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-rw-r--r--lib/stdlib/test/zip_SUITE.erl25
1 files changed, 22 insertions, 3 deletions
diff --git a/lib/stdlib/test/zip_SUITE.erl b/lib/stdlib/test/zip_SUITE.erl
index 7233c061ef..a57641ef62 100644
--- a/lib/stdlib/test/zip_SUITE.erl
+++ b/lib/stdlib/test/zip_SUITE.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2006-2011. All Rights Reserved.
+%% Copyright Ericsson AB 2006-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -109,13 +109,32 @@ borderline_test(Size, TempDir) ->
ok.
unzip_list(Archive, Name) ->
- case os:find_executable("unzip") of
- Unzip when is_list(Unzip) ->
+ case unix_unzip_exists() of
+ true ->
unzip_list1(Archive, Name);
_ ->
ok
end.
+%% Used to do os:find_executable() to check if unzip exists, but on
+%% some hosts that would give an unzip program which did not take the
+%% "-Z" option.
+%% Here we check that "unzip -Z" (which should display usage) and
+%% check that it exists with status 0.
+unix_unzip_exists() ->
+ case os:type() of
+ {unix,_} ->
+ Port = open_port({spawn,"unzip -Z > /dev/null"}, [exit_status]),
+ receive
+ {Port,{exit_status,0}} ->
+ true;
+ {Port,{exit_status,_Fail}} ->
+ false
+ end;
+ _ ->
+ false
+ end.
+
unzip_list1(Archive, Name) ->
Expect = Name ++ "\n",
cmd_expect("unzip -Z -1 " ++ Archive, Expect).