Safe netbios characters

[Jason Holland]

hello,
  i appologize if this post is inappropriate, but i was unable to get an 
answer on samba users list.  i'm trying to change the source to samba to 
allow a ! in the usernames.  would this code modification be the only one 
needed to accomplish this???  if not, where else would i look??

*** reply.c     Thu Jan 17 13:49:00 2002
--- reply-1.c   Thu Jan 17 13:55:11 2002
***************
*** 857,863 ****
    }
  
    /* don't allow strange characters in usernames or domains */
-   alpha_strcpy(user, user, ". _-$", sizeof(user));
+   alpha_strcpy(user, user, "!. _-$", sizeof(user));
    alpha_strcpy(domain, domain, ". _-", sizeof(domain));
    if (strstr(user, "..") || strstr(domain,"..")) {
          return ERROR_BOTH(NT_STATUS_LOGON_FAILURE,ERRSRV,ERRbadpw);


anyone able to help out?  please cc me as i'm not subscribed to the list, 
or cc the samba users list.  thank for your help in this matter.

Jason