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- add new applet resize.

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text    data     bss     dec     hex filename
    185       0       0     185      b9 console-tools/resize.o
    255       0       0     255      ff console-tools/resize.o.print
This commit is contained in:
Bernhard Reutner-Fischer 2006-09-22 08:18:41 +00:00
parent e9a7a6212b
commit ae843e9cc8
5 changed files with 62 additions and 0 deletions
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17
console-tools/Config.in
View File

@ -58,6 +58,23 @@ config CONFIG_RESET
This program is used to reset the terminal screen, if it
gets messed up.
config CONFIG_APP_RESIZE
bool "resize"
default n
help
This program is used to (re)set the width and height of your current
terminal.
config CONFIG_FEATURE_RESIZE_PRINT
bool "print environment variables"
default n
depends on CONFIG_APP_RESIZE
help
Prints the newly set size (number of columns and rows) of
the terminal.
E.g.:
COLUMNS=80;LINES=44;export COLUMNS LINES;
config CONFIG_SETCONSOLE
bool "setconsole"
default n

1
console-tools/Makefile.in
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@ -20,6 +20,7 @@ CONSOLETOOLS-$(CONFIG_LOADFONT) += loadfont.o
CONSOLETOOLS-$(CONFIG_LOADKMAP) += loadkmap.o
CONSOLETOOLS-$(CONFIG_OPENVT) += openvt.o
CONSOLETOOLS-$(CONFIG_RESET) += reset.o
CONSOLETOOLS-$(CONFIG_APP_RESIZE) += resize.o
CONSOLETOOLS-$(CONFIG_SETKEYCODES) += setkeycodes.o
CONSOLETOOLS-$(CONFIG_SETLOGCONS) += setlogcons.o

38
console-tools/resize.c Normal file
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@ -0,0 +1,38 @@
/* vi: set sw=4 ts=4: */
/*
* resize - set terminal width and height.
*
* Copyright 2006 Bernhard Fischer
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
/* no options, no getopt */
#include "busybox.h"
int resize_main(int argc, char **argv)
{
struct termios old, new;
struct winsize w = {0,0,0,0};
int ret;
tcgetattr(STDOUT_FILENO, &old); /* fiddle echo */
new = old;
new.c_cflag |= (CLOCAL | CREAD);
new.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);
tcsetattr(STDOUT_FILENO, TCSANOW, &new);
/* save_cursor_pos 7
* scroll_whole_screen [r
* put_cursor_waaaay_off [$x;$yH
* get_cursor_pos [6n
* restore_cursor_pos 8
*/
printf("\0337\033[r\033[999;999H\033[6n");
scanf("\033[%hu;%huR", &w.ws_row, &w.ws_col);
ret = ioctl(STDOUT_FILENO, TIOCSWINSZ, &w);
printf("\0338");
tcsetattr(STDOUT_FILENO, TCSANOW, &old);
if (ENABLE_FEATURE_RESIZE_PRINT)
printf("COLUMNS=%d;LINES=%d;export COLUMNS LINES;",
w.ws_col, w.ws_row);
return ret;
}

1
include/applets.h
View File

@ -226,6 +226,7 @@ USE_REALPATH(APPLET(realpath, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
USE_HALT(APPLET_ODDNAME(reboot, halt, _BB_DIR_SBIN, _BB_SUID_NEVER, reboot))
USE_RENICE(APPLET(renice, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
USE_RESET(APPLET(reset, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
USE_APP_RESIZE(APPLET(resize, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
USE_RM(APPLET(rm, _BB_DIR_BIN, _BB_SUID_NEVER))
USE_RMDIR(APPLET(rmdir, _BB_DIR_BIN, _BB_SUID_NEVER))
USE_RMMOD(APPLET(rmmod, _BB_DIR_SBIN, _BB_SUID_NEVER))

5
include/usage.h
View File

@ -2455,6 +2455,11 @@ USE_FEATURE_MDEV_CONFIG( \
#define reset_full_usage \
"Resets the screen."
#define resize_trivial_usage \
""
#define resize_full_usage \
"Resizes the screen."
#define rm_trivial_usage \
"[OPTION]... FILE..."
#define rm_full_usage \