From: "Serge E. Hallyn" <serge.hallyn-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
To: Michael Kerrisk <mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: "Eric W. Biederman"
<ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>,
linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Sukadev Bhattiprolu
<sukadev-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
Subject: grantpt and ptsname man pages
Date: Thu, 29 Sep 2011 19:03:07 -0500 [thread overview]
Message-ID: <20110930000307.GA10103@sergelap> (raw)
Hi,
near as i can tell (from tests and code), ptsname and grantpt both
require the passed-in fd to exist in /dev/pts. So if you pass in
an fd from a newinstance devpts mounted elsewhere things can go
wrong. Particularly if the passed-in fd is for /other/dev/pts/0
and /dev/pts/0 does not exist, then grantpt and ptsname will return
-ENOENT.
The manpage should probably mention that. I've not written anything
for it yet. (Willing to, but not until this weekend I'm afraid.)
thanks,
-serge
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next reply other threads:[~2011-09-30 0:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-30 0:03 Serge E. Hallyn [this message]
2011-09-30 16:39 ` grantpt and ptsname man pages Michael Kerrisk
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