/**
* @file
*
* @brief RTEMS shell is started and it is possible to run net commands.
*/
/*
* COPYRIGHT (c) 2012. On-Line Applications Research Corporation (OAR).
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*/
#include <assert.h>
#include <errno.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <rtems/shell.h>
#include <rtems/termiostypes.h>
#define TEST_NAME "LIBBSD NETSHELL 1"
#define TEST_STATE_USER_INPUT 1
static void
change_serial_settings(int fd, const struct termios *current, bool icanon)
{
struct termios term = *current;
term.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR |
ICRNL | IXON);
term.c_lflag &= ~(ECHO | ECHOE | ECHOK | ECHONL | ECHOPRT | ECHOCTL |
ECHOKE | ICANON | ISIG | IEXTEN);
term.c_cflag &= ~(CSIZE | PARENB);
term.c_cflag |= CS8;
term.c_oflag &= ~(OPOST | ONLRET | ONLCR | OCRNL | ONLRET | TABDLY |
OLCUC);
term.c_cc[VMIN] = 0;
term.c_cc[VTIME] = 10;
if (icanon) {
term.c_iflag |= ICRNL;
term.c_lflag |= ICANON;
}
tcsetattr(fd, TCSANOW, &term);
}
static void
do_read_select(int fd)
{
int nfds = fd + 1;
struct fd_set read_set;
struct timeval timeout = {
.tv_sec = 10,
.tv_usec = 0
};
int rv;
FD_ZERO(&read_set);
FD_SET(fd, &read_set);
rv = select(nfds, &read_set, NULL, NULL, &timeout);
if (rv == 0) {
printf("timeout\n");
} else if (rv > 0) {
if (FD_ISSET(fd, &read_set)) {
char buf[512];
ssize_t n = read(fd, buf, sizeof(buf));
printf("read returned %zi\n", n);
}
} else {
perror("select failed");
}
}
static void
do_write_select(int fd)
{
int nfds = fd + 1;
struct fd_set write_set;
struct timeval to = {
.tv_sec = 0,
.tv_usec = 1
};
struct timeval *timeout = &to;
char buf[512];
int rv;
size_t i;
memset(buf, 'a', sizeof(buf));
for (i = 0; i < sizeof(buf); i += 24) {
buf[i] = '\r';
buf[i + 1] = '\n';
}
for (i = 0; i < 10; ++i) {
write(fd, buf, sizeof(buf));
FD_ZERO(&write_set);
FD_SET(fd, &write_set);
rv = select(nfds, NULL, &write_set, NULL, timeout);
if (rv == 0) {
printf("timeout\n");
} else {
printf("write set: %i\n", FD_ISSET(fd, &write_set));
}
timeout = NULL;
}
}
static int
termiosselect_command(int argc, char *argv[])
{
bool icanon = argc > 1 && strcmp(argv[1], "icanon") == 0;
int fd = STDIN_FILENO;
struct termios term;
int rv = tcgetattr(fd, &term);
assert(rv == 0);
change_serial_settings(fd, &term, icanon);
do_read_select(fd);
do_write_select(STDOUT_FILENO);
tcsetattr(fd, TCSANOW, &term);
return (0);
}
rtems_shell_cmd_t rtems_shell_ARP_Command = {
.name = "termiosselect",
.usage = "termiosselect [icanon]",
.topic = "net",
.command = termiosselect_command
};
static void
test_main(void)
{
rtems_shell_env_t env;
rtems_shell_dup_current_env(&env);
rtems_shell_main_loop(&env);
exit(0);
}
#define RTEMS_BSD_CONFIG_TERMIOS_KQUEUE_AND_POLL
#include <rtems/bsd/test/default-init.h>
