Plug leaks (ITS#1116)

Patch provided by John Morrissey <jwm@horde.net>

libraries/libldap/cyrus.c

@@ -419,6 +419,7 @@ ldap_int_sasl_open(
 
 	rc = sasl_client_new( "ldap", host, session_callbacks,
 		SASL_SECURITY_LAYER, &ctx );
+	ber_memfree( session_callbacks );
 
 	if ( rc != SASL_OK ) {
 		ld->ld_errno = sasl_err2ldap( rc );

libraries/libldap/open.c

@@ -358,6 +358,7 @@ ldap_int_open_connection(
 		that SASL EXTERNAL might be used */
 	if( sasl_host != NULL ) {
 		ldap_int_sasl_open( ld, conn, sasl_host, sasl_ssf );
+		LDAP_FREE( sasl_host );
 	}
 #endif
 

libraries/libldap/unbind.c

@@ -131,6 +131,26 @@ ldap_ld_free(
 		ld->ld_options.ldo_tm_net = NULL;
 	}
 
+	if ( ld->ld_options.ldo_def_sasl_mech != NULL ) {
+		LDAP_FREE( ld->ld_options.ldo_def_sasl_mech );
+		ld->ld_options.ldo_def_sasl_mech = NULL;
+	}
+
+	if ( ld->ld_options.ldo_def_sasl_realm != NULL ) {
+		LDAP_FREE( ld->ld_options.ldo_def_sasl_realm );
+		ld->ld_options.ldo_def_sasl_realm = NULL;
+	}
+
+	if ( ld->ld_options.ldo_def_sasl_authcid != NULL ) {
+		LDAP_FREE( ld->ld_options.ldo_def_sasl_authcid );
+		ld->ld_options.ldo_def_sasl_authcid = NULL;
+	}
+
+	if ( ld->ld_options.ldo_def_sasl_authzid != NULL ) {
+		LDAP_FREE( ld->ld_options.ldo_def_sasl_authzid );
+		ld->ld_options.ldo_def_sasl_authzid = NULL;
+	}
+
 	ber_sockbuf_free( ld->ld_sb );   
    
 	LDAP_FREE( (char *) ld );