Date: Sat, 19 Oct 1996 00:56:08 +0200 From: Luigi Rizzo <luigi@iet.unipi.it> To: FreeBSD-gnats-submit@freebsd.org Subject: misc/1838: getttyent() arbitrary 100 char limit Message-ID: <199610182256.AAA00617@prova.iet.unipi.it> Resent-Message-ID: <199610182300.QAA28994@freefall.freebsd.org>
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>Number: 1838
>Category: misc
>Synopsis: getttyent() arbitrary 100 char limit
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Oct 18 16:00:02 PDT 1996
>Last-Modified:
>Originator: Luigi Rizzo
>Organization:
>Release: any ?
>Environment:
>Description:
getttyent() has a limit of 100 char for input lines. This
causes problems when there are long lines in /etc/ttys, e.g.
when using mgetty with chat strings supplied on the command
line.
Worst thing is that the line is dropped silently.
>How-To-Repeat:
use a line > 100 chars in /etc/ttys
>Fix:
in libc/gen/getttyent.c, line 66, change the definition of
MAXLINELENGTH to a larger value, e.g. 256 or 512.
Also, it would be probably worth mentioning the existence of
this limitation in /etc/ttys, e.g. add the following:
# IMPORTANT: lines must be shorter than XXX chars
Luigi
====================================================================
Luigi Rizzo Dip. di Ingegneria dell'Informazione
email: luigi@iet.unipi.it Universita' di Pisa
tel: +39-50-568533 via Diotisalvi 2, 56126 PISA (Italy)
fax: +39-50-568522 http://www.iet.unipi.it/~luigi/
====================================================================
>Audit-Trail:
>Unformatted:
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