tree 4e9ba1b40828af8cbfe97a6ce7872bfc8cbc0c66
parent c01cff1a502b95ef6d5348e4b8bbfcf746b5d2e4
author Neels Hofmeyr <neels@hofmeyr.de> 1544040156 +0100
committer Harald Welte <laforge@gnumonks.org> 1544461590 +0000

add osmo_bcd2str()

Add a standalone bcd-to-string conversion function with generic parameters.
Add a regression test in utils_test.c.

So far there is no single universal implementation that converts a BCD to a
string. I could only find gsm48_mi_to_string(), which also interprets
surrounding bytes, MI type and TMSI as non-BCD value.

The idea is to use this function from gsm48_mi_to_string() and similar
implementations in subsequent commits.

Root cause: in osmo-msc, I want to have an alternative MI-to-string function
for composing an FSM name, which needs the BCD part of gsm48_mi_to_string() but
not the TMSI part.

Change-Id: I86b09d37ceef33331c1a56046a5443127d6c6be0