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