Re: pkg/56936: posix_openpt(O_RDWR | O_NOCTTY) fails when configuring pkgsrc/x11/mlterm

[David Holland <dholland-pbugs%netbsd.org@localhost>]

The following reply was made to PR pkg/56936; it has been noted by GNATS.

From: David Holland <dholland-pbugs%netbsd.org@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: pkg/56936: posix_openpt(O_RDWR | O_NOCTTY) fails when
 configuring pkgsrc/x11/mlterm
Date: Sat, 10 Sep 2022 04:01:04 +0000

 On Wed, Sep 07, 2022 at 11:00:03PM +0000, Joerg Sonnenberger wrote:
  >  >  Inside a sandbox, openpty(3) also doesn't work, as I'd noticed since
  >  >  script(1) fails to work in that context.
  >  >  
  >  >  script: openpty: No such file or directory
  >  >  
  >  >    22686      1 script   CALL  open(0x6fd6ee21228c,2,0)
  >  >    22686      1 script   NAMI  "/dev/ptm"
  >  >    22686      1 script   RET   open 4
  >  >    22686      1 script   CALL  ioctl(4,TIOCPTMGET,0x7f7fffd49b00)
  >  >    22686      1 script   RET   ioctl -1 errno 45 Operation not supported
  >  
  >  That means your sandbox is not configured correctly. Do you have
  >  /dev/pts null-mounted in the chroot?
 
 Openpty falls back to opening pty devices, so it should work
 regardless of whether /dev/pts is present. Unless you have no ptys at
 all in the sandbox, and that does seem like a configuration error.
 
 -- 
 David A. Holland
 dholland%netbsd.org@localhost