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tests: intial import of lwIP test application

pr/gpio
Martine Lenders 7 years ago
parent
commit
9b8417fbb9
  1. 49
      tests/lwip/Makefile
  2. 57
      tests/lwip/common.c
  3. 81
      tests/lwip/common.h
  4. 160
      tests/lwip/ip.c
  5. 75
      tests/lwip/main.c
  6. 266
      tests/lwip/tests/01-run.py
  7. 168
      tests/lwip/udp.c

49
tests/lwip/Makefile

@ -0,0 +1,49 @@
APPLICATION = lwip
BOARD ?= iotlab-m3
RIOTBASE ?= $(CURDIR)/../..
BOARD_BLACKLIST := arduino-mega2560 msb-430h z1
BOARD_INSUFFICIENT_MEMORY := airfy-beacon arduino-mega2560 msb-430h nrf6310 \
nucleo-f334 pca10005 stm32f0discovery weio \
yunjia-nrf51822 z1
USEMODULE += lwip lwip_ipv6_autoconfig lwip_conn_ip lwip_netdev2
USEMODULE += lwip_udp lwip_conn_udp
USEMODULE += ipv6_addr
USEMODULE += shell
USEMODULE += shell_commands
USEMODULE += ps
USEMODULE += od
# use the at86rf231 as fallback device
DRIVER := at86rf231
# define the driver to be used for selected boards
ifneq (,$(filter samr21-xpro,$(BOARD)))
DRIVER := at86rf233
endif
ifneq (,$(filter iotlab-m3 fox,$(BOARD)))
DRIVER := at86rf231
endif
ifneq (,$(filter mulle,$(BOARD)))
DRIVER := at86rf212b
endif
ifneq (,$(filter native,$(BOARD)))
DRIVER := netdev2_tap
USEMODULE += lwip_ethernet
endif
ifneq (,$(filter at86rf2%,$(DRIVER)))
FEATURES_REQUIRED = periph_spi periph_gpio
endif
USEMODULE += $(DRIVER)
QUIET ?= 1
include $(RIOTBASE)/Makefile.include
test:
./tests/01-run.py

57
tests/lwip/common.c

@ -0,0 +1,57 @@
/*
* Copyright (C) Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @{
*
* @file
* @author Martine Lenders <mlenders@inf.fu-berlin.de>
*/
#include <stdbool.h>
#include "common.h"
size_t hex2ints(uint8_t *out, const char *in)
{
bool upper = true;
size_t out_size = 0;
while (*in != '\0') {
char c;
if ((*in >= '0') && (*in <= '9')) {
c = '0';
}
else if ((*in >= 'a') && (*in <= 'f')) {
c = 'a' - 10;
}
else if ((*in >= 'A') && (*in <= 'F')) {
c = 'A' - 10;
}
else {
in++;
continue;
}
if (upper) {
*out = (char)(*in - c) << 4;
}
else {
*out |= (char)(*in - c);
out++;
out_size++;
}
upper = !upper;
in++;
}
if (!upper) {
out_size++;
}
return out_size;
}
/** @} */

81
tests/lwip/common.h

@ -0,0 +1,81 @@
/*
* Copyright (C) 2016 Martine Lenders <mlenders@inf.fu-berlin.de>
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup tests
* @{
*
* @file
* @brief Definitions for tests/lwip/
*
* @author Martine Lenders <mlenders@inf.fu-berlin.de>
*/
#ifndef MAIN_H_
#define MAIN_H_
#include <stdint.h>
#include <sys/types.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Application configuration
* @{
*/
#define CONN_INBUF_SIZE (256)
#define SERVER_MSG_QUEUE_SIZE (8)
#define SERVER_BUFFER_SIZE (64)
/**
* @}
*/
/**
* @brief Converts hex string to byte array.
*
* @param[out] out Resulting byte array
* @param[in] in `\0` terminated string. Non-hex characters (all except 0-9, a-f, A-F)
* will be ignored.
*
* @return Length of @p out.
*/
size_t hex2ints(uint8_t *out, const char *in);
#ifdef MODULE_CONN_IP
/**
* @brief Raw IP shell command
*
* @param[in] argc number of arguments
* @param[in] argv array of arguments
*
* @return 0 on success
* @return other on error
*/
int ip_cmd(int argc, char **argv);
#endif
#ifdef MODULE_CONN_UDP
/**
* @brief UDP IP shell command
*
* @param[in] argc number of arguments
* @param[in] argv array of arguments
*
* @return 0 on success
* @return other on error
*/
int udp_cmd(int argc, char **argv);
#endif
#ifdef __cplusplus
}
#endif
#endif /* MAIN_H_ */
/** @} */

