de9233f84a
Rather than returning the negative error value. This is intended to close #7606, though I did not test with mqtt. Instead, I created a simple standalone test program: ```python import wifi, socketpool, ssl, time #wifi.radio.connect(<omitted>) import socketpool socket = socketpool.SocketPool(wifi.radio) ctx = ssl.create_default_context() b = bytearray(8) s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sss = ctx.wrap_socket(s, server_hostname='example.com') sss.connect(('example.com', 443)) sss.setblocking(False) r = sss.recv_into(b) print(r, b) # prints 4294967285 which is -11 as unsigned sss.close() ``` Before the change, r was the out of range value 4294967285. After the change, the recv_into call raises OSError instead. This is comparable to the behavior on standard Python, though an SSLWantReadError is raised instead. The original (mis)behavior seems to match what was uncovered deep inside minimqtt by adding logging: ``` 370.578: DEBUG - PKT: _sock_exact_recv: recv_len = 4294967285 ```
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