Emeric Vigier | 2f62582 | 2012-08-06 11:09:52 -0400 | [diff] [blame] | 1 | /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ |
| 2 | /* dbus-launch-win.c dbus-launch utility |
| 3 | * |
| 4 | * Copyright (C) 2007 Ralf Habacker <ralf.habacker@freenet.de> |
| 5 | * |
| 6 | * Licensed under the Academic Free License version 2.1 |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 21 | * |
| 22 | */ |
| 23 | |
| 24 | #include <config.h> |
| 25 | #ifndef UNICODE |
| 26 | #define UNICODE 1 |
| 27 | #endif |
| 28 | #include <windows.h> |
| 29 | #include <stdio.h> |
| 30 | #include <string.h> |
| 31 | #include <assert.h> |
| 32 | |
| 33 | /* Save string functions. Instead of figuring out the exact _MSC_VER |
| 34 | that work, override for everybody. */ |
| 35 | |
| 36 | #define errno_t int |
| 37 | #define wcscat_s my_wcscat_s |
| 38 | #define wcscpy_s my_wcscpy_s |
| 39 | |
| 40 | static errno_t |
| 41 | wcscat_s (wchar_t *dest, size_t size, wchar_t *src) |
| 42 | { |
| 43 | assert (sizeof (wchar_t) * (wcslen (dest) + wcslen (src) + 1) <= size); |
| 44 | wcscat (dest, src); |
| 45 | return 0; |
| 46 | } |
| 47 | |
| 48 | |
| 49 | static errno_t |
| 50 | wcscpy_s (wchar_t *dest, size_t size, wchar_t *src) |
| 51 | { |
| 52 | assert (sizeof (wchar_t) * (wcslen (src) + 1) <= size); |
| 53 | wcscpy (dest, src); |
| 54 | return 0; |
| 55 | } |
| 56 | |
| 57 | /* TODO (tl): This Windows version of dbus-launch is curretly rather |
| 58 | * pointless as it doesn't take the same command-line options as the |
| 59 | * UNIX dbus-launch does. A main point of the dbus-launch command is |
| 60 | * to pass it for instance a --config-file option to make the started |
| 61 | * dbus-daemon use that config file. |
| 62 | * |
| 63 | * This version also doesn't print out any information, which is a |
| 64 | * main point of the UNIX one. It should at least support the |
| 65 | * --sh-syntax option, and maybe also a --cmd-syntax to print out the |
| 66 | * variable settings in cmd.exe syntax? |
| 67 | * |
| 68 | * NOTE (rh): The main task of dbus-launch is (from the man page) to start |
| 69 | * a session bus and this is archieved by the current implemention. |
| 70 | * |
| 71 | * Additional on windows the session bus starting in not integrated |
| 72 | * into the logon process, so there is no need for any --syntax option. |
| 73 | * In fact (at least for kde on windows) the session bus is autostarted |
| 74 | * with the first application requesting a session bus. |
| 75 | * |
| 76 | */ |
| 77 | |
| 78 | #define AUTO_ACTIVATE_CONSOLE_WHEN_VERBOSE_MODE 1 |
| 79 | |
| 80 | #define DIM(x) (sizeof(x) / sizeof(x[0])) |
| 81 | #define WCSTRINGIFY_(x) L ## x |
| 82 | #define WCSTRINGIFY(x) WCSTRINGIFY_(x) |
| 83 | |
| 84 | int |
| 85 | main (int argc, char **argv) |
| 86 | { |
| 87 | wchar_t dbusDaemonPath[MAX_PATH * 2 + 1]; |
| 88 | wchar_t command[MAX_PATH * 2 + 1]; |
| 89 | wchar_t *p; |
| 90 | wchar_t *daemon_name; |
| 91 | int result; |
| 92 | int showConsole = 0; |
| 93 | #ifdef DBUS_WINCE |
| 94 | char *s = NULL; |
| 95 | #else |
| 96 | char *s = getenv("DBUS_VERBOSE"); |
| 97 | #endif |
| 98 | int verbose = s && *s != '\0' ? 1 : 0; |
| 99 | |
| 100 | PROCESS_INFORMATION pi; |
| 101 | STARTUPINFOW si; |
| 102 | BOOL inherit = TRUE; |
| 103 | DWORD flags = 0; |
| 104 | |
| 105 | #ifdef AUTO_ACTIVATE_CONSOLE_WHEN_VERBOSE_MODE |
| 106 | if (verbose) |
| 107 | showConsole = 1; |
| 108 | #endif |
| 109 | GetModuleFileNameW (NULL, dbusDaemonPath, DIM (dbusDaemonPath)); |
| 110 | |
| 111 | daemon_name = WCSTRINGIFY(DBUS_DAEMON_NAME) L".exe"; |
| 112 | |
| 113 | if ((p = wcsrchr (dbusDaemonPath, L'\\'))) |
| 114 | { |
| 115 | p[1] = L'\0'; |
| 116 | wcscat_s (dbusDaemonPath, sizeof (dbusDaemonPath), daemon_name); |
| 117 | } |
| 118 | else |
| 119 | { |
| 120 | if (verbose) |
| 121 | fprintf (stderr, "error: could not extract path from current " |
| 122 | "applications module filename\n"); |
| 123 | return 1; |
| 124 | } |
| 125 | |
| 126 | #ifdef DBUS_WINCE |
| 127 | /* Windows CE has a different interpretation of cmdline: Start with argv[1]. */ |
| 128 | wcscpy_s (command, sizeof (command), L"--session"); |
| 129 | if (verbose) |
| 130 | fprintf (stderr, "%ls %ls\n", dbusDaemonPath, command); |
| 131 | #else |
| 132 | command[0] = L'\0'; |
| 133 | /* Windows CE has a different interpretation of cmdline: Start with argv[1]. */ |
| 134 | wcscpy_s (command, sizeof (command), dbusDaemonPath); |
| 135 | wcscat_s (command, sizeof (command), L" --session"); |
| 136 | if (verbose) |
| 137 | fprintf (stderr, "%ls\n", command); |
| 138 | #endif |
| 139 | |
| 140 | memset (&si, 0, sizeof (si)); |
| 141 | memset (&pi, 0, sizeof (pi)); |
| 142 | si.cb = sizeof (si); |
| 143 | |
| 144 | if (verbose) |
| 145 | flags |= CREATE_NEW_CONSOLE; |
| 146 | |
| 147 | #ifdef DBUS_WINCE |
| 148 | inherit = FALSE; |
| 149 | #else |
| 150 | flags |= NORMAL_PRIORITY_CLASS; |
| 151 | if (!verbose) |
| 152 | flags |= DETACHED_PROCESS; |
| 153 | #endif |
| 154 | |
| 155 | result = CreateProcessW (dbusDaemonPath, command, 0, 0, |
| 156 | inherit, flags, 0, 0, &si, &pi); |
| 157 | |
| 158 | if (result == 0) |
| 159 | { |
| 160 | if (verbose) |
| 161 | fprintf (stderr, "Could not start " DBUS_DAEMON_NAME ". error=%d\n", |
| 162 | GetLastError ()); |
| 163 | return 4; |
| 164 | } |
| 165 | |
| 166 | CloseHandle (pi.hProcess); |
| 167 | CloseHandle (pi.hThread); |
| 168 | |
| 169 | return 0; |
| 170 | } |