- free(lncntp);
-}
-
-/* VARARGS1 */
-error(s1, s2, s3, s4)
- char *s1;
-{
-
- printf(s1, s2, s3, s4);
-}
-
-/* VARARGS1 */
-errexit(s1, s2, s3, s4)
- char *s1;
-{
- error(s1, s2, s3, s4);
- exit(8);
-}
-
-/*
- * An inconsistency occured which shouldn't during normal operations.
- * Die if preening, otw just printf.
- */
-/* VARARGS1 */
-pfatal(s, a1, a2, a3)
- char *s;
-{
-
- if (preen) {
- printf("%s: ", devname);
- printf(s, a1, a2, a3);
- printf("\n");
- preendie();
- }
- printf(s, a1, a2, a3);
-}
-
-preendie()
-{
-
- printf("%s: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.\n", devname);
- exit(8);
-}
-
-/*
- * Pwarn is like printf when not preening,
- * or a warning (preceded by filename) when preening.
- */
-/* VARARGS1 */
-pwarn(s, a1, a2, a3, a4, a5, a6)
- char *s;
-{
-
- if (preen)
- printf("%s: ", devname);
- printf(s, a1, a2, a3, a4, a5, a6);
-}
-
-ckinode(dp, flg)
- DINODE *dp;
- register flg;
-{
- register daddr_t *ap;
- register ret;
- int (*func)(), n, ndb, size, offset;
- ino_t number = inum;
- DINODE dino;
-
- if (SPECIAL)
- return (KEEPON);
- dino = *dp;
- func = (flg == ADDR) ? pfunc : dirscan;
- ndb = howmany(dino.di_size, sblock.fs_bsize);
- for (ap = &dino.di_db[0]; ap < &dino.di_db[NDADDR]; ap++) {
- if (--ndb == 0 && (offset = blkoff(&sblock, dino.di_size)) != 0)
- size = numfrags(&sblock, fragroundup(&sblock, offset));
- else
- size = sblock.fs_frag;
- dnum = number;
- if (*ap && (ret = (*func)(*ap, size)) & STOP)
- return (ret);
- }
- for (ap = &dino.di_ib[0], n = 1; n <= 2; ap++, n++) {
- dnum = number;
- if (*ap && (ret = iblock(*ap, n, flg, dino.di_size - sblock.fs_bsize * NDADDR)) & STOP)
- return (ret);
- }
- return (KEEPON);
-}
-
-iblock(blk, ilevel, flg, isize)
- daddr_t blk;
- register ilevel;
- int isize;
-{
- register daddr_t *ap;
- register daddr_t *aplim;
- register int i, n;
- int (*func)(), nif;
- BUFAREA ib;
-
- if (flg == ADDR) {
- func = pfunc;
- if (((n = (*func)(blk, sblock.fs_frag)) & KEEPON) == 0)
- return (n);
- } else
- func = dirscan;
- if (outrange(blk)) /* protect thyself */
- return (SKIP);
- initbarea(&ib);
- if (getblk(&ib, blk, sblock.fs_bsize) == NULL)
- return (SKIP);
- ilevel--;
- if (ilevel == 0) {
- nif = lblkno(&sblock, isize) + 1;
- } else /* ilevel == 1 */ {
- nif = isize / (sblock.fs_bsize * NINDIR(&sblock)) + 1;
- }
- if (nif > NINDIR(&sblock))
- nif = NINDIR(&sblock);
- aplim = & ib.b_un.b_indir[nif];
- for (ap = ib.b_un.b_indir, i = 1; ap < aplim; ap++, i++)
- if (*ap) {
- if (ilevel > 0)
- n = iblock(*ap, ilevel, flg, isize - i * NINDIR(&sblock) * sblock.fs_bsize);
- else
- n = (*func)(*ap, sblock.fs_frag);
- if (n & STOP)
- return (n);
- }
- return (KEEPON);
-}
-
-pass1(blk, size)
- daddr_t blk;
- int size;
-{
- register daddr_t *dlp;
- int res = KEEPON;
-
- for (; size > 0; blk++, size--) {
- if (outrange(blk)) {
