udhcp: use improved gethostbyname replacement from IPv6 code
[oweals/busybox.git] / console-tools / resize.c
1 /* vi: set sw=4 ts=4: */
2 /*
3  * resize - set terminal width and height.
4  *
5  * Copyright 2006 Bernhard Fischer
6  *
7  * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
8  */
9 /* no options, no getopt */
10 #include "busybox.h"
11
12 int resize_main(int argc, char **argv);
13 int resize_main(int argc, char **argv)
14 {
15         struct termios old, new;
16         struct winsize w = {0,0,0,0};
17         int ret;
18
19         tcgetattr(STDOUT_FILENO, &old); /* fiddle echo */
20         new = old;
21         new.c_cflag |= (CLOCAL | CREAD);
22         new.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);
23         tcsetattr(STDOUT_FILENO, TCSANOW, &new);
24         /* save_cursor_pos 7
25          * scroll_whole_screen [r
26          * put_cursor_waaaay_off [$x;$yH
27          * get_cursor_pos [6n
28          * restore_cursor_pos 8
29          */
30         printf("\0337\033[r\033[999;999H\033[6n");
31         scanf("\033[%hu;%huR", &w.ws_row, &w.ws_col);
32         ret = ioctl(STDOUT_FILENO, TIOCSWINSZ, &w);
33         printf("\0338");
34         tcsetattr(STDOUT_FILENO, TCSANOW, &old);
35         if (ENABLE_FEATURE_RESIZE_PRINT)
36                 printf("COLUMNS=%d;LINES=%d;export COLUMNS LINES;\n",
37                         w.ws_col, w.ws_row);
38         return ret;
39 }