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VNC viewer

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This commit is contained in:
adamdunkels 2006-06-17 23:08:35 +00:00
parent 4dcbd9845c
commit 964fa62827
8 changed files with 1537 additions and 0 deletions
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2
apps/vnc/Makefile.vnc Normal file
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APP_SOURCES += vnc.c vnc-viewer.c vnc-draw.c
DSC_SOURCES += vnc-dsc.c

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apps/vnc/vnc-draw.h Normal file
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/*
* Copyright (c) 2002, Adam Dunkels.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This file is part of the Contiki VNC client.
*
* $Id: vnc-draw.h,v 1.1 2006/06/17 23:08:35 adamdunkels Exp $
*
*/
#ifndef __VNC_DRAW_H__
#define __VNC_DRAW_H__
#include "net/uip_arch.h"
/* Pointer to the bitmap area in memory. */
extern u8_t vnc_draw_bitmap[];
/* Initialize the vnc-draw module. */
void vnc_draw_init(void);
/* Draw one line of pixels starting at point (x, y). The pixel data is
given by the "data" argument and the length of data is given by the
"datalen" argument. The data format is one pixel per byte in bgr233
format (bbgggrrr). */
void vnc_draw_pixelline(u16_t x, u16_t y,
u8_t *data, u16_t datalen);
/* The following functions should return the x and y coordinates and
the width and height of the viewport. */
u16_t vnc_draw_viewport_x(void);
u16_t vnc_draw_viewport_y(void);
u16_t vnc_draw_viewport_w(void);
u16_t vnc_draw_viewport_h(void);
#endif /* __VNC_DRAW_H__ */

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apps/vnc/vnc-dsc.c Normal file
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/*
* Copyright (c) 2003, Adam Dunkels.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This file is part of the Contiki desktop environment
*
* $Id: vnc-dsc.c,v 1.1 2006/06/17 23:08:35 adamdunkels Exp $
*
*/
#include "sys/dsc.h"
extern struct ctk_icon vnc_icon;
/*-----------------------------------------------------------------------------------*/
DSC(vnc_dsc,
"Remote control your PC using Contiki",
"vnc.prg",
vnc_process,
&vnc_icon);
/*-----------------------------------------------------------------------------------*/
#if CTK_CONF_ICON_BITMAPS
static unsigned char vncicon_bitmap[3*3*8] = {
0x00, 0x7e, 0x40, 0x73, 0x46, 0x4c, 0x18, 0x13,
0x00, 0x00, 0xff, 0x81, 0x34, 0xc9, 0x00, 0xb6,
0x00, 0x7e, 0x02, 0xce, 0x72, 0x32, 0x18, 0x48,
0x30, 0x27, 0x24, 0x20, 0x37, 0x24, 0x20, 0x33,
0x00, 0x7b, 0x42, 0x00, 0x7b, 0x42, 0x00, 0x3b,
0x0c, 0x24, 0x24, 0x04, 0xa4, 0x24, 0x04, 0x4c,
0x12, 0x19, 0x4c, 0x46, 0x63, 0x40, 0x7c, 0x00,
0x22, 0x91, 0x00, 0xc4, 0x81, 0xff, 0x00, 0x00,
0x08, 0x18, 0x32, 0x62, 0xc6, 0x02, 0x3e, 0x00
};
#endif /* CTK_CONF_ICON_BITMAPS */
#if CTK_CONF_ICON_TEXTMAPS
static char vncicon_textmap[9] = {
'V', 'N', 'C',
'c', 'l', 'i',
'e', 'n', 't'
};
#endif /* CTK_CONF_ICON_TEXTMAPS */
#if CTK_CONF_ICONS
static struct ctk_icon vnc_icon =
{CTK_ICON("VNC viewer", vncicon_bitmap, vncicon_textmap)};
#endif /* CTK_CONF_ICONS */
/*-----------------------------------------------------------------------------------*/

42
apps/vnc/vnc-dsc.h Normal file
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/*
* Copyright (c) 2003, Adam Dunkels.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This file is part of the Contiki desktop environment
*
* $Id: vnc-dsc.h,v 1.1 2006/06/17 23:08:35 adamdunkels Exp $
*
*/
#ifndef __VNC_DSC_H__
#define __VNC_DSC_H__
#include "sys/dsc.h"
DSC_HEADER(vnc_dsc);
#endif /* __VNC_DSC_H__ */

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apps/vnc/vnc-viewer.c Normal file
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/*
* Copyright (c) 2001, Adam Dunkels.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This file is part of the uIP TCP/IP stack.
*
* $Id: vnc-viewer.c,v 1.1 2006/06/17 23:08:35 adamdunkels Exp $
*
*/
/* A micro implementation of a VNC client. VNC is a protocol for
remote network displays. See http://www.uk.research.att.com/vnc/
for information about VNC.
