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# Documentation at the __END__ |
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# -*-cperl-*- |
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package IO::Tty; |
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use strict; |
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use warnings; |
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use IO::Handle; |
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use IO::File; |
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use IO::Tty::Constant; |
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use Carp; |
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require POSIX; |
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require DynaLoader; |
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use vars qw(@ISA $VERSION $XS_VERSION $CONFIG $DEBUG); |
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$VERSION = '1.16'; |
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$XS_VERSION = "1.16"; |
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@ISA = qw(IO::Handle); |
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eval { local $^W = 0; undef local $SIG{__DIE__}; require IO::Stty }; |
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push @ISA, "IO::Stty" if ( not $@ ); # if IO::Stty is installed |
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BOOT_XS: { |
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# If I inherit DynaLoader then I inherit AutoLoader and I DON'T WANT TO |
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require DynaLoader; |
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# DynaLoader calls dl_load_flags as a static method. |
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*dl_load_flags = DynaLoader->can('dl_load_flags'); |
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do { |
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defined(&bootstrap) |
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? \&bootstrap |
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: \&DynaLoader::bootstrap; |
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} |
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->(__PACKAGE__); |
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} |
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sub import { |
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IO::Tty::Constant->export_to_level( 1, @_ ); |
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} |
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sub open { |
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my ( $tty, $dev, $mode ) = @_; |
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IO::File::open( $tty, $dev, $mode ) |
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or return undef; |
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$tty->autoflush; |
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1; |
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} |
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sub clone_winsize_from { |
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my ( $self, $fh ) = @_; |
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croak "Given filehandle is not a tty in clone_winsize_from, called" |
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if not POSIX::isatty($fh); |
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return 1 if not POSIX::isatty($self); # ignored for master ptys |
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my $winsize = " " x 1024; # preallocate memory |
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ioctl( $fh, &IO::Tty::Constant::TIOCGWINSZ, $winsize ) |
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and ioctl( $self, &IO::Tty::Constant::TIOCSWINSZ, $winsize ) |
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and return 1; |
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warn "clone_winsize_from: error: $!" if $^W; |
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return undef; |
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} |
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# ioctl() doesn't tell us how long the structure is, so we'll have to trim it |
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# after TIOCGWINSZ |
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my $SIZEOF_WINSIZE = length IO::Tty::pack_winsize( 0, 0, 0, 0 ); |
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sub get_winsize { |
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1
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my $self = shift; |
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1
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ioctl( $self, IO::Tty::Constant::TIOCGWINSZ(), my $winsize = q<> ) |
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or croak "Cannot TIOCGWINSZ - $!"; |
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1
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substr( $winsize, $SIZEOF_WINSIZE ) = ""; |
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1
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return IO::Tty::unpack_winsize($winsize); |
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} |
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sub set_winsize { |
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my $self = shift; |
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my $winsize = IO::Tty::pack_winsize(@_); |
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ioctl( $self, IO::Tty::Constant::TIOCSWINSZ(), $winsize ) |
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or croak "Cannot TIOCSWINSZ - $!"; |
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} |
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sub set_raw($) { |
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3
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3
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0
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3709
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require POSIX; |
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3
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my $self = shift; |
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3
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return 1 if not POSIX::isatty($self); |
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3
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my $ttyno = fileno($self); |
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3
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my $termios = new POSIX::Termios; |
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unless ($termios) { |
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warn "set_raw: new POSIX::Termios failed: $!"; |
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return undef; |
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} |
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3
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unless ( $termios->getattr($ttyno) ) { |
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0
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warn "set_raw: getattr($ttyno) failed: $!"; |
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return undef; |
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} |
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3
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$termios->setiflag(0); |
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3
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$termios->setoflag(0); |
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3
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$termios->setlflag(0); |
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3
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$termios->setcc( &POSIX::VMIN, 1 ); |
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$termios->setcc( &POSIX::VTIME, 0 ); |
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unless ( $termios->setattr( $ttyno, &POSIX::TCSANOW ) ) { |
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warn "set_raw: setattr($ttyno) failed: $!"; |
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return undef; |
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} |
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3
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return 1; |
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} |
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1; |
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__END__ |