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