2 * Copyright (c) 1997 - 2005 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 #include "krb5_locl.h"
39 #define INIT_FIELD(C, T, E, D, F) \
40 (C)->E = krb5_config_get_ ## T ## _default ((C), NULL, (D), \
41 "libdefaults", F, NULL)
43 #define INIT_FLAG(C, O, V, D, F) \
45 if (krb5_config_get_bool_default((C), NULL, (D),"libdefaults", F, NULL)) { \
51 * Set the list of etypes `ret_etypes' from the configuration variable
55 static krb5_error_code
56 set_etypes (krb5_context context,
58 krb5_enctype **ret_enctypes)
61 krb5_enctype *etypes = NULL;
63 etypes_str = krb5_config_get_strings(context, NULL, "libdefaults",
67 for(i = 0; etypes_str[i]; i++);
68 etypes = malloc((i+1) * sizeof(*etypes));
70 krb5_config_free_strings (etypes_str);
71 krb5_set_error_message (context, ENOMEM, N_("malloc: out of memory", ""));
74 for(j = 0, k = 0; j < i; j++) {
76 if(krb5_string_to_enctype(context, etypes_str[j], &e) != 0)
78 if (krb5_enctype_valid(context, e) != 0)
82 etypes[k] = ETYPE_NULL;
83 krb5_config_free_strings(etypes_str);
85 *ret_enctypes = etypes;
93 static krb5_error_code
94 copy_etypes (krb5_context context,
95 krb5_enctype *enctypes,
96 krb5_enctype **ret_enctypes)
100 for (i = 0; enctypes[i]; i++)
104 *ret_enctypes = malloc(sizeof(ret_enctypes[0]) * i);
105 if (*ret_enctypes == NULL) {
106 krb5_set_error_message(context, ENOMEM,
107 N_("malloc: out of memory", ""));
110 memcpy(*ret_enctypes, enctypes, sizeof(ret_enctypes[0]) * i);
116 * read variables from the configuration file and set in `context'
119 static krb5_error_code
120 init_context_from_config_file(krb5_context context)
124 krb5_enctype *tmptypes;
126 INIT_FIELD(context, time, max_skew, 5 * 60, "clockskew");
127 INIT_FIELD(context, time, kdc_timeout, 3, "kdc_timeout");
128 INIT_FIELD(context, int, max_retries, 3, "max_retries");
130 INIT_FIELD(context, string, http_proxy, NULL, "http_proxy");
132 ret = set_etypes (context, "default_etypes", &tmptypes);
135 free(context->etypes);
136 context->etypes = tmptypes;
138 ret = set_etypes (context, "default_etypes_des", &tmptypes);
141 free(context->etypes_des);
142 context->etypes_des = tmptypes;
144 /* default keytab name */
147 tmp = getenv("KRB5_KTNAME");
149 context->default_keytab = tmp;
151 INIT_FIELD(context, string, default_keytab,
152 KEYTAB_DEFAULT, "default_keytab_name");
154 INIT_FIELD(context, string, default_keytab_modify,
155 NULL, "default_keytab_modify_name");
157 INIT_FIELD(context, string, time_fmt,
158 "%Y-%m-%dT%H:%M:%S", "time_format");
160 INIT_FIELD(context, string, date_fmt,
161 "%Y-%m-%d", "date_format");
163 INIT_FIELD(context, bool, log_utc,
168 /* init dns-proxy slime */
169 tmp = krb5_config_get_string(context, NULL, "libdefaults",
172 roken_gethostby_setup(context->http_proxy, tmp);
173 krb5_free_host_realm (context, context->default_realms);
174 context->default_realms = NULL;
177 krb5_addresses addresses;
180 krb5_set_extra_addresses(context, NULL);
181 adr = krb5_config_get_strings(context, NULL,
185 memset(&addresses, 0, sizeof(addresses));
186 for(a = adr; a && *a; a++) {
187 ret = krb5_parse_address(context, *a, &addresses);
189 krb5_add_extra_addresses(context, &addresses);
190 krb5_free_addresses(context, &addresses);
193 krb5_config_free_strings(adr);
195 krb5_set_ignore_addresses(context, NULL);
