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https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
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eba230afba
These do not use __FBSDID but instead use bare char arrays. Reviewed by: imp, emaste Differential Revision: https://reviews.freebsd.org/D41957
1284 lines
30 KiB
C
1284 lines
30 KiB
C
/* $NetBSD: fsdb.c,v 1.2 1995/10/08 23:18:10 thorpej Exp $ */
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/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1995 John T. Kohl
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* All rights reserved.
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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. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <ctype.h>
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#include <err.h>
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#include <grp.h>
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#include <histedit.h>
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#include <pwd.h>
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#include <stdint.h>
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#include <string.h>
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#include <time.h>
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#include <timeconv.h>
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#include <ufs/ufs/dinode.h>
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#include <ufs/ufs/dir.h>
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#include <ufs/ffs/fs.h>
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#include "fsdb.h"
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#include "fsck.h"
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static void usage(void) __dead2;
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int cmdloop(void);
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static int compare_blk32(uint32_t *wantedblk, uint32_t curblk);
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static int compare_blk64(uint64_t *wantedblk, uint64_t curblk);
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static int founddatablk(uint64_t blk);
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static int find_blks32(uint32_t *buf, int size, uint32_t *blknum);
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static int find_blks64(uint64_t *buf, int size, uint64_t *blknum);
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static int find_indirblks32(uint32_t blk, int ind_level, uint32_t *blknum);
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static int find_indirblks64(uint64_t blk, int ind_level, uint64_t *blknum);
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/*
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* Track modifications to the filesystem. Two types of changes are tracked.
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* The first type of changes are those that are not critical to the integrity
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* of the filesystem such as owner, group, time stamps, access mode, and
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* generation number. The second type of changes are those that do affect
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* the integrity of the filesystem including zeroing inodes, changing block
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* pointers, directory entries, link counts, file lengths, file types and
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* file flags.
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*
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* When quitting having made no changes or only changes to data that is not
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* critical to filesystem integrity, the clean state of the filesystem is
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* left unchanged. But if filesystem critical data are changed then fsdb
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* will set the unclean flag which will require a full fsck to be run
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* before the filesystem can be mounted.
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*/
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static int fsnoncritmodified; /* filesystem non-critical modifications */
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static int fscritmodified; /* filesystem integrity critical mods */
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struct inode curip;
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union dinode *curinode;
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ino_t curinum, ocurrent;
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static void
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usage(void)
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{
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fprintf(stderr, "usage: fsdb [-d] [-f] [-r] fsname\n");
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exit(1);
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}
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/*
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* We suck in lots of fsck code, and just pick & choose the stuff we want.
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*
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* fsreadfd is set up to read from the file system, fswritefd to write to
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* the file system.
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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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int ch, rval;
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char *fsys = NULL;
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while (-1 != (ch = getopt(argc, argv, "fdr"))) {
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switch (ch) {
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case 'f':
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/* The -f option is left for historical
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* reasons and has no meaning.
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*/
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break;
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case 'd':
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debug++;
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break;
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case 'r':
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nflag++; /* "no" in fsck, readonly for us */
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break;
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default:
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usage();
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}
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}
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argc -= optind;
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argv += optind;
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if (argc != 1)
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usage();
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else
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fsys = argv[0];
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sblock_init();
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if (openfilesys(fsys) == 0 || readsb() == 0 || setup(fsys) == 0)
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errx(1, "cannot set up file system `%s'", fsys);
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if (fswritefd < 0)
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nflag++;
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printf("%s file system `%s'\nLast Mounted on %s\n",
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nflag? "Examining": "Editing", fsys, sblock.fs_fsmnt);
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rval = cmdloop();
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if (!nflag) {
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if (fscritmodified != 0) {
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sblock.fs_clean = 0; /* mark it dirty */
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sbdirty();
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}
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ckfini(fscritmodified ? 0 : sblock.fs_clean);
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if (fscritmodified == 0)
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exit(0);
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printf("*** FILE SYSTEM MARKED DIRTY\n");
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printf("*** BE SURE TO RUN FSCK TO CLEAN UP ANY DAMAGE\n");
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printf("*** IF IT IS MOUNTED, RE-MOUNT WITH -u -o reload\n");
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}
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exit(rval);
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}
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#define CMDFUNC(func) int func(int argc, char *argv[])
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#define CMDFUNCSTART(func) int func(int argc, char *argv[])
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CMDFUNC(helpfn);
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CMDFUNC(focus); /* focus on inode */
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CMDFUNC(active); /* print active inode */
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CMDFUNC(blocks); /* print blocks for active inode */
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CMDFUNC(focusname); /* focus by name */
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CMDFUNC(zapi); /* clear inode */
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CMDFUNC(uplink); /* incr link */
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CMDFUNC(downlink); /* decr link */
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CMDFUNC(linkcount); /* set link count */
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CMDFUNC(quit); /* quit */
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CMDFUNC(quitclean); /* quit with filesystem marked clean */
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CMDFUNC(findblk); /* find block */
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CMDFUNC(ls); /* list directory */
