programs/winevdm/winevdm.c

   1 /*
   2  * Wine virtual DOS machine
   3  *
   4  * Copyright 2003 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <stdarg.h>
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27
  28 #include "windef.h"
  29 #include "winbase.h"
  30 #include "wine/winbase16.h"
  31 #include "winuser.h"
  32 #include "wincon.h"
  33 #include "wine/unicode.h"
  34 #include "wine/debug.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(winevdm);
  37
  38 #define DOSBOX "dosbox"
  39
  40 /*** PIF file structures ***/
  41 #include "pshpack1.h"
  42
  43 /* header of a PIF file */
  44 typedef struct {
  45     BYTE unk1[2];               /* 0x00 */
  46     CHAR windowtitle[ 30 ];     /* 0x02 seems to be padded with blanks*/
  47     WORD memmax;                /* 0x20 */
  48     WORD memmin;                /* 0x22 */
  49     CHAR program[63];           /* 0x24 seems to be zero terminated */
  50     BYTE hdrflags1;             /* 0x63 various flags:
  51                                  *  02 286: text mode selected
  52                                  *  10 close window at exit
  53                                  */
  54     BYTE startdrive;            /* 0x64 */
  55     char startdir[64];          /* 0x65 */
  56     char optparams[64];         /* 0xa5 seems to be zero terminated */
  57     BYTE videomode;             /* 0xe5 */
  58     BYTE unkn2;                 /* 0xe6 ?*/
  59     BYTE irqlow;                /* 0xe7 */
  60     BYTE irqhigh;               /* 0xe8 */
  61     BYTE rows;                  /* 0xe9 */
  62     BYTE cols;                  /* 0xea */
  63     BYTE winY;                  /* 0xeb */
  64     BYTE winX;                  /* 0xec */
  65     WORD unkn3;                 /* 0xed 7??? */
  66     CHAR unkn4[64];             /* 0xef */
  67     CHAR unkn5[64];             /* 0x12f */
  68     BYTE hdrflags2;             /* 0x16f */
  69     BYTE hdrflags3;             /* 0x170 */
  70     } pifhead_t;
  71
  72 /* record header: present on every record */
  73 typedef struct {
  74     CHAR recordname[16];  /* zero terminated */
  75     WORD posofnextrecord; /* file offset, 0xffff if last */
  76     WORD startofdata;     /* file offset */
  77     WORD sizeofdata;      /* data is expected to follow directly */
  78 } recordhead_t;
  79
  80 /* 386 -enhanced mode- record */
  81 typedef struct {
  82     WORD memmax;         /* memory desired, overrides the pif header*/
  83     WORD memmin;         /* memory required, overrides the pif header*/
  84     WORD prifg;          /* foreground priority */
  85     WORD pribg;          /* background priority */
  86     WORD emsmax;         /* EMS memory limit */
  87     WORD emsmin;         /* EMS memory required */
  88     WORD xmsmax;         /* XMS memory limit */
  89     WORD xmsmin;         /* XMS memory required */
  90     WORD optflags;        /* option flags:
  91                            *  0008 full screen
  92                            *  0004 exclusive
  93                            *  0002 background
  94                            *  0001 close when active
  95                            */
  96     WORD memflags;       /* various memory flags*/
  97     WORD videoflags;     /* video flags:
  98                           *   0010 text
  99                           *   0020 med. res. graphics
 100                           *   0040 hi. res. graphics
 101                           */
 102     WORD hotkey[9];      /* Hot key info */
 103     CHAR optparams[64];  /* optional params, replaces those in the pif header */
 104 } pif386rec_t;
 105
 106 #include "poppack.h"
 107
 108 /***********************************************************************
 109  *           find_dosbox
 110  */
 111 static char *find_dosbox(void)
 112 {
 113     const char *envpath = getenv( "PATH" );
 114     struct stat st;
 115     char *path, *p, *buffer, *dir;
 116     size_t envpath_len;
 117
 118     if (!envpath) return NULL;
 119
 120     envpath_len = strlen( envpath );
 121     path = HeapAlloc( GetProcessHeap(), 0, envpath_len + 1 );
 122     buffer = HeapAlloc( GetProcessHeap(), 0, envpath_len + strlen(DOSBOX) + 2 );
 123     strcpy( path, envpath );
 124
 125     p = path;
 126     while (*p)
 127     {
 128         while (*p == ':') p++;
 129         if (!*p) break;
 130         dir = p;
 131         while (*p && *p != ':') p++;
 132         if (*p == ':') *p++ = 0;
 133         strcpy( buffer, dir );
 134         strcat( buffer, "/" DOSBOX );
 135         if (!stat( buffer, &st ))
 136         {
 137             HeapFree( GetProcessHeap(), 0, path );
 138             return buffer;
 139         }
 140     }
 141     HeapFree( GetProcessHeap(), 0, buffer );
 142     HeapFree( GetProcessHeap(), 0, path );
 143     return NULL;
 144 }
 145
 146
 147 /***********************************************************************
 148  *           start_dosbox
 149  */
 150 static void start_dosbox( const char *appname, const char *args )
 151 {
 152     static const WCHAR cfgW[] = {'c','f','g',0};
 153     const char *home = getenv( "HOME" );
 154     const char *prefix = getenv( "WINEPREFIX" );
 155     WCHAR path[MAX_PATH], config[MAX_PATH];
 156     HANDLE file;
 157     char *p, *buffer, app[MAX_PATH];
 158     int i, len;
 159     int ret = 1;
 160     DWORD written, drives = GetLogicalDrives();
 161     char *dosbox = find_dosbox();
 162
 163     if (!dosbox) return;
 164     if (!GetTempPathW( MAX_PATH, path )) return;
 165     if (!GetTempFileNameW( path, cfgW, 0, config )) return;
 166     if (!GetCurrentDirectoryW( MAX_PATH, path )) return;
 167     if (!GetShortPathNameA( appname, app, MAX_PATH )) return;
 168     GetShortPathNameW( path, path, MAX_PATH );
 169     file = CreateFileW( config, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, 0, 0 );
 170     if (file == INVALID_HANDLE_VALUE) return;
 171
 172     len = prefix ? strlen(prefix) : strlen(home) + strlen("/.wine");
 173     buffer = HeapAlloc( GetProcessHeap(), 0, sizeof("[autoexec]") +
 174                         sizeof("mount -z c") + sizeof("config -securemode") +
 175                         25 * (len + sizeof("mount c /dosdevices/c:")) +
 176                         4 * strlenW( path ) +
 177                         6 + strlen( app ) + strlen( args ) + 20 );
 178     p = buffer;
 179     p += sprintf( p, "[autoexec]\n" );
 180     for (i = 25; i >= 0; i--)
 181         if (!(drives & (1 << i)))
 182         {
 183             p += sprintf( p, "mount -z %c\n", 'a' + i );
 184             break;
 185         }
 186     for (i = 0; i <= 25; i++)
 187     {
 188         if (!(drives & (1 << i))) continue;
 189         if (prefix)
 190             p += sprintf( p, "mount %c %s/dosdevices/%c:\n", 'a' + i, prefix, 'a' + i );
 191         else
 192             p += sprintf( p, "mount %c %s/.wine/dosdevices/%c:\n", 'a' + i, home, 'a' + i );
 193     }
 194     p += sprintf( p, "%c:\ncd ", path[0] );
 195     p += WideCharToMultiByte( CP_UNIXCP, 0, path + 2, -1, p, 4 * strlenW(path), NULL, NULL ) - 1;
 196     p += sprintf( p, "\nconfig -securemode\n" );
 197     p += sprintf( p, "%s %s\n", app, args );
 198     p += sprintf( p, "exit\n" );
 199     if (WriteFile( file, buffer, strlen(buffer), &written, NULL ) && written == strlen(buffer))
 200     {
 201         const char *args[5];
 202         char *config_file = wine_get_unix_file_name( config );
 203         args[0] = dosbox;
 204         args[1] = "-userconf";
 205         args[2] = "-conf";
 206         args[3] = config_file;
 207         args[4] = NULL;
 208         ret = _spawnvp( _P_WAIT, args[0], args );
 209     }
 210     CloseHandle( file );
 211     DeleteFileW( config );
 212     HeapFree( GetProcessHeap(), 0, buffer );
 213     ExitProcess( ret );
 214 }
 215
 216
 217 /***********************************************************************
 218  *           start_dos_exe
 219  */
 220 static void start_dos_exe( LPCSTR filename, LPCSTR cmdline )
 221 {
 222     start_dosbox( filename, cmdline );
 223     WINE_MESSAGE( "winevdm: %s is a DOS application, you need to install DOSBox.\n", filename );
 224     ExitProcess(1);
 225 }
 226
 227 /***********************************************************************
 228  *           read_pif_file
 229  *pif386rec_tu
 230  * Read a pif file and return the header and possibly the 286 (real mode)
 231  * record or 386 (enhanced mode) record. Returns FALSE if the file is
 232  * invalid otherwise TRUE.
 233  */
 234 static BOOL read_pif_file( HANDLE hFile, char *progname, char *title,
 235         char *optparams, char *startdir, int *closeonexit, int *textmode)
 236 {
 237     DWORD nread;
 238     LARGE_INTEGER filesize;
 239     recordhead_t rhead;
 240     BOOL found386rec = FALSE;
 241     pif386rec_t pif386rec;
 242     pifhead_t pifheader;
 243     if( !GetFileSizeEx( hFile, &filesize) ||
 244             filesize.QuadPart <  (sizeof(pifhead_t) + sizeof(recordhead_t))) {
 245         WINE_ERR("Invalid pif file: size error %d\n", (int)filesize.QuadPart);
 246         return FALSE;
 247     }
 248     SetFilePointer( hFile, 0, NULL, FILE_BEGIN);
 249     if( !ReadFile( hFile, &pifheader, sizeof(pifhead_t), &nread, NULL))
 250         return FALSE;
 251     WINE_TRACE("header: program %s title %s startdir %s params %s\n",
 252             wine_dbgstr_a(pifheader.program),
 253             wine_dbgstr_an(pifheader.windowtitle, sizeof(pifheader.windowtitle)),
 254             wine_dbgstr_a(pifheader.startdir),
 255             wine_dbgstr_a(pifheader.optparams));
 256     WINE_TRACE("header: memory req'd %d desr'd %d drive %d videomode %d\n",
 257             pifheader.memmin, pifheader.memmax, pifheader.startdrive,
 258             pifheader.videomode);
 259     WINE_TRACE("header: flags 0x%x 0x%x 0x%x\n",
 260             pifheader.hdrflags1, pifheader.hdrflags2, pifheader.hdrflags3);
 261     ReadFile( hFile, &rhead, sizeof(recordhead_t), &nread, NULL);
 262     if( strncmp( rhead.recordname, "MICROSOFT PIFEX", 15)) {
 263         WINE_ERR("Invalid pif file: magic string not found\n");
 264         return FALSE;
 265     }
 266     /* now process the following records */
 267     while( 1) {
 268         WORD nextrecord = rhead.posofnextrecord;
 269         if( (nextrecord & 0x8000) ||
 270                 filesize.QuadPart <( nextrecord + sizeof(recordhead_t))) break;
 271         if( !SetFilePointer( hFile, nextrecord, NULL, FILE_BEGIN) ||
 272                 !ReadFile( hFile, &rhead, sizeof(recordhead_t), &nread, NULL))
 273             return FALSE;
 274         if( !rhead.recordname[0]) continue; /* deleted record */
 275         WINE_TRACE("reading record %s size %d next 0x%x\n",
 276                 wine_dbgstr_a(rhead.recordname), rhead.sizeofdata,
 277                 rhead.posofnextrecord );
 278         if( !strncmp( rhead.recordname, "WINDOWS 386", 11)) {
 279             found386rec = TRUE;
 280             ReadFile( hFile, &pif386rec, sizeof(pif386rec_t), &nread, NULL);
 281             WINE_TRACE("386rec: memory req'd %d des'd %d EMS req'd %d des'd %d XMS req'd %d des'd %d\n",
 282                     pif386rec.memmin, pif386rec.memmax,
 283                     pif386rec.emsmin, pif386rec.emsmax,
 284                     pif386rec.xmsmin, pif386rec.xmsmax);
 285             WINE_TRACE("386rec: option 0x%x memory 0x%x video 0x%x\n",
 286                     pif386rec.optflags, pif386rec.memflags,
 287                     pif386rec.videoflags);
 288             WINE_TRACE("386rec: optional parameters %s\n",
 289                     wine_dbgstr_a(pif386rec.optparams));
 290         }
 291     }
 292     /* prepare the return data */
 293     lstrcpynA( progname, pifheader.program, sizeof(pifheader.program)+1);
