Logo Search packages:      
Sourcecode: ufsutils version File versions  Download package

dir.c

/*
 * Copyright (c) 1980, 1986, 1993
 *    The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#if 0
#ifndef lint
static const char sccsid[] = "@(#)dir.c   8.8 (Berkeley) 4/28/95";
#endif /* not lint */
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/sbin/fsck_ffs/dir.c,v 1.30 2004/10/08 20:44:47 truckman Exp $");

#include <sys/param.h>
#include <sys/time.h>
#include <sys/sysctl.h>

#include <ufs/ufs/dinode.h>
#include <ufs/ufs/dir.h>
#include <ufs/ffs/fs.h>

#include <err.h>
#include <string.h>

#include "fsck.h"

const char  *lfname = "lost+found";
int   lfmode = 0700;
struct      dirtemplate emptydir = {
      0, DIRBLKSIZ, DT_UNKNOWN, 0, "",
      0, 0, DT_UNKNOWN, 0, ""
};
struct      dirtemplate dirhead = {
      0, 12, DT_DIR, 1, ".",
      0, DIRBLKSIZ - 12, DT_DIR, 2, ".."
};
struct      odirtemplate odirhead = {
      0, 12, 1, ".",
      0, DIRBLKSIZ - 12, 2, ".."
};

static int chgino(struct inodesc *);
static int dircheck(struct inodesc *, struct direct *);
static int expanddir(union dinode *dp, char *name);
static void freedir(ino_t ino, ino_t parent);
static struct direct *fsck_readdir(struct inodesc *);
static struct bufarea *getdirblk(ufs2_daddr_t blkno, long size);
static int lftempname(char *bufp, ino_t ino);
static int mkentry(struct inodesc *);

/*
 * Propagate connected state through the tree.
 */
void
propagate(void)
{
      struct inoinfo **inpp, *inp;
      struct inoinfo **inpend;
      long change;

      inpend = &inpsort[inplast];
      do {
            change = 0;
            for (inpp = inpsort; inpp < inpend; inpp++) {
                  inp = *inpp;
                  if (inp->i_parent == 0)
                        continue;
                  if (inoinfo(inp->i_parent)->ino_state == DFOUND &&
                      INO_IS_DUNFOUND(inp->i_number)) {
                        inoinfo(inp->i_number)->ino_state = DFOUND;
                        change++;
                  }
            }
      } while (change > 0);
}

/*
 * Scan each entry in a directory block.
 */
int
dirscan(struct inodesc *idesc)
{
      struct direct *dp;
      struct bufarea *bp;
      u_int dsize, n;
      long blksiz;
      char dbuf[DIRBLKSIZ];

      if (idesc->id_type != DATA)
            errx(EEXIT, "wrong type to dirscan %d", idesc->id_type);
      if (idesc->id_entryno == 0 &&
          (idesc->id_filesize & (DIRBLKSIZ - 1)) != 0)
            idesc->id_filesize = roundup(idesc->id_filesize, DIRBLKSIZ);
      blksiz = idesc->id_numfrags * sblock.fs_fsize;
      if (chkrange(idesc->id_blkno, idesc->id_numfrags)) {
            idesc->id_filesize -= blksiz;
            return (SKIP);
      }
      idesc->id_loc = 0;
      for (dp = fsck_readdir(idesc); dp != NULL; dp = fsck_readdir(idesc)) {
            dsize = dp->d_reclen;
            if (dsize > sizeof(dbuf))
                  dsize = sizeof(dbuf);
            memmove(dbuf, dp, (size_t)dsize);
            idesc->id_dirp = (struct direct *)dbuf;
            if ((n = (*idesc->id_func)(idesc)) & ALTERED) {
                  bp = getdirblk(idesc->id_blkno, blksiz);
                  memmove(bp->b_un.b_buf + idesc->id_loc - dsize, dbuf,
                      (size_t)dsize);
                  dirty(bp);
                  sbdirty();
            }
            if (n & STOP)
                  return (n);
      }
      return (idesc->id_filesize > 0 ? KEEPON : STOP);
}

