667 lines
19 KiB
C
667 lines
19 KiB
C
/*
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* Copyright (c) 1980, 1986, 1993
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* The Regents of the University of California. 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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* 4. 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 sccsid[] = "@(#)pass2.c 8.9 (Berkeley) 4/28/95";
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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/sysctl.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 <err.h>
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#include <errno.h>
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#include <stdint.h>
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#include <string.h>
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#include "fsck.h"
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#define MINDIRSIZE (sizeof (struct dirtemplate))
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static int fix_extraneous(struct inoinfo *, struct inodesc *);
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static int deleteentry(struct inodesc *);
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static int blksort(const void *, const void *);
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static int pass2check(struct inodesc *);
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void
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pass2(void)
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{
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union dinode *dp;
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struct inoinfo **inpp, *inp;
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struct inoinfo **inpend;
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struct inodesc curino;
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union dinode dino;
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int i;
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char pathbuf[MAXPATHLEN + 1];
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switch (inoinfo(ROOTINO)->ino_state) {
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case USTATE:
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pfatal("ROOT INODE UNALLOCATED");
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if (reply("ALLOCATE") == 0) {
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ckfini(0);
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exit(EEXIT);
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}
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if (allocdir(ROOTINO, ROOTINO, 0755) != ROOTINO)
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errx(EEXIT, "CANNOT ALLOCATE ROOT INODE");
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break;
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case DCLEAR:
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pfatal("DUPS/BAD IN ROOT INODE");
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if (reply("REALLOCATE")) {
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freeino(ROOTINO);
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if (allocdir(ROOTINO, ROOTINO, 0755) != ROOTINO)
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errx(EEXIT, "CANNOT ALLOCATE ROOT INODE");
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break;
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}
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if (reply("CONTINUE") == 0) {
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ckfini(0);
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exit(EEXIT);
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}
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break;
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case FSTATE:
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case FCLEAR:
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case FZLINK:
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pfatal("ROOT INODE NOT DIRECTORY");
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if (reply("REALLOCATE")) {
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freeino(ROOTINO);
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if (allocdir(ROOTINO, ROOTINO, 0755) != ROOTINO)
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errx(EEXIT, "CANNOT ALLOCATE ROOT INODE");
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break;
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}
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if (reply("FIX") == 0) {
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ckfini(0);
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exit(EEXIT);
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}
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dp = ginode(ROOTINO);
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DIP_SET(dp, di_mode, DIP(dp, di_mode) & ~IFMT);
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DIP_SET(dp, di_mode, DIP(dp, di_mode) | IFDIR);
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inodirty();
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break;
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case DSTATE:
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case DZLINK:
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break;
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default:
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errx(EEXIT, "BAD STATE %d FOR ROOT INODE",
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inoinfo(ROOTINO)->ino_state);
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}
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inoinfo(ROOTINO)->ino_state = DFOUND;
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inoinfo(WINO)->ino_state = FSTATE;
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inoinfo(WINO)->ino_type = DT_WHT;
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/*
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* Sort the directory list into disk block order.
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*/
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qsort((char *)inpsort, (size_t)inplast, sizeof *inpsort, blksort);
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/*
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* Check the integrity of each directory.
