osd-contiki/apps/shell/shell-tcpsend.c
2015-05-18 08:53:17 +02:00

192 lines
5.7 KiB
C

/*
* Copyright (c) 2004, 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. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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 operating system.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#include <string.h>
#include <stddef.h>
#include "contiki.h"
#include "sys/cc.h"
#include "shell.h"
#include "telnet.h"
/*---------------------------------------------------------------------------*/
PROCESS(shell_tcpsend_process, "tcpsend");
SHELL_COMMAND(tcpsend_command,
"tcpsend",
"tcpsend <host> <port>: open a TCP connection",
&shell_tcpsend_process);
/*---------------------------------------------------------------------------*/
#define MAX_SERVERLEN 16
static uip_ipaddr_t serveraddr;
static char server[MAX_SERVERLEN + 1];
static struct telnet_state s;
static unsigned char running;
#define MAX_LINELEN 80
static char outputline[MAX_LINELEN];
static uint8_t sending;
/*---------------------------------------------------------------------------*/
void
telnet_text_output(struct telnet_state *s, char *text1, char *text2)
{
char buf1[MAX_SERVERLEN];
int len;
strncpy(buf1, text1, sizeof(buf1));
len = strlen(buf1);
if(len < sizeof(buf1) - 1) {
buf1[len] = ' ';
buf1[len + 1] = 0;
}
shell_output_str(&tcpsend_command, buf1, text2);
}
/*---------------------------------------------------------------------------*/
void
telnet_newdata(struct telnet_state *s, char *data, uint16_t len)
{
shell_output(&tcpsend_command, data, len, "", 0);
}
/*---------------------------------------------------------------------------*/
static void
send_line(struct telnet_state *s, char *data, int len)
{
if(!sending) {
strncpy(outputline, data, MIN(sizeof(outputline), len));
telnet_send(s, data, len);
sending = 1;
} else {
shell_output_str(&tcpsend_command, "Cannot send data, still sending previous data", "");
}
}
/*---------------------------------------------------------------------------*/
void
telnet_sent(struct telnet_state *s)
{
sending = 0;
}
/*---------------------------------------------------------------------------*/
void
telnet_closed(struct telnet_state *s)
{
telnet_text_output(s, server, "connection closed");
running = 0;
}
/*---------------------------------------------------------------------------*/
void
telnet_aborted(struct telnet_state *s)
{
telnet_text_output(s, server, "connection aborted");
running = 0;
}
/*---------------------------------------------------------------------------*/
void
telnet_timedout(struct telnet_state *s)
{
telnet_text_output(s, server, "connection timed out");
running = 0;
}
/*---------------------------------------------------------------------------*/
void
telnet_connected(struct telnet_state *s)
{
telnet_text_output(s, server, "connected");
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(shell_tcpsend_process, ev, data)
{
char *next;
const char *dummy;
struct shell_input *input;
uint16_t port;
PROCESS_BEGIN();
next = strchr(data, ' ');
if(next == NULL) {
shell_output_str(&tcpsend_command,
"tcpsend <server> <port>: server as address", "");
PROCESS_EXIT();
}
*next = 0;
++next;
strncpy(server, data, sizeof(server));
port = shell_strtolong(next, &dummy);
running = 1;
uiplib_ipaddrconv(server, &serveraddr);
telnet_connect(&s, &serveraddr, port);
while(running) {
PROCESS_WAIT_EVENT();
if(ev == shell_event_input) {
input = data;
if(input->len1 + input->len2 == 0) {
PROCESS_EXIT();
}
if(input->len1 > 0) {
send_line(&s, input->data1, input->len1);
}
} else if(ev == tcpip_event) {
telnet_app(data);
#if 0
} else if(ev == resolv_event_found) {
/* Either found a hostname, or not. */
if((char *)data != NULL &&
resolv_lookup((char *)data, &ipaddr) == RESOLV_STATUS_CACHED) {
uip_ipaddr_copy(serveraddr, ipaddr);
telnet_connect(&s, server, serveraddr, nick);
} else {
shell_output_str(&tcpsend_command, "Host not found.", "");
}
#endif /* 0 */
}
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
void
shell_tcpsend_init(void)
{
shell_register_command(&tcpsend_command);
}
/*---------------------------------------------------------------------------*/