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CMDFUNC(rm); /* remove name */
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CMDFUNC(ln); /* add name */
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CMDFUNC(newtype); /* change type */
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CMDFUNC(chmode); /* change mode */
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CMDFUNC(chlen); /* change length */
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CMDFUNC(chaflags); /* change flags */
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CMDFUNC(chgen); /* change generation */
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CMDFUNC(chowner); /* change owner */
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CMDFUNC(chgroup); /* Change group */
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CMDFUNC(back); /* pop back to last ino */
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CMDFUNC(chbtime); /* Change btime */
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CMDFUNC(chmtime); /* Change mtime */
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CMDFUNC(chctime); /* Change ctime */
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CMDFUNC(chatime); /* Change atime */
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CMDFUNC(chinum); /* Change inode # of dirent */
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CMDFUNC(chname); /* Change dirname of dirent */
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CMDFUNC(chsize); /* Change size */
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CMDFUNC(chdb); /* Change direct block pointer */
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struct cmdtable cmds[] = {
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{ "help", "Print out help", 1, 1, FL_RO, helpfn },
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{ "?", "Print out help", 1, 1, FL_RO, helpfn },
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{ "inode", "Set active inode to INUM", 2, 2, FL_RO, focus },
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{ "clri", "Clear inode INUM", 2, 2, FL_CWR, zapi },
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{ "lookup", "Set active inode by looking up NAME", 2, 2, FL_RO | FL_ST, focusname },
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{ "cd", "Set active inode by looking up NAME", 2, 2, FL_RO | FL_ST, focusname },
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{ "back", "Go to previous active inode", 1, 1, FL_RO, back },
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{ "active", "Print active inode", 1, 1, FL_RO, active },
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{ "print", "Print active inode", 1, 1, FL_RO, active },
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{ "blocks", "Print block numbers of active inode", 1, 1, FL_RO, blocks },
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{ "uplink", "Increment link count", 1, 1, FL_CWR, uplink },
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{ "downlink", "Decrement link count", 1, 1, FL_CWR, downlink },
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{ "linkcount", "Set link count to COUNT", 2, 2, FL_CWR, linkcount },
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{ "findblk", "Find inode owning disk block(s)", 2, 33, FL_RO, findblk},
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{ "ls", "List current inode as directory", 1, 1, FL_RO, ls },
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{ "rm", "Remove NAME from current inode directory", 2, 2, FL_CWR | FL_ST, rm },
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{ "del", "Remove NAME from current inode directory", 2, 2, FL_CWR | FL_ST, rm },
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{ "ln", "Hardlink INO into current inode directory as NAME", 3, 3, FL_CWR | FL_ST, ln },
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{ "chinum", "Change dir entry number INDEX to INUM", 3, 3, FL_CWR, chinum },
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{ "chname", "Change dir entry number INDEX to NAME", 3, 3, FL_WR | FL_ST, chname },
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{ "chtype", "Change type of current inode to TYPE", 2, 2, FL_CWR, newtype },
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{ "chmod", "Change mode of current inode to MODE", 2, 2, FL_WR, chmode },
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{ "chown", "Change owner of current inode to OWNER", 2, 2, FL_WR, chowner },
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{ "chgrp", "Change group of current inode to GROUP", 2, 2, FL_WR, chgroup },
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{ "chflags", "Change flags of current inode to FLAGS", 2, 2, FL_CWR, chaflags },
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{ "chgen", "Change generation number of current inode to GEN", 2, 2, FL_WR, chgen },
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{ "chsize", "Change size of current inode to SIZE", 2, 2, FL_CWR, chsize },
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{ "btime", "Change btime of current inode to BTIME", 2, 2, FL_WR, chbtime },
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{ "mtime", "Change mtime of current inode to MTIME", 2, 2, FL_WR, chmtime },
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{ "ctime", "Change ctime of current inode to CTIME", 2, 2, FL_WR, chctime },
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{ "atime", "Change atime of current inode to ATIME", 2, 2, FL_WR, chatime },
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{ "chdb", "Change db pointer N of current inode to BLKNO", 3, 3, FL_CWR, chdb },
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{ "quitclean", "Exit with filesystem marked clean", 1, 1, FL_RO, quitclean },
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{ "quit", "Exit", 1, 1, FL_RO, quit },
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{ "q", "Exit", 1, 1, FL_RO, quit },
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{ "exit", "Exit", 1, 1, FL_RO, quit },
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{ NULL, 0, 0, 0, 0, NULL },
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};
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int
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helpfn(int argc, char *argv[])
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{
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struct cmdtable *cmdtp;
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printf("Commands are:\n%-10s %5s %5s %s\n",
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"command", "min args", "max args", "what");
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for (cmdtp = cmds; cmdtp->cmd; cmdtp++)
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printf("%-10s %5u %5u %s\n",
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cmdtp->cmd, cmdtp->minargc-1, cmdtp->maxargc-1, cmdtp->helptxt);
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return 0;
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}
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char *
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prompt(EditLine *el)
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{
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static char pstring[64];
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snprintf(pstring, sizeof(pstring), "fsdb (inum: %ju)> ",
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(uintmax_t)curinum);
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return pstring;
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}
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static void
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setcurinode(ino_t inum)
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{
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if (curip.i_number != 0)
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irelse(&curip);
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ginode(inum, &curip);
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curinode = curip.i_dp;
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curinum = inum;
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}
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int
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cmdloop(void)
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{
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char *line;
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const char *elline;
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int cmd_argc, rval = 0, known;
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#define scratch known
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char **cmd_argv;
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struct cmdtable *cmdp;
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History *hist;
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EditLine *elptr;
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HistEvent he;
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setcurinode(UFS_ROOTINO);
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printactive(0);
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hist = history_init();
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history(hist, &he, H_SETSIZE, 100); /* 100 elt history buffer */
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elptr = el_init("fsdb", stdin, stdout, stderr);
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el_set(elptr, EL_EDITOR, "emacs");
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el_set(elptr, EL_PROMPT, prompt);
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el_set(elptr, EL_HIST, history, hist);
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el_source(elptr, NULL);
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while ((elline = el_gets(elptr, &scratch)) != NULL && scratch != 0) {
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if (debug)
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printf("command `%s'\n", elline);
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history(hist, &he, H_ENTER, elline);
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line = strdup(elline);
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cmd_argv = crack(line, &cmd_argc);
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/*
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* el_parse returns -1 to signal that it's not been handled
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* internally.
