Add binding for libssh2_userauth_publickey_frommemory

nselib/libssh2-utility.lua

@@ -95,10 +95,10 @@ function SSHConnection:password_auth (username, password)
 end
 
 ---
--- Attempts to authenticate using provided private key.
+-- Attempts to authenticate using provided private key file.
 --
 -- @param username A username to authenticate as.
--- @param privatekey_file A path to a privatekey.
+-- @param privatekey_file A path to a privatekey file.
 -- @param passphrase A passphrase for the privatekey.
 -- @return true on success or false on failure.
 function SSHConnection:publickey_auth (username, privatekey_file, passphrase)
@@ -113,6 +113,25 @@ function SSHConnection:publickey_auth (username, privatekey_file, passphrase)
   end
 end
 
+---
+-- Attempts to authenticate using provided private key.
+--
+-- @param username A username to authenticate as.
+-- @param privatekey The privatekey as a string.
+-- @param passphrase A passphrase for the privatekey.
+-- @return true on success or false on failure.
+function SSHConnection:publickey_auth_frommemory (username, privatekey, passphrase)
+  if not self.session then
+    return false
+  end
+  if libssh2.userauth_publickey_frommemory(self.session, username, privatekey, passphrase or "") then
+    self.authenticated = true
+    return true
+  else
+    return false
+  end
+end
+
 ---
 -- Closes connection.
 function SSHConnection:disconnect ()