Xref: utzoo comp.sys.att:9068 unix-pc.general:5067
Path: utzoo!attcan!uunet!samsung!zaphod.mps.ohio-state.edu!sunybcs!oswego!news
From: ostroff@Oswego.EDU (Boyd Ostroff)
Newsgroups: comp.sys.att,unix-pc.general
Subject: Re: Who is "logged in" when you are running multiple login windows?
Keywords: unixpc, 3b1, multiple windows, login, knot, Gordian
Message-ID: <1990Mar22.152927.27934@oswego.Oswego.EDU>
Date: 22 Mar 90 15:29:27 GMT
References: <871@galaxia.Newport.RI.US> <19773@cs.yale.edu>
Reply-To: ostroff@oswego.Oswego.EDU (Boyd Ostroff)
Organization: Instructional Computing Center, SUNY at Oswego, Oswego, NY
Lines: 46

I'm still a little confused over the original problem here, but I've
also had problems telling who the user is when running multiple windows
on the system console.  (Note: I've been using a very simple UA replacement
which provides multiple 24x80 console windows in a small font for over a 
year without problems - it's called "wlogin" and I posted it some time ago -
write if interested).

Anyway, I wrote this little function to use as a getlogin() replacement and
include it here since it might be of use to someone.  It just finds out
your tty name then reads through the utmp file until it finds a matching
entry.

||| Boyd Ostroff - Tech Director - Dept of Theatre - SUNY Oswego 
||| Sys Admin - "The CallBoard" - (315) 947-6414 - 1200/2400 baud 
||| ostroff@oswego.oswego.edu - cboard!ostroff@oswego.oswego.edu 

------------------------- cut here ---------------------------
#include <sys/types.h>
#include <utmp.h>
#include <time.h>
#include <stdio.h>
#include <pwd.h>
#include <string.h>


char *get_login()           /* added this function to replace getlogin() */
{                           /* which doesn't work properly with multiple */
struct utmp *getutent();    /* windows on the Unix-PC system console */
struct utmp *u;             /* Boyd Ostroff (ostroff@oswego.oswego.edu) */
char *ttyname();
char *where;

    where = 1 + strrchr(ttyname(0), '/');
    setutent();
    while ((u = getutent()) != NULL)
        {
        if (u->ut_type == 7) 
            {
            if (strcmp(where, u->ut_line) ==0)
                {
                 return(u->ut_user);
                }
            }
        }
    endutent();
}