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5b2c3f2f42
It's a pain to recompile the world if gencache.h changes Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org> Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org> Autobuild-Date(master): Fri Oct 19 18:52:50 CEST 2018 on sn-devel-144
137 lines
3.6 KiB
C
137 lines
3.6 KiB
C
/*
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Unix SMB/CIFS implementation.
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DNS utility library
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Copyright (C) Gerald (Jerry) Carter 2006.
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Copyright (C) Jeremy Allison 2007.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "libads/sitename_cache.h"
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#include "lib/gencache.h"
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/****************************************************************************
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Store and fetch the AD client sitename.
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****************************************************************************/
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#define SITENAME_KEY "AD_SITENAME/DOMAIN/%s"
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static char *sitename_key(const char *realm)
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{
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char *keystr;
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if (asprintf_strupper_m(&keystr, SITENAME_KEY, realm) == -1) {
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return NULL;
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}
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return keystr;
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}
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/****************************************************************************
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Store the AD client sitename.
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We store indefinately as every new CLDAP query will re-write this.
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****************************************************************************/
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bool sitename_store(const char *realm, const char *sitename)
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{
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time_t expire;
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bool ret = False;
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char *key;
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if (!realm || (strlen(realm) == 0)) {
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DEBUG(0,("sitename_store: no realm\n"));
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return False;
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}
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key = sitename_key(realm);
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if (!sitename || (sitename && !*sitename)) {
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DEBUG(5,("sitename_store: deleting empty sitename!\n"));
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ret = gencache_del(key);
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SAFE_FREE(key);
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return ret;
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}
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expire = get_time_t_max(); /* Store indefinately. */
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DEBUG(10,("sitename_store: realm = [%s], sitename = [%s], expire = [%u]\n",
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realm, sitename, (unsigned int)expire ));
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ret = gencache_set( key, sitename, expire );
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SAFE_FREE(key);
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return ret;
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}
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/****************************************************************************
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Fetch the AD client sitename.
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Caller must free.
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****************************************************************************/
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char *sitename_fetch(TALLOC_CTX *mem_ctx, const char *realm)
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{
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char *sitename = NULL;
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time_t timeout;
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bool ret = False;
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const char *query_realm;
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char *key;
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if (!realm || (strlen(realm) == 0)) {
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query_realm = lp_realm();
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} else {
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query_realm = realm;
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}
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key = sitename_key(query_realm);
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ret = gencache_get( key, mem_ctx, &sitename, &timeout );
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SAFE_FREE(key);
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if ( !ret ) {
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DBG_INFO("No stored sitename for realm '%s'\n", query_realm);
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} else {
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DBG_INFO("Returning sitename for realm '%s': \"%s\"\n",
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query_realm, sitename);
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}
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return sitename;
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}
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/****************************************************************************
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Did the sitename change ?
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****************************************************************************/
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bool stored_sitename_changed(const char *realm, const char *sitename)
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{
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bool ret = False;
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char *new_sitename;
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if (!realm || (strlen(realm) == 0)) {
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DEBUG(0,("stored_sitename_changed: no realm\n"));
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return False;
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}
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new_sitename = sitename_fetch(talloc_tos(), realm);
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if (sitename && new_sitename && !strequal(sitename, new_sitename)) {
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ret = True;
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} else if ((sitename && !new_sitename) ||
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(!sitename && new_sitename)) {
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ret = True;
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}
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TALLOC_FREE(new_sitename);
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return ret;
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}
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