crypto/external/bsd/heimdal/dist/lib/krb5/verify_krb5_conf.c

   1 /*      $NetBSD: verify_krb5_conf.c,v 1.1.1.2 2014/04/24 12:45:51 pettai Exp $  */
   2
   3 /*
   4  * Copyright (c) 1999 - 2005 Kungliga Tekniska Högskolan
   5  * (Royal Institute of Technology, Stockholm, Sweden).
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * 3. Neither the name of the Institute nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include "krb5_locl.h"
  37 #include <krb5/getarg.h>
  38 #include <krb5/parse_bytes.h>
  39 #include <err.h>
  40
  41 /* verify krb5.conf */
  42
  43 static int dumpconfig_flag = 0;
  44 static int version_flag = 0;
  45 static int help_flag    = 0;
  46 static int warn_mit_syntax_flag = 0;
  47
  48 static struct getargs args[] = {
  49     {"dumpconfig", 0,      arg_flag,       &dumpconfig_flag,
  50      "show the parsed config files", NULL },
  51     {"warn-mit-syntax", 0, arg_flag,       &warn_mit_syntax_flag,
  52      "show the parsed config files", NULL },
  53     {"version", 0,      arg_flag,       &version_flag,
  54      "print version", NULL },
  55     {"help",    0,      arg_flag,       &help_flag,
  56      NULL, NULL }
  57 };
  58
  59 static void
  60 usage (int ret)
  61 {
  62     arg_printusage (args,
  63                     sizeof(args)/sizeof(*args),
  64                     NULL,
  65                     "[config-file]");
  66     exit (ret);
  67 }
  68
  69 static int
  70 check_bytes(krb5_context context, const char *path, char *data)
  71 {
  72     if(parse_bytes(data, NULL) == -1) {
  73         krb5_warnx(context, "%s: failed to parse \"%s\" as size", path, data);
  74         return 1;
  75     }
  76     return 0;
  77 }
  78
  79 static int
  80 check_time(krb5_context context, const char *path, char *data)
  81 {
  82     if(parse_time(data, NULL) == -1) {
  83         krb5_warnx(context, "%s: failed to parse \"%s\" as time", path, data);
  84         return 1;
  85     }
  86     return 0;
  87 }
  88
  89 static int
  90 check_numeric(krb5_context context, const char *path, char *data)
  91 {
  92     long v;
  93     char *end;
  94     v = strtol(data, &end, 0);
  95
  96     if ((v == LONG_MIN || v == LONG_MAX) && errno != 0) {
  97         krb5_warnx(context, "%s: over/under flow for \"%s\"",
  98                    path, data);
  99         return 1;
 100     }
 101     if(*end != '\0') {
 102         krb5_warnx(context, "%s: failed to parse \"%s\" as a number",
 103                    path, data);
 104         return 1;
 105     }
 106     return 0;
 107 }
 108
 109 static int
 110 check_boolean(krb5_context context, const char *path, char *data)
 111 {
 112     long int v;
 113     char *end;
 114     if(strcasecmp(data, "yes") == 0 ||
 115        strcasecmp(data, "true") == 0 ||
 116        strcasecmp(data, "no") == 0 ||
 117        strcasecmp(data, "false") == 0)
 118         return 0;
 119     v = strtol(data, &end, 0);
 120     if(*end != '\0') {
 121         krb5_warnx(context, "%s: failed to parse \"%s\" as a boolean",
 122                    path, data);
 123         return 1;
 124     }
 125     if(v != 0 && v != 1)
 126         krb5_warnx(context, "%s: numeric value \"%s\" is treated as \"true\"",
 127                    path, data);
 128     return 0;
 129 }
 130
 131 static int
 132 check_524(krb5_context context, const char *path, char *data)
 133 {
 134     if(strcasecmp(data, "yes") == 0 ||
 135        strcasecmp(data, "no") == 0 ||
 136        strcasecmp(data, "2b") == 0 ||
 137        strcasecmp(data, "local") == 0)
 138         return 0;
 139
 140     krb5_warnx(context, "%s: didn't contain a valid option `%s'",
 141                path, data);
 142     return 1;
 143 }
 144
 145 static int
 146 check_host(krb5_context context, const char *path, char *data)
 147 {
 148     int ret;
 149     char hostname[128];
 150     const char *p = data;
 151     struct addrinfo hints;
 152     char service[32];
 153     int defport;
 154     struct addrinfo *ai;
 155
 156     hints.ai_flags = 0;
