configurator: listen :umask parameter for UNIX sockets

Typically UNIX domain sockets are created with more liberal
file permissions than the rest of the application.  By default,
we create UNIX domain sockets to be readable and writable by
all local users to give them the same accessibility as
locally-bound TCP listeners.

This only has an effect on UNIX domain sockets.

This was inspired by Suraj Kurapati in
cfbcd2f00911121536rd0582b8u961f7f2a8c6e546a@mail.gmail.com

1 files changed, 14 insertions, 0 deletions

diff --git a/test/unit/test_socket_helper.rb b/test/unit/test_socket_helper.rb
index dbca69b..c35b0c2 100644
--- a/test/unit/test_socket_helper.rb
+++ b/test/unit/test_socket_helper.rb
@@ -63,6 +63,20 @@ class TestSocketHelper < Test::Unit::TestCase
       File.umask(old_umask)
   end
 
+  def test_bind_listen_unix_umask
+    old_umask = File.umask(0777)
+    tmp = Tempfile.new 'unix.sock'
+    @unix_listener_path = tmp.path
+    File.unlink(@unix_listener_path)
+    @unix_listener = bind_listen(@unix_listener_path, :umask => 077)
+    assert UNIXServer === @unix_listener
+    assert_equal @unix_listener_path, sock_name(@unix_listener)
+    assert_equal 0140700, File.stat(@unix_listener_path).mode
+    assert_equal 0777, File.umask
+    ensure
+      File.umask(old_umask)
+  end
+
   def test_bind_listen_unix_idempotent
     test_bind_listen_unix
     a = bind_listen(@unix_listener)