- blkerr("BAD", blk);
- if (++badblk >= MAXBAD) {
- printf("EXCESSIVE BAD BLKS I=%u", inum);
- if (reply("CONTINUE") == 0)
- errexit("");
- return (STOP);
- }
- res = SKIP;
- } else if (getbmap(blk)) {
- blkerr("DUP", blk);
- if (++dupblk >= MAXDUP) {
- printf("EXCESSIVE DUP BLKS I=%u", inum);
- if (reply("CONTINUE") == 0)
- errexit("");
- return (STOP);
- }
- if (enddup >= &duplist[DUPTBLSIZE]) {
- printf("DUP TABLE OVERFLOW.");
- if (reply("CONTINUE") == 0)
- errexit("");
- return (STOP);
- }
- for (dlp = duplist; dlp < muldup; dlp++)
- if (*dlp == blk) {
- *enddup++ = blk;
- break;
- }
- if (dlp >= muldup) {
- *enddup++ = *muldup;
- *muldup++ = blk;
- }
- } else {
- n_blks++;
- setbmap(blk);
- }
- filsize++;
- }
- return (res);
-}
-
-pass1b(blk, size)
- daddr_t blk;
- int size;
-{
- register daddr_t *dlp;
- int res = KEEPON;
-
- for (; size > 0; blk++, size--) {
- if (outrange(blk))
- res = SKIP;
- for (dlp = duplist; dlp < muldup; dlp++)
- if (*dlp == blk) {
- blkerr("DUP", blk);
- *dlp = *--muldup;
- *muldup = blk;
- if (muldup == duplist)
- return (STOP);
- }
- }
- return (res);
-}
-
-pass2(dirp)
- register DIRECT *dirp;
-{
- register char *p;
- register n;
- DINODE *dp;
-
- if ((inum = dirp->d_ino) == 0)
- return (KEEPON);
- thisname = pathp;
- for (p = dirp->d_name; p < &dirp->d_name[MAXNAMLEN]; )
- if ((*pathp++ = *p++) == 0) {
- --pathp;
- break;
- }
- *pathp = 0;
- n = 0;
- if (inum > imax || inum <= 0)
- n = direrr("I OUT OF RANGE");
- else {
-again:
- switch (getstate()) {
- case USTATE:
- n = direrr("UNALLOCATED");
- break;
-
- case CLEAR:
- if ((n = direrr("DUP/BAD")) == 1)
- break;
- if ((dp = ginode()) == NULL)
- break;
- setstate(DIRCT ? DSTATE : FSTATE);
- goto again;
-
- case FSTATE:
- declncnt();
- break;
-
- case DSTATE:
- declncnt();
- descend();
- break;
- }
- }
- pathp = thisname;
- if (n == 0)
- return (KEEPON);
- dirp->d_ino = 0;
- return (KEEPON|ALTERD);
-}
-
-pass4(blk, size)
- daddr_t blk;
-{
- register daddr_t *dlp;
- int res = KEEPON;
-
- for (; size > 0; blk++, size--) {
- if (outrange(blk))
- res = SKIP;
- else if (getbmap(blk)) {
- for (dlp = duplist; dlp < enddup; dlp++)
- if (*dlp == blk) {
- *dlp = *--enddup;
- return (KEEPON);
- }
- clrbmap(blk);
- n_blks--;
- }
- }
- return (res);
-}
-
-pass5(blk, size)
- daddr_t blk;
- int size;
-{
- int res = KEEPON;
-
- for (; size > 0; blk++, size--) {
- if (outrange(blk)) {
- fixcg = 1;
- if (preen)
- pfatal("BAD BLOCKS IN BIT MAPS.");
- if (++badblk >= MAXBAD) {
- printf("EXCESSIVE BAD BLKS IN BIT MAPS.");
- if (reply("CONTINUE") == 0)
- errexit("");
- return (STOP);
- }
- } else if (getfmap(blk)) {
- fixcg = 1;
- if (++dupblk >= DUPTBLSIZE) {
- printf("EXCESSIVE DUP BLKS IN BIT MAPS.");
- if (reply("CONTINUE") == 0)
- errexit("");
- return (STOP);
- }
- } else {
- n_ffree++;
- setfmap(blk);
- }
- }
