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Keep control escapes safe in SSID labels

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This commit is contained in:
David Heinemeier Hansson
2026-07-31 19:13:52 -07:00
parent bac31ff892
commit a734713c42
2 changed files with 17 additions and 12 deletions
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test/shell.d/network-test.sh
+4 -2
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@@ -27,13 +27,15 @@ assertDeepEqual(
'network parses detail key values'
)
assertEqual(network.decodeIwSsid('Cafe\\xe2\\x80\\x99'), 'Cafe’', 'network decodes UTF-8 SSID bytes')
assertEqual(network.decodeIwSsid('Smile \\xf0\\x9f\\x98\\x80'), 'Smile 😀', 'network decodes emoji SSID bytes')
assertEqual(network.decodeIwSsid('\\x20Cafe\\x20'), ' Cafe ', 'network preserves edge spaces in SSIDs')
assertEqual(network.decodeIwSsid('slash\\x5cname'), 'slash\\name', 'network decodes SSID backslashes once')
assertEqual(network.decodeIwSsid('invalid\\xff'), 'invalid\\xff', 'network preserves invalid UTF-8 escapes')
assertEqual(network.decodeIwSsid('already 😀'), 'already 😀', 'network safely preserves unexpected non-BMP input')
assertDeepEqual(
network.parseKeyValue('ssid\tline\\x0abreak\\x09tab\\x00nul\nsignal_dbm\t-40\n'),
{ ssid: 'line\nbreak\ttab\0nul', signal_dbm: '-40' },
'network decodes control bytes after parsing detail records'
{ ssid: 'line\\x0abreak\\x09tab\\x00nul', signal_dbm: '-40' },
'network leaves control-byte escapes safe for single-line display'
)
assertDeepEqual(
network.throughputState({ prevIface: '', prevSampleTime: 0 }, { iface: 'wlan0', rx_bytes: '100', tx_bytes: '50' }, 10),