 157     hints.ai_family = PF_UNSPEC;
 158     hints.ai_socktype = 0;
 159     hints.ai_protocol = 0;
 160
 161     hints.ai_addrlen = 0;
 162     hints.ai_canonname = NULL;
 163     hints.ai_addr = NULL;
 164     hints.ai_next = NULL;
 165
 166     /* XXX data could be a list of hosts that this code can't handle */
 167     /* XXX copied from krbhst.c */
 168     if(strncmp(p, "http://", 7) == 0){
 169         p += 7;
 170         hints.ai_socktype = SOCK_STREAM;
 171         strlcpy(service, "http", sizeof(service));
 172         defport = 80;
 173     } else if(strncmp(p, "http/", 5) == 0) {
 174         p += 5;
 175         hints.ai_socktype = SOCK_STREAM;
 176         strlcpy(service, "http", sizeof(service));
 177         defport = 80;
 178     }else if(strncmp(p, "tcp/", 4) == 0){
 179         p += 4;
 180         hints.ai_socktype = SOCK_STREAM;
 181         strlcpy(service, "kerberos", sizeof(service));
 182         defport = 88;
 183     } else if(strncmp(p, "udp/", 4) == 0) {
 184         p += 4;
 185         hints.ai_socktype = SOCK_DGRAM;
 186         strlcpy(service, "kerberos", sizeof(service));
 187         defport = 88;
 188     } else {
 189         hints.ai_socktype = SOCK_DGRAM;
 190         strlcpy(service, "kerberos", sizeof(service));
 191         defport = 88;
 192     }
 193     if(strsep_copy(&p, ":", hostname, sizeof(hostname)) < 0) {
 194         return 1;
 195     }
 196     hostname[strcspn(hostname, "/")] = '\0';
 197     if(p != NULL) {
 198         char *end;
 199         int tmp = strtol(p, &end, 0);
 200         if(end == p) {
 201             krb5_warnx(context, "%s: failed to parse port number in %s",
 202                        path, data);
 203             return 1;
 204         }
 205         defport = tmp;
 206         snprintf(service, sizeof(service), "%u", defport);
 207     }
 208     ret = getaddrinfo(hostname, service, &hints, &ai);
 209     if(ret == EAI_SERVICE && !isdigit((unsigned char)service[0])) {
 210         snprintf(service, sizeof(service), "%u", defport);
 211         ret = getaddrinfo(hostname, service, &hints, &ai);
 212     }
 213     if(ret != 0) {
 214         krb5_warnx(context, "%s: %s (%s)", path, gai_strerror(ret), hostname);
 215         return 1;
 216     }
 217     return 0;
 218 }
 219
 220 static int
 221 mit_entry(krb5_context context, const char *path, char *data)
 222 {
 223     if (warn_mit_syntax_flag)
 224         krb5_warnx(context, "%s is only used by MIT Kerberos", path);
 225     return 0;
 226 }
 227
 228 struct s2i {
 229     const char *s;
 230     int val;
 231 };
 232
 233 #define L(X) { #X, LOG_ ## X }
 234
 235 static struct s2i syslogvals[] = {
 236     /* severity */
 237     L(EMERG),
 238     L(ALERT),
 239     L(CRIT),
 240     L(ERR),
 241     L(WARNING),
 242     L(NOTICE),
 243     L(INFO),
 244     L(DEBUG),
 245     /* facility */
 246     L(AUTH),
 247 #ifdef LOG_AUTHPRIV
 248     L(AUTHPRIV),
 249 #endif
 250 #ifdef LOG_CRON
 251     L(CRON),
 252 #endif
 253     L(DAEMON),
 254 #ifdef LOG_FTP
 255     L(FTP),
 256 #endif
 257     L(KERN),
 258     L(LPR),
 259     L(MAIL),
 260 #ifdef LOG_NEWS
 261     L(NEWS),
 262 #endif
 263     L(SYSLOG),
 264     L(USER),
 265 #ifdef LOG_UUCP
 266     L(UUCP),
 267 #endif
 268     L(LOCAL0),
 269     L(LOCAL1),
 270     L(LOCAL2),
 271     L(LOCAL3),
 272     L(LOCAL4),
 273     L(LOCAL5),
 274     L(LOCAL6),
 275     L(LOCAL7),
 276     { NULL, -1 }
 277 };
 278
 279 static int
 280 find_value(const char *s, struct s2i *table)
 281 {
 282     while(table->s && strcasecmp(table->s, s))
 283         table++;
 284     return table->val;
 285 }
 286
 287 static int
 288 check_log(krb5_context context, const char *path, char *data)
 289 {
 290     /* XXX sync with log.c */
 291     int min = 0, max = -1, n;
 292     char c;
 293     const char *p = data;
 294
 295     n = sscanf(p, "%d%c%d/", &min, &c, &max);
 296     if(n == 2){
 297         if(c == '/') {
 298             if(min < 0){
 299                 max = -min;
 300                 min = 0;
 301             }else{