*/
#include "vnc-draw.h"
#include "net/uip.h"
#include "vnc-viewer.h"
#include <string.h> /* XXX for memcpy */
#include <stdio.h> /* XXX for printf */
/* RFB server initial handshaking string. */
#define RFB_SERVER_VERSION_STRING rfb_server_version_string
/* "RFB 003.003" */
static u8_t rfb_server_version_string[12] =
{82,70,66,32,48,48,51,46,48,48,51,10};
#if 0
#define PRINTF(x)
#else
#define PRINTF(x) printf x
#endif
#ifndef NULL
#define NULL (void *)0
#endif
static struct vnc_viewer_state vnc_viewer_state;
#define vs (&vnc_viewer_state)
/*-----------------------------------------------------------------------------------*/
void
vnc_viewer_init(void)
{
}
/*-----------------------------------------------------------------------------------*/
void
vnc_viewer_close(void)
{
vs->close = 1;
}
/*-----------------------------------------------------------------------------------*/
void
vnc_viewer_connect(u16_t *server, u8_t display)
{
struct uip_conn *conn;
vnc_draw_init();
memset(vs, 0, sizeof(struct vnc_viewer_state));
conn = uip_connect(server, htons(5900 + display));
if(conn == NULL) {
return;
}
tcp_markconn(conn, NULL);
vs->close = 0;
}
/*-----------------------------------------------------------------------------------*/
static void
senddata(void)
{
register u8_t *dataptr;
u16_t dataleft;
dataptr = (u8_t *)uip_appdata;
switch(vs->sendmsg) {
case VNC_SEND_VERSION:
PRINTF(("Sending VERSION_STRING\n"));
uip_send(RFB_SERVER_VERSION_STRING, sizeof(RFB_SERVER_VERSION_STRING));
break;
case VNC_SEND_AUTH:
/* Send 16 bytes of encrypted challange response. */
/* XXX: not implemented. */
PRINTF(("Sending AUTH\n"));
uip_send(uip_appdata, 16);
break;
case VNC_SEND_CINIT:
PRINTF(("Sending CINIT\n"));
/* Send one byte of client init. */
*(u8_t *)dataptr = 1;
uip_send(uip_appdata, 1);
break;
case VNC_SEND_PFMT:
PRINTF(("Sending PFMT\n"));
((struct rfb_set_pixel_format *)dataptr)->type = RFB_SET_PIXEL_FORMAT;
/* Set to BGR233 pixel format. */
((struct rfb_set_pixel_format *)dataptr)->format.bps = 8;
((struct rfb_set_pixel_format *)dataptr)->format.depth = 8;
((struct rfb_set_pixel_format *)dataptr)->format.endian = 1;
((struct rfb_set_pixel_format *)dataptr)->format.truecolor = 1;
((struct rfb_set_pixel_format *)dataptr)->format.red_max = htons(7);
((struct rfb_set_pixel_format *)dataptr)->format.green_max = htons(7);
((struct rfb_set_pixel_format *)dataptr)->format.blue_max = htons(3);
((struct rfb_set_pixel_format *)dataptr)->format.red_shift = 0;
((struct rfb_set_pixel_format *)dataptr)->format.green_shift = 3;
((struct rfb_set_pixel_format *)dataptr)->format.blue_shift = 6;
uip_send(uip_appdata, sizeof(struct rfb_set_pixel_format));
break;
case VNC_SEND_ENCODINGS:
PRINTF(("Sending ENCODINGS\n"));
((struct rfb_set_encodings *)dataptr)->type = RFB_SET_ENCODINGS;
((struct rfb_set_encodings *)dataptr)->encodings = htons(1);
dataptr += sizeof(struct rfb_set_encodings);
dataptr[0] = dataptr[1] = dataptr[2] = 0;
dataptr[3] = RFB_ENC_RAW;
/* ((u8_t *)dataptr + sizeof(struct rfb_set_encodings))[4] =
((u8_t *)dataptr + sizeof(struct rfb_set_encodings))[5] =
((u8_t *)dataptr + sizeof(struct rfb_set_encodings))[6] = 0;
((u8_t *)dataptr + sizeof(struct rfb_set_encodings))[7] = RFB_ENC_RRE;*/
uip_send(uip_appdata, sizeof(struct rfb_set_encodings) + 4);
break;
case VNC_SEND_UPDATERQ:
((struct rfb_fb_update_request *)dataptr)->type = RFB_FB_UPDATE_REQ;
((struct rfb_fb_update_request *)dataptr)->incremental = 0;
((struct rfb_fb_update_request *)dataptr)->x = htons(vnc_draw_viewport_x());
((struct rfb_fb_update_request *)dataptr)->y = htons(vnc_draw_viewport_y());
((struct rfb_fb_update_request *)dataptr)->w = htons(vnc_draw_viewport_w());
((struct rfb_fb_update_request *)dataptr)->h = htons(vnc_draw_viewport_h());
uip_send(uip_appdata, sizeof(struct rfb_fb_update_request));
break;
case VNC_SEND_UPDATERQ_INC:
((struct rfb_fb_update_request *)dataptr)->type = RFB_FB_UPDATE_REQ;
((struct rfb_fb_update_request *)dataptr)->incremental = 1;
((struct rfb_fb_update_request *)dataptr)->x = htons(vnc_draw_viewport_x());
((struct rfb_fb_update_request *)dataptr)->y = htons(vnc_draw_viewport_y());
((struct rfb_fb_update_request *)dataptr)->w = htons(vnc_draw_viewport_w());
((struct rfb_fb_update_request *)dataptr)->h = htons(vnc_draw_viewport_h());
uip_send(uip_appdata, sizeof(struct rfb_fb_update_request));
break;
case VNC_SEND_EVENTS:
dataleft = uip_mss();
vs->eventptr_unacked = vs->eventptr_acked;
while(vs->eventptr_unacked != vs->eventptr_next &&
dataleft > sizeof(struct rfb_key_event)) {
switch(vs->event_queue[vs->eventptr_unacked].type) {
case VNC_POINTER_EVENT:
((struct rfb_pointer_event *)dataptr)->type = RFB_POINTER_EVENT;
((struct rfb_pointer_event *)dataptr)->buttonmask =
vs->event_queue[vs->eventptr_unacked].ev.ptr.buttonmask;
((struct rfb_pointer_event *)dataptr)->x =
htons(vs->event_queue[vs->eventptr_unacked].ev.ptr.x);
((struct rfb_pointer_event *)dataptr)->y =
htons(vs->event_queue[vs->eventptr_unacked].ev.ptr.y);
/* uip_send(uip_appdata, sizeof(struct rfb_pointer_event));*/
dataptr += sizeof(struct rfb_pointer_event);
