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9fc5d538fc
document the libufs interface for fetching and storing inodes. The undocumented getino / putino interface has been replaced with a new getinode / putinode interface. Convert the utilities that had been using the undocumented interface to use the new documented interface. No functional change (as for now the libufs library does not do inode check-hashes). Reviewed by: kib Tested by: Peter Holm Sponsored by: Netflix
123 lines
3.5 KiB
C
123 lines
3.5 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Rich $alz of BBN Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if 0
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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1990, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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static char sccsid[] = "@(#)clri.c 8.2 (Berkeley) 9/23/93";
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#endif /* not lint */
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#endif
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/disklabel.h>
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#include <ufs/ufs/dinode.h>
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#include <ufs/ffs/fs.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <libufs.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <unistd.h>
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static void
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usage(void)
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{
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(void)fprintf(stderr, "usage: clri special_device inode_number ...\n");
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exit(1);
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}
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int
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main(int argc, char *argv[])
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{
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union dinodep dp;
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struct uufsd disk;
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long generation;
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int inonum, exitval;
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char *fsname;
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if (argc < 3)
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usage();
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/* get the superblock. */
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fsname = *++argv;
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if (ufs_disk_fillout(&disk, fsname) == -1) {
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printf("loading superblock: %s\n", disk.d_error);
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exit (1);
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}
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/* remaining arguments are inode numbers. */
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exitval = 0;
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while (*++argv) {
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/* get the inode number. */
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if ((inonum = atoi(*argv)) < UFS_ROOTINO) {
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printf("%s is not a valid inode number", *argv);
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exitval = 1;
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continue;
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}
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(void)printf("clearing %d\n", inonum);
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if (getinode(&disk, &dp, inonum) == -1) {
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printf("getinode: %s\n", disk.d_error);
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exitval = 1;
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continue;
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}
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/* clear the inode, and bump the generation count. */
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if (disk.d_fs.fs_magic == FS_UFS1_MAGIC) {
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generation = dp.dp1->di_gen + 1;
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memset(dp.dp1, 0, sizeof(*dp.dp1));
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dp.dp1->di_gen = generation;
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} else {
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generation = dp.dp2->di_gen + 1;
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memset(dp.dp2, 0, sizeof(*dp.dp2));
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dp.dp2->di_gen = generation;
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}
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putinode(&disk);
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(void)fsync(disk.d_fd);
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}
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(void)ufs_disk_close(&disk);
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exit(exitval);
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}
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