Added implementations for all functions

copy_cert.py

@@ -1,20 +1,37 @@
 #!/usr/bin/python
+import paramiko
 import argparse
+import os
+from subprocess import list2cmdline
 
 
 def connection_from_config(name):
     """Create a connection from a Host entry in the .ssh/config file"""
-    pass
-
-
-def scp(connection, src, dst):
+    config = paramiko.config.SSHConfig()
+    cp = os.path.expanduser('~/.ssh/config')
+    with open(cp) as file:
+        config.parse(file)
+    info = config.lookup(name)
+    info['username'] = info.pop('user')
+    info['key_filename'] = info.pop('identityfile')
+    info['port'] = int(info['port'])
+    client = paramiko.client.SSHClient()
+    client.load_host_keys(os.path.expanduser('~/.ssh/known_hosts'))
+    client.connect(**info)
+    return client
+
+
+def scp(connection: paramiko.sftp_client.SFTPClient, src, dst):
     """Function to copy files from src to dst using connection"""
-    pass
+    connection.put(src, dst)
 
 
-def exec_remote(connection, command):
+def exec_remote(connection: paramiko.SSHClient, command):
     """Function to execute specified command on conection"""
-    pass
+    if not isinstance(command, str):
+        command = list2cmdline(command)
+    stdin, stdout, stderr = connection.exec_command(command)
+    return stdout, stderr
 
 
 if __name__ == "__main__":