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https://github.com/isc-projects/bind9.git
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58bd26b6cf
This commit converts the license handling to adhere to the REUSE specification. It specifically: 1. Adds used licnses to LICENSES/ directory 2. Add "isc" template for adding the copyright boilerplate 3. Changes all source files to include copyright and SPDX license header, this includes all the C sources, documentation, zone files, configuration files. There are notes in the doc/dev/copyrights file on how to add correct headers to the new files. 4. Handle the rest that can't be modified via .reuse/dep5 file. The binary (or otherwise unmodifiable) files could have license places next to them in <foo>.license file, but this would lead to cluttered repository and most of the files handled in the .reuse/dep5 file are system test files.
99 lines
2 KiB
Python
99 lines
2 KiB
Python
# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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#
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# SPDX-License-Identifier: MPL-2.0
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#
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, you can obtain one at https://mozilla.org/MPL/2.0/.
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#
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# See the COPYRIGHT file distributed with this work for additional
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# information regarding copyright ownership.
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import os
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import select
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import signal
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import socket
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import sys
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import time
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import dns.flags
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import dns.message
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def port():
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env_port = os.getenv("PORT")
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if env_port is None:
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env_port = 5300
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else:
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env_port = int(env_port)
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return env_port
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def udp_listen(port):
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udp = socket.socket(type=socket.SOCK_DGRAM)
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udp.bind(('10.53.0.3', port))
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return udp
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def tcp_listen(port):
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tcp = socket.socket(type=socket.SOCK_STREAM)
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tcp.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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tcp.bind(('10.53.0.3', port))
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tcp.listen(100)
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return tcp
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def udp_tc_once(udp):
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qrybytes, clientaddr = udp.recvfrom(65535)
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qry = dns.message.from_wire(qrybytes)
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answ = dns.message.make_response(qry)
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answ.flags |= dns.flags.TC
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answbytes = answ.to_wire()
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udp.sendto(answbytes, clientaddr)
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def tcp_once(tcp):
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csock, _clientaddr = tcp.accept()
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time.sleep(5)
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csock.close()
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def sigterm(signum, frame):
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os.remove('ans.pid')
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sys.exit(0)
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def write_pid():
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with open('ans.pid', 'w') as f:
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pid = os.getpid()
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f.write("{}".format(pid))
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signal.signal(signal.SIGTERM, sigterm)
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write_pid()
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udp = udp_listen(port())
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tcp = tcp_listen(port())
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input = [udp, tcp]
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while True:
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try:
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inputready, outputready, exceptready = select.select(input, [], [])
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except select.error:
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break
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except socket.error:
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break
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except KeyboardInterrupt:
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break
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for s in inputready:
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if s == udp:
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udp_tc_once(udp)
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if s == tcp:
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tcp_once(tcp)
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sigterm(signal.SIGTERM, 0)
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