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Mini Shell
from ._cares import ffi as _ffi, lib as _lib
import _cffi_backend # hint for bundler tools
if _lib.ARES_SUCCESS != _lib.ares_library_init(_lib.ARES_LIB_INIT_ALL):
raise RuntimeError('Could not initialize c-ares')
from . import errno
from .utils import ascii_bytes, maybe_str, parse_name
from ._version import __version__
import collections.abc
import socket
import math
import functools
import sys
exported_pycares_symbols = [
# Flag values
'ARES_FLAG_USEVC',
'ARES_FLAG_PRIMARY',
'ARES_FLAG_IGNTC',
'ARES_FLAG_NORECURSE',
'ARES_FLAG_STAYOPEN',
'ARES_FLAG_NOSEARCH',
'ARES_FLAG_NOALIASES',
'ARES_FLAG_NOCHECKRESP',
# Nameinfo flag values
'ARES_NI_NOFQDN',
'ARES_NI_NUMERICHOST',
'ARES_NI_NAMEREQD',
'ARES_NI_NUMERICSERV',
'ARES_NI_DGRAM',
'ARES_NI_TCP',
'ARES_NI_UDP',
'ARES_NI_SCTP',
'ARES_NI_DCCP',
'ARES_NI_NUMERICSCOPE',
'ARES_NI_LOOKUPHOST',
'ARES_NI_LOOKUPSERVICE',
'ARES_NI_IDN',
'ARES_NI_IDN_ALLOW_UNASSIGNED',
'ARES_NI_IDN_USE_STD3_ASCII_RULES',
# Bad socket
'ARES_SOCKET_BAD',
]
for symbol in exported_pycares_symbols:
globals()[symbol] = getattr(_lib, symbol)
exported_pycares_symbols_map = {
# Query types
"QUERY_TYPE_A" : "T_A",
"QUERY_TYPE_AAAA" : "T_AAAA",
"QUERY_TYPE_ANY" : "T_ANY",
"QUERY_TYPE_CNAME" : "T_CNAME",
"QUERY_TYPE_MX" : "T_MX",
"QUERY_TYPE_NAPTR" : "T_NAPTR",
"QUERY_TYPE_NS" : "T_NS",
"QUERY_TYPE_PTR" : "T_PTR",
"QUERY_TYPE_SOA" : "T_SOA",
"QUERY_TYPE_SRV" : "T_SRV",
"QUERY_TYPE_TXT" : "T_TXT",
}
for k, v in exported_pycares_symbols_map.items():
globals()[k] = getattr(_lib, v)
globals()['ARES_VERSION'] = maybe_str(_ffi.string(_lib.ares_version(_ffi.NULL)))
PYCARES_ADDRTTL_SIZE = 256
class AresError(Exception):
pass
# callback helpers
_global_set = set()
@_ffi.callback("void (void *data, ares_socket_t socket_fd, int readable, int writable )")
def _sock_state_cb(data, socket_fd, readable, writable):
sock_state_cb = _ffi.from_handle(data)
sock_state_cb(socket_fd, readable, writable)
@_ffi.callback("void (void *arg, int status, int timeouts, struct hostent *hostent)")
def _host_cb(arg, status, timeouts, hostent):
callback = _ffi.from_handle(arg)
_global_set.discard(arg)
if status != _lib.ARES_SUCCESS:
result = None
else:
result = ares_host_result(hostent)
status = None
callback(result, status)
@_ffi.callback("void (void *arg, int status, int timeouts, char *node, char *service)")
def _nameinfo_cb(arg, status, timeouts, node, service):
callback = _ffi.from_handle(arg)
_global_set.discard(arg)
if status != _lib.ARES_SUCCESS:
result = None
else:
result = ares_nameinfo_result(node, service)
status = None
callback(result, status)
@_ffi.callback("void (void *arg, int status, int timeouts, unsigned char *abuf, int alen)")
def _query_cb(arg, status, timeouts, abuf, alen):
callback, query_type = _ffi.from_handle(arg)
_global_set.discard(arg)
if status == _lib.ARES_SUCCESS:
if query_type == _lib.T_ANY:
result = []
for qtype in (_lib.T_A, _lib.T_AAAA, _lib.T_CNAME, _lib.T_MX, _lib.T_NAPTR, _lib.T_NS, _lib.T_PTR, _lib.T_SOA, _lib.T_SRV, _lib.T_TXT):
r, status = parse_result(qtype, abuf, alen)
if status not in (None, _lib.ARES_ENODATA, _lib.ARES_EBADRESP):
