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-rw-r--r--lib/kernel/test/inet_SUITE.erl31
1 files changed, 29 insertions, 2 deletions
diff --git a/lib/kernel/test/inet_SUITE.erl b/lib/kernel/test/inet_SUITE.erl
index 8b33f4a679..44ec7e7076 100644
--- a/lib/kernel/test/inet_SUITE.erl
+++ b/lib/kernel/test/inet_SUITE.erl
@@ -21,6 +21,7 @@
-include_lib("common_test/include/ct.hrl").
-include_lib("kernel/include/inet.hrl").
+-include_lib("kernel/src/inet_res.hrl").
-include_lib("kernel/src/inet_dns.hrl").
-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
@@ -34,7 +35,7 @@
ipv4_to_ipv6/0, ipv4_to_ipv6/1,
host_and_addr/0, host_and_addr/1,
t_gethostnative/1,
- gethostnative_parallell/1, cname_loop/1,
+ gethostnative_parallell/1, cname_loop/1, missing_hosts_reload/1,
gethostnative_soft_restart/0, gethostnative_soft_restart/1,
gethostnative_debug_level/0, gethostnative_debug_level/1,
lookup_bad_search_option/1,
@@ -56,7 +57,7 @@ all() ->
[t_gethostbyaddr, t_gethostbyname, t_getaddr,
t_gethostbyaddr_v6, t_gethostbyname_v6, t_getaddr_v6,
ipv4_to_ipv6, host_and_addr, {group, parse},
- t_gethostnative, gethostnative_parallell, cname_loop,
+ t_gethostnative, gethostnative_parallell, cname_loop, missing_hosts_reload,
gethostnative_debug_level, gethostnative_soft_restart,
lookup_bad_search_option,
getif, getif_ifr_name_overflow, getservbyname_overflow,
@@ -840,6 +841,32 @@ cname_loop(Config) when is_list(Config) ->
ok.
+%% Test that hosts file gets reloaded correctly in case when it
+% was missing during initial startup
+missing_hosts_reload(Config) when is_list(Config) ->
+ RootDir = proplists:get_value(priv_dir,Config),
+ HostsFile = filename:join(RootDir, atom_to_list(?MODULE) ++ ".hosts"),
+ InetRc = filename:join(RootDir, "inetrc"),
+ ok = file:write_file(InetRc, "{hosts_file, \"" ++ HostsFile ++ "\"}.\n"),
+ {error, enoent} = file:read_file_info(HostsFile),
+ % start a node
+ Pa = filename:dirname(code:which(?MODULE)),
+ {ok, TestNode} = test_server:start_node(?MODULE, slave,
+ [{args, "-pa " ++ Pa ++ " -kernel inetrc '\"" ++ InetRc ++ "\"'"}]),
+ % ensure it has our RC
+ Rc = rpc:call(TestNode, inet_db, get_rc, []),
+ {hosts_file, HostsFile} = lists:keyfind(hosts_file, 1, Rc),
+ % ensure it does not resolve
+ {error, nxdomain} = rpc:call(TestNode, inet_hosts, gethostbyname, ["somehost"]),
+ % write hosts file
+ ok = file:write_file(HostsFile, "1.2.3.4 somehost"),
+ % wait for cached timestamp to expire
+ timer:sleep(?RES_FILE_UPDATE_TM * 1000 + 100),
+ % ensure it DOES resolve
+ {ok,{hostent,"somehost",[],inet,4,[{1,2,3,4}]}} =
+ rpc:call(TestNode, inet_hosts, gethostbyname, ["somehost"]),
+ % cleanup
+ true = test_server:stop_node(TestNode).
%% These must be run in the whole suite since they need
%% the host list and require inet_gethost_native to be started.