196 adr = krb5_config_get_strings(context, NULL,
200 memset(&addresses, 0, sizeof(addresses));
201 for(a = adr; a && *a; a++) {
202 ret = krb5_parse_address(context, *a, &addresses);
204 krb5_add_ignore_addresses(context, &addresses);
205 krb5_free_addresses(context, &addresses);
208 krb5_config_free_strings(adr);
211 INIT_FIELD(context, bool, scan_interfaces, TRUE, "scan_interfaces");
212 INIT_FIELD(context, int, fcache_vno, 0, "fcache_version");
213 /* prefer dns_lookup_kdc over srv_lookup. */
214 INIT_FIELD(context, bool, srv_lookup, TRUE, "srv_lookup");
215 INIT_FIELD(context, bool, srv_lookup, context->srv_lookup, "dns_lookup_kdc");
216 INIT_FIELD(context, int, large_msg_size, 1400, "large_message_size");
217 INIT_FLAG(context, flags, KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME, TRUE, "dns_canonicalize_hostname");
218 INIT_FLAG(context, flags, KRB5_CTX_F_CHECK_PAC, TRUE, "check_pac");
219 context->default_cc_name = NULL;
220 context->default_cc_name_set = 0;
222 ret = krb5_config_get_bool_default(context, NULL, FALSE,
224 "allow_weak_crypto", NULL);
226 krb5_enctype_enable(context, ETYPE_DES_CBC_CRC);
227 krb5_enctype_enable(context, ETYPE_DES_CBC_MD4);
228 krb5_enctype_enable(context, ETYPE_DES_CBC_MD5);
229 krb5_enctype_enable(context, ETYPE_DES_CBC_NONE);
230 krb5_enctype_enable(context, ETYPE_DES_CFB64_NONE);
231 krb5_enctype_enable(context, ETYPE_DES_PCBC_NONE);
237 static krb5_error_code
238 cc_ops_register(krb5_context context)
240 context->cc_ops = NULL;
241 context->num_cc_ops = 0;
243 krb5_cc_register(context, &krb5_acc_ops, TRUE);
244 krb5_cc_register(context, &krb5_fcc_ops, TRUE);
245 krb5_cc_register(context, &krb5_mcc_ops, TRUE);
247 krb5_cc_register(context, &krb5_scc_ops, TRUE);
250 krb5_cc_register(context, &krb5_kcm_ops, TRUE);
255 static krb5_error_code
256 kt_ops_register(krb5_context context)
258 context->num_kt_types = 0;
259 context->kt_types = NULL;
261 krb5_kt_register (context, &krb5_fkt_ops);
262 krb5_kt_register (context, &krb5_wrfkt_ops);
263 krb5_kt_register (context, &krb5_javakt_ops);
264 krb5_kt_register (context, &krb5_mkt_ops);
265 #ifndef HEIMDAL_SMALLER
266 krb5_kt_register (context, &krb5_akf_ops);
268 krb5_kt_register (context, &krb5_any_ops);
274 * Initializes the context structure and reads the configuration file
275 * /etc/krb5.conf. The structure should be freed by calling
276 * krb5_free_context() when it is no longer being used.
278 * @param context pointer to returned context
280 * @return Returns 0 to indicate success. Otherwise an errno code is
281 * returned. Failure means either that something bad happened during
282 * initialization (typically ENOMEM) or that Kerberos should not be
288 krb5_error_code KRB5_LIB_FUNCTION
289 krb5_init_context(krb5_context *context)
297 /* should have a run_once */
298 bindtextdomain(HEIMDAL_TEXTDOMAIN, HEIMDAL_LOCALEDIR);
300 p = calloc(1, sizeof(*p));
304 p->mutex = malloc(sizeof(HEIMDAL_MUTEX));
305 if (p->mutex == NULL) {
309 HEIMDAL_MUTEX_init(p->mutex);
311 ret = krb5_get_default_config_files(&files);
314 ret = krb5_set_config_files(p, files);
315 krb5_free_config_files(files);
319 /* init error tables */
326 krb5_free_context(p);
334 * Make a copy for the Kerberos 5 context, allocated krb5_contex shoud
335 * be freed with krb5_free_context().
