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commands: do not use b2h with a string

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The function h2b expects a bytearray and must not be used on a string.
This is also true for nullstrings ('').

Related: OS#6869
Change-Id: I0e28e6ec476901bf19aa0f8640e41c74aa6e3aa2
This commit is contained in:
Philipp Maier
2025-10-21 16:48:59 +02:00
parent e5f39fbd34
commit 1ab2f8dd9d
1 changed files with 1 additions and 1 deletions
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2
pySim/commands.py
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@@ -141,7 +141,7 @@ class SimCardCommands:
Returns: Returns:
Tuple of (decoded_data, sw) Tuple of (decoded_data, sw)
""" """
cmd = cmd_constr.build(cmd_data) if cmd_data else '' cmd = cmd_constr.build(cmd_data) if cmd_data else b''
lc = i2h([len(cmd)]) if cmd_data else '' lc = i2h([len(cmd)]) if cmd_data else ''
le = '00' if resp_constr else '' le = '00' if resp_constr else ''
pdu = ''.join([cla, ins, p1, p2, lc, b2h(cmd), le]) pdu = ''.join([cla, ins, p1, p2, lc, b2h(cmd), le])