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*/
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if (el_parse(elptr, cmd_argc, (const char **)cmd_argv) != -1)
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continue;
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if (cmd_argc) {
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known = 0;
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for (cmdp = cmds; cmdp->cmd; cmdp++) {
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if (!strcmp(cmdp->cmd, cmd_argv[0])) {
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if ((cmdp->flags & (FL_CWR | FL_WR)) != 0 && nflag)
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warnx("`%s' requires write access", cmd_argv[0]),
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rval = 1;
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else if (cmd_argc >= cmdp->minargc &&
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cmd_argc <= cmdp->maxargc)
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rval = (*cmdp->handler)(cmd_argc, cmd_argv);
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else if (cmd_argc >= cmdp->minargc &&
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(cmdp->flags & FL_ST) == FL_ST) {
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strcpy(line, elline);
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cmd_argv = recrack(line, &cmd_argc, cmdp->maxargc);
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rval = (*cmdp->handler)(cmd_argc, cmd_argv);
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} else
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rval = argcount(cmdp, cmd_argc, cmd_argv);
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known = 1;
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if (rval == 0) {
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if ((cmdp->flags & FL_WR) != 0)
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fsnoncritmodified = 1;
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if ((cmdp->flags & FL_CWR) != 0)
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fscritmodified = 1;
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}
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break;
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}
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}
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if (!known)
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warnx("unknown command `%s'", cmd_argv[0]), rval = 1;
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} else
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rval = 0;
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free(line);
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if (rval < 0) {
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/* user typed "quit" */
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irelse(&curip);
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return 0;
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}
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if (rval)
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warnx("command failed, return value was %d", rval);
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}
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el_end(elptr);
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history_end(hist);
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irelse(&curip);
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return rval;
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}
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#define GETINUM(ac,inum) inum = strtoul(argv[ac], &cp, 0); \
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if (inum < UFS_ROOTINO || inum > maxino || cp == argv[ac] || *cp != '\0' ) { \
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printf("inode %ju out of range; range is [%ju,%ju]\n", \
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(uintmax_t)inum, (uintmax_t)UFS_ROOTINO, (uintmax_t)maxino);\
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return 1; \
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}
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/*
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* Focus on given inode number
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*/
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CMDFUNCSTART(focus)
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{
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ino_t inum;
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char *cp;
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GETINUM(1,inum);
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ocurrent = curinum;
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setcurinode(inum);
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printactive(0);
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return 0;
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}
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CMDFUNCSTART(back)
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{
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setcurinode(ocurrent);
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printactive(0);
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return 0;
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}
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CMDFUNCSTART(zapi)
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{
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struct inode ip;
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ino_t inum;
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char *cp;
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GETINUM(1,inum);
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ginode(inum, &ip);
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clearinode(ip.i_dp);
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inodirty(&ip);
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irelse(&ip);
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return 0;
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}
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CMDFUNCSTART(active)
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{
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printactive(0);
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return 0;
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}
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CMDFUNCSTART(blocks)
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{
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printactive(1);
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return 0;
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}
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CMDFUNCSTART(quit)
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{
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return -1;
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}
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CMDFUNCSTART(quitclean)
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{
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if (fscritmodified) {
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printf("Warning: modified filesystem marked clean\n");
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fscritmodified = 0;
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sblock.fs_clean = 1;
