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-rw-r--r--lib/kernel/test/inet_SUITE.erl30
1 files changed, 28 insertions, 2 deletions
diff --git a/lib/kernel/test/inet_SUITE.erl b/lib/kernel/test/inet_SUITE.erl
index eb8f918491..f4f27933a5 100644
--- a/lib/kernel/test/inet_SUITE.erl
+++ b/lib/kernel/test/inet_SUITE.erl
@@ -26,7 +26,8 @@
t_gethostbyaddr_v6/1, t_getaddr_v6/1, t_gethostbyname_v6/1,
ipv4_to_ipv6/1, host_and_addr/1, parse/1, t_gethostnative/1,
gethostnative_parallell/1, cname_loop/1,
- gethostnative_soft_restart/1,gethostnative_debug_level/1,getif/1]).
+ gethostnative_soft_restart/1,gethostnative_debug_level/1,getif/1,
+ getif_ifr_name_overflow/1,getservbyname_overflow/1]).
-export([get_hosts/1, get_ipv6_hosts/1, parse_hosts/1, parse_address/1,
kill_gethost/0, parallell_gethost/0]).
@@ -39,7 +40,7 @@ all(suite) ->
ipv4_to_ipv6, host_and_addr, parse,t_gethostnative,
gethostnative_parallell, cname_loop,
gethostnative_debug_level,gethostnative_soft_restart,
- getif].
+ getif,getif_ifr_name_overflow,getservbyname_overflow].
init_per_testcase(_Func, Config) ->
Dog = test_server:timetrap(test_server:seconds(60)),
@@ -876,6 +877,17 @@ getif(Config) when is_list(Config) ->
?line {ok,Address} = inet:getaddr(Hostname, inet),
?line {ok,Loopback} = inet:getaddr("localhost", inet),
?line {ok,Interfaces} = inet:getiflist(),
+ ?line HWAs =
+ lists:sort(
+ lists:foldl(
+ fun (I, Acc) ->
+ case inet:ifget(I, [hwaddr]) of
+ {ok,[{hwaddr,A}]} -> [A|Acc];
+ {ok,[]} -> Acc
+ end
+ end, [], Interfaces)),
+ ?line io:format("HWAs = ~p~n", [HWAs]),
+ ?line length(HWAs) > 0 orelse ?t:fail(no_HWAs),
?line Addresses =
lists:sort(
lists:foldl(
@@ -891,6 +903,20 @@ getif(Config) when is_list(Config) ->
?line true = ip_member(Loopback, Addresses),
?line ok.
+getif_ifr_name_overflow(doc) ->
+ "Test long interface names do not overrun buffer";
+getif_ifr_name_overflow(Config) when is_list(Config) ->
+ %% emulator should not crash
+ ?line {ok,[]} = inet:ifget(lists:duplicate(128, "x"), [addr]),
+ ok.
+
+getservbyname_overflow(doc) ->
+ "Test long service names do not overrun buffer";
+getservbyname_overflow(Config) when is_list(Config) ->
+ %% emulator should not crash
+ ?line {error,einval} = inet:getservbyname(list_to_atom(lists:flatten(lists:duplicate(128, "x"))), tcp),
+ ok.
+
%% Works just like lists:member/2, except that any {127,_,_,_} tuple
%% matches any other {127,_,_,_}. We do this to handle Linux systems
%% that use (for instance) 127.0.1.1 as the IP address for the hostname.