view toys/clear.c @ 551:2548e6e590b2

Add string to mode_t parser added new function string_to_mode(char *m_string, mode_t base) which parses a given string and converts it to a mode_t. If either + or - are part of m_string the permissions are either added or removed from base. Currently support for permision copy is missing (e.g. g=u), but all other flags should work. Format for m_string: either symbolic modes or octal representation. symbolic modes: [auog][[+-=][rwxst]*] examples: string_to_mode("u=rwx,g=rw,o=r", 0); string_to_mode("a-x", 0777); string_to_mode("0744", 0);
author Daniel Walter <d.walter@0x90.at>
date Mon, 19 Mar 2012 19:57:56 -0500
parents c5c11dff9308
children
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/* vi: set sw=4 ts=4:
 *
 * clear.c - clear the screen
 *
 * Copyright 2012 Rob Landley <rob@landley.net>
 *
 * Not in SUSv4.

USE_CLEAR(NEWTOY(clear, NULL, TOYFLAG_USR|TOYFLAG_BIN))

config CLEAR
	bool "clear"
	default y
	help
	  Clear the screen.
*/

#include "toys.h"

void clear_main(void)
{
	write(1, "\e[2J\e[H", 7);
}