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commands.py: fix read_binary for lengths > 256

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fixed commit with commented changes

Change-Id: Ie9c61caa1412606254b44a3a24f26ad44950e73a
This commit is contained in:
Sebastian Viviani
2020-04-17 16:42:09 +01:00
committed by guilly@gmail.com
parent 0dc8f69217
commit 0e9f93fdd6
1 changed files with 11 additions and 2 deletions
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13
pySim/commands.py
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@@ -119,8 +119,17 @@ class SimCardCommands(object):
return (None, None)
if length is None:
length = self.__len(r) - offset
pdu = self.cla_byte + 'b0%04x%02x' % (offset, (min(256, length) & 0xff))
return self._tp.send_apdu(pdu)
total_data = ''
while offset < length:
chunk_len = min(255, length-offset)
pdu = self.cla_byte + 'b0%04x%02x' % (offset, chunk_len)
data,sw = self._tp.send_apdu(pdu)
if sw == '9000':
total_data += data
offset += chunk_len
else:
raise ValueError('Failed to read (offset %d)' % (offset))
return total_data, sw
def update_binary(self, ef, data, offset=0, verify=False):
self.select_file(ef)