1 files changed, 99 insertions, 0 deletions
diff --git a/epan/dissectors/packet-time.c b/epan/dissectors/packet-time.c
new file mode 100644
index 0000000000..73c115d13d
--- /dev/null
+++ b/epan/dissectors/packet-time.c
@@ -0,0 +1,99 @@
+/* packet-time.c
+ * Routines for Time Protocol (RFC 868) packet dissection
+ *
+ * Richard Sharpe <rsharpe@ns.aus.com>
+ *
+ * $Id$
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@ethereal.com>
+ * Copyright 1998 Gerald Combs
+ *
+ * Copied from packet-tftp.c
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <epan/packet.h>
+
+static int proto_time = -1;
+static int hf_time_time = -1;
+
+static gint ett_time = -1;
+
+#define UDP_PORT_TIME    37
+
+static void
+dissect_time(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+  proto_tree	*time_tree;
+  proto_item	*ti;
+
+  if (check_col(pinfo->cinfo, COL_PROTOCOL))
+    col_set_str(pinfo->cinfo, COL_PROTOCOL, "TIME");
+
+  if (check_col(pinfo->cinfo, COL_INFO)) {
+    col_add_fstr(pinfo->cinfo, COL_INFO, "TIME %s",
+		 pinfo->srcport == pinfo->match_port ? "Response":"Request");
+  }
+
+  if (tree) {
+
+    ti = proto_tree_add_item(tree, proto_time, tvb, 0, -1, FALSE);
+    time_tree = proto_item_add_subtree(ti, ett_time);
+
+    proto_tree_add_text(time_tree, tvb, 0, 0,
+			pinfo->srcport==UDP_PORT_TIME? "Type: Response":"Type: Request");
+    if (pinfo->srcport == UDP_PORT_TIME) {
+      /* seconds since 1900-01-01 00:00:00 GMT, *not* 1970 */
+      guint32 delta_seconds = tvb_get_ntohl(tvb, 0);
+      proto_tree_add_uint_format(time_tree, hf_time_time, tvb, 0, 4,
+				 delta_seconds, "%s",
+				 abs_time_secs_to_str(delta_seconds-(guint32)(70*365+18)*24*3600));
+    }
+  }
+}
+
+void
+proto_register_time(void)
+{
+
+  static hf_register_info hf[] = {
+    { &hf_time_time,
+      { "Time", "time.time",
+	FT_UINT32, BASE_DEC, NULL, 0x0,
+      	"Seconds since 00:00 (midnight) 1 January 1900 GMT", HFILL }}
+  };
+  static gint *ett[] = {
+    &ett_time,
+  };
+
+  proto_time = proto_register_protocol("Time Protocol", "TIME", "time");
+  proto_register_field_array(proto_time, hf, array_length(hf));
+  proto_register_subtree_array(ett, array_length(ett));
+}
+
+void
+proto_reg_handoff_time(void)
+{
+  dissector_handle_t time_handle;
+
+  time_handle = create_dissector_handle(dissect_time, proto_time);
+  dissector_add("udp.port", UDP_PORT_TIME, time_handle);
+}