- Delete own_socketfile to resolve race condition where the permissions

change fails on a Unix socket because it hasn't been created yet (libmilter
   will do this correctly on its own based on umask, the milter doesn't need
   to do it) (LP: #1849712)

dkimpy_milter/__init__.py

@@ -36,7 +36,6 @@ from dkimpy_milter.util import drop_privileges
 from dkimpy_milter.util import setExceptHook
 from dkimpy_milter.util import write_pid
 from dkimpy_milter.util import read_keyfile
-from dkimpy_milter.util import own_socketfile
 from dkimpy_milter.util import fold
 
 __version__ = "1.0.1"
@@ -371,7 +370,6 @@ def main():
     Milter.set_flags(Milter.CHGHDRS + Milter.ADDHDRS)
     miltername = 'dkimpy-filter'
     socketname = milterconfig.get('Socket')
-    own_socketfile(milterconfig)
     drop_privileges(milterconfig)
     sys.stdout.flush()
     if milterconfig.get('Syslog'):

dkimpy_milter/util.py

@@ -146,16 +146,6 @@ def write_pid(milterconfig):
     return pid
 
 
-def own_socketfile(milterconfig):
-    """If socket is Unix socket, chown to UserID before dropping privileges"""
-    import os
-    user, group = user_group(milterconfig.get('UserID'))
-    if milterconfig.get('Socket')[:1] == '/':
-        os.chown(milterconfig.get('Socket')[1:], user, group)
-    if milterconfig.get('Socket')[:6] == "local:":
-        os.chown(milterconfig.get('Socket')[6:], user, group)
-
-
 def read_keyfile(milterconfig, keytype):
     """Read private key from file."""
     import syslog