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*/
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memset(&curino, 0, sizeof(struct inodesc));
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curino.id_type = DATA;
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curino.id_func = pass2check;
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inpend = &inpsort[inplast];
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for (inpp = inpsort; inpp < inpend; inpp++) {
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if (got_siginfo) {
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printf("%s: phase 2: dir %td of %d (%d%%)\n", cdevname,
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inpp - inpsort, (int)inplast,
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(int)((inpp - inpsort) * 100 / inplast));
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got_siginfo = 0;
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}
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if (got_sigalarm) {
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setproctitle("%s p2 %d%%", cdevname,
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(int)((inpp - inpsort) * 100 / inplast));
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got_sigalarm = 0;
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}
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inp = *inpp;
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if (inp->i_isize == 0)
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continue;
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if (inp->i_isize < MINDIRSIZE) {
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direrror(inp->i_number, "DIRECTORY TOO SHORT");
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inp->i_isize = roundup(MINDIRSIZE, DIRBLKSIZ);
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if (reply("FIX") == 1) {
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dp = ginode(inp->i_number);
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DIP_SET(dp, di_size, inp->i_isize);
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inodirty();
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}
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} else if ((inp->i_isize & (DIRBLKSIZ - 1)) != 0) {
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getpathname(pathbuf, inp->i_number, inp->i_number);
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if (usedsoftdep)
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pfatal("%s %s: LENGTH %jd NOT MULTIPLE OF %d",
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"DIRECTORY", pathbuf,
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(intmax_t)inp->i_isize, DIRBLKSIZ);
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else
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pwarn("%s %s: LENGTH %jd NOT MULTIPLE OF %d",
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"DIRECTORY", pathbuf,
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(intmax_t)inp->i_isize, DIRBLKSIZ);
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if (preen)
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printf(" (ADJUSTED)\n");
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inp->i_isize = roundup(inp->i_isize, DIRBLKSIZ);
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if (preen || reply("ADJUST") == 1) {
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dp = ginode(inp->i_number);
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DIP_SET(dp, di_size,
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roundup(inp->i_isize, DIRBLKSIZ));
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inodirty();
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}
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}
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dp = &dino;
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memset(dp, 0, sizeof(struct ufs2_dinode));
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DIP_SET(dp, di_mode, IFDIR);
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DIP_SET(dp, di_size, inp->i_isize);
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for (i = 0; i < MIN(inp->i_numblks, NDADDR); i++)
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DIP_SET(dp, di_db[i], inp->i_blks[i]);
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if (inp->i_numblks > NDADDR)
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for (i = 0; i < NIADDR; i++)
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DIP_SET(dp, di_ib[i], inp->i_blks[NDADDR + i]);
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curino.id_number = inp->i_number;
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curino.id_parent = inp->i_parent;
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(void)ckinode(dp, &curino);
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}
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/*
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* Now that the parents of all directories have been found,
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* make another pass to verify the value of `..'
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*/
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for (inpp = inpsort; inpp < inpend; inpp++) {
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inp = *inpp;
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if (inp->i_parent == 0 || inp->i_isize == 0)
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continue;
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if (inoinfo(inp->i_parent)->ino_state == DFOUND &&
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INO_IS_DUNFOUND(inp->i_number))
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inoinfo(inp->i_number)->ino_state = DFOUND;
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if (inp->i_dotdot == inp->i_parent ||
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inp->i_dotdot == (ino_t)-1)
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continue;
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if (inp->i_dotdot == 0) {
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inp->i_dotdot = inp->i_parent;
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fileerror(inp->i_parent, inp->i_number, "MISSING '..'");
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if (reply("FIX") == 0)
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continue;
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(void)makeentry(inp->i_number, inp->i_parent, "..");
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inoinfo(inp->i_parent)->ino_linkcnt--;
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continue;
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}
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/*
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* Here we have:
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* inp->i_number is directory with bad ".." in it.
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* inp->i_dotdot is current value of "..".
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* inp->i_parent is directory to which ".." should point.
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*/
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getpathname(pathbuf, inp->i_parent, inp->i_number);
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printf("BAD INODE NUMBER FOR '..' in DIR I=%ju (%s)\n",
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(uintmax_t)inp->i_number, pathbuf);
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getpathname(pathbuf, inp->i_dotdot, inp->i_dotdot);
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printf("CURRENTLY POINTS TO I=%ju (%s), ",
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(uintmax_t)inp->i_dotdot, pathbuf);
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getpathname(pathbuf, inp->i_parent, inp->i_parent);
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printf("SHOULD POINT TO I=%ju (%s)",
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(uintmax_t)inp->i_parent, pathbuf);
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if (cursnapshot != 0) {
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/*
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* We need to:
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* setcwd(inp->i_number);
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* setdotdot(inp->i_dotdot, inp->i_parent);
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*/
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cmd.value = inp->i_number;
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if (sysctlbyname("vfs.ffs.setcwd", 0, 0,
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&cmd, sizeof cmd) == -1) {
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/* kernel lacks support for these functions */
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printf(" (IGNORED)\n");
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continue;
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}
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cmd.value = inp->i_dotdot; /* verify same value */
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cmd.size = inp->i_parent; /* new parent */
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if (sysctlbyname("vfs.ffs.setdotdot", 0, 0,
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&cmd, sizeof cmd) == -1) {
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printf(" (FIX FAILED: %s)\n", strerror(errno));
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continue;
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}
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printf(" (FIXED)\n");
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inoinfo(inp->i_parent)->ino_linkcnt--;
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inp->i_dotdot = inp->i_parent;
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continue;
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}
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if (preen)
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printf(" (FIXED)\n");
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else if (reply("FIX") == 0)
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continue;
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inoinfo(inp->i_dotdot)->ino_linkcnt++;
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inoinfo(inp->i_parent)->ino_linkcnt--;
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inp->i_dotdot = inp->i_parent;
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(void)changeino(inp->i_number, "..", inp->i_parent);
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}
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/*
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* Mark all the directories that can be found from the root.