337 * @param in the Kerberos context to copy
338 * @param out the copy of the Kerberos, set to NULL error.
340 * @return Returns 0 to indicate success. Otherwise an kerberos et
341 * error code is returned, see krb5_get_error_message().
346 krb5_error_code KRB5_LIB_FUNCTION
347 krb5_copy_context(krb5_context context, krb5_context *out)
354 p = calloc(1, sizeof(*p));
356 krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
360 p->mutex = malloc(sizeof(HEIMDAL_MUTEX));
361 if (p->mutex == NULL) {
362 krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
366 HEIMDAL_MUTEX_init(p->mutex);
369 if (context->default_cc_name)
370 p->default_cc_name = strdup(context->default_cc_name);
371 if (context->default_cc_name_env)
372 p->default_cc_name_env = strdup(context->default_cc_name_env);
374 if (context->etypes) {
375 ret = copy_etypes(context, context->etypes, &p->etypes);
379 if (context->etypes_des) {
380 ret = copy_etypes(context, context->etypes_des, &p->etypes_des);
385 if (context->default_realms) {
386 ret = krb5_copy_host_realm(context,
387 context->default_realms, &p->default_realms);
392 ret = _krb5_config_copy(context, context->cf, &p->cf);
396 /* XXX should copy */
402 if(context->warn_dest != NULL)
406 ret = krb5_set_extra_addresses(p, context->extra_addresses);
409 ret = krb5_set_extra_addresses(p, context->ignore_addresses);
413 ret = _krb5_copy_send_to_kdc_func(p, context);
422 krb5_free_context(p);
427 * Frees the krb5_context allocated by krb5_init_context().
429 * @param context context to be freed.
434 void KRB5_LIB_FUNCTION
435 krb5_free_context(krb5_context context)
437 if (context->default_cc_name)
438 free(context->default_cc_name);
439 if (context->default_cc_name_env)
440 free(context->default_cc_name_env);
441 free(context->etypes);
442 free(context->etypes_des);
443 krb5_free_host_realm (context, context->default_realms);
444 krb5_config_file_free (context, context->cf);
445 free_error_table (context->et_list);
446 free(context->cc_ops);
447 free(context->kt_types);
448 krb5_clear_error_message(context);
449 if(context->warn_dest != NULL)
450 krb5_closelog(context, context->warn_dest);
451 krb5_set_extra_addresses(context, NULL);
452 krb5_set_ignore_addresses(context, NULL);
453 krb5_set_send_to_kdc_func(context, NULL, NULL);
454 if (context->mutex != NULL) {
455 HEIMDAL_MUTEX_destroy(context->mutex);
456 free(context->mutex);
458 memset(context, 0, sizeof(*context));
463 * Reinit the context from a new set of filenames.
465 * @param context context to add configuration too.
466 * @param filenames array of filenames, end of list is indicated with a NULL filename.
468 * @return Returns 0 to indicate success. Otherwise an kerberos et
469 * error code is returned, see krb5_get_error_message().
