Change in pysim[master]: move SW matching to a generic utility function

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laforge gerrit-no-reply at lists.osmocom.org
Tue Mar 2 06:36:05 UTC 2021


laforge has uploaded this change for review. ( https://gerrit.osmocom.org/c/pysim/+/23171 )


Change subject: move SW matching to a generic utility function
......................................................................

move SW matching to a generic utility function

This will allow using it outside the transport/__init__.py

Change-Id: Id26dfefa85d91e3b3a23e0049f3b833e29cb1cef
---
M pySim/transport/__init__.py
M pySim/utils.py
2 files changed, 17 insertions(+), 10 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/pysim refs/changes/71/23171/1

diff --git a/pySim/transport/__init__.py b/pySim/transport/__init__.py
index 27901d7..8ccb41b 100644
--- a/pySim/transport/__init__.py
+++ b/pySim/transport/__init__.py
@@ -4,6 +4,7 @@
 """
 
 from pySim.exceptions import *
+from pySim.utils import sw_match
 
 #
 # Copyright (C) 2009-2010  Sylvain Munaut <tnt at 246tNt.com>
@@ -93,14 +94,6 @@
 		"""
 		rv = self.send_apdu(pdu)
 
-		# Create a masked version of the returned status word
-		sw_masked = ""
-		for i in range(0, 4):
-			if sw.lower()[i] == '?':
-				sw_masked = sw_masked + '?'
-			else:
-				sw_masked = sw_masked + rv[1][i].lower()
-
-		if sw.lower() != sw_masked:
-			raise SwMatchError(sw.lower(), rv[1])
+		if not sw_match(rv[1], pattern=sw):
+			raise SwMatchError(rv[1], sw.lower())
 		return rv
diff --git a/pySim/utils.py b/pySim/utils.py
index a733d87..915562f 100644
--- a/pySim/utils.py
+++ b/pySim/utils.py
@@ -759,3 +759,17 @@
 		return 0x00
 
 	return None
+
+def sw_match(sw, pattern):
+	"""Match given SW against given pattern."""
+	# Create a masked version of the returned status word
+	sw_lower = sw.lower()
+	sw_masked = ""
+	for i in range(0, 4):
+		if sw_lower[i] == '?':
+			sw_masked = sw_masked + '?'
+		elif sw_lower[i] == 'x':
+			sw_masked = sw_masked + 'x'
+		else:
+			sw_masked = sw_masked + sw_lower[i]
+	return sw == pattern

-- 
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Gerrit-Project: pysim
Gerrit-Branch: master
Gerrit-Change-Id: Id26dfefa85d91e3b3a23e0049f3b833e29cb1cef
Gerrit-Change-Number: 23171
Gerrit-PatchSet: 1
Gerrit-Owner: laforge <laforge at osmocom.org>
Gerrit-MessageType: newchange
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