diff options
Diffstat (limited to 'pexpect/examples/bd_serv.py')
| -rwxr-xr-x | pexpect/examples/bd_serv.py | 54 |
1 files changed, 36 insertions, 18 deletions
diff --git a/pexpect/examples/bd_serv.py b/pexpect/examples/bd_serv.py index b7def9e..55c01b5 100755 --- a/pexpect/examples/bd_serv.py +++ b/pexpect/examples/bd_serv.py @@ -9,6 +9,24 @@ This exposes an shell terminal on a socket. --password : (optional) sets the password to login with --port : set the local port for the server to listen on --watch : show the virtual screen after each client request + +PEXPECT LICENSE + + This license is approved by the OSI and FSF as GPL-compatible. + http://opensource.org/licenses/isc-license.txt + + Copyright (c) 2012, Noah Spurrier <noah@noah.org> + PERMISSION TO USE, COPY, MODIFY, AND/OR DISTRIBUTE THIS SOFTWARE FOR ANY + PURPOSE WITH OR WITHOUT FEE IS HEREBY GRANTED, PROVIDED THAT THE ABOVE + COPYRIGHT NOTICE AND THIS PERMISSION NOTICE APPEAR IN ALL COPIES. + THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + """ # Having the password on the command line is not a good idea, but @@ -76,7 +94,7 @@ def daemonize (stdin='/dev/null', stdout='/dev/null', stderr='/dev/null'): case, stdin, stdout and stderr are all set up for you to refer to the network connection, and the fork()s and session manipulation should not be done (to avoid confusing inetd). Only the chdir() and umask() steps remain - as useful. + as useful. References: UNIX Programming FAQ @@ -94,30 +112,30 @@ def daemonize (stdin='/dev/null', stdout='/dev/null', stderr='/dev/null'): expect. ''' # Do first fork. - try: - pid = os.fork() + try: + pid = os.fork() if pid > 0: sys.exit(0) # Exit first parent. - except OSError, e: + except OSError, e: sys.stderr.write ("fork #1 failed: (%d) %s\n" % (e.errno, e.strerror) ) sys.exit(1) # Decouple from parent environment. - os.chdir("/") - os.umask(0) - os.setsid() + os.chdir("/") + os.umask(0) + os.setsid() # Do second fork. - try: - pid = os.fork() + try: + pid = os.fork() if pid > 0: sys.exit(0) # Exit second parent. - except OSError, e: + except OSError, e: sys.stderr.write ("fork #2 failed: (%d) %s\n" % (e.errno, e.strerror) ) sys.exit(1) # Now I am a daemon! - + # Redirect standard file descriptors. si = open(stdin, 'r') so = open(stdout, 'a+') @@ -147,7 +165,7 @@ def main (): # There are a million ways to cry for help. These are but a few of them. if [elem for elem in command_line_options if elem in ['-h','--h','-?','--?','--help']]: exit_with_usage(0) - + hostname = "127.0.0.1" port = 1664 username = os.getenv('USER') @@ -170,15 +188,15 @@ def main (): password = options['--password'] else: password = getpass.getpass('password: ') - - if daemon_mode: + + if daemon_mode: print "daemonizing server" daemonize() #daemonize('/dev/null','/tmp/daemon.log','/tmp/daemon.log') - + sys.stdout.write ('server started with pid %d\n' % os.getpid() ) - virtual_screen = ANSI.ANSI (24,80) + virtual_screen = ANSI.ANSI (24,80) child = pxssh.pxssh() child.login (hostname, username, password) print 'created shell. command line prompt is', child.PROMPT @@ -262,7 +280,7 @@ def pretty_box (rows, cols, s): top_bot = '+' + '-'*cols + '+\n' return top_bot + '\n'.join(['|'+line+'|' for line in s.split('\n')]) + '\n' + top_bot - + def error_response (msg): response = [] @@ -299,7 +317,7 @@ def parse_host_connect_string (hcs): d = m.groupdict() d['password'] = d['password'].replace('\\@','@') return d - + if __name__ == "__main__": try: |