Xref: utzoo comp.unix.aix:2216 comp.unix.questions:26110 comp.unix.sysv286:30
Path: utzoo!attcan!uunet!wuarchive!udel!haven!adm!smoke!gwyn
From: gwyn@smoke.BRL.MIL (Doug Gwyn)
Newsgroups: comp.unix.aix,comp.unix.questions,comp.unix.sysv286
Subject: Re: Porting TCSH to RS/6000 w/ AIX 3
Message-ID: <14083@smoke.BRL.MIL>
Date: 10 Oct 90 18:35:12 GMT
References: <1990Oct8.185748.15133@oswego.Oswego.EDU> <1990Oct9.052828.11184@panews>
Followup-To: comp.unix.aix
Organization: U.S. Army Ballistic Research Laboratory, APG, MD.
Lines: 10

In article <1990Oct9.052828.11184@panews> steve@ibmsupt.UUCP (Steve DeJarnett) writes:
>	Probably something like 4 times per input line, right??  Actually, I 
>think it's any 4 characters, but return is always the most common candidate.

4 is a significant "magic number"; it's the value of the default EOT
character.  System V multiplexes the EOT character in the termio structure
with the non-canonicalizing VMIN field.  If whoever ported the software
failed to take this into account, they probably left the EOF character
in the termio field when switching to non-canonicalizing mode.  The bug
should be easily locatable in the source code..