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/*
* Copyright (c) 2015 Richard Braun.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <termios.h>
#include <unistd.h>
#include "../error.h"
#include "../macros.h"
#include "../shell.h"
static void
test_exit(int argc, char *argv[])
{
(void)argc;
(void)argv;
/* Calling exit directly doesn't reset the terminal */
raise(SIGINT);
}
static void
test_top(int argc, char *argv[])
{
(void)argc;
(void)argv;
system("top");
}
static void
test_add(int argc, char *argv[])
{
int i, ret, tmp, total;
if (argc < 3) {
printf("shell: add: invalid arguments\n");
return;
}
for (total = 0, i = 1; i < argc; i++) {
ret = sscanf(argv[i], "%d", &tmp);
if (ret != 1) {
printf("shell: add: '%s': invalid argument\n", argv[i]);
return;
}
total += tmp;
}
printf("%d\n", total);
}
static struct shell_cmd test_shell_cmds[] = {
SHELL_CMD_INITIALIZER2("add", test_add,
"add <i1 i2 [i3 ...]>", "add integers",
"The user must pass at least two integers"),
SHELL_CMD_INITIALIZER("top", test_top,
"top", "display system processes"),
SHELL_CMD_INITIALIZER("exit", test_exit,
"exit", "leave the shell"),
};
int
main(int argc, char *argv[])
{
struct termios termios;
unsigned int i;
int ret;
(void)argc;
(void)argv;
for (i = 0; i < ARRAY_SIZE(test_shell_cmds); i++) {
ret = shell_cmd_register(&test_shell_cmds[i]);
if (ret) {
error_die(ret);
}
}
setbuf(stdin, NULL);
ret = tcgetattr(fileno(stdin), &termios);
if (ret) {
perror("tcgetattr");
return EXIT_FAILURE;
}
termios.c_lflag &= ~(ICANON | ECHO);
termios.c_cc[VMIN] = 1;
ret = tcsetattr(fileno(stdin), TCSANOW, &termios);
if (ret) {
perror("tcsetattr");
return EXIT_FAILURE;
}
shell_setup();
shell_run();
test_exit(0, NULL);
}
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