https://bugzilla.novell.com/show_bug.cgi?id=673793

https://bugzilla.novell.com/show_bug.cgi?id=673793#c1


--- Comment #1 from Horst Kakuschke <[email protected]> 2011-03-10 17:57:03 
UTC ---
After some debugging I might have found the culprit...

In mono-filemap.c the function

 MonoFileMap *
 mono_file_map_open (const char* name)
 {
    return (MonoFileMap *)fopen (name, "rb");
 }

gets called (by do_mono_image_open() in image.c) with an UTF8-encoded filename,
but fopen() needs an ANSI string.
This works fine as long as all characters can be encoded in one byte -
unfortunately this is not the case with certain national language characters.

So I changed mono_file_map_open() to use _wfopen() on Windows and assembly
loading works fine:

 MonoFileMap *
 mono_file_map_open (const char* name)
 {
+#ifdef WIN32
+    gunichar2 * wname = g_utf8_to_utf16(name, -1, 0, 0, 0);
+    MonoFileMap * result = (MonoFileMap *)_wfopen((wchar_t *)wname, L"rb");
+    g_free(wname);
+    return result;
+#else
     return (MonoFileMap *)fopen (name, "rb");
+#endif
 }

Please check this patch (diff file attached) - if approved, it would be great
to have it in the next release of mono.

Thanks,
Horst Kakuschke

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