dlls/win32s/w32sys.c

   1 /*
   2  * W32SYS
   3  * helper DLL for Win32s
   4  *
   5  * Copyright (c) 1996 Anand Kumria
   6  */
   7
   8 #include <unistd.h>
   9
  10 #include "windef.h"
  11 #include "wine/windef16.h"
  12 #include "wine/winbase16.h"
  13 #include "debugtools.h"
  14
  15 DEFAULT_DEBUG_CHANNEL(dll);
  16
  17 typedef struct
  18 {
  19     BYTE   bMajor;
  20     BYTE   bMinor;
  21     WORD   wBuildNumber;
  22     BOOL16 fDebug;
  23 } WIN32SINFO, *LPWIN32SINFO;
  24
  25 /***********************************************************************
  26  *           GetWin32sInfo   (W32SYS.12)
  27  * RETURNS
  28  *  0 on success, 1 on failure
  29  */
  30 WORD WINAPI GetWin32sInfo16(
  31         LPWIN32SINFO lpInfo     /* [out] Win32S special information */
  32 ) {
  33     lpInfo->bMajor = 1;
  34     lpInfo->bMinor = 3;
  35     lpInfo->wBuildNumber = 0;
  36     lpInfo->fDebug = FALSE;
  37
  38     return 0;
  39 }
  40
  41 /***********************************************************************
  42  *            GetW32SysVersion16  (W32SYS.5)
  43  */
  44 WORD WINAPI GetW32SysVersion16(void)
  45 {
  46     return 0x100;
  47 }
  48
  49 /***********************************************************************
  50  *           GetPEResourceTable   (W32SYS.7)
  51  * retrieves the resourcetable from the passed filedescriptor
  52  * RETURNS
  53  *      dunno what.
  54  */
  55 WORD WINAPI GetPEResourceTable16(
  56         HFILE16 hf              /* [in] filedescriptor to opened executeable */
  57 ) {
  58         return 0;
  59 }
  60
  61 /***********************************************************************
  62  *           LoadPeResource
  63  */
  64 DWORD WINAPI LoadPeResource16(WORD x,SEGPTR y) {
  65         FIXME("(0x%04x,0x%08lx),stub!\n",x,y);
  66         return 0;
  67 }
  68
  69
  70 /**********************************************************************
  71  *              IsPeFormat16            (W32SYS.2)
  72  * Checks the passed filename if it is a PE format executeable
  73  * RETURNS
  74  *  TRUE, if it is.
  75  *  FALSE if not.
  76  */
  77 BOOL16 WINAPI IsPeFormat16( LPSTR fn,      /* [in] filename to executeable */
  78                             HFILE16 hf16 ) /* [in] open file, if filename is NULL */
  79 {
  80     BOOL16 ret = FALSE;
  81     IMAGE_DOS_HEADER mzh;
  82     OFSTRUCT ofs;
  83     DWORD xmagic;
  84     HFILE hf;
  85
  86     if (fn) hf = OpenFile(fn,&ofs,OF_READ);
  87     else hf = DosFileHandleToWin32Handle( hf16 );
  88     if (hf == HFILE_ERROR) return FALSE;
  89     _llseek(hf,0,SEEK_SET);
  90     if (sizeof(mzh)!=_lread(hf,&mzh,sizeof(mzh))) goto done;
  91     if (mzh.e_magic!=IMAGE_DOS_SIGNATURE) goto done;
  92     _llseek(hf,mzh.e_lfanew,SEEK_SET);
  93     if (sizeof(DWORD)!=_lread(hf,&xmagic,sizeof(DWORD))) goto done;
  94     ret = (xmagic == IMAGE_NT_SIGNATURE);
  95  done:
  96     if (fn) _lclose(hf);
  97     return ret;
  98 }