627 lines
15 KiB
C
627 lines
15 KiB
C
/*
|
|
* Copyright (c) 1980, 1986 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)dir.c 5.19 (Berkeley) 7/26/91";
|
|
static char rcsid[] = "$Header: /cvsroot/src/sbin/fsck_ffs/dir.c,v 1.3 1993/03/23 00:27:46 cgd Exp $";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/param.h>
|
|
#include <ufs/dinode.h>
|
|
#include <ufs/fs.h>
|
|
#define KERNEL
|
|
#include <ufs/dir.h>
|
|
#undef KERNEL
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include "fsck.h"
|
|
|
|
char *lfname = "lost+found";
|
|
int lfmode = 01777;
|
|
struct dirtemplate emptydir = { 0, DIRBLKSIZ };
|
|
struct dirtemplate dirhead = { 0, 12, 1, ".", 0, DIRBLKSIZ - 12, 2, ".." };
|
|
|
|
struct direct *fsck_readdir();
|
|
struct bufarea *getdirblk();
|
|
|
|
/*
|
|
* Propagate connected state through the tree.
|
|
*/
|
|
propagate()
|
|
{
|
|
register 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 (statemap[inp->i_parent] == DFOUND &&
|
|
statemap[inp->i_number] == DSTATE) {
|
|
statemap[inp->i_number] = DFOUND;
|
|
change++;
|
|
}
|
|
}
|
|
} while (change > 0);
|
|
}
|
|
|
|
/*
|
|
* Scan each entry in a directory block.
|
|
*/
|
|
dirscan(idesc)
|
|
register struct inodesc *idesc;
|
|
{
|
|
register struct direct *dp;
|
|
register struct bufarea *bp;
|
|
int dsize, n;
|
|
long blksiz;
|
|
char dbuf[DIRBLKSIZ];
|
|
|
|
if (idesc->id_type != DATA)
|
|
errexit("wrong type to dirscan %d\n", 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;
|
|
bcopy((char *)dp, dbuf, (size_t)dsize);
|
|
idesc->id_dirp = (struct direct *)dbuf;
|
|
if ((n = (*idesc->id_func)(idesc)) & ALTERED) {
|
|
bp = getdirblk(idesc->id_blkno, blksiz);
|
|
bcopy(dbuf, bp->b_un.b_buf + idesc->id_loc - dsize,
|
|
(size_t)dsize);
|
|
dirty(bp);
|
|
sbdirty();
|
|
}
|
|
if (n & STOP)
|
|
return (n);
|
|
}
|
|
return (idesc->id_filesize > 0 ? KEEPON : STOP);
|
|
}
|
|
|
|
/*
|
|
* get next entry in a directory.
|
|
*/
|
|
struct direct *
|
|
fsck_readdir(idesc)
|
|
register struct inodesc *idesc;
|
|
{
|
|
register struct direct *dp, *ndp;
|
|
register struct bufarea *bp;
|
|
long size, blksiz, fix;
|
|
|
|
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;
|
|
idesc->id_loc += DIRBLKSIZ;
|
|
idesc->id_filesize -= DIRBLKSIZ;
|
|
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_namlen = 0;
|
|
dp->d_name[0] = '\0';
|
|
if (fix)
|
|
dirty(bp);
|
|
return (dp);
|
|
}
|
|
dpok:
|
|
if (idesc->id_filesize <= 0 || idesc->id_loc >= blksiz)
|
|
return NULL;
|
|
dp = (struct direct *)(bp->b_un.b_buf + idesc->id_loc);
|
|
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;
|
|
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 += 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.
