59 lines
2.4 KiB
Python
Executable File
59 lines
2.4 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Copyright (c) 2021, The OpenThread Authors.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. Neither the name of the copyright holder nor the
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# names of its contributors may be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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import socket
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import sys
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import ipaddress
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# USAGE: python3 udp_send.py [destination_ipv6] [destination_port] [message] [hop_limit]
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# udp_send sends a udp packet to an ipv6 address.
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def main():
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args = sys.argv[1:]
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assert len(args) == 4
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destination_ipv6 = args[0]
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destination_port = args[1]
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message = bytes(args[2], 'utf-8')
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hop_limit = int(args[3])
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sock = socket.socket(
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socket.AF_INET6, # Internet
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socket.SOCK_DGRAM) # UDP
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address = ipaddress.ip_address(destination_ipv6)
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if address.is_multicast:
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sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_HOPS, hop_limit)
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else:
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sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_UNICAST_HOPS, hop_limit)
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sock.sendto(message, (destination_ipv6, int(destination_port)))
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sock.close()
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if __name__ == '__main__':
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main()
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