37 lines
1.2 KiB
Python
37 lines
1.2 KiB
Python
import socket
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import argparse
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import time
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import sys
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def main():
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# Parse command-line arguments
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parser = argparse.ArgumentParser(description="UDP Packet Receiver with Timeout")
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parser.add_argument('--port', type=int, required=True, help="Port to listen for UDP packets.")
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parser.add_argument('--timeout', type=int, required=True, help="Timeout in seconds to shut down if no packets are received.")
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args = parser.parse_args()
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# Create a UDP socket
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sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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sock.bind(("", args.port))
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print(f"Listening for UDP packets on port {args.port}...")
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# Set the timeout for the socket
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sock.settimeout(args.timeout)
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try:
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while True:
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try:
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# Wait for a UDP packet
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data, addr = sock.recvfrom(1024) # Buffer size is 1024 bytes
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except socket.timeout:
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print(f"No packets received for {args.timeout} seconds. Shutting down.")
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break
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except KeyboardInterrupt:
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print("\nShutting down due to user interrupt.")
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finally:
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sock.close()
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print("Socket closed.")
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if __name__ == "__main__":
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main() |