Sweden-Number/programs/winevdm/winevdm.c

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/*
* Wine virtual DOS machine
*
* Copyright 2003 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdarg.h>
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#include <stdio.h>
#include <stdlib.h>
#include "windef.h"
#include "winbase.h"
#include "wine/winbase16.h"
#include "winuser.h"
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#include "wincon.h"
#include "wine/unicode.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(winevdm);
extern void __wine_load_dos_exe( LPCSTR filename, LPCSTR cmdline );
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/*** PIF file structures ***/
#include "pshpack1.h"
/* header of a PIF file */
typedef struct {
BYTE unk1[2]; /* 0x00 */
CHAR windowtitle[ 30 ]; /* 0x02 seems to be padded with blanks*/
WORD memmax; /* 0x20 */
WORD memmin; /* 0x22 */
CHAR program[63]; /* 0x24 seems to be zero terminated */
BYTE hdrflags1; /* 0x63 various flags:
* 02 286: text mode selected
* 10 close window at exit
*/
BYTE startdrive; /* 0x64 */
char startdir[64]; /* 0x65 */
char optparams[64]; /* 0xa5 seems to be zero terminated */
BYTE videomode; /* 0xe5 */
BYTE unkn2; /* 0xe6 ?*/
BYTE irqlow; /* 0xe7 */
BYTE irqhigh; /* 0xe8 */
BYTE rows; /* 0xe9 */
BYTE cols; /* 0xea */
BYTE winY; /* 0xeb */
BYTE winX; /* 0xec */
WORD unkn3; /* 0xed 7??? */
CHAR unkn4[64]; /* 0xef */
CHAR unkn5[64]; /* 0x12f */
BYTE hdrflags2; /* 0x16f */
BYTE hdrflags3; /* 0x170 */
} pifhead_t;
/* record header: present on every record */
typedef struct {
CHAR recordname[16]; /* zero terminated */
WORD posofnextrecord; /* file offset, 0xffff if last */
WORD startofdata; /* file offset */
WORD sizeofdata; /* data is expected to follow directly */
} recordhead_t;
/* 386 -enhanced mode- record */
typedef struct {
WORD memmax; /* memory desired, overrides the pif header*/
WORD memmin; /* memory required, overrides the pif header*/
WORD prifg; /* foreground priority */
WORD pribg; /* background priority */
WORD emsmax; /* EMS memory limit */
WORD emsmin; /* EMS memory required */
WORD xmsmax; /* XMS memory limit */
WORD xmsmin; /* XMS memory required */
WORD optflags; /* option flags:
* 0008 full screen
* 0004 exclusive
* 0002 background
* 0001 close when active
*/
WORD memflags; /* various memory flags*/
WORD videoflags; /* video flags:
* 0010 text
* 0020 med. res. graphics
* 0040 hi. res. graphics
*/
WORD hotkey[9]; /* Hot key info */
CHAR optparams[64]; /* optional params, replaces those in the pif header */
} pif386rec_t;
#include "poppack.h"
/***********************************************************************
* find_dosbox
*/
static char *find_dosbox(void)
{
const char *envpath = getenv( "PATH" );
struct stat st;
char *path, *p, *buffer, *dir;
size_t envpath_len;
if (!envpath) return NULL;
envpath_len = strlen( envpath );
path = HeapAlloc( GetProcessHeap(), 0, envpath_len + 1 );
buffer = HeapAlloc( GetProcessHeap(), 0, envpath_len + sizeof("/dosbox") );
strcpy( path, envpath );
p = path;
while (*p)
{
while (*p == ':') p++;
if (!*p) break;
dir = p;
while (*p && *p != ':') p++;
if (*p == ':') *p++ = 0;
strcpy( buffer, dir );
strcat( buffer, "/dosbox" );
if (!stat( buffer, &st ))
{
HeapFree( GetProcessHeap(), 0, path );
return buffer;
}
}
HeapFree( GetProcessHeap(), 0, buffer );
HeapFree( GetProcessHeap(), 0, path );
return NULL;
}
/***********************************************************************
* start_dosbox
*/
static void start_dosbox( const char *appname, const char *args )
{
static const WCHAR cfgW[] = {'c','f','g',0};
const char *config_dir = wine_get_config_dir();
WCHAR path[MAX_PATH], config[MAX_PATH];
HANDLE file;
char *p, *buffer;
int i;
int ret = 1;
DWORD written, drives = GetLogicalDrives();
char *dosbox = find_dosbox();
if (!dosbox) return;
if (!GetTempPathW( MAX_PATH, path )) return;
