Signed-off-by: Pere Orga <gotrunks@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
		
			
				
	
	
		
			55 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			55 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/* vi: set sw=4 ts=4: */
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/*
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 * Mini reset implementation for busybox
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 *
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 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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 * Written by Erik Andersen and Kent Robotti <robotti@metconnect.com>
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 *
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 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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 */
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/* BTW, which "standard" package has this utility? It doesn't seem
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 * to be ncurses, coreutils, console-tools... then what? */
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//usage:#define reset_trivial_usage
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//usage:       ""
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//usage:#define reset_full_usage "\n\n"
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//usage:       "Reset the screen"
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#include "libbb.h"
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#define ESC "\033"
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#if ENABLE_STTY
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int stty_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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#endif
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int reset_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int reset_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
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{
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	static const char *const args[] = {
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		"stty", "sane", NULL
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	};
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	/* no options, no getopt */
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	if (/*isatty(STDIN_FILENO) &&*/ isatty(STDOUT_FILENO)) {
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		/* See 'man 4 console_codes' for details:
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		 * "ESC c"        -- Reset
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		 * "ESC ( B"      -- Select G0 Character Set (B = US)
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		 * "ESC [ 0 m"    -- Reset all display attributes
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		 * "ESC [ J"      -- Erase to the end of screen
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		 * "ESC [ ? 25 h" -- Make cursor visible
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		 */
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		printf(ESC"c" ESC"(B" ESC"[0m" ESC"[J" ESC"[?25h");
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		/* http://bugs.busybox.net/view.php?id=1414:
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		 * people want it to reset echo etc: */
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#if ENABLE_STTY
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		return stty_main(2, (char**)args);
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#else
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		execvp("stty", (char**)args);
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#endif
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	}
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	return EXIT_SUCCESS;
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}
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