311 lines
8.6 KiB
C
311 lines
8.6 KiB
C
/*
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* Copyright (c) 2002, Adam Dunkels.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This file is part of the Contiki desktop environment
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*
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* $Id: simpletelnet.c,v 1.1 2006/06/17 22:41:12 adamdunkels Exp $
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*
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*/
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#include <string.h>
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#include "contiki-net.h"
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#include "lib/petsciiconv.h"
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#include "ctk/ctk.h"
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#include "telnet.h"
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#include "simpletelnet.h"
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/* Telnet window */
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static struct ctk_window telnetwindow;
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static struct ctk_label telnethostlabel =
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{CTK_LABEL(1, 0, 4, 1, "Host")};
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static char telnethost[25];
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static struct ctk_textentry telnethosttextentry =
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{CTK_TEXTENTRY(0, 1, 24, 1, telnethost, 24)};
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static struct ctk_label telnetportlabel =
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{CTK_LABEL(31, 0, 4, 1, "Port")};
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static char telnetport[6];
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static struct ctk_textentry telnetporttextentry =
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{CTK_TEXTENTRY(30, 1, 5, 1, telnetport, 5)};
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static struct ctk_button telnetconnectbutton =
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{CTK_BUTTON(2, 3, 7, "Connect")};
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static struct ctk_button telnetdisconnectbutton =
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{CTK_BUTTON(25, 3, 10, "Disconnect")};
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static char telnetline[31];
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static struct ctk_textentry telnetlinetextentry =
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{CTK_TEXTENTRY(0, 5, 30, 1, telnetline, 30)};
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static struct ctk_button telnetsendbutton =
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{CTK_BUTTON(32, 5, 4, "Send")};
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static struct ctk_label telnetstatus =
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{CTK_LABEL(0, 19, 38, 1, "")};
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static struct ctk_separator telnetsep1 =
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{CTK_SEPARATOR(0, 7, 38)};
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static struct ctk_separator telnetsep2 =
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{CTK_SEPARATOR(0, 18, 38)};
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static char telnettext[38*10];
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static struct ctk_label telnettextarea =
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{CTK_LABEL(0, 8, 38, 10, telnettext)};
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static struct telnet_state ts_appstate;
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#define ISO_NL 0x0a
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#define ISO_CR 0x0d
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static char sendline[31+2];
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PROCESS(simpletelnet_process, "Telnet client");
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/*-----------------------------------------------------------------------------------*/
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static void
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scrollup(void)
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{
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unsigned char i;
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for(i = 1; i < 10; ++i) {
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memcpy(&telnettext[(i - 1) * 38], &telnettext[i * 38], 38);
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}
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memset(&telnettext[9 * 38], 0, 38);
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}
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/*-----------------------------------------------------------------------------------*/
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static void
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add_text(char *text)
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{
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unsigned char i;
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unsigned int len;
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len = strlen(text);
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i = 0;
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while(len > 0) {
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if(*text == '\n') {
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scrollup();
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i = 0;
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} else if(*text == '\r') {
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i = 0;
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} else if(*text >= ' ') {
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telnettext[9 * 38 + i] = *text;
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++i;
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if(i == 38) {
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scrollup();
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i = 0;
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}
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}
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++text;
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--len;
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}
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/* if(strlen(text) > 37) {
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memcpy(&telnettext[9 * 38], text, 37);
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} else {
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memcpy(&telnettext[9 * 38], text, strlen(text));
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}
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*/
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}
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/*-----------------------------------------------------------------------------------*/
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static void
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show(char *text)
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{
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add_text(text);
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add_text("\n");
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ctk_label_set_text(&telnetstatus, text);
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ctk_window_redraw(&telnetwindow);
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}
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/*-----------------------------------------------------------------------------------*/
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static void
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connect(void)
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{
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u16_t addr[2], *addrptr;
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u16_t port;
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char *cptr;
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struct uip_conn *conn;
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/* Find the first space character in host and put a zero there
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to end the string. */
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for(cptr = telnethost; *cptr != ' ' && *cptr != 0; ++cptr);
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*cptr = 0;
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addrptr = &addr[0];
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if(uiplib_ipaddrconv(telnethost, (unsigned char *)addr) == 0) {
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addrptr = resolv_lookup(telnethost);
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if(addrptr == NULL) {
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resolv_query(telnethost);
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show("Resolving host...");
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return;
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}
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}
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port = 0;
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for(cptr = telnetport; *cptr != ' ' && *cptr != 0; ++cptr) {
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if(*cptr < '0' || *cptr > '9') {
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show("Port number error");
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return;