dataleft -= sizeof(struct rfb_pointer_event);
break;
case VNC_KEY_EVENT:
PRINTF(("Send key event.\n"));
((struct rfb_key_event *)dataptr)->type = RFB_KEY_EVENT;
((struct rfb_key_event *)dataptr)->down =
vs->event_queue[vs->eventptr_unacked].ev.key.down;
((struct rfb_key_event *)dataptr)->key[0] =
((struct rfb_key_event *)dataptr)->key[1];
((struct rfb_key_event *)dataptr)->key[2] =
vs->event_queue[vs->eventptr_unacked].ev.key.key >> 8;
((struct rfb_key_event *)dataptr)->key[3] =
vs->event_queue[vs->eventptr_unacked].ev.key.key & 0xff;
/* uip_send(uip_appdata, sizeof(struct rfb_key_event));*/
dataptr += sizeof(struct rfb_key_event);
dataleft -= sizeof(struct rfb_key_event);
break;
case VNC_UPDATERQ_EVENT:
((struct rfb_fb_update_request *)dataptr)->type = RFB_FB_UPDATE_REQ;
((struct rfb_fb_update_request *)dataptr)->incremental = 0;
((struct rfb_fb_update_request *)dataptr)->x =
htons(vs->event_queue[vs->eventptr_unacked].ev.urq.x);
((struct rfb_fb_update_request *)dataptr)->y =
htons(vs->event_queue[vs->eventptr_unacked].ev.urq.y);
((struct rfb_fb_update_request *)dataptr)->w =
htons(vs->event_queue[vs->eventptr_unacked].ev.urq.w);
((struct rfb_fb_update_request *)dataptr)->h =
htons(vs->event_queue[vs->eventptr_unacked].ev.urq.h);
/* uip_send(uip_appdata, sizeof(struct rfb_fb_update_request)); */
dataptr += sizeof(struct rfb_fb_update_request);
dataleft -= sizeof(struct rfb_fb_update_request);
break;
}
vs->eventptr_unacked = (vs->eventptr_unacked + 1) % VNC_EVENTQUEUE_SIZE;
}
uip_send(uip_appdata, uip_mss() - dataleft);
break;
}
}
/*-----------------------------------------------------------------------------------*/
static void
buffer_data(u8_t *data, u16_t datalen)
{
PRINTF(("Buffering %d bytes of data\n", datalen));
if(vs->buffersize + datalen > VNC_BUFFERSIZE) {
PRINTF(("Out of buffer space!\n"));
vs->buffersize = 0;
return;
}
memcpy(&(vs->buffer[vs->buffersize]), data, datalen);
vs->buffersize += datalen;
vs->bufferleft -= datalen;
}
/*-----------------------------------------------------------------------------------*/
static void
clearbuffer(void)
{
PRINTF(("Clearing buffer\n"));
vs->buffersize = 0;
}
/*-----------------------------------------------------------------------------------*/
/* Returns: the amount of bytes actually read. */
static u16_t
recv_rectstate(u8_t *dataptr, u16_t datalen)
{
u16_t pixels;
u16_t pixelsleft;
switch(vs->rectstate) {
case VNC_RECTSTATE_RAW:
if(vs->rectstateleft > datalen) {
pixels = datalen;
vs->rectstateleft -= datalen;
} else {
pixels = vs->rectstateleft;
datalen = datalen - vs->rectstateleft;
vs->rectstateleft = 0;
vs->rectstate = VNC_RECTSTATE_NONE;
vs->sendmsg = VNC_SEND_NONE;
vs->waitmsg = VNC_WAIT_NONE;
vnc_viewer_refresh();
}
pixelsleft = pixels;
while(pixelsleft > 0) {
if(pixelsleft >= vs->rectstatex2 - vs->rectstatex) {
vnc_draw_pixelline(vs->rectstatex, vs->rectstatey,
dataptr,
vs->rectstatex2 - vs->rectstatex);
dataptr += vs->rectstatex2 - vs->rectstatex;
pixelsleft -= vs->rectstatex2 - vs->rectstatex;
vs->rectstatex = vs->rectstatex0;
++vs->rectstatey;
vnc_viewer_refresh();
} else {
vnc_draw_pixelline(vs->rectstatex, vs->rectstatey,
dataptr,
pixelsleft);
vs->rectstatex += pixelsleft;
pixelsleft = 0;
}
}
break;
case VNC_RECTSTATE_RRE:
break;
}
return pixels;
}
/*-----------------------------------------------------------------------------------*/
/* Returns: the amount of bytes that needs to be buffered before the
rect can be drawn. */
static unsigned short
recv_update_rect(register struct rfb_fb_update_rect_hdr *rhdr,
u16_t dataleft)
{
struct rfb_rre_hdr *rrehdr;
if((rhdr->encoding[0] |
rhdr->encoding[1] |
rhdr->encoding[2]) == 0) {
switch(rhdr->encoding[3]) {
case RFB_ENC_RAW:
vs->rectstateleft = (u32_t)htons(rhdr->rect.w) * (u32_t)htons(rhdr->rect.h);
vs->rectstate = VNC_RECTSTATE_RAW;
vs->rectstatex0 = vs->rectstatex = htons(rhdr->rect.x);
vs->rectstatey0 = vs->rectstatey = htons(rhdr->rect.y);
vs->rectstatew = htons(rhdr->rect.w);
vs->rectstateh = htons(rhdr->rect.h);
vs->rectstatex2 = vs->rectstatex0 + vs->rectstatew;
vs->rectstatey2 = vs->rectstatey0 + vs->rectstateh;
break;
case RFB_ENC_RRE:
rrehdr = (struct rfb_rre_hdr *)((u8_t *)rhdr +
sizeof(struct rfb_fb_update_rect_hdr));
PRINTF(("Received RRE subrects %d (%d)\n",
(htons(rrehdr->subrects[1]) << 16) +
htons(rrehdr->subrects[0]),
rrehdr->bgpixel));
vs->rectstateleft = ((u32_t)(htons(rrehdr->subrects[1]) << 16) +
(u32_t)htons(rrehdr->subrects[0]));
vs->rectstate = VNC_RECTSTATE_RRE;
break;
default:
PRINTF(("Bad encoding %02x%02x%02x%02x\n", rhdr->encoding[0],
rhdr->encoding[1],rhdr->encoding[2],rhdr->encoding[3]));
break;
}
}
return 0;
PRINTF(("recv_update_rect: returning%d\n", vs->rectstateleft));
return sizeof(struct rfb_fb_update_rect_hdr) + vs->rectstateleft;
}
/*-----------------------------------------------------------------------------------*/
/* identify_data():
*
* This function looks at the state of the connection (i.e., if it is
* handshaking or in steady-state) as well as on the contents of the
* incoming message and returns the number of bytes of data that is to
* be expected.
