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/*
* BIRD Client - Light variant I/O
*
* (c) 1999--2004 Martin Mares <mj@ucw.cz>
* (c) 2013 Tomas Hlavacek <tomas.hlavacek@nic.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <termios.h>
#include <sys/ioctl.h>
#include <signal.h>
#include "nest/bird.h"
#include "lib/resource.h"
#include "lib/string.h"
#include "client/client.h"
#include "sysdep/unix/unix.h"
#define INPUT_BUF_LEN 2048
struct termios tty_save;
void
input_start_list(void)
{
/* Empty in non-ncurses version. */
}
void
input_stop_list(void)
{
/* Empty in non-ncurses version. */
}
void
input_notify(int prompt)
{
/* No ncurses -> no status to reveal/hide, print prompt manually. */
if (!prompt)
return;
printf("bird> ");
fflush(stdout);
}
static int
lastnb(char *str, int i)
{
while (i--)
if ((str[i] != ' ') && (str[i] != '\t'))
return str[i];
return 0;
}
void
input_read(void)
{
char buf[INPUT_BUF_LEN];
if ((fgets(buf, INPUT_BUF_LEN, stdin) == NULL) || (buf[0] == 0))
{
putchar('\n');
cleanup();
exit(0);
}
int l = strlen(buf);
if ((l+1) == INPUT_BUF_LEN)
{
printf("Input too long.\n");
return;
}
if (buf[l-1] == '\n')
buf[--l] = '\0';
if (!interactive)
printf("%s\n", buf);
if (l == 0)
return;
if (lastnb(buf, l) == '?')
{
cmd_help(buf, strlen(buf));
return;
}
submit_command(buf);
}
static struct termios stored_tty;
static int more_active = 0;
void
more_begin(void)
{
static struct termios tty;
tty = stored_tty;
tty.c_lflag &= (~ECHO);
tty.c_lflag &= (~ICANON);
if (tcsetattr (0, TCSANOW, &tty) < 0)
die("tcsetattr: %m");
more_active = 1;
}
void
more_end(void)
{
more_active = 0;
if (tcsetattr (0, TCSANOW, &stored_tty) < 0)
die("tcsetattr: %m");
}
static void
sig_handler(int signal)
{
cleanup();
exit(0);
}
void
input_init(void)
{
if (!interactive)
return;
if (tcgetattr(0, &stored_tty) < 0)
die("tcgetattr: %m");
if (signal(SIGINT, sig_handler) == SIG_IGN)
signal(SIGINT, SIG_IGN);
if (signal(SIGTERM, sig_handler) == SIG_IGN)
signal(SIGTERM, SIG_IGN);
struct winsize tws;
if (ioctl(0, TIOCGWINSZ, &tws) == 0)
{
term_lns = tws.ws_row;
term_cls = tws.ws_col;
}
}
void
cleanup(void)
{
if (more_active)
more_end();
}
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