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*/
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propagate();
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}
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static int
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pass2check(struct inodesc *idesc)
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{
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struct direct *dirp = idesc->id_dirp;
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char dirname[MAXPATHLEN + 1];
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struct inoinfo *inp;
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int n, entrysize, ret = 0;
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union dinode *dp;
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const char *errmsg;
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struct direct proto;
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/*
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* check for "."
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*/
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if (dirp->d_ino > maxino)
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goto chk2;
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if (idesc->id_entryno != 0)
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goto chk1;
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if (dirp->d_ino != 0 && strcmp(dirp->d_name, ".") == 0) {
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if (dirp->d_ino != idesc->id_number) {
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direrror(idesc->id_number, "BAD INODE NUMBER FOR '.'");
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dirp->d_ino = idesc->id_number;
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if (reply("FIX") == 1)
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ret |= ALTERED;
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}
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if (dirp->d_type != DT_DIR) {
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direrror(idesc->id_number, "BAD TYPE VALUE FOR '.'");
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dirp->d_type = DT_DIR;
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if (reply("FIX") == 1)
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ret |= ALTERED;
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}
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goto chk1;
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}
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direrror(idesc->id_number, "MISSING '.'");
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proto.d_ino = idesc->id_number;
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proto.d_type = DT_DIR;
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proto.d_namlen = 1;
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(void)strcpy(proto.d_name, ".");
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entrysize = DIRSIZ(0, &proto);
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if (dirp->d_ino != 0 && strcmp(dirp->d_name, "..") != 0) {
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pfatal("CANNOT FIX, FIRST ENTRY IN DIRECTORY CONTAINS %s\n",
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dirp->d_name);
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} else if (dirp->d_reclen < entrysize) {
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pfatal("CANNOT FIX, INSUFFICIENT SPACE TO ADD '.'\n");
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} else if (dirp->d_reclen < 2 * entrysize) {
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proto.d_reclen = dirp->d_reclen;
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memmove(dirp, &proto, (size_t)entrysize);
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if (reply("FIX") == 1)
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ret |= ALTERED;
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} else {
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n = dirp->d_reclen - entrysize;
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proto.d_reclen = entrysize;
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memmove(dirp, &proto, (size_t)entrysize);
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idesc->id_entryno++;
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inoinfo(dirp->d_ino)->ino_linkcnt--;
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dirp = (struct direct *)((char *)(dirp) + entrysize);
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memset(dirp, 0, (size_t)n);
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dirp->d_reclen = n;
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if (reply("FIX") == 1)
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ret |= ALTERED;
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}
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chk1:
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if (idesc->id_entryno > 1)
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goto chk2;
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inp = getinoinfo(idesc->id_number);
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proto.d_ino = inp->i_parent;
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proto.d_type = DT_DIR;
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proto.d_namlen = 2;
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(void)strcpy(proto.d_name, "..");
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entrysize = DIRSIZ(0, &proto);
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if (idesc->id_entryno == 0) {
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n = DIRSIZ(0, dirp);
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if (dirp->d_reclen < n + entrysize)
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goto chk2;
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proto.d_reclen = dirp->d_reclen - n;
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dirp->d_reclen = n;
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idesc->id_entryno++;
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inoinfo(dirp->d_ino)->ino_linkcnt--;
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dirp = (struct direct *)((char *)(dirp) + n);
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memset(dirp, 0, (size_t)proto.d_reclen);
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dirp->d_reclen = proto.d_reclen;
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}
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if (dirp->d_ino != 0 && strcmp(dirp->d_name, "..") == 0) {
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inp->i_dotdot = dirp->d_ino;
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if (dirp->d_type != DT_DIR) {
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direrror(idesc->id_number, "BAD TYPE VALUE FOR '..'");
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dirp->d_type = DT_DIR;
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if (reply("FIX") == 1)
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ret |= ALTERED;
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}
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goto chk2;
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}
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if (dirp->d_ino != 0 && strcmp(dirp->d_name, ".") != 0) {
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fileerror(inp->i_parent, idesc->id_number, "MISSING '..'");
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pfatal("CANNOT FIX, SECOND ENTRY IN DIRECTORY CONTAINS %s\n",
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dirp->d_name);
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inp->i_dotdot = (ino_t)-1;
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} else if (dirp->d_reclen < entrysize) {
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fileerror(inp->i_parent, idesc->id_number, "MISSING '..'");
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pfatal("CANNOT FIX, INSUFFICIENT SPACE TO ADD '..'\n");
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inp->i_dotdot = (ino_t)-1;
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} else if (inp->i_parent != 0) {
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/*
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* We know the parent, so fix now.