if (!GetTempFileNameW( path, cfgW, 0, config )) return;
if (!GetCurrentDirectoryW( MAX_PATH, path )) return;
file = CreateFileW( config, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, 0, 0 );
if (file == INVALID_HANDLE_VALUE) return;
buffer = HeapAlloc( GetProcessHeap(), 0, sizeof("[autoexec]") +
25 * (strlen(config_dir) + sizeof("mount c /dosdevices/c:")) +
4 * strlenW( path ) +
6 + strlen( appname ) + strlen( args ) + 20 );
p = buffer;
p += sprintf( p, "[autoexec]\n" );
for (i = 0; i < 25; i++)
if (drives & (1 << i))
p += sprintf( p, "mount %c %s/dosdevices/%c:\n", 'a' + i, config_dir, 'a' + i );
p += sprintf( p, "%c:\ncd ", path[0] );
p += WideCharToMultiByte( CP_UNIXCP, 0, path + 2, -1, p, 4 * strlenW(path), NULL, NULL ) - 1;
p += sprintf( p, "\n%s %s\n", appname, args );
p += sprintf( p, "exit\n" );
if (WriteFile( file, buffer, strlen(buffer), &written, NULL ) && written == strlen(buffer))
{
const char *args[4];
char *config_file = wine_get_unix_file_name( config );
args[0] = dosbox;
args[1] = "-conf";
args[2] = config_file;
args[3] = NULL;
ret = spawnvp( _P_WAIT, args[0], args );
}
CloseHandle( file );
DeleteFileW( config );
HeapFree( GetProcessHeap(), 0, buffer );
ExitProcess( ret );
}
/***********************************************************************
* start_dos_exe
*/
static void start_dos_exe( LPCSTR filename, LPCSTR cmdline )
{
MEMORY_BASIC_INFORMATION mem_info;
const char *reason;
if (VirtualQuery( NULL, &mem_info, sizeof(mem_info) ) && mem_info.State != MEM_FREE)
{
__wine_load_dos_exe( filename, cmdline );
if (GetLastError() == ERROR_NOT_SUPPORTED)
reason = "because vm86 mode is not supported on this platform";
else
reason = wine_dbg_sprintf( "It failed with error code %u", GetLastError() );
}
else reason = "because the DOS memory range is unavailable";
start_dosbox( filename, cmdline );
WINE_MESSAGE( "winevdm: Cannot start DOS application %s\n", filename );
WINE_MESSAGE( " %s.\n", reason );
WINE_MESSAGE( " Try running this application with DOSBox.\n" );
ExitProcess(1);
}
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/***********************************************************************
* read_pif_file
*pif386rec_tu
* Read a pif file and return the header and possibly the 286 (real mode)
* record or 386 (enhanced mode) record. Returns FALSE if the file is
* invalid otherwise TRUE.
*/
static BOOL read_pif_file( HANDLE hFile, char *progname, char *title,
char *optparams, char *startdir, int *closeonexit, int *textmode)
{
DWORD nread;
LARGE_INTEGER filesize;
recordhead_t rhead;
BOOL found386rec = FALSE;
pif386rec_t pif386rec;
pifhead_t pifheader;
if( !GetFileSizeEx( hFile, &filesize) ||
filesize.QuadPart < (sizeof(pifhead_t) + sizeof(recordhead_t))) {
WINE_ERR("Invalid pif file: size error %d\n", (int)filesize.QuadPart);
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return FALSE;
}
SetFilePointer( hFile, 0, NULL, FILE_BEGIN);
if( !ReadFile( hFile, &pifheader, sizeof(pifhead_t), &nread, NULL))
return FALSE;
WINE_TRACE("header: program %s title %s startdir %s params %s\n",
wine_dbgstr_a(pifheader.program),
wine_dbgstr_an(pifheader.windowtitle, sizeof(pifheader.windowtitle)),
wine_dbgstr_a(pifheader.startdir),
wine_dbgstr_a(pifheader.optparams));
WINE_TRACE("header: memory req'd %d desr'd %d drive %d videomode %d\n",
pifheader.memmin, pifheader.memmax, pifheader.startdrive,
pifheader.videomode);
WINE_TRACE("header: flags 0x%x 0x%x 0x%x\n",
pifheader.hdrflags1, pifheader.hdrflags2, pifheader.hdrflags3);
ReadFile( hFile, &rhead, sizeof(recordhead_t), &nread, NULL);
if( strncmp( rhead.recordname, "MICROSOFT PIFEX", 15)) {
WINE_ERR("Invalid pif file: magic string not found\n");
return FALSE;
}
/* now process the following records */
while( 1) {
WORD nextrecord = rhead.posofnextrecord;
if( (nextrecord & 0x8000) ||
