From Chris Waters: MSN Messenger support.

svn path=/trunk/; revision=7045

1 files changed, 128 insertions, 0 deletions

diff --git a/packet-msn-messenger.c b/packet-msn-messenger.c
new file mode 100644
index 0000000000..1ff75d14df
--- /dev/null
+++ b/packet-msn-messenger.c
@@ -0,0 +1,128 @@
+/* packet-msn-messenger.c
+ * Routines for MSN Messenger Service packet dissection
+ * Copyright 2003, Chris Waters <chris@waters.co.nz>
+ *
+ * $Id: packet-msn-messenger.c,v 1.1 2003/01/30 18:49:47 guy Exp $
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@ethereal.com>
+ * Copyright 1998 Gerald Combs
+ *
+ * Copied from packet-pop.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 <stdio.h>
+
+#include <string.h>
+#include <glib.h>
+#include <epan/packet.h>
+#include <epan/strutil.h>
+
+static int proto_msnms = -1;
+static int hf_msnms_command = -1;
+
+static gint ett_msnms = -1;
+
+static dissector_handle_t data_handle;
+
+#define TCP_PORT_MSNMS			1863
+
+static void
+dissect_msnms(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+        proto_tree      *msnms_tree;
+	proto_item	*ti;
+	gint		offset = 0;
+	const guchar	*line;
+	gint		next_offset;
+	int		linelen;
+	int		tokenlen;
+	const guchar	*next_token;
+
+	if (check_col(pinfo->cinfo, COL_PROTOCOL))
+		col_set_str(pinfo->cinfo, COL_PROTOCOL, "MSNMS");
+
+	/*
+	 * Find the end of the first line.
+	 *
+	 * Note that "tvb_find_line_end()" will return a value that is
+	 * not longer than what's in the buffer, so the "tvb_get_ptr()"
+	 * call won't throw an exception.
+	 */
+	linelen = tvb_find_line_end(tvb, offset, -1, &next_offset, FALSE);
+	line = tvb_get_ptr(tvb, offset, linelen);
+
+
+	if (check_col(pinfo->cinfo, COL_INFO)) {
+		/*
+		 * Put the first line from the buffer into the summary.
+		 */
+		col_add_fstr(pinfo->cinfo, COL_INFO, "%s",
+			    format_text(line, linelen));
+	}
+
+	if (tree) {
+		ti = proto_tree_add_item(tree, proto_msnms, tvb, offset, -1,
+		    FALSE);
+		msnms_tree = proto_item_add_subtree(ti, ett_msnms);
+
+		/*
+		 * Show the rest of the packet as text,
+		 * a line at a time.
+		 */
+		while (tvb_offset_exists(tvb, offset)) {
+			/*
+			 * Find the end of the line.
+			 */
+			linelen = tvb_find_line_end(tvb, offset, -1,
+			    &next_offset, FALSE);
+
+			/*
+			 * Put this line.
+			 */
+			proto_tree_add_text(msnms_tree, tvb, offset,
+			    next_offset - offset, "%s",
+			    tvb_format_text(tvb, offset, next_offset - offset));
+			offset = next_offset;
+		}
+	}
+}
+
+void
+proto_register_msnms(void)
+{
+  static gint *ett[] = {
+    &ett_msnms,
+  };
+
+  proto_msnms = proto_register_protocol("MSN Messenger Service", "MSNMS", "msnms");
+  proto_register_subtree_array(ett, array_length(ett));
+}
+
+void
+proto_reg_handoff_msnms(void)
+{
+  dissector_handle_t msnms_handle;
+
+  msnms_handle = create_dissector_handle(dissect_msnms, proto_msnms);
+  dissector_add("tcp.port", TCP_PORT_MSNMS, msnms_handle);
+  data_handle = find_dissector("data");
+}