python类ttyname()的实例源码

master.py 文件源码 项目:mitogen 作者: dw 项目源码 文件源码 阅读 35 收藏 0 点赞 0 评论 0
def tty_create_child(*args):
    master_fd, slave_fd = os.openpty()
    disable_echo(master_fd)
    disable_echo(slave_fd)

    pid = os.fork()
    if not pid:
        mitogen.core.set_block(slave_fd)
        os.dup2(slave_fd, 0)
        os.dup2(slave_fd, 1)
        os.dup2(slave_fd, 2)
        close_nonstandard_fds()
        os.setsid()
        os.close(os.open(os.ttyname(1), os.O_RDWR))
        os.execvp(args[0], args)

    os.close(slave_fd)
    LOG.debug('tty_create_child() child %d fd %d, parent %d, cmd: %s',
              pid, master_fd, os.getpid(), Argv(args))
    return pid, master_fd
hdlc_to_ax25.py 文件源码 项目:GroundStation 作者: ClydeSpace-GroundStation 项目源码 文件源码 阅读 18 收藏 0 点赞 0 评论 0
def __init__(self):
        gr.sync_block.__init__(self,
                               name="hdlc_to_ax25",
                               in_sig=None,
                               out_sig=None)

        (self.pty_master, self.pty_slave) = pty.openpty()
        tty = os.ttyname(self.pty_slave)

        if os.path.islink('/tmp/kiss_pty'):
            os.unlink('/tmp/kiss_pty')
        os.symlink(tty, '/tmp/kiss_pty')

        print 'KISS PTY is: /tmp/kiss_pty (%s)' % os.ttyname(self.pty_slave)

        self.message_port_register_in(pmt.intern('in'))
        self.set_msg_handler(pmt.intern('in'), self.handle_msg)
        self.count = 0
        self.dropped = 0
pty.py 文件源码 项目:python-vterm 作者: o11c 项目源码 文件源码 阅读 28 收藏 0 点赞 0 评论 0
def __init__(self, args, *, size=core.STANDARD_SIZE, cmd=None, env=None, callbacks_cls=PtyCallbacks, __os_close=os.close, **kwargs):
        self._master_fd = -1
        super().__init__(size)
        master_fd, slave_fd = os.openpty()
        try:
            self._slave_name = os.ttyname(slave_fd)
            _spawn(cmd, args, env, fds={0: slave_fd, 1: slave_fd, 2: slave_fd}, tty=slave_fd)

            self._master_fd = master_fd
            master_fd = -1
        finally:
            __os_close(slave_fd)
            if master_fd != -1:
                __os_close(master_fd)

        # configure some sensible defaults
        callbacks = callbacks_cls(self, **kwargs)
        self.set_callbacks(callbacks)
        self.callbacks = callbacks
__init__.py 文件源码 项目:binja_dynamics 作者: nccgroup 项目源码 文件源码 阅读 22 收藏 0 点赞 0 评论 0
def __init__(self, message_q):
        QThread.__init__(self)
        self.messages = message_q
        # Only the inferior process need use the slave file descriptor
        self.master, self.slave = pty.openpty()
        self.tty = os.ttyname(self.slave)
unix.py 文件源码 项目:hostapd-mana 作者: adde88 项目源码 文件源码 阅读 24 收藏 0 点赞 0 评论 0
def getPty(self, term, windowSize, modes):
        self.environ['TERM'] = term
        self.winSize = windowSize
        self.modes = modes
        master, slave = pty.openpty()
        ttyname = os.ttyname(slave)
        self.environ['SSH_TTY'] = ttyname 
        self.ptyTuple = (master, slave, ttyname)
pty.py 文件源码 项目:hostapd-mana 作者: adde88 项目源码 文件源码 阅读 24 收藏 0 点赞 0 评论 0
def master_open():
    """master_open() -> (master_fd, slave_name)
    Open a pty master and return the fd, and the filename of the slave end.
    Deprecated, use openpty() instead."""

    try:
        master_fd, slave_fd = os.openpty()
    except (AttributeError, OSError):
        pass
    else:
        slave_name = os.ttyname(slave_fd)
        os.close(slave_fd)
        return master_fd, slave_name

    return _open_terminal()
pty.py 文件源码 项目:hostapd-mana 作者: adde88 项目源码 文件源码 阅读 22 收藏 0 点赞 0 评论 0
def fork():
    """fork() -> (pid, master_fd)
    Fork and make the child a session leader with a controlling terminal."""

    try:
        pid, fd = os.forkpty()
    except (AttributeError, OSError):
        pass
    else:
        if pid == CHILD:
            try:
                os.setsid()
            except OSError:
                # os.forkpty() already set us session leader
                pass
        return pid, fd

    master_fd, slave_fd = openpty()
    pid = os.fork()
    if pid == CHILD:
        # Establish a new session.
        os.setsid()
        os.close(master_fd)

        # Slave becomes stdin/stdout/stderr of child.
        os.dup2(slave_fd, STDIN_FILENO)
        os.dup2(slave_fd, STDOUT_FILENO)
        os.dup2(slave_fd, STDERR_FILENO)
        if (slave_fd > STDERR_FILENO):
            os.close (slave_fd)

        # Explicitly open the tty to make it become a controlling tty.
        tmp_fd = os.open(os.ttyname(STDOUT_FILENO), os.O_RDWR)
        os.close(tmp_fd)
    else:
        os.close(slave_fd)

    # Parent and child process.
    return pid, master_fd
test_tpe.py 文件源码 项目:pyTeliumManager 作者: Ousret 项目源码 文件源码 阅读 21 收藏 0 点赞 0 评论 0
def __init__(self):
        self._master, self._slave = pty.openpty()
        self._s_name = os.ttyname(self._slave)

        self._fake = Faker()

        self._fake_device = threading.Thread(target=self.__run)
UTMP.py 文件源码 项目:QXSConsolas 作者: qxsch 项目源码 文件源码 阅读 20 收藏 0 点赞 0 评论 0
def getRealUser(self):
        ttyname = os.ttyname(sys.stdout.fileno())
        for entry in self.readUtmp():
            if entry[4] == "":
                continue
            if ttyname.endswith(entry[2]):
                return entry[4]
UTMP.py 文件源码 项目:QXSConsolas 作者: qxsch 项目源码 文件源码 阅读 24 收藏 0 点赞 0 评论 0
def getRealUser(self):
        ttyname = os.ttyname(sys.stdout.fileno())
        for entry in self.readUtmp():
            if entry[4] == "":
                continue
            if ttyname.endswith(entry[2]):
                return entry[4]
_fork_pty.py 文件源码 项目:watchmen 作者: lycclsltt 项目源码 文件源码 阅读 30 收藏 0 点赞 0 评论 0
def pty_make_controlling_tty(tty_fd):
    '''This makes the pseudo-terminal the controlling tty. This should be
    more portable than the pty.fork() function. Specifically, this should
    work on Solaris. '''

    child_name = os.ttyname(tty_fd)

    # Disconnect from controlling tty, if any.  Raises OSError of ENXIO
    # if there was no controlling tty to begin with, such as when
    # executed by a cron(1) job.
    try:
        fd = os.open("/dev/tty", os.O_RDWR | os.O_NOCTTY)
        os.close(fd)
    except OSError as err:
        if err.errno != errno.ENXIO:
            raise

    os.setsid()

    # Verify we are disconnected from controlling tty by attempting to open
    # it again.  We expect that OSError of ENXIO should always be raised.
    try:
        fd = os.open("/dev/tty", os.O_RDWR | os.O_NOCTTY)
        os.close(fd)
        raise ExceptionPexpect("OSError of errno.ENXIO should be raised.")
    except OSError as err:
        if err.errno != errno.ENXIO:
            raise

    # Verify we can open child pty.
    fd = os.open(child_name, os.O_RDWR)
    os.close(fd)

    # Verify we now have a controlling tty.
    fd = os.open("/dev/tty", os.O_WRONLY)
    os.close(fd)
_fork_pty.py 文件源码 项目:leetcode 作者: thomasyimgit 项目源码 文件源码 阅读 29 收藏 0 点赞 0 评论 0
def pty_make_controlling_tty(tty_fd):
    '''This makes the pseudo-terminal the controlling tty. This should be
    more portable than the pty.fork() function. Specifically, this should
    work on Solaris. '''

    child_name = os.ttyname(tty_fd)

    # Disconnect from controlling tty, if any.  Raises OSError of ENXIO
    # if there was no controlling tty to begin with, such as when
    # executed by a cron(1) job.
    try:
        fd = os.open("/dev/tty", os.O_RDWR | os.O_NOCTTY)
        os.close(fd)
    except OSError as err:
        if err.errno != errno.ENXIO:
            raise

    os.setsid()

    # Verify we are disconnected from controlling tty by attempting to open
    # it again.  We expect that OSError of ENXIO should always be raised.
    try:
        fd = os.open("/dev/tty", os.O_RDWR | os.O_NOCTTY)
        os.close(fd)
        raise ExceptionPexpect("OSError of errno.ENXIO should be raised.")
    except OSError as err:
        if err.errno != errno.ENXIO:
            raise

    # Verify we can open child pty.
    fd = os.open(child_name, os.O_RDWR)
    os.close(fd)

    # Verify we now have a controlling tty.
    fd = os.open("/dev/tty", os.O_WRONLY)
    os.close(fd)
pty.py 文件源码 项目:zippy 作者: securesystemslab 项目源码 文件源码 阅读 26 收藏 0 点赞 0 评论 0
def master_open():
    """master_open() -> (master_fd, slave_name)
    Open a pty master and return the fd, and the filename of the slave end.
    Deprecated, use openpty() instead."""

    try:
        master_fd, slave_fd = os.openpty()
    except (AttributeError, OSError):
        pass
    else:
        slave_name = os.ttyname(slave_fd)
        os.close(slave_fd)
        return master_fd, slave_name

    return _open_terminal()
pty.py 文件源码 项目:zippy 作者: securesystemslab 项目源码 文件源码 阅读 24 收藏 0 点赞 0 评论 0
def fork():
    """fork() -> (pid, master_fd)
    Fork and make the child a session leader with a controlling terminal."""

    try:
        pid, fd = os.forkpty()
    except (AttributeError, OSError):
        pass
    else:
        if pid == CHILD:
            try:
                os.setsid()
            except OSError:
                # os.forkpty() already set us session leader
                pass
        return pid, fd

    master_fd, slave_fd = openpty()
    pid = os.fork()
    if pid == CHILD:
        # Establish a new session.
        os.setsid()
        os.close(master_fd)

        # Slave becomes stdin/stdout/stderr of child.
        os.dup2(slave_fd, STDIN_FILENO)
        os.dup2(slave_fd, STDOUT_FILENO)
        os.dup2(slave_fd, STDERR_FILENO)
        if (slave_fd > STDERR_FILENO):
            os.close (slave_fd)

        # Explicitly open the tty to make it become a controlling tty.
        tmp_fd = os.open(os.ttyname(STDOUT_FILENO), os.O_RDWR)
        os.close(tmp_fd)
    else:
        os.close(slave_fd)

    # Parent and child process.
    return pid, master_fd
pexpect.py 文件源码 项目:winpexpect 作者: geertj 项目源码 文件源码 阅读 29 收藏 0 点赞 0 评论 0
def __pty_make_controlling_tty(self, tty_fd):

        """This makes the pseudo-terminal the controlling tty. This should be
        more portable than the pty.fork() function. Specifically, this should
        work on Solaris. """

        child_name = os.ttyname(tty_fd)

        # Disconnect from controlling tty if still connected.
        fd = os.open("/dev/tty", os.O_RDWR | os.O_NOCTTY);
        if fd >= 0:
            os.close(fd)

        os.setsid()

        # Verify we are disconnected from controlling tty
        try:
            fd = os.open("/dev/tty", os.O_RDWR | os.O_NOCTTY);
            if fd >= 0:
                os.close(fd)
                raise ExceptionPexpect, "Error! We are not disconnected from a controlling tty."
        except:
            # Good! We are disconnected from a controlling tty.
            pass

        # Verify we can open child pty.
        fd = os.open(child_name, os.O_RDWR);
        if fd < 0:
            raise ExceptionPexpect, "Error! Could not open child pty, " + child_name
        else:
            os.close(fd)

        # Verify we now have a controlling tty.
        fd = os.open("/dev/tty", os.O_WRONLY)
        if fd < 0:
            raise ExceptionPexpect, "Error! Could not open controlling tty, /dev/tty"
        else:
            os.close(fd)
__init__.py 文件源码 项目:binja_dynamics 作者: ehennenfent 项目源码 文件源码 阅读 23 收藏 0 点赞 0 评论 0
def __init__(self, message_q):
        QThread.__init__(self)
        self.messages = message_q
        # Only the inferior process need use the slave file descriptor
        self.master, self.slave = pty.openpty()
        self.tty = os.ttyname(self.slave)
pty.py 文件源码 项目:oil 作者: oilshell 项目源码 文件源码 阅读 25 收藏 0 点赞 0 评论 0
def master_open():
    """master_open() -> (master_fd, slave_name)
    Open a pty master and return the fd, and the filename of the slave end.
    Deprecated, use openpty() instead."""

    try:
        master_fd, slave_fd = os.openpty()
    except (AttributeError, OSError):
        pass
    else:
        slave_name = os.ttyname(slave_fd)
        os.close(slave_fd)
        return master_fd, slave_name

    return _open_terminal()
pty.py 文件源码 项目:oil 作者: oilshell 项目源码 文件源码 阅读 30 收藏 0 点赞 0 评论 0
def fork():
    """fork() -> (pid, master_fd)
    Fork and make the child a session leader with a controlling terminal."""

    try:
        pid, fd = os.forkpty()
    except (AttributeError, OSError):
        pass
    else:
        if pid == CHILD:
            try:
                os.setsid()
            except OSError:
                # os.forkpty() already set us session leader
                pass
        return pid, fd

    master_fd, slave_fd = openpty()
    pid = os.fork()
    if pid == CHILD:
        # Establish a new session.
        os.setsid()
        os.close(master_fd)

        # Slave becomes stdin/stdout/stderr of child.
        os.dup2(slave_fd, STDIN_FILENO)
        os.dup2(slave_fd, STDOUT_FILENO)
        os.dup2(slave_fd, STDERR_FILENO)
        if (slave_fd > STDERR_FILENO):
            os.close (slave_fd)

        # Explicitly open the tty to make it become a controlling tty.
        tmp_fd = os.open(os.ttyname(STDOUT_FILENO), os.O_RDWR)
        os.close(tmp_fd)
    else:
        os.close(slave_fd)

    # Parent and child process.
    return pid, master_fd
pty.py 文件源码 项目:python2-tracer 作者: extremecoders-re 项目源码 文件源码 阅读 28 收藏 0 点赞 0 评论 0
def master_open():
    """master_open() -> (master_fd, slave_name)
    Open a pty master and return the fd, and the filename of the slave end.
    Deprecated, use openpty() instead."""

    try:
        master_fd, slave_fd = os.openpty()
    except (AttributeError, OSError):
        pass
    else:
        slave_name = os.ttyname(slave_fd)
        os.close(slave_fd)
        return master_fd, slave_name

    return _open_terminal()
pty.py 文件源码 项目:python2-tracer 作者: extremecoders-re 项目源码 文件源码 阅读 28 收藏 0 点赞 0 评论 0
def fork():
    """fork() -> (pid, master_fd)
    Fork and make the child a session leader with a controlling terminal."""

    try:
        pid, fd = os.forkpty()
    except (AttributeError, OSError):
        pass
    else:
        if pid == CHILD:
            try:
                os.setsid()
            except OSError:
                # os.forkpty() already set us session leader
                pass
        return pid, fd

    master_fd, slave_fd = openpty()
    pid = os.fork()
    if pid == CHILD:
        # Establish a new session.
        os.setsid()
        os.close(master_fd)

        # Slave becomes stdin/stdout/stderr of child.
        os.dup2(slave_fd, STDIN_FILENO)
        os.dup2(slave_fd, STDOUT_FILENO)
        os.dup2(slave_fd, STDERR_FILENO)
        if (slave_fd > STDERR_FILENO):
            os.close (slave_fd)

        # Explicitly open the tty to make it become a controlling tty.
        tmp_fd = os.open(os.ttyname(STDOUT_FILENO), os.O_RDWR)
        os.close(tmp_fd)
    else:
        os.close(slave_fd)

    # Parent and child process.
    return pid, master_fd
unix.py 文件源码 项目:sslstrip-hsts-openwrt 作者: adde88 项目源码 文件源码 阅读 26 收藏 0 点赞 0 评论 0
def getPty(self, term, windowSize, modes):
        self.environ['TERM'] = term
        self.winSize = windowSize
        self.modes = modes
        master, slave = pty.openpty()
        ttyname = os.ttyname(slave)
        self.environ['SSH_TTY'] = ttyname 
        self.ptyTuple = (master, slave, ttyname)
pty.py 文件源码 项目:sslstrip-hsts-openwrt 作者: adde88 项目源码 文件源码 阅读 50 收藏 0 点赞 0 评论 0
def master_open():
    """master_open() -> (master_fd, slave_name)
    Open a pty master and return the fd, and the filename of the slave end.
    Deprecated, use openpty() instead."""

    try:
        master_fd, slave_fd = os.openpty()
    except (AttributeError, OSError):
        pass
    else:
        slave_name = os.ttyname(slave_fd)
        os.close(slave_fd)
        return master_fd, slave_name

    return _open_terminal()
pty.py 文件源码 项目:sslstrip-hsts-openwrt 作者: adde88 项目源码 文件源码 阅读 27 收藏 0 点赞 0 评论 0
def fork():
    """fork() -> (pid, master_fd)
    Fork and make the child a session leader with a controlling terminal."""

    try:
        pid, fd = os.forkpty()
    except (AttributeError, OSError):
        pass
    else:
        if pid == CHILD:
            try:
                os.setsid()
            except OSError:
                # os.forkpty() already set us session leader
                pass
        return pid, fd

    master_fd, slave_fd = openpty()
    pid = os.fork()
    if pid == CHILD:
        # Establish a new session.
        os.setsid()
        os.close(master_fd)

        # Slave becomes stdin/stdout/stderr of child.
        os.dup2(slave_fd, STDIN_FILENO)
        os.dup2(slave_fd, STDOUT_FILENO)
        os.dup2(slave_fd, STDERR_FILENO)
        if (slave_fd > STDERR_FILENO):
            os.close (slave_fd)

        # Explicitly open the tty to make it become a controlling tty.
        tmp_fd = os.open(os.ttyname(STDOUT_FILENO), os.O_RDWR)
        os.close(tmp_fd)
    else:
        os.close(slave_fd)

    # Parent and child process.
    return pid, master_fd
serial_interface.py 文件源码 项目:vbcg 作者: nspi 项目源码 文件源码 阅读 23 收藏 0 点赞 0 评论 0
def __init__(self, name):
        """If possible, connect to serial port"""

        # Try to establish connection to serial port
        try:
            self.serial_connection = serial.Serial(name, 9600)
            self.serial_connection_established = True

        # If it fails because there is no device, use virtual serial port
        except serial.SerialException:

            # Create virtual serial port
            self.master, self.slave = pty.openpty()
            self.vPort = os.ttyname(self.slave)