160
tests/lwip/ip.c

@ -0,0 +1,160 @@
/*
* Copyright (C) 2015 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup examples
* @{
*
* @file
* @brief Demonstrating the sending and receiving of UDP data over POSIX sockets.
*
* @author Martine Lenders <mlenders@inf.fu-berlin.de>
*
* @}
*/
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include "common.h"
#include "od.h"
#include "net/af.h"
#include "net/conn/ip.h"
#include "net/ipv6.h"
#include "thread.h"
#include "xtimer.h"
#ifdef MODULE_CONN_IP
static char conn_inbuf[CONN_INBUF_SIZE];
static bool server_running;
static conn_ip_t server_conn;
static char server_stack[THREAD_STACKSIZE_DEFAULT];
static msg_t server_msg_queue[SERVER_MSG_QUEUE_SIZE];
static void *_server_thread(void *args)
{
ipv6_addr_t server_addr = IPV6_ADDR_UNSPECIFIED;
uint8_t protocol;
msg_init_queue(server_msg_queue, SERVER_MSG_QUEUE_SIZE);
/* parse protocol */
protocol = (uint8_t)atoi((char *)args);
if (conn_ip_create(&server_conn, &server_addr, sizeof(server_addr), AF_INET6, protocol) < 0) {
return NULL;
}
server_running = true;
printf("Success: started IP server on protocol %u\n", protocol);
while (1) {
int res;
ipv6_addr_t src;
size_t src_len = sizeof(ipv6_addr_t);
if ((res = conn_ip_recvfrom(&server_conn, conn_inbuf, sizeof(conn_inbuf), &src,
&src_len)) < 0) {
puts("Error on receive");
}
else if (res == 0) {
puts("No data received");
}
else {
od_hex_dump(conn_inbuf, res, 0);
}
}
return NULL;
}
static int ip_send(char *addr_str, char *port_str, char *data, unsigned int num,
unsigned int delay)
{
ipv6_addr_t src = IPV6_ADDR_UNSPECIFIED, dst;
uint8_t protocol;
uint8_t byte_data[strlen(data) / 2];
size_t data_len;
/* parse destination address */
if (ipv6_addr_from_str(&dst, addr_str) == NULL) {
puts("Error: unable to parse destination address");
return 1;
}
/* parse protocol */
protocol = (uint8_t)atoi(port_str);
data_len = hex2ints(byte_data, data);
for (unsigned int i = 0; i < num; i++) {
if (conn_ip_sendto(byte_data, data_len, &src, sizeof(src), (struct sockaddr *)&dst,
sizeof(dst), AF_INET6, protocol) < 0) {
puts("could not send");
}
else {
printf("Success: send %u byte to %s (next header: %u)\n",
(unsigned)data_len, addr_str, protocol);
}
xtimer_usleep(delay);
}
return 0;
}
static int ip_start_server(char *port_str)
{
if (thread_create(server_stack, sizeof(server_stack), THREAD_PRIORITY_MAIN - 1,
THREAD_CREATE_STACKTEST, _server_thread, port_str,
"IP server") <= KERNEL_PID_UNDEF) {
return 1;
}
return 0;
}
int ip_cmd(int argc, char **argv)
{
if (argc < 2) {
printf("usage: %s [send|server]\n", argv[0]);
return 1;
}
if (strcmp(argv[1], "send") == 0) {
uint32_t num = 1;
uint32_t delay = 1000000;
if (argc < 5) {
printf("usage: %s send <addr> <protocol> <hex data> [<num> [<delay in us>]]\n",
argv[0]);
return 1;
}
if (argc > 5) {
num = (uint32_t)atoi(argv[5]);
}
if (argc > 6) {
delay = (uint32_t)atoi(argv[6]);
}
return ip_send(argv[2], argv[3], argv[4], num, delay);
}
else if (strcmp(argv[1], "server") == 0) {
if (argc < 3) {
printf("usage: %s server [start|stop]\n", argv[0]);
return 1;
}
if (strcmp(argv[2], "start") == 0) {
if (argc < 4) {
printf("usage %s server start <protocol>\n", argv[0]);
return 1;
}
return ip_start_server(argv[3]);
}
else {
puts("error: invalid command");
return 1;
}
}
else {
puts("error: invalid command");
return 1;
}
}
#else
typedef int dont_be_pedantic;
#endif
/** @} */

