrev = ISC_TRUE;
 201                                 printinact = ISC_TRUE;
 202                                 printdel = ISC_TRUE;
 203                                 break;
 204                         }
 205
 206                         do {
 207                                 switch (*p++) {
 208                                 case 'C':
 209                                         printcreate = ISC_TRUE;
 210                                         break;
 211                                 case 'P':
 212                                         printpub = ISC_TRUE;
 213                                         break;
 214                                 case 'A':
 215                                         printact = ISC_TRUE;
 216                                         break;
 217                                 case 'R':
 218                                         printrev = ISC_TRUE;
 219                                         break;
 220                                 case 'I':
 221                                         printinact = ISC_TRUE;
 222                                         break;
 223                                 case 'D':
 224                                         printdel = ISC_TRUE;
 225                                         break;
 226                                 case ' ':
 227                                         break;
 228                                 default:
 229                                         usage();
 230                                         break;
 231                                 }
 232                         } while (*p != '\0');
 233                         break;
 234                 case 'u':
 235                         epoch = ISC_TRUE;
 236                         break;
 237                 case 'K':
 238                         /*
 239                          * We don't have to copy it here, but do it to
 240                          * simplify cleanup later
 241                          */
 242                         directory = isc_mem_strdup(mctx,
 243                                                    isc_commandline_argument);
 244                         if (directory == NULL) {
 245                                 fatal("Failed to allocate memory for "
 246                                       "directory");
 247                         }
 248                         break;
 249                 case 'L':
 250                         ttl = strtottl(isc_commandline_argument);
 251                         setttl = ISC_TRUE;
 252                         break;
 253                 case 'v':
 254                         verbose = strtol(isc_commandline_argument, &endp, 0);
 255                         if (*endp != '\0')
 256                                 fatal("-v must be followed by a number");
 257                         break;
 258                 case 'P':
 259                         if (setpub || unsetpub)
 260                                 fatal("-P specified more than once");
 261
 262                         changed = ISC_TRUE;
 263                         pub = strtotime(isc_commandline_argument,
 264                                         now, now, &setpub);
 265                         unsetpub = !setpub;
 266                         break;
 267                 case 'A':
 268                         if (setact || unsetact)
 269                                 fatal("-A specified more than once");
 270
 271                         changed = ISC_TRUE;
 272                         act = strtotime(isc_commandline_argument,
 273                                         now, now, &setact);
 274                         unsetact = !setact;
 275                         break;
 276                 case 'R':
 277                         if (setrev || unsetrev)
 278                                 fatal("-R specified more than once");
 279
 280                         changed = ISC_TRUE;
 281                         rev = strtotime(isc_commandline_argument,
 282                                         now, now, &setrev);
 283                         unsetrev = !setrev;
 284                         break;
 285                 case 'I':
 286                         if (setinact || unsetinact)
 287                                 fatal("-I specified more than once");
 288
 289                         changed = ISC_TRUE;
 290                         inact = strtotime(isc_commandline_argument,
 291                                         now, now, &setinact);
 292                         unsetinact = !setinact;
 293                         break;
 294                 case 'D':
 295                         if (setdel || unsetdel)
 296                                 fatal("-D specified more than once");
 297
 298                         changed = ISC_TRUE;
 299                         del = strtotime(isc_commandline_argument,
 300                                         now, now, &setdel);
 301                         unsetdel = !setdel;
 302                         break;
 303                 case 'S':
 304                         predecessor = isc_commandline_argument;
 305                         break;
 306                 case 'i':
 307                         prepub = strtottl(isc_commandline_argument);
 308                         break;
 309                 case '?':
 310                         if (isc_commandline_option != '?')
