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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include <stdarg.h>
  22 #include <stdio.h>
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "wine/winbase16.h"
  27 #include "winuser.h"
  28 #include "wincon.h"
  29 #include "wine/debug.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(winevdm);
  32
  33 static void (WINAPI *wine_load_dos_exe)( LPCSTR filename, LPCSTR cmdline );
  34
  35
  36 /*** PIF file structures ***/
  37 #include "pshpack1.h"
  38
  39 /* header of a PIF file */
  40 typedef struct {
  41     BYTE unk1[2];               /* 0x00 */
  42     CHAR windowtitle[ 30 ];     /* 0x02 seems to be padded with blanks*/
  43     WORD memmax;                /* 0x20 */
  44     WORD memmin;                /* 0x22 */
  45     CHAR program[63];           /* 0x24 seems to be zero terminated */
  46     BYTE hdrflags1;             /* 0x63 various flags:
  47                                  *  02 286: text mode selected
  48                                  *  10 close window at exit
  49                                  */
  50     BYTE startdrive;            /* 0x64 */
  51     char startdir[64];          /* 0x65 */
  52     char optparams[64];         /* 0xa5 seems to be zero terminated */
  53     BYTE videomode;             /* 0xe5 */
  54     BYTE unkn2;                 /* 0xe6 ?*/
  55     BYTE irqlow;                /* 0xe7 */
  56     BYTE irqhigh;               /* 0xe8 */
  57     BYTE rows;                  /* 0xe9 */
  58     BYTE cols;                  /* 0xea */
  59     BYTE winY;                  /* 0xeb */
  60     BYTE winX;                  /* 0xec */
  61     WORD unkn3;                 /* 0xed 7??? */
  62     CHAR unkn4[64];             /* 0xef */
  63     CHAR unkn5[64];             /* 0x12f */
  64     BYTE hdrflags2;             /* 0x16f */
  65     BYTE hdrflags3;             /* 0x170 */
  66     } pifhead_t;
  67
  68 /* record header: present on every record */
  69 typedef struct {
  70     CHAR recordname[16];  /* zero terminated */
  71     WORD posofnextrecord; /* file offset, 0xffff if last */
  72     WORD startofdata;     /* file offset */
  73     WORD sizeofdata;      /* data is expected to follow directly */
  74 } recordhead_t;
  75
  76 /* 386 -enhanced mode- record */
  77 typedef struct {
  78     WORD memmax;         /* memory desired, overrides the pif header*/
  79     WORD memmin;         /* memory required, overrides the pif header*/
  80     WORD prifg;          /* foreground priority */
  81     WORD pribg;          /* background priority */
  82     WORD emsmax;         /* EMS memory limit */
  83     WORD emsmin;         /* EMS memory required */
  84     WORD xmsmax;         /* XMS memory limit */
  85     WORD xmsmin;         /* XMS memory required */
  86     WORD optflags;        /* option flags:
  87                            *  0008 full screen
  88                            *  0004 exclusive
  89                            *  0002 background
  90                            *  0001 close when active
  91                            */
  92     WORD memflags;       /* various memory flags*/
  93     WORD videoflags;     /* video flags:
  94                           *   0010 text
  95                           *   0020 med. res. graphics
  96                           *   0040 hi. res. graphics
  97                           */
  98     WORD hotkey[9];      /* Hot key info */
  99     CHAR optparams[64];  /* optional params, replaces those in the pif header */
 100 } pif386rec_t;
 101
 102 #include "poppack.h"
 103
 104 /***********************************************************************
 105  *           read_pif_file
 106  *pif386rec_tu
 107  * Read a pif file and return the header and possibly the 286 (real mode)
 108  * record or 386 (enhanced mode) record. Returns FALSE if the file is
 109  * invalid otherwise TRUE.