filesize.QuadPart <( nextrecord + sizeof(recordhead_t))) break;
if( !SetFilePointer( hFile, nextrecord, NULL, FILE_BEGIN) ||
!ReadFile( hFile, &rhead, sizeof(recordhead_t), &nread, NULL))
return FALSE;
if( !rhead.recordname[0]) continue; /* deleted record */
WINE_TRACE("reading record %s size %d next 0x%x\n",
wine_dbgstr_a(rhead.recordname), rhead.sizeofdata,
rhead.posofnextrecord );
if( !strncmp( rhead.recordname, "WINDOWS 386", 11)) {
found386rec = TRUE;
ReadFile( hFile, &pif386rec, sizeof(pif386rec_t), &nread, NULL);
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",
pif386rec.memmin, pif386rec.memmax,
pif386rec.emsmin, pif386rec.emsmax,
pif386rec.xmsmin, pif386rec.xmsmax);
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WINE_TRACE("386rec: option 0x%x memory 0x%x video 0x%x\n",
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pif386rec.optflags, pif386rec.memflags,
pif386rec.videoflags);
WINE_TRACE("386rec: optional parameters %s\n",
wine_dbgstr_a(pif386rec.optparams));
}
}
/* prepare the return data */
strncpy( progname, pifheader.program, sizeof(pifheader.program));
memcpy( title, pifheader.windowtitle, sizeof(pifheader.windowtitle));
title[ sizeof(pifheader.windowtitle) ] = '\0';
if( found386rec)
strncpy( optparams, pif386rec.optparams, sizeof( pif386rec.optparams));
else
strncpy( optparams, pifheader.optparams, sizeof(pifheader.optparams));
strncpy( startdir, pifheader.startdir, sizeof(pifheader.startdir));
*closeonexit = pifheader.hdrflags1 & 0x10;
*textmode = found386rec ? pif386rec.videoflags & 0x0010
: pifheader.hdrflags1 & 0x0002;
return TRUE;
}
/***********************************************************************
* pif_cmd
*
* execute a pif file.
*/
static VOID pif_cmd( char *filename, char *cmdline)
{
HANDLE hFile;
char progpath[MAX_PATH];
char buf[128];
char progname[64];
char title[31];
char optparams[64];
char startdir[64];
char *p;
int closeonexit;
int textmode;
if( (hFile = CreateFileA( filename, GENERIC_READ, FILE_SHARE_READ,
NULL, OPEN_EXISTING, 0, 0 )) == INVALID_HANDLE_VALUE)
{
WINE_ERR("open file %s failed\n", wine_dbgstr_a(filename));
return;
}
if( !read_pif_file( hFile, progname, title, optparams, startdir,
&closeonexit, &textmode)) {
WINE_ERR( "failed to read %s\n", wine_dbgstr_a(filename));
CloseHandle( hFile);
sprintf( buf, "%s\nInvalid file format. Check your pif file.",
filename);
MessageBoxA( NULL, buf, "16 bit DOS subsystem", MB_OK|MB_ICONWARNING);
SetLastError( ERROR_BAD_FORMAT);
return;
}
CloseHandle( hFile);
if( (p = strrchr( progname, '.')) && !strcasecmp( p, ".bat"))
WINE_FIXME(".bat programs in pif files are not supported.\n");
/* first change dir, so the search below can start from there */
if( startdir[0] && !SetCurrentDirectoryA( startdir)) {
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WINE_ERR("Cannot change directory %s\n", wine_dbgstr_a( startdir));
sprintf( buf, "%s\nInvalid startup directory. Check your pif file.",
filename);
MessageBoxA( NULL, buf, "16 bit DOS subsystem", MB_OK|MB_ICONWARNING);
}
/* search for the program */
if( !SearchPathA( NULL, progname, NULL, MAX_PATH, progpath, NULL )) {
sprintf( buf, "%s\nInvalid program file name. Check your pif file.",
filename);
MessageBoxA( NULL, buf, "16 bit DOS subsystem", MB_OK|MB_ICONERROR);
SetLastError( ERROR_FILE_NOT_FOUND);
return;
}
if( textmode)
if( AllocConsole())
SetConsoleTitleA( title) ;
/* if no arguments on the commandline, use them from the pif file */
if( !cmdline[0] && optparams[0])
cmdline = optparams;
/* FIXME: do something with:
* - close on exit
* - graphic modes
* - hot key's
* - etc.
*/
start_dos_exe( progpath, cmdline );
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}
/***********************************************************************
* build_command_line
*
* Build the command line of a process from the argv array.
* Copied from ENV_BuildCommandLine.