 311                                 fprintf(stderr, "%s: invalid argument -%c\n",
 312                                         program, isc_commandline_option);
 313                         /* Falls into */
 314                 case 'h':
 315                         /* Does not return. */
 316                         usage();
 317
 318                 case 'V':
 319                         /* Does not return. */
 320                         version(program);
 321
 322                 default:
 323                         fprintf(stderr, "%s: unhandled option -%c\n",
 324                                 program, isc_commandline_option);
 325                         exit(1);
 326                 }
 327         }
 328
 329         if (argc < isc_commandline_index + 1 ||
 330             argv[isc_commandline_index] == NULL)
 331                 fatal("The key file name was not specified");
 332         if (argc > isc_commandline_index + 1)
 333                 fatal("Extraneous arguments");
 334
 335         if (ectx == NULL)
 336                 setup_entropy(mctx, NULL, &ectx);
 337         result = isc_hash_create(mctx, ectx, DNS_NAME_MAXWIRE);
 338         if (result != ISC_R_SUCCESS)
 339                 fatal("Could not initialize hash");
 340         result = dst_lib_init2(mctx, ectx, engine,
 341                                ISC_ENTROPY_BLOCKING | ISC_ENTROPY_GOODONLY);
 342         if (result != ISC_R_SUCCESS)
 343                 fatal("Could not initialize dst: %s",
 344                       isc_result_totext(result));
 345         isc_entropy_stopcallbacksources(ectx);
 346
 347         if (predecessor != NULL) {
 348                 int major, minor;
 349
 350                 if (prepub == -1)
 351                         prepub = (30 * 86400);
 352
 353                 if (setpub || unsetpub)
 354                         fatal("-S and -P cannot be used together");
 355                 if (setact || unsetact)
 356                         fatal("-S and -A cannot be used together");
 357
 358                 result = dst_key_fromnamedfile(predecessor, directory,
 359                                                DST_TYPE_PUBLIC |
 360                                                DST_TYPE_PRIVATE,
 361                                                mctx, &prevkey);
 362                 if (result != ISC_R_SUCCESS)
 363                         fatal("Invalid keyfile %s: %s",
 364                               filename, isc_result_totext(result));
 365                 if (!dst_key_isprivate(prevkey) && !dst_key_isexternal(prevkey))
 366                         fatal("%s is not a private key", filename);
 367
 368                 name = dst_key_name(prevkey);
 369                 alg = dst_key_alg(prevkey);
 370                 size = dst_key_size(prevkey);
 371                 flags = dst_key_flags(prevkey);
 372
 373                 dst_key_format(prevkey, keystr, sizeof(keystr));
 374                 dst_key_getprivateformat(prevkey, &major, &minor);
 375                 if (major != DST_MAJOR_VERSION || minor < DST_MINOR_VERSION)
 376                         fatal("Predecessor has incompatible format "
 377                               "version %d.%d\n\t", major, minor);
 378
 379                 result = dst_key_gettime(prevkey, DST_TIME_ACTIVATE, &prevact);
 380                 if (result != ISC_R_SUCCESS)
 381                         fatal("Predecessor has no activation date. "
 382                               "You must set one before\n\t"
 383                               "generating a successor.");
 384
 385                 result = dst_key_gettime(prevkey, DST_TIME_INACTIVE,
 386                                          &previnact);
 387                 if (result != ISC_R_SUCCESS)
 388                         fatal("Predecessor has no inactivation date. "
 389                               "You must set one before\n\t"
 390                               "generating a successor.");
 391
 392                 pub = prevact - prepub;
 393                 if (pub < now && prepub != 0)
 394                         fatal("Predecessor will become inactive before the\n\t"
 395                               "prepublication period ends.  Either change "
 396                               "its inactivation date,\n\t"
 397                               "or use the -i option to set a shorter "
 398                               "prepublication interval.");
 399
 400                 result = dst_key_gettime(prevkey, DST_TIME_DELETE, &prevdel);
 401                 if (result != ISC_R_SUCCESS)
