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 #include <wininet.h>
  46 #define PSAPI_VERSION 1
  47 #include <psapi.h>
  48 #define HeapEnableTerminationOnCorruption (HEAP_INFORMATION_CLASS)1
  49 static void check_crashdump(void);
  50 LONG WINAPI vlc_exception_filter(struct _EXCEPTION_POINTERS *lpExceptionInfo);
  51 static const wchar_t *crashdump_path;
  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 = GetProcAddress(h,
  74                                                   "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 int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
 115                     LPSTR lpCmdLine,
 116                     int nCmdShow )
 117 {
 118     int argc;
 119
 120     /* VLC does not change the thread locale, so gettext/libintil will use the
 121      * user default locale as reference. */
 122     /* gettext versions 0.18-0.18.1 will use the Windows Vista locale name
 123      * if the GETTEXT_MUI environment variable is set. If not set or if running
 124      * on Windows 2000/XP/2003 an hard-coded language ID list is used. This
 125      * putenv() call may become redundant with later versions of gettext. */
 126     putenv("GETTEXT_MUI=1");
 127 #ifdef TOP_BUILDDIR
 128     putenv("VLC_PLUGIN_PATH=Z:"TOP_BUILDDIR"/modules");
 129     putenv("VLC_DATA_PATH=Z:"TOP_SRCDIR"/share");
 130 #endif
 131
 132 #if (_WIN32_WINNT < _WIN32_WINNT_WIN7)
 133     SetErrorMode(SEM_FAILCRITICALERRORS);
 134 #endif
 135     HeapSetInformation(NULL, HeapEnableTerminationOnCorruption, NULL, 0);
 136
 137     /* SetProcessDEPPolicy, SetDllDirectory, & Co. */
 138     HINSTANCE h_Kernel32 = GetModuleHandle(TEXT("kernel32.dll"));
 139     if (h_Kernel32 != NULL)
 140     {
 141         /* Enable DEP */
 142 # define PROCESS_DEP_ENABLE 1
 143         BOOL (WINAPI * mySetProcessDEPPolicy)( DWORD dwFlags);
 144         mySetProcessDEPPolicy = (BOOL (WINAPI *)(DWORD))
 145                             GetProcAddress(h_Kernel32, "SetProcessDEPPolicy");
 146         if(mySetProcessDEPPolicy)
 147             mySetProcessDEPPolicy(PROCESS_DEP_ENABLE);
 148
 149         /* Do NOT load any library from cwd. */
 150         BOOL (WINAPI * mySetDllDirectoryA)(const char* lpPathName);
 151         mySetDllDirectoryA = (BOOL (WINAPI *)(const char*))
 152                             GetProcAddress(h_Kernel32, "SetDllDirectoryA");
 153         if(mySetDllDirectoryA)
 154             mySetDllDirectoryA("");
 155     }
 156
 157     /***
 158      * The LoadLibrary* calls from the modules and the 3rd party code
 159      * will search in SYSTEM32 only
 160      * */
 161     SetDefaultDllDirectories(LOAD_LIBRARY_SEARCH_SYSTEM32);
 162     /***
 163      * Load DLLs from system32 before any other folder (when possible)
 164      */
 165     PrioritizeSystem32();
 166
 167     /* Args */
 168     wchar_t **wargv = CommandLineToArgvW (GetCommandLine (), &argc);
 169     if (wargv == NULL)
 170         return 1;
 171
 172     char *argv[argc + 3];
 173     BOOL crash_handling = TRUE;
 174     int j = 0;
 175     char *lang = NULL;
 176
 177     argv[j++] = FromWide( L"--media-library" );
 178     argv[j++] = FromWide( L"--no-ignore-config" );
 179     for (int i = 1; i < argc; i++)
 180     {
 181         if(!wcscmp(wargv[i], L"--no-crashdump"))
 182         {
 183             crash_handling = FALSE;
 184             continue; /* don't give argument to libvlc */
 185         }
 186         if (!wcsncmp(wargv[i], L"--language", 10) )
 187         {
 188             if (i < argc - 1 && wcsncmp( wargv[i + 1], L"--", 2 ))
 189                 lang = FromWide (wargv[++i]);
 190             continue;
 191         }
 192
 193         argv[j++] = FromWide (wargv[i]);
 194     }
 195
 196     argc = j;
 197     argv[argc] = NULL;
 198     LocalFree (wargv);
 199
 200     if(crash_handling)
 201     {