/*
 * get next entry in a directory.
 */
static struct direct *
fsck_readdir(struct inodesc *idesc)
{
      struct direct *dp, *ndp;
      struct bufarea *bp;
      long size, blksiz, fix, dploc;

      blksiz = idesc->id_numfrags * sblock.fs_fsize;
      bp = getdirblk(idesc->id_blkno, blksiz);
      if (idesc->id_loc % DIRBLKSIZ == 0 && idesc->id_filesize > 0 &&
          idesc->id_loc < blksiz) {
            dp = (struct direct *)(bp->b_un.b_buf + idesc->id_loc);
            if (dircheck(idesc, dp))
                  goto dpok;
            if (idesc->id_fix == IGNORE)
                  return (0);
            fix = dofix(idesc, "DIRECTORY CORRUPTED");
            bp = getdirblk(idesc->id_blkno, blksiz);
            dp = (struct direct *)(bp->b_un.b_buf + idesc->id_loc);
            dp->d_reclen = DIRBLKSIZ;
            dp->d_ino = 0;
            dp->d_type = 0;
            dp->d_namlen = 0;
            dp->d_name[0] = '\0';
            if (fix)
                  dirty(bp);
            idesc->id_loc += DIRBLKSIZ;
            idesc->id_filesize -= DIRBLKSIZ;
            return (dp);
      }
dpok:
      if (idesc->id_filesize <= 0 || idesc->id_loc >= blksiz)
            return NULL;
      dploc = idesc->id_loc;
      dp = (struct direct *)(bp->b_un.b_buf + dploc);
      idesc->id_loc += dp->d_reclen;
      idesc->id_filesize -= dp->d_reclen;
      if ((idesc->id_loc % DIRBLKSIZ) == 0)
            return (dp);
      ndp = (struct direct *)(bp->b_un.b_buf + idesc->id_loc);
      if (idesc->id_loc < blksiz && idesc->id_filesize > 0 &&
          dircheck(idesc, ndp) == 0) {
            size = DIRBLKSIZ - (idesc->id_loc % DIRBLKSIZ);
            idesc->id_loc += size;
            idesc->id_filesize -= size;
            if (idesc->id_fix == IGNORE)
                  return (0);
            fix = dofix(idesc, "DIRECTORY CORRUPTED");
            bp = getdirblk(idesc->id_blkno, blksiz);
            dp = (struct direct *)(bp->b_un.b_buf + dploc);
            dp->d_reclen += size;
            if (fix)
                  dirty(bp);
      }
      return (dp);
}

/*
 * Verify that a directory entry is valid.
 * This is a superset of the checks made in the kernel.
 */
static int
dircheck(struct inodesc *idesc, struct direct *dp)
{
      size_t size;
      char *cp;
      u_char type;
      u_int namlen;
      int spaceleft;

      spaceleft = DIRBLKSIZ - (idesc->id_loc % DIRBLKSIZ);
      if (dp->d_reclen == 0 ||
          dp->d_reclen > spaceleft ||
          (dp->d_reclen & 0x3) != 0)
            goto bad;
      if (dp->d_ino == 0)
            return (1);
      size = DIRSIZ(0, dp);
      namlen = dp->d_namlen;
      type = dp->d_type;
      if (dp->d_reclen < size ||
          idesc->id_filesize < size ||
          namlen > MAXNAMLEN ||
          type > 15)
            goto bad;
      for (cp = dp->d_name, size = 0; size < namlen; size++)
            if (*cp == '\0' || (*cp++ == '/'))
                  goto bad;
      if (*cp != '\0')
            goto bad;
      return (1);
bad:
      if (debug)
            printf("Bad dir: ino %d reclen %d namlen %d type %d name %s\n",
                dp->d_ino, dp->d_reclen, dp->d_namlen, dp->d_type,
                dp->d_name);
      return (0);
}

void
direrror(ino_t ino, const char *errmesg)
{

      fileerror(ino, ino, errmesg);
}

void
fileerror(ino_t cwd, ino_t ino, const char *errmesg)
{
      union dinode *dp;
      char pathbuf[MAXPATHLEN + 1];