            # Create instance
            self.serial_connection = serial.Serial(self.vPort, 9600)
            self.serial_connection_established = True

            logging.warn("Trigger device not found -> Using virtual device")

        # Create events
        self.trigger_event = threading.Event()
        self.eventProgramEnd = threading.Event()

        # Store current time
        self.last_trigger_time = time.time()
        self.firstRun = True

        # Call initialization of thread class
        threading.Thread.__init__(self)
nojail.py 文件源码 项目:freedomfighting 作者: JusticeRage 项目源码 文件源码 阅读 19 收藏 0 点赞 0 评论 0
def daemonize():
    """
    This function will daemonize the script and continue executing it only
    when the current session will have ended.
    The rationale behind this is to clean logs after the caller has disconnected from
    the machine in order to catch SSH logout records (for instance).
    :return:
    """
    def fork():
        try:
            pid = os.fork()
            if pid > 0:
                # Exit parent
                sys.exit(0)
        except OSError:
            _, e = sys.exc_info()[:2]
            print "Error while forking! (%s)" % e.message
            sys.exit(1)

    # Double fork to daemonize
    fork()
    os.chdir('/')
    os.setsid()
    os.umask(0)
    fork()

    print success("The script has daemonized successfully. Logs will be cleaned when this "
                  "session ends.")

    # Dirty trick to figure out when the user has disconnected from the current session:
    # try to use the file descriptor for stdout and detect when it is closed.
    while True:
        time.sleep(10)
        try:
            os.ttyname(1)
        except:     # Exception caught: stdout doesn't exist anymore.
            return  # This means the session has ended and we can proceed.

# -----------------------------------------------------------------------------
__init__.py 文件源码 项目:obsoleted-vpduserv 作者: InfraSIM 项目源码 文件源码 阅读 17 收藏 0 点赞 0 评论 0
def __pty_make_controlling_tty(self, tty_fd):
        '''This makes the pseudo-terminal the controlling tty. This should be
        more portable than the pty.fork() function. Specifically, this should
        work on Solaris. '''

        child_name = os.ttyname(tty_fd)

        # Disconnect from controlling tty, if any.  Raises OSError of ENXIO
        # if there was no controlling tty to begin with, such as when
        # executed by a cron(1) job.
        try:
            fd = os.open("/dev/tty", os.O_RDWR | os.O_NOCTTY)
            os.close(fd)
        except OSError as err:
            if err.errno != errno.ENXIO:
                raise

        os.setsid()

        # Verify we are disconnected from controlling tty by attempting to open
        # it again.  We expect that OSError of ENXIO should always be raised.
        try:
            fd = os.open("/dev/tty", os.O_RDWR | os.O_NOCTTY)
            os.close(fd)
            raise ExceptionPexpect("OSError of errno.ENXIO should be raised.")
        except OSError as err:
            if err.errno != errno.ENXIO:
                raise

        # Verify we can open child pty.
        fd = os.open(child_name, os.O_RDWR)
        os.close(fd)

        # Verify we now have a controlling tty.
        fd = os.open("/dev/tty", os.O_WRONLY)
        os.close(fd)
_fork_pty.py 文件源码 项目:Repobot 作者: Desgard 项目源码 文件源码 阅读 29 收藏 0 点赞 0 评论 0
def pty_make_controlling_tty(tty_fd):
    '''This makes the pseudo-terminal the controlling tty. This should be
    more portable than the pty.fork() function. Specifically, this should
    work on Solaris. '''

    child_name = os.ttyname(tty_fd)

    # Disconnect from controlling tty, if any.  Raises OSError of ENXIO
    # if there was no controlling tty to begin with, such as when
    # executed by a cron(1) job.
    try:
        fd = os.open("/dev/tty", os.O_RDWR | os.O_NOCTTY)
        os.close(fd)
    except OSError as err:
        if err.errno != errno.ENXIO:
            raise

    os.setsid()

