[issue18550] internal_setblocking() doesn't check return value of fcntl()

[Roundup Robot]

Roundup Robot added the comment:

New changeset 0a52c66f31f5 by Christian Heimes in branch 'default':
Issue 18550: Check return value of ioctl() / fnctl() in internal_setblocking
https://hg.python.org/cpython/rev/0a52c66f31f5

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nosy: +python-dev

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<http://bugs.python.org/issue18550>
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