      pwarn("%s ", errmesg);
      pinode(ino);
      printf("\n");
      getpathname(pathbuf, cwd, ino);
      if (ino < ROOTINO || ino > maxino) {
            pfatal("NAME=%s\n", pathbuf);
            return;
      }
      dp = ginode(ino);
      if (ftypeok(dp))
            pfatal("%s=%s\n",
                (DIP(dp, di_mode) & IFMT) == IFDIR ? "DIR" : "FILE",
                pathbuf);
      else
            pfatal("NAME=%s\n", pathbuf);
}

void
adjust(struct inodesc *idesc, int lcnt)
{
      union dinode *dp;
      int saveresolved;

      dp = ginode(idesc->id_number);
      if (DIP(dp, di_nlink) == lcnt) {
            /*
             * If we have not hit any unresolved problems, are running
             * in preen mode, and are on a file system using soft updates,
             * then just toss any partially allocated files.
             */
            if (resolved && (preen || bkgrdflag) && usedsoftdep) {
                  clri(idesc, "UNREF", 1);
                  return;
            } else {
                  /*
                   * The file system can be marked clean even if
                   * a file is not linked up, but is cleared.
                   * Hence, resolved should not be cleared when
                   * linkup is answered no, but clri is answered yes.
                   */
                  saveresolved = resolved;
                  if (linkup(idesc->id_number, (ino_t)0, NULL) == 0) {
                        resolved = saveresolved;
                        clri(idesc, "UNREF", 0);
                        return;
                  }
                  /*
                   * Account for the new reference created by linkup().
                   */
                  dp = ginode(idesc->id_number);
                  lcnt--;
            }
      }
      if (lcnt != 0) {
            pwarn("LINK COUNT %s", (lfdir == idesc->id_number) ? lfname :
                  ((DIP(dp, di_mode) & IFMT) == IFDIR ? "DIR" : "FILE"));
            pinode(idesc->id_number);
            printf(" COUNT %d SHOULD BE %d",
                  DIP(dp, di_nlink), DIP(dp, di_nlink) - lcnt);
            if (preen || usedsoftdep) {
                  if (lcnt < 0) {
                        printf("\n");
                        pfatal("LINK COUNT INCREASING");
                  }
                  if (preen)
                        printf(" (ADJUSTED)\n");
            }
            if (preen || reply("ADJUST") == 1) {
                  if (bkgrdflag == 0) {
                        DIP_SET(dp, di_nlink, DIP(dp, di_nlink) - lcnt);
                        inodirty();
                  } else {
                        cmd.value = idesc->id_number;
                        cmd.size = -lcnt;
                        if (debug)
                              printf("adjrefcnt ino %ld amt %lld\n",
                                  (long)cmd.value,
                                  (long long)cmd.size);
                        if (sysctl(adjrefcnt, MIBSIZE, 0, 0,
                            &cmd, sizeof cmd) == -1)
                              rwerror("ADJUST INODE", cmd.value);
                  }
            }
      }
}

static int
mkentry(struct inodesc *idesc)
{
      struct direct *dirp = idesc->id_dirp;
      struct direct newent;
      int newlen, oldlen;

      newent.d_namlen = strlen(idesc->id_name);
      newlen = DIRSIZ(0, &newent);
      if (dirp->d_ino != 0)
            oldlen = DIRSIZ(0, dirp);
      else
            oldlen = 0;
      if (dirp->d_reclen - oldlen < newlen)
            return (KEEPON);
      newent.d_reclen = dirp->d_reclen - oldlen;
      dirp->d_reclen = oldlen;
      dirp = (struct direct *)(((char *)dirp) + oldlen);
      dirp->d_ino = idesc->id_parent;     /* ino to be entered is in id_parent */
      dirp->d_reclen = newent.d_reclen;
      dirp->d_type = inoinfo(idesc->id_parent)->ino_type;
      dirp->d_namlen = newent.d_namlen;
      memmove(dirp->d_name, idesc->id_name, (size_t)newent.d_namlen + 1);
      return (ALTERED|STOP);
}

static int
chgino(struct inodesc *idesc)
{
      struct direct *dirp = idesc->id_dirp;

