+
+/*
+ * structure for tracking LDAP server host, ports, DNs, etc.
+ */
+typedef struct ldap_server {
+ char *lsrv_host;
+ char *lsrv_dn; /* if NULL, use default */
+ int lsrv_port;
+ struct ldap_server *lsrv_next;
+} LDAPServer;
+
+
+/*
+ * structure for representing an LDAP server connection
+ */
+typedef struct ldap_conn {
+ Sockbuf *lconn_sb;
+ int lconn_refcnt;
+ time_t lconn_lastused; /* time */
+ int lconn_status;
+#define LDAP_CONNST_NEEDSOCKET 1
+#define LDAP_CONNST_CONNECTING 2
+#define LDAP_CONNST_CONNECTED 3
+ LDAPServer *lconn_server;
+ char *lconn_krbinstance;
+ struct ldap_conn *lconn_next;
+ BerElement *lconn_ber;/* ber receiving on this conn. */
+} LDAPConn;
+
+
+/*
+ * structure used to track outstanding requests
+ */
+typedef struct ldapreq {
+ ber_int_t lr_msgid; /* the message id */
+ int lr_status; /* status of request */
+#define LDAP_REQST_INPROGRESS 1
+#define LDAP_REQST_CHASINGREFS 2
+#define LDAP_REQST_NOTCONNECTED 3
+#define LDAP_REQST_WRITING 4
+ int lr_outrefcnt; /* count of outstanding referrals */
+ ber_int_t lr_origid; /* original request's message id */
+ int lr_parentcnt; /* count of parent requests */
+ ber_tag_t lr_res_msgtype; /* result message type */
+ ber_int_t lr_res_errno; /* result LDAP errno */
+ char *lr_res_error; /* result error string */
+ char *lr_res_matched;/* result matched DN string */
+ BerElement *lr_ber; /* ber encoded request contents */
+ LDAPConn *lr_conn; /* connection used to send request */
+ struct ldapreq *lr_parent; /* request that spawned this referral */
+ struct ldapreq *lr_refnext; /* next referral spawned */
+ struct ldapreq *lr_prev; /* previous request */
+ struct ldapreq *lr_next; /* next request */
+} LDAPRequest;
+
+/*
+ * structure for client cache
+ */
+#define LDAP_CACHE_BUCKETS 31 /* cache hash table size */
+typedef struct ldapcache {
+ LDAPMessage *lc_buckets[LDAP_CACHE_BUCKETS];/* hash table */
+ LDAPMessage *lc_requests; /* unfulfilled reqs */
+ long lc_timeout; /* request timeout */
+ ber_len_t lc_maxmem; /* memory to use */
+ ber_len_t lc_memused; /* memory in use */
+ int lc_enabled; /* enabled? */
+ unsigned long lc_options; /* options */
+#define LDAP_CACHE_OPT_CACHENOERRS 0x00000001
+#define LDAP_CACHE_OPT_CACHEALLERRS 0x00000002
+} LDAPCache;
+
+/*
+ * handy macro for checking if handle is connectionless
+ */
+
+#define LDAP_IS_CLDAP(ld) ((ld)->ld_cldapnaddr>0)
+