bird/client/birdcl.c
Ondrej Zajicek a5e9f3d26f Restructures birdc and birdcl to merge duplicated code.
The BIRD client code is restructured that most of the code (including
main function) is shared in client.c, while birdc.c and birdcl.c contain
just I/O-specific callbacks. This removes all duplicated code from
variant-specific files.
2013-04-23 02:42:35 +02:00

165 lines
2.4 KiB
C

/*
* 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;
}
else
{
term_lns = 25;
term_cls = 80;
}
}
void
cleanup(void)
{
if (more_active)
more_end();
}