      if (memcmp(dirp->d_name, idesc->id_name, (int)dirp->d_namlen + 1))
            return (KEEPON);
      dirp->d_ino = idesc->id_parent;
      dirp->d_type = inoinfo(idesc->id_parent)->ino_type;
      return (ALTERED|STOP);
}

int
linkup(ino_t orphan, ino_t parentdir, char *name)
{
      union dinode *dp;
      int lostdir;
      ino_t oldlfdir;
      struct inodesc idesc;
      char tempname[BUFSIZ];

      memset(&idesc, 0, sizeof(struct inodesc));
      dp = ginode(orphan);
      lostdir = (DIP(dp, di_mode) & IFMT) == IFDIR;
      pwarn("UNREF %s ", lostdir ? "DIR" : "FILE");
      pinode(orphan);
      if (preen && DIP(dp, di_size) == 0)
            return (0);
      if (cursnapshot != 0) {
            pfatal("FILE LINKUP IN SNAPSHOT");
            return (0);
      }
      if (preen)
            printf(" (RECONNECTED)\n");
      else
            if (reply("RECONNECT") == 0)
                  return (0);
      if (lfdir == 0) {
            dp = ginode(ROOTINO);
            idesc.id_name = strdup(lfname);
            idesc.id_type = DATA;
            idesc.id_func = findino;
            idesc.id_number = ROOTINO;
            if ((ckinode(dp, &idesc) & FOUND) != 0) {
                  lfdir = idesc.id_parent;
            } else {
                  pwarn("NO lost+found DIRECTORY");
                  if (preen || reply("CREATE")) {
                        lfdir = allocdir(ROOTINO, (ino_t)0, lfmode);
                        if (lfdir != 0) {
                              if (makeentry(ROOTINO, lfdir, lfname) != 0) {
                                    numdirs++;
                                    if (preen)
                                          printf(" (CREATED)\n");
                              } else {
                                    freedir(lfdir, ROOTINO);
                                    lfdir = 0;
                                    if (preen)
                                          printf("\n");
                              }
                        }
                  }
            }
            if (lfdir == 0) {
                  pfatal("SORRY. CANNOT CREATE lost+found DIRECTORY");
                  printf("\n\n");
                  return (0);
            }
      }
      dp = ginode(lfdir);
      if ((DIP(dp, di_mode) & IFMT) != IFDIR) {
            pfatal("lost+found IS NOT A DIRECTORY");
            if (reply("REALLOCATE") == 0)
                  return (0);
            oldlfdir = lfdir;
            if ((lfdir = allocdir(ROOTINO, (ino_t)0, lfmode)) == 0) {
                  pfatal("SORRY. CANNOT CREATE lost+found DIRECTORY\n\n");
                  return (0);
            }
            if ((changeino(ROOTINO, lfname, lfdir) & ALTERED) == 0) {
                  pfatal("SORRY. CANNOT CREATE lost+found DIRECTORY\n\n");
                  return (0);
            }
            inodirty();
            idesc.id_type = ADDR;
            idesc.id_func = pass4check;
            idesc.id_number = oldlfdir;
            adjust(&idesc, inoinfo(oldlfdir)->ino_linkcnt + 1);
            inoinfo(oldlfdir)->ino_linkcnt = 0;
            dp = ginode(lfdir);
      }
      if (inoinfo(lfdir)->ino_state != DFOUND) {
            pfatal("SORRY. NO lost+found DIRECTORY\n\n");
            return (0);
      }
      (void)lftempname(tempname, orphan);
      if (makeentry(lfdir, orphan, (name ? name : tempname)) == 0) {
            pfatal("SORRY. NO SPACE IN lost+found DIRECTORY");
            printf("\n\n");
            return (0);
      }
      inoinfo(orphan)->ino_linkcnt--;
      if (lostdir) {
            if ((changeino(orphan, "..", lfdir) & ALTERED) == 0 &&
                parentdir != (ino_t)-1)
                  (void)makeentry(orphan, lfdir, "..");
            dp = ginode(lfdir);
            DIP_SET(dp, di_nlink, DIP(dp, di_nlink) + 1);
            inodirty();
            inoinfo(lfdir)->ino_linkcnt++;
            pwarn("DIR I=%lu CONNECTED. ", (u_long)orphan);
            if (parentdir != (ino_t)-1) {
                  printf("PARENT WAS I=%lu\n", (u_long)parentdir);
                  /*
                   * The parent directory, because of the ordering
                   * guarantees, has had the link count incremented
                   * for the child, but no entry was made.  This
                   * fixes the parent link count so that fsck does
                   * not need to be rerun.
                   */
                  inoinfo(parentdir)->ino_linkcnt++;
            }
            if (preen == 0)
                  printf("\n");
      }
      return (1);
}

