diff options
Diffstat (limited to 'client/birdcl.c')
-rw-r--r-- | client/birdcl.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/client/birdcl.c b/client/birdcl.c new file mode 100644 index 00000000..2d5e1067 --- /dev/null +++ b/client/birdcl.c @@ -0,0 +1,160 @@ +/* + * 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(); +} |