0041cd9660
Fix camera switching and Contacts/SMS activity routing across shared hosts. Integrate Marketplace installation and native standalone recovery tools, Bluetooth runtime packages and trusted certificates. Update English/French READMEs and the shared changelog with tested scope and remaining radio/audio/Bluetooth limitations. Preview17 remains the existing APK; no new native image is released. Validation: shared JavaScript and native Python tests; Android packaging and payload parity from an isolated publication checkout.
25 lines
971 B
Python
25 lines
971 B
Python
# SPDX-License-Identifier: MPL-2.0
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"""Decode the read-only TUNRAW1 stream; reject truncation and overlapping blocks."""
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import struct
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def exact(stream, length):
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data=bytearray()
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while len(data)<length:
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block=stream.read(length-len(data))
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if not block:raise ValueError('Truncated backup stream')
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data.extend(block)
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return bytes(data)
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def receive(stream, target, expected_size):
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if exact(stream,8)!=b'TUNRAW1\0':raise ValueError('Unexpected backup protocol')
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end=0
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while True:
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offset,length=struct.unpack('<QQ',exact(stream,16))
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if not length:
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if offset!=expected_size or stream.read(1):raise ValueError('Backup size or trailer mismatch')
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target.truncate(expected_size)
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return
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if offset<end or length>65536 or offset+length>expected_size:raise ValueError('Invalid backup extent')
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target.seek(offset);target.write(exact(stream,length));end=offset+length
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