/*
 * fix an entry in a directory.
 */
int
changeino(ino_t dir, const char *name, ino_t newnum)
{
      struct inodesc idesc;

      memset(&idesc, 0, sizeof(struct inodesc));
      idesc.id_type = DATA;
      idesc.id_func = chgino;
      idesc.id_number = dir;
      idesc.id_fix = DONTKNOW;
      idesc.id_name = strdup(name);
      idesc.id_parent = newnum;     /* new value for name */
      return (ckinode(ginode(dir), &idesc));
}

/*
 * make an entry in a directory
 */
int
makeentry(ino_t parent, ino_t ino, const char *name)
{
      union dinode *dp;
      struct inodesc idesc;
      char pathbuf[MAXPATHLEN + 1];

      if (parent < ROOTINO || parent >= maxino ||
          ino < ROOTINO || ino >= maxino)
            return (0);
      memset(&idesc, 0, sizeof(struct inodesc));
      idesc.id_type = DATA;
      idesc.id_func = mkentry;
      idesc.id_number = parent;
      idesc.id_parent = ino;  /* this is the inode to enter */
      idesc.id_fix = DONTKNOW;
      idesc.id_name = strdup(name);
      dp = ginode(parent);
      if (DIP(dp, di_size) % DIRBLKSIZ) {
            DIP_SET(dp, di_size, roundup(DIP(dp, di_size), DIRBLKSIZ));
            inodirty();
      }
      if ((ckinode(dp, &idesc) & ALTERED) != 0)
            return (1);
      getpathname(pathbuf, parent, parent);
      dp = ginode(parent);
      if (expanddir(dp, pathbuf) == 0)
            return (0);
      return (ckinode(dp, &idesc) & ALTERED);
}

/*
 * Attempt to expand the size of a directory
 */
static int
expanddir(union dinode *dp, char *name)
{
      ufs2_daddr_t lastbn, newblk;
      struct bufarea *bp;
      char *cp, firstblk[DIRBLKSIZ];

      lastbn = lblkno(&sblock, DIP(dp, di_size));
      if (lastbn >= NDADDR - 1 || DIP(dp, di_db[lastbn]) == 0 ||
          DIP(dp, di_size) == 0)
            return (0);
      if ((newblk = allocblk(sblock.fs_frag)) == 0)
            return (0);
      DIP_SET(dp, di_db[lastbn + 1], DIP(dp, di_db[lastbn]));
      DIP_SET(dp, di_db[lastbn], newblk);
      DIP_SET(dp, di_size, DIP(dp, di_size) + sblock.fs_bsize);
      DIP_SET(dp, di_blocks, DIP(dp, di_blocks) + btodb(sblock.fs_bsize));
      bp = getdirblk(DIP(dp, di_db[lastbn + 1]),
            sblksize(&sblock, DIP(dp, di_size), lastbn + 1));
      if (bp->b_errs)
            goto bad;
      memmove(firstblk, bp->b_un.b_buf, DIRBLKSIZ);
      bp = getdirblk(newblk, sblock.fs_bsize);
      if (bp->b_errs)
            goto bad;
      memmove(bp->b_un.b_buf, firstblk, DIRBLKSIZ);
      for (cp = &bp->b_un.b_buf[DIRBLKSIZ];
           cp < &bp->b_un.b_buf[sblock.fs_bsize];
           cp += DIRBLKSIZ)
            memmove(cp, &emptydir, sizeof emptydir);
      dirty(bp);
      bp = getdirblk(DIP(dp, di_db[lastbn + 1]),
            sblksize(&sblock, DIP(dp, di_size), lastbn + 1));
      if (bp->b_errs)
            goto bad;
      memmove(bp->b_un.b_buf, &emptydir, sizeof emptydir);
      pwarn("NO SPACE LEFT IN %s", name);
      if (preen)
            printf(" (EXPANDED)\n");
      else if (reply("EXPAND") == 0)
            goto bad;
      dirty(bp);
      inodirty();
      return (1);
bad:
      DIP_SET(dp, di_db[lastbn], DIP(dp, di_db[lastbn + 1]));
      DIP_SET(dp, di_db[lastbn + 1], 0);
      DIP_SET(dp, di_size, DIP(dp, di_size) - sblock.fs_bsize);
      DIP_SET(dp, di_blocks, DIP(dp, di_blocks) - btodb(sblock.fs_bsize));
      freeblk(newblk, sblock.fs_frag);
      return (0);
}

