i386/71893: isatty(3)+errno undocumented

Sat Sep 18 17:40:24 PDT 2004

>Number:         71893
>Category:       i386
>Synopsis:       isatty(3)+errno undocumented
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          doc-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Sep 19 00:40:23 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator:     Joe Public
>Release:        i386 FreeBSD 4.10-RELEASE
>Organization:
no org
>Environment:
FreeBSD ai1.anchorage.mtaonline.net 4.10-RELEASE FreeBSD 4.10-RELEASE #0: Mon Jul  5 18:00:22 AKDT 2004     root@:/usr/src/sys/compile/MYKERN  i386

>Description:
isatty(3) sets errno=25 on failure - undocumented!
>How-To-Repeat:
test isatty() on a device that is not a tty, check errno.
>Fix:
either it shouldn't set errno, or it should say so in the
                manpage.
>Release-Note:
>Audit-Trail:
>Unformatted: