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