*/
static char *build_command_line( char **argv )
{
int len;
char *p, **arg, *cmd_line;
len = 0;
for (arg = argv; *arg; arg++)
{
int has_space,bcount;
char* a;
has_space=0;
bcount=0;
a=*arg;
if( !*a ) has_space=1;
while (*a!='\0') {
if (*a=='\\') {
bcount++;
} else {
if (*a==' ' || *a=='\t') {
has_space=1;
} else if (*a=='"') {
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/* doubling of '\' preceding a '"',
* plus escaping of said '"'
*/
len+=2*bcount+1;
}
bcount=0;
}
a++;
}
len+=(a-*arg)+1 /* for the separating space */;
if (has_space)
len+=2; /* for the quotes */
}
if (!(cmd_line = HeapAlloc( GetProcessHeap(), 0, len ? len + 1 : 2 )))
return NULL;
p = cmd_line;
*p++ = (len < 256) ? len : 255;
for (arg = argv; *arg; arg++)
{
int has_space,has_quote;
char* a;
/* Check for quotes and spaces in this argument */
has_space=has_quote=0;
a=*arg;
if( !*a ) has_space=1;
while (*a!='\0') {
if (*a==' ' || *a=='\t') {
has_space=1;
if (has_quote)
break;
} else if (*a=='"') {
has_quote=1;
if (has_space)
break;
}
a++;
}
/* Now transfer it to the command line */
if (has_space)
*p++='"';
if (has_quote) {
int bcount;
char* a;
bcount=0;
a=*arg;
while (*a!='\0') {
if (*a=='\\') {
*p++=*a;
bcount++;
} else {
if (*a=='"') {
int i;
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/* Double all the '\\' preceding this '"', plus one */
for (i=0;i<=bcount;i++)
*p++='\\';
*p++='"';
} else {
*p++=*a;
}
bcount=0;
}
a++;
}
} else {
strcpy(p,*arg);
p+=strlen(*arg);
}
if (has_space)
*p++='"';
*p++=' ';
}
if (len) p--; /* remove last space */
*p = '\0';
return cmd_line;
}
/***********************************************************************
* usage
*/
static void usage(void)
{
WINE_MESSAGE( "Usage: winevdm.exe [--app-name app.exe] command line\n\n" );
ExitProcess(1);
}
/***********************************************************************
* main
*/
int main( int argc, char *argv[] )
{
DWORD count;
HINSTANCE16 instance;
LOADPARAMS16 params;
WORD showCmd[2];
char buffer[MAX_PATH];
STARTUPINFOA info;
char *cmdline, *appname, **first_arg;
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char *p;
if (!argv[1]) usage();
if (!strcmp( argv[1], "--app-name" ))
{
if (!(appname = argv[2])) usage();
first_arg = argv + 3;
}
else
{
if (!SearchPathA( NULL, argv[1], ".exe", sizeof(buffer), buffer, NULL ))
{
WINE_MESSAGE( "winevdm: unable to exec '%s': file not found\n", argv[1] );
ExitProcess(1);
}
appname = buffer;
first_arg = argv + 1;
}
if (*first_arg) first_arg++; /* skip program name */
cmdline = build_command_line( first_arg );
if (WINE_TRACE_ON(winevdm))
{
int i;
WINE_TRACE( "GetCommandLine = '%s'\n", GetCommandLineA() );
WINE_TRACE( "appname = '%s'\n", appname );
WINE_TRACE( "cmdline = '%.*s'\n", cmdline[0], cmdline+1 );
for (i = 0; argv[i]; i++) WINE_TRACE( "argv[%d]: '%s'\n", i, argv[i] );
}
GetStartupInfoA( &info );
showCmd[0] = 2;
showCmd[1] = (info.dwFlags & STARTF_USESHOWWINDOW) ? info.wShowWindow : SW_SHOWNORMAL;
params.hEnvironment = 0;
params.cmdLine = MapLS( cmdline );
params.showCmd = MapLS( showCmd );
params.reserved = 0;
RestoreThunkLock(1); /* grab the Win16 lock */
/* some programs assume mmsystem is always present */
LoadLibrary16( "gdi.exe" );
LoadLibrary16( "user.exe" );
LoadLibrary16( "mmsystem.dll" );
if ((instance = LoadModule16( appname, &params )) < 32)
{
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if (instance == 11)
{
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/* first see if it is a .pif file */
if( ( p = strrchr( appname, '.' )) && !strcasecmp( p, ".pif"))
pif_cmd( appname, cmdline + 1);
else
{
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/* try DOS format */
/* loader expects arguments to be regular C strings */
start_dos_exe( appname, cmdline + 1 );
}
/* if we get back here it failed */
instance = GetLastError();
}
WINE_MESSAGE( "winevdm: can't exec '%s': ", appname );
switch (instance)
{
case 2: WINE_MESSAGE("file not found\n" ); break;
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case 11: WINE_MESSAGE("invalid program file\n" ); break;
default: WINE_MESSAGE("error=%d\n", instance ); break;
}
ExitProcess(instance);
}
/* wait forever; the process will be killed when the last task exits */
ReleaseThunkLock( &count );
Sleep( INFINITE );
return 0;
}