diff options
| -rw-r--r-- | epan/dissectors/packet-x29.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/epan/dissectors/packet-x29.c b/epan/dissectors/packet-x29.c index 02820ccd52..0bb2faaff8 100644 --- a/epan/dissectors/packet-x29.c +++ b/epan/dissectors/packet-x29.c @@ -79,15 +79,20 @@ static int dissect_x29(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data) { int offset = 0; - proto_tree *x29_tree; - proto_item *ti; - gboolean *q_bit_set = (gboolean *)data; + proto_tree *x29_tree; + proto_item *ti; + gboolean *q_bit_set; guint8 msg_code; guint8 error_type; guint8 type_ref; gint next_offset; int linelen; + /* Reject the packet if data is NULL */ + if (data == NULL) + return 0; + q_bit_set = (gboolean *)data; + col_set_str(pinfo->cinfo, COL_PROTOCOL, "X.29"); col_clear(pinfo->cinfo, COL_INFO); @@ -253,12 +258,12 @@ proto_register_x29(void) { "Invalid message code", "x29.inv_msg_code", FT_UINT8, BASE_HEX, VALS(message_code_vals), 0x0, "X.29 Error PAD message invalid message code", HFILL }}, - }; + }; static gint *ett[] = { &ett_x29, }; - proto_x29 = proto_register_protocol("X.29", "X.29", "x29"); + proto_x29 = proto_register_protocol("X.29", "X.29", "x29"); proto_register_field_array(proto_x29, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); } |