bin/winvlc.c

   1 /*****************************************************************************
   2  * winvlc.c: the Windows VLC media player
   3  *****************************************************************************
   4  * Copyright (C) 1998-2011 the VideoLAN team
   5  *
   6  * Authors: Vincent Seguin <seguin@via.ecp.fr>
   7  *          Samuel Hocevar <sam@zoy.org>
   8  *          Gildas Bazin <gbazin@videolan.org>
   9  *          Derk-Jan Hartman <hartman at videolan dot org>
  10  *          Lots of other people, see the libvlc AUTHORS file
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  25  *****************************************************************************/
  26
  27 #ifdef HAVE_CONFIG_H
  28 # include "config.h"
  29 #endif
  30
  31 #ifndef UNICODE
  32 #define UNICODE
  33 #endif
  34
  35 #include <vlc/vlc.h>
  36 #include <windows.h>
  37 #include <shellapi.h>
  38
  39 #ifndef _WIN32_IE
  40 #  define  _WIN32_IE 0x501
  41 #endif
  42 #include <fcntl.h>
  43 #include <io.h>
  44 #include <shlobj.h>
  45 #define HeapEnableTerminationOnCorruption (HEAP_INFORMATION_CLASS)1
  46
  47 #ifdef HAVE_BREAKPAD
  48 void CheckCrashDump( const wchar_t* crashdump_path );
  49 void* InstallCrashHandler( const wchar_t* crashdump_path );
  50 void ReleaseCrashHandler( void* handler );
  51 #endif
  52
  53 static char *FromWide (const wchar_t *wide)
  54 {
  55     size_t len;
  56     len = WideCharToMultiByte (CP_UTF8, 0, wide, -1, NULL, 0, NULL, NULL);
  57
  58     char *out = (char *)malloc (len);
  59     if (out)
  60         WideCharToMultiByte (CP_UTF8, 0, wide, -1, out, len, NULL, NULL);
  61     return out;
  62 }
  63
  64 #if (_WIN32_WINNT < _WIN32_WINNT_WIN8)
  65 static BOOL SetDefaultDllDirectories_(DWORD flags)
  66 {
  67     HMODULE h = GetModuleHandle(TEXT("kernel32.dll"));
  68     if (h == NULL)
  69         return FALSE;
  70
  71     BOOL (WINAPI * SetDefaultDllDirectoriesReal)(DWORD);
  72
  73     SetDefaultDllDirectoriesReal = (BOOL (WINAPI *)(DWORD))
  74                                     GetProcAddress(h, "SetDefaultDllDirectories");
  75     if (SetDefaultDllDirectoriesReal == NULL)
  76         return FALSE;
  77
  78     return SetDefaultDllDirectoriesReal(flags);
  79 }
  80 # define SetDefaultDllDirectories SetDefaultDllDirectories_
  81
  82 #endif
  83
  84 static void PrioritizeSystem32(void)
  85 {
  86 #ifndef HAVE_PROCESS_MITIGATION_IMAGE_LOAD_POLICY
  87     typedef struct _PROCESS_MITIGATION_IMAGE_LOAD_POLICY {
  88       union {
  89         DWORD  Flags;
  90         struct {
  91           DWORD NoRemoteImages  :1;
  92           DWORD NoLowMandatoryLabelImages  :1;
  93           DWORD PreferSystem32Images  :1;
  94           DWORD ReservedFlags  :29;
  95         };
  96       };
  97     } PROCESS_MITIGATION_IMAGE_LOAD_POLICY;
  98 #endif
  99 #if _WIN32_WINNT < _WIN32_WINNT_WIN8
 100     BOOL WINAPI (*SetProcessMitigationPolicy)(PROCESS_MITIGATION_POLICY, PVOID, SIZE_T);
 101     HINSTANCE h_Kernel32 = GetModuleHandle(TEXT("kernel32.dll"));
 102     if ( !h_Kernel32 )
 103         return;
 104     SetProcessMitigationPolicy = (BOOL (WINAPI *)(PROCESS_MITIGATION_POLICY, PVOID, SIZE_T))
 105                                    GetProcAddress(h_Kernel32, "SetProcessMitigationPolicy");
 106     if (SetProcessMitigationPolicy == NULL)
 107         return;
 108 #endif
 109     PROCESS_MITIGATION_IMAGE_LOAD_POLICY m = { .Flags = 0 };
 110     m.PreferSystem32Images = 1;
 111     SetProcessMitigationPolicy( 10 /* ProcessImageLoadPolicy */, &m, sizeof( m ) );
 112 }
 113
 114 static void vlc_kill(void *data)
 115 {
 116     HANDLE *semp = data;
 117
 118     ReleaseSemaphore(*semp, 1, NULL);
 119 }
 120
 121 int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
 122                     LPSTR lpCmdLine,
 123                     int nCmdShow )
 124 {
 125     int argc;
 126
 127     /* VLC does not change the thread locale, so gettext/libintil will use the
 128      * user default locale as reference. */
 129     /* gettext versions 0.18-0.18.1 will use the Windows Vista locale name
 130      * if the GETTEXT_MUI environment variable is set. If not set or if running
 131      * on Windows 2000/XP/2003 an hard-coded language ID list is used. This
 132      * putenv() call may become redundant with later versions of gettext. */
 133     putenv("GETTEXT_MUI=1");
 134 #ifdef TOP_BUILDDIR
 135     putenv("VLC_PLUGIN_PATH=Z:"TOP_BUILDDIR"/modules");
 136     putenv("VLC_DATA_PATH=Z:"TOP_SRCDIR"/share");
 137 #endif
 138
 139 #ifndef NDEBUG
 140     /* Disable stderr buffering. Indeed, stderr can be buffered on Windows (if
 141      * connected to a pipe). */
 142     setvbuf (stderr, NULL, _IONBF, BUFSIZ);
 143 #endif
 144
 145     HeapSetInformation(NULL, HeapEnableTerminationOnCorruption, NULL, 0);
 146
 147     /* SetProcessDEPPolicy, SetDllDirectory, & Co. */
 148     HINSTANCE h_Kernel32 = GetModuleHandle(TEXT("kernel32.dll"));
 149     if (h_Kernel32 != NULL)
 150     {
 151         /* Enable DEP */
 152 #ifndef PROCESS_DEP_ENABLE
 153 # define PROCESS_DEP_ENABLE 1
 154 #endif /* PROCESS_DEP_ENABLE */
 155         BOOL (WINAPI * mySetProcessDEPPolicy)( DWORD dwFlags);
 156         mySetProcessDEPPolicy = (BOOL (WINAPI *)(DWORD))
 157                             GetProcAddress(h_Kernel32, "SetProcessDEPPolicy");
 158         if(mySetProcessDEPPolicy)
 159             mySetProcessDEPPolicy(PROCESS_DEP_ENABLE);
 160
 161     }
 162
 163     /* Do NOT load any library from cwd. */
 164     SetDllDirectory(TEXT(""));
 165
 166     /***
 167      * The LoadLibrary* calls from the modules and the 3rd party code
 168      * will search in SYSTEM32 only
 169      * */
 170     SetDefaultDllDirectories(LOAD_LIBRARY_SEARCH_SYSTEM32);
 171     /***
 172      * Load DLLs from system32 before any other folder (when possible)
 173      */
 174     PrioritizeSystem32();
 175
 176     /* Args */
 177     wchar_t **wargv = CommandLineToArgvW (GetCommandLine (), &argc);
 178     if (wargv == NULL)
 179         return 1;
 180
 181     char *argv[argc + 3];
 182     BOOL crash_handling = TRUE;
 183     int j = 0;
 184     char *lang = NULL;
 185
 186     argv[j++] = FromWide( L"--media-library" );
 187     argv[j++] = FromWide( L"--no-ignore-config" );
 188     for (int i = 1; i < argc; i++)
 189     {
 190         if(!wcscmp(wargv[i], L"--no-crashdump"))
