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* use execve() to preserve environment variables when exec method is

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failed.  [ruby-core:44093] [ruby-trunk - Bug #6249]

* include/ruby/intern.h (rb_exec_arg): add envp_str and envp_buf field
  to store envp of execve().

* process.c (proc_exec_v): takes envp_str as an argument and use it
  for execve().
  (rb_proc_exec_ne): extended version of rb_proc_exec_n().
  (rb_proc_exec_n): use rb_proc_exec_ne().
  (rb_proc_exec): follow proc_exec_v() change.
  (fill_envp_buf_i): new function.
  (rb_exec_arg_fixup): set up envp_str and envp_buf.
  (save_env_i): removed.
  (save_env): removed.
  (rb_run_exec_options_err): don't modify environment variables.
  (rb_exec_err): use rb_proc_exec_ne().



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35882 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
akr 2012-06-03 08:29:48 +00:00
parent 694035eb35
commit f4f28bf75f
4 changed files with 117 additions and 51 deletions
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6
test/ruby/test_process.rb
View file

@ -303,6 +303,12 @@ class TestProcess < Test::Unit::TestCase
end
end
def test_execopts_preserve_env_on_exec_failure
ENV["mgg"] = nil
assert_raise(Errno::ENOENT) { Process.exec({"mgg" => "mggoo"}, "/nonexistent") }
assert_equal(nil, ENV["mgg"], "[ruby-core:44093] [ruby-trunk - Bug #6249]")
end
def test_execopts_unsetenv_others
h = {}
MANDATORY_ENVS.each {|k| e = ENV[k] and h[k] = e}