contiki/apps/shell/shell-rsh.c

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/*
* Copyright (c) 2008, Swedish Institute of Computer Science.
* 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.
*
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* $Id: shell-rsh.c,v 1.2 2008/11/09 10:53:25 adamdunkels Exp $
*/
/**
* \file
* A brief description of what this file is.
* \author
* Adam Dunkels <adam@sics.se>
*/
#include "contiki.h"
#include "shell.h"
#include "net/rime.h"
#include "net/rime/meshconn.h"
#include <stdio.h>
#include <string.h>
static struct meshconn_conn meshconn;
static struct process *front_process;
static int initiator = 0;
/*---------------------------------------------------------------------------*/
PROCESS(shell_rsh_process, "rsh");
SHELL_COMMAND(rsh_command,
"rsh",
"rsh <node>: remote login to another node",
&shell_rsh_process);
PROCESS(shell_rsh_server_process, "rsh server");
/*SHELL_COMMAND(rsh_server_command,
"rsh server",
"rsh server: never invoked directly",
&shell_rsh_server_process);*/
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(shell_rsh_process, ev, data)
{
static rimeaddr_t receiver;
const char *nextptr;
char buf[40];
PROCESS_BEGIN();
receiver.u8[0] = shell_strtolong(data, &nextptr);
if(nextptr == data || *nextptr != '.') {
shell_output_str(&rsh_command,
"rsh <node>: node address must be specified", "");
PROCESS_EXIT();
}
++nextptr;
receiver.u8[1] = shell_strtolong(nextptr, &nextptr);
sprintf(buf, "%d.%d", receiver.u8[0], receiver.u8[1]);
shell_output_str(&rsh_command, "Connecting to ", buf);
initiator = 1;
meshconn_connect(&meshconn, &receiver);
while(1) {
struct shell_input *input;
PROCESS_WAIT_EVENT();
if(ev == shell_event_input) {
input = data;
if(input->len1 + input->len2 == 0) {
meshconn_close_connection(&meshconn);
PROCESS_EXIT();
}
if(input->len1 + input->len2 >= RIMEBUF_SIZE) {
shell_output_str(&rsh_command, "rsh: input too long", "");
} else {
rimebuf_clear();
memcpy(rimebuf_dataptr(), input->data1, input->len1);
memcpy((char *)rimebuf_dataptr() + input->len1,
input->data2, input->len2);
rimebuf_set_datalen(input->len1 + input->len2);
meshconn_send(&meshconn);
}
}
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(shell_rsh_server_process, ev, data)
{
PROCESS_BEGIN();
while(1) {
PROCESS_WAIT_EVENT_UNTIL(ev == shell_event_input ||
(ev == PROCESS_EVENT_EXITED &&
data == front_process));
if(ev == PROCESS_EVENT_EXITED) {
front_process = NULL;
} else if(ev == shell_event_input) {
struct shell_input *input;
input = data;
rimebuf_clear();
memcpy(rimebuf_dataptr(), input->data1, input->len1);
memcpy((char *)rimebuf_dataptr() + input->len1,
input->data2, input->len2);
rimebuf_set_datalen(input->len1 + input->len2);
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/* printf("Sending meshconn with %d + %d bytes\n",
input->len1, input->len2);*/
meshconn_send(&meshconn);
}
/* PROCESS_WAIT_EVENT_UNTIL(ev == shell_event_input);*/
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
static void
connected_meshconn(struct meshconn_conn *c)
{
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/* printf("connected\n");*/
}
static void
recv_meshconn(struct meshconn_conn *c)
{
/* int ret;
struct process *started_process;*/
/* printf("got '%.*s'\n", rimebuf_datalen(), (char *)rimebuf_dataptr());*/
/* Echo reply */
if(!initiator) {
rimebuf_copyfrom("abcdefghijklmnopq", 18);
meshconn_send(c);
}
return;
#if 0
if(front_process != NULL &&
process_is_running(front_process)) {
struct shell_input input;
input.data1 = rimebuf_dataptr();
input.len1 = rimebuf_datalen();
input.data2 = "";
input.len2 = 0;
process_post_synch(front_process, shell_event_input, &input);
} else {
ret = shell_start_command(rimebuf_dataptr(), rimebuf_datalen(),
&rsh_server_command, &started_process);
if(started_process != NULL &&
ret == SHELL_FOREGROUND &&
process_is_running(started_process)) {
front_process = started_process;
}
}
/* shell_input(rimebuf_dataptr(), rimebuf_datalen());*/
/* shell_output(&rsh_command, rimebuf_dataptr(), rimebuf_datalen(), "", 0);*/
#endif
}
static void
closed_meshconn(struct meshconn_conn *c)
{
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/* printf("closed\n");*/
}
static void
timedout_meshconn(struct meshconn_conn *c)
{
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/* printf("timedout\n");*/
}
static void
reset_meshconn(struct meshconn_conn *c)
{
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/* printf("reset\n");*/
}
/*---------------------------------------------------------------------------*/
static struct meshconn_callbacks meshconn_callbacks = { connected_meshconn,
recv_meshconn,
closed_meshconn,
timedout_meshconn,
reset_meshconn };
/*---------------------------------------------------------------------------*/
void
shell_rsh_init(void)
{
meshconn_open(&meshconn, 23, &meshconn_callbacks);
shell_register_command(&rsh_command);
process_start(&shell_rsh_server_process, NULL);
}
/*---------------------------------------------------------------------------*/