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get_crc, check if input is not bytes

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This commit is contained in:
Mashintime 2023-11-18 03:28:43 -05:00
parent 07e6c33e89
commit dc843276c2
1 changed files with 11 additions and 11 deletions
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22
modem/helpers.py
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@ -68,13 +68,13 @@ def get_crc_16(data) -> bytes:
Returns:
CRC-16 (CCITT) of the provided data as bytes
"""
if not isinstance(data, (bytes)):
data = bytes(data,"utf-8")
crc_algorithm = crcengine.new("crc16-ccitt-false") # load crc16 library
crc_data = crc_algorithm(data)
crc_data = crc_data.to_bytes(2, byteorder="big")
return crc_data
return crc_algorithm(data).to_bytes(2, byteorder="big")
def get_crc_24(data) -> bytes:
def get_crc_24(data: bytes) -> bytes:
"""Author: DJ2LS
Get the CRC24-OPENPGP of a byte string
@ -88,6 +88,8 @@ def get_crc_24(data) -> bytes:
Returns:
CRC-24 (OpenPGP) of the provided data as bytes
"""
if not isinstance(data, (bytes)):
data = bytes(data,"utf-8")
crc_algorithm = crcengine.create(
0x864CFB,
24,
@ -97,9 +99,7 @@ def get_crc_24(data) -> bytes:
xor_out=0,
name="crc-24-openpgp",
)
crc_data = crc_algorithm(data)
crc_data = crc_data.to_bytes(3, byteorder="big")
return crc_data
return crc_algorithm(data).to_bytes(3,byteorder="big")
def get_crc_32(data: bytes) -> bytes:
@ -115,10 +115,10 @@ def get_crc_32(data: bytes) -> bytes:
Returns:
CRC-32 of the provided data as bytes
"""
if not isinstance(data, (bytes)):
data = bytes(data,"utf-8")
crc_algorithm = crcengine.new("crc32") # load crc32 library
crc_data = crc_algorithm(data)
crc_data = crc_data.to_bytes(4, byteorder="big")
return crc_data
return crc_algorithm(data).to_bytes(4, byteorder="big")
def add_to_heard_stations(dxcallsign, dxgrid, datatype, snr, offset, frequency, heard_stations_list):