 302                 max = min;
 303             }
 304         }
 305     }
 306     if(n){
 307         p = strchr(p, '/');
 308         if(p == NULL) {
 309             krb5_warnx(context, "%s: failed to parse \"%s\"", path, data);
 310             return 1;
 311         }
 312         p++;
 313     }
 314     if(strcmp(p, "STDERR") == 0 ||
 315        strcmp(p, "CONSOLE") == 0 ||
 316        (strncmp(p, "FILE", 4) == 0 && (p[4] == ':' || p[4] == '=')) ||
 317        (strncmp(p, "DEVICE", 6) == 0 && p[6] == '='))
 318         return 0;
 319     if(strncmp(p, "SYSLOG", 6) == 0){
 320         int ret = 0;
 321         char severity[128] = "";
 322         char facility[128] = "";
 323         p += 6;
 324         if(*p != '\0')
 325             p++;
 326         if(strsep_copy(&p, ":", severity, sizeof(severity)) != -1)
 327             strsep_copy(&p, ":", facility, sizeof(facility));
 328         if(*severity == '\0')
 329             strlcpy(severity, "ERR", sizeof(severity));
 330         if(*facility == '\0')
 331             strlcpy(facility, "AUTH", sizeof(facility));
 332         if(find_value(severity, syslogvals) == -1) {
 333             krb5_warnx(context, "%s: unknown syslog facility \"%s\"",
 334                        path, facility);
 335             ret++;
 336         }
 337         if(find_value(severity, syslogvals) == -1) {
 338             krb5_warnx(context, "%s: unknown syslog severity \"%s\"",
 339                        path, severity);
 340             ret++;
 341         }
 342         return ret;
 343     }else{
 344         krb5_warnx(context, "%s: unknown log type: \"%s\"", path, data);
 345         return 1;
 346     }
 347 }
 348
 349 typedef int (*check_func_t)(krb5_context, const char*, char*);
 350 struct entry {
 351     const char *name;
 352     int type;
 353     void *check_data;
 354     int deprecated;
 355 };
 356
 357 struct entry all_strings[] = {
 358     { "", krb5_config_string, NULL },
 359     { NULL }
 360 };
 361
 362 struct entry all_boolean[] = {
 363     { "", krb5_config_string, check_boolean },
 364     { NULL }
 365 };
 366
 367
 368 struct entry v4_name_convert_entries[] = {
 369     { "host", krb5_config_list, all_strings },
 370     { "plain", krb5_config_list, all_strings },
 371     { NULL }
 372 };
 373
 374 struct entry libdefaults_entries[] = {
 375     { "accept_null_addresses", krb5_config_string, check_boolean },
 376     { "allow_weak_crypto", krb5_config_string, check_boolean },
 377     { "capath", krb5_config_list, all_strings, 1 },
 378     { "check_pac", krb5_config_string, check_boolean },
 379     { "clockskew", krb5_config_string, check_time },
 380     { "date_format", krb5_config_string, NULL },
 381     { "default_cc_name", krb5_config_string, NULL },
 382     { "default_etypes", krb5_config_string, NULL },
 383     { "default_etypes_des", krb5_config_string, NULL },
 384     { "default_keytab_modify_name", krb5_config_string, NULL },
 385     { "default_keytab_name", krb5_config_string, NULL },
 386     { "default_realm", krb5_config_string, NULL },
 387     { "dns_canonize_hostname", krb5_config_string, check_boolean },
 388     { "dns_proxy", krb5_config_string, NULL },
 389     { "dns_lookup_kdc", krb5_config_string, check_boolean },
 390     { "dns_lookup_realm", krb5_config_string, check_boolean },
 391     { "dns_lookup_realm_labels", krb5_config_string, NULL },
 392     { "egd_socket", krb5_config_string, NULL },
 393     { "encrypt", krb5_config_string, check_boolean },
 394     { "extra_addresses", krb5_config_string, NULL },
 395     { "fcache_version", krb5_config_string, check_numeric },
 396     { "fcc-mit-ticketflags", krb5_config_string, check_boolean },
 397     { "forward", krb5_config_string, check_boolean },
 398     { "forwardable", krb5_config_string, check_boolean },
 399     { "http_proxy", krb5_config_string, check_host /* XXX */ },
 400     { "ignore_addresses", krb5_config_string, NULL },
 401     { "kdc_timeout", krb5_config_string, check_time },
