handle configurable zoom buttons

[presencevnc] / libvnc / examples / backchannel.c

diff --git a/libvnc/examples/backchannel.c b/libvnc/examples/backchannel.c
deleted file mode 100644 (file)
index 6a21390..0000000
--- a/libvnc/examples/backchannel.c
+++ /dev/null
@@ -1,113 +0,0 @@
-#include <rfb/rfb.h>
-
-/*
- * This is a simple example demonstrating a protocol extension.
- *
- * The "back channel" permits sending commands between client and server.
- * It works by sending plain text messages.
- *
- * As suggested in the RFB protocol, the back channel is enabled by asking
- * for a "pseudo encoding", and enabling the back channel on the client side
- * as soon as it gets a back channel message from the server.
- *
- * This implements the server part.
- *
- * Note: If you design your own extension and want it to be useful for others,
- * too, you should make sure that
- *
- * - your server as well as your client can speak to other clients and
- *   servers respectively (i.e. they are nice if they are talking to a
- *   program which does not know about your extension).
- *
- * - if the machine is little endian, all 16-bit and 32-bit integers are
- *   swapped before they are sent and after they are received.
- *
- */
-
-#define rfbBackChannel 155
-
-typedef struct backChannelMsg {
-       uint8_t type;
-       uint8_t pad1;
-       uint16_t pad2;
-       uint32_t size;
-} backChannelMsg;
-
-rfbBool enableBackChannel(rfbClientPtr cl, void** data, int encoding)
-{
-       if(encoding == rfbBackChannel) {
-               backChannelMsg msg;
-               const char* text="Server acknowledges back channel encoding\n";
-               uint32_t length = strlen(text)+1;
-               int n;
-
-               rfbLog("Enabling the back channel\n");
-
-               msg.type = rfbBackChannel;
-               msg.size = Swap32IfLE(length);
-               if((n = rfbWriteExact(cl, (char*)&msg, sizeof(msg))) <= 0 ||
-                               (n = rfbWriteExact(cl, text, length)) <= 0) {
-                       rfbLogPerror("enableBackChannel: write");
-               }
-               return TRUE;
-       }
-       return FALSE;
-}
-
-static rfbBool handleBackChannelMessage(rfbClientPtr cl, void* data,
-               const rfbClientToServerMsg* message)
-{
-       if(message->type == rfbBackChannel) {
-               backChannelMsg msg;
-               char* text;
-               int n;
-               if((n = rfbReadExact(cl, ((char*)&msg)+1, sizeof(backChannelMsg)-1)) <= 0) {
-                       if(n != 0)
-                               rfbLogPerror("handleBackChannelMessage: read");
-                       rfbCloseClient(cl);
-                       return TRUE;
-               }
-               msg.size = Swap32IfLE(msg.size);
-               if((text = malloc(msg.size)) == NULL) {
-                       rfbErr("Could not allocate %d bytes\n", msg.size);
-                       return TRUE;
-               }
-               if((n = rfbReadExact(cl, text, msg.size)) <= 0) {
-                       if(n != 0)
-                               rfbLogPerror("handleBackChannelMessage: read");
-                       rfbCloseClient(cl);
-                       return TRUE;
-               }
-               rfbLog("got message:\n%s\n", text);
-               free(text);
-               return TRUE;
-       }
-       return FALSE;
-}
-
-static int backChannelEncodings[] = {rfbBackChannel, 0};
-
-static rfbProtocolExtension backChannelExtension = {
-       NULL,                           /* newClient */
-       NULL,                           /* init */
-       backChannelEncodings,           /* pseudoEncodings */
-       enableBackChannel,              /* enablePseudoEncoding */
-       handleBackChannelMessage,       /* handleMessage */
-       NULL,                           /* close */
-       NULL,                           /* usage */
-       NULL,                           /* processArgument */
-       NULL                            /* next extension */
-};
-
-int main(int argc,char** argv)
-{                                                                
-       rfbScreenInfoPtr server;
-
-       rfbRegisterProtocolExtension(&backChannelExtension);
-
-       server=rfbGetScreen(&argc,argv,400,300,8,3,4);
-       server->frameBuffer=(char*)malloc(400*300*4);
-       rfbInitServer(server);           
-       rfbRunEventLoop(server,-1,FALSE);
-       return(0);
-}