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file.c: chardev is loadable

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* file.c (ruby_is_fd_loadable): allow character devices to load,
  e.g., `ruby /dev/null` exits successfully.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63143 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2018-04-13 06:26:30 +00:00
parent 83c961665d
commit 081df64083
2 changed files with 6 additions and 1 deletions
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2
file.c
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@ -5959,7 +5959,7 @@ ruby_is_fd_loadable(int fd)
if (S_ISREG(st.st_mode))
return 1;
if (S_ISFIFO(st.st_mode))
if (S_ISFIFO(st.st_mode) || S_ISCHR(st.st_mode))
return -1;
if (S_ISDIR(st.st_mode))

5
test/ruby/test_rubyoptions.rb
View file

@ -1020,4 +1020,9 @@ class TestRubyOptions < Test::Unit::TestCase
end
end
end
def test_null_script
skip "#{IO::NULL} is not a character device" unless File.chardev?(IO::NULL)
assert_in_out_err([IO::NULL], success: true)
end
end