dbus-misc.c

/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* dbus-misc.c  A few assorted public functions that don't fit elsewhere
 *
 * Copyright (C) 2006 Red Hat, Inc.
 *
 * SPDX-License-Identifier: AFL-2.1 OR GPL-2.0-or-later
 *
 * Licensed under the Academic Free License version 2.1
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */
 
#include <config.h>
#include "dbus-misc.h"
#include "dbus-internals.h"
#include "dbus-string.h"
#include <dbus/dbus-test-tap.h>
 
char *
dbus_try_get_local_machine_id (DBusError *error)
{
  DBusString uuid;
  char *s;
 
  s = NULL;
 
  if (!_dbus_string_init (&uuid))
    {
      dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
      return NULL;
    }
 
  if (!_dbus_get_local_machine_uuid_encoded (&uuid, error))
    {
      _dbus_string_free (&uuid);
      return NULL;
    }
 
  if (!_dbus_string_steal_data (&uuid, &s))
    {
      dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
      _dbus_string_free (&uuid);
      return NULL;
    }
  else
    {
      _dbus_string_free (&uuid);
      return s;
    }
 
}
 
char *
dbus_get_local_machine_id (void)
{
  DBusError error = DBUS_ERROR_INIT;
  char *s;
 
  s = dbus_try_get_local_machine_id (&error);
 
  /* The documentation says dbus_get_local_machine_id() only fails on OOM;
   * this can actually also fail if the D-Bus installation is faulty
   * (no UUID), but we have no good way to report that. Historically,
   * _dbus_get_local_machine_uuid_encoded was responsible for issuing the
   * warning; now we do that here. */
  if (s == NULL)
    {
      if (!dbus_error_has_name (&error, DBUS_ERROR_NO_MEMORY))
        _dbus_warn_check_failed ("%s", error.message);
 
      dbus_error_free (&error);
      return NULL;
    }
 
  return s;
}
 
void
dbus_get_version (int *major_version_p,
                  int *minor_version_p,
                  int *micro_version_p)
{
  if (major_version_p)
    *major_version_p = DBUS_MAJOR_VERSION;
  if (minor_version_p)
    *minor_version_p = DBUS_MINOR_VERSION;
  if (micro_version_p)
    *micro_version_p = DBUS_MICRO_VERSION;
}