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 #define UNICODE
  32 #include <vlc/vlc.h>
  33 #include <windows.h>
  34
  35 #if !defined(UNDER_CE)
  36 # ifndef _WIN32_IE
  37 #   define  _WIN32_IE 0x501
  38 # endif
  39 # include <shlobj.h>
  40 # include <wininet.h>
  41 # define PSAPI_VERSION 1
  42 # include <psapi.h>
  43 # define HeapEnableTerminationOnCorruption (HEAP_INFORMATION_CLASS)1
  44 static void check_crashdump(void);
  45 LONG WINAPI vlc_exception_filter(struct _EXCEPTION_POINTERS *lpExceptionInfo);
  46 static const wchar_t *crashdump_path;
  47 #endif
  48
  49 #ifndef UNDER_CE
  50 static char *FromWide (const wchar_t *wide)
  51 {
  52     size_t len;
  53     len = WideCharToMultiByte (CP_UTF8, 0, wide, -1, NULL, 0, NULL, NULL);
  54
  55     char *out = (char *)malloc (len);
  56     if (out)
  57         WideCharToMultiByte (CP_UTF8, 0, wide, -1, out, len, NULL, NULL);
  58     return out;
  59 }
  60 #else
  61 static int parse_cmdline (char *line, char ***argvp)
  62 {
  63     char **argv = malloc (sizeof (char *));
  64     int argc = 0;
  65
  66     while (*line != '\0')
  67     {
  68         char quote = 0;
  69
  70         /* Skips white spaces */
  71         while (strchr ("\t ", *line))
  72             line++;
  73         if (!*line)
  74             break;
  75
  76         /* Starts a new parameter */
  77         argv = realloc (argv, (argc + 2) * sizeof (char *));
  78         if (*line == '"')
  79         {
  80             quote = '"';
  81             line++;
  82         }
  83         argv[argc++] = line;
  84
  85     more:
  86             while (*line && !strchr ("\t ", *line))
  87             line++;
  88
  89     if (line > argv[argc - 1] && line[-1] == quote)
  90         /* End of quoted parameter */
  91         line[-1] = 0;
  92     else
  93         if (*line && quote)
  94     {
  95         /* Space within a quote */
  96         line++;
  97         goto more;
  98     }
  99     else
 100         /* End of unquoted parameter */
 101         if (*line)
 102             *line++ = 0;
 103     }
 104     argv[argc] = NULL;
 105     *argvp = argv;
 106     return argc;
 107 }
 108 #endif
 109
 110 int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
 111 #ifndef UNDER_CE
 112                     LPSTR lpCmdLine,
 113 #else
 114                     LPWSTR lpCmdLine,
 115 #endif
 116                     int nCmdShow )
 117 {
 118     int argc;
 119
 120 #ifndef UNDER_CE
 121 #ifdef TOP_BUILDDIR
 122     putenv("VLC_PLUGIN_PATH=Z:"TOP_BUILDDIR"/modules");
 123 #endif
 124
 125     HeapSetInformation(NULL, HeapEnableTerminationOnCorruption, NULL, 0);
 126
 127     /* SetProcessDEPPolicy */
 128     HINSTANCE h_Kernel32 = LoadLibraryW(L"kernel32.dll");
 129     if(h_Kernel32)
 130     {
 131         BOOL (WINAPI * mySetProcessDEPPolicy)( DWORD dwFlags);
 132         BOOL (WINAPI * mySetDllDirectoryA)(const char* lpPathName);
 133 # define PROCESS_DEP_ENABLE 1
 134
 135         mySetProcessDEPPolicy = (BOOL WINAPI (*)(DWORD))
 136                             GetProcAddress(h_Kernel32, "SetProcessDEPPolicy");
 137         if(mySetProcessDEPPolicy)
 138             mySetProcessDEPPolicy(PROCESS_DEP_ENABLE);
 139
 140         /* Do NOT load any library from cwd. */
 141         mySetDllDirectoryA = (BOOL WINAPI (*)(const char*)) GetProcAddress(h_Kernel32, "SetDllDirectoryA");
 142         if(mySetDllDirectoryA)
 143             mySetDllDirectoryA("");
 144
 145         FreeLibrary(h_Kernel32);
 146     }
 147
 148     /* Args */
 149     wchar_t **wargv = CommandLineToArgvW (GetCommandLine (), &argc);
 150     if (wargv == NULL)
 151         return 1;
 152
 153     char *argv[argc + 3];
 154     BOOL crash_handling = TRUE;
 155     int j = 0;
 156
 157     argv[j++] = FromWide( L"--media-library" );
 158     argv[j++] = FromWide( L"--no-ignore-config" );
 159 #ifdef TOP_SRCDIR
 160     argv[j++] = FromWide (L"--data-path=Z:"TOP_SRCDIR"/share");
 161 #endif
 162     for (int i = 1; i < argc; i++)
 163     {
 164         if(!wcscmp(wargv[i], L"--no-crashdump"))
 165         {
 166             crash_handling = FALSE;
 167             continue; /* don't give argument to libvlc */
 168         }
 169
 170         argv[j++] = FromWide (wargv[i]);
 171     }
 172
 173     argc = j;
 174     argv[argc] = NULL;
 175     LocalFree (wargv);
 176
 177     if(crash_handling)
 178     {
 179         static wchar_t path[MAX_PATH];