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}
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return -1;
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}
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CMDFUNCSTART(uplink)
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{
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if (!checkactive())
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return 1;
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DIP_SET(curinode, di_nlink, DIP(curinode, di_nlink) + 1);
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printf("inode %ju link count now %d\n",
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(uintmax_t)curinum, DIP(curinode, di_nlink));
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inodirty(&curip);
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return 0;
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}
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CMDFUNCSTART(downlink)
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{
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if (!checkactive())
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return 1;
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DIP_SET(curinode, di_nlink, DIP(curinode, di_nlink) - 1);
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printf("inode %ju link count now %d\n",
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(uintmax_t)curinum, DIP(curinode, di_nlink));
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inodirty(&curip);
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return 0;
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}
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const char *typename[] = {
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"unknown",
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"fifo",
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"char special",
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"unregistered #3",
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"directory",
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"unregistered #5",
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"blk special",
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"unregistered #7",
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"regular",
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"unregistered #9",
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"symlink",
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"unregistered #11",
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"socket",
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"unregistered #13",
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"whiteout",
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};
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int diroff;
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int slot;
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int
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scannames(struct inodesc *idesc)
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{
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struct direct *dirp = idesc->id_dirp;
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printf("slot %d off %d ino %d reclen %d: %s, `%.*s'\n",
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slot++, diroff, dirp->d_ino, dirp->d_reclen,
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typename[dirp->d_type], dirp->d_namlen, dirp->d_name);
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diroff += dirp->d_reclen;
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return (KEEPON);
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}
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CMDFUNCSTART(ls)
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{
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struct inodesc idesc;
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checkactivedir(); /* let it go on anyway */
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slot = 0;
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diroff = 0;
|
|
idesc.id_number = curinum;
|
|
idesc.id_func = scannames;
|
|
idesc.id_type = DATA;
|
|
idesc.id_fix = IGNORE;
|
|
ckinode(curinode, &idesc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int findblk_numtofind;
|
|
static int wantedblksize;
|
|
|
|
CMDFUNCSTART(findblk)
|
|
{
|
|
ino_t inum, inosused;
|
|
uint32_t *wantedblk32;
|
|
uint64_t *wantedblk64;
|
|
struct bufarea *cgbp;
|
|
struct cg *cgp;
|
|
int c, i, is_ufs2;
|
|
|
|
wantedblksize = (argc - 1);
|
|
is_ufs2 = sblock.fs_magic == FS_UFS2_MAGIC;
|
|
ocurrent = curinum;
|
|
|
|
if (is_ufs2) {
|
|
wantedblk64 = calloc(wantedblksize, sizeof(uint64_t));
|
|
if (wantedblk64 == NULL)
|
|
err(1, "malloc");
|
|
for (i = 1; i < argc; i++)
|
|
wantedblk64[i - 1] = dbtofsb(&sblock, strtoull(argv[i], NULL, 0));
|
|
} else {
|
|
wantedblk32 = calloc(wantedblksize, sizeof(uint32_t));
|
|
if (wantedblk32 == NULL)
|
|
err(1, "malloc");
|
|
for (i = 1; i < argc; i++)
|
|
wantedblk32[i - 1] = dbtofsb(&sblock, strtoull(argv[i], NULL, 0));
|
|
}
|
|
findblk_numtofind = wantedblksize;
|
|
/*
|
|
* sblock.fs_ncg holds a number of cylinder groups.
|
|
* Iterate over all cylinder groups.
|
|
*/
|
|
for (c = 0; c < sblock.fs_ncg; c++) {
|
|
/*
|
|
* sblock.fs_ipg holds a number of inodes per cylinder group.
|
|
* Calculate a highest inode number for a given cylinder group.
|
|
*/
|
|
inum = c * sblock.fs_ipg;
|
|
/* Read cylinder group. */
|
|
cgbp = cglookup(c);
|
|
cgp = cgbp->b_un.b_cg;
|
|
/*
|
|
* Get a highest used inode number for a given cylinder group.
|
|
* For UFS1 all inodes initialized at the newfs stage.
|
|
*/
|
|
if (is_ufs2)
|
|
inosused = cgp->cg_initediblk;
|
|
else
|
|
inosused = sblock.fs_ipg;
|
|
|
|
for (; inosused > 0; inum++, inosused--) {
|
|
/* Skip magic inodes: 0, UFS_WINO, UFS_ROOTINO. */
|
|
if (inum < UFS_ROOTINO)
|
|
continue;
|
|
/*
|
|
* Check if the block we are looking for is just an inode block.
|
|
*
|
|
* ino_to_fsba() - get block containing inode from its number.
|
|
* INOPB() - get a number of inodes in one disk block.
|
|
*/
|
|
if (is_ufs2 ?
|
|
compare_blk64(wantedblk64, ino_to_fsba(&sblock, inum)) :
|
|
compare_blk32(wantedblk32, ino_to_fsba(&sblock, inum))) {
|
|
printf("block %llu: inode block (%ju-%ju)\n",
|
|
(unsigned long long)fsbtodb(&sblock,
|
|
ino_to_fsba(&sblock, inum)),
|
|
(uintmax_t)(inum / INOPB(&sblock)) * INOPB(&sblock),
|
|
(uintmax_t)(inum / INOPB(&sblock) + 1) * INOPB(&sblock));
|
|
findblk_numtofind--;
|
|
if (findblk_numtofind == 0)
|
|
goto end;
|
|
}
|
|
/* Get on-disk inode aka dinode. */
|
|
setcurinode(inum);
|
|
/* Find IFLNK dinode with allocated data blocks. */
|
|
switch (DIP(curinode, di_mode) & IFMT) {
|
|
case IFDIR:
|
|
case IFREG:
|
|
if (DIP(curinode, di_blocks) == 0)
|
|
continue;
|
|
break;
|
|
case IFLNK:
|
|
{
|
|
uint64_t size = DIP(curinode, di_size);
|
|
if (size > 0 && size < sblock.fs_maxsymlinklen &&
|
|
DIP(curinode, di_blocks) == 0)
|
|
continue;
|
|
else
|
|
break;
|
|
}
|
|
default:
|
|
continue;
|
|
}
|
|
/* Look through direct data blocks. */
|
|
if (is_ufs2 ?
|
|
find_blks64(curinode->dp2.di_db, UFS_NDADDR, wantedblk64) :
|
|
find_blks32(curinode->dp1.di_db, UFS_NDADDR, wantedblk32))
|
|
goto end;
|
|
for (i = 0; i < UFS_NIADDR; i++) {
|
|
/*
|
|
* Does the block we are looking for belongs to the
|
|
* indirect blocks?
