process.c: uid gid exec options

* process.c (rb_execarg_addopt, rb_execarg_run_options): add :uid and
  :gid options.  [ruby-core:47414] [Feature #6975]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37124 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 44 insertions, 0 deletions

diff --git a/test/ruby/test_process.rb b/test/ruby/test_process.rb
index 134797c2ad..e8c4cfa7d9 100644
--- a/test/ruby/test_process.rb
+++ b/test/ruby/test_process.rb
@@ -1478,6 +1478,50 @@ class TestProcess < Test::Unit::TestCase
     assert_nothing_raised { IO.popen([*TRUECOMMAND, :new_pgroup=>true]) {} }
   end
 
+  def test_execopts_uid
+    feature6975 = '[ruby-core:47414]'
+
+    [30000, [ENV["USER"], Process.uid]].each do |user, uid|
+      assert_nothing_raised(feature6975) do
+        begin
+          system(*TRUECOMMAND, uid: user)
+        rescue Errno::EPERM, NotImplementedError
+        end
+      end
+
+      uid = "#{uid || user}"
+      assert_nothing_raised(feature6975) do
+        begin
+          u = IO.popen([RUBY, "-e", "print Process.uid", uid: user], &:read)
+          assert_equal(uid, u, feature6975)
+        rescue Errno::EPERM, NotImplementedError
+        end
+      end
+    end
+  end
+
+  def test_execopts_gid
+    feature6975 = '[ruby-core:47414]'
+
+    [30000, *Process.groups.map {|g| g = Etc.getgrgid(g); [g.name, g.gid]}].each do |group, gid|
+      assert_nothing_raised(feature6975) do
+        begin
+          system(*TRUECOMMAND, gid: group)
+        rescue Errno::EPERM, NotImplementedError
+        end
+      end
+
+      gid = "#{gid || group}"
+      assert_nothing_raised(feature6975) do
+        begin
+          g = IO.popen([RUBY, "-e", "print Process.gid", gid: group], &:read)
+          assert_equal(gid, g, feature6975)
+        rescue Errno::EPERM, NotImplementedError
+        end
+      end
+    end
+  end
+
   def test_sigpipe
     system(RUBY, "-e", "")
     with_pipe {|r, w|