ansible/lib
Jonathan Oddy f2dccb90e8 Restore SIGPIPE handler to DFL on POpen
Python sets the SIGPIPE handler to SIG_IGN. On execv() signal handlers are
reset to their defaults, EXCEPT those that are SIG_IGN which are left ignored.
In Python 3 subprocess.popen explicitly resets the SIGPIPE handler to SIG_DFL,
but unfortunately in Python 2.7 it does not. This leads to subprocesses being
executed with SIGPIPE ignored. This is often a problem with bash scripts which
rely on SIGPIPE to terminate commands in a pipe, but can easily be a problem
with other applications.

This implements the Python 3 behaviour for Python 2.7 by using a preexec_fn.
2018-10-12 12:31:24 -07:00
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ansible Restore SIGPIPE handler to DFL on POpen 2018-10-12 12:31:24 -07:00