result = None
break
if r is not None:
if isinstance(r, collections.abc.Iterable):
result.extend(r)
else:
result.append(r)
else:
status = None
else:
result, status = parse_result(query_type, abuf, alen)
else:
result = None
callback(result, status)
def parse_result(query_type, abuf, alen):
if query_type == _lib.T_A:
addrttls = _ffi.new("struct ares_addrttl[]", PYCARES_ADDRTTL_SIZE)
naddrttls = _ffi.new("int*", PYCARES_ADDRTTL_SIZE)
parse_status = _lib.ares_parse_a_reply(abuf, alen, _ffi.NULL, addrttls, naddrttls)
if parse_status != _lib.ARES_SUCCESS:
result = None
status = parse_status
else:
result = [ares_query_a_result(addrttls[i]) for i in range(naddrttls[0])]
status = None
elif query_type == _lib.T_AAAA:
addrttls = _ffi.new("struct ares_addr6ttl[]", PYCARES_ADDRTTL_SIZE)
naddrttls = _ffi.new("int*", PYCARES_ADDRTTL_SIZE)
parse_status = _lib.ares_parse_aaaa_reply(abuf, alen, _ffi.NULL, addrttls, naddrttls)
if parse_status != _lib.ARES_SUCCESS:
result = None
status = parse_status
else:
result = [ares_query_aaaa_result(addrttls[i]) for i in range(naddrttls[0])]
status = None
elif query_type == _lib.T_CNAME:
host = _ffi.new("struct hostent **")
parse_status = _lib.ares_parse_a_reply(abuf, alen, host, _ffi.NULL, _ffi.NULL)
if parse_status != _lib.ARES_SUCCESS:
result = None
status = parse_status
else:
result = ares_query_cname_result(host[0])
_lib.ares_free_hostent(host[0])
status = None
elif query_type == _lib.T_MX:
mx_reply = _ffi.new("struct ares_mx_reply **")
parse_status = _lib.ares_parse_mx_reply(abuf, alen, mx_reply);
if parse_status != _lib.ARES_SUCCESS:
result = None
status = parse_status
else:
result = []
mx_reply_ptr = mx_reply[0]
while mx_reply_ptr != _ffi.NULL:
result.append(ares_query_mx_result(mx_reply_ptr))
mx_reply_ptr = mx_reply_ptr.next
_lib.ares_free_data(mx_reply[0])
status = None
elif query_type == _lib.T_NAPTR:
naptr_reply = _ffi.new("struct ares_naptr_reply **")
parse_status = _lib.ares_parse_naptr_reply(abuf, alen, naptr_reply);
if parse_status != _lib.ARES_SUCCESS:
result = None
status = parse_status
else:
result = []
naptr_reply_ptr = naptr_reply[0]
while naptr_reply_ptr != _ffi.NULL:
result.append(ares_query_naptr_result(naptr_reply_ptr))
naptr_reply_ptr = naptr_reply_ptr.next
_lib.ares_free_data(naptr_reply[0])
status = None
elif query_type == _lib.T_NS:
hostent = _ffi.new("struct hostent **")
parse_status = _lib.ares_parse_ns_reply(abuf, alen, hostent);
if parse_status != _lib.ARES_SUCCESS:
result = None
status = parse_status
else:
result = []
host = hostent[0]
i = 0
while host.h_aliases[i] != _ffi.NULL:
result.append(ares_query_ns_result(host.h_aliases[i]))
i += 1
_lib.ares_free_hostent(host)
status = None
elif query_type == _lib.T_PTR:
hostent = _ffi.new("struct hostent **")
hostttl = _ffi.new("int*", PYCARES_ADDRTTL_SIZE)
parse_status = _lib.ares_parse_ptr_reply(abuf, alen, _ffi.NULL, 0, socket.AF_UNSPEC, hostent, hostttl);
if parse_status != _lib.ARES_SUCCESS:
result = None
status = parse_status
else:
aliases = []
host = hostent[0]
i = 0
while host.h_aliases[i] != _ffi.NULL:
aliases.append(maybe_str(_ffi.string(host.h_aliases[i])))
i += 1
