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35 lines
890 B
35 lines
890 B
import subprocess
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def scan(interface="wlan0"):
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result = []
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try:
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r = subprocess.check_output(["iwlist", interface, "scan"], encoding='utf8')
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mac = None
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for line in r.split('\n'):
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if "Address" in line:
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# Based on the adapter eithere a percentage or dBm is returned
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# Add previous network in case no dBm signal level was seen
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if mac is not None:
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result.append({"mac": mac})
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mac = None
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mac = line.split(' ')[-1]
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elif "dBm" in line:
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try:
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level = line.split('Signal level=')[1]
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rss = int(level.split(' ')[0])
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result.append({"mac": mac, "rss": rss})
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mac = None
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except ValueError:
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continue
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# Add last network if no dBm was found
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if mac is not None:
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result.append({"mac": mac})
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return result
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except Exception:
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return None
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