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Diffstat (limited to 'gr-digital/python/digital/crc.py')
| -rw-r--r-- | gr-digital/python/digital/crc.py | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/gr-digital/python/digital/crc.py b/gr-digital/python/digital/crc.py deleted file mode 100644 index 2cec0d446e..0000000000 --- a/gr-digital/python/digital/crc.py +++ /dev/null @@ -1,32 +0,0 @@ -# -# Copyright 2005,2007,2011 Free Software Foundation, Inc. -# -# This file is part of GNU Radio -# -# SPDX-License-Identifier: GPL-3.0-or-later -# -""" -Backward-compatible wrapper for CRC32 -""" - -import zlib -import struct - -def gen_and_append_crc32(data): - """ - Return a binary string with its CRC appended - """ - return data + struct.pack(">I", zlib.crc32(data)) - -def check_crc32(data): - """ - Check if the byte string 's' has a valid CRC on its last four bytes - - Returns a tuple (is CRC valid, string-without-CRC). - """ - if len(data) < 4: - return (False, '') - msg = data[:-4] # Message without the CRC - actual = zlib.crc32(msg) - (expected,) = struct.unpack(">I", data[-4:]) - return (actual == expected, msg) |