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}
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port = 10 * port + *cptr - '0';
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}
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conn = tcp_connect(addrptr, htons(port), &ts_appstate);
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if(conn == NULL) {
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show("Out of memory error");
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return;
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}
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show("Connecting...");
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}
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/*-----------------------------------------------------------------------------------*/
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PROCESS_THREAD(simpletelnet_process, ev, data)
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{
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struct ctk_widget *w;
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int sendlen;
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PROCESS_BEGIN();
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ctk_window_new(&telnetwindow, 38, 20, "Simple telnet");
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strcpy(telnetport, "23");
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CTK_WIDGET_ADD(&telnetwindow, &telnethostlabel);
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CTK_WIDGET_ADD(&telnetwindow, &telnetportlabel);
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CTK_WIDGET_ADD(&telnetwindow, &telnethosttextentry);
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CTK_WIDGET_ADD(&telnetwindow, &telnetporttextentry);
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CTK_WIDGET_ADD(&telnetwindow, &telnetconnectbutton);
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CTK_WIDGET_ADD(&telnetwindow, &telnetdisconnectbutton);
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CTK_WIDGET_ADD(&telnetwindow, &telnetlinetextentry);
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CTK_WIDGET_ADD(&telnetwindow, &telnetsendbutton);
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CTK_WIDGET_ADD(&telnetwindow, &telnetsep1);
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CTK_WIDGET_ADD(&telnetwindow, &telnettextarea);
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CTK_WIDGET_ADD(&telnetwindow, &telnetsep2);
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CTK_WIDGET_ADD(&telnetwindow, &telnetstatus);
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CTK_WIDGET_FOCUS(&telnetwindow, &telnethosttextentry);
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ctk_window_open(&telnetwindow);
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while(1) {
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PROCESS_WAIT_EVENT();
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if(ev == ctk_signal_button_activate) {
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w = (struct ctk_widget *)data;
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if(w == (struct ctk_widget *)&telnetsendbutton) {
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strcpy(sendline, telnetline);
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sendlen = strlen(sendline);
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petsciiconv_toascii(sendline, sendlen);
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sendline[sendlen++] = ISO_CR;
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sendline[sendlen++] = ISO_NL;
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if(telnet_send(&ts_appstate, sendline, sendlen)) {
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/* Could not send. */
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ctk_label_set_text(&telnetstatus, "Could not send");
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ctk_window_redraw(&telnetwindow);
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/* } else {*/
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/* Could send */
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}
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} else if(w == (struct ctk_widget *)&telnetdisconnectbutton) {
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telnet_close(&ts_appstate);
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show("Closing...");
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} else if(w == (struct ctk_widget *)&telnetconnectbutton) {
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connect();
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ctk_window_redraw(&telnetwindow);
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}
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} else if(ev == resolv_event_found) {
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if(strcmp(data, telnethost) == 0) {
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if(resolv_lookup(telnethost) != NULL) {
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connect();
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} else {
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show("Host not found");
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}
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}
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} else if(ev == ctk_signal_window_close ||
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ev == PROCESS_EVENT_EXIT) {
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process_exit(&simpletelnet_process);
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ctk_window_close(&telnetwindow);
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LOADER_UNLOAD();
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} else if(ev == tcpip_event) {
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telnet_app(data);
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}
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}
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PROCESS_END();
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}
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/*-----------------------------------------------------------------------------------*/
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void
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telnet_connected(struct telnet_state *s)
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{
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show("Connected");
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}
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/*-----------------------------------------------------------------------------------*/
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void
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telnet_closed(struct telnet_state *s)
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{
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show("Connection closed");
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}
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/*-----------------------------------------------------------------------------------*/
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void
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telnet_sent(struct telnet_state *s)
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{
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petsciiconv_topetscii(sendline, sizeof(sendline));
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scrollup();
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add_text(sendline);
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CTK_TEXTENTRY_CLEAR(&telnetlinetextentry);
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ctk_window_redraw(&telnetwindow);
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}
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/*-----------------------------------------------------------------------------------*/
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void
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telnet_aborted(struct telnet_state *s)
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{
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show("Connection reset by peer");
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}
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/*-----------------------------------------------------------------------------------*/
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void
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telnet_timedout(struct telnet_state *s)
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{
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show("Connection timed out");
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}
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/*-----------------------------------------------------------------------------------*/
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void
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telnet_newdata(struct telnet_state *s, char *data, u16_t len)
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{
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petsciiconv_topetscii(data, len);
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data[len] = 0;
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add_text(data);
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ctk_window_redraw(&telnetwindow);
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}
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/*-----------------------------------------------------------------------------------*/
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