 110  */
 111 static BOOL read_pif_file( HANDLE hFile, char *progname, char *title,
 112         char *optparams, char *startdir, int *closeonexit, int *textmode)
 113 {
 114     DWORD nread;
 115     LARGE_INTEGER filesize;
 116     recordhead_t rhead;
 117     BOOL found386rec = FALSE;
 118     pif386rec_t pif386rec;
 119     pifhead_t pifheader;
 120     if( !GetFileSizeEx( hFile, &filesize) ||
 121             filesize.QuadPart <  (sizeof(pifhead_t) + sizeof(recordhead_t))) {
 122         WINE_ERR("Invalid pif file: size error %d must be >= %d\n",
 123                 (int)filesize.QuadPart,
 124                 (sizeof(pifhead_t) + sizeof(recordhead_t)));
 125         return FALSE;
 126     }
 127     SetFilePointer( hFile, 0, NULL, FILE_BEGIN);
 128     if( !ReadFile( hFile, &pifheader, sizeof(pifhead_t), &nread, NULL))
 129         return FALSE;
 130     WINE_TRACE("header: program %s title %s startdir %s params %s\n",
 131             wine_dbgstr_a(pifheader.program),
 132             wine_dbgstr_an(pifheader.windowtitle, sizeof(pifheader.windowtitle)),
 133             wine_dbgstr_a(pifheader.startdir),
 134             wine_dbgstr_a(pifheader.optparams));
 135     WINE_TRACE("header: memory req'd %d desr'd %d drive %d videomode %d\n",
 136             pifheader.memmin, pifheader.memmax, pifheader.startdrive,
 137             pifheader.videomode);
 138     WINE_TRACE("header: flags 0x%x 0x%x 0x%x\n",
 139             pifheader.hdrflags1, pifheader.hdrflags2, pifheader.hdrflags3);
 140     ReadFile( hFile, &rhead, sizeof(recordhead_t), &nread, NULL);
 141     if( strncmp( rhead.recordname, "MICROSOFT PIFEX", 15)) {
 142         WINE_ERR("Invalid pif file: magic string not found\n");
 143         return FALSE;
 144     }
 145     /* now process the following records */
 146     while( 1) {
 147         WORD nextrecord = rhead.posofnextrecord;
 148         if( (nextrecord & 0x8000) ||
 149                 filesize.QuadPart <( nextrecord + sizeof(recordhead_t))) break;
 150         if( !SetFilePointer( hFile, nextrecord, NULL, FILE_BEGIN) ||
 151                 !ReadFile( hFile, &rhead, sizeof(recordhead_t), &nread, NULL))
 152             return FALSE;
 153         if( !rhead.recordname[0]) continue; /* deleted record */
 154         WINE_TRACE("reading record %s size %d next 0x%x\n",
 155                 wine_dbgstr_a(rhead.recordname), rhead.sizeofdata,
 156                 rhead.posofnextrecord );
 157         if( !strncmp( rhead.recordname, "WINDOWS 386", 11)) {
 158             found386rec = TRUE;
 159             ReadFile( hFile, &pif386rec, sizeof(pif386rec_t), &nread, NULL);
 160             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",
 161                     pif386rec.memmin, pif386rec.memmax,
 162                     pif386rec.emsmin, pif386rec.emsmax,
 163                     pif386rec.xmsmin, pif386rec.xmsmax);
 164             WINE_TRACE("386rec: option 0x%x memory 0x%x video 0x%x\n",
 165                     pif386rec.optflags, pif386rec.memflags,
 166                     pif386rec.videoflags);
 167             WINE_TRACE("386rec: optional parameters %s\n",
 168                     wine_dbgstr_a(pif386rec.optparams));
 169         }
 170     }
 171     /* prepare the return data */
 172     strncpy( progname, pifheader.program, sizeof(pifheader.program));
 173     memcpy( title, pifheader.windowtitle, sizeof(pifheader.windowtitle));
 174     title[ sizeof(pifheader.windowtitle) ] = '\0';
 175     if( found386rec)
 176         strncpy( optparams, pif386rec.optparams, sizeof( pif386rec.optparams));
 177     else
 178         strncpy( optparams, pifheader.optparams, sizeof(pifheader.optparams));
 179     strncpy( startdir, pifheader.startdir, sizeof(pifheader.startdir));
 180     *closeonexit = pifheader.hdrflags1 & 0x10;
 181     *textmode = found386rec ? pif386rec.videoflags & 0x0010
 182                             : pifheader.hdrflags1 & 0x0002;
 183     return TRUE;
 184 }
 185
 186 /***********************************************************************
 187  *              pif_cmd
 188  *
 189  * execute a pif file.
