Date: Sun, 14 Jul 2013 23:37:34 +0200 From: Jilles Tjoelker <jilles@stack.nl> To: Eugene Grosbein <eugen@grosbein.net> Cc: FreeBSD Stable <freebsd-stable@FreeBSD.org> Subject: Re: script(1), cfmakeraw() and Ctrl-Z Message-ID: <20130714213734.GB30708@stack.nl> In-Reply-To: <51E2DC6B.2090605@grosbein.net> References: <51E2DC6B.2090605@grosbein.net>
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On Mon, Jul 15, 2013 at 12:14:19AM +0700, Eugene Grosbein wrote: > I've noted that commands like "script -qa /tmp/log sleep 100" > cannot be suspended with Ctrl-Z keys. The reason is call to cfmakeraw() > in script.c - if I comment it out, Ctrl-Z starts to work as expected. > portupgrade uses script(1) so build/install process cannot be suspended too. > (I'm building libreoffice-4.04 now) > The function cfmakeraw() is used since CVS revision 1.1 when script > was imported with other "BSD 4.4 Lite Usr.bin Sources". > Is cfmakeraw() really needed? The cfmakeraw() call ensures that the processes running within script get all control characters. For example, you can suspend a job in the inner shell using Ctrl+Z. This indeed makes it impossible to suspend script itself. -- Jilles Tjoelker
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