 202         static wchar_t path[MAX_PATH];
 203         if( S_OK != SHGetFolderPathW( NULL, CSIDL_APPDATA | CSIDL_FLAG_CREATE,
 204                     NULL, SHGFP_TYPE_CURRENT, path ) )
 205             fprintf( stderr, "Can't open the vlc conf PATH\n" );
 206         _snwprintf( path+wcslen( path ), MAX_PATH,  L"%s", L"\\vlc\\crashdump" );
 207         crashdump_path = &path[0];
 208
 209         check_crashdump();
 210         SetUnhandledExceptionFilter(vlc_exception_filter);
 211     }
 212
 213     _setmode( _fileno( stdin ), _O_BINARY ); /* Needed for pipes */
 214
 215     /* */
 216     if (!lang)
 217     {
 218         HKEY h_key;
 219         if( RegOpenKeyEx( HKEY_CURRENT_USER, TEXT("Software\\VideoLAN\\VLC\\"), 0, KEY_READ, &h_key )
 220                 == ERROR_SUCCESS )
 221         {
 222             TCHAR szData[256];
 223             DWORD len = 256;
 224             if( RegQueryValueEx( h_key, TEXT("Lang"), NULL, NULL, (LPBYTE) &szData, &len ) == ERROR_SUCCESS )
 225                 lang = FromWide( szData );
 226         }
 227     }
 228
 229     if (lang && strncmp( lang, "auto", 4 ) )
 230     {
 231         char tmp[11];
 232         snprintf(tmp, 11, "LANG=%s", lang);
 233         putenv(tmp);
 234     }
 235     free(lang);
 236
 237     /* Initialize libvlc */
 238     libvlc_instance_t *vlc;
 239     vlc = libvlc_new (argc, (const char **)argv);
 240     if (vlc != NULL)
 241     {
 242         libvlc_set_app_id (vlc, "org.VideoLAN.VLC", PACKAGE_VERSION,
 243                            PACKAGE_NAME);
 244         libvlc_set_user_agent (vlc, "VLC media player", "VLC/"PACKAGE_VERSION);
 245         libvlc_add_intf (vlc, "hotkeys,none");
 246         libvlc_add_intf (vlc, "globalhotkeys,none");
 247         libvlc_add_intf (vlc, NULL);
 248         libvlc_playlist_play (vlc, -1, 0, NULL);
 249         libvlc_wait (vlc);
 250         libvlc_release (vlc);
 251     }
 252     else
 253         MessageBox (NULL, TEXT("VLC media player could not start.\n"
 254                     "Either the command line options were invalid or no plugins were found.\n"),
 255                     TEXT("VLC media player"),
 256                     MB_OK|MB_ICONERROR);
 257
 258
 259     for (int i = 0; i < argc; i++)
 260         free (argv[i]);
 261
 262     (void)hInstance; (void)hPrevInstance; (void)lpCmdLine; (void)nCmdShow;
 263     return 0;
 264 }
 265
 266 /* Crashdumps handling */
 267 static void check_crashdump(void)
 268 {
 269     wchar_t mv_crashdump_path[MAX_PATH];
 270     wcscpy (mv_crashdump_path, crashdump_path);
 271     wcscat (mv_crashdump_path, L".mv");
 272
 273     if (_wrename (crashdump_path, mv_crashdump_path))
 274         return;
 275
 276     FILE * fd = _wfopen ( mv_crashdump_path, L"r, ccs=UTF-8" );
 277     if( !fd )
 278         return;
 279     fclose( fd );
 280
 281     int answer = MessageBox( NULL, L"Ooops: VLC media player just crashed.\n" \
 282     "Would you like to send a bug report to the developers team?",
 283     L"VLC crash reporting", MB_YESNO);
 284
 285     if(answer == IDYES)
 286     {
 287         HMODULE hWininet = LoadLibrary(TEXT("wininet.dll"));
 288         if (hWininet == NULL)
 289         {
 290             fprintf(stderr, "There was an error loading the network"
 291                     " 0x%08lx\n", (unsigned long)GetLastError());
 292             goto done;
 293         }
 294
 295         HINTERNET (WINAPI *InternetOpenW_)(LPCWSTR ,DWORD dwAccessType,LPCWSTR lpszProxy,LPCWSTR lpszProxyBypass,DWORD dwFlags);
 296         HINTERNET (WINAPI *InternetConnectW_)(HINTERNET hInternet,LPCWSTR lpszServerName,INTERNET_PORT nServerPort,LPCWSTR lpszUserName,LPCWSTR lpszPassword,DWORD dwService,DWORD dwFlags,DWORD_PTR dwContext);
 297         BOOL (WINAPI *InternetCloseHandle_)(HINTERNET hInternet);