- return (res);
-}
-
-outrange(blk)
- daddr_t blk;
-{
- register int c;
-
- c = dtog(&sblock, blk);
- if ((unsigned)blk >= fmax) {
- return (1);
- }
- return (0);
-}
-
-blkerr(s, blk)
- daddr_t blk;
- char *s;
-{
- pfatal("%ld %s I=%u", blk, s, inum);
- printf("\n");
- setstate(CLEAR); /* mark for possible clearing */
-}
-
-descend()
-{
- register DINODE *dp;
- register char *savname;
- off_t savsize;
-
- setstate(FSTATE);
- if ((dp = ginode()) == NULL)
- return;
- savname = thisname;
- *pathp++ = '/';
- savsize = filsize;
- filsize = dp->di_size;
- ckinode(dp, DATA);
- thisname = savname;
- *--pathp = 0;
- filsize = savsize;
-}
-
-struct dirstuff {
- int loc;
- int blkno;
- int blksiz;
- ino_t number;
- enum {DONTKNOW, NOFIX, FIX} fix;
-};
-
-dirscan(blk, nf)
- daddr_t blk;
- int nf;
-{
- register DIRECT *dp;
- struct dirstuff dirp;
- int blksiz, dsize, n;
- char dbuf[DIRBLKSIZ];
-
- if (outrange(blk)) {
- filsize -= sblock.fs_bsize;
- return (SKIP);
- }
- blksiz = nf * sblock.fs_fsize;
- dirp.loc = 0;
- dirp.blkno = blk;
- dirp.blksiz = blksiz;
- if (dirp.number != dnum) {
- dirp.number = dnum;
- dirp.fix = DONTKNOW;
- }
- for (dp = readdir(&dirp); dp != NULL; dp = readdir(&dirp)) {
- dsize = dp->d_reclen;
- copy(dp, dbuf, dsize);
- if ((n = (*pfunc)(dbuf)) & ALTERD) {
- if (getblk(&fileblk, blk, blksiz) != NULL) {
- copy(dbuf, dp, dsize);
- dirty(&fileblk);
- sbdirty();
- } else
- n &= ~ALTERD;
- }
- if (n & STOP)
- return (n);
- }
- return (filsize > 0 ? KEEPON : STOP);
-}
-
-/*
- * get next entry in a directory.
- */
-DIRECT *
-readdir(dirp)
- register struct dirstuff *dirp;
-{
- register DIRECT *dp, *ndp;
- long size;
-
- if (getblk(&fileblk, dirp->blkno, dirp->blksiz) == NULL) {
- filsize -= dirp->blksiz - dirp->loc;
- return NULL;
- }
- while (dirp->loc % DIRBLKSIZ == 0 && filsize > 0 &&
- dirp->loc < dirp->blksiz) {
- dp = (DIRECT *)(dirblk.b_buf + dirp->loc);
- if (dp->d_ino < imax &&
- dp->d_namlen <= MAXNAMLEN && dp->d_namlen >= 0 &&
- dp->d_reclen > 0 && dp->d_reclen <= DIRBLKSIZ)
- break;
- dirp->loc += DIRBLKSIZ;
- filsize -= DIRBLKSIZ;
- if (dirp->fix == DONTKNOW) {
- pwarn("DIRECTORY %D CORRUPTED", dirp->number);
- dirp->fix = NOFIX;
- if (preen) {
- printf(" (SALVAGED)\n");
- dirp->fix = FIX;
- } else if (reply("SALVAGE") != 0)
- dirp->fix = FIX;
- }
- if (dirp->fix != FIX)
- continue;
- dp->d_reclen = DIRBLKSIZ;
- dp->d_ino = 0;
- dp->d_namlen = 0;
- dirty(&fileblk);
- }
- if (filsize <= 0 || dirp->loc >= dirp->blksiz)
- return NULL;
- dp = (DIRECT *)(dirblk.b_buf + dirp->loc);
- dirp->loc += dp->d_reclen;
- filsize -= dp->d_reclen;
- ndp = (DIRECT *)(dirblk.b_buf + dirp->loc);
- if (dirp->loc < dirp->blksiz && filsize > 0 &&
- (ndp->d_ino >= imax ||
- ndp->d_namlen > MAXNAMLEN || ndp->d_namlen < 0 ||
- ndp->d_reclen <= 0 ||
- ndp->d_reclen > DIRBLKSIZ - (dirp->loc % DIRBLKSIZ))) {