|
|
*/
|
|
dircheck(idesc, dp)
|
|
struct inodesc *idesc;
|
|
register struct direct *dp;
|
|
{
|
|
register int size;
|
|
register char *cp;
|
|
int spaceleft;
|
|
|
|
size = DIRSIZ(dp);
|
|
spaceleft = DIRBLKSIZ - (idesc->id_loc % DIRBLKSIZ);
|
|
if (dp->d_ino < maxino &&
|
|
dp->d_reclen != 0 &&
|
|
dp->d_reclen <= spaceleft &&
|
|
(dp->d_reclen & 0x3) == 0 &&
|
|
dp->d_reclen >= size &&
|
|
idesc->id_filesize >= size &&
|
|
dp->d_namlen <= MAXNAMLEN) {
|
|
if (dp->d_ino == 0)
|
|
return (1);
|
|
for (cp = dp->d_name, size = 0; size < dp->d_namlen; size++)
|
|
if (*cp == 0 || (*cp++ == '/'))
|
|
return (0);
|
|
if (*cp == 0)
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
direrror(ino, errmesg)
|
|
ino_t ino;
|
|
char *errmesg;
|
|
{
|
|
|
|
fileerror(ino, ino, errmesg);
|
|
}
|
|
|
|
fileerror(cwd, ino, errmesg)
|
|
ino_t cwd, ino;
|
|
char *errmesg;
|
|
{
|
|
register struct 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",
|
|
(dp->di_mode & IFMT) == IFDIR ? "DIR" : "FILE", pathbuf);
|
|
else
|
|
pfatal("NAME=%s\n", pathbuf);
|
|
}
|
|
|
|
adjust(idesc, lcnt)
|
|
register struct inodesc *idesc;
|
|
short lcnt;
|
|
{
|
|
register struct dinode *dp;
|
|
|
|
dp = ginode(idesc->id_number);
|
|
if (dp->di_nlink == lcnt) {
|
|
if (linkup(idesc->id_number, (ino_t)0) == 0)
|
|
clri(idesc, "UNREF", 0);
|
|
} else {
|
|
pwarn("LINK COUNT %s", (lfdir == idesc->id_number) ? lfname :
|
|
((dp->di_mode & IFMT) == IFDIR ? "DIR" : "FILE"));
|
|
pinode(idesc->id_number);
|
|
printf(" COUNT %d SHOULD BE %d",
|
|
dp->di_nlink, dp->di_nlink - lcnt);
|
|
if (preen) {
|
|
if (lcnt < 0) {
|
|
printf("\n");
|
|
pfatal("LINK COUNT INCREASING");
|
|
}
|
|
printf(" (ADJUSTED)\n");
|
|
}
|
|
if (preen || reply("ADJUST") == 1) {
|
|
dp->di_nlink -= lcnt;
|
|
inodirty();
|
|
}
|
|
}
|
|
}
|
|
|
|
mkentry(idesc)
|
|
struct inodesc *idesc;
|
|
{
|
|
register struct direct *dirp = idesc->id_dirp;
|
|
struct direct newent;
|
|
int newlen, oldlen;
|
|
|
|
newent.d_namlen = strlen(idesc->id_name);
|
|
newlen = DIRSIZ(&newent);
|
|
if (dirp->d_ino != 0)
|
|
oldlen = DIRSIZ(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_namlen = newent.d_namlen;
|
|
bcopy(idesc->id_name, dirp->d_name, (size_t)dirp->d_namlen + 1);
|
|
return (ALTERED|STOP);
|
|
}
|
|
|
|
chgino(idesc)
|
|
struct inodesc *idesc;
|
|
{
|
|
register struct direct *dirp = idesc->id_dirp;
|
|
|
|
if (bcmp(dirp->d_name, idesc->id_name, (int)dirp->d_namlen + 1))
|
|
return (KEEPON);
|
|
dirp->d_ino = idesc->id_parent;
|
|
return (ALTERED|STOP);
|
|
}
|
|
|
|
linkup(orphan, parentdir)
|
|
ino_t orphan;
|
|
ino_t parentdir;
|
|
{
|
|
register struct dinode *dp;
|
|
int lostdir;
|
|
ino_t oldlfdir;
|
|
struct inodesc idesc;
|
|
char tempname[BUFSIZ];
|
|
extern int pass4check();
|
|
|
|
bzero((char *)&idesc, sizeof(struct inodesc));
|
|
dp = ginode(orphan);