result = ares_query_ptr_result(host, hostttl[0], aliases)
_lib.ares_free_hostent(host)
status = None
elif query_type == _lib.T_SOA:
soa_reply = _ffi.new("struct ares_soa_reply **")
parse_status = _lib.ares_parse_soa_reply(abuf, alen, soa_reply);
if parse_status != _lib.ARES_SUCCESS:
result = None
status = parse_status
else:
result = ares_query_soa_result(soa_reply[0])
_lib.ares_free_data(soa_reply[0])
status = None
elif query_type == _lib.T_SRV:
srv_reply = _ffi.new("struct ares_srv_reply **")
parse_status = _lib.ares_parse_srv_reply(abuf, alen, srv_reply);
if parse_status != _lib.ARES_SUCCESS:
result = None
status = parse_status
else:
result = []
srv_reply_ptr = srv_reply[0]
while srv_reply_ptr != _ffi.NULL:
result.append(ares_query_srv_result(srv_reply_ptr))
srv_reply_ptr = srv_reply_ptr.next
_lib.ares_free_data(srv_reply[0])
status = None
elif query_type == _lib.T_TXT:
txt_reply = _ffi.new("struct ares_txt_ext **")
parse_status = _lib.ares_parse_txt_reply_ext(abuf, alen, txt_reply);
if parse_status != _lib.ARES_SUCCESS:
result = None
status = parse_status
else:
result = []
txt_reply_ptr = txt_reply[0]
tmp_obj = None
while True:
if txt_reply_ptr == _ffi.NULL:
if tmp_obj is not None:
result.append(tmp_obj)
break
if txt_reply_ptr.record_start == 1:
if tmp_obj is not None:
result.append(tmp_obj)
tmp_obj = ares_query_txt_result(txt_reply_ptr)
else:
new_chunk = ares_query_txt_result(txt_reply_ptr)
tmp_obj.text += new_chunk.text
txt_reply_ptr = txt_reply_ptr.next
_lib.ares_free_data(txt_reply[0])
status = None
else:
raise ValueError("invalid query type specified")
return result, status
class Channel:
__qtypes__ = (_lib.T_A, _lib.T_AAAA, _lib.T_ANY, _lib.T_CNAME, _lib.T_MX, _lib.T_NAPTR, _lib.T_NS, _lib.T_PTR, _lib.T_SOA, _lib.T_SRV, _lib.T_TXT)
def __init__(self,
flags = None,
timeout = None,
tries = None,
ndots = None,
tcp_port = None,
udp_port = None,
servers = None,
domains = None,
lookups = None,
sock_state_cb = None,
socket_send_buffer_size = None,
socket_receive_buffer_size = None,
rotate = False,
local_ip = None,
local_dev = None,
resolvconf_path = None):
channel = _ffi.new("ares_channel *")
options = _ffi.new("struct ares_options *")
optmask = 0
if flags is not None:
options.flags = flags
optmask = optmask | _lib.ARES_OPT_FLAGS
if timeout is not None:
options.timeout = int(timeout * 1000)
optmask = optmask | _lib.ARES_OPT_TIMEOUTMS
if tries is not None:
options.tries = tries
optmask = optmask | _lib.ARES_OPT_TRIES
if ndots is not None:
options.ndots = ndots
optmask = optmask | _lib.ARES_OPT_NDOTS
if tcp_port is not None:
options.tcp_port = tcp_port
optmask = optmask | _lib.ARES_OPT_TCP_PORT
if udp_port is not None:
options.udp_port = udp_port
optmask = optmask | _lib.ARES_OPT_UDP_PORT
if socket_send_buffer_size is not None:
options.socket_send_buffer_size = socket_send_buffer_size
optmask = optmask | _lib.ARES_OPT_SOCK_SNDBUF
if socket_receive_buffer_size is not None:
options.socket_receive_buffer_size = socket_receive_buffer_size
optmask = optmask | _lib.ARES_OPT_SOCK_RCVBUF
if sock_state_cb:
if not callable(sock_state_cb):
raise TypeError("sock_state_cb is not callable")
userdata = _ffi.new_handle(sock_state_cb)
