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[ NAME ]	[ SIZE ]	[ PERM ]	[ DATE ]	[ ACTN ]
+FILE +DIR
Tty	dir	drwxr-xr-x	2023-04-05 00:02	R D
Pty.pm	8.505 KB	-rw-r--r--	2010-10-11 18:08	R E G D
Tty.pm	7.35 KB	-rw-r--r--	2010-10-11 18:09	R E G D
REQUEST EXIT

# Documentation at the __END__ package IO::Pty; use strict; use Carp; use IO::Tty qw(TIOCSCTTY TCSETCTTY TIOCNOTTY); use IO::File; require POSIX; use vars qw(@ISA $VERSION); $VERSION = '1.10'; # keep same as in Tty.pm @ISA = qw(IO::Handle); eval { local $^W = 0; undef local $SIG{__DIE__}; require IO::Stty }; push @ISA, "IO::Stty" if (not $@); # if IO::Stty is installed sub new { my ($class) = $_[0] || "IO::Pty"; $class = ref($class) if ref($class); @_ <= 1 or croak 'usage: new $class'; my ($ptyfd, $ttyfd, $ttyname) = pty_allocate(); croak "Cannot open a pty" if not defined $ptyfd; my $pty = $class->SUPER::new_from_fd($ptyfd, "r+"); croak "Cannot create a new $class from fd $ptyfd: $!" if not $pty; $pty->autoflush(1); bless $pty => $class; my $slave = IO::Tty->new_from_fd($ttyfd, "r+"); croak "Cannot create a new IO::Tty from fd $ttyfd: $!" if not $slave; $slave->autoflush(1); ${*$pty}{'io_pty_slave'} = $slave; ${*$pty}{'io_pty_ttyname'} = $ttyname; ${*$slave}{'io_tty_ttyname'} = $ttyname; return $pty; } sub ttyname { @_ == 1 or croak 'usage: $pty->ttyname();'; my $pty = shift; ${*$pty}{'io_pty_ttyname'}; } sub close_slave { @_ == 1 or croak 'usage: $pty->close_slave();'; my $master = shift; if (exists ${*$master}{'io_pty_slave'}) { close ${*$master}{'io_pty_slave'}; delete ${*$master}{'io_pty_slave'}; } } sub slave { @_ == 1 or croak 'usage: $pty->slave();'; my $master = shift; if (exists ${*$master}{'io_pty_slave'}) { return ${*$master}{'io_pty_slave'}; } my $tty = ${*$master}{'io_pty_ttyname'}; my $slave = new IO::Tty; $slave->open($tty, O_RDWR | O_NOCTTY) || croak "Cannot open slave $tty: $!"; return $slave; } sub make_slave_controlling_terminal { @_ == 1 or croak 'usage: $pty->make_slave_controlling_terminal();'; my $self = shift; local(*DEVTTY); # loose controlling terminal explicitely if (defined TIOCNOTTY) { if (open (\*DEVTTY, "/dev/tty")) { ioctl( \*DEVTTY, TIOCNOTTY, 0 ); close \*DEVTTY; } } # Create a new 'session', lose controlling terminal. if (not POSIX::setsid()) { warn "setsid() failed, strange behavior may result: $!\r\n" if $^W; } if (open(\*DEVTTY, "/dev/tty")) { warn "Could not disconnect from controlling terminal?!\n" if $^W; close \*DEVTTY; } # now open slave, this should set it as controlling tty on some systems my $ttyname = ${*$self}{'io_pty_ttyname'}; my $slv = new IO::Tty; $slv->open($ttyname, O_RDWR) or croak "Cannot open slave $ttyname: $!"; if (not exists ${*$self}{'io_pty_slave'}) { ${*$self}{'io_pty_slave'} = $slv; } else { $slv->close; }