github
/
fail2ban
mirror of https://github.com/fail2ban/fail2ban
1
0
Fork 0
Code Issues Releases Wiki Activity

ENH: move signal.signal(signal.SIGHUP, signal.SIG_IGN) before fork in server. closes #446

pull/452/head
Daniel Black 2013-11-23 11:33:41 +11:00
parent 28d8aec511
commit f2c529ca7b
1 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
server/server.py
View File

@ -409,6 +409,14 @@ class Server:
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/278731 http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/278731
""" """
# When the first child terminates, all processes in the second child
# are sent a SIGHUP, so it's ignored.
# We need to set this in the parent process, so it gets inherited by the
# child process, and this makes sure that it is effect even if the parent
# terminates quickly.
signal.signal(signal.SIGHUP, signal.SIG_IGN)
try: try:
# Fork a child process so the parent can exit. This will return control # Fork a child process so the parent can exit. This will return control
# to the command line or shell. This is required so that the new process # to the command line or shell. This is required so that the new process
@ -431,10 +439,6 @@ class Server:
# leader. # leader.
os.setsid() os.setsid()
# When the first child terminates, all processes in the second child
# are sent a SIGHUP, so it's ignored.
signal.signal(signal.SIGHUP, signal.SIG_IGN)
try: try:
# Fork a second child to prevent zombies. Since the first child is # Fork a second child to prevent zombies. Since the first child is
# a session leader without a controlling terminal, it's possible for # a session leader without a controlling terminal, it's possible for