 402                         fprintf(stderr, "%s: warning: Predecessor has no "
 403                                         "removal date;\n\t"
 404                                         "it will remain in the zone "
 405                                         "indefinitely after rollover.\n",
 406                                         program);
 407                 else if (prevdel < previnact)
 408                         fprintf(stderr, "%s: warning: Predecessor is "
 409                                         "scheduled to be deleted\n\t"
 410                                         "before it is scheduled to be "
 411                                         "inactive.\n", program);
 412
 413                 changed = setpub = setact = ISC_TRUE;
 414                 dst_key_free(&prevkey);
 415         } else {
 416                 if (prepub < 0)
 417                         prepub = 0;
 418
 419                 if (prepub > 0) {
 420                         if (setpub && setact && (act - prepub) < pub)
 421                                 fatal("Activation and publication dates "
 422                                       "are closer together than the\n\t"
 423                                       "prepublication interval.");
 424
 425                         if (setpub && !setact) {
 426                                 setact = ISC_TRUE;
 427                                 act = pub + prepub;
 428                         } else if (setact && !setpub) {
 429                                 setpub = ISC_TRUE;
 430                                 pub = act - prepub;
 431                         }
 432
 433                         if ((act - prepub) < now)
 434                                 fatal("Time until activation is shorter "
 435                                       "than the\n\tprepublication interval.");
 436                 }
 437         }
 438
 439         if (directory != NULL) {
 440                 filename = argv[isc_commandline_index];
 441         } else {
 442                 result = isc_file_splitpath(mctx, argv[isc_commandline_index],
 443                                             &directory, &filename);
 444                 if (result != ISC_R_SUCCESS)
 445                         fatal("cannot process filename %s: %s",
 446                               argv[isc_commandline_index],
 447                               isc_result_totext(result));
 448         }
 449
 450         result = dst_key_fromnamedfile(filename, directory,
 451                                        DST_TYPE_PUBLIC | DST_TYPE_PRIVATE,
 452                                        mctx, &key);
 453         if (result != ISC_R_SUCCESS)
 454                 fatal("Invalid keyfile %s: %s",
 455                       filename, isc_result_totext(result));
 456
 457         if (!dst_key_isprivate(key) && !dst_key_isexternal(key))
 458                 fatal("%s is not a private key", filename);
 459
 460         dst_key_format(key, keystr, sizeof(keystr));
 461
 462         if (predecessor != NULL) {
 463                 if (!dns_name_equal(name, dst_key_name(key)))
 464                         fatal("Key name mismatch");
 465                 if (alg != dst_key_alg(key))
 466                         fatal("Key algorithm mismatch");
 467                 if (size != dst_key_size(key))
 468                         fatal("Key size mismatch");
 469                 if (flags != dst_key_flags(key))
 470                         fatal("Key flags mismatch");
 471         }
 472
 473         prevdel = previnact = 0;
 474         if ((setdel && setinact && del < inact) ||
 475             (dst_key_gettime(key, DST_TIME_INACTIVE,
 476                              &previnact) == ISC_R_SUCCESS &&
 477              setdel && !setinact && del < previnact) ||
 478             (dst_key_gettime(key, DST_TIME_DELETE,
 479                              &prevdel) == ISC_R_SUCCESS &&
 480              setinact && !setdel && prevdel < inact) ||
 481             (!setdel && !setinact && prevdel < previnact))
 482                 fprintf(stderr, "%s: warning: Key is scheduled to "
 483                                 "be deleted before it is\n\t"
 484                                 "scheduled to be inactive.\n",
 485                         program);
 486
 487         if (force)
 488                 set_keyversion(key);
 489         else
 490                 check_keyversion(key, keystr);
 491
 492         if (verbose > 2)
 493                 fprintf(stderr, "%s: %s\n", program, keystr);
 494
 495         /*
 496          * Set time values.