 298         BOOL (WINAPI *FtpPutFileW_)(HINTERNET hConnect,LPCWSTR lpszLocalFile,LPCWSTR lpszNewRemoteFile,DWORD dwFlags,DWORD_PTR dwContext);
 299         InternetOpenW_       = (void*)GetProcAddress(hWininet, "InternetOpenW");
 300         InternetConnectW_    = (void*)GetProcAddress(hWininet, "InternetConnectW");
 301         InternetCloseHandle_ = (void*)GetProcAddress(hWininet, "InternetCloseHandle");
 302         FtpPutFileW_         = (void*)GetProcAddress(hWininet, "FtpPutFileW");
 303         if (!InternetOpenW_ || !InternetConnectW_ || !InternetCloseHandle_ || !FtpPutFileW_)
 304         {
 305             fprintf(stderr, "There was an error loading the network API entries"
 306                     " 0x%08lx\n", (unsigned long)GetLastError());
 307             goto done;
 308         }
 309
 310         HINTERNET Hint = InternetOpenW_(L"VLC Crash Reporter",
 311                 INTERNET_OPEN_TYPE_PRECONFIG, NULL,NULL,0);
 312         if(Hint)
 313         {
 314             HINTERNET ftp = InternetConnectW_(Hint, L"crash.videolan.org",
 315                         INTERNET_DEFAULT_FTP_PORT, NULL, NULL,
 316                         INTERNET_SERVICE_FTP, INTERNET_FLAG_PASSIVE, 0);
 317             if(ftp)
 318             {
 319                 SYSTEMTIME now;
 320                 GetSystemTime(&now);
 321                 wchar_t remote_file[MAX_PATH];
 322                 _snwprintf(remote_file, MAX_PATH,
 323                         L"/crashes-win32/%04d%02d%02d%02d%02d%02d",
 324                         now.wYear, now.wMonth, now.wDay, now.wHour,
 325                         now.wMinute, now.wSecond );
 326
 327                 if( FtpPutFileW_( ftp, mv_crashdump_path, remote_file,
 328                             FTP_TRANSFER_TYPE_BINARY, 0) )
 329                     fprintf(stderr, "Report sent correctly to FTP.\n");
 330                 else
 331                     fprintf(stderr,"Couldn't send report to FTP server\n");
 332
 333                 InternetCloseHandle_(ftp);
 334             }
 335             else
 336             {
 337                 fprintf(stderr, "Can't connect to FTP server 0x%08lx\n",
 338                         (unsigned long)GetLastError());
 339             }
 340             InternetCloseHandle_(Hint);
 341         }
 342         else
 343         {
 344               fprintf(stderr, "There was an error while connecting to the "
 345                       "Internet  0x%08lx\n", (unsigned long)GetLastError());
 346         }
 347 done:
 348         if (hWininet != NULL)
 349             FreeLibrary(hWininet);
 350         MessageBox( NULL, L"Thanks a lot for helping improving VLC!",
 351                     L"VLC crash report" , MB_OK);
 352     }
 353
 354     _wremove(mv_crashdump_path);
 355 }
 356
 357 /*****************************************************************************
 358  * vlc_exception_filter: handles unhandled exceptions, like segfaults
 359  *****************************************************************************/
 360 LONG WINAPI vlc_exception_filter(struct _EXCEPTION_POINTERS *lpExceptionInfo)
 361 {
 362     if(IsDebuggerPresent())
 363     {
 364         //If a debugger is present, pass the exception to the debugger
 365         //with EXCEPTION_CONTINUE_SEARCH
 366         return EXCEPTION_CONTINUE_SEARCH;
 367     }
 368     else
 369     {
 370         fprintf( stderr, "unhandled vlc exception\n" );
 371
 372         FILE * fd = _wfopen ( crashdump_path, L"w, ccs=UTF-8" );
 373
 374         if( !fd )
 375         {
 376             fprintf( stderr, "\nerror while opening file" );
 377             exit( 1 );
 378         }
 379
 380         OSVERSIONINFO osvi;
 381         ZeroMemory( &osvi, sizeof(OSVERSIONINFO) );
 382         osvi.dwOSVersionInfoSize = sizeof( OSVERSIONINFO );
 383         GetVersionEx( &osvi );
 384
 385         fwprintf( fd, L"[version]\nOS=%d.%d.%d.%d.%ls\nVLC=" VERSION_MESSAGE,
