Add 'append', LIBGUESTFS_APPEND to set additional kernel options.

python/guestfs-py.c

@@ -632,6 +632,54 @@ py_guestfs_get_path (PyObject *self, PyObject *args)
   return py_r;
 }
 
+static PyObject *
+py_guestfs_set_append (PyObject *self, PyObject *args)
+{
+  PyObject *py_g;
+  guestfs_h *g;
+  PyObject *py_r;
+  int r;
+  const char *append;
+
+  if (!PyArg_ParseTuple (args, (char *) "Os:guestfs_set_append",
+                         &py_g, &append))
+    return NULL;
+  g = get_handle (py_g);
+
+  r = guestfs_set_append (g, append);
+  if (r == -1) {
+    PyErr_SetString (PyExc_RuntimeError, guestfs_last_error (g));
+    return NULL;
+  }
+
+  Py_INCREF (Py_None);
+  py_r = Py_None;
+  return py_r;
+}
+
+static PyObject *
+py_guestfs_get_append (PyObject *self, PyObject *args)
+{
+  PyObject *py_g;
+  guestfs_h *g;
+  PyObject *py_r;
+  const char *r;
+
+  if (!PyArg_ParseTuple (args, (char *) "O:guestfs_get_append",
+                         &py_g))
+    return NULL;
+  g = get_handle (py_g);
+
+  r = guestfs_get_append (g);
+  if (r == NULL) {
+    PyErr_SetString (PyExc_RuntimeError, guestfs_last_error (g));
+    return NULL;
+  }
+
+  py_r = PyString_FromString (r);
+  return py_r;
+}
+
 static PyObject *
 py_guestfs_set_autosync (PyObject *self, PyObject *args)
 {
@@ -3367,6 +3415,8 @@ static PyMethodDef methods[] = {
   { (char *) "get_qemu", py_guestfs_get_qemu, METH_VARARGS, NULL },
   { (char *) "set_path", py_guestfs_set_path, METH_VARARGS, NULL },
   { (char *) "get_path", py_guestfs_get_path, METH_VARARGS, NULL },
+  { (char *) "set_append", py_guestfs_set_append, METH_VARARGS, NULL },
+  { (char *) "get_append", py_guestfs_get_append, METH_VARARGS, NULL },
   { (char *) "set_autosync", py_guestfs_set_autosync, METH_VARARGS, NULL },
   { (char *) "get_autosync", py_guestfs_get_autosync, METH_VARARGS, NULL },
   { (char *) "set_verbose", py_guestfs_set_verbose, METH_VARARGS, NULL },

python/guestfs.py

@@ -192,6 +192,30 @@ class GuestFS:
         """
         return libguestfsmod.get_path (self._o)
 
+    def set_append (self, append):
+        u"""This function is used to add additional options to the
+        guest kernel command line.
+        
+        The default is "NULL" unless overridden by setting
+        "LIBGUESTFS_APPEND" environment variable.
+        
+        The string "append" is stashed in the libguestfs handle,
+        so the caller must make sure it remains valid for the
+        lifetime of the handle.
+        
+        Setting "append" to "NULL" means *no* additional options
+        are passed (libguestfs always adds a few of its own).
+        """
+        return libguestfsmod.set_append (self._o, append)
+
+    def get_append (self):
+        u"""Return the additional kernel options which are added to
+        the guest kernel command line.
+        
+        If "NULL" then no options are added.
+        """
+        return libguestfsmod.get_append (self._o)
+
     def set_autosync (self, autosync):
         u"""If "autosync" is true, this enables autosync. Libguestfs
         will make a best effort attempt to run "g.umount_all"