x0vncserver does not support SetDesktopSize; remove -AcceptSetDesktopSize

Add a Configuration::removeParam to support such cases.

common/rfb/Configuration.cxx

@@ -1,5 +1,6 @@
 /* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
  * Copyright 2004-2005 Cendio AB.
+ * Copyright 2017 Peter Astrand <astrand@cendio.se> for Cendio AB
  * 
  * This is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -166,6 +167,23 @@ void Configuration::list(int width, int nameWidth) {
 }
 
 
+bool Configuration::remove(const char* param) {
+  VoidParameter *current = head;
+  VoidParameter **prevnext = &head;
+
+  while (current) {
+    if (strcasecmp(current->getName(), param) == 0) {
+      *prevnext = current->_next;
+      return true;
+    }
+    prevnext = &current->_next;
+    current = current->_next;
+  }
+
+  return false;
+}
+
+
 // -=- VoidParameter
 
 VoidParameter::VoidParameter(const char* name_, const char* desc_,

common/rfb/Configuration.h

@@ -80,6 +80,9 @@ namespace rfb {
     // - List the parameters of this Configuration group
     void list(int width=79, int nameWidth=10);
 
+    // - Remove a parameter from this Configuration group
+    bool remove(const char* param);
+
     // - readFromFile
     //   Read configuration parameters from the specified file.
     void readFromFile(const char* filename);
@@ -116,6 +119,9 @@ namespace rfb {
     static void listParams(int width=79, int nameWidth=10) {
       global()->list(width, nameWidth);
     }
+    static bool removeParam(const char* param) {
+      return global()->remove(param);
+    }
 
   private:
     friend class VoidParameter;

unix/x0vncserver/x0vncserver.cxx

@@ -258,6 +258,9 @@ int main(int argc, char** argv)
 
   Configuration::enableServerParams();
 
+  // Disable configuration parameters which we do not support
+  Configuration::removeParam("AcceptSetDesktopSize");
+
   for (int i = 1; i < argc; i++) {
     if (Configuration::setParam(argv[i]))
       continue;