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@@ -75,7 +75,7 @@ def rx_mqtt(mc, userdata, message):
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75
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75
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if __name__ == "__main__":
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76
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76
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parser = argparse.ArgumentParser(description='This is a mqtt sniffer.')
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77
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parser.add_argument('-f', dest='hostname', default='localhost', help='Hostname of the mqtt server')
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78
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- parser.add_argument('-p', dest='port', default=1883, help='Port of the mqtt server')
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78
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+ parser.add_argument('-p', dest='port', default=1883, type=int, help='Port of the mqtt server')
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79
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parser.add_argument('-n', dest='no_credentials', action='store_true', help='Avoid asking for credentials')
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80
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80
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parser.add_argument('-u', dest='username', default=None, help='Set username for mqtt server')
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81
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81
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parser.add_argument('-t', dest='topicfilter', default="", help='Set topic filter')
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