- size = DIRBLKSIZ - (dirp->loc % DIRBLKSIZ);
- dirp->loc += size;
- filsize -= size;
- if (dirp->fix == DONTKNOW) {
- pwarn("DIRECTORY %D CORRUPTED", dirp->number);
- dirp->fix = NOFIX;
- if (preen) {
- printf(" (SALVAGED)\n");
- dirp->fix = FIX;
- } else if (reply("SALVAGE") != 0)
- dirp->fix = FIX;
- }
- if (dirp->fix == FIX) {
- dp->d_reclen += size;
- dirty(&fileblk);
- }
- }
- return (dp);
-}
-
-direrr(s)
- char *s;
-{
- register DINODE *dp;
-
- pwarn("%s ", s);
- pinode();
- printf("\n");
- if ((dp = ginode()) != NULL && ftypeok(dp))
- pfatal("%s=%s", DIRCT?"DIR":"FILE", pathname);
- else
- pfatal("NAME=%s", pathname);
- return (reply("REMOVE"));
-}
-
-adjust(lcnt)
- register short lcnt;
-{
- register DINODE *dp;
-
- if ((dp = ginode()) == NULL)
- return;
- if (dp->di_nlink == lcnt) {
- if (linkup() == 0)
- clri("UNREF", 0);
- }
- else {
- pwarn("LINK COUNT %s",
- (lfdir==inum)?lfname:(DIRCT?"DIR":"FILE"));
- pinode();
- printf(" COUNT %d SHOULD BE %d",
- dp->di_nlink, dp->di_nlink-lcnt);
- if (preen) {
- if (lcnt < 0) {
- printf("\n");
- preendie();
- }
- printf(" (ADJUSTED)\n");
- }
- if (preen || reply("ADJUST") == 1) {
- dp->di_nlink -= lcnt;
- inodirty();
- }
- }
-}
-
-clri(s, flg)
- char *s;
-{
- register DINODE *dp;
-
- if ((dp = ginode()) == NULL)
- return;
- if (flg == 1) {
- pwarn("%s %s", s, DIRCT?"DIR":"FILE");
- pinode();
- }
- if (preen || reply("CLEAR") == 1) {
- if (preen)
- printf(" (CLEARED)\n");
- n_files--;
- pfunc = pass4;
- ckinode(dp, ADDR);
- zapino(dp);
- setstate(USTATE);
- inodirty();
- inosumbad++;
- }
-}
-
-setup(dev)
- char *dev;
-{
- dev_t rootdev;
- struct stat statb;
- int super = bflag ? bflag : SBLOCK;
- int i, j, size;
- int c, d, cgd;
-
- bflag = 0;
- if (stat("/", &statb) < 0)
- errexit("Can't stat root\n");
- rootdev = statb.st_dev;
- if (stat(dev, &statb) < 0) {
- error("Can't stat %s\n", dev);
- return (0);
- }
- rawflg = 0;
- if ((statb.st_mode & S_IFMT) == S_IFBLK)
- ;
- else if ((statb.st_mode & S_IFMT) == S_IFCHR)
- rawflg++;
- else {
- if (reply("file is not a block or character device; OK") == 0)
- return (0);
- }
- if (rootdev == statb.st_rdev)
- hotroot++;
- if ((dfile.rfdes = open(dev, 0)) < 0) {
- error("Can't open %s\n", dev);
- return (0);
- }
- if (preen == 0)
- printf("** %s", dev);
- if (nflag || (dfile.wfdes = open(dev, 1)) < 0) {
- dfile.wfdes = -1;
- if (preen)
- pfatal("NO WRITE ACCESS");
- printf(" (NO WRITE)");
- }
- if (preen == 0)
- printf("\n");
- fixcg = 0; inosumbad = 0; offsumbad = 0; frsumbad = 0; sbsumbad = 0;
- dfile.mod = 0;
- n_files = n_blks = n_ffree = n_bfree = 0;
- muldup = enddup = &duplist[0];
- badlnp = &badlncnt[0];
- lfdir = 0;
- rplyflag = 0;
- initbarea(&sblk);
- initbarea(&fileblk);
- initbarea(&inoblk);
- initbarea(&cgblk);
- /*
- * Read in the super block and its summary info.