474 krb5_error_code KRB5_LIB_FUNCTION
475 krb5_set_config_files(krb5_context context, char **filenames)
478 krb5_config_binding *tmp = NULL;
479 while(filenames != NULL && *filenames != NULL && **filenames != '\0') {
480 ret = krb5_config_parse_file_multi(context, *filenames, &tmp);
481 if(ret != 0 && ret != ENOENT && ret != EACCES) {
482 krb5_config_file_free(context, tmp);
488 /* with this enabled and if there are no config files, Kerberos is
489 considererd disabled */
493 krb5_config_file_free(context, context->cf);
495 ret = init_context_from_config_file(context);
499 static krb5_error_code
500 add_file(char ***pfilenames, int *len, char *file)
502 char **pp = *pfilenames;
505 for(i = 0; i < *len; i++) {
506 if(strcmp(pp[i], file) == 0) {
512 pp = realloc(*pfilenames, (*len + 2) * sizeof(*pp));
526 * `pq' isn't free, it's up the the caller
529 krb5_error_code KRB5_LIB_FUNCTION
530 krb5_prepend_config_files(const char *filelist, char **pq, char ***ret_pp)
545 l = strsep_copy(&q, ":", NULL, 0);
550 krb5_free_config_files(pp);
553 l = strsep_copy(&p, ":", fn, l + 1);
554 ret = add_file(&pp, &len, fn);
556 krb5_free_config_files(pp);
564 for (i = 0; pq[i] != NULL; i++) {
567 krb5_free_config_files(pp);
570 ret = add_file(&pp, &len, fn);
572 krb5_free_config_files(pp);
583 * Prepend the filename to the global configuration list.
585 * @param filelist a filename to add to the default list of filename
586 * @param pfilenames return array of filenames, should be freed with krb5_free_config_files().
588 * @return Returns 0 to indicate success. Otherwise an kerberos et
589 * error code is returned, see krb5_get_error_message().
594 krb5_error_code KRB5_LIB_FUNCTION
595 krb5_prepend_config_files_default(const char *filelist, char ***pfilenames)
598 char **defpp, **pp = NULL;
600 ret = krb5_get_default_config_files(&defpp);
604 ret = krb5_prepend_config_files(filelist, defpp, &pp);
605 krb5_free_config_files(defpp);
614 * Get the global configuration list.
616 * @param pfilenames return array of filenames, should be freed with krb5_free_config_files().
618 * @return Returns 0 to indicate success. Otherwise an kerberos et
619 * error code is returned, see krb5_get_error_message().
624 krb5_error_code KRB5_LIB_FUNCTION
625 krb5_get_default_config_files(char ***pfilenames)
627 const char *files = NULL;
629 if (pfilenames == NULL)
632 files = getenv("KRB5_CONFIG");
634 files = krb5_config_file;
636 return krb5_prepend_config_files(files, NULL, pfilenames);
640 * Free a list of configuration files.
642 * @param filenames list to be freed.
644 * @return Returns 0 to indicate success. Otherwise an kerberos et
645 * error code is returned, see krb5_get_error_message().
650 void KRB5_LIB_FUNCTION
651 krb5_free_config_files(char **filenames)
654 for(p = filenames; *p != NULL; p++)
660 * Returns the list of Kerberos encryption types sorted in order of
661 * most preferred to least preferred encryption type. Note that some
662 * encryption types might be disabled, so you need to check with
663 * krb5_enctype_valid() before using the encryption type.
665 * @return list of enctypes, terminated with ETYPE_NULL. Its a static
666 * array completed into the Kerberos library so the content doesn't
672 const krb5_enctype * KRB5_LIB_FUNCTION
673 krb5_kerberos_enctypes(krb5_context context)
675 static const krb5_enctype p[] = {
676 ETYPE_AES256_CTS_HMAC_SHA1_96,
677 ETYPE_AES128_CTS_HMAC_SHA1_96,
680 ETYPE_ARCFOUR_HMAC_MD5,
690 * set `etype' to a malloced list of the default enctypes
693 static krb5_error_code
694 default_etypes(krb5_context context, krb5_enctype **etype)
696 const krb5_enctype *p;
697 krb5_enctype *e = NULL, *ep;
700 p = krb5_kerberos_enctypes(context);
702 for (i = 0; p[i] != ETYPE_NULL; i++) {
703 if (krb5_enctype_valid(context, p[i]) != 0)
705 ep = realloc(e, (n + 2) * sizeof(*e));
708 krb5_set_error_message (context, ENOMEM, N_("malloc: out of memory", ""));
713 e[n + 1] = ETYPE_NULL;
721 * Set the default encryption types that will be use in communcation
722 * with the KDC, clients and servers.
724 * @param context Kerberos 5 context.
