dbus-uuidgen.c

/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* dbus-uuidgen.c  The guts of the dbus-uuidgen binary live in libdbus, in this file.
 *
 * Copyright (C) 2006  Red Hat, Inc.
 *
 * 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-uuidgen.h"
#include "dbus-internals.h"
#include "dbus-string.h"
#include "dbus-protocol.h"
 
#ifdef DBUS_WIN
#error "dbus-uuidgen should not be needed on Windows"
#endif
 
static dbus_bool_t
return_uuid (DBusGUID   *uuid,
             char      **uuid_p,
             DBusError  *error)
{
  if (uuid_p)
    {
      DBusString encoded;
 
      if (!_dbus_string_init (&encoded))
        {
          _DBUS_SET_OOM (error);
          return FALSE;
        }
 
      if (!_dbus_uuid_encode (uuid, &encoded) ||
          !_dbus_string_steal_data (&encoded, uuid_p))
        {
          _DBUS_SET_OOM (error);
          _dbus_string_free (&encoded);
          return FALSE;
        }
      _dbus_string_free (&encoded);
    }
  return TRUE;
}
 
dbus_bool_t
_dbus_get_uuid (const char   *filename,
                char        **uuid_p,
                dbus_bool_t   create_if_not_found,
                DBusError    *error)
{
  DBusGUID uuid;
  
  if (filename)
    {
      DBusString filename_str;
      _dbus_string_init_const (&filename_str, filename);
      if (!_dbus_read_uuid_file (&filename_str, &uuid, create_if_not_found, error))
        goto error;
    }
  else
    {
      if (!_dbus_read_local_machine_uuid (&uuid, create_if_not_found, error))
        goto error;
    }
 
  if (!return_uuid(&uuid, uuid_p, error))
    goto error;
 
  return TRUE;
  
 error:
  _DBUS_ASSERT_ERROR_IS_SET (error);
  return FALSE;
}
 
dbus_bool_t
_dbus_create_uuid (char      **uuid_p,
                   DBusError  *error)
{
  DBusGUID uuid;
 
  if (!_dbus_generate_uuid (&uuid, error))
    return FALSE;
 
  return return_uuid (&uuid, uuid_p, error);
}