*/
static u16_t
identify_data(register u8_t *data, u16_t datalen)
{
switch(vs->waitmsg) {
case VNC_WAIT_VERSION:
/* Expecting version string (12 bytes). */
return 12;
break;
case VNC_WAIT_AUTH:
return 4;
break;
case VNC_WAIT_AUTH_RESPONSE:
return 1;
break;
case VNC_WAIT_SINIT:
/* XXX: We should check that the entire message header is
received, otherwise we should buffer it. */
return sizeof(struct rfb_server_init) +
((struct rfb_server_init *)uip_appdata)->namelength[3] +
((struct rfb_server_init *)uip_appdata)->namelength[2];
case VNC_WAIT_UPDATE:
case VNC_WAIT_NONE:
switch(*data) {
case RFB_FB_UPDATE:
PRINTF(("RFB FB UPDATE received\n"));
return sizeof(struct rfb_fb_update);
case RFB_BELL:
return 1;
case RFB_SERVER_CUT_TEXT:
PRINTF(("Cut text received, unhandled\n"));
return 8 + (data[6] << 8) + data[7];
case RFB_SET_COLORMAP_ENTRIES:
uip_abort();
PRINTF(("Set colormap entries received, unhandled\n"));
return 0;
default:
uip_abort();
PRINTF(("Weird message type received (%d)\n", *(u8_t *)uip_appdata));
return 0;
}
break;
case VNC_WAIT_UPDATE_RECT:
return sizeof(struct rfb_fb_update_rect_hdr);
default:
PRINTF(("identify: bad waitmsg %d\n", vs->waitmsg));
}
return 0;
}
/*-----------------------------------------------------------------------------------*/
/* handle_data():
*
* Handles the data.
*/
static unsigned short
handle_data(register u8_t *data, u16_t datalen)
{
switch(vs->waitmsg) {
case VNC_WAIT_VERSION:
/* Make sure we get the right version string from the server. */
/* XXX: not implemented. */
PRINTF(("Got version, waiting for auth, sending version\n"));
vs->waitmsg = VNC_WAIT_AUTH;
vs->sendmsg = VNC_SEND_VERSION;
break;
case VNC_WAIT_AUTH:
switch(data[3]) {
case RFB_AUTH_FAILED:
PRINTF(("Connection failed.\n"));
uip_abort();
return 0;
case RFB_AUTH_NONE:
vs->sendmsg = VNC_SEND_CINIT;
vs->waitmsg = VNC_WAIT_SINIT;
PRINTF(("No authentication needed.\n"));
break;
case RFB_AUTH_VNC:
vs->sendmsg = VNC_SEND_AUTH;
vs->waitmsg = VNC_WAIT_AUTH_RESPONSE;
PRINTF(("VNC authentication needed.\n"));
break;
}
break;
case VNC_WAIT_SINIT:
/* PRINTF(("Server init: w %d h %d, bps %d, d %d, name '%s'\n",
htons(((struct rfb_server_init *)data)->width),
htons(((struct rfb_server_init *)data)->height),
((struct rfb_server_init *)data)->format.bps,
((struct rfb_server_init *)data)->format.depth,
((u8_t *)data + sizeof(struct rfb_server_init))));*/
vs->w = htons(((struct rfb_server_init *)data)->width);
vs->h = htons(((struct rfb_server_init *)data)->height);
vs->sendmsg = VNC_SEND_PFMT;
vs->waitmsg = VNC_WAIT_NONE;
break;
case VNC_WAIT_UPDATE:
case VNC_WAIT_NONE:
switch(*data) {
case RFB_FB_UPDATE:
vs->waitmsg = VNC_WAIT_UPDATE_RECT;
vs->rectsleft = htons(((struct rfb_fb_update *)data)->rects);
PRINTF(("Handling RFB FB UPDATE for %d rects\n", vs->rectsleft));
break;
case RFB_BELL:
PRINTF(("BELL\n"));
break;
case RFB_SERVER_CUT_TEXT:
PRINTF(("Cut text received, unhandled\n"));
break;
case RFB_SET_COLORMAP_ENTRIES:
PRINTF(("Set colormap entries received, unhandled\n"));
break;
default:
PRINTF(("Weird message type received (%d)\n", *(u8_t *)data));
break;
}
break;
case VNC_WAIT_UPDATE_RECT:
PRINTF(("Handling data in WAIT_UPDATE_RECT, %d rects left (%d bytes)\n", vs->rectsleft, datalen));
--vs->rectsleft;
if(vs->rectsleft > 0) {
vs->waitmsg = VNC_WAIT_UPDATE_RECT;
} else {
vs->waitmsg = VNC_WAIT_NONE;
vs->sendmsg = VNC_SEND_NONE;
vs->rectstate = VNC_RECTSTATE_NONE;
}
return recv_update_rect((struct rfb_fb_update_rect_hdr *)data, datalen);
break;
}
return 0;
}
/*-----------------------------------------------------------------------------------*/
/* newdata():
*
* Called whenever new data arrives.
