Date: Thu, 6 Feb 2003 13:55:12 -0800 From: Nathan Kinkade <nkinkade@dsl-only.net> To: FreeBSD-questions@FreeBSD.ORG Subject: Re: How to change Telnet Prelogin message? Message-ID: <20030206215512.GB538@sub21-156.member.dsl-only.net> In-Reply-To: <20030206194716.GC58257@happy-idiot-talk.infracaninophi> 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> <20030206194716.GC58257@happy-idiot-talk.infracaninophi>
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On Thu, Feb 06, 2003 at 07:47:16PM +0000, Matthew Seaman wrote:
> 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
Thanks Matthew. I did a bit of searching and couldn't find this problem
mentioned anywhere else. I have submitted a PR with id "docs/48018".
Nathan
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