C++ (Cpp) proto_find_finfo Examples

Example #1

File: epan.c Project: MultipathDTLS/wireshark

gboolean
epan_dissect_packet_contains_field(epan_dissect_t* edt,
                                   const char *field_name)
{
    GPtrArray* array;
    int        field_id;
    gboolean   contains_field;

    if (!edt || !edt->tree)
        return FALSE;
    field_id = proto_get_id_by_filter_name(field_name);
    if (field_id < 0)
        return FALSE;
    array = proto_find_finfo(edt->tree, field_id);
    contains_field = (array->len > 0) ? TRUE : FALSE;
    g_ptr_array_free(array, TRUE);
    return contains_field;
}

Example #2

/* Print info for a 'geninfo' pseudo-protocol. This is required by
 * the PDML spec. The information is contained in Wireshark's 'frame' protocol,
 * but we produce a 'geninfo' protocol in the PDML to conform to spec.
 * The 'frame' protocol follows the 'geninfo' protocol in the PDML. */
static void
print_pdml_geninfo(proto_tree *tree, FILE *fh)
{
	guint32 num, len, caplen;
	nstime_t *timestamp;
	GPtrArray *finfo_array;
	field_info *frame_finfo;

	/* Get frame protocol's finfo. */
	finfo_array = proto_find_finfo(tree, proto_frame);
	if (g_ptr_array_len(finfo_array) < 1) {
		return;
	}
	frame_finfo = (field_info *)finfo_array->pdata[0];
	g_ptr_array_free(finfo_array, TRUE);

	/* frame.number --> geninfo.num */
	finfo_array = proto_find_finfo(tree, hf_frame_number);
	if (g_ptr_array_len(finfo_array) < 1) {
		return;
	}
	num = fvalue_get_uinteger(&((field_info*)finfo_array->pdata[0])->value);
	g_ptr_array_free(finfo_array, TRUE);

	/* frame.frame_len --> geninfo.len */
	finfo_array = proto_find_finfo(tree, hf_frame_len);
	if (g_ptr_array_len(finfo_array) < 1) {
		return;
	}
	len = fvalue_get_uinteger(&((field_info*)finfo_array->pdata[0])->value);
	g_ptr_array_free(finfo_array, TRUE);

	/* frame.cap_len --> geninfo.caplen */
	finfo_array = proto_find_finfo(tree, hf_frame_capture_len);
	if (g_ptr_array_len(finfo_array) < 1) {
		return;
	}
	caplen = fvalue_get_uinteger(&((field_info*)finfo_array->pdata[0])->value);
	g_ptr_array_free(finfo_array, TRUE);

	/* frame.time --> geninfo.timestamp */
	finfo_array = proto_find_finfo(tree, hf_frame_arrival_time);
	if (g_ptr_array_len(finfo_array) < 1) {
		return;
	}
	timestamp = (nstime_t *)fvalue_get(&((field_info*)finfo_array->pdata[0])->value);
	g_ptr_array_free(finfo_array, TRUE);

	/* Print geninfo start */
	fprintf(fh,
"  <proto name=\"geninfo\" pos=\"0\" showname=\"General information\" size=\"%u\">\n",
		frame_finfo->length);

	/* Print geninfo.num */
	fprintf(fh,
"    <field name=\"num\" pos=\"0\" show=\"%u\" showname=\"Number\" value=\"%x\" size=\"%u\"/>\n",
		num, num, frame_finfo->length);

	/* Print geninfo.len */
	fprintf(fh,
"    <field name=\"len\" pos=\"0\" show=\"%u\" showname=\"Frame Length\" value=\"%x\" size=\"%u\"/>\n",
		len, len, frame_finfo->length);

	/* Print geninfo.caplen */
	fprintf(fh,
"    <field name=\"caplen\" pos=\"0\" show=\"%u\" showname=\"Captured Length\" value=\"%x\" size=\"%u\"/>\n",
		caplen, caplen, frame_finfo->length);

	/* Print geninfo.timestamp */
	fprintf(fh,
"    <field name=\"timestamp\" pos=\"0\" show=\"%s\" showname=\"Captured Time\" value=\"%d.%09d\" size=\"%u\"/>\n",
		abs_time_to_str(timestamp, ABSOLUTE_TIME_LOCAL, TRUE), (int) timestamp->secs, timestamp->nsecs, frame_finfo->length);

	/* Print geninfo end */
	fprintf(fh,
"  </proto>\n");
}