725 * @param etypes Encryption types, array terminated with ETYPE_NULL (0).
727 * @return Returns 0 to indicate success. Otherwise an kerberos et
728 * error code is returned, see krb5_get_error_message().
733 krb5_error_code KRB5_LIB_FUNCTION
734 krb5_set_default_in_tkt_etypes(krb5_context context,
735 const krb5_enctype *etypes)
737 krb5_enctype *p = NULL;
741 for (i = 0; etypes[i]; ++i) {
743 ret = krb5_enctype_valid(context, etypes[i]);
750 krb5_set_error_message (context, ENOMEM, N_("malloc: out of memory", ""));
753 memmove(p, etypes, i * sizeof(krb5_enctype));
756 free(context->etypes);
762 * Get the default encryption types that will be use in communcation
763 * with the KDC, clients and servers.
765 * @param context Kerberos 5 context.
766 * @param etypes Encryption types, array terminated with
767 * ETYPE_NULL(0), caller should free array with krb5_xfree():
769 * @return Returns 0 to indicate success. Otherwise an kerberos et
770 * error code is returned, see krb5_get_error_message().
775 krb5_error_code KRB5_LIB_FUNCTION
776 krb5_get_default_in_tkt_etypes(krb5_context context,
777 krb5_enctype **etypes)
783 if(context->etypes) {
784 for(i = 0; context->etypes[i]; i++);
788 krb5_set_error_message (context, ENOMEM, N_("malloc: out of memory", ""));
791 memmove(p, context->etypes, i * sizeof(krb5_enctype));
793 ret = default_etypes(context, &p);
802 * Return the error string for the error code. The caller must not
805 * @param context Kerberos 5 context.
806 * @param code Kerberos error code.
808 * @return the error message matching code
813 const char* KRB5_LIB_FUNCTION
814 krb5_get_err_text(krb5_context context, krb5_error_code code)
816 const char *p = NULL;
818 p = com_right(context->et_list, code);
827 * Init the built-in ets in the Kerberos library.
829 * @param context kerberos context to add the ets too
834 void KRB5_LIB_FUNCTION
835 krb5_init_ets(krb5_context context)
837 if(context->et_list == NULL){
838 krb5_add_et_list(context, initialize_krb5_error_table_r);
839 bindtextdomain(COM_ERR_BINDDOMAIN_krb5, HEIMDAL_LOCALEDIR);
841 krb5_add_et_list(context, initialize_asn1_error_table_r);
842 bindtextdomain(COM_ERR_BINDDOMAIN_asn1, HEIMDAL_LOCALEDIR);
844 krb5_add_et_list(context, initialize_heim_error_table_r);
845 bindtextdomain(COM_ERR_BINDDOMAIN_heim, HEIMDAL_LOCALEDIR);
847 krb5_add_et_list(context, initialize_k524_error_table_r);
848 bindtextdomain(COM_ERR_BINDDOMAIN_k524, HEIMDAL_LOCALEDIR);
851 krb5_add_et_list(context, initialize_hx_error_table_r);
852 bindtextdomain(COM_ERR_BINDDOMAIN_hx, HEIMDAL_LOCALEDIR);
858 * Make the kerberos library default to the admin KDC.
860 * @param context Kerberos 5 context.
861 * @param flag boolean flag to select if the use the admin KDC or not.
866 void KRB5_LIB_FUNCTION
867 krb5_set_use_admin_kdc (krb5_context context, krb5_boolean flag)
869 context->use_admin_kdc = flag;
873 * Make the kerberos library default to the admin KDC.
875 * @param context Kerberos 5 context.
877 * @return boolean flag to telling the context will use admin KDC as the default KDC.
882 krb5_boolean KRB5_LIB_FUNCTION
883 krb5_get_use_admin_kdc (krb5_context context)
885 return context->use_admin_kdc;
889 * Add extra address to the address list that the library will add to
890 * the client's address list when communicating with the KDC.
892 * @param context Kerberos 5 context.
