[project @ Arch-1:robey@lag.net--2003-public%secsh--dev--1.0--patch-155]

fix sending of large sftp packet sizes
fix a bug where packets larger than about 12KB would cause the session to
die on platforms other than osx.  turns out that on most platforms, setting a
socket timeout also causes timeouts to occur on writes (but not on osx).  so
on a huge write, once the os buffers were full, paramiko would get a
socket.timeout exception when writing, and bail.

since the timeout is primarily so we can periodically poll to see if the
session has been killed from elsewhere, do that on a timeout but otherwise
continue trying to write.  large packet sizes (in sftp) should now work.

paramiko/transport.py

@@ -889,6 +889,10 @@ class BaseTransport (threading.Thread):
         while len(out) > 0:
             try:
                 n = self.sock.send(out)
+            except socket.timeout:
+                n = 0
+                if not self.active:
+                    n = -1
             except Exception, x:
                 # could be: (32, 'Broken pipe')
                 n = -1