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*/
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inp->i_dotdot = inp->i_parent;
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fileerror(inp->i_parent, idesc->id_number, "MISSING '..'");
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proto.d_reclen = dirp->d_reclen;
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memmove(dirp, &proto, (size_t)entrysize);
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if (reply("FIX") == 1)
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ret |= ALTERED;
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}
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idesc->id_entryno++;
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if (dirp->d_ino != 0)
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inoinfo(dirp->d_ino)->ino_linkcnt--;
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return (ret|KEEPON);
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chk2:
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if (dirp->d_ino == 0)
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return (ret|KEEPON);
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if (dirp->d_namlen <= 2 &&
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dirp->d_name[0] == '.' &&
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idesc->id_entryno >= 2) {
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if (dirp->d_namlen == 1) {
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direrror(idesc->id_number, "EXTRA '.' ENTRY");
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dirp->d_ino = 0;
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if (reply("FIX") == 1)
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ret |= ALTERED;
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return (KEEPON | ret);
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}
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if (dirp->d_name[1] == '.') {
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direrror(idesc->id_number, "EXTRA '..' ENTRY");
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dirp->d_ino = 0;
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if (reply("FIX") == 1)
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ret |= ALTERED;
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return (KEEPON | ret);
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}
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}
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idesc->id_entryno++;
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n = 0;
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if (dirp->d_ino > maxino) {
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fileerror(idesc->id_number, dirp->d_ino, "I OUT OF RANGE");
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n = reply("REMOVE");
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} else if (((dirp->d_ino == WINO && dirp->d_type != DT_WHT) ||
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(dirp->d_ino != WINO && dirp->d_type == DT_WHT))) {
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fileerror(idesc->id_number, dirp->d_ino, "BAD WHITEOUT ENTRY");
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dirp->d_ino = WINO;
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dirp->d_type = DT_WHT;
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if (reply("FIX") == 1)
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ret |= ALTERED;
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} else {
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again:
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switch (inoinfo(dirp->d_ino)->ino_state) {
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case USTATE:
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if (idesc->id_entryno <= 2)
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break;
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fileerror(idesc->id_number, dirp->d_ino, "UNALLOCATED");
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n = reply("REMOVE");
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break;
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case DCLEAR:
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case FCLEAR:
