[project @ robey@lag.net-20080218045900-wh5168fjqq2o80kd]

merge patch from Dwayne Litzenberger that lets you ask an SSHClient not to
try agent-based auth.

paramiko/client.py

@@ -213,7 +213,7 @@ class SSHClient (object):
         self._policy = policy
 
     def connect(self, hostname, port=22, username=None, password=None, pkey=None,
-                key_filename=None, timeout=None):
+                key_filename=None, timeout=None, allow_agent=True):
         """
         Connect to an SSH server and authenticate to it.  The server's host key
         is checked against the system host keys (see L{load_system_host_keys})
@@ -249,6 +249,8 @@ class SSHClient (object):
         @type key_filename: str
         @param timeout: an optional timeout (in seconds) for the TCP connect
         @type timeout: float
+        @param allow_agent: set to False to disable connecting to the SSH agent
+        @type allow_agent: bool
 
         @raise BadHostKeyException: if the server's host key could not be
             verified
@@ -288,7 +290,8 @@ class SSHClient (object):
 
         if username is None:
             username = getpass.getuser()
-        self._auth(username, password, pkey, key_filename)
+        
+        self._auth(username, password, pkey, key_filename, allow_agent)
     
     def close(self):
         """
@@ -364,7 +367,7 @@ class SSHClient (object):
         """
         return self._transport
         
-    def _auth(self, username, password, pkey, key_filename):
+    def _auth(self, username, password, pkey, key_filename, allow_agent):
         """
         Try, in order:
         
@@ -395,6 +398,7 @@ class SSHClient (object):
                 except SSHException, e:
                     saved_exception = e
         
+        if allow_agent:
             for key in Agent().get_keys():
                 try:
                     self._log(DEBUG, 'Trying SSH agent key %s' % hexlify(key.get_fingerprint()))