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use tty(1) to check if /dev/tty is usable or not

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37169 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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naruse 2012-10-12 16:03:41 +00:00
parent 8d236bc0b1
commit 78e3185a20
1 changed files with 1 additions and 1 deletions
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2
test/ruby/test_io.rb
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@ -2429,8 +2429,8 @@ End
def test_ioctl_linux2
return if /linux/ !~ RUBY_PLATFORM
return if /^i.?86|^x86_64/ !~ RUBY_PLATFORM
return unless File.exist?('/dev/tty')
return unless system('tty', '-s') # stdin is not a terminal
File.open('/dev/tty') { |f|
tiocgwinsz=0x5413
winsize=""