893 * @param addresses addreses to add
895 * @return Returns 0 to indicate success. Otherwise an kerberos et
896 * error code is returned, see krb5_get_error_message().
901 krb5_error_code KRB5_LIB_FUNCTION
902 krb5_add_extra_addresses(krb5_context context, krb5_addresses *addresses)
905 if(context->extra_addresses)
906 return krb5_append_addresses(context,
907 context->extra_addresses, addresses);
909 return krb5_set_extra_addresses(context, addresses);
913 * Set extra address to the address list that the library will add to
914 * the client's address list when communicating with the KDC.
916 * @param context Kerberos 5 context.
917 * @param addresses addreses to set
919 * @return Returns 0 to indicate success. Otherwise an kerberos et
920 * error code is returned, see krb5_get_error_message().
925 krb5_error_code KRB5_LIB_FUNCTION
926 krb5_set_extra_addresses(krb5_context context, const krb5_addresses *addresses)
928 if(context->extra_addresses)
929 krb5_free_addresses(context, context->extra_addresses);
931 if(addresses == NULL) {
932 if(context->extra_addresses != NULL) {
933 free(context->extra_addresses);
934 context->extra_addresses = NULL;
938 if(context->extra_addresses == NULL) {
939 context->extra_addresses = malloc(sizeof(*context->extra_addresses));
940 if(context->extra_addresses == NULL) {
941 krb5_set_error_message (context, ENOMEM, N_("malloc: out of memory", ""));
945 return krb5_copy_addresses(context, addresses, context->extra_addresses);
949 * Get extra address to the address list that the library will add to
950 * the client's address list when communicating with the KDC.
952 * @param context Kerberos 5 context.
953 * @param addresses addreses to set
955 * @return Returns 0 to indicate success. Otherwise an kerberos et
956 * error code is returned, see krb5_get_error_message().
961 krb5_error_code KRB5_LIB_FUNCTION
962 krb5_get_extra_addresses(krb5_context context, krb5_addresses *addresses)
964 if(context->extra_addresses == NULL) {
965 memset(addresses, 0, sizeof(*addresses));
968 return krb5_copy_addresses(context,context->extra_addresses, addresses);
972 * Add extra addresses to ignore when fetching addresses from the
973 * underlaying operating system.
975 * @param context Kerberos 5 context.
976 * @param addresses addreses to ignore
978 * @return Returns 0 to indicate success. Otherwise an kerberos et
979 * error code is returned, see krb5_get_error_message().
984 krb5_error_code KRB5_LIB_FUNCTION
985 krb5_add_ignore_addresses(krb5_context context, krb5_addresses *addresses)
988 if(context->ignore_addresses)
989 return krb5_append_addresses(context,
990 context->ignore_addresses, addresses);
992 return krb5_set_ignore_addresses(context, addresses);
996 * Set extra addresses to ignore when fetching addresses from the
997 * underlaying operating system.
999 * @param context Kerberos 5 context.
1000 * @param addresses addreses to ignore
1002 * @return Returns 0 to indicate success. Otherwise an kerberos et
1003 * error code is returned, see krb5_get_error_message().
1008 krb5_error_code KRB5_LIB_FUNCTION
1009 krb5_set_ignore_addresses(krb5_context context, const krb5_addresses *addresses)
1011 if(context->ignore_addresses)
1012 krb5_free_addresses(context, context->ignore_addresses);
1013 if(addresses == NULL) {
1014 if(context->ignore_addresses != NULL) {
1015 free(context->ignore_addresses);
1016 context->ignore_addresses = NULL;
1020 if(context->ignore_addresses == NULL) {
1021 context->ignore_addresses = malloc(sizeof(*context->ignore_addresses));
1022 if(context->ignore_addresses == NULL) {
1023 krb5_set_error_message (context, ENOMEM, N_("malloc: out of memory", ""));
1027 return krb5_copy_addresses(context, addresses, context->ignore_addresses);
1031 * Get extra addresses to ignore when fetching addresses from the
1032 * underlaying operating system.
1034 * @param context Kerberos 5 context.