*
* First, checks if data needs to be buffered before a previously
* identified request can be fulfilled. If so, the incoming data is
* buffered and the data handler is called. If no data needs to be
* buffered, the code proceeds to identify the incoming request. If
* the incoming request can be processed immediately (i.e., all data
* is contained in this message) the data handler is invoked. If data
* has to be buffered to fulfill the request, this is noted and taken
* care of the next time this function is invoked (i.e., for the next
* incoming data chunk).
*/
static u8_t
newdata(void)
{
u16_t datalen;
u16_t readlen;
u8_t *dataptr;
datalen = uip_datalen();
dataptr = (u8_t *)uip_appdata;
PRINTF(("newdata: %d bytes\n", datalen));
/* If we are in a "rectstate", meaning that the incoming data is
part of a rectangle that is being incrementaly drawn on the
screen, we handle that first. */
if(vs->rectstate != VNC_RECTSTATE_NONE) {
readlen = recv_rectstate(dataptr, datalen);
PRINTF(("newdata: vs->rectstate %d, datalen %d, readlen %d\n",
vs->rectstate, datalen, readlen));
datalen -= readlen;
dataptr += readlen;
}
/* Next, check if we are supposed to buffer data from the incoming
segment. */
while(vs->bufferleft > 0 && datalen > 0) {
if(datalen >= vs->bufferleft) {
/* There is more data in the incoming chunk than we need to
buffer, so we buffer as much as we can and handle the
buffered data, and repeat the (identify->buffer->handle)
sequence for the data that is left in the incoming chunk. */
datalen -= vs->bufferleft;
dataptr += vs->bufferleft;
buffer_data((u8_t *)uip_appdata, vs->bufferleft);
handle_data(vs->buffer, vs->buffersize);
clearbuffer();
} else { /* datalen < vs->bufferleft */
/* We need to buffer more data than was received with this
chunk, so we buffer the avaliable data and return. */
buffer_data(dataptr, datalen);
return 0;
}
}
/* Finally, if there is data left in the segment, we handle it. */
while(datalen > 0) {
if(vs->rectstate != VNC_RECTSTATE_NONE) {
readlen = recv_rectstate(dataptr, datalen);
PRINTF(("newdata (2): vs->rectstate %d, datalen %d, readlen %d\n",
vs->rectstate, datalen, readlen));
datalen -= readlen;
dataptr += readlen;
} else {
/* We get here if there is data to be identified in the incoming
chunk. */
readlen = identify_data(dataptr, datalen);
if(readlen == 0) {
PRINTF(("Identify returned 0\n"));
return 0;
}
PRINTF(("Reading %d bytes more\n", readlen));
/* The data has been identified and the amount of data that
needs to be read to be able to process the data is in the
"readlen" variable. If the incoming chunk contains enough
data, we handle it directly, otherwise we buffer the incoming
data and set the state so that we know that there is more
data to be buffered. */
if(readlen > datalen) {
clearbuffer(); /* Should not be needed, but just in case... */
vs->bufferleft = readlen;
buffer_data(dataptr, datalen);
return 0;
}
if(readlen <= datalen) {
PRINTF(("Before handle_data %d\n", readlen));
readlen += handle_data(dataptr, readlen);
PRINTF(("After handle_data %d\n", readlen));
datalen -= readlen;
dataptr += readlen;
}
}
if(datalen > 0) {
PRINTF(("newdata: there is more data left after first iteration... %d\n", datalen));
}
}
return 0;
}
/*-----------------------------------------------------------------------------------*/
/* Called when there is nothing else to do - checks for any pending
events (mouse movements or keypresses). If no events are found, it
makes sure that we send out an incremental update request. */
static void
check_events(void)
{
if(vs->sendmsg == VNC_SEND_NONE &&
vs->eventptr_next != vs->eventptr_acked &&
vs->eventptr_acked == vs->eventptr_unacked) {
vs->sendmsg = VNC_SEND_EVENTS;
}
}
/*-----------------------------------------------------------------------------------*/
static void
request_update(void)
{
if(vs->sendmsg == VNC_SEND_NONE) {
vs->sendmsg = VNC_SEND_UPDATERQ_INC;
vs->waitmsg = VNC_WAIT_UPDATE;
PRINTF(("request_update: requesting\n"));
} else {
PRINTF(("request_update: not requesting\n"));
}
}
/*-----------------------------------------------------------------------------------*/
static void
acked(void)
{
switch(vs->sendmsg) {
