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From: mikel@codas.ATT.UUCP (Mikel Manitius)
Newsgroups: net.unix,net.unix-wizards
Subject: Re: Not a typewriter
Message-ID: <542@codas.ATT.UUCP>
Date: Wed, 11-Jun-86 13:09:57 EDT
Article-I.D.: codas.542
Posted: Wed Jun 11 13:09:57 1986
Date-Received: Sun, 15-Jun-86 01:47:55 EDT
References: <1683@homxb.UUCP>
Organization: AT&T Information Systems, Altamonte Springs, FL
Lines: 17
Xref: watmath net.unix:8119 net.unix-wizards:18363

> What does the sys_errlist message 'Not a typewriter' *really* mean??

Errno 25 is usually generated when a program tries to execute an
ioctl command that expects the file descriptor to be a terminal.
(ie: you can't set the baud rate on a file).

However I have also noticed that some aplications aren't very
carefull when they use errno. For example, Informix may give
you this message if it cannot open a database file because it
does not exist!

I think there may be one or two system calls that will alter
errno to be 25, without returning a non-zero value, when in
fact there was no error.
-- 
			Mikel Manitius @ AT&T-IS Altamonte Springs, FL
			...{seismo!akgua|ihnp4|cbosgd}!codas!mikel.ATT.UUCP