fixup! add assert when adding an option

RIOT-OS · May 27, 2018 · 47d1f91 · 47d1f91
1 parent f36a556
commit 47d1f91
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/sys/net/application_layer/nanocoap/nanocoap.c b/sys/net/application_layer/nanocoap/nanocoap.c
@@ -608,6 +608,8 @@ size_t coap_put_option_uri(uint8_t *buf, uint16_t lastonum, const char *uri, uin
 static ssize_t _add_opt_pkt(coap_pkt_t *pkt, uint16_t optnum, uint8_t *val,
                             size_t val_len)
 {
+    assert(pkt->options_len < NANOCOAP_NOPTS_MAX);
+
     uint16_t lastonum = (pkt->options_len)
             ? pkt->options[pkt->options_len - 1].opt_num : 0;
     assert(optnum >= lastonum);