Avoid generating zero-length packets
I used the construct like f_rnd_octstring(f_rnd_int(100)) in a number
of places to generate random-length packets with randomized length.
The problem I didn't realize is that f_rnd_int() of course can also
return '0', which would generate zero-length packets. This may be
permitted in some protocols, but it leads to problems e.g. when trying
to send a UDP packet of zero length (which the kernel will not do).
So let's introduce
* f_rnd_int_nonzero() for returning non-zero randomized integers
* f_rnd_octstring_rnd_len() for returning a random-length random payload
octet string
* replace all f_rnd_octstring(f_rnd_int()) call sites with the new
function.
Change-Id: I818a113ff8d2a2f7cab2ec7d9c8661607c6331d6
Closes: OS#5528
diff --git a/fr/FR_Tests.ttcn b/fr/FR_Tests.ttcn
index b7a56c3..65029c1 100644
--- a/fr/FR_Tests.ttcn
+++ b/fr/FR_Tests.ttcn
@@ -276,7 +276,7 @@
var integer ran_index := 0;
var template (value) PDU_LLC llc_tx;
var template (present) PDU_LLC llc_rx_exp;
- var octetstring llc_payload := f_rnd_octstring(f_rnd_int(max_llc_payload_len));
+ var octetstring llc_payload := f_rnd_octstring_rnd_len(max_llc_payload_len);
var PDU_LLC llc_rx;
timer T := 5.0;