add cast for splint

[andreas moroder]

Hello

would it be possible to add a cast to 
#define smb_buf(buf) (buf + smb_size + CVAL(buf,smb_wct)*2)

in smb_macros.h 
and change it to ?

#define smb_buf(buf) (buf + smb_size + (unsigned int ) CVAL(buf,smb_wct)*2)

This would avoid many warnings from splint and would not change the way the 
macro works.

Bye

Andreas