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if (idesc->id_entryno <= 2)
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break;
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if (inoinfo(dirp->d_ino)->ino_state == FCLEAR)
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errmsg = "DUP/BAD";
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else if (!preen && !usedsoftdep)
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errmsg = "ZERO LENGTH DIRECTORY";
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else if (cursnapshot == 0) {
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n = 1;
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break;
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} else {
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getpathname(dirname, idesc->id_number,
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dirp->d_ino);
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pwarn("ZERO LENGTH DIRECTORY %s I=%ju",
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dirname, (uintmax_t)dirp->d_ino);
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/*
|
|
* We need to:
|
|
* setcwd(idesc->id_parent);
|
|
* rmdir(dirp->d_name);
|
|
*/
|
|
cmd.value = idesc->id_number;
|
|
if (sysctlbyname("vfs.ffs.setcwd", 0, 0,
|
|
&cmd, sizeof cmd) == -1) {
|
|
/* kernel lacks support */
|
|
printf(" (IGNORED)\n");
|
|
n = 1;
|
|
break;
|
|
}
|
|
if (rmdir(dirp->d_name) == -1) {
|
|
printf(" (REMOVAL FAILED: %s)\n",
|
|
strerror(errno));
|
|
n = 1;
|
|
break;
|
|
}
|
|
/* ".." reference to parent is removed */
|
|
inoinfo(idesc->id_number)->ino_linkcnt--;
|
|
printf(" (REMOVED)\n");
|
|
break;
|
|
}
|
|
fileerror(idesc->id_number, dirp->d_ino, errmsg);
|
|
if ((n = reply("REMOVE")) == 1)
|
|
break;
|
|
dp = ginode(dirp->d_ino);
|
|
inoinfo(dirp->d_ino)->ino_state =
|
|
(DIP(dp, di_mode) & IFMT) == IFDIR ? DSTATE : FSTATE;
|
|
inoinfo(dirp->d_ino)->ino_linkcnt = DIP(dp, di_nlink);
|
|
goto again;
|
|
|
|
case DSTATE:
|
|
case DZLINK:
|
|
if (inoinfo(idesc->id_number)->ino_state == DFOUND)
|
|
inoinfo(dirp->d_ino)->ino_state = DFOUND;
|
|
/* FALLTHROUGH */
|
|
|
|
case DFOUND:
|
|
inp = getinoinfo(dirp->d_ino);
|
|
if (idesc->id_entryno > 2) {
|
|
if (inp->i_parent == 0)
|
|
inp->i_parent = idesc->id_number;
|
|
else if ((n = fix_extraneous(inp, idesc)) == 1)
|
|
break;
|
|
}
|
|
/* FALLTHROUGH */
|
|
|
|
case FSTATE:
|
|
case FZLINK:
|
|
if (dirp->d_type != inoinfo(dirp->d_ino)->ino_type) {
|
|
fileerror(idesc->id_number, dirp->d_ino,
|
|
"BAD TYPE VALUE");
|
|
dirp->d_type = inoinfo(dirp->d_ino)->ino_type;
|
|
if (reply("FIX") == 1)
|
|
ret |= ALTERED;
|
|
}
|
|
inoinfo(dirp->d_ino)->ino_linkcnt--;
|
|
break;
|
|
|
|
default:
|
|
errx(EEXIT, "BAD STATE %d FOR INODE I=%ju",
|
|
inoinfo(dirp->d_ino)->ino_state,
|
|
(uintmax_t)dirp->d_ino);
|
|
}
|
|
}
|
|
if (n == 0)
|
|
return (ret|KEEPON);
|
|
dirp->d_ino = 0;
|
|
return (ret|KEEPON|ALTERED);
|
|
}
|
|
|
|
static int
|
|
fix_extraneous(struct inoinfo *inp, struct inodesc *idesc)
|
|
{
|
|
char *cp;
|
|
struct inodesc dotdesc;
|
|
char oldname[MAXPATHLEN + 1];
|
|
char newname[MAXPATHLEN + 1];
|
|
|
|
/*
|
|
* If we have not yet found "..", look it up now so we know
|
|
* which inode the directory itself believes is its parent.
|
|
*/
|
|
if (inp->i_dotdot == 0) {
|
|
memset(&dotdesc, 0, sizeof(struct inodesc));
|
|
dotdesc.id_type = DATA;
|
|
dotdesc.id_number = idesc->id_dirp->d_ino;
|
|
dotdesc.id_func = findino;
|
|
dotdesc.id_name = strdup("..");
|
|
if ((ckinode(ginode(dotdesc.id_number), &dotdesc) & FOUND))
|
|
inp->i_dotdot = dotdesc.id_parent;
|
|
}
|
|
/*
|
|
* We have the previously found old name (inp->i_parent) and the
|
|
* just found new name (idesc->id_number). We have five cases:
|
|
* 1) ".." is missing - can remove either name, choose to delete
|
|
* new one and let fsck create ".." pointing to old name.
|
|
* 2) Both new and old are in same directory, choose to delete
|
|
* the new name and let fsck fix ".." if it is wrong.
|
|
* 3) ".." does not point to the new name, so delete it and let
|
|
* fsck fix ".." to point to the old one if it is wrong.
|
|
* 4) ".." points to the old name only, so delete the new one.
|
|
* 5) ".." points to the new name only, so delete the old one.
|
|
*
|
|
* For cases 1-4 we eliminate the new name;
|
|
* for case 5 we eliminate the old name.