|
|
*/
|
|
if (is_ufs2 ?
|
|
compare_blk64(wantedblk64, curinode->dp2.di_ib[i]) :
|
|
compare_blk32(wantedblk32, curinode->dp1.di_ib[i]))
|
|
if (founddatablk(is_ufs2 ? curinode->dp2.di_ib[i] :
|
|
curinode->dp1.di_ib[i]))
|
|
goto end;
|
|
/*
|
|
* Search through indirect, double and triple indirect
|
|
* data blocks.
|
|
*/
|
|
if (is_ufs2 ? (curinode->dp2.di_ib[i] != 0) :
|
|
(curinode->dp1.di_ib[i] != 0))
|
|
if (is_ufs2 ?
|
|
find_indirblks64(curinode->dp2.di_ib[i], i,
|
|
wantedblk64) :
|
|
find_indirblks32(curinode->dp1.di_ib[i], i,
|
|
wantedblk32))
|
|
goto end;
|
|
}
|
|
}
|
|
}
|
|
end:
|
|
setcurinode(ocurrent);
|
|
if (is_ufs2)
|
|
free(wantedblk64);
|
|
else
|
|
free(wantedblk32);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
compare_blk32(uint32_t *wantedblk, uint32_t curblk)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < wantedblksize; i++) {
|
|
if (wantedblk[i] != 0 && wantedblk[i] == curblk) {
|
|
wantedblk[i] = 0;
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
compare_blk64(uint64_t *wantedblk, uint64_t curblk)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < wantedblksize; i++) {
|
|
if (wantedblk[i] != 0 && wantedblk[i] == curblk) {
|
|
wantedblk[i] = 0;
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
founddatablk(uint64_t blk)
|
|
{
|
|
|
|
printf("%llu: data block of inode %ju\n",
|
|
(unsigned long long)fsbtodb(&sblock, blk), (uintmax_t)curinum);
|
|
findblk_numtofind--;
|
|
if (findblk_numtofind == 0)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
find_blks32(uint32_t *buf, int size, uint32_t *wantedblk)
|
|
{
|
|
int blk;
|
|
for (blk = 0; blk < size; blk++) {
|
|
if (buf[blk] == 0)
|
|
continue;
|
|
if (compare_blk32(wantedblk, buf[blk])) {
|
|
if (founddatablk(buf[blk]))
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
find_indirblks32(uint32_t blk, int ind_level, uint32_t *wantedblk)
|
|
{
|
|
#define MAXNINDIR (MAXBSIZE / sizeof(uint32_t))
|
|
uint32_t idblk[MAXNINDIR];
|
|
int i;
|
|
|
|
blread(fsreadfd, (char *)idblk, fsbtodb(&sblock, blk), (int)sblock.fs_bsize);
|
|
if (ind_level <= 0) {
|
|
if (find_blks32(idblk, sblock.fs_bsize / sizeof(uint32_t), wantedblk))
|
|
return 1;
|
|
} else {
|
|
ind_level--;
|
|
for (i = 0; i < sblock.fs_bsize / sizeof(uint32_t); i++) {
|
|
if (compare_blk32(wantedblk, idblk[i])) {
|
|
if (founddatablk(idblk[i]))
|
|
return 1;
|
|
}
|
|
if (idblk[i] != 0)
|
|
if (find_indirblks32(idblk[i], ind_level, wantedblk))
|
|
return 1;
|
|
}
|
|
}
|
|
#undef MAXNINDIR
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
find_blks64(uint64_t *buf, int size, uint64_t *wantedblk)
|
|
{
|
|
int blk;
|
|
for (blk = 0; blk < size; blk++) {
|
|
if (buf[blk] == 0)
|
|
continue;
|
|
if (compare_blk64(wantedblk, buf[blk])) {
|
|
if (founddatablk(buf[blk]))
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
find_indirblks64(uint64_t blk, int ind_level, uint64_t *wantedblk)
|
|
{
|
|
#define MAXNINDIR (MAXBSIZE / sizeof(uint64_t))
|
|
uint64_t idblk[MAXNINDIR];
|
|
int i;
|
|
|
|
blread(fsreadfd, (char *)idblk, fsbtodb(&sblock, blk), (int)sblock.fs_bsize);
|
|
if (ind_level <= 0) {
|
|
if (find_blks64(idblk, sblock.fs_bsize / sizeof(uint64_t), wantedblk))
|
|
return 1;
|
|
} else {
|
|
ind_level--;
|
|
for (i = 0; i < sblock.fs_bsize / sizeof(uint64_t); i++) {
|
|
if (compare_blk64(wantedblk, idblk[i])) {
|
|
if (founddatablk(idblk[i]))
|
|
return 1;
|
|
}
|
|
if (idblk[i] != 0)
|
|
if (find_indirblks64(idblk[i], ind_level, wantedblk))
|
|
return 1;
|
|
}
|
|
}
|
|
#undef MAXNINDIR
|
|
return 0;
|
|
}
|
|
|
|
int findino(struct inodesc *idesc); /* from fsck */
|
|
static int dolookup(char *name);
|
|
|
|
static int
|
|
dolookup(char *name)
|
|
{
|
|
struct inodesc idesc;