case VNC_SEND_PFMT:
vs->sendmsg = VNC_SEND_ENCODINGS;
break;
case VNC_SEND_ENCODINGS:
vs->sendmsg = VNC_SEND_UPDATERQ;
vs->waitmsg = VNC_WAIT_UPDATE;
clearbuffer();
break;
case VNC_SEND_EVENTS:
vs->eventptr_acked = vs->eventptr_unacked;
vs->sendmsg = VNC_SEND_NONE;
check_events();
break;
default:
vs->sendmsg = VNC_SEND_NONE;
break;
}
}
/*-----------------------------------------------------------------------------------*/
void
vnc_viewer_appcall(void * nullptr)
{
if(vs->close == 1) {
uip_close();
return;
}
if(uip_connected()) {
vs->sendmsg = VNC_SEND_NONE;
vs->waitmsg = VNC_WAIT_VERSION;
return;
}
if(uip_acked()) {
acked();
}
if(uip_newdata()) {
newdata();
}
if(vs->sendmsg == VNC_SEND_NONE &&
vs->waitmsg == VNC_WAIT_NONE &&
vs->rectstate == VNC_RECTSTATE_NONE) {
check_events();
request_update();
}
PRINTF(("vs->sendmsg %d, vs->waitmsg %d, vs->rectstate %d\n",
vs->sendmsg, vs->waitmsg, vs->rectstate));
if(uip_rexmit() ||
uip_newdata() ||
uip_acked()) {
senddata();
} else if(uip_poll()) {
check_events();
senddata();
}
}
/*-----------------------------------------------------------------------------------*/
void
vnc_viewer_post_event(u8_t type,
u16_t data1, u16_t data2,
u16_t data3, u16_t data4)
{
register struct vnc_event *ev;
struct vnc_event *ev0;
ev0 = &(vs->event_queue[(vs->eventptr_next - 1) % VNC_EVENTQUEUE_SIZE]);
ev = &(vs->event_queue[vs->eventptr_next]);
switch(type) {
case VNC_POINTER_EVENT:
if(0 && vs->eventptr_next != vs->eventptr_acked &&
ev0->type == VNC_POINTER_EVENT &&
data1 == ev0->ev.ptr.buttonmask) {
ev0->ev.ptr.x = data2;
ev0->ev.ptr.y = data3;
return;
} else {
ev->type = type;
ev->ev.ptr.buttonmask = data1;
ev->ev.ptr.x = data2;
ev->ev.ptr.y = data3;
}
break;
case VNC_KEY_EVENT:
PRINTF(("Key event posted\n"));
ev->type = type;
ev->ev.key.down = data1;
ev->ev.key.key = data2;
break;
case VNC_UPDATERQ_EVENT:
PRINTF(("Update request event posted\n"));
ev->type = type;
ev->ev.urq.x = data1;
ev->ev.urq.y = data2;
ev->ev.urq.w = data3;
ev->ev.urq.h = data4;
break;
}
vs->eventptr_next = (vs->eventptr_next + 1) % VNC_EVENTQUEUE_SIZE;
}
/*-----------------------------------------------------------------------------------*/

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/*
* Copyright (c) 2002, Adam Dunkels.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This file is part of the Contiki VNC client.
*
* $Id: vnc-viewer.h,v 1.1 2006/06/17 23:08:35 adamdunkels Exp $
*
*/
#ifndef __VNC_VIEWER_H__
#define __VNC_VIEWER_H__
struct vnc_viewer_state;
/*typedef unsigned long u32_t;*/
void vnc_viewer_init(void);
void vnc_viewer_appcall(void *nullptr);
void vnc_viewer_connect(u16_t *server, u8_t display);
void vnc_viewer_close(void);
/* Callback: redraws the VNC viewer bitmap area. */
void vnc_viewer_refresh(void);
#define VNC_POINTER_EVENT RFB_POINTER_EVENT
#define VNC_KEY_EVENT RFB_KEY_EVENT
#define VNC_UPDATERQ_EVENT 7
#define VNC_VIEWER_POST_POINTER_EVENT(x, y, button) \
vnc_viewer_post_event(VNC_POINTER_EVENT, button, x, y, 0)
#define VNC_VIEWER_POST_KEY_EVENT(key) \
vnc_viewer_post_event(VNC_KEY_EVENT, key, 0, 0, 0)
#define VNC_VIEWER_POST_UPDATERQ_EVENT(x1,y1,x2,y2) \
vnc_viewer_post_event(VNC_UPDATERQ_EVENT, x1, y1, x2, y2)
void vnc_viewer_post_event(u8_t event,
u16_t data1, u16_t data2,
u16_t data3, u16_t data4);
/* UIP_APPCALL: the name of the application function. This function
must return void and take no arguments (i.e., C type "void
appfunc(void)"). */
#ifndef UIP_APPCALL
#define UIP_APPCALL vnc_viewer_app
#endif
struct vnc_key_event {
u8_t down;
u16_t key;
};
struct vnc_pointer_event {
u8_t buttonmask;
u16_t x, y;
};
struct vnc_updaterq_event {
u16_t x, y;
u16_t w, h;
};
struct vnc_event {
u8_t type;
union {
struct vnc_key_event key;
struct vnc_pointer_event ptr;
struct vnc_updaterq_event urq;
} ev;
};
enum vnc_sendmsg {
VNC_SEND_NONE,
VNC_SEND_VERSION,
VNC_SEND_AUTH,
VNC_SEND_CINIT,
VNC_SEND_PFMT,
VNC_SEND_ENCODINGS,
VNC_SEND_UPDATERQ,
VNC_SEND_UPDATERQ_INC,
VNC_SEND_EVENTS,
};
enum vnc_waitmsg {
VNC_WAIT_NONE,
VNC_WAIT_VERSION,
VNC_WAIT_AUTH,
VNC_WAIT_AUTH_RESPONSE,
VNC_WAIT_SINIT,
VNC_WAIT_UPDATE,
VNC_WAIT_UPDATE_RECT,
};
enum vnc_rectstate {