# This must be kept alive while the channel is alive.
self._sock_state_cb_handle = userdata
options.sock_state_cb = _sock_state_cb
options.sock_state_cb_data = userdata
optmask = optmask | _lib.ARES_OPT_SOCK_STATE_CB
if lookups:
options.lookups = lookups
optmask = optmask | _lib.ARES_OPT_LOOKUPS
if domains:
strs = [_ffi.new("char[]", ascii_bytes(i)) for i in domains]
c = _ffi.new("char *[%d]" % (len(domains) + 1))
for i in range(len(domains)):
c[i] = strs[i]
options.domains = c
options.ndomains = len(domains)
optmask = optmask | _lib.ARES_OPT_DOMAINS
if rotate:
optmask = optmask | _lib.ARES_OPT_ROTATE
if resolvconf_path is not None:
optmask = optmask | _lib.ARES_OPT_RESOLVCONF
options.resolvconf_path = _ffi.new('char[]', ascii_bytes(resolvconf_path))
r = _lib.ares_init_options(channel, options, optmask)
if r != _lib.ARES_SUCCESS:
raise AresError('Failed to initialize c-ares channel')
self._channel = _ffi.gc(channel, lambda x: _lib.ares_destroy(x[0]))
if servers:
self.servers = servers
if local_ip:
self.set_local_ip(local_ip)
if local_dev:
self.set_local_dev(local_dev)
def cancel(self):
_lib.ares_cancel(self._channel[0])
@property
def servers(self):
servers = _ffi.new("struct ares_addr_node **")
r = _lib.ares_get_servers(self._channel[0], servers)
if r != _lib.ARES_SUCCESS:
raise AresError(r, errno.strerror(r))
server_list = []
server = _ffi.new("struct ares_addr_node **", servers[0])
while True:
if server == _ffi.NULL:
break
ip = _ffi.new("char []", _lib.INET6_ADDRSTRLEN)
s = server[0]
if _ffi.NULL != _lib.ares_inet_ntop(s.family, _ffi.addressof(s.addr), ip, _lib.INET6_ADDRSTRLEN):
server_list.append(maybe_str(_ffi.string(ip, _lib.INET6_ADDRSTRLEN)))
server = s.next
return server_list
@servers.setter
def servers(self, servers):
c = _ffi.new("struct ares_addr_node[%d]" % len(servers))
for i, server in enumerate(servers):
if _lib.ares_inet_pton(socket.AF_INET, ascii_bytes(server), _ffi.addressof(c[i].addr.addr4)) == 1:
c[i].family = socket.AF_INET
elif _lib.ares_inet_pton(socket.AF_INET6, ascii_bytes(server), _ffi.addressof(c[i].addr.addr6)) == 1:
c[i].family = socket.AF_INET6
else:
raise ValueError("invalid IP address")
if i > 0:
c[i - 1].next = _ffi.addressof(c[i])
r = _lib.ares_set_servers(self._channel[0], c)
if r != _lib.ARES_SUCCESS:
raise AresError(r, errno.strerror(r))
def getsock(self):
rfds = []
wfds = []
socks = _ffi.new("ares_socket_t [%d]" % _lib.ARES_GETSOCK_MAXNUM)
bitmask = _lib.ares_getsock(self._channel[0], socks, _lib.ARES_GETSOCK_MAXNUM)
for i in range(_lib.ARES_GETSOCK_MAXNUM):
if _lib.ARES_GETSOCK_READABLE(bitmask, i):
rfds.append(socks[i])
if _lib.ARES_GETSOCK_WRITABLE(bitmask, i):
wfds.append(socks[i])
return rfds, wfds
def process_fd(self, read_fd, write_fd):
_lib.ares_process_fd(self._channel[0], _ffi.cast("ares_socket_t", read_fd), _ffi.cast("ares_socket_t", write_fd))
def timeout(self, t = None):
maxtv = _ffi.NULL
tv = _ffi.new("struct timeval*")
if t is not None:
if t >= 0.0:
maxtv = _ffi.new("struct timeval*")
maxtv.tv_sec = int(math.floor(t))
maxtv.tv_usec = int(math.fmod(t, 1.0) * 1000000)
else:
raise ValueError("timeout needs to be a positive number or None")
_lib.ares_timeout(self._channel[0], maxtv, tv)
if tv == _ffi.NULL:
return 0.0
return (tv.tv_sec + tv.tv_usec / 1000000.0)
def gethostbyaddr(self, addr, callback):
if not callable(callback):
raise TypeError("a callable is required")
addr4 = _ffi.new("struct in_addr*")