|
|
|
|
if (!checkactivedir())
|
|
return 0;
|
|
idesc.id_number = curinum;
|
|
idesc.id_func = findino;
|
|
idesc.id_name = name;
|
|
idesc.id_type = DATA;
|
|
idesc.id_fix = IGNORE;
|
|
if (ckinode(curinode, &idesc) & FOUND) {
|
|
setcurinode(idesc.id_parent);
|
|
printactive(0);
|
|
return 1;
|
|
} else {
|
|
warnx("name `%s' not found in current inode directory", name);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
CMDFUNCSTART(focusname)
|
|
{
|
|
char *p, *val;
|
|
|
|
if (!checkactive())
|
|
return 1;
|
|
|
|
ocurrent = curinum;
|
|
|
|
if (argv[1][0] == '/') {
|
|
setcurinode(UFS_ROOTINO);
|
|
} else {
|
|
if (!checkactivedir())
|
|
return 1;
|
|
}
|
|
for (p = argv[1]; p != NULL;) {
|
|
while ((val = strsep(&p, "/")) != NULL && *val == '\0');
|
|
if (val) {
|
|
printf("component `%s': ", val);
|
|
fflush(stdout);
|
|
if (!dolookup(val)) {
|
|
return(1);
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(ln)
|
|
{
|
|
ino_t inum;
|
|
int rval;
|
|
char *cp;
|
|
|
|
GETINUM(1,inum);
|
|
|
|
if (!checkactivedir())
|
|
return 1;
|
|
rval = makeentry(curinum, inum, argv[2]);
|
|
if (rval)
|
|
printf("Ino %ju entered as `%s'\n", (uintmax_t)inum, argv[2]);
|
|
else
|
|
printf("could not enter name? weird.\n");
|
|
return rval;
|
|
}
|
|
|
|
CMDFUNCSTART(rm)
|
|
{
|
|
int rval;
|
|
|
|
if (!checkactivedir())
|
|
return 1;
|
|
rval = changeino(curinum, argv[1], 0, 0);
|
|
if (rval & ALTERED) {
|
|
printf("Name `%s' removed\n", argv[1]);
|
|
return 0;
|
|
} else {
|
|
printf("could not remove name ('%s')? weird.\n", argv[1]);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
long slotcount, desired;
|
|
|
|
int
|
|
chinumfunc(struct inodesc *idesc)
|
|
{
|
|
struct direct *dirp = idesc->id_dirp;
|
|
|
|
if (slotcount++ == desired) {
|
|
dirp->d_ino = idesc->id_parent;
|
|
return STOP|ALTERED|FOUND;
|
|
}
|
|
return KEEPON;
|
|
}
|
|
|
|
CMDFUNCSTART(chinum)
|
|
{
|
|
char *cp;
|
|
ino_t inum;
|
|
struct inodesc idesc;
|
|
|
|
slotcount = 0;
|
|
if (!checkactivedir())
|
|
return 1;
|
|
GETINUM(2,inum);
|
|
|
|
desired = strtol(argv[1], &cp, 0);
|
|
if (cp == argv[1] || *cp != '\0' || desired < 0) {
|
|
printf("invalid slot number `%s'\n", argv[1]);
|
|
return 1;
|
|
}
|
|
|
|
idesc.id_number = curinum;
|
|
idesc.id_func = chinumfunc;
|
|
idesc.id_fix = IGNORE;
|
|
idesc.id_type = DATA;
|
|
idesc.id_parent = inum; /* XXX convenient hiding place */
|
|
|
|
if (ckinode(curinode, &idesc) & FOUND)
|
|
return 0;
|
|
else {
|
|
warnx("no %sth slot in current directory", argv[1]);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
int
|
|
chnamefunc(struct inodesc *idesc)
|
|
{
|
|
struct direct *dirp = idesc->id_dirp;
|
|
struct direct testdir;
|
|
|
|
if (slotcount++ == desired) {
|
|
/* will name fit? */
|
|
testdir.d_namlen = strlen(idesc->id_name);
|
|
if (DIRSIZ(NEWDIRFMT, &testdir) <= dirp->d_reclen) {
|
|
dirp->d_namlen = testdir.d_namlen;
|
|
strcpy(dirp->d_name, idesc->id_name);
|
|
return STOP|ALTERED|FOUND;
|
|
} else
|
|
return STOP|FOUND; /* won't fit, so give up */
|
|
}
|
|
return KEEPON;
|
|
}
|
|
|
|
CMDFUNCSTART(chname)
|
|
{
|
|
int rval;
|
|
char *cp;
|
|
struct inodesc idesc;
|
|
|
|
slotcount = 0;
|
|
if (!checkactivedir())
|
|
return 1;
|
|
|
|
desired = strtoul(argv[1], &cp, 0);
|
|
if (cp == argv[1] || *cp != '\0') {
|
|
printf("invalid slot number `%s'\n", argv[1]);
|
|
return 1;
|
|
}
|
|
|
|
idesc.id_number = curinum;
|
|
idesc.id_func = chnamefunc;
|
|
idesc.id_fix = IGNORE;
|
|
idesc.id_type = DATA;
|
|
idesc.id_name = argv[2];
|
|
|
|
rval = ckinode(curinode, &idesc);
|
|
if ((rval & (FOUND|ALTERED)) == (FOUND|ALTERED))
|
|
return 0;
|
|
else if (rval & FOUND) {
|
|
warnx("new name `%s' does not fit in slot %s\n", argv[2], argv[1]);