VNC_RECTSTATE_NONE,
VNC_RECTSTATE_RAW,
VNC_RECTSTATE_RRE,
};
struct vnc_viewer_state {
u8_t close;
u16_t w, h;
u8_t sendmsg;
u8_t waitmsg;
u16_t rectsleft;
u8_t rectstate;
u32_t rectstateleft;
u16_t rectstatex, rectstatey;
u16_t rectstateh, rectstatew;
u16_t rectstatex0, rectstatey0;
u16_t rectstatex2, rectstatey2;
u16_t eventptr_acked;
u16_t eventptr_unacked;
u16_t eventptr_next;
#define VNC_EVENTQUEUE_SIZE 32
struct vnc_event event_queue[VNC_EVENTQUEUE_SIZE];
u16_t bufferleft;
u16_t buffersize;
#define VNC_BUFFERSIZE 64
u8_t buffer[VNC_BUFFERSIZE];
};
extern struct vnc_viewer_state vnc_viewer_state;
/* Definitions of the RFB (Remote Frame Buffer) protocol
structures and constants. */
#include "net/uipopt.h"
/* Generic rectangle - x, y coordinates, width and height. */
struct rfb_rect {
u16_t x;
u16_t y;
u16_t w;
u16_t h;
};
/* Pixel format definition. */
struct rfb_pixel_format {
u8_t bps; /* Bits per pixel: 8, 16 or 32. */
u8_t depth; /* Color depth: 8-32 */
u8_t endian; /* 1 - big endian (motorola), 0 - little endian
(x86) */
u8_t truecolor; /* 1 - true color is used, 0 - true color is not used. */
/* The following fields are only used if true color is used. */
u16_t red_max, green_max, blue_max;
u8_t red_shift, green_shift, blue_shift;
u8_t pad1;
u16_t pad2;
};
/* RFB authentication constants. */
#define RFB_AUTH_FAILED 0
#define RFB_AUTH_NONE 1
#define RFB_AUTH_VNC 2
#define RFB_VNC_AUTH_OK 0
#define RFB_VNC_AUTH_FAILED 1
#define RFB_VNC_AUTH_TOOMANY 2
/* RFB message types. */
/* From server to client: */
#define RFB_FB_UPDATE 0
#define RFB_SET_COLORMAP_ENTRIES 1
#define RFB_BELL 2
#define RFB_SERVER_CUT_TEXT 3
/* From client to server. */
#define RFB_SET_PIXEL_FORMAT 0
#define RFB_FIX_COLORMAP_ENTRIES 1
#define RFB_SET_ENCODINGS 2
#define RFB_FB_UPDATE_REQ 3
#define RFB_KEY_EVENT 4
#define RFB_POINTER_EVENT 5
#define RFB_CLIENT_CUT_TEXT 6
/* Encoding types. */
#define RFB_ENC_RAW 0
#define RFB_ENC_COPYRECT 1
#define RFB_ENC_RRE 2
#define RFB_ENC_CORRE 3
#define RFB_ENC_HEXTILE 4
/* Message definitions. */
/* Server to client messages. */
struct rfb_server_init {
u16_t width;
u16_t height;
struct rfb_pixel_format format;
u8_t namelength[4];
/* Followed by name. */
};
struct rfb_fb_update {
u8_t type;
u8_t pad;
u16_t rects; /* Number of rectanges (struct rfb_fb_update_rect_hdr +
data) that follows. */
};
struct rfb_fb_update_rect_hdr {
struct rfb_rect rect;
u8_t encoding[4];
};
struct rfb_copy_rect {
u16_t srcx;
u16_t srcy;
};
struct rfb_rre_hdr {
u16_t subrects[2]; /* Number of subrectangles (struct
rfb_rre_subrect) to follow. */
u8_t bgpixel;
};
struct rfb_rre_subrect {
u8_t pixel;
struct rfb_rect rect;
};
struct rfb_corre_rect {
u8_t x;
u8_t y;
u8_t w;
u8_t h;
};
/* Client to server messages. */
struct rfb_set_pixel_format {
u8_t type;
u8_t pad;
u16_t pad2;
struct rfb_pixel_format format;
};
struct rfb_fix_colormap_entries {
u8_t type;
u8_t pad;
u16_t firstcolor;
u16_t colors;
};
struct rfb_set_encodings {
u8_t type;
u8_t pad;
u16_t encodings;
};
struct rfb_fb_update_request {
u8_t type;
u8_t incremental;
u16_t x;
u16_t y;
u16_t w;
u16_t h;
};
struct rfb_key_event {
u8_t type;
u8_t down;
u16_t pad;
u8_t key[4];
};
#define RFB_BUTTON_MASK1 1
#define RFB_BUTTON_MASK2 2
#define RFB_BUTTON_MASK3 4
struct rfb_pointer_event {
u8_t type;
u8_t buttonmask;
u16_t x;
u16_t y;
};
#endif /* __VNC_VIEWER_H__ */

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/*
* Copyright (c) 2003, Adam Dunkels.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This file is part of the Contiki VNC client
*
* $Id: vnc.c,v 1.1 2006/06/17 23:08:35 adamdunkels Exp $
*
*/
#include <string.h>
#include "contiki.h"
/*#include "petsciiconv.h"*/
#include "net/uiplib.h"
#include "net/uip.h"
#include "ctk/ctk.h"
#include "ctk/ctk-mouse.h"
#include "net/resolv.h"
/*#include "telnet.h"*/
#include "vnc.h"
#include "vnc-draw.h"
#include "vnc-viewer.h"
#include "contiki-conf.h"
#include "sys/loader.h"
#if 1
#define PRINTF(x)
#else
#include <stdio.h>
#define PRINTF(x) printf x
#endif
#ifdef VNC_CONF_VIEWPORT_WIDTH
#define VNC_VIEWPORT_WIDTH VNC_CONF_VIEWPORT_WIDTH
#else
#define VNC_VIEWPORT_WIDTH 10
