tree da4d89478ebf938b85464a5a0969b03d8486d337
parent e0fa9b078600275e5ec4b4e41026f17161fe53af
author Philipp Maier <pmaier@sysmocom.de> 1695300726 +0200
committer Philipp Maier <pmaier@sysmocom.de> 1695369587 +0200

PCUIF_Components: ensure clean IMSI string

When receiving an IMSI from PCUIF (see type record PCUIF_pch), it is
represented as a null terminated string. The field is set to be 17
characters wide with a pdding of zeros at the end (as it ought to be
for a null terminated string). Unfortunately TTCN3 will not chop off
the trailing zeros, and also include them when the string length is
determined using lengthof(). This means we must take care of this
ourselves.

Let's use a regular expression to make sure any non numerical digits
are trimmed off before passing the IMSI string on to higher layers.

Related: OS#5927
Change-Id: I7bfea59a306e75211856e4e80985ebf000c42224