 190  */
 191 static VOID pif_cmd( char *filename, char *cmdline)
 192 {
 193     HANDLE hFile;
 194     char progpath[MAX_PATH];
 195     char buf[128];
 196     char progname[64];
 197     char title[31];
 198     char optparams[64];
 199     char startdir[64];
 200     char *p;
 201     int closeonexit;
 202     int textmode;
 203     if( (hFile = CreateFileA( filename, GENERIC_READ, FILE_SHARE_READ,
 204                     NULL, OPEN_EXISTING, 0, 0 )) == INVALID_HANDLE_VALUE)
 205     {
 206         WINE_ERR("open file %s failed\n", wine_dbgstr_a(filename));
 207         return;
 208     }
 209     if( !read_pif_file( hFile, progname, title, optparams, startdir,
 210                 &closeonexit, &textmode)) {
 211         WINE_ERR( "failed to read %s\n", wine_dbgstr_a(filename));
 212         CloseHandle( hFile);
 213         sprintf( buf, "%s\nInvalid file format. Check your pif file.",
 214                 filename);
 215         MessageBoxA( NULL, buf, "16 bit DOS subsystem", MB_OK|MB_ICONWARNING);
 216         SetLastError( ERROR_BAD_FORMAT);
 217         return;
 218     }
 219     CloseHandle( hFile);
 220     if( (p = strrchr( progname, '.')) && !strcasecmp( p, ".bat"))
 221         WINE_FIXME(".bat programs in pif files are not supported.\n");
 222     /* first change dir, so the search below can start from there */
 223     if( startdir[0] && !SetCurrentDirectory( startdir)) {
 224         WINE_ERR("Cannot change directory %s\n", wine_dbgstr_a( startdir));
 225         sprintf( buf, "%s\nInvalid startup directory. Check your pif file.",
 226                 filename);
 227         MessageBoxA( NULL, buf, "16 bit DOS subsystem", MB_OK|MB_ICONWARNING);
 228     }
 229     /* search for the program */
 230     if( !SearchPathA( NULL, progname, NULL, MAX_PATH, progpath, NULL )) {
 231         sprintf( buf, "%s\nInvalid program file name. Check your pif file.",
 232                 filename);
 233         MessageBoxA( NULL, buf, "16 bit DOS subsystem", MB_OK|MB_ICONERROR);
 234         SetLastError( ERROR_FILE_NOT_FOUND);
 235         return;
 236     }
 237     if( textmode)
 238         if( AllocConsole())
 239             SetConsoleTitleA( title) ;
 240     /* if no arguments on the commandline, use them from the pif file */
 241     if( !cmdline[0] && optparams[0])
 242         cmdline = optparams;
 243     /* FIXME: do something with:
 244      * - close on exit
 245      * - graphic modes
 246      * - hot key's
 247      * - etc.
 248      */
 249     wine_load_dos_exe( progpath, cmdline );
 250     return;
 251 }
 252
 253 /***********************************************************************
 254  *           build_command_line
 255  *
 256  * Build the command line of a process from the argv array.
 257  * Copied from ENV_BuildCommandLine.
 258  */
 259 static char *build_command_line( char **argv )
 260 {
 261     int len;
 262     char *p, **arg, *cmd_line;
 263
 264     len = 0;
 265     for (arg = argv; *arg; arg++)
 266     {
 267         int has_space,bcount;
 268         char* a;
 269
 270         has_space=0;
 271         bcount=0;
 272         a=*arg;
 273         if( !*a ) has_space=1;
 274         while (*a!='\0') {
 275             if (*a=='\\') {
 276                 bcount++;
 277             } else {
 278                 if (*a==' ' || *a=='\t') {
 279                     has_space=1;
 280                 } else if (*a=='"') {
 281                     /* doubling of '\' preceding a '"',
 282                      * plus escaping of said '"'
 283                      */
 284                     len+=2*bcount+1;
 285                 }
 286                 bcount=0;
 287             }
 288             a++;
 289         }
 290         len+=(a-*arg)+1 /* for the separating space */;
 291         if (has_space)
 292             len+=2; /* for the quotes */
 293     }
 294
 295     if (!(cmd_line = HeapAlloc( GetProcessHeap(), 0, len ? len + 1 : 2 )))
 296         return NULL;
 297
 298     p = cmd_line;
 299     *p++ = (len < 256) ? len : 255;
 300     for (arg = argv; *arg; arg++)
 301     {
 302         int has_space,has_quote;
 303         char* a;
 304
 305         /* Check for quotes and spaces in this argument */
 306         has_space=has_quote=0;
 307         a=*arg;
 308         if( !*a ) has_space=1;
 309         while (*a!='\0') {
 310             if (*a==' ' || *a=='\t') {
 311                 has_space=1;
 312                 if (has_quote)
 313                     break;
 314             } else if (*a=='"') {
 315                 has_quote=1;
 316                 if (has_space)
 317                     break;
 318             }
 319             a++;
 320         }
 321
 322         /* Now transfer it to the command line */
 323         if (has_space)
 324             *p++='"';
 325         if (has_quote) {
 326             int bcount;
 327             char* a;
 328
 329             bcount=0;
 330             a=*arg;
