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check for correct length of buffer

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suaveolent 2024-02-24 09:45:36 +01:00
parent 1843cc2b18
commit 096f2ddedb
1 changed files with 4 additions and 3 deletions
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7
hoymiles_wifi/inverter.py
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@ -262,10 +262,11 @@ class Inverter:
raise ValueError("Buffer is too short for unpacking")
crc16_target, read_length = struct.unpack('>HH', buf[6:10])
response_as_bytes = buf[10:10 + read_length]
if(len(buf) < 10 + read_length):
raise ValueError("Buffer is too short for unpacking")
if(len(buf) != read_length):
raise ValueError("Buffer is incomplete")
response_as_bytes = buf[10:read_length]
crc16_response = mkCrcFun(0x18005, rev=True, initCrc=0xFFFF, xorOut=0x0000)(response_as_bytes)