Jonathan Oddy 60e7f43998 [stable-2.7] 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. (cherry picked from commit f2dccb9) Co-authored-by: Jonathan Oddy <jonathan.oddy@transferwise.com>		2018-10-15 10:54:04 -07:00
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ansible	[stable-2.7] Restore SIGPIPE handler to DFL on POpen	2018-10-15 10:54:04 -07:00