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Tito unified fdflush and freeramdisk. I tweaked the result a bit.

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This commit is contained in:
Rob Landley 2006-03-14 02:40:51 +00:00
parent 2f135fc6bf
commit 0b22c1c962
4 changed files with 11 additions and 96 deletions
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2
include/applets.h
View File

@ -106,7 +106,7 @@ USE_EXPR(APPLET(expr, expr_main, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
USE_FAKEIDENTD(APPLET(fakeidentd, fakeidentd_main, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
USE_FALSE(APPLET(false, false_main, _BB_DIR_BIN, _BB_SUID_NEVER))
USE_FBSET(APPLET(fbset, fbset_main, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
USE_FDFLUSH(APPLET(fdflush, fdflush_main, _BB_DIR_BIN, _BB_SUID_NEVER))
USE_FDFLUSH(APPLET(fdflush, freeramdisk_main, _BB_DIR_BIN, _BB_SUID_NEVER))
USE_FDFORMAT(APPLET(fdformat, fdformat_main, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
USE_FDISK(APPLET(fdisk, fdisk_main, _BB_DIR_SBIN, _BB_SUID_NEVER))
USE_FEATURE_GREP_FGREP_ALIAS(APPLET_NOUSAGE("fgrep", grep_main, _BB_DIR_BIN, _BB_SUID_NEVER))

2
util-linux/Makefile.in
View File

@ -13,7 +13,7 @@ srcdir=$(top_srcdir)/util-linux
UTILLINUX-y:=
UTILLINUX-$(CONFIG_DMESG) +=dmesg.o
UTILLINUX-$(CONFIG_FBSET) +=fbset.o
UTILLINUX-$(CONFIG_FDFLUSH) +=fdflush.o
UTILLINUX-$(CONFIG_FDFLUSH) +=freeramdisk.o
UTILLINUX-$(CONFIG_FDFORMAT) +=fdformat.o
UTILLINUX-$(CONFIG_FDISK) +=fdisk.o
UTILLINUX-$(CONFIG_FREERAMDISK) +=freeramdisk.o

54
util-linux/fdflush.c
View File

@ -1,54 +0,0 @@
/* vi: set sw=4 ts=4: */
/*
* Mini fdflush implementation for busybox
*
* Copyright (C) 1995, 1996 by Bruce Perens <bruce@perens.com>.
* Copyright (C) 2003 by Erik Andersen <andersen@codeoet.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <stdio.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include "busybox.h"
/* From <linux/fd.h> */
#define FDFLUSH _IO(2,0x4b)
int fdflush_main(int argc, char **argv)
{
int fd, result;
if (argc != 2)
bb_show_usage();
fd = bb_xopen(argv[1], 0);
result = ioctl(fd, FDFLUSH, 0);
if (ENABLE_FEATURE_CLEAN_UP) close(fd);
if (result) {
bb_perror_nomsg_and_die();
}
/* Don't bother closing. Exit does
* that, so we can save a few bytes */
return EXIT_SUCCESS;
}

49
util-linux/freeramdisk.c
View File

@ -1,24 +1,12 @@
/* vi: set sw=4 ts=4: */
/*
* freeramdisk implementation for busybox
* freeramdisk and fdflush implementations for busybox
*
* Copyright (C) 2000 and written by Emanuele Caratti <wiz@iol.it>
* Adjusted a bit by Erik Andersen <andersen@codepoet.org>
* Unified with fdflush by Tito Ragusa <farmatito@tiscali.it>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
#include <stdio.h>
@ -30,40 +18,21 @@
#include <unistd.h>
#include "busybox.h"
/* From linux/fs.h */
#define BLKFLSBUF _IO(0x12,97) /* flush buffer cache */
extern int
freeramdisk_main(int argc, char **argv)
extern int freeramdisk_main(int argc, char **argv)
{
int result;
int fd;
if (argc != 2) {
bb_show_usage();
}
if (argc != 2) bb_show_usage();
fd = bb_xopen(argv[1], O_RDWR);
result = ioctl(fd, BLKFLSBUF);
// Act like freeramdisk, fdflush, or both depending on configuration.
result = ioctl(fd, (bb_applet_name[1]=='r' && ENABLE_FREERAMDISK)
|| !ENABLE_FDFLUSH ? _IO(0x12,97) : _IO(2,0x4b));
if (ENABLE_FEATURE_CLEAN_UP) close(fd);
if (result < 0) {
bb_perror_msg_and_die("failed ioctl on %s", argv[1]);
}
/* Don't bother closing. Exit does
* that, so we can save a few bytes */
if (result) bb_perror_msg_and_die("%s", argv[1]);
return EXIT_SUCCESS;
}
/*
Local Variables:
c-file-style: "linux"
c-basic-offset: 4
tab-width: 4
End:
*/