osd-contiki/apps/shell/shell-udpsend.c

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/*
* 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>
*
* $Id: shell-udpsend.c,v 1.7 2010/10/19 18:29:03 adamdunkels Exp $
*/
#include <string.h>
#include <stddef.h>
#include "contiki.h"
#include "shell.h"
#include "contiki-net.h"
/*---------------------------------------------------------------------------*/
PROCESS(shell_udpsend_process, "udpsend");
SHELL_COMMAND(udpsend_command,
"udpsend",
"udpsend <host> <remote port> [local port]: send UDP data",
&shell_udpsend_process);
/*---------------------------------------------------------------------------*/
#define MAX_SERVERLEN 16
static struct uip_udp_conn *udpconn;
static uip_ipaddr_t serveraddr;
static char server[MAX_SERVERLEN + 1];
static unsigned char running;
/*---------------------------------------------------------------------------*/
static void
send_line(char *line, int len)
{
uip_udp_packet_send(udpconn, line, len);
}
/*---------------------------------------------------------------------------*/
static void
newdata(char *data, uint16_t len)
{
shell_output(&udpsend_command, data, len, "", 0);
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(shell_udpsend_process, ev, data)
{
const char *next, *nextptr;
struct shell_input *input;
uint16_t port, local_port;
PROCESS_BEGIN();
next = strchr(data, ' ');
if(next == NULL) {
shell_output_str(&udpsend_command,
"udpsend <server> <port> [localport]: server as address", "");
PROCESS_EXIT();
}
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if(next - (char *)data > sizeof(server)) {
shell_output_str(&udpsend_command, "Too long input", "");
PROCESS_EXIT();
}
strncpy(server, data, sizeof(server));
/* NULL-terminate the server string. */
server[next - (char *)data] = 0;
++next;
port = shell_strtolong(next, &nextptr);
uiplib_ipaddrconv(server, &serveraddr);
udpconn = udp_new(&serveraddr, uip_htons(port), NULL);
if(next != nextptr) {
local_port = shell_strtolong(nextptr, &nextptr);
udp_bind(udpconn, uip_htons(local_port));
}
running = 1;
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(input->data1, input->len1);
}
} else if(ev == tcpip_event) {
if(uip_newdata()) {
newdata(uip_appdata, uip_datalen());
}
#if 0
} else if(ev == resolv_event_found) {
/* Either found a hostname, or not. */
if((char *)data != NULL &&
resolv_lookup((char *)data) != NULL) {
uip_ipaddr_copy(serveraddr, ipaddr);
telnet_connect(&s, server, serveraddr, nick);
} else {
shell_output_str(&udpsend_command, "Host not found.", "");
}
#endif /* 0 */
}
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
void
shell_udpsend_init(void)
{
shell_register_command(&udpsend_command);
}
/*---------------------------------------------------------------------------*/