#endif
#ifdef VNC_CONF_VIEWPORT_HEIGHT
#define VNC_VIEWPORT_HEIGHT VNC_CONF_VIEWPORT_HEIGHT
#else
#define VNC_VIEWPORT_HEIGHT 10
#endif
#define HEIGHT (4 + VNC_VIEWPORT_HEIGHT/8)
/* Main window */
static struct ctk_window mainwindow;
static char host[20];
static struct ctk_textentry hosttextentry =
{CTK_TEXTENTRY(0, 0, 18, 1, host, 18)};
static char portentry[4];
static struct ctk_textentry porttextentry =
{CTK_TEXTENTRY(21, 0, 3, 1, portentry, 3)};
static struct ctk_button connectbutton =
{CTK_BUTTON(27, 0, 7, "Connect")};
/*static struct ctk_button disconnectbutton =
{CTK_BUTTON(25, 3, 10, "Disconnect")};*/
static struct ctk_separator sep1 =
{CTK_SEPARATOR(0, 1, 36)};
static struct ctk_bitmap vncbitmap =
{CTK_BITMAP(2, 2,
VNC_VIEWPORT_WIDTH / 8,
VNC_VIEWPORT_HEIGHT / 8,
vnc_draw_bitmap,
VNC_VIEWPORT_WIDTH,
VNC_VIEWPORT_HEIGHT)};
static struct ctk_button leftbutton =
{CTK_BUTTON(6, HEIGHT - 1, 4, "Left")};
static struct ctk_button upbutton =
{CTK_BUTTON(13, HEIGHT - 1, 2, "Up")};
static struct ctk_button downbutton =
{CTK_BUTTON(18, HEIGHT - 1, 4, "Down")};
static struct ctk_button rightbutton =
{CTK_BUTTON(25, HEIGHT - 1, 5, "Right")};
PROCESS(vnc_process, "VNC viewer");
/*-----------------------------------------------------------------------------------*/
static void
show(char *text)
{
}
/*-----------------------------------------------------------------------------------*/
static void
connect(void)
{
u16_t addr[2], *addrptr;
u16_t port;
char *cptr;
/* Find the first space character in host and put a zero there
to end the string. */
for(cptr = host; *cptr != ' ' && *cptr != 0; ++cptr);
*cptr = 0;
addrptr = &addr[0];
if(uiplib_ipaddrconv(host, (unsigned char *)addr) == 0) {
addrptr = resolv_lookup(host);
if(addrptr == NULL) {
resolv_query(host);
show("Resolving host...");
return;
}
}
port = 0;
for(cptr = portentry; *cptr != ' ' && *cptr != 0; ++cptr) {
if(*cptr < '0' || *cptr > '9') {
show("Port number error");
return;
}
port = 10 * port + *cptr - '0';
}
vnc_viewer_connect(addrptr, port);
show("Connecting...");
}
/*-----------------------------------------------------------------------------------*/
PROCESS_THREAD(vnc_process, ev, data)
{
unsigned short x, y;
unsigned char xc, yc;
PROCESS_BEGIN();
ctk_window_new(&mainwindow, 36, HEIGHT, "VNC client");
ctk_window_move(&mainwindow, 0, 0);
CTK_WIDGET_ADD(&mainwindow, &hosttextentry);
CTK_WIDGET_FOCUS(&mainwindow, &hosttextentry);
CTK_WIDGET_ADD(&mainwindow, &porttextentry);
CTK_WIDGET_ADD(&mainwindow, &connectbutton);
CTK_WIDGET_ADD(&mainwindow, &sep1);
CTK_WIDGET_ADD(&mainwindow, &vncbitmap);
CTK_WIDGET_ADD(&mainwindow, &leftbutton);
CTK_WIDGET_ADD(&mainwindow, &upbutton);
CTK_WIDGET_ADD(&mainwindow, &downbutton);
CTK_WIDGET_ADD(&mainwindow, &rightbutton);
vnc_draw_init();
ctk_window_open(&mainwindow);
while(1) {
PROCESS_WAIT_EVENT();
if(ev == ctk_signal_button_activate) {
if(data == (process_data_t)&connectbutton) {
connect();
}
} else if(ev == ctk_signal_window_close) {
process_exit(&vnc_process);
LOADER_UNLOAD();
} else if(ev == resolv_event_found) {
if(strcmp(data, host) == 0) {
if(resolv_lookup(host) != NULL) {
connect();
} else {
show("Host not found");
}
}
} else if(ev == ctk_signal_pointer_move) {
/* Check if pointer is within the VNC viewer area */
x = ctk_mouse_x();
y = ctk_mouse_y();
xc = ctk_mouse_xtoc(x);
yc = ctk_mouse_ytoc(y);
if(xc >= 2 && yc >= 2 &&
xc < 2 + VNC_VIEWPORT_WIDTH / 8 &&
yc < 2 + VNC_VIEWPORT_HEIGHT / 8) {
VNC_VIEWER_POST_POINTER_EVENT(x, y, 0);
}
} else if(ev == tcpip_event) {
vnc_viewer_appcall(data);
}
}
PROCESS_END();
}
/*-----------------------------------------------------------------------------------*/
void
vnc_viewer_refresh(void)
{
CTK_WIDGET_REDRAW(&vncbitmap);
}
/*-----------------------------------------------------------------------------------*/

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/*
* Copyright (c) 2003, Adam Dunkels.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This file is part of the Contiki VNC client.
*
* $Id: vnc.h,v 1.1 2006/06/17 23:08:35 adamdunkels Exp $
*
*/
#ifndef __VNC_H__
#define __VNC_H__
void vnc_init(char *arg);
#endif /* __VNC_H__ */