addr6 = _ffi.new("struct ares_in6_addr*")
if _lib.ares_inet_pton(socket.AF_INET, ascii_bytes(addr), (addr4)) == 1:
address = addr4
family = socket.AF_INET
elif _lib.ares_inet_pton(socket.AF_INET6, ascii_bytes(addr), (addr6)) == 1:
address = addr6
family = socket.AF_INET6
else:
raise ValueError("invalid IP address")
userdata = _ffi.new_handle(callback)
_global_set.add(userdata)
_lib.ares_gethostbyaddr(self._channel[0], address, _ffi.sizeof(address[0]), family, _host_cb, userdata)
def gethostbyname(self, name, family, callback):
if not callable(callback):
raise TypeError("a callable is required")
userdata = _ffi.new_handle(callback)
_global_set.add(userdata)
_lib.ares_gethostbyname(self._channel[0], parse_name(name), family, _host_cb, userdata)
def query(self, name, query_type, callback):
self._do_query(_lib.ares_query, name, query_type, callback)
def search(self, name, query_type, callback):
self._do_query(_lib.ares_search, name, query_type, callback)
def _do_query(self, func, name, query_type, callback):
if not callable(callback):
raise TypeError('a callable is required')
if query_type not in self.__qtypes__:
raise ValueError('invalid query type specified')
userdata = _ffi.new_handle((callback, query_type))
_global_set.add(userdata)
func(self._channel[0], parse_name(name), _lib.C_IN, query_type, _query_cb, userdata)
def set_local_ip(self, ip):
addr4 = _ffi.new("struct in_addr*")
addr6 = _ffi.new("struct ares_in6_addr*")
if _lib.ares_inet_pton(socket.AF_INET, ascii_bytes(ip), addr4) == 1:
_lib.ares_set_local_ip4(self._channel[0], socket.ntohl(addr4.s_addr))
elif _lib.ares_inet_pton(socket.AF_INET6, ascii_bytes(ip), addr6) == 1:
_lib.ares_set_local_ip6(self._channel[0], addr6)
else:
raise ValueError("invalid IP address")
def getnameinfo(self, ip_port, flags, callback):
if not callable(callback):
raise TypeError("a callable is required")
ip, port = ip_port
if port < 0 or port > 65535:
raise ValueError("port must be between 0 and 65535")
sa4 = _ffi.new("struct sockaddr_in*")
sa6 = _ffi.new("struct sockaddr_in6*")
if _lib.ares_inet_pton(socket.AF_INET, ascii_bytes(ip), _ffi.addressof(sa4.sin_addr)) == 1:
sa4.sin_family = socket.AF_INET
sa4.sin_port = socket.htons(port)
sa = sa4
elif _lib.ares_inet_pton(socket.AF_INET6, ascii_bytes(ip), _ffi.addressof(sa6.sin6_addr)) == 1:
sa6.sin6_family = socket.AF_INET6
sa6.sin6_port = socket.htons(port)
sa = sa6
else:
raise ValueError("invalid IP address")
userdata = _ffi.new_handle(callback)
_global_set.add(userdata)
_lib.ares_getnameinfo(self._channel[0], _ffi.cast("struct sockaddr*", sa), _ffi.sizeof(sa[0]), flags, _nameinfo_cb, userdata)
def set_local_dev(self, dev):
_lib.ares_set_local_dev(self._channel[0], dev)
class AresResult:
__slots__ = ()
def __repr__(self):
attrs = ['%s=%s' % (a, getattr(self, a)) for a in self.__slots__]
return '<%s> %s' % (self.__class__.__name__, ', '.join(attrs))
# DNS query result types
#
class ares_query_a_result(AresResult):
__slots__ = ('host', 'ttl')
type = 'A'
def __init__(self, ares_addrttl):
buf = _ffi.new("char[]", _lib.INET6_ADDRSTRLEN)
_lib.ares_inet_ntop(socket.AF_INET, _ffi.addressof(ares_addrttl.ipaddr), buf, _lib.INET6_ADDRSTRLEN)
self.host = maybe_str(_ffi.string(buf, _lib.INET6_ADDRSTRLEN))
self.ttl = ares_addrttl.ttl
class ares_query_aaaa_result(AresResult):
__slots__ = ('host', 'ttl')
type = 'AAAA'
def __init__(self, ares_addrttl):
