58 lines
1.7 KiB
Python
58 lines
1.7 KiB
Python
#!/usr/bin/env python2
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# -*- coding: utf-8 -*-
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# TRX Toolkit
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# UDP link implementation
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#
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# (C) 2017 by Vadim Yanitskiy <axilirator@gmail.com>
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#
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# All Rights Reserved
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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import socket
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class UDPLink:
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def __init__(self, remote_addr, remote_port, bind_port = 0):
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self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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self.sock.bind(('0.0.0.0', bind_port))
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self.sock.setblocking(0)
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# Save remote info
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self.remote_addr = remote_addr
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self.remote_port = remote_port
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def __del__(self):
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self.sock.close()
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def desc_link(self):
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(bind_addr, bind_port) = self.sock.getsockname()
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return "L:%s:%u <-> R:%s:%u" \
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% (bind_addr, bind_port, self.remote_addr, self.remote_port)
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def send(self, data):
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if type(data) not in [bytearray, bytes]:
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data = data.encode()
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self.sock.sendto(data, (self.remote_addr, self.remote_port))
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def sendto(self, data, remote):
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if type(data) not in [bytearray, bytes]:
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data = data.encode()
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self.sock.sendto(data, remote)
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