 180         if( S_OK != SHGetFolderPathW( NULL, CSIDL_APPDATA | CSIDL_FLAG_CREATE,
 181                     NULL, SHGFP_TYPE_CURRENT, path ) )
 182             fprintf( stderr, "Can't open the vlc conf PATH\n" );
 183         swprintf( path+wcslen( path ), L"%s", L"\\vlc\\crashdump" );
 184         crashdump_path = &path[0];
 185
 186         check_crashdump();
 187         SetUnhandledExceptionFilter(vlc_exception_filter);
 188     }
 189
 190 #else /* UNDER_CE */
 191     char **argv, psz_cmdline[wcslen(lpCmdLine) * 4];
 192
 193     WideCharToMultiByte( CP_UTF8, 0, lpCmdLine, -1,
 194                          psz_cmdline, sizeof (psz_cmdline), NULL, NULL );
 195
 196     argc = parse_cmdline (psz_cmdline, &argv);
 197 #endif
 198
 199     /* Initialize libvlc */
 200     libvlc_instance_t *vlc;
 201     vlc = libvlc_new (argc, (const char **)argv);
 202     if (vlc != NULL)
 203     {
 204         libvlc_add_intf (vlc, "globalhotkeys,none");
 205         libvlc_add_intf (vlc, NULL);
 206         libvlc_playlist_play (vlc, -1, 0, NULL);
 207         libvlc_wait (vlc);
 208         libvlc_release (vlc);
 209     }
 210
 211     for (int i = 0; i < argc; i++)
 212         free (argv[i]);
 213
 214     (void)hInstance; (void)hPrevInstance; (void)lpCmdLine; (void)nCmdShow;
 215     return 0;
 216 }
 217
 218 #if !defined( UNDER_CE )
 219 /* Crashdumps handling */
 220 static void check_crashdump(void)
 221 {
 222     FILE * fd = _wfopen ( crashdump_path, L"r, ccs=UTF-8" );
 223     if( !fd )
 224         return;
 225     fclose( fd );
 226
 227     int answer = MessageBox( NULL, L"VLC media player just crashed." \
 228     " Do you want to send a bug report to the developers team?",
 229     L"VLC crash reporting", MB_YESNO);
 230
 231     if(answer == IDYES)
 232     {
 233         HINTERNET Hint = InternetOpen(L"VLC Crash Reporter", INTERNET_OPEN_TYPE_PRECONFIG, NULL,NULL,0);
 234         if(Hint)
 235         {
 236             HINTERNET ftp = InternetConnect(Hint, L"crash.videolan.org", INTERNET_DEFAULT_FTP_PORT,
 237                                             NULL, NULL, INTERNET_SERVICE_FTP, 0, 0);
 238             if(ftp)
 239             {
 240                 SYSTEMTIME now;
 241                 GetSystemTime(&now);
 242                 wchar_t remote_file[MAX_PATH];
 243                 swprintf( remote_file, L"/crashes-win32/%04d%02d%02d%02d%02d%02d",
 244                           now.wYear, now.wMonth, now.wDay, now.wHour, now.wMinute, now.wSecond );
 245
 246                 if( FtpPutFile( ftp, crashdump_path, remote_file, FTP_TRANSFER_TYPE_BINARY, 0) )
 247                     MessageBox( NULL, L"Report sent correctly. Thanks a lot for the help.",
 248                                 L"Report sent", MB_OK);
 249                 else
 250                     MessageBox( NULL, L"There was an error while transferring to the FTP server. "\
 251                                 "Thanks a lot for the help anyway.",
 252                                 L"Report sending failed", MB_OK);
 253                 InternetCloseHandle(ftp);
 254             }
 255             else
 256             {
 257                 MessageBox( NULL, L"There was an error while connecting to the FTP server. "\
 258                                 "Thanks a lot for the help anyway.",
 259                                 L"Report sending failed", MB_OK);
 260                 fprintf(stderr,"Can't connect to FTP server 0x%08lu\n",
 261                         (unsigned long)GetLastError());
 262             }
 263             InternetCloseHandle(Hint);
 264         }
 265         else
 266         {
 267               MessageBox( NULL, L"There was an error while connecting to Internet. "\
 268                                 "Thanks a lot for the help anyway.",
 269                                 L"Report sending failed", MB_OK);
 270         }
 271     }
 272
 273     _wremove(crashdump_path);
 274 }
 275
 276 /*****************************************************************************
 277  * vlc_exception_filter: handles unhandled exceptions, like segfaults
 278  *****************************************************************************/
 279 LONG WINAPI vlc_exception_filter(struct _EXCEPTION_POINTERS *lpExceptionInfo)
 280 {
 281     if(IsDebuggerPresent())
 282     {
 283         //If a debugger is present, pass the exception to the debugger with EXCEPTION_CONTINUE_SEARCH
 284         return EXCEPTION_CONTINUE_SEARCH;
 285     }
 286     else
