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[openldap] / servers / slapd / back-ldap / compare.c

diff --git a/servers/slapd/back-ldap/compare.c b/servers/slapd/back-ldap/compare.c
index 206437d4324496a53b58f9c0237cd4cc6789aedb..3ce083f724560c59c1e6f5ddc497838b4898e21c 100644 (file)
--- a/servers/slapd/back-ldap/compare.c
+++ b/servers/slapd/back-ldap/compare.c
@@ -1,25 +1,24 @@
 /* compare.c - ldap backend compare function */
 /* $OpenLDAP$ */
-
-/*
- * Copyright 1999, Howard Chu, All rights reserved. <hyc@highlandsun.com>
- * 
- * Permission is granted to anyone to use this software for any purpose
- * on any computer system, and to alter it and redistribute it, subject
- * to the following restrictions:
- * 
- * 1. The author is not responsible for the consequences of use of this
- *    software, no matter how awful, even if they arise from flaws in it.
- * 
- * 2. The origin of this software must not be misrepresented, either by
- *    explicit claim or by omission.  Since few users ever read sources,
- *    credits should appear in the documentation.
- * 
- * 3. Altered versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.  Since few users
- *    ever read sources, credits should appear in the documentation.
- * 
- * 4. This notice may not be removed or altered.
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2003-2005 The OpenLDAP Foundation.
+ * Portions Copyright 1999-2003 Howard Chu.
+ * Portions Copyright 2000-2003 Pierangelo Masarati.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was initially developed by the Howard Chu for inclusion
+ * in OpenLDAP Software and subsequently enhanced by Pierangelo
+ * Masarati.
  */
 
 #include "portable.h"
@@ -34,26 +33,48 @@
 
 int
 ldap_back_compare(
-    Backend    *be,
-    Connection *conn,
-    Operation  *op,
-    char       *dn,
-    Ava                *ava
-)
+               Operation       *op,
+               SlapReply       *rs )
 {
-       struct ldapinfo *li = (struct ldapinfo *) be->be_private;
-       struct ldapconn *lc;
+       struct ldapconn *lc;
+       ber_int_t       msgid;
+       int             do_retry = 1;
+       LDAPControl     **ctrls = NULL;
+       int             rc = LDAP_SUCCESS;
 
-       lc = ldap_back_getconn(li, conn, op);
-       if (!lc)
-               return( -1 );
+       lc = ldap_back_getconn( op, rs );
+       if (!lc || !ldap_back_dobind( lc, op, rs ) ) {
+               rc = -1;
+               goto cleanup;
+       }
+
+       ctrls = op->o_ctrls;
+#ifdef LDAP_BACK_PROXY_AUTHZ
+       rc = ldap_back_proxy_authz_ctrl( lc, op, rs, &ctrls );
+       if ( rc != LDAP_SUCCESS ) {
+               send_ldap_result( op, rs );
+               rc = -1;
+               goto cleanup;
+       }
+#endif /* LDAP_BACK_PROXY_AUTHZ */
 
-       if (!lc->bound) {
-               ldap_back_dobind(lc, op);
-               if (!lc->bound)
-                       return( -1 );
+retry:
+       rs->sr_err = ldap_compare_ext( lc->lc_ld, op->o_req_ndn.bv_val,
+                       op->orc_ava->aa_desc->ad_cname.bv_val,
+                       &op->orc_ava->aa_value, 
+                       ctrls, NULL, &msgid );
+       rc = ldap_back_op_result( lc, op, rs, msgid, 1 );
+       if ( rs->sr_err == LDAP_UNAVAILABLE && do_retry ) {
+               do_retry = 0;
+               if ( ldap_back_retry(lc, op, rs ) ) {
+                       goto retry;
+               }
        }
 
-       ldap_compare_s( lc->ld, dn, ava->ava_type, ava->ava_value.bv_val );
-       return( ldap_back_op_result( lc, op ) );
+cleanup:
+#ifdef LDAP_BACK_PROXY_AUTHZ
+       (void)ldap_back_proxy_authz_ctrl_free( op, &ctrls );
+#endif /* LDAP_BACK_PROXY_AUTHZ */
+       
+       return rc;
 }