75
tests/lwip/main.c

@ -0,0 +1,75 @@
/*
* Copyright (C) 2015 Martine Lenders <mlenders@inf.fu-berlin.de>
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup examples
* @{
*
* @file
* @brief Test for raw IPv6 connections
*
* @author Martine Lenders <mlenders@inf.fu-berlin.de>
*
* This test application tests the gnrc_conn_ip module. If you select protocol 58 you can also
* test if gnrc is able to deal with multiple subscribers to ICMPv6 (gnrc_icmpv6 and this
* application).
*
* @}
*/
#include <errno.h>
#include <stdio.h>
#include "common.h"
#include "lwip.h"
#include "lwip/netif.h"
#include "net/ipv6/addr.h"
#include "shell.h"
static int ifconfig(int argc, char **argv)
{
(void)argc;
(void)argv;
for (struct netif *iface = netif_list; iface != NULL; iface = iface->next) {
printf("%s_%02u: ", iface->name, iface->num);
#ifdef MODULE_LWIP_IPV6
char addrstr[IPV6_ADDR_MAX_STR_LEN];
for (int i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) {
if (!ipv6_addr_is_unspecified((ipv6_addr_t *)&iface->ip6_addr[i])) {
printf(" inet6 %s\n", ipv6_addr_to_str(addrstr, (ipv6_addr_t *)&iface->ip6_addr[i],
sizeof(addrstr)));
}
}
#endif
puts("");
}
return 0;
}
static const shell_command_t shell_commands[] = {
#ifdef MODULE_CONN_IP
{ "ip", "Send IP packets and listen for packets of certain type", ip_cmd },
#endif
#ifdef MODULE_CONN_UDP
{ "udp", "Send UDP messages and listen for messages on UDP port", udp_cmd },
#endif
{ "ifconfig", "Shows assigned IPv6 addresses", ifconfig },
{ NULL, NULL, NULL }
};
static char line_buf[SHELL_DEFAULT_BUFSIZE];
char conn_inbuf[CONN_INBUF_SIZE];
int main(void)
{
puts("RIOT lwip test application");
shell_run(shell_commands, line_buf, SHELL_DEFAULT_BUFSIZE);
/* should be never reached */
return 0;
}

