| 1 | # -*-pyrex-*- |
| 2 | # |
| 3 | # $Id$ |
| 4 | # |
| 5 | # Background name resolution |
| 6 | # |
| 7 | # (c) 2005 Straylight/Edgeware |
| 8 | # |
| 9 | |
| 10 | #----- Licensing notice ----------------------------------------------------- |
| 11 | # |
| 12 | # This file is part of the Python interface to mLib. |
| 13 | # |
| 14 | # mLib/Python is free software; you can redistribute it and/or modify |
| 15 | # it under the terms of the GNU General Public License as published by |
| 16 | # the Free Software Foundation; either version 2 of the License, or |
| 17 | # (at your option) any later version. |
| 18 | # |
| 19 | # mLib/Python is distributed in the hope that it will be useful, |
| 20 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | # GNU General Public License for more details. |
| 23 | # |
| 24 | # You should have received a copy of the GNU General Public License |
| 25 | # along with mLib/Python; if not, write to the Free Software Foundation, |
| 26 | # Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 27 | |
| 28 | cdef class SelResolve: |
| 29 | cdef bres_client r |
| 30 | cdef int _activep |
| 31 | cdef _resolved |
| 32 | cdef _failed |
| 33 | def __init__(me, *hunoz, **hukairz): |
| 34 | raise TypeError, 'abstract class' |
| 35 | def __dealloc__(me): |
| 36 | if me._activep: |
| 37 | me._dead() |
| 38 | bres_abort(&me.r) |
| 39 | property activep: |
| 40 | def __get__(me): |
| 41 | return _tobool(me._activep) |
| 42 | def kill(me): |
| 43 | if not me._activep: |
| 44 | raise ValueError, 'already dead' |
| 45 | me._dead() |
| 46 | bres_abort(&me.r) |
| 47 | return me |
| 48 | cdef _dead(me): |
| 49 | me._activep = 0 |
| 50 | me.dead() |
| 51 | def dead(me): |
| 52 | pass |
| 53 | property resolvedproc: |
| 54 | def __get__(me): |
| 55 | return me._resolved |
| 56 | def __set__(me, proc): |
| 57 | me._resolved = _checkcallable(proc, 'resolved proc') |
| 58 | def __del__(me): |
| 59 | me._resolved = None |
| 60 | property failedproc: |
| 61 | def __get__(me): |
| 62 | return me._failed |
| 63 | def __set__(me, proc): |
| 64 | me._failed = _checkcallable(proc, 'failed proc') |
| 65 | def __del__(me): |
| 66 | me._failed = None |
| 67 | def resolved(me, name, aliases, addrs): |
| 68 | return _maybecall(me._resolved, (name, aliases, addrs)) |
| 69 | def failed(me): |
| 70 | return _maybecall(me._failed, ()) |
| 71 | |
| 72 | cdef class SelResolveByName (SelResolve): |
| 73 | def __new__(me, char *name, resolvedproc = None, failedproc = None, |
| 74 | *hunoz, **hukairz): |
| 75 | me._resolved = _checkcallable(resolvedproc, 'resolved proc') |
| 76 | me._failed = _checkcallable(failedproc, 'failed proc') |
| 77 | me._activep = 1 |
| 78 | bres_byname(&me.r, name, _resfunc, <void *>me) |
| 79 | def __init__(me, name, resolvedproc = None, failedproc = None): |
| 80 | pass |
| 81 | |
| 82 | cdef class SelResolveByAddr (SelResolve): |
| 83 | def __new__(me, char *addr, resolvedproc = None, failedproc = None, |
| 84 | *hunoz, **hukairz): |
| 85 | cdef in_addr ia |
| 86 | if not inet_aton(addr, &ia): |
| 87 | raise TypeError, 'bad IP address' |
| 88 | me._resolved = _checkcallable(resolvedproc, 'resolved proc') |
| 89 | me._failed = _checkcallable(failedproc, 'failed proc') |
| 90 | me._activep = 1 |
| 91 | bres_byaddr(&me.r, ia, _resfunc, <void *>me) |
| 92 | def __init__(me, addr, resolvedproc = None, failedproc = None): |
| 93 | pass |
| 94 | |
| 95 | cdef void _resfunc(hostent *h, void *arg): |
| 96 | cdef SelResolve r |
| 97 | cdef int i |
| 98 | r = <SelResolve>arg |
| 99 | r._dead() |
| 100 | if h is NULL: |
| 101 | r.failed() |
| 102 | else: |
| 103 | alias = [] |
| 104 | addr = [] |
| 105 | i = 0 |
| 106 | while h.h_aliases[i]: |
| 107 | alias.append(h.h_aliases[i]) |
| 108 | i = i + 1 |
| 109 | i = 0 |
| 110 | while h.h_addr_list[i]: |
| 111 | addr.append(inet_ntoa((<in_addr *>h.h_addr_list[i])[0])) |
| 112 | i = i + 1 |
| 113 | r.resolved(h.h_name, alias, addr) |
| 114 | |
| 115 | bres_exec(NULL) |
| 116 | bres_init(&_sel) |
| 117 | |
| 118 | #----- That's all, folks ---------------------------------------------------- |