MkAssignment function doesn't work #1

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wp · 2021-04-14T17:04:31-05:00

wp commented

2021-04-14 17:04:31 -05:00

Problem is here: c3c125fe19/vendortools/nfutil.py (L210)

In Python2, chr must have provided a binary object, but in Python 3 it's returned as a string. If ip_type is sent as 0 (integer type), chr(0) returns '\x00', which is a string. Struct expects b'\x00'.

>>> msg = nfutil.MkAssignment(seq, device['eth_addr'], device['ip_type'], '192.168.0.123', '255.255.255.0', '192.168.0.1')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/wolfpack/Downloads/progpib/vendortools/nfutil.py", line 213, in MkAssignment
    socket.inet_aton(gateway)
struct.error: char format requires a bytes object of length 1

Problem is here: http://git.groesz.org/wp/progpib/src/commit/c3c125fe19481ed2d831aaa85864d1ff212011ba/vendortools/nfutil.py#L210 In Python2, chr must have provided a binary object, but in Python 3 it's returned as a string. If ip_type is sent as 0 (integer type), chr(0) returns '\x00', which is a string. Struct expects b'\x00'. ```python >>> msg = nfutil.MkAssignment(seq, device['eth_addr'], device['ip_type'], '192.168.0.123', '255.255.255.0', '192.168.0.1') Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/home/wolfpack/Downloads/progpib/vendortools/nfutil.py", line 213, in MkAssignment socket.inet_aton(gateway) struct.error: char format requires a bytes object of length 1 ```

wp added the

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label 2021-04-14 19:35:48 -05:00

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Reference: Groesz.org/progpib#1