Path: utzoo!utgpu!attcan!uunet!mcvax!hp4nl!botter!star.cs.vu.nl!maart
From: maart@cs.vu.nl (Maarten Litmaath)
Newsgroups: comp.unix.questions
Subject: Re: Login shell?
Message-ID: <1623@solo10.cs.vu.nl>
Date: 4 Nov 88 15:13:51 GMT
References: <3ed799bc.103e8@hi-csc.UUCP> <13851@mimsy.UUCP> <511@imec.UUCP> <25721@bu-cs.BU.EDU> <10791@ulysses.homer.nj.att.com> <1217@vsedev.VSE.COM>
Reply-To: maart@cs.vu.nl (Maarten Litmaath)
Organization: VU Informatica, Amsterdam
Lines: 21

In article <1217@vsedev.VSE.COM> logan@vsedev.VSE.COM (James Logan III) writes:
\... If you just want to find out what if the current
\shell is indeed the shell spawned by init(1M) (via getty(1M), login(1)),
\then just write a simple C program like this:
\--------
\#include <stdio.h>
\
\main()
\{
\	if (getppid() == getpgrp())
\		exit(0);
\	exit(1);
\}

1)
	Why #include <stdio.h>?
2)
	This scheme won't work for rsh/rlogin.
-- 
George Bush:                          |Maarten Litmaath @ VU Amsterdam:
             Capt. Slip of the Tongue |maart@cs.vu.nl, mcvax!botter!maart