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