 191         {
 192             crash_handling = FALSE;
 193             continue; /* don't give argument to libvlc */
 194         }
 195         if (!wcsncmp(wargv[i], L"--language", 10) )
 196         {
 197             if (i < argc - 1 && wcsncmp( wargv[i + 1], L"--", 2 ))
 198                 lang = FromWide (wargv[++i]);
 199             continue;
 200         }
 201
 202         argv[j++] = FromWide (wargv[i]);
 203     }
 204
 205     argc = j;
 206     argv[argc] = NULL;
 207     LocalFree (wargv);
 208
 209 #ifdef HAVE_BREAKPAD
 210     void* eh = NULL;
 211     if(crash_handling)
 212     {
 213         static wchar_t path[MAX_PATH];
 214         if( S_OK != SHGetFolderPathW( NULL, CSIDL_APPDATA | CSIDL_FLAG_CREATE,
 215                     NULL, SHGFP_TYPE_CURRENT, path ) )
 216             fprintf( stderr, "Can't open the vlc conf PATH\n" );
 217         _snwprintf( path+wcslen( path ), MAX_PATH,  L"%s", L"\\vlc\\crashdump" );
 218         CheckCrashDump( &path[0] );
 219         eh = InstallCrashHandler( &path[0] );
 220     }
 221 #else
 222     (void)crash_handling;
 223 #endif
 224
 225     _setmode( _fileno( stdin ), _O_BINARY ); /* Needed for pipes */
 226
 227     /* */
 228     if (!lang)
 229     {
 230         HKEY h_key;
 231         if( RegOpenKeyEx( HKEY_CURRENT_USER, TEXT("Software\\VideoLAN\\VLC\\"), 0, KEY_READ, &h_key )
 232                 == ERROR_SUCCESS )
 233         {
 234             WCHAR szData[256];
 235             DWORD len = 256;
 236             if( RegQueryValueEx( h_key, TEXT("Lang"), NULL, NULL, (LPBYTE) &szData, &len ) == ERROR_SUCCESS )
 237                 lang = FromWide( szData );
 238         }
 239     }
 240
 241     if (lang && strncmp( lang, "auto", 4 ) )
 242     {
 243         char tmp[11];
 244         snprintf(tmp, 11, "LANG=%s", lang);
 245         putenv(tmp);
 246     }
 247     free(lang);
 248
 249     /* Initialize libvlc */
 250     libvlc_instance_t *vlc;
 251     vlc = libvlc_new (argc, (const char **)argv);
 252     if (vlc != NULL)
 253     {
 254         HANDLE sem = CreateSemaphore(NULL, 0, 1, NULL);
 255
 256         libvlc_set_exit_handler(vlc, vlc_kill, &sem);
 257         libvlc_set_app_id (vlc, "org.VideoLAN.VLC", PACKAGE_VERSION,
 258                            PACKAGE_NAME);
 259         libvlc_set_user_agent (vlc, "VLC media player", "VLC/"PACKAGE_VERSION);
 260         libvlc_add_intf (vlc, "globalhotkeys,none");
 261         libvlc_add_intf (vlc, NULL);
 262         libvlc_playlist_play (vlc);
 263
 264         WaitForSingleObject(sem, INFINITE);
 265         CloseHandle(sem);
 266
 267         libvlc_release (vlc);
 268     }
 269     else
 270         MessageBox (NULL, TEXT("VLC media player could not start.\n"
 271                     "Either the command line options were invalid or no plugins were found.\n"),
 272                     TEXT("VLC media player"),
 273                     MB_OK|MB_ICONERROR);
 274
 275
 276 #ifdef HAVE_BREAKPAD
 277     ReleaseCrashHandler( eh );
 278 #endif
 279     for (int i = 0; i < argc; i++)
 280         free (argv[i]);
 281
 282     (void)hInstance; (void)hPrevInstance; (void)lpCmdLine; (void)nCmdShow;
 283     return 0;
 284 }