266
tests/lwip/tests/01-run.py

@ -0,0 +1,266 @@
#! /usr/bin/env python
# -*- coding: utf-8 -*-
# vim:fenc=utf-8
#
# Copyright © 2016 Martine Lenders <mail@martine-lenders.eu>
#
# Distributed under terms of the MIT license.
from __future__ import print_function
import argparse
import os, sys
import random
import pexpect
import subprocess
import time
import types
DEFAULT_TIMEOUT = 5
class Strategy(object):
def __init__(self, func=None):
if func != None:
if sys.version_info < (3,):
self.__class__.execute = types.MethodType(func, self, self.__class__)
else:
self.__class__.execute = types.MethodType(func, self)
def execute(self, *args, **kwargs):
raise NotImplementedError()
class ApplicationStrategy(Strategy):
def __init__(self, app_dir=os.getcwd(), func=None):
super(ApplicationStrategy, self).__init__(func)
self.app_dir = app_dir
class BoardStrategy(Strategy):
def __init__(self, board, func=None):
super(BoardStrategy, self).__init__(func)
self.board = board
def __run_make(self, application, make_targets, env=None):
env = os.environ.copy()
if env != None:
env.update(env)
env.update(self.board.to_env())
cmd = ("make", "-C", application) + make_targets
print(' '.join(cmd))
print(subprocess.check_output(cmd, env=env))
def execute(self, application):
super(BoardStrategy, self).execute(application)
class CleanStrategy(BoardStrategy):
def execute(self, application, env=None):
super(CleanStrategy, self).__run_make(application, ("-B", "clean"), env)
class BuildStrategy(BoardStrategy):
def execute(self, application, env=None):
super(BuildStrategy, self).__run_make(application, ("all",), env)
class FlashStrategy(BoardStrategy):
def execute(self, application, env=None):
super(FlashStrategy, self).__run_make(application, ("all",), env)
class ResetStrategy(BoardStrategy):
def execute(self, application, env=None):
super(ResetStrategy, self).__run_make(application, ("reset",), env)
class Board(object):
def __init__(self, name, port=None, serial=None, clean=None,
build=None, flash=None,
reset=None, term=None):
def _reset_native_execute(obj, application, env=None, *args, **kwargs):
pass
if (name == "native") and (reset == None):
reset = _reset_native_execute
self.name = name
self.port = port
self.serial = serial
self.clean_strategy = CleanStrategy(self, clean)
self.build_strategy = BuildStrategy(self, build)
self.flash_strategy = FlashStrategy(self, flash)
self.reset_strategy = ResetStrategy(self, reset)
def __len__(self):
return 1
def __iter__(self):
return self
def next(self):
raise StopIteration()
def __repr__(self):
return ("<Board %s,port=%s,serial=%s>" %
(repr(self.name), repr(self.port), repr(self.serial)))
def to_env(self):
env = {}
if self.name:
env['BOARD'] = self.name
if self.port:
env['PORT'] = self.port
if self.serial:
env['SERIAL'] = self.serial
return env
def clean(self, application=os.getcwd(), env=None):
self.build_strategy.execute(application, env)
def build(self, application=os.getcwd(), env=None):
self.build_strategy.execute(application, env)
def flash(self, application=os.getcwd(), env=None):
self.flash_strategy.execute(application, env)
def reset(self, application=os.getcwd(), env=None):
self.reset_strategy.execute(application, env)
class BoardGroup(object):
def __init__(self, boards):
self.boards = boards
def __len__(self):
return len(self.boards)
def __iter__(self):
return iter(self.boards)
def __repr__(self):
return str(self.boards)
def clean(self, application=os.getcwd(), env=None):
for board in self.boards:
board.clean(application, env)
def build(self, application=os.getcwd(), env=None):
for board in self.boards:
board.build(application, env)
def flash(self, application=os.getcwd(), env=None):
for board in self.boards:
board.flash(application, env)
def reset(self, application=os.getcwd(), env=None):
for board in self.boards:
board.reset(application, env)
def default_test_case(board_group, application, env=None):
for board in board_group:
env = os.environ.copy()
if env != None:
env.update(env)
env.update(board.to_env())
with pexpect.spawn("make", ["-C", application, "term"], env=env,
timeout=DEFAULT_TIMEOUT,