|
|
return 1;
|
|
} else {
|
|
warnx("no %sth slot in current directory", argv[1]);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
struct typemap {
|
|
const char *typename;
|
|
int typebits;
|
|
} typenamemap[] = {
|
|
{"file", IFREG},
|
|
{"dir", IFDIR},
|
|
{"socket", IFSOCK},
|
|
{"fifo", IFIFO},
|
|
};
|
|
|
|
CMDFUNCSTART(newtype)
|
|
{
|
|
int type;
|
|
struct typemap *tp;
|
|
|
|
if (!checkactive())
|
|
return 1;
|
|
type = DIP(curinode, di_mode) & IFMT;
|
|
for (tp = typenamemap;
|
|
tp < &typenamemap[nitems(typenamemap)];
|
|
tp++) {
|
|
if (!strcmp(argv[1], tp->typename)) {
|
|
printf("setting type to %s\n", tp->typename);
|
|
type = tp->typebits;
|
|
break;
|
|
}
|
|
}
|
|
if (tp == &typenamemap[nitems(typenamemap)]) {
|
|
warnx("type `%s' not known", argv[1]);
|
|
warnx("try one of `file', `dir', `socket', `fifo'");
|
|
return 1;
|
|
}
|
|
DIP_SET(curinode, di_mode, DIP(curinode, di_mode) & ~IFMT);
|
|
DIP_SET(curinode, di_mode, DIP(curinode, di_mode) | type);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(chmode)
|
|
{
|
|
long modebits;
|
|
char *cp;
|
|
|
|
if (!checkactive())
|
|
return 1;
|
|
|
|
modebits = strtol(argv[1], &cp, 8);
|
|
if (cp == argv[1] || *cp != '\0' || (modebits & ~07777)) {
|
|
warnx("bad modebits `%s'", argv[1]);
|
|
return 1;
|
|
}
|
|
|
|
DIP_SET(curinode, di_mode, DIP(curinode, di_mode) & ~07777);
|
|
DIP_SET(curinode, di_mode, DIP(curinode, di_mode) | modebits);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(chaflags)
|
|
{
|
|
u_long flags;
|
|
char *cp;
|
|
|
|
if (!checkactive())
|
|
return 1;
|
|
|
|
flags = strtoul(argv[1], &cp, 0);
|
|
if (cp == argv[1] || *cp != '\0' ) {
|
|
warnx("bad flags `%s'", argv[1]);
|
|
return 1;
|
|
}
|
|
|
|
if (flags > UINT_MAX) {
|
|
warnx("flags set beyond 32-bit range of field (%lx)\n", flags);
|
|
return(1);
|
|
}
|
|
DIP_SET(curinode, di_flags, flags);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(chgen)
|
|
{
|
|
long gen;
|
|
char *cp;
|
|
|
|
if (!checkactive())
|
|
return 1;
|
|
|
|
gen = strtol(argv[1], &cp, 0);
|
|
if (cp == argv[1] || *cp != '\0' ) {
|
|
warnx("bad gen `%s'", argv[1]);
|
|
return 1;
|
|
}
|
|
|
|
if (gen > UINT_MAX) {
|
|
warnx("gen set beyond 32-bit range of field (0x%lx), max is 0x%x\n",
|
|
gen, UINT_MAX);
|
|
return(1);
|
|
}
|
|
DIP_SET(curinode, di_gen, gen);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(chsize)
|
|
{
|
|
off_t size;
|
|
char *cp;
|
|
|
|
if (!checkactive())
|
|
return 1;
|
|
|
|
size = strtoll(argv[1], &cp, 0);
|
|
if (cp == argv[1] || *cp != '\0') {
|
|
warnx("bad size `%s'", argv[1]);
|
|
return 1;
|
|
}
|
|
|
|
if (size < 0) {
|
|
warnx("size set to negative (%jd)\n", (intmax_t)size);
|
|
return(1);
|
|
}
|
|
DIP_SET(curinode, di_size, size);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNC(chdb)
|
|
{
|
|
unsigned int idx;
|
|
daddr_t bno;
|
|
char *cp;
|
|
|
|
if (!checkactive())
|
|
return 1;
|
|
|
|
idx = strtoull(argv[1], &cp, 0);
|
|
if (cp == argv[1] || *cp != '\0') {
|
|
warnx("bad pointer idx `%s'", argv[1]);
|
|
return 1;
|
|
}
|
|
bno = strtoll(argv[2], &cp, 0);
|
|
if (cp == argv[2] || *cp != '\0') {
|
|
warnx("bad block number `%s'", argv[2]);
|
|
return 1;
|
|
}
|
|
if (idx >= UFS_NDADDR) {
|
|
warnx("pointer index %d is out of range", idx);
|
|
return 1;
|
|
}
|
|
|
|
DIP_SET(curinode, di_db[idx], bno);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(linkcount)
|
|
{
|
|
int lcnt;
|
|
char *cp;
|
|
|
|
if (!checkactive())
|
|
return 1;
|
|
|
|
lcnt = strtol(argv[1], &cp, 0);
|
|
if (cp == argv[1] || *cp != '\0' ) {
|
|
warnx("bad link count `%s'", argv[1]);
|
|
return 1;
|
|
}
|
|
if (lcnt > USHRT_MAX || lcnt < 0) {
|
|
warnx("max link count is %d\n", USHRT_MAX);
