rumba: ssh_support: Fix passing of array

The array was returned back instead of the raw output of stdout after
executing a command, resulting in weird behaviour.

2 files changed, 11 insertions, 8 deletions

diff --git a/rumba/ssh_support.py b/rumba/ssh_support.py
index c6615c3..30ada62 100644
--- a/rumba/ssh_support.py
+++ b/rumba/ssh_support.py
@@ -33,7 +33,7 @@ def _print_stream(stream):
             o_array = o.split('\\n')
             for oi in o_array:
                 print(oi)
-            return o_array
+        return o
 
 def execute_commands(testbed, ssh_config, commands, time_out=3):
     '''
@@ -53,16 +53,19 @@ def execute_commands(testbed, ssh_config, commands, time_out=3):
         ssh_client.connect(ssh_config.hostname, ssh_config.port,
                            testbed.username, testbed.password,
                            look_for_keys=True, timeout=time_out)
+        o = ""
         for command in commands:
             print("%s@%s:%s >> %s" % (testbed.username,
-                    ssh_config.hostname, ssh_config.port, command))
+                                      ssh_config.hostname,
+                                      ssh_config.port,
+                                      command))
             envars = '. /etc/profile;'
             command = envars + ' ' + command
             stdin, stdout, stderr = ssh_client.exec_command(command)
-            o_array = _print_stream(stdout)
+            o = _print_stream(stdout)
             _print_stream(stderr)
         ssh_client.close()
-        return o_array
+        return o
 
     except Exception as e:
         print(str(e))
@@ -82,9 +85,9 @@ def execute_command(testbed, ssh_config, command, time_out=3):
 
     @return: stdout resulting from the command
     '''
-    o_array = execute_commands(testbed, ssh_config, [command], time_out)
-    if o_array != None:
-        return o_array[0]
+    o = execute_commands(testbed, ssh_config, [command], time_out)
+    if o != None:
+        return o
 
 def copy_file_to_testbed(testbed, ssh_config, text, file_name):
     '''
diff --git a/rumba/testbeds/emulab.py b/rumba/testbeds/emulab.py
index 5f85ddb..c031327 100644
--- a/rumba/testbeds/emulab.py
+++ b/rumba/testbeds/emulab.py
@@ -203,7 +203,7 @@ class Testbed(mod.Testbed):
         '''
 
         for node in experiment.nodes:
-            node.ssh_config.hostname = self.full_name(experiment.nodes[0].name)
+            node.ssh_config.hostname = self.full_name(node.name)
 
         cmd = 'cat /var/emulab/boot/topomap'
         topomap = ssh.execute_command(self, experiment.nodes[0].ssh_config, cmd)