    # Verify we are disconnected from controlling tty by attempting to open
    # it again.  We expect that OSError of ENXIO should always be raised.
    try:
        fd = os.open("/dev/tty", os.O_RDWR | os.O_NOCTTY)
        os.close(fd)
        raise ExceptionPexpect("OSError of errno.ENXIO should be raised.")
    except OSError as err:
        if err.errno != errno.ENXIO:
            raise

    # Verify we can open child pty.
    fd = os.open(child_name, os.O_RDWR)
    os.close(fd)

    # Verify we now have a controlling tty.
    fd = os.open("/dev/tty", os.O_WRONLY)
    os.close(fd)
pty.py 文件源码 项目:pefile.pypy 作者: cloudtracer 项目源码 文件源码 阅读 46 收藏 0 点赞 0 评论 0
def master_open():
    """master_open() -> (master_fd, slave_name)
    Open a pty master and return the fd, and the filename of the slave end.
    Deprecated, use openpty() instead."""

    try:
        master_fd, slave_fd = os.openpty()
    except (AttributeError, OSError):
        pass
    else:
        slave_name = os.ttyname(slave_fd)
        os.close(slave_fd)
        return master_fd, slave_name

    return _open_terminal()
pty.py 文件源码 项目:pefile.pypy 作者: cloudtracer 项目源码 文件源码 阅读 29 收藏 0 点赞 0 评论 0
def fork():
    """fork() -> (pid, master_fd)
    Fork and make the child a session leader with a controlling terminal."""

    try:
        pid, fd = os.forkpty()
    except (AttributeError, OSError):
        pass
    else:
        if pid == CHILD:
            try:
                os.setsid()
            except OSError:
                # os.forkpty() already set us session leader
                pass
        return pid, fd

    master_fd, slave_fd = openpty()
    pid = os.fork()
    if pid == CHILD:
        # Establish a new session.
        os.setsid()
        os.close(master_fd)

        # Slave becomes stdin/stdout/stderr of child.
        os.dup2(slave_fd, STDIN_FILENO)
        os.dup2(slave_fd, STDOUT_FILENO)
        os.dup2(slave_fd, STDERR_FILENO)
        if (slave_fd > STDERR_FILENO):
            os.close (slave_fd)

        # Explicitly open the tty to make it become a controlling tty.
        tmp_fd = os.open(os.ttyname(STDOUT_FILENO), os.O_RDWR)
        os.close(tmp_fd)
    else:
        os.close(slave_fd)

    # Parent and child process.
    return pid, master_fd
_fork_pty.py 文件源码 项目:pipenv 作者: pypa 项目源码 文件源码 阅读 28 收藏 0 点赞 0 评论 0
def pty_make_controlling_tty(tty_fd):
    '''This makes the pseudo-terminal the controlling tty. This should be
    more portable than the pty.fork() function. Specifically, this should
    work on Solaris. '''

    child_name = os.ttyname(tty_fd)

    # Disconnect from controlling tty, if any.  Raises OSError of ENXIO
    # if there was no controlling tty to begin with, such as when
    # executed by a cron(1) job.
    try:
        fd = os.open("/dev/tty", os.O_RDWR | os.O_NOCTTY)
        os.close(fd)
    except OSError as err:
        if err.errno != errno.ENXIO:
            raise

    os.setsid()

    # Verify we are disconnected from controlling tty by attempting to open
    # it again.  We expect that OSError of ENXIO should always be raised.
    try:
        fd = os.open("/dev/tty", os.O_RDWR | os.O_NOCTTY)
        os.close(fd)
        raise ExceptionPexpect("OSError of errno.ENXIO should be raised.")
    except OSError as err:
        if err.errno != errno.ENXIO:
            raise

    # Verify we can open child pty.
    fd = os.open(child_name, os.O_RDWR)
    os.close(fd)

    # Verify we now have a controlling tty.
    fd = os.open("/dev/tty", os.O_WRONLY)
    os.close(fd)


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