/usr/lib64/erlang/lib/kernel-8.3.2/src/ Current File: //usr/lib64/erlang/lib/kernel-8.3.2/src/inet_res.hrl
%%
%% %CopyrightBegin%
%% 
%% Copyright Ericsson AB 1997-2020. All Rights Reserved.
%% 
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
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%%     http://www.apache.org/licenses/LICENSE-2.0
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%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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%% %CopyrightEnd%
%%
%%
%% Dns & resolver defintions
%%

%% milli second for requests
-define(RES_TIMEOUT,           2000).

%% milli second to wait before next request after a failure
-define(RES_SERVFAIL_RETRY_TO, 1500).

%% number of retry
-define(RES_RETRY,             3).

%% seconds between file_info
-define(RES_FILE_UPDATE_TM,    5).

%% number of cached dns_rr
-define(CACHE_LIMIT,           100).

%% refresh interval
-define(CACHE_REFRESH,         60*60*1000).

%% maximum packet size
-define(PACKETSZ,              512).

%% maximum domain name
-define(MAXDNAME,              256).

%% maximum compressed domain name
-define(MAXCDNAME,             255).

%% maximum length of domain label
-define(MAXLABEL,              63).

%%  Number of bytes of fixed size data in query structure 
-define(QFIXEDSZ,              4).

%% number of bytes of fixed size data in resource record 
-define(RRFIXEDSZ,             10).

%%
%% Internet nameserver port number
%%
-define(NAMESERVER_PORT,       53).