|
|
return 1;
|
|
}
|
|
|
|
DIP_SET(curinode, di_nlink, lcnt);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(chowner)
|
|
{
|
|
unsigned long uid;
|
|
char *cp;
|
|
struct passwd *pwd;
|
|
|
|
if (!checkactive())
|
|
return 1;
|
|
|
|
uid = strtoul(argv[1], &cp, 0);
|
|
if (cp == argv[1] || *cp != '\0' ) {
|
|
/* try looking up name */
|
|
if ((pwd = getpwnam(argv[1]))) {
|
|
uid = pwd->pw_uid;
|
|
} else {
|
|
warnx("bad uid `%s'", argv[1]);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
DIP_SET(curinode, di_uid, uid);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(chgroup)
|
|
{
|
|
unsigned long gid;
|
|
char *cp;
|
|
struct group *grp;
|
|
|
|
if (!checkactive())
|
|
return 1;
|
|
|
|
gid = strtoul(argv[1], &cp, 0);
|
|
if (cp == argv[1] || *cp != '\0' ) {
|
|
if ((grp = getgrnam(argv[1]))) {
|
|
gid = grp->gr_gid;
|
|
} else {
|
|
warnx("bad gid `%s'", argv[1]);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
DIP_SET(curinode, di_gid, gid);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
dotime(char *name, time_t *secp, int32_t *nsecp)
|
|
{
|
|
char *p, *val;
|
|
struct tm t;
|
|
int32_t nsec;
|
|
p = strchr(name, '.');
|
|
if (p) {
|
|
*p = '\0';
|
|
nsec = strtoul(++p, &val, 0);
|
|
if (val == p || *val != '\0' || nsec >= 1000000000 || nsec < 0) {
|
|
warnx("invalid nanoseconds");
|
|
goto badformat;
|
|
}
|
|
} else
|
|
nsec = 0;
|
|
if (strlen(name) != 14) {
|
|
badformat:
|
|
warnx("date format: YYYYMMDDHHMMSS[.nsec]");
|
|
return 1;
|
|
}
|
|
*nsecp = nsec;
|
|
|
|
for (p = name; *p; p++)
|
|
if (*p < '0' || *p > '9')
|
|
goto badformat;
|
|
|
|
p = name;
|
|
#define VAL() ((*p++) - '0')
|
|
t.tm_year = VAL();
|
|
t.tm_year = VAL() + t.tm_year * 10;
|
|
t.tm_year = VAL() + t.tm_year * 10;
|
|
t.tm_year = VAL() + t.tm_year * 10 - 1900;
|
|
t.tm_mon = VAL();
|
|
t.tm_mon = VAL() + t.tm_mon * 10 - 1;
|
|
t.tm_mday = VAL();
|
|
t.tm_mday = VAL() + t.tm_mday * 10;
|
|
t.tm_hour = VAL();
|
|
t.tm_hour = VAL() + t.tm_hour * 10;
|
|
t.tm_min = VAL();
|
|
t.tm_min = VAL() + t.tm_min * 10;
|
|
t.tm_sec = VAL();
|
|
t.tm_sec = VAL() + t.tm_sec * 10;
|
|
t.tm_isdst = -1;
|
|
|
|
*secp = mktime(&t);
|
|
if (*secp == -1) {
|
|
warnx("date/time out of range");
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(chbtime)
|
|
{
|
|
time_t secs;
|
|
int32_t nsecs;
|
|
|
|
if (dotime(argv[1], &secs, &nsecs))
|
|
return 1;
|
|
if (sblock.fs_magic == FS_UFS1_MAGIC)
|
|
return 1;
|
|
curinode->dp2.di_birthtime = _time_to_time64(secs);
|
|
curinode->dp2.di_birthnsec = nsecs;
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(chmtime)
|
|
{
|
|
time_t secs;
|
|
int32_t nsecs;
|
|
|
|
if (dotime(argv[1], &secs, &nsecs))
|
|
return 1;
|
|
if (sblock.fs_magic == FS_UFS1_MAGIC)
|
|
curinode->dp1.di_mtime = _time_to_time32(secs);
|
|
else
|
|
curinode->dp2.di_mtime = _time_to_time64(secs);
|
|
DIP_SET(curinode, di_mtimensec, nsecs);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(chatime)
|
|
{
|
|
time_t secs;
|
|
int32_t nsecs;
|
|
|
|
if (dotime(argv[1], &secs, &nsecs))
|
|
return 1;
|
|
if (sblock.fs_magic == FS_UFS1_MAGIC)
|
|
curinode->dp1.di_atime = _time_to_time32(secs);
|
|
else
|
|
curinode->dp2.di_atime = _time_to_time64(secs);
|
|
DIP_SET(curinode, di_atimensec, nsecs);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return 0;
|
|
}
|
|
|
|
CMDFUNCSTART(chctime)
|
|
{
|
|
time_t secs;
|
|
int32_t nsecs;
|
|
|
|
if (dotime(argv[1], &secs, &nsecs))
|
|
return 1;
|
|
if (sblock.fs_magic == FS_UFS1_MAGIC)
|
|
curinode->dp1.di_ctime = _time_to_time32(secs);
|
|
else
|
|
curinode->dp2.di_ctime = _time_to_time64(secs);
|
|
DIP_SET(curinode, di_ctimensec, nsecs);
|
|
inodirty(&curip);
|
|
printactive(0);
|
|
return 0;
|
|
}
|