Implemented support for TightVNC protocol extensions in the server code. This version has one incompatibility with TightVNC 1.3.x viewers - such viewers would not be able to connect without authentication. This will be fixed in the nearest time.

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@651 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/common/rfb/CapsList.cxx b/common/rfb/CapsList.cxx
new file mode 100644
index 0000000..e5f0aff
--- /dev/null
+++ b/common/rfb/CapsList.cxx
@@ -0,0 +1,81 @@
+/* Copyright (C) 2006 Constantin Kaplinsky. All Rights Reserved.
+ * 
+ * This 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 software 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 software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+//
+// CapsList class implementation.
+// FIXME: Extend the comment.
+//
+
+#include <rfb/CapsList.h>
+#include <rdr/OutStream.h>
+
+using namespace rfb;
+
+const char *const CapsList::VENDOR_STD = "STDV";
+const char *const CapsList::VENDOR_TIGHT = "TGHT";
+
+CapsList::CapsList(int maxCaps)
+  : CapsContainer(maxCaps)
+{
+}
+
+CapsList::~CapsList()
+{
+}
+
+void
+CapsList::addStandard(rdr::U32 code, const char *name)
+{
+  add3rdParty(code, name, VENDOR_STD);
+}
+
+void
+CapsList::addTightExt(rdr::U32 code, const char *name)
+{
+  add3rdParty(code, name, VENDOR_TIGHT);
+}
+
+void
+CapsList::add3rdParty(rdr::U32 code, const char *name, const char *vendor)
+{
+  add(code, vendor, name);
+
+  // NOTE: This code is a bit tricky and not the most efficient. However,
+  //       that's not a problem as we prefer simplicity to performance here.
+  //       Here we need to "enable capability" but that requires comparing
+  //       name and vendor strings. So we just make CapsContainer compare
+  //       the same strings with themselves.
+  CapabilityInfo tmp;
+  if (getInfo(code, &tmp))
+    enable(&tmp);
+}
+
+void
+CapsList::write(rdr::OutStream* os) const
+{
+  int count = getSize();
+  CapabilityInfo cap;
+
+  for (int i = 0; i < count; i++) {
+    getInfo(getByOrder(i), &cap);
+    os->writeU32(cap.code);
+    os->writeBytes(&cap.vendorSignature, 4);
+    os->writeBytes(&cap.nameSignature, 8);
+  }
+}
+