1035 * @param addresses list addreses ignored
1037 * @return Returns 0 to indicate success. Otherwise an kerberos et
1038 * error code is returned, see krb5_get_error_message().
1043 krb5_error_code KRB5_LIB_FUNCTION
1044 krb5_get_ignore_addresses(krb5_context context, krb5_addresses *addresses)
1046 if(context->ignore_addresses == NULL) {
1047 memset(addresses, 0, sizeof(*addresses));
1050 return krb5_copy_addresses(context, context->ignore_addresses, addresses);
1054 * Set version of fcache that the library should use.
1056 * @param context Kerberos 5 context.
1057 * @param version version number.
1059 * @return Returns 0 to indicate success. Otherwise an kerberos et
1060 * error code is returned, see krb5_get_error_message().
1065 krb5_error_code KRB5_LIB_FUNCTION
1066 krb5_set_fcache_version(krb5_context context, int version)
1068 context->fcache_vno = version;
1073 * Get version of fcache that the library should use.
1075 * @param context Kerberos 5 context.
1076 * @param version version number.
1078 * @return Returns 0 to indicate success. Otherwise an kerberos et
1079 * error code is returned, see krb5_get_error_message().
1084 krb5_error_code KRB5_LIB_FUNCTION
1085 krb5_get_fcache_version(krb5_context context, int *version)
1087 *version = context->fcache_vno;
1092 * Runtime check if the Kerberos library was complied with thread support.
1094 * @return TRUE if the library was compiled with thread support, FALSE if not.
1100 krb5_boolean KRB5_LIB_FUNCTION
1101 krb5_is_thread_safe(void)
1103 #ifdef ENABLE_PTHREAD_SUPPORT
1111 * Set if the library should use DNS to canonicalize hostnames.
1113 * @param context Kerberos 5 context.
1114 * @param flag if its dns canonicalizion is used or not.
1119 void KRB5_LIB_FUNCTION
1120 krb5_set_dns_canonicalize_hostname (krb5_context context, krb5_boolean flag)
1123 context->flags |= KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME;
1125 context->flags &= ~KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME;
1129 * Get if the library uses DNS to canonicalize hostnames.
1131 * @param context Kerberos 5 context.
1133 * @return return non zero if the library uses DNS to canonicalize hostnames.
1138 krb5_boolean KRB5_LIB_FUNCTION
1139 krb5_get_dns_canonicalize_hostname (krb5_context context)
1141 return (context->flags & KRB5_CTX_F_DNS_CANONICALIZE_HOSTNAME) ? 1 : 0;
1145 * Get current offset in time to the KDC.
1147 * @param context Kerberos 5 context.
1148 * @param sec seconds part of offset.
1149 * @param usec micro seconds part of offset.
1151 * @return returns zero
1156 krb5_error_code KRB5_LIB_FUNCTION
1157 krb5_get_kdc_sec_offset (krb5_context context, int32_t *sec, int32_t *usec)
1160 *sec = context->kdc_sec_offset;
1162 *usec = context->kdc_usec_offset;
1167 * Set current offset in time to the KDC.
1169 * @param context Kerberos 5 context.
1170 * @param sec seconds part of offset.
1171 * @param usec micro seconds part of offset.
1173 * @return returns zero
1178 krb5_error_code KRB5_LIB_FUNCTION
1179 krb5_set_kdc_sec_offset (krb5_context context, int32_t sec, int32_t usec)
1181 context->kdc_sec_offset = sec;
1183 context->kdc_usec_offset = usec;
1188 * Get max time skew allowed.
1190 * @param context Kerberos 5 context.
1192 * @return timeskew in seconds.
1197 time_t KRB5_LIB_FUNCTION
1198 krb5_get_max_time_skew (krb5_context context)
1200 return context->max_skew;
1204 * Set max time skew allowed.
1206 * @param context Kerberos 5 context.
1207 * @param t timeskew in seconds.
1212 void KRB5_LIB_FUNCTION
1213 krb5_set_max_time_skew (krb5_context context, time_t t)
1215 context->max_skew = t;