From fcf81b5deb8d02ba45907e90bb6668c67986a028 Mon Sep 17 00:00:00 2001 From: Max Date: Thu, 19 Oct 2017 15:50:44 +0200 Subject: Make osmo_apn_to_str() more robust Previously it would crash on NULL input. Let's handle it gracefully instead. Corresponding test case is also added. Change-Id: I587153e49d1c92128fac3ae5c124adba9592378e --- src/gsm/apn.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'src') diff --git a/src/gsm/apn.c b/src/gsm/apn.c index 8d4b2bfc..f8303db9 100644 --- a/src/gsm/apn.c +++ b/src/gsm/apn.c @@ -53,6 +53,9 @@ char * osmo_apn_to_str(char *out_str, const uint8_t *apn_enc, size_t apn_enc_len char *str = out_str; size_t rest_chars = apn_enc_len; + if (!apn_enc) + return NULL; + while (rest_chars > 0 && apn_enc[0]) { size_t label_size = apn_enc[0]; if (label_size + 1 > rest_chars) -- cgit v1.2.3