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Path: utzoo!watmath!clyde!cbosgd!cbdkc1!desoto!packard!edsel!bentley!hoxna!houxm!vax135!cornell!uw-beaver!tektronix!reed!mikec
From: mikec@reed.UUCP (Michael Cooper)
Newsgroups: net.unix-wizards
Subject: talk(1), windows & getlogin()
Message-ID: <1491@reed.UUCP>
Date: Wed, 8-May-85 14:19:58 EDT
Article-I.D.: reed.1491
Posted: Wed May  8 14:19:58 1985
Date-Received: Fri, 10-May-85 01:00:48 EDT
Reply-To: mikec@reed.UUCP (Michael Cooper)
Organization: Tabr Sietch - Portland, Oregon
Lines: 32


We have several windowing packages here that use psuedo tty's.  They work
just great except when it comes to talk(1).  Talk complains that it does
not know who you are when you using a window manager on a pty.  It fails
because of these lines from the talk source (file: get_names.c):

	    my_name = getlogin();
	    if (my_name == NULL) {
		printf("You don't exist. Go away.\n");
		exit(-1);
	    }

Without looking at the code for getlogin(), it seems that  getlogin() 
looks up your tty in /etc/utmp.  A simple fix would be to put a call in for
getpwuid(getuid()) if getlogin() == NULL.  A simple task.  I'm supprised
the people at  Bezerkeley (the place where one of the window managers comes
from - the program being a pre-release version of window(1) from 4.3bsd)
would not even think of this.  I can only hope that in 4.3bsd it will be
fixed.



-- 
					Michael Cooper

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