fishdescriptor/fishdescriptor

   1 #!/usr/bin/python3
   2
   3 import sys
   4 import fishdescriptor.fish
   5 import re
   6
   7 donor = None
   8
   9 usage =
  10 '''
  11 fishdescriptor <pid> <action>... [-p|--pid <pid> <action>...]
  12
  13 <action>s
  14   <there-fd>[=<here>]
  15           fish the openfile referenced by descriptor <there-fd> in
  16           (the most recent) <pid> and keep a descriptor onto it;
  17           and, optionally, give it the number <here> for exec
  18   exec <program> [<arg>...]
  19           execute a process with each specified numeric <here>
  20           as an actual fd
  21   sockinfo
  22           calls getsockname/getpeername on the most recent
  23           <there-fd>
  24
  25   -p|-pid <pid>
  26           now attach to <pid>, detaching from previous pid
  27 '''
  28
  29 def set_donor(pid_arg):
  30     pid = int(pid_arg)
  31     if donor is not None: donor.detach()
  32     donor = fishdescriptor.fish.Donor(pid)
  33
  34 def process_args():
  35     def arg_matches(regexp):
  36         nonlocal m
  37         m = re.search(regexp, arg)
  38         return m
  39
  40     arg_ix = 0
  41     def next_arg():
  42         sys.argv[arg_ix] =
  43
  44     while arg_ix < len(sys.argv):
  45         arg = next_arg()
  46         if arg_matches(r'^-p(\d+)') or
  47            arg_matches(r'^--pid=(\d+)$')
  48             set_donor(m.groups(1)[0])
  49
  50             pid =
  51 (?:-p|^--pid(?:=|$))(\d*)$'):
  52
  53             pid = int(m.groups(1)[0])
  54         elif arg_matches(r'^(?:-p|^--pid=)(\d+)$'):
  55
  56         if expecting_pid:
  57             set_donor(arg)
  58         el
  59         elif arg_matches(r'\d+
  60
  61     parser = OptionParser(usage=usage, )
  62
  63     parser.add_option("-p", "--pid", type='int', callback=set_donor)
  64     parser.add_option(
  65
  66 pid = int(sys.argv[1])
  67 fds = [int(x) for x in sys.argv[2:]]
  68
  69 d = fishdescriptor.fish.Donor(pid)
  70 r = d.fish(fds)
  71 print(repr(r))