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