/*
 * allocate a new directory
 */
ino_t
allocdir(ino_t parent, ino_t request, int mode)
{
      ino_t ino;
      char *cp;
      union dinode *dp;
      struct bufarea *bp;
      struct inoinfo *inp;
      struct dirtemplate *dirp;

      ino = allocino(request, IFDIR|mode);
      dirp = &dirhead;
      dirp->dot_ino = ino;
      dirp->dotdot_ino = parent;
      dp = ginode(ino);
      bp = getdirblk(DIP(dp, di_db[0]), sblock.fs_fsize);
      if (bp->b_errs) {
            freeino(ino);
            return (0);
      }
      memmove(bp->b_un.b_buf, dirp, sizeof(struct dirtemplate));
      for (cp = &bp->b_un.b_buf[DIRBLKSIZ];
           cp < &bp->b_un.b_buf[sblock.fs_fsize];
           cp += DIRBLKSIZ)
            memmove(cp, &emptydir, sizeof emptydir);
      dirty(bp);
      DIP_SET(dp, di_nlink, 2);
      inodirty();
      if (ino == ROOTINO) {
            inoinfo(ino)->ino_linkcnt = DIP(dp, di_nlink);
            cacheino(dp, ino);
            return(ino);
      }
      if (!INO_IS_DVALID(parent)) {
            freeino(ino);
            return (0);
      }
      cacheino(dp, ino);
      inp = getinoinfo(ino);
      inp->i_parent = parent;
      inp->i_dotdot = parent;
      inoinfo(ino)->ino_state = inoinfo(parent)->ino_state;
      if (inoinfo(ino)->ino_state == DSTATE) {
            inoinfo(ino)->ino_linkcnt = DIP(dp, di_nlink);
            inoinfo(parent)->ino_linkcnt++;
      }
      dp = ginode(parent);
      DIP_SET(dp, di_nlink, DIP(dp, di_nlink) + 1);
      inodirty();
      return (ino);
}

/*
 * free a directory inode
 */
static void
freedir(ino_t ino, ino_t parent)
{
      union dinode *dp;

      if (ino != parent) {
            dp = ginode(parent);
            DIP_SET(dp, di_nlink, DIP(dp, di_nlink) - 1);
            inodirty();
      }
      freeino(ino);
}

/*
 * generate a temporary name for the lost+found directory.
 */
static int
lftempname(char *bufp, ino_t ino)
{
      ino_t in;
      char *cp;
      int namlen;

      cp = bufp + 2;
      for (in = maxino; in > 0; in /= 10)
            cp++;
      *--cp = 0;
      namlen = cp - bufp;
      in = ino;
      while (cp > bufp) {
            *--cp = (in % 10) + '0';
            in /= 10;
      }
      *cp = '#';
      return (namlen);
}

/*
 * Get a directory block.
 * Insure that it is held until another is requested.
 */
static struct bufarea *
getdirblk(ufs2_daddr_t blkno, long size)
{

      if (pdirbp != 0)
            pdirbp->b_flags &= ~B_INUSE;
      pdirbp = getdatablk(blkno, size);
      return (pdirbp);
}

Generated by  Doxygen 1.6.0   Back to index