 287     {
 288         fprintf( stderr, "unhandled vlc exception\n" );
 289
 290         FILE * fd = _wfopen ( crashdump_path, L"w, ccs=UTF-8" );
 291
 292         if( !fd )
 293         {
 294             fprintf( stderr, "\nerror while opening file" );
 295             exit( 1 );
 296         }
 297
 298         OSVERSIONINFO osvi;
 299         ZeroMemory( &osvi, sizeof(OSVERSIONINFO) );
 300         osvi.dwOSVersionInfoSize = sizeof( OSVERSIONINFO );
 301         GetVersionEx( &osvi );
 302
 303         fwprintf( fd, L"[version]\nOS=%d.%d.%d.%d.%s\nVLC=" VERSION_MESSAGE, osvi.dwMajorVersion,
 304                                                                osvi.dwMinorVersion,
 305                                                                osvi.dwBuildNumber,
 306                                                                osvi.dwPlatformId,
 307                                                                osvi.szCSDVersion);
 308
 309         const CONTEXT *const pContext = (const CONTEXT *)lpExceptionInfo->ContextRecord;
 310         const EXCEPTION_RECORD *const pException = (const EXCEPTION_RECORD *)lpExceptionInfo->ExceptionRecord;
 311         /*No nested exceptions for now*/
 312         fwprintf( fd, L"\n\n[exceptions]\n%08x at %px",pException->ExceptionCode,
 313                                                 pException->ExceptionAddress );
 314
 315         for( unsigned int i = 0; i < pException->NumberParameters; i++ )
 316             fwprintf( fd, L" | %p", pException->ExceptionInformation[i] );
 317
 318 #ifdef WIN64
 319         fwprintf( fd, L"\n\n[context]\nRDI:%px\nRSI:%px\n" \
 320                     "RBX:%px\nRDX:%px\nRCX:%px\nRAX:%px\n" \
 321                     "RBP:%px\nRIP:%px\nRSP:%px\nR8:%px\n" \
 322                     "R9:%px\nR10:%px\nR11:%px\nR12:%px\n" \
 323                     "R13:%px\nR14:%px\nR15:%px\n",
 324                         pContext->Rdi,pContext->Rsi,pContext->Rbx,
 325                         pContext->Rdx,pContext->Rcx,pContext->Rax,
 326                         pContext->Rbp,pContext->Rip,pContext->Rsp,
 327                         pContext->R8,pContext->R9,pContext->R10,
 328                         pContext->R11,pContext->R12,pContext->R13,
 329                         pContext->R14,pContext->R15 );
 330 #else
 331         fwprintf( fd, L"\n\n[context]\nEDI:%px\nESI:%px\n" \
 332                     "EBX:%px\nEDX:%px\nECX:%px\nEAX:%px\n" \
 333                     "EBP:%px\nEIP:%px\nESP:%px\n",
 334                         pContext->Edi,pContext->Esi,pContext->Ebx,
 335                         pContext->Edx,pContext->Ecx,pContext->Eax,
 336                         pContext->Ebp,pContext->Eip,pContext->Esp );
 337 #endif
 338
 339         HANDLE hpid = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ,
 340                                         FALSE, GetCurrentProcessId());
 341         if (hpid) {
 342             HMODULE mods[1024];
 343             DWORD size;
 344             if (EnumProcessModules(hpid, mods, sizeof(mods), &size)) {
 345                 fwprintf( fd, L"\n\n[modules]\n" );
 346                 for (unsigned int i = 0; i < size / sizeof(HMODULE); i++) {
 347                     wchar_t module[ 256 ];
 348                     GetModuleFileName(mods[i], module, 256);
 349                     fwprintf( fd, L"%p|%s\n", mods[i], module);
 350                 }
 351             }
 352             CloseHandle(hpid);
 353         }
 354
 355
 356         fwprintf( fd, L"\n[stacktrace]\n#EIP|base|module\n" );
 357
 358 #ifdef WIN64
 359         LPCVOID caller = (LPCVOID)pContext->Rip;
 360         LPVOID *pBase  = (LPVOID*)pContext->Rbp;
 361 #else
 362         LPVOID *pBase  = (LPVOID*)pContext->Ebp;
 363         LPCVOID caller = (LPCVOID)pContext->Eip;
 364 #endif
 365         for( unsigned frame = 0; frame <= 100; frame++ )
 366         {
 367             MEMORY_BASIC_INFORMATION mbi;
 368             wchar_t module[ 256 ];
 369             VirtualQuery( caller, &mbi, sizeof( mbi ) ) ;
 370             GetModuleFileName( mbi.AllocationBase, module, 256 );
 371             fwprintf( fd, L"%p|%s\n", caller, module );
 372
 373             /*The last BP points to NULL!*/
 374             caller = *(pBase + 1);
 375             if( !caller )
 376                 break;
 377             pBase = *pBase;
 378         }
 379
 380         fclose( fd );
 381         fflush( stderr );
 382         exit( 1 );
 383     }
 384 }
 385 #endif