Ethereal 0.99.0 epan/strutil.c - utf_8to16 bug

I believe the utf_8to16 function in epan/strutil.c
has a bug.  I've experienced access violations
with version 0.99.0 when starting a capture that
point to this function.

I performed tests using Windows XP SP2 and
used the gflags program to enable page heap
checking on ethereal.exe.

The fault actually occurs in the Win32 function
MultiByteToWideChar, but occurs because this
code:

   utf16buf[idx] = g_realloc(utf16buf[idx], utf16buf_len[idx]);

doesn't account for the sizeof(wchar_t) when allocating
memory, resulting in an access violation.  The buffer
passed to MultiByteToWideChar is too small.


Joe Hagen