|
|
lostdir = (dp->di_mode & IFMT) == IFDIR;
|
|
pwarn("UNREF %s ", lostdir ? "DIR" : "FILE");
|
|
pinode(orphan);
|
|
if (preen && dp->di_size == 0)
|
|
return (0);
|
|
if (preen)
|
|
printf(" (RECONNECTED)\n");
|
|
else
|
|
if (reply("RECONNECT") == 0)
|
|
return (0);
|
|
if (lfdir == 0) {
|
|
dp = ginode(ROOTINO);
|
|
idesc.id_name = 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) {
|
|
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 ((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, lncntp[oldlfdir] + 1);
|
|
lncntp[oldlfdir] = 0;
|
|
dp = ginode(lfdir);
|
|
}
|
|
if (statemap[lfdir] != DFOUND) {
|
|
pfatal("SORRY. NO lost+found DIRECTORY\n\n");
|
|
return (0);
|
|
}
|
|
(void)lftempname(tempname, orphan);
|
|
if (makeentry(lfdir, orphan, tempname) == 0) {
|
|
pfatal("SORRY. NO SPACE IN lost+found DIRECTORY");
|
|
printf("\n\n");
|
|
return (0);
|
|
}
|
|
lncntp[orphan]--;
|
|
if (lostdir) {
|
|
if ((changeino(orphan, "..", lfdir) & ALTERED) == 0 &&
|
|
parentdir != (ino_t)-1)
|
|
(void)makeentry(orphan, lfdir, "..");
|
|
dp = ginode(lfdir);
|
|
dp->di_nlink++;
|
|
inodirty();
|
|
lncntp[lfdir]++;
|
|
pwarn("DIR I=%lu CONNECTED. ", orphan);
|
|
if (parentdir != (ino_t)-1)
|
|
printf("PARENT WAS I=%lu\n", parentdir);
|
|
if (preen == 0)
|
|
printf("\n");
|
|
}
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* fix an entry in a directory.
|
|
*/
|
|
changeino(dir, name, newnum)
|
|
ino_t dir;
|
|
char *name;
|
|
ino_t newnum;
|
|
{
|
|
struct inodesc idesc;
|
|
|
|
bzero((char *)&idesc, sizeof(struct inodesc));
|
|
idesc.id_type = DATA;
|
|
idesc.id_func = chgino;
|
|
idesc.id_number = dir;
|
|
idesc.id_fix = DONTKNOW;
|
|
idesc.id_name = name;
|
|
idesc.id_parent = newnum; /* new value for name */
|
|
return (ckinode(ginode(dir), &idesc));
|
|
}
|
|
|
|
/*
|
|
* make an entry in a directory
|
|
*/
|
|
makeentry(parent, ino, name)
|
|
ino_t parent, ino;
|
|
char *name;
|
|
{
|
|
struct dinode *dp;
|
|
struct inodesc idesc;
|
|
char pathbuf[MAXPATHLEN + 1];
|
|
|
|
if (parent < ROOTINO || parent >= maxino ||
|
|
ino < ROOTINO || ino >= maxino)
|
|
return (0);
|
|
bzero((char *)&idesc, 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 = name;
|
|
dp = ginode(parent);
|
|
if (dp->di_size % DIRBLKSIZ) {
|
|
dp->di_size = roundup(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
|
|
*/
|
|
expanddir(dp, name)
|
|
register struct dinode *dp;
|
|
char *name;
|
|
{
|
|
daddr_t lastbn, newblk;
|
|
register struct bufarea *bp;
|
|
char *cp, firstblk[DIRBLKSIZ];
|
|
|
|
lastbn = lblkno(&sblock, dp->di_size);
|
|
if (lastbn >= NDADDR - 1 || dp->di_db[lastbn] == 0 || dp->di_size == 0)
|
|
return (0);
|
|
if ((newblk = allocblk(sblock.fs_frag)) == 0)
|
|
return (0);
|
|
dp->di_db[lastbn + 1] = dp->di_db[lastbn];
|
|
dp->di_db[lastbn] = newblk;
|
|
dp->di_size += sblock.fs_bsize;
