mirror of
https://github.com/sheumann/hush.git
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4eb8b936cb
fill whole 1st screen (was "screen sans one line");
fall back to cat if redirected or no ctty
less: fall back to cat if no ctty (was exiting)
resize: cosmetics
42 lines
1.0 KiB
C
42 lines
1.0 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* resize - set terminal width and height.
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*
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* Copyright 2006 Bernhard Fischer
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*
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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*/
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/* no options, no getopt */
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#include "busybox.h"
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#define ESC "\033"
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int resize_main(int argc, char **argv);
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int resize_main(int argc, char **argv)
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{
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struct termios old, new;
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struct winsize w = {0,0,0,0};
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int ret;
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tcgetattr(STDOUT_FILENO, &old); /* fiddle echo */
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new = old;
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new.c_cflag |= (CLOCAL | CREAD);
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new.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);
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tcsetattr(STDOUT_FILENO, TCSANOW, &new);
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/* save_cursor_pos 7
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* scroll_whole_screen [r
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* put_cursor_waaaay_off [$x;$yH
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* get_cursor_pos [6n
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* restore_cursor_pos 8
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*/
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printf(ESC"7" ESC"[r" ESC"[999;999H" ESC"[6n");
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scanf(ESC"[%hu;%huR", &w.ws_row, &w.ws_col);
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ret = ioctl(STDOUT_FILENO, TIOCSWINSZ, &w);
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printf(ESC"8");
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tcsetattr(STDOUT_FILENO, TCSANOW, &old);
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if (ENABLE_FEATURE_RESIZE_PRINT)
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printf("COLUMNS=%d;LINES=%d;export COLUMNS LINES;\n",
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w.ws_col, w.ws_row);
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return ret;
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}
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