* Adjusted a bit by Erik Andersen <andersen@codepoet.org>
* Unified with fdflush by Tito Ragusa <farmatito@tiscali.it>
*
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2, see file LICENSE in this tarball for details.
*/
+#include <sys/mount.h>
+#include "libbb.h"
-#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-#include <fcntl.h>
-#include <sys/ioctl.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include "busybox.h"
+/* From <linux/fd.h> */
+#define FDFLUSH _IO(2,0x4b)
-int freeramdisk_main(int argc, char **argv)
+int freeramdisk_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int freeramdisk_main(int argc UNUSED_PARAM, char **argv)
{
- int result;
int fd;
- if (argc != 2) bb_show_usage();
-
- fd = bb_xopen(argv[1], O_RDWR);
+ fd = xopen(single_argv(argv), O_RDWR);
// Act like freeramdisk, fdflush, or both depending on configuration.
- result = ioctl(fd, (ENABLE_FREERAMDISK && bb_applet_name[1]=='r')
- || !ENABLE_FDFLUSH ? _IO(0x12,97) : _IO(2,0x4b));
+ ioctl_or_perror_and_die(fd, (ENABLE_FREERAMDISK && applet_name[1] == 'r')
+ || !ENABLE_FDFLUSH ? BLKFLSBUF : FDFLUSH, NULL, "%s", argv[1]);
if (ENABLE_FEATURE_CLEAN_UP) close(fd);
- if (result) bb_perror_msg_and_die("%s", argv[1]);
return EXIT_SUCCESS;
}