|
|
dp->di_blocks += btodb(sblock.fs_bsize);
|
|
bp = getdirblk(dp->di_db[lastbn + 1],
|
|
(long)dblksize(&sblock, dp, lastbn + 1));
|
|
if (bp->b_errs)
|
|
goto bad;
|
|
bcopy(bp->b_un.b_buf, firstblk, DIRBLKSIZ);
|
|
bp = getdirblk(newblk, sblock.fs_bsize);
|
|
if (bp->b_errs)
|
|
goto bad;
|
|
bcopy(firstblk, bp->b_un.b_buf, DIRBLKSIZ);
|
|
for (cp = &bp->b_un.b_buf[DIRBLKSIZ];
|
|
cp < &bp->b_un.b_buf[sblock.fs_bsize];
|
|
cp += DIRBLKSIZ)
|
|
bcopy((char *)&emptydir, cp, sizeof emptydir);
|
|
dirty(bp);
|
|
bp = getdirblk(dp->di_db[lastbn + 1],
|
|
(long)dblksize(&sblock, dp, lastbn + 1));
|
|
if (bp->b_errs)
|
|
goto bad;
|
|
bcopy((char *)&emptydir, bp->b_un.b_buf, 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:
|
|
dp->di_db[lastbn] = dp->di_db[lastbn + 1];
|
|
dp->di_db[lastbn + 1] = 0;
|
|
dp->di_size -= sblock.fs_bsize;
|
|
dp->di_blocks -= btodb(sblock.fs_bsize);
|
|
freeblk(newblk, sblock.fs_frag);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* allocate a new directory
|
|
*/
|
|
allocdir(parent, request, mode)
|
|
ino_t parent, request;
|
|
int mode;
|
|
{
|
|
ino_t ino;
|
|
char *cp;
|
|
struct dinode *dp;
|
|
register struct bufarea *bp;
|
|
|
|
ino = allocino(request, IFDIR|mode);
|
|
dirhead.dot_ino = ino;
|
|
dirhead.dotdot_ino = parent;
|
|
dp = ginode(ino);
|
|
bp = getdirblk(dp->di_db[0], sblock.fs_fsize);
|
|
if (bp->b_errs) {
|
|
freeino(ino);
|
|
return (0);
|
|
}
|
|
bcopy((char *)&dirhead, bp->b_un.b_buf, sizeof dirhead);
|
|
for (cp = &bp->b_un.b_buf[DIRBLKSIZ];
|
|
cp < &bp->b_un.b_buf[sblock.fs_fsize];
|
|
cp += DIRBLKSIZ)
|
|
bcopy((char *)&emptydir, cp, sizeof emptydir);
|
|
dirty(bp);
|
|
dp->di_nlink = 2;
|
|
inodirty();
|
|
if (ino == ROOTINO) {
|
|
lncntp[ino] = dp->di_nlink;
|
|
cacheino(dp, ino);
|
|
return(ino);
|
|
}
|
|
if (statemap[parent] != DSTATE && statemap[parent] != DFOUND) {
|
|
freeino(ino);
|
|
return (0);
|
|
}
|
|
cacheino(dp, ino);
|
|
statemap[ino] = statemap[parent];
|
|
if (statemap[ino] == DSTATE) {
|
|
lncntp[ino] = dp->di_nlink;
|
|
lncntp[parent]++;
|
|
}
|
|
dp = ginode(parent);
|
|
dp->di_nlink++;
|
|
inodirty();
|
|
return (ino);
|
|
}
|
|
|
|
/*
|
|
* free a directory inode
|
|
*/
|
|
freedir(ino, parent)
|
|
ino_t ino, parent;
|
|
{
|
|
struct dinode *dp;
|
|
|
|
if (ino != parent) {
|
|
dp = ginode(parent);
|
|
dp->di_nlink--;
|
|
inodirty();
|
|
}
|
|
freeino(ino);
|
|
}
|
|
|
|
/*
|
|
* generate a temporary name for the lost+found directory.
|
|
*/
|
|
lftempname(bufp, ino)
|
|
char *bufp;
|
|
ino_t ino;
|
|
{
|
|
register ino_t in;
|
|
register 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.
|
|
*/
|
|
struct bufarea *
|
|
getdirblk(blkno, size)
|
|
daddr_t blkno;
|
|
long size;
|
|
{
|
|
|
|
if (pdirbp != 0)
|
|
pdirbp->b_flags &= ~B_INUSE;
|
|
pdirbp = getdatablk(blkno, size);
|
|
return (pdirbp);
|
|
}
|