logfile=sys.stdout) as spawn:
spawn.expect("TEST: SUCCESS")
class TestStrategy(ApplicationStrategy):
def execute(self, board_groups, test_cases=[default_test_case],
timeout=DEFAULT_TIMEOUT, env=None):
for board_group in board_groups:
print("Testing for %s: " % board_group)
for test_case in test_cases:
board_group.reset()
test_case(board_group, self.app_dir, env=None)
sys.stdout.write('.')
sys.stdout.flush()
print()
def get_ipv6_address(spawn):
spawn.sendline(u"ifconfig")
spawn.expect(u"[A-Za-z0-9]{2}[0-9]+: inet6 (fe80::[0-9a-f:]+)")
return spawn.match.group(1)
def test_ipv6_send(board_group, application, env=None):
env_sender = os.environ.copy()
if env != None:
env_sender.update(env)
env_sender.update(board_group.boards[0].to_env())
env_receiver = os.environ.copy()
if env != None:
env_receiver.update(env)
env_receiver.update(board_group.boards[1].to_env())
with pexpect.spawn("make", ["-C", application, "term"], env=env_sender,
timeout=DEFAULT_TIMEOUT) as sender, \
pexpect.spawn("make", ["-C", application, "term"], env=env_receiver,
timeout=DEFAULT_TIMEOUT) as receiver:
ipprot = random.randint(0x00, 0xff)
receiver_ip = get_ipv6_address(receiver)
receiver.sendline(u"ip server start %d" % ipprot)
# wait for neighbor discovery to be done
time.sleep(5)
sender.sendline(u"ip send %s %d 01:23:45:67:89:ab:cd:ef" % (receiver_ip, ipprot))
sender.expect_exact(u"Success: send 8 byte to %s (next header: %d)" %
(receiver_ip, ipprot))
receiver.expect(u"000000 60 00 00 00 00 08 %s ff fe 80 00 00 00 00 00 00" % hex(ipprot)[2:])
receiver.expect(u"000010( [0-9a-f]{2}){8} fe 80 00 00 00 00 00 00")
receiver.expect(u"000020( [0-9a-f]{2}){8} 01 23 45 67 89 ab cd ef")
def test_udpv6_send(board_group, application, env=None):
env_sender = os.environ.copy()
if env != None:
env_sender.update(env)
env_sender.update(board_group.boards[0].to_env())
env_receiver = os.environ.copy()
if env != None:
env_receiver.update(env)
env_receiver.update(board_group.boards[1].to_env())
with pexpect.spawn("make", ["-C", application, "term"], env=env_sender,
timeout=DEFAULT_TIMEOUT) as sender, \
pexpect.spawn("make", ["-C", application, "term"], env=env_receiver,
timeout=DEFAULT_TIMEOUT) as receiver:
port = random.randint(0x0000, 0xffff)
receiver_ip = get_ipv6_address(receiver)
receiver.sendline(u"udp server start %d" % port)
# wait for neighbor discovery to be done
time.sleep(5)
sender.sendline(u"udp send %s %d ab:cd:ef" % (receiver_ip, port))
sender.expect_exact(u"Success: send 3 byte to [%s]:%d" %
(receiver_ip, port))
receiver.expect(u"000000 ab cd ef")
def test_dual_send(board_group, application, env=None):
env_sender = os.environ.copy()
if env != None:
env_sender.update(env)
env_sender.update(board_group.boards[0].to_env())
env_receiver = os.environ.copy()
if env != None:
env_receiver.update(env)
env_receiver.update(board_group.boards[1].to_env())
with pexpect.spawn("make", ["-C", application, "term"], env=env_sender,
timeout=DEFAULT_TIMEOUT) as sender, \
pexpect.spawn("make", ["-C", application, "term"], env=env_receiver,
timeout=DEFAULT_TIMEOUT) as receiver:
port = random.randint(0x0000, 0xffff)
ipprot = random.randint(0x00, 0xff)
receiver_ip = get_ipv6_address(receiver)
receiver.sendline(u"ip server start %d" % ipprot)
receiver.sendline(u"udp server start %d" % port)
# wait for neighbor discovery to be done
time.sleep(5)
sender.sendline(u"udp send %s %d 01:23" % (receiver_ip, port))
sender.expect_exact(u"Success: send 2 byte to [%s]:%d" %
(receiver_ip, port))
receiver.expect(u"000000 01 23")
sender.sendline(u"ip send %s %d 01:02:03:04" % (receiver_ip, ipprot))
sender.expect_exact(u"Success: send 4 byte to %s (next header: %d)" %
(receiver_ip, ipprot))
receiver.expect(u"000000 60 00 00 00 00 04 %s ff fe 80 00 00 00 00 00 00" % hex(ipprot)[2:])
receiver.expect(u"000010( [0-9a-f]{2}){8} fe 80 00 00 00 00 00 00")
receiver.expect(u"000020( [0-9a-f]{2}){8} 01 02 03 04")
if __name__ == "__main__":
del os.environ['TERMFLAGS']
TestStrategy().execute([BoardGroup((Board("native", "tap0"), \
Board("native", "tap1")))], \
[test_ipv6_send, test_udpv6_send, test_dual_send])