 294     lstrcpynA( title, pifheader.windowtitle, sizeof(pifheader.windowtitle)+1);
 295     if( found386rec)
 296         lstrcpynA( optparams, pif386rec.optparams, sizeof( pif386rec.optparams)+1);
 297     else
 298         lstrcpynA( optparams, pifheader.optparams, sizeof(pifheader.optparams)+1);
 299     lstrcpynA( startdir, pifheader.startdir, sizeof(pifheader.startdir)+1);
 300     *closeonexit = pifheader.hdrflags1 & 0x10;
 301     *textmode = found386rec ? pif386rec.videoflags & 0x0010
 302                             : pifheader.hdrflags1 & 0x0002;
 303     return TRUE;
 304 }
 305
 306 /***********************************************************************
 307  *              pif_cmd
 308  *
 309  * execute a pif file.
 310  */
 311 static VOID pif_cmd( char *filename, char *cmdline)
 312 {
 313     HANDLE hFile;
 314     char progpath[MAX_PATH];
 315     char buf[308];
 316     char progname[64];
 317     char title[31];
 318     char optparams[65];
 319     char startdir[65];
 320     char *p;
 321     int closeonexit;
 322     int textmode;
 323     if( (hFile = CreateFileA( filename, GENERIC_READ, FILE_SHARE_READ,
 324                     NULL, OPEN_EXISTING, 0, 0 )) == INVALID_HANDLE_VALUE)
 325     {
 326         WINE_ERR("open file %s failed\n", wine_dbgstr_a(filename));
 327         return;
 328     }
 329     if( !read_pif_file( hFile, progname, title, optparams, startdir,
 330                 &closeonexit, &textmode)) {
 331         WINE_ERR( "failed to read %s\n", wine_dbgstr_a(filename));
 332         CloseHandle( hFile);
 333         sprintf( buf, "%s\nInvalid file format. Check your pif file.",
 334                 filename);
 335         MessageBoxA( NULL, buf, "16 bit DOS subsystem", MB_OK|MB_ICONWARNING);
 336         SetLastError( ERROR_BAD_FORMAT);
 337         return;
 338     }
 339     CloseHandle( hFile);
 340     if( (p = strrchr( progname, '.')) && !strcasecmp( p, ".bat"))
 341         WINE_FIXME(".bat programs in pif files are not supported.\n");
 342     /* first change dir, so the search below can start from there */
 343     if( startdir[0] && !SetCurrentDirectoryA( startdir)) {
 344         WINE_ERR("Cannot change directory %s\n", wine_dbgstr_a( startdir));
 345         sprintf( buf, "%s\nInvalid startup directory. Check your pif file.",
 346                 filename);
 347         MessageBoxA( NULL, buf, "16 bit DOS subsystem", MB_OK|MB_ICONWARNING);
 348     }
 349     /* search for the program */
 350     if( !SearchPathA( NULL, progname, NULL, MAX_PATH, progpath, NULL )) {
 351         sprintf( buf, "%s\nInvalid program file name. Check your pif file.",
 352                 filename);
 353         MessageBoxA( NULL, buf, "16 bit DOS subsystem", MB_OK|MB_ICONERROR);
 354         SetLastError( ERROR_FILE_NOT_FOUND);
 355         return;
 356     }
 357     if( textmode)
 358         if( AllocConsole())
 359             SetConsoleTitleA( title) ;
 360     /* if no arguments on the commandline, use them from the pif file */
 361     if( !cmdline[0] && optparams[0])
 362         cmdline = optparams;
 363     /* FIXME: do something with:
 364      * - close on exit
 365      * - graphic modes
 366      * - hot key's
 367      * - etc.
 368      */
 369     start_dos_exe( progpath, cmdline );
 370 }
 371
 372 /***********************************************************************
 373  *           build_command_line
 374  *
 375  * Build the command line of a process from the argv array.
 376  * Copied from ENV_BuildCommandLine.
 377  */
 378 static char *build_command_line( char **argv )
 379 {
 380     int len;
 381     char *p, **arg, *cmd_line;
 382
 383     len = 0;
 384     for (arg = argv; *arg; arg++)
 385     {
 386         BOOL has_space;
 387         int bcount;
 388         char* a;
 389
 390         has_space=FALSE;
 391         bcount=0;
 392         a=*arg;
 393         if( !*a ) has_space=TRUE;
 394         while (*a!='\0') {
 395             if (*a=='\\') {
 396                 bcount++;
 397             } else {
 398                 if (*a==' ' || *a=='\t') {
 399                     has_space=TRUE;
 400                 } else if (*a=='"') {
 401                     /* doubling of '\' preceding a '"',
 402                      * plus escaping of said '"'
 403                      */
 404                     len+=2*bcount+1;
 405                 }
 406                 bcount=0;
 407             }
 408             a++;
 409         }
 410         len+=(a-*arg)+1 /* for the separating space */;
 411         if (has_space)
 412             len+=2; /* for the quotes */
 413     }
 414
 415     if (!(cmd_line = HeapAlloc( GetProcessHeap(), 0, len ? len + 1 : 2 )))
 416         return NULL;
 417
 418     p = cmd_line;
 419     *p++ = (len < 256) ? len : 255;
 420     for (arg = argv; *arg; arg++)
 421     {
 422         BOOL has_space,has_quote;
 423         char* a;
 424
 425         /* Check for quotes and spaces in this argument */
 426         has_space=has_quote=FALSE;
 427         a=*arg;
 428         if( !*a ) has_space=TRUE;
 429         while (*a!='\0') {
 430             if (*a==' ' || *a=='\t') {
 431                 has_space=TRUE;
 432                 if (has_quote)
 433                     break;
 434             } else if (*a=='"') {
 435                 has_quote=TRUE;
 436                 if (has_space)
 437                     break;
 438             }
 439             a++;
 440         }
 441
 442         /* Now transfer it to the command line */
 443         if (has_space)
 444             *p++='"';
 445         if (has_quote) {
 446             int bcount;
 447
 448             bcount=0;
 449             a=*arg;
 450             while (*a!='\0') {
 451                 if (*a=='\\') {
 452                     *p++=*a;
 453                     bcount++;
 454                 } else {
 455                     if (*a=='"') {
 456                         int i;
 457
 458                         /* Double all the '\\' preceding this '"', plus one */
 459                         for (i=0;i<=bcount;i++)
 460                             *p++='\\';
 461                         *p++='"';
 462                     } else {
 463                         *p++=*a;
 464                     }
 465                     bcount=0;
 466                 }
 467                 a++;
 468             }
 469         } else {
 470             strcpy(p,*arg);
 471             p+=strlen(*arg);
 472         }
 473         if (has_space)
 474             *p++='"';
 475         *p++=' ';
 476     }
 477     if (len) p--;  /* remove last space */
 478     *p = '\0';
 479     return cmd_line;
 480 }
 481
 482
