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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* dbus-launch-win.c dbus-launch utility
*
* Copyright (C) 2007 Ralf Habacker <ralf.habacker@freenet.de>
*
* 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>
#ifndef UNICODE
#define UNICODE 1
#endif
#include <windows.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
/* Save string functions. Instead of figuring out the exact _MSC_VER
that work, override for everybody. */
#define errno_t int
#define wcscat_s my_wcscat_s
#define wcscpy_s my_wcscpy_s
static errno_t
wcscat_s (wchar_t *dest, size_t size, const wchar_t *src)
{
assert (sizeof (wchar_t) * (wcslen (dest) + wcslen (src) + 1) <= size);
wcscat (dest, src);
return 0;
}
static errno_t
wcscpy_s (wchar_t *dest, size_t size, const wchar_t *src)
{
assert (sizeof (wchar_t) * (wcslen (src) + 1) <= size);
wcscpy (dest, src);
return 0;
}
/* TODO (tl): This Windows version of dbus-launch is curretly rather
* pointless as it doesn't take the same command-line options as the
* UNIX dbus-launch does. A main point of the dbus-launch command is
* to pass it for instance a --config-file option to make the started
* dbus-daemon use that config file.
*
* This version also doesn't print out any information, which is a
* main point of the UNIX one. It should at least support the
* --sh-syntax option, and maybe also a --cmd-syntax to print out the
* variable settings in cmd.exe syntax?
*
* NOTE (rh): The main task of dbus-launch is (from the man page) to start
* a session bus and this is archieved by the current implemention.
*
* Additional on windows the session bus starting in not integrated
* into the logon process, so there is no need for any --syntax option.
* In fact (at least for kde on windows) the session bus is autostarted
* with the first application requesting a session bus.
*
*/
#define AUTO_ACTIVATE_CONSOLE_WHEN_VERBOSE_MODE 1
#define DIM(x) (sizeof(x) / sizeof(x[0]))
#define WCSTRINGIFY_(x) L ## x
#define WCSTRINGIFY(x) WCSTRINGIFY_(x)
int
main (int argc, char **argv)
{
wchar_t dbusDaemonPath[MAX_PATH * 2 + 1];
wchar_t command[MAX_PATH * 2 + 1];
wchar_t *p;
const wchar_t *daemon_name;
int result;
#ifdef DBUS_WINCE
char *s = NULL;
#else
char *s = getenv("DBUS_VERBOSE");
#endif
int verbose = s && *s != '\0' ? 1 : 0;
PROCESS_INFORMATION pi;
STARTUPINFOW si;
BOOL inherit = TRUE;
DWORD flags = 0;
GetModuleFileNameW (NULL, dbusDaemonPath, DIM (dbusDaemonPath));
daemon_name = WCSTRINGIFY(DBUS_DAEMON_NAME) L".exe";
if ((p = wcsrchr (dbusDaemonPath, L'\\')))
{
p[1] = L'\0';
wcscat_s (dbusDaemonPath, sizeof (dbusDaemonPath), daemon_name);
}
else
{
if (verbose)
fprintf (stderr, "error: could not extract path from current "
"applications module filename\n");
return 1;
}
#ifdef DBUS_WINCE
/* Windows CE has a different interpretation of cmdline: Start with argv[1]. */
wcscpy_s (command, sizeof (command), L"--session");
if (verbose)
fprintf (stderr, "%ls %ls\n", dbusDaemonPath, command);
#else
command[0] = L'\0';
/* Windows cmdline starts with path, which can contain spaces. */
wcscpy_s (command, sizeof (command), L"\"");
wcscat_s (command, sizeof (command), dbusDaemonPath);
wcscat_s (command, sizeof (command), L"\" --session");
if (verbose)
fprintf (stderr, "%ls\n", command);
#endif
memset (&si, 0, sizeof (si));
memset (&pi, 0, sizeof (pi));
si.cb = sizeof (si);
if (verbose)
flags |= CREATE_NEW_CONSOLE;
#ifdef DBUS_WINCE
inherit = FALSE;
#else
flags |= NORMAL_PRIORITY_CLASS;
if (!verbose)
flags |= DETACHED_PROCESS;
#endif
result = CreateProcessW (dbusDaemonPath, command, 0, 0,
inherit, flags, 0, 0, &si, &pi);
if (result == 0)
{
if (verbose)
fprintf (stderr, "Could not start " DBUS_DAEMON_NAME ". error=%u\n",
(unsigned)GetLastError ());
return 4;
}
CloseHandle (pi.hProcess);
CloseHandle (pi.hThread);
return 0;
}
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