 331             while (*a!='\0') {
 332                 if (*a=='\\') {
 333                     *p++=*a;
 334                     bcount++;
 335                 } else {
 336                     if (*a=='"') {
 337                         int i;
 338
 339                         /* Double all the '\\' preceding this '"', plus one */
 340                         for (i=0;i<=bcount;i++)
 341                             *p++='\\';
 342                         *p++='"';
 343                     } else {
 344                         *p++=*a;
 345                     }
 346                     bcount=0;
 347                 }
 348                 a++;
 349             }
 350         } else {
 351             strcpy(p,*arg);
 352             p+=strlen(*arg);
 353         }
 354         if (has_space)
 355             *p++='"';
 356         *p++=' ';
 357     }
 358     if (len) p--;  /* remove last space */
 359     *p = '\0';
 360     return cmd_line;
 361 }
 362
 363
 364 /***********************************************************************
 365  *           usage
 366  */
 367 static void usage(void)
 368 {
 369     WINE_MESSAGE( "Usage: winevdm.exe [--app-name app.exe] command line\n\n" );
 370     ExitProcess(1);
 371 }
 372
 373
 374 /***********************************************************************
 375  *           main
 376  */
 377 int main( int argc, char *argv[] )
 378 {
 379     DWORD count;
 380     HINSTANCE16 instance;
 381     LOADPARAMS16 params;
 382     WORD showCmd[2];
 383     char buffer[MAX_PATH];
 384     STARTUPINFOA info;
 385     char *cmdline, *appname, **first_arg;
 386     char *p;
 387     HMODULE winedos;
 388
 389     if (!argv[1]) usage();
 390
 391     if (!strcmp( argv[1], "--app-name" ))
 392     {
 393         if (!(appname = argv[2])) usage();
 394         first_arg = argv + 3;
 395     }
 396     else
 397     {
 398         if (!SearchPathA( NULL, argv[1], ".exe", sizeof(buffer), buffer, NULL ))
 399         {
 400             WINE_MESSAGE( "winevdm: unable to exec '%s': file not found\n", argv[1] );
 401             ExitProcess(1);
 402         }
 403         appname = buffer;
 404         first_arg = argv + 1;
 405     }
 406
 407     if (!(winedos = LoadLibraryA( "winedos.dll" )) ||
 408         !(wine_load_dos_exe = (void *)GetProcAddress( winedos, "wine_load_dos_exe" )))
 409     {
 410         WINE_MESSAGE( "winevdm: unable to exec '%s': 16-bit support missing\n", argv[1] );
 411         ExitProcess(1);
 412     }
 413
 414     if (*first_arg) first_arg++;  /* skip program name */
 415     cmdline = build_command_line( first_arg );
 416
 417     if (WINE_TRACE_ON(winevdm))
 418     {
 419         int i;
 420         WINE_TRACE( "GetCommandLine = '%s'\n", GetCommandLineA() );
 421         WINE_TRACE( "appname = '%s'\n", appname );
 422         WINE_TRACE( "cmdline = '%.*s'\n", cmdline[0], cmdline+1 );
 423         for (i = 0; argv[i]; i++) WINE_TRACE( "argv[%d]: '%s'\n", i, argv[i] );
 424     }
 425
 426     GetStartupInfoA( &info );
 427     showCmd[0] = 2;
 428     showCmd[1] = (info.dwFlags & STARTF_USESHOWWINDOW) ? info.wShowWindow : SW_SHOWNORMAL;
 429
 430     params.hEnvironment = 0;
 431     params.cmdLine = MapLS( cmdline );
 432     params.showCmd = MapLS( showCmd );
 433     params.reserved = 0;
 434
 435     RestoreThunkLock(1);  /* grab the Win16 lock */
 436
 437     /* some programs assume mmsystem is always present */
 438     LoadLibrary16( "gdi.exe" );
 439     LoadLibrary16( "user.exe" );
 440     LoadLibrary16( "mmsystem.dll" );
 441
 442     /* make sure system drivers are loaded */
 443     LoadLibrary16( "comm.drv" );
 444     LoadLibrary16( "display.drv" );
 445     LoadLibrary16( "keyboard.drv" );
 446     LoadLibrary16( "mouse.drv" );
 447
 448     if ((instance = LoadModule16( appname, &params )) < 32)
 449     {
 450         if (instance == 11)
 451         {
 452             /* first see if it is a .pif file */
 453             if( ( p = strrchr( appname, '.' )) && !strcasecmp( p, ".pif"))
 454                 pif_cmd( appname, cmdline + 1);
 455             else
 456                 /* try DOS format */
 457                 /* loader expects arguments to be regular C strings */
 458                 wine_load_dos_exe( appname, cmdline + 1 );
 459             /* if we get back here it failed */
 460             instance = GetLastError();
 461         }
 462
 463         WINE_MESSAGE( "winevdm: can't exec '%s': ", appname );
 464         switch (instance)
 465         {
 466         case  2: WINE_MESSAGE("file not found\n" ); break;
 467         case 11: WINE_MESSAGE("invalid program file\n" ); break;
 468         default: WINE_MESSAGE("error=%d\n", instance ); break;
 469         }
 470         ExitProcess(instance);
 471     }
 472
 473     /* wait forever; the process will be killed when the last task exits */
 474     ReleaseThunkLock( &count );
 475     Sleep( INFINITE );
 476     return 0;
 477 }