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[screen-devel] [bug #52248] Screen doesn't release pty TIOCEXCL on quit

From: anonymous
Subject: [screen-devel] [bug #52248] Screen doesn't release pty TIOCEXCL on quit
Date: Wed, 18 Oct 2017 19:19:12 -0400 (EDT)
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36


                 Summary: Screen doesn't release pty TIOCEXCL on quit
                 Project: GNU Screen
            Submitted by: None
            Submitted on: Wed 18 Oct 2017 11:19:11 PM UTC
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
                 Release: None
           Fixed Release: None
         Planned Release: None
           Work Required: None



In pty.c, ioctl TIOCEXCL takes exclusive control of the pty. Screen should
call ioctl TIOCNXCL to release that control on close. This manifests as ptys
getting mysteriously broken after using them with screen.


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