 483 /***********************************************************************
 484  *           usage
 485  */
 486 static void usage(void)
 487 {
 488     WINE_MESSAGE( "Usage: winevdm.exe [--app-name app.exe] command line\n\n" );
 489     ExitProcess(1);
 490 }
 491
 492
 493 /***********************************************************************
 494  *           main
 495  */
 496 int __cdecl main( int argc, char *argv[] )
 497 {
 498     DWORD count;
 499     HINSTANCE16 instance;
 500     LOADPARAMS16 params;
 501     WORD showCmd[2];
 502     char buffer[MAX_PATH];
 503     STARTUPINFOA info;
 504     char *cmdline, *appname, **first_arg;
 505     char *p;
 506
 507     if (!argv[1]) usage();
 508
 509     if (!strcmp( argv[1], "--app-name" ))
 510     {
 511         if (!(appname = argv[2])) usage();
 512         first_arg = argv + 3;
 513     }
 514     else
 515     {
 516         if (!SearchPathA( NULL, argv[1], ".exe", sizeof(buffer), buffer, NULL ))
 517         {
 518             WINE_MESSAGE( "winevdm: unable to exec '%s': file not found\n", argv[1] );
 519             ExitProcess(1);
 520         }
 521         appname = buffer;
 522         first_arg = argv + 1;
 523     }
 524
 525     if (*first_arg) first_arg++;  /* skip program name */
 526     cmdline = build_command_line( first_arg );
 527
 528     if (WINE_TRACE_ON(winevdm))
 529     {
 530         int i;
 531         WINE_TRACE( "GetCommandLine = '%s'\n", GetCommandLineA() );
 532         WINE_TRACE( "appname = '%s'\n", appname );
 533         WINE_TRACE( "cmdline = '%.*s'\n", cmdline[0], cmdline+1 );
 534         for (i = 0; argv[i]; i++) WINE_TRACE( "argv[%d]: '%s'\n", i, argv[i] );
 535     }
 536
 537     GetStartupInfoA( &info );
 538     showCmd[0] = 2;
 539     showCmd[1] = (info.dwFlags & STARTF_USESHOWWINDOW) ? info.wShowWindow : SW_SHOWNORMAL;
 540
 541     params.hEnvironment = 0;
 542     params.cmdLine = MapLS( cmdline );
 543     params.showCmd = MapLS( showCmd );
 544     params.reserved = 0;
 545
 546     RestoreThunkLock(1);  /* grab the Win16 lock */
 547
 548     /* some programs assume mmsystem is always present */
 549     LoadLibrary16( "gdi.exe" );
 550     LoadLibrary16( "user.exe" );
 551     LoadLibrary16( "mmsystem.dll" );
 552
 553     if ((instance = LoadModule16( appname, &params )) < 32)
 554     {
 555         if (instance == 11)
 556         {
 557             /* first see if it is a .pif file */
 558             if( ( p = strrchr( appname, '.' )) && !strcasecmp( p, ".pif"))
 559                 pif_cmd( appname, cmdline + 1);
 560             else
 561             {
 562                 /* try DOS format */
 563                 /* loader expects arguments to be regular C strings */
 564                 start_dos_exe( appname, cmdline + 1 );
 565             }
 566             /* if we get back here it failed */
 567             instance = GetLastError();
 568         }
 569
 570         WINE_MESSAGE( "winevdm: can't exec '%s': ", appname );
 571         switch (instance)
 572         {
 573         case  2: WINE_MESSAGE("file not found\n" ); break;
 574         case 11: WINE_MESSAGE("invalid program file\n" ); break;
 575         default: WINE_MESSAGE("error=%d\n", instance ); break;
 576         }
 577         ExitProcess(instance);
 578     }
 579
 580     /* wait forever; the process will be killed when the last task exits */
 581     ReleaseThunkLock( &count );
 582     Sleep( INFINITE );
 583     return 0;
 584 }