 386                 osvi.dwMajorVersion, osvi.dwMinorVersion, osvi.dwBuildNumber,
 387                 osvi.dwPlatformId, osvi.szCSDVersion);
 388
 389         const CONTEXT *const pContext = (const CONTEXT *)
 390             lpExceptionInfo->ContextRecord;
 391         const EXCEPTION_RECORD *const pException = (const EXCEPTION_RECORD *)
 392             lpExceptionInfo->ExceptionRecord;
 393         /* No nested exceptions for now */
 394         fwprintf( fd, L"\n\n[exceptions]\n%08x at %px",
 395                 pException->ExceptionCode, pException->ExceptionAddress );
 396
 397         for( unsigned int i = 0; i < pException->NumberParameters; i++ )
 398             fwprintf( fd, L" | %p", pException->ExceptionInformation[i] );
 399
 400 #ifdef _WIN64
 401         fwprintf( fd, L"\n\n[context]\nRDI:%px\nRSI:%px\n" \
 402                     "RBX:%px\nRDX:%px\nRCX:%px\nRAX:%px\n" \
 403                     "RBP:%px\nRIP:%px\nRSP:%px\nR8:%px\n" \
 404                     "R9:%px\nR10:%px\nR11:%px\nR12:%px\n" \
 405                     "R13:%px\nR14:%px\nR15:%px\n",
 406                         pContext->Rdi,pContext->Rsi,pContext->Rbx,
 407                         pContext->Rdx,pContext->Rcx,pContext->Rax,
 408                         pContext->Rbp,pContext->Rip,pContext->Rsp,
 409                         pContext->R8,pContext->R9,pContext->R10,
 410                         pContext->R11,pContext->R12,pContext->R13,
 411                         pContext->R14,pContext->R15 );
 412 #else
 413         fwprintf( fd, L"\n\n[context]\nEDI:%px\nESI:%px\n" \
 414                     "EBX:%px\nEDX:%px\nECX:%px\nEAX:%px\n" \
 415                     "EBP:%px\nEIP:%px\nESP:%px\n",
 416                         pContext->Edi,pContext->Esi,pContext->Ebx,
 417                         pContext->Edx,pContext->Ecx,pContext->Eax,
 418                         pContext->Ebp,pContext->Eip,pContext->Esp );
 419 #endif
 420
 421         fwprintf( fd, L"\n[stacktrace]\n#EIP|base|module\n" );
 422
 423 #ifdef _WIN64
 424         LPCVOID caller = (LPCVOID)pContext->Rip;
 425         LPVOID *pBase  = (LPVOID*)pContext->Rbp;
 426 #else
 427         LPVOID *pBase  = (LPVOID*)pContext->Ebp;
 428         LPCVOID caller = (LPCVOID)pContext->Eip;
 429 #endif
 430         for( unsigned frame = 0; frame <= 100; frame++ )
 431         {
 432             MEMORY_BASIC_INFORMATION mbi;
 433             wchar_t module[ 256 ];
 434             VirtualQuery( caller, &mbi, sizeof( mbi ) ) ;
 435             GetModuleFileName( mbi.AllocationBase, module, 256 );
 436             fwprintf( fd, L"%p|%ls\n", caller, module );
 437
 438             if( IsBadReadPtr( pBase, 2 * sizeof( void* ) ) )
 439                 break;
 440
 441             /*The last BP points to NULL!*/
 442             caller = *(pBase + 1);
 443             if( !caller )
 444                 break;
 445             pBase = *pBase;
 446             if( !pBase )
 447                 break;
 448         }
 449
 450         HANDLE hpid = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ,
 451                                         FALSE, GetCurrentProcessId());
 452         if (hpid) {
 453             HMODULE mods[1024];
 454             DWORD size;
 455             if (EnumProcessModules(hpid, mods, sizeof(mods), &size)) {
 456                 fwprintf( fd, L"\n\n[modules]\n" );
 457                 for (unsigned int i = 0; i < size / sizeof(HMODULE); i++) {
 458                     wchar_t module[ 256 ];
 459                     GetModuleFileName(mods[i], module, 256);
 460                     fwprintf( fd, L"%p|%ls\n", mods[i], module);
 461                 }
 462             }
 463             CloseHandle(hpid);
 464         }
 465
 466         fclose( fd );
 467         fflush( stderr );
 468         exit( 1 );
 469     }
 470 }