NS: Factor out gprs_nsvc_start_test() and use it
This function performs sending a NS-ALIVE PDU and starting Tns-Test,
let's use it in all places where we used to do that.
As part of this, also fix a bug where the sendto() return value (number
of bytes sent) would actually propagate up all the way to
gprs_ns_rx_reset() return value, which in turn affects the test results
on stdout.
Change-Id: I4d303117f77fabb74bbb91887b9914a81c2a084a
diff --git a/src/gb/gb_internal.h b/src/gb/gb_internal.h
index c1fa8e1..72d940f 100644
--- a/src/gb/gb_internal.h
+++ b/src/gb/gb_internal.h
@@ -4,6 +4,7 @@
#include <osmocom/gsm/tlv.h>
#include <osmocom/gprs/gprs_ns.h>
+void gprs_nsvc_start_test(struct gprs_nsvc *nsvc);
int gprs_ns_tx_sns_ack(struct gprs_nsvc *nsvc, uint8_t trans_id, uint8_t *cause,
const struct gprs_ns_ie_ip4_elem *ip4_elems,unsigned int num_ip4_elems);