[Python-checkins] cpython (3.3): Issue #17795: Reverted backwards-incompatible change in SysLogHandler with Unix

vinay.sajip python-checkins at python.org
Mon Apr 22 11:14:29 CEST 2013


http://hg.python.org/cpython/rev/d03784713786
changeset:   83490:d03784713786
branch:      3.3
parent:      83486:9df9931fae96
user:        Vinay Sajip <vinay_sajip at yahoo.co.uk>
date:        Mon Apr 22 10:07:40 2013 +0100
summary:
  Issue #17795: Reverted backwards-incompatible change in SysLogHandler with Unix domain sockets.

files:
  Lib/logging/handlers.py |  29 ++++++++++++++++++++++++-----
  Misc/NEWS               |   3 +++
  2 files changed, 27 insertions(+), 5 deletions(-)


diff --git a/Lib/logging/handlers.py b/Lib/logging/handlers.py
--- a/Lib/logging/handlers.py
+++ b/Lib/logging/handlers.py
@@ -1,4 +1,4 @@
-# Copyright 2001-2012 by Vinay Sajip. All Rights Reserved.
+# Copyright 2001-2013 by Vinay Sajip. All Rights Reserved.
 #
 # Permission to use, copy, modify, and distribute this software and its
 # documentation for any purpose and without fee is hereby granted,
@@ -18,7 +18,7 @@
 Additional handlers for the logging package for Python. The core package is
 based on PEP 282 and comments thereto in comp.lang.python.
 
-Copyright (C) 2001-2012 Vinay Sajip. All Rights Reserved.
+Copyright (C) 2001-2013 Vinay Sajip. All Rights Reserved.
 
 To use, simply 'import logging.handlers' and log away!
 """
@@ -767,7 +767,7 @@
     }
 
     def __init__(self, address=('localhost', SYSLOG_UDP_PORT),
-                 facility=LOG_USER, socktype=socket.SOCK_DGRAM):
+                 facility=LOG_USER, socktype=None):
         """
         Initialize a handler.
 
@@ -786,18 +786,37 @@
             self._connect_unixsocket(address)
         else:
             self.unixsocket = False
+            if socktype is None:
+                socktype = socket.SOCK_DGRAM
             self.socket = socket.socket(socket.AF_INET, socktype)
             if socktype == socket.SOCK_STREAM:
                 self.socket.connect(address)
+            self.socktype = socktype
         self.formatter = None
 
     def _connect_unixsocket(self, address):
-        self.socket = socket.socket(socket.AF_UNIX, self.socktype)
+        use_socktype = self.socktype
+        if use_socktype is None:
+            use_socktype = socket.SOCK_DGRAM
+        self.socket = socket.socket(socket.AF_UNIX, use_socktype)
         try:
             self.socket.connect(address)
+            # it worked, so set self.socktype to the used type
+            self.socktype = use_socktype
         except socket.error:
             self.socket.close()
-            raise
+            if self.socktype is not None:
+                # user didn't specify falling back, so fail
+                raise
+            use_socktype = socket.SOCK_STREAM
+            self.socket = socket.socket(socket.AF_UNIX, use_socktype)
+            try:
+                self.socket.connect(address)
+                # it worked, so set self.socktype to the used type
+                self.socktype = use_socktype
+            except socket.error:
+                self.socket.close()
+                raise
 
     def encodePriority(self, facility, priority):
         """
diff --git a/Misc/NEWS b/Misc/NEWS
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -36,6 +36,9 @@
 Library
 -------
 
+- Issue #17795: Reverted backwards-incompatible change in SysLogHandler with
+  Unix domain sockets.
+
 - Issue #17555: Fix ForkAwareThreadLock so that size of after fork
   registry does not grow exponentially with generation of process.
 

-- 
Repository URL: http://hg.python.org/cpython


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