Date: Thu, 6 Feb 2003 19:47:16 +0000 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: FreeBSD-questions@FreeBSD.ORG Subject: Re: How to change Telnet Prelogin message? Message-ID: <20030206194716.GC58257@happy-idiot-talk.infracaninophi> In-Reply-To: <20030206192321.GA538@sub21-156.member.dsl-only.net> References: <1461.192.168.1.10.1044505050.squirrel@email.unixhideout.com> <20030206044512.GR87743@sub21-156.member.dsl-only.net> <20030206092721.GB53194@happy-idiot-talk.infracaninophi> <20030206192321.GA538@sub21-156.member.dsl-only.net>
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On Thu, Feb 06, 2003 at 11:23:21AM -0800, Nathan Kinkade wrote:
> I guess I wasn't paying close enough attention to the original posters
> question. I somehow missed the "pre". In any case, all this has
> prompted me to play around with pre-login messages. Using gettytab I
> can alter the pre-login message for telnet sessions by changing the 'im'
> capability in gettytab, but for the life of me I can't seem to get
> telnetd to recognize the 'if' capability. The console responds to both,
> but telnetd seems to ignore 'if'. The perms on /etc/issue are 644. I
> don't run inetd, but just for experiment I uncommented telnetd and
> launched and inetd for testing. Can anyone explain why telnetd might
> ignore the 'if' capability specified in the 'default' heading of
> gettytab? The telnetd man page clearly states that if 'if' is present
> it will override 'im'.
Interesting. The source code seems pretty clear in that it only looks
at the 'im' property:
.../src/libexec/telnetd/telnetd.c at about line 770
/*
* Show banner that getty never gave.
*
* We put the banner in the pty input buffer. This way, it
* gets carriage return null processing, etc., just like all
* other pty --> client data.
*/
if (getent(defent, "default") == 1) {
char *cp=defstrs;
HE = Getstr("he", &cp);
HN = Getstr("hn", &cp);
IM = Getstr("im", &cp);
if (HN && *HN)
(void) strlcpy(host_name, HN, sizeof(host_name));
if (IM == 0)
IM = strdup("");
} else {
IM = strdup(DEFAULT_IM);
HE = 0;
}
Looks like it's time to send-pr.
Cheers,
Matthew
--
Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks
Savill Way
PGP: http://www.infracaninophile.co.uk/pgpkey Marlow
Tel: +44 1628 476614 Bucks., SL7 1TH UK
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