dlls/win32s/w32sys.c

   1 /*
   2  * W32SYS
   3  * helper DLL for Win32s
   4  *
   5  * Copyright (c) 1996 Anand Kumria
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include "config.h"
  23
  24 #ifdef HAVE_UNISTD_H
  25 # include <unistd.h>
  26 #endif
  27
  28 #include "windef.h"
  29 #include "wine/windef16.h"
  30 #include "wine/winbase16.h"
  31 #include "wine/debug.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(dll);
  34
  35 typedef struct
  36 {
  37     BYTE   bMajor;
  38     BYTE   bMinor;
  39     WORD   wBuildNumber;
  40     BOOL16 fDebug;
  41 } WIN32SINFO, *LPWIN32SINFO;
  42
  43 /***********************************************************************
  44  *           GetWin32sInfo   (W32SYS.12)
  45  * RETURNS
  46  *  0 on success, 1 on failure
  47  */
  48 WORD WINAPI GetWin32sInfo16(
  49         LPWIN32SINFO lpInfo     /* [out] Win32S special information */
  50 ) {
  51     lpInfo->bMajor = 1;
  52     lpInfo->bMinor = 3;
  53     lpInfo->wBuildNumber = 0;
  54     lpInfo->fDebug = FALSE;
  55
  56     return 0;
  57 }
  58
  59 /***********************************************************************
  60  *            GetW32SysVersion  (W32SYS.5)
  61  */
  62 WORD WINAPI GetW32SysVersion16(void)
  63 {
  64     return 0x100;
  65 }
  66
  67 /***********************************************************************
  68  *           GetPEResourceTable   (W32SYS.7)
  69  * retrieves the resourcetable from the passed filedescriptor
  70  * RETURNS
  71  *      dunno what.
  72  */
  73 WORD WINAPI GetPEResourceTable16(
  74         HFILE16 hf              /* [in] filedescriptor to opened executeable */
  75 ) {
  76         return 0;
  77 }
  78
  79 /***********************************************************************
  80  *           LoadPeResource (W32SYS.11)
  81  */
  82 DWORD WINAPI LoadPeResource16(WORD x,SEGPTR y) {
  83         FIXME("(0x%04x,0x%08lx),stub!\n",x,y);
  84         return 0;
  85 }
  86
  87
  88 /**********************************************************************
  89  *              IsPeFormat              (W32SYS.2)
  90  * Checks the passed filename if it is a PE format executeable
  91  * RETURNS
  92  *  TRUE, if it is.
  93  *  FALSE if not.
  94  */
  95 BOOL16 WINAPI IsPeFormat16( LPSTR fn,      /* [in] filename to executeable */
  96                             HFILE16 hf16 ) /* [in] open file, if filename is NULL */
  97 {
  98     BOOL16 ret = FALSE;
  99     IMAGE_DOS_HEADER mzh;
 100     OFSTRUCT ofs;
 101     DWORD xmagic;
 102     HFILE hf;
 103
 104     if (fn) hf = OpenFile(fn,&ofs,OF_READ);
 105     else hf = (HFILE)DosFileHandleToWin32Handle( hf16 );
 106     if (hf == HFILE_ERROR) return FALSE;
 107     _llseek(hf,0,SEEK_SET);
 108     if (sizeof(mzh)!=_lread(hf,&mzh,sizeof(mzh))) goto done;
 109     if (mzh.e_magic!=IMAGE_DOS_SIGNATURE) goto done;
 110     _llseek(hf,mzh.e_lfanew,SEEK_SET);
 111     if (sizeof(DWORD)!=_lread(hf,&xmagic,sizeof(DWORD))) goto done;
 112     ret = (xmagic == IMAGE_NT_SIGNATURE);
 113  done:
 114     if (fn) _lclose(hf);
 115     return ret;
 116 }