168
tests/lwip/udp.c

@ -0,0 +1,168 @@
/*
* Copyright (C) 2015 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup examples
* @{
*
* @file
* @brief Demonstrating the sending and receiving of UDP data over POSIX sockets.
*
* @author Martine Lenders <mlenders@inf.fu-berlin.de>
*
* @}
*/
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include "common.h"
#include "od.h"
#include "net/af.h"
#include "net/conn/udp.h"
#include "net/ipv6.h"
#include "thread.h"
#include "xtimer.h"
#ifdef MODULE_CONN_UDP
static char conn_inbuf[CONN_INBUF_SIZE];
static bool server_running;
static conn_udp_t server_conn;
static char server_stack[THREAD_STACKSIZE_DEFAULT];
static msg_t server_msg_queue[SERVER_MSG_QUEUE_SIZE];
static void *_server_thread(void *args)
{
ipv6_addr_t server_addr = IPV6_ADDR_UNSPECIFIED;
uint16_t port;
int res;
msg_init_queue(server_msg_queue, SERVER_MSG_QUEUE_SIZE);
/* parse port */
port = (uint16_t)atoi((char *)args);
if ((res = conn_udp_create(&server_conn, &server_addr,
sizeof(server_addr), AF_INET6, port)) < 0) {
printf("Unable to open UDP server on port %" PRIu16 " (error code %d)\n",
port, -res);
return NULL;
}
server_running = true;
printf("Success: started UDP server on port %" PRIu16 "\n", port);
while (1) {
int res;
ipv6_addr_t src;
size_t src_len = sizeof(ipv6_addr_t);
uint16_t sport;
if ((res = conn_udp_recvfrom(&server_conn, conn_inbuf, sizeof(conn_inbuf), &src,
&src_len, &sport)) < 0) {
puts("Error on receive");
}
else if (res == 0) {
puts("No data received");
}
else {
char addrstr[IPV6_ADDR_MAX_STR_LEN];
printf("Received from [%s]:%" PRIu16 ":\n", ipv6_addr_to_str(addrstr, &src,
sizeof(addrstr)), sport);
od_hex_dump(conn_inbuf, res, 0);
}
}
return NULL;
}
static int udp_send(char *addr_str, char *port_str, char *data, unsigned int num,
unsigned int delay)
{
ipv6_addr_t src = IPV6_ADDR_UNSPECIFIED, dst;
uint16_t port;
uint8_t byte_data[strlen(data) / 2];
size_t data_len;
/* parse destination address */
if (ipv6_addr_from_str(&dst, addr_str) == NULL) {
puts("Error: unable to parse destination address");
return 1;
}
/* parse port */
port = (uint16_t)atoi(port_str);
data_len = hex2ints(byte_data, data);
for (unsigned int i = 0; i < num; i++) {
if (conn_udp_sendto(byte_data, data_len, &src, sizeof(src), (struct sockaddr *)&dst,
sizeof(dst), AF_INET6, port, port) < 0) {
puts("could not send");
}
else {
printf("Success: send %u byte to [%s]:%" PRIu16 ")\n",
(unsigned)data_len, addr_str, port);
}
xtimer_usleep(delay);
}
return 0;
}
static int udp_start_server(char *port_str)
{
if (thread_create(server_stack, sizeof(server_stack), THREAD_PRIORITY_MAIN - 1,
THREAD_CREATE_STACKTEST, _server_thread, port_str,
"UDP server") <= KERNEL_PID_UNDEF) {
return 1;
}
return 0;
}
int udp_cmd(int argc, char **argv)
{
if (argc < 2) {
printf("usage: %s [send|server]\n", argv[0]);
return 1;
}
if (strcmp(argv[1], "send") == 0) {
uint32_t num = 1;
uint32_t delay = 1000000;
if (argc < 5) {
printf("usage: %s send <addr> <port> <hex data> [<num> [<delay in us>]]\n",
argv[0]);
return 1;
}
if (argc > 5) {
num = (uint32_t)atoi(argv[5]);
}
if (argc > 6) {
delay = (uint32_t)atoi(argv[6]);
}
return udp_send(argv[2], argv[3], argv[4], num, delay);
}
else if (strcmp(argv[1], "server") == 0) {
if (argc < 3) {
printf("usage: %s server [start|stop]\n", argv[0]);
return 1;
}
if (strcmp(argv[2], "start") == 0) {
if (argc < 4) {
printf("usage %s server start <port>\n", argv[0]);
return 1;
}
return udp_start_server(argv[3]);
}
else {
puts("error: invalid command");
return 1;
}
}
else {
puts("error: invalid command");
return 1;
}
}
#else
typedef int dont_be_pedantic;
#endif
/** @} */
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