 402     { "kdc_timesync", krb5_config_string, check_boolean },
 403     { "log_utc", krb5_config_string, check_boolean },
 404     { "maxretries", krb5_config_string, check_numeric },
 405     { "scan_interfaces", krb5_config_string, check_boolean },
 406     { "srv_lookup", krb5_config_string, check_boolean },
 407     { "srv_try_txt", krb5_config_string, check_boolean },
 408     { "ticket_lifetime", krb5_config_string, check_time },
 409     { "time_format", krb5_config_string, NULL },
 410     { "transited_realms_reject", krb5_config_string, NULL },
 411     { "no-addresses", krb5_config_string, check_boolean },
 412     { "v4_instance_resolve", krb5_config_string, check_boolean },
 413     { "v4_name_convert", krb5_config_list, v4_name_convert_entries },
 414     { "verify_ap_req_nofail", krb5_config_string, check_boolean },
 415     { "max_retries", krb5_config_string, check_time },
 416     { "renew_lifetime", krb5_config_string, check_time },
 417     { "proxiable", krb5_config_string, check_boolean },
 418     { "warn_pwexpire", krb5_config_string, check_time },
 419     /* MIT stuff */
 420     { "permitted_enctypes", krb5_config_string, mit_entry },
 421     { "default_tgs_enctypes", krb5_config_string, mit_entry },
 422     { "default_tkt_enctypes", krb5_config_string, mit_entry },
 423     { NULL }
 424 };
 425
 426 struct entry appdefaults_entries[] = {
 427     { "afslog", krb5_config_string, check_boolean },
 428     { "afs-use-524", krb5_config_string, check_524 },
 429     { "encrypt", krb5_config_string, check_boolean },
 430     { "forward", krb5_config_string, check_boolean },
 431     { "forwardable", krb5_config_string, check_boolean },
 432     { "proxiable", krb5_config_string, check_boolean },
 433     { "ticket_lifetime", krb5_config_string, check_time },
 434     { "renew_lifetime", krb5_config_string, check_time },
 435     { "no-addresses", krb5_config_string, check_boolean },
 436     { "krb4_get_tickets", krb5_config_string, check_boolean },
 437     { "pkinit_anchors", krb5_config_string, NULL },
 438     { "pkinit_win2k", krb5_config_string, NULL },
 439     { "pkinit_win2k_require_binding", krb5_config_string, NULL },
 440     { "pkinit_require_eku", krb5_config_string, NULL },
 441     { "pkinit_require_krbtgt_otherName", krb5_config_string, NULL },
 442     { "pkinit_require_hostname_match", krb5_config_string, NULL },
 443 #if 0
 444     { "anonymous", krb5_config_string, check_boolean },
 445 #endif
 446     { "", krb5_config_list, appdefaults_entries },
 447     { NULL }
 448 };
 449
 450 struct entry realms_entries[] = {
 451     { "forwardable", krb5_config_string, check_boolean },
 452     { "proxiable", krb5_config_string, check_boolean },
 453     { "ticket_lifetime", krb5_config_string, check_time },
 454     { "renew_lifetime", krb5_config_string, check_time },
 455     { "warn_pwexpire", krb5_config_string, check_time },
 456     { "kdc", krb5_config_string, check_host },
 457     { "admin_server", krb5_config_string, check_host },
 458     { "kpasswd_server", krb5_config_string, check_host },
 459     { "krb524_server", krb5_config_string, check_host },
 460     { "v4_name_convert", krb5_config_list, v4_name_convert_entries },
 461     { "v4_instance_convert", krb5_config_list, all_strings },
 462     { "v4_domains", krb5_config_string, NULL },
 463     { "default_domain", krb5_config_string, NULL },
 464     { "win2k_pkinit", krb5_config_string, NULL },
 465     /* MIT stuff */
 466     { "admin_keytab", krb5_config_string, mit_entry },
 467     { "acl_file", krb5_config_string, mit_entry },
 468     { "dict_file", krb5_config_string, mit_entry },
 469     { "kadmind_port", krb5_config_string, mit_entry },
 470     { "kpasswd_port", krb5_config_string, mit_entry },
 471     { "master_key_name", krb5_config_string, mit_entry },
 472     { "master_key_type", krb5_config_string, mit_entry },
 473     { "key_stash_file", krb5_config_string, mit_entry },
 474     { "max_life", krb5_config_string, mit_entry },
 475     { "max_renewable_life", krb5_config_string, mit_entry },