 497          */
 498         if (setpub)
 499                 dst_key_settime(key, DST_TIME_PUBLISH, pub);
 500         else if (unsetpub)
 501                 dst_key_unsettime(key, DST_TIME_PUBLISH);
 502
 503         if (setact)
 504                 dst_key_settime(key, DST_TIME_ACTIVATE, act);
 505         else if (unsetact)
 506                 dst_key_unsettime(key, DST_TIME_ACTIVATE);
 507
 508         if (setrev) {
 509                 if ((dst_key_flags(key) & DNS_KEYFLAG_REVOKE) != 0)
 510                         fprintf(stderr, "%s: warning: Key %s is already "
 511                                         "revoked; changing the revocation date "
 512                                         "will not affect this.\n",
 513                                         program, keystr);
 514                 if ((dst_key_flags(key) & DNS_KEYFLAG_KSK) == 0)
 515                         fprintf(stderr, "%s: warning: Key %s is not flagged as "
 516                                         "a KSK, but -R was used.  Revoking a "
 517                                         "ZSK is legal, but undefined.\n",
 518                                         program, keystr);
 519                 dst_key_settime(key, DST_TIME_REVOKE, rev);
 520         } else if (unsetrev) {
 521                 if ((dst_key_flags(key) & DNS_KEYFLAG_REVOKE) != 0)
 522                         fprintf(stderr, "%s: warning: Key %s is already "
 523                                         "revoked; removing the revocation date "
 524                                         "will not affect this.\n",
 525                                         program, keystr);
 526                 dst_key_unsettime(key, DST_TIME_REVOKE);
 527         }
 528
 529         if (setinact)
 530                 dst_key_settime(key, DST_TIME_INACTIVE, inact);
 531         else if (unsetinact)
 532                 dst_key_unsettime(key, DST_TIME_INACTIVE);
 533
 534         if (setdel)
 535                 dst_key_settime(key, DST_TIME_DELETE, del);
 536         else if (unsetdel)
 537                 dst_key_unsettime(key, DST_TIME_DELETE);
 538
 539         if (setttl)
 540                 dst_key_setttl(key, ttl);
 541
 542         /*
 543          * No metadata changes were made but we're forcing an upgrade
 544          * to the new format anyway: use "-P now -A now" as the default
 545          */
 546         if (force && !changed) {
 547                 dst_key_settime(key, DST_TIME_PUBLISH, now);
 548                 dst_key_settime(key, DST_TIME_ACTIVATE, now);
 549                 changed = ISC_TRUE;
 550         }
 551
 552         if (!changed && setttl)
 553                 changed = ISC_TRUE;
 554
 555         /*
 556          * Print out time values, if -p was used.
 557          */
 558         if (printcreate)
 559                 printtime(key, DST_TIME_CREATED, "Created", epoch, stdout);
 560
 561         if (printpub)
 562                 printtime(key, DST_TIME_PUBLISH, "Publish", epoch, stdout);
 563
 564         if (printact)
 565                 printtime(key, DST_TIME_ACTIVATE, "Activate", epoch, stdout);
 566
 567         if (printrev)
 568                 printtime(key, DST_TIME_REVOKE, "Revoke", epoch, stdout);
 569
 570         if (printinact)
 571                 printtime(key, DST_TIME_INACTIVE, "Inactive", epoch, stdout);
 572
 573         if (printdel)
 574                 printtime(key, DST_TIME_DELETE, "Delete", epoch, stdout);
 575
 576         if (changed) {
 577                 isc_buffer_init(&buf, newname, sizeof(newname));
 578                 result = dst_key_buildfilename(key, DST_TYPE_PUBLIC, directory,
 579                                                &buf);
 580                 if (result != ISC_R_SUCCESS) {
 581                         fatal("Failed to build public key filename: %s",
 582                               isc_result_totext(result));
 583                 }
 584
 585                 result = dst_key_tofile(key, DST_TYPE_PUBLIC|DST_TYPE_PRIVATE,
 586                                         directory);
 587                 if (result != ISC_R_SUCCESS) {
 588                         dst_key_format(key, keystr, sizeof(keystr));
 589                         fatal("Failed to write key %s: %s", keystr,
 590                               isc_result_totext(result));
 591                 }
 592
 593                 printf("%s\n", newname);
 594
 595                 isc_buffer_clear(&buf);
 596                 result = dst_key_buildfilename(key, DST_TYPE_PRIVATE, directory,
 597                                                &buf);
 598                 if (result != ISC_R_SUCCESS) {
 599                         fatal("Failed to build private key filename: %s",
 600                               isc_result_totext(result));
 601                 }
 602                 printf("%s\n", newname);
 603         }
 604
 605         dst_key_free(&key);
 606         dst_lib_destroy();
 607         isc_hash_destroy();
 608         cleanup_entropy(&ectx);
 609         if (verbose > 10)
 610                 isc_mem_stats(mctx, stdout);
 611         cleanup_logging(&log);
 612         isc_mem_free(mctx, directory);
 613         isc_mem_destroy(&mctx);
 614
 615         return (0);
 616 }