buf = _ffi.new("char[]", _lib.INET6_ADDRSTRLEN)
_lib.ares_inet_ntop(socket.AF_INET6, _ffi.addressof(ares_addrttl.ip6addr), buf, _lib.INET6_ADDRSTRLEN)
self.host = maybe_str(_ffi.string(buf, _lib.INET6_ADDRSTRLEN))
self.ttl = ares_addrttl.ttl
class ares_query_cname_result(AresResult):
__slots__ = ('cname', 'ttl')
type = 'CNAME'
def __init__(self, host):
self.cname = maybe_str(_ffi.string(host.h_name))
self.ttl = -1
class ares_query_mx_result(AresResult):
__slots__ = ('host', 'priority', 'ttl')
type = 'MX'
def __init__(self, mx):
self.host = maybe_str(_ffi.string(mx.host))
self.priority = mx.priority
self.ttl = mx.ttl
class ares_query_naptr_result(AresResult):
__slots__ = ('order', 'preference', 'flags', 'service', 'regex', 'replacement', 'ttl')
type = 'NAPTR'
def __init__(self, naptr):
self.order = naptr.order
self.preference = naptr.preference
self.flags = maybe_str(_ffi.string(naptr.flags))
self.service = maybe_str(_ffi.string(naptr.service))
self.regex = maybe_str(_ffi.string(naptr.regexp))
self.replacement = maybe_str(_ffi.string(naptr.replacement))
self.ttl = naptr.ttl
class ares_query_ns_result(AresResult):
__slots__ = ('host', 'ttl')
type = 'NS'
def __init__(self, ns):
self.host = maybe_str(_ffi.string(ns))
self.ttl = -1
class ares_query_ptr_result(AresResult):
__slots__ = ('name', 'ttl', 'aliases')
type = 'PTR'
def __init__(self, hostent, ttl, aliases):
self.name = maybe_str(_ffi.string(hostent.h_name))
self.ttl = ttl
self.aliases = aliases
class ares_query_soa_result(AresResult):
__slots__ = ('nsname', 'hostmaster', 'serial', 'refresh', 'retry', 'expires', 'minttl', 'ttl')
type = 'SOA'
def __init__(self, soa):
self.nsname = maybe_str(_ffi.string(soa.nsname))
self.hostmaster = maybe_str(_ffi.string(soa.hostmaster))
self.serial = soa.serial
self.refresh = soa.refresh
self.retry = soa.retry
self.expires = soa.expire
self.minttl = soa.minttl
self.ttl = soa.ttl
class ares_query_srv_result(AresResult):
__slots__ = ('host', 'port', 'priority', 'weight', 'ttl')
type = 'SRV'
def __init__(self, srv):
self.host = maybe_str(_ffi.string(srv.host))
self.port = srv.port
self.priority = srv.priority
self.weight = srv.weight
self.ttl = srv.ttl
class ares_query_txt_result(AresResult):
__slots__ = ('text', 'ttl')
type = 'TXT'
def __init__(self, txt):
self.text = maybe_str(_ffi.string(txt.txt))
self.ttl = txt.ttl
# Other result types
#
class ares_host_result(AresResult):
__slots__ = ('name', 'aliases', 'addresses')
def __init__(self, hostent):
self.name = maybe_str(_ffi.string(hostent.h_name))
self.aliases = []
self.addresses = []
i = 0
while hostent.h_aliases[i] != _ffi.NULL:
self.aliases.append(maybe_str(_ffi.string(hostent.h_aliases[i])))
i += 1
i = 0
while hostent.h_addr_list[i] != _ffi.NULL:
buf = _ffi.new("char[]", _lib.INET6_ADDRSTRLEN)
if _ffi.NULL != _lib.ares_inet_ntop(hostent.h_addrtype, hostent.h_addr_list[i], buf, _lib.INET6_ADDRSTRLEN):
self.addresses.append(maybe_str(_ffi.string(buf, _lib.INET6_ADDRSTRLEN)))
i += 1
class ares_nameinfo_result(AresResult):
__slots__ = ('node', 'service')
def __init__(self, node, service):
self.node = maybe_str(_ffi.string(node))
self.service = maybe_str(_ffi.string(service)) if service != _ffi.NULL else None
__all__ = exported_pycares_symbols + list(exported_pycares_symbols_map.keys()) + ['AresError', 'Channel', 'errno', '__version__']
del exported_pycares_symbols, exported_pycares_symbols_map
Zerion Mini Shell 1.0