 476     { "default_principal_expiration", krb5_config_string, mit_entry },
 477     { "default_principal_flags", krb5_config_string, mit_entry },
 478     { "supported_enctypes", krb5_config_string, mit_entry },
 479     { "database_name", krb5_config_string, mit_entry },
 480     { NULL }
 481 };
 482
 483 struct entry realms_foobar[] = {
 484     { "", krb5_config_list, realms_entries },
 485     { NULL }
 486 };
 487
 488
 489 struct entry kdc_database_entries[] = {
 490     { "realm", krb5_config_string, NULL },
 491     { "dbname", krb5_config_string, NULL },
 492     { "mkey_file", krb5_config_string, NULL },
 493     { "acl_file", krb5_config_string, NULL },
 494     { "log_file", krb5_config_string, NULL },
 495     { NULL }
 496 };
 497
 498 struct entry kdc_entries[] = {
 499     { "database", krb5_config_list, kdc_database_entries },
 500     { "key-file", krb5_config_string, NULL },
 501     { "logging", krb5_config_string, check_log },
 502     { "max-request", krb5_config_string, check_bytes },
 503     { "require-preauth", krb5_config_string, check_boolean },
 504     { "ports", krb5_config_string, NULL },
 505     { "addresses", krb5_config_string, NULL },
 506     { "enable-kerberos4", krb5_config_string, check_boolean },
 507     { "enable-524", krb5_config_string, check_boolean },
 508     { "enable-http", krb5_config_string, check_boolean },
 509     { "check-ticket-addresses", krb5_config_string, check_boolean },
 510     { "allow-null-ticket-addresses", krb5_config_string, check_boolean },
 511     { "allow-anonymous", krb5_config_string, check_boolean },
 512     { "v4_realm", krb5_config_string, NULL },
 513     { "enable-kaserver", krb5_config_string, check_boolean, 1 },
 514     { "encode_as_rep_as_tgs_rep", krb5_config_string, check_boolean },
 515     { "kdc_warn_pwexpire", krb5_config_string, check_time },
 516     { "use_2b", krb5_config_list, NULL },
 517     { "enable-pkinit", krb5_config_string, check_boolean },
 518     { "pkinit_identity", krb5_config_string, NULL },
 519     { "pkinit_anchors", krb5_config_string, NULL },
 520     { "pkinit_pool", krb5_config_string, NULL },
 521     { "pkinit_revoke", krb5_config_string, NULL },
 522     { "pkinit_kdc_ocsp", krb5_config_string, NULL },
 523     { "pkinit_principal_in_certificate", krb5_config_string, NULL },
 524     { "pkinit_dh_min_bits", krb5_config_string, NULL },
 525     { "pkinit_allow_proxy_certificate", krb5_config_string, NULL },
 526     { "hdb-ldap-create-base", krb5_config_string, NULL },
 527     { "v4-realm", krb5_config_string, NULL },
 528     { NULL }
 529 };
 530
 531 struct entry kadmin_entries[] = {
 532     { "password_lifetime", krb5_config_string, check_time },
 533     { "default_keys", krb5_config_string, NULL },
 534     { "use_v4_salt", krb5_config_string, NULL },
 535     { "require-preauth", krb5_config_string, check_boolean },
 536     { NULL }
 537 };
 538 struct entry log_strings[] = {
 539     { "", krb5_config_string, check_log },
 540     { NULL }
 541 };
 542
 543
 544 /* MIT stuff */
 545 struct entry kdcdefaults_entries[] = {
 546     { "kdc_ports", krb5_config_string, mit_entry },
 547     { "v4_mode", krb5_config_string, mit_entry },
 548     { NULL }
 549 };
 550
 551 struct entry capaths_entries[] = {
 552     { "", krb5_config_list, all_strings },
 553     { NULL }
 554 };
 555
 556 struct entry password_quality_entries[] = {
 557     { "policies", krb5_config_string, NULL },
 558     { "external_program", krb5_config_string, NULL },
 559     { "min_classes", krb5_config_string, check_numeric },
 560     { "min_length", krb5_config_string, check_numeric },
 561     { "", krb5_config_list, all_strings },
 562     { NULL }
 563 };
 564
 565 struct entry toplevel_sections[] = {
 566     { "libdefaults" , krb5_config_list, libdefaults_entries },
 567     { "realms", krb5_config_list, realms_foobar },
 568     { "domain_realm", krb5_config_list, all_strings },
 569     { "logging", krb5_config_list, log_strings },
 570     { "kdc", krb5_config_list, kdc_entries },
