Kirill K. Smirnov : winhelp: winhelp >3. 0 files always use 0x4000 as a divisor in TOPICPOS regardless of DecompressSize .

[Alexandre Julliard]

Module: wine
Branch: master
Commit: ae534def5400a7da2ef18bfff34addb6bbb81bfc
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=ae534def5400a7da2ef18bfff3...

Author: Kirill K. Smirnov <lich(a)math.spbu.ru>
Date:   Wed Dec  5 00:41:07 2007 +0300

winhelp: winhelp >3.0 files always use 0x4000 as a divisor in TOPICPOS regardless of DecompressSize.

---

 programs/winhelp/hlpfile.c |   12 ++++++++++--
 1 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/programs/winhelp/hlpfile.c b/programs/winhelp/hlpfile.c
index f9013e6..cd14193 100644
--- a/programs/winhelp/hlpfile.c
+++ b/programs/winhelp/hlpfile.c
@@ -354,8 +354,16 @@ static BOOL HLPFILE_DoReadHlpFile(HLPFILE *hlpfile, LPCSTR lpszPath)
     {
         BYTE*   end;
 
-        index  = (ref - 0x0C) / hlpfile->dsize;
-        offset = (ref - 0x0C) % hlpfile->dsize;
+        if (hlpfile->version <= 16)
+        {
+            index  = (ref - 0x0C) / hlpfile->dsize;
+            offset = (ref - 0x0C) % hlpfile->dsize;
+        }
+        else
+        {
+            index  = (ref - 0x0C) >> 14;
+            offset = (ref - 0x0C) & 0x3FFF;
+        }
 
         if (hlpfile->version <= 16 && index != old_index && index != 0)
         {