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view toys/other/freeramdisk.c @ 1577:ac84a209cb05 draft

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sed: c needs to trigger range logic like d, D works like d when there isn't anything left in the line, and more tests.
author Rob Landley <rob@landley.net>
date Thu, 27 Nov 2014 20:38:21 -0600
parents bd4e3608ad04
children
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/* freeramdisk.c - Free all memory allocated to ramdisk
 *
 * Copyright 2014 Vivek Kumar Bhagat <vivek.bhagat89@gmail.com>
 *
 * No Standard

USE_FREERAMDISK(NEWTOY(freeramdisk, "<1>1", TOYFLAG_SBIN|TOYFLAG_NEEDROOT))

config FREERAMDISK
  bool "freeramdisk"
  default y
  help
    usage: freeramdisk [RAM device]

    Free all memory allocated to specified ramdisk
*/

#include "toys.h"

void freeramdisk_main(void)
{
  int fd;

  fd = xopen(toys.optargs[0], O_RDWR);
  xioctl(fd, BLKFLSBUF, toys.optargs[0]);
  if (CFG_TOYBOX_FREE) xclose(fd);
}