 571     { "kadmin", krb5_config_list, kadmin_entries },
 572     { "appdefaults", krb5_config_list, appdefaults_entries },
 573     { "gssapi", krb5_config_list, NULL },
 574     { "capaths", krb5_config_list, capaths_entries },
 575     { "password_quality", krb5_config_list, password_quality_entries },
 576     /* MIT stuff */
 577     { "kdcdefaults", krb5_config_list, kdcdefaults_entries },
 578     { NULL }
 579 };
 580
 581
 582 static int
 583 check_section(krb5_context context, const char *path, krb5_config_section *cf,
 584               struct entry *entries)
 585 {
 586     int error = 0;
 587     krb5_config_section *p;
 588     struct entry *e;
 589
 590     char *local;
 591
 592     for(p = cf; p != NULL; p = p->next) {
 593         local = NULL;
 594         if (asprintf(&local, "%s/%s", path, p->name) < 0 || local == NULL)
 595             errx(1, "out of memory");
 596         for(e = entries; e->name != NULL; e++) {
 597             if(*e->name == '\0' || strcmp(e->name, p->name) == 0) {
 598                 if(e->type != p->type) {
 599                     krb5_warnx(context, "%s: unknown or wrong type", local);
 600                     error |= 1;
 601                 } else if(p->type == krb5_config_string && e->check_data != NULL) {
 602                     error |= (*(check_func_t)e->check_data)(context, local, p->u.string);
 603                 } else if(p->type == krb5_config_list && e->check_data != NULL) {
 604                     error |= check_section(context, local, p->u.list, e->check_data);
 605                 }
 606                 if(e->deprecated) {
 607                     krb5_warnx(context, "%s: is a deprecated entry", local);
 608                     error |= 1;
 609                 }
 610                 break;
 611             }
 612         }
 613         if(e->name == NULL) {
 614             krb5_warnx(context, "%s: unknown entry", local);
 615             error |= 1;
 616         }
 617         free(local);
 618     }
 619     return error;
 620 }
 621
 622
 623 static void
 624 dumpconfig(int level, krb5_config_section *top)
 625 {
 626     krb5_config_section *x;
 627     for(x = top; x; x = x->next) {
 628         switch(x->type) {
 629         case krb5_config_list:
 630             if(level == 0) {
 631                 printf("[%s]\n", x->name);
 632             } else {
 633                 printf("%*s%s = {\n", 4 * level, " ", x->name);
 634             }
 635             dumpconfig(level + 1, x->u.list);
 636             if(level > 0)
 637                 printf("%*s}\n", 4 * level, " ");
 638             break;
 639         case krb5_config_string:
 640             printf("%*s%s = %s\n", 4 * level, " ", x->name, x->u.string);
 641             break;
 642         }
 643     }
 644 }
 645
 646 int
 647 main(int argc, char **argv)
 648 {
 649     krb5_context context;
 650     krb5_error_code ret;
 651     krb5_config_section *tmp_cf;
 652     int optidx = 0;
 653
 654     setprogname (argv[0]);
 655
 656     ret = krb5_init_context(&context);
 657     if (ret == KRB5_CONFIG_BADFORMAT)
 658         errx (1, "krb5_init_context failed to parse configuration file");
 659     else if (ret)
 660         errx (1, "krb5_init_context failed with %d", ret);
 661
 662     if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
 663         usage(1);
 664
 665     if (help_flag)
 666         usage (0);
 667
 668     if(version_flag){
 669         print_version(NULL);
 670         exit(0);
 671     }
 672
 673     argc -= optidx;
 674     argv += optidx;
 675
 676     tmp_cf = NULL;
 677     if(argc == 0)
 678         krb5_get_default_config_files(&argv);
 679
 680     while(*argv) {
 681         ret = krb5_config_parse_file_multi(context, *argv, &tmp_cf);
 682         if (ret != 0)
 683             krb5_warn (context, ret, "krb5_config_parse_file");
 684         argv++;
 685     }
 686
 687     if(dumpconfig_flag)
 688         dumpconfig(0, tmp_cf);
 689
 690     return check_section(context, "", tmp_cf, toplevel_sections);
 691 }