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view toys/swapon.c @ 551:2548e6e590b2

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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 26db0cd433f3
children
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/* vi: set sw=4 ts=4:
 *
 * swapon.c - Enable region for swapping
 *
 * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com>
 *
 * Not in SUSv4.

USE_SWAPON(NEWTOY(swapon, "<1>1p#<0>32767", TOYFLAG_BIN|TOYFLAG_NEEDROOT))

config SWAPON
	bool "swapon"
	default y
	help
	  usage: swapon [-p priority] filename

	  Enable swapping on a given device/file.
*/

#include "toys.h"

DEFINE_GLOBALS(
	long priority;
)

#define TT this.swapon

void swapon_main(void)
{
	int flags = 0;

	if (toys.optflags & 1)
		flags = SWAP_FLAG_PREFER | (TT.priority << SWAP_FLAG_PRIO_SHIFT);

	if (swapon(*toys.optargs, flags))
		perror_exit("Couldn't swapon '%s'", *toys.optargs);
}