|
|
*/
|
|
if (inp->i_dotdot == 0 || /* Case 1 */
|
|
idesc->id_number == inp->i_parent || /* Case 2 */
|
|
inp->i_dotdot != idesc->id_number || /* Case 3 */
|
|
inp->i_dotdot == inp->i_parent) { /* Case 4 */
|
|
getpathname(newname, idesc->id_number, idesc->id_number);
|
|
if (strcmp(newname, "/") != 0)
|
|
strcat (newname, "/");
|
|
strcat(newname, idesc->id_dirp->d_name);
|
|
getpathname(oldname, inp->i_number, inp->i_number);
|
|
pwarn("%s IS AN EXTRANEOUS HARD LINK TO DIRECTORY %s",
|
|
newname, oldname);
|
|
if (cursnapshot != 0) {
|
|
/*
|
|
* We need to
|
|
* setcwd(idesc->id_number);
|
|
* unlink(idesc->id_dirp->d_name);
|
|
*/
|
|
cmd.value = idesc->id_number;
|
|
if (sysctlbyname("vfs.ffs.setcwd", 0, 0,
|
|
&cmd, sizeof cmd) == -1) {
|
|
printf(" (IGNORED)\n");
|
|
return (0);
|
|
}
|
|
cmd.value = (intptr_t)idesc->id_dirp->d_name;
|
|
cmd.size = inp->i_number; /* verify same name */
|
|
if (sysctlbyname("vfs.ffs.unlink", 0, 0,
|
|
&cmd, sizeof cmd) == -1) {
|
|
printf(" (UNLINK FAILED: %s)\n",
|
|
strerror(errno));
|
|
return (0);
|
|
}
|
|
printf(" (REMOVED)\n");
|
|
return (0);
|
|
}
|
|
if (preen) {
|
|
printf(" (REMOVED)\n");
|
|
return (1);
|
|
}
|
|
return (reply("REMOVE"));
|
|
}
|
|
/*
|
|
* None of the first four cases above, so must be case (5).
|
|
* Eliminate the old name and make the new the name the parent.
|
|
*/
|
|
getpathname(oldname, inp->i_parent, inp->i_number);
|
|
getpathname(newname, inp->i_number, inp->i_number);
|
|
pwarn("%s IS AN EXTRANEOUS HARD LINK TO DIRECTORY %s", oldname,
|
|
newname);
|
|
if (cursnapshot != 0) {
|
|
/*
|
|
* We need to
|
|
* setcwd(inp->i_parent);
|
|
* unlink(last component of oldname pathname);
|
|
*/
|
|
cmd.value = inp->i_parent;
|
|
if (sysctlbyname("vfs.ffs.setcwd", 0, 0,
|
|
&cmd, sizeof cmd) == -1) {
|
|
printf(" (IGNORED)\n");
|
|
return (0);
|
|
}
|
|
if ((cp = strchr(oldname, '/')) == NULL) {
|
|
printf(" (IGNORED)\n");
|
|
return (0);
|
|
}
|
|
cmd.value = (intptr_t)(cp + 1);
|
|
cmd.size = inp->i_number; /* verify same name */
|
|
if (sysctlbyname("vfs.ffs.unlink", 0, 0,
|
|
&cmd, sizeof cmd) == -1) {
|
|
printf(" (UNLINK FAILED: %s)\n",
|
|
strerror(errno));
|
|
return (0);
|
|
}
|
|
printf(" (REMOVED)\n");
|
|
inp->i_parent = idesc->id_number; /* reparent to correct dir */
|
|
return (0);
|
|
}
|
|
if (!preen && !reply("REMOVE"))
|
|
return (0);
|
|
memset(&dotdesc, 0, sizeof(struct inodesc));
|
|
dotdesc.id_type = DATA;
|
|
dotdesc.id_number = inp->i_parent; /* directory in which name appears */
|
|
dotdesc.id_parent = inp->i_number; /* inode number in entry to delete */
|
|
dotdesc.id_func = deleteentry;
|
|
if ((ckinode(ginode(dotdesc.id_number), &dotdesc) & FOUND) && preen)
|
|
printf(" (REMOVED)\n");
|
|
inp->i_parent = idesc->id_number; /* reparent to correct directory */
|
|
inoinfo(inp->i_number)->ino_linkcnt++; /* name gone, return reference */
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
deleteentry(struct inodesc *idesc)
|
|
{
|
|
struct direct *dirp = idesc->id_dirp;
|
|
|
|
if (idesc->id_entryno++ < 2 || dirp->d_ino != idesc->id_parent)
|
|
return (KEEPON);
|
|
dirp->d_ino = 0;
|
|
return (ALTERED|STOP|FOUND);
|
|
}
|
|
|
|
/*
|
|
* Routine to sort disk blocks.
|
|
*/
|
|
static int
|
|
blksort(const void *arg1, const void *arg2)
|
|
{
|
|
|
|
return ((*(struct inoinfo * const *)arg1)->i_blks[0] -
|
|
(*(struct inoinfo * const *)arg2)->i_blks[0]);
|
|
}
|