- */
- if (bread(&dfile, &sblock, super, SBSIZE) == 0)
- return (0);
- sblk.b_bno = super;
- sblk.b_size = SBSIZE;
- /*
- * run a few consistency checks of the super block
- */
- if (sblock.fs_magic != FS_MAGIC)
- { badsb("MAGIC NUMBER WRONG"); return (0); }
- if (sblock.fs_ncg < 1)
- { badsb("NCG OUT OF RANGE"); return (0); }
- if (sblock.fs_cpg < 1 || sblock.fs_cpg > MAXCPG)
- { badsb("CPG OUT OF RANGE"); return (0); }
- if (sblock.fs_nsect < 1)
- { badsb("NSECT < 1"); return (0); }
- if (sblock.fs_ntrak < 1)
- { badsb("NTRAK < 1"); return (0); }
- if (sblock.fs_spc != sblock.fs_nsect * sblock.fs_ntrak)
- { badsb("SPC DOES NOT JIVE w/NTRAK*NSECT"); return (0); }
- if (sblock.fs_ipg % INOPB(&sblock))
- { badsb("INODES NOT MULTIPLE OF A BLOCK"); return (0); }
- if (cgdmin(&sblock, 0) >= sblock.fs_cpg * sblock.fs_spc / NSPF(&sblock))
- { badsb("IMPLIES MORE INODE THAN DATA BLOCKS"); return (0); }
- if (sblock.fs_ncg * sblock.fs_cpg < sblock.fs_ncyl ||
- (sblock.fs_ncg - 1) * sblock.fs_cpg >= sblock.fs_ncyl)
- { badsb("NCYL DOES NOT JIVE WITH NCG*CPG"); return (0); }
- if (sblock.fs_fpg != sblock.fs_cpg * sblock.fs_spc / NSPF(&sblock))
- { badsb("FPG DOES NOT JIVE WITH CPG & SPC"); return (0); }
- if (sblock.fs_size * NSPF(&sblock) <=
- (sblock.fs_ncyl - 1) * sblock.fs_spc)
- { badsb("SIZE PREPOSTEROUSLY SMALL"); return (0); }
- if (sblock.fs_size * NSPF(&sblock) > sblock.fs_ncyl * sblock.fs_spc)
- { badsb("SIZE PREPOSTEROUSLY LARGE"); return (0); }
- /* rest we COULD repair... */
- if (sblock.fs_cgsize != fragroundup(&sblock,
- sizeof(struct cg) + howmany(sblock.fs_fpg, NBBY)))
- { badsb("CGSIZE INCORRECT"); return (0); }
- if (sblock.fs_cssize !=
- fragroundup(&sblock, sblock.fs_ncg * sizeof(struct csum)))
- { badsb("CSSIZE INCORRECT"); return (0); }
- fmax = sblock.fs_size;
- imax = sblock.fs_ncg * sblock.fs_ipg;
- n_bad = cgsblock(&sblock, 0); /* boot block plus dedicated sblock */
- /*
- * read in the summary info.
- */
- for (i = 0, j = 0; i < sblock.fs_cssize; i += sblock.fs_bsize, j++) {
- size = sblock.fs_cssize - i < sblock.fs_bsize ?
- sblock.fs_cssize - i : sblock.fs_bsize;
- sblock.fs_csp[j] = (struct csum *)calloc(1, size);
- bread(&dfile, (char *)sblock.fs_csp[j],
- fsbtodb(&sblock, sblock.fs_csaddr + j * sblock.fs_frag),
- size);
- }
- /*
- * allocate and initialize the necessary maps
- */
- bmapsz = roundup(howmany(fmax, NBBY), sizeof(short));
- blockmap = (char *)calloc(bmapsz, sizeof (char));
- if (blockmap == NULL) {
- printf("cannot alloc %d bytes for blockmap\n", bmapsz);
- exit(1);
- }
- freemap = (char *)calloc(bmapsz, sizeof (char));
- if (freemap == NULL) {
- printf("cannot alloc %d bytes for freemap\n", bmapsz);
- exit(1);
- }
- statemap = (char *)calloc(imax+1, sizeof(char));
- if (statemap == NULL) {
- printf("cannot alloc %d bytes for statemap\n", imax + 1);
- exit(1);
- }
- lncntp = (short *)calloc(imax+1, sizeof(short));
- if (lncntp == NULL) {
- printf("cannot alloc %d bytes for lncntp\n",
- (imax + 1) * sizeof(short));
- exit(1);
- }
- for (c = 0; c < sblock.fs_ncg; c++) {
- cgd = cgdmin(&sblock, c);
- if (c == 0) {
- d = cgbase(&sblock, c);
- cgd += howmany(sblock.fs_cssize, sblock.fs_fsize);
- } else
- d = cgsblock(&sblock, c);
- for (; d < cgd; d++)
- setbmap(d);
- }
-
- startinum = imax + 1;
- return (1);
-
-badsb:
- ckfini();
- return (0);
-}
-
-badsb(s)
- char *s;
-{
-
- if (preen)
- printf("%s: ", devname);
- printf("BAD SUPER BLOCK: %s\n", s);
- pwarn("USE -b OPTION TO FSCK TO SPECIFY LOCATION OF AN ALTERNATE\n");
- pfatal("SUPER-BLOCK TO SUPPLY NEEDED INFORMATION; SEE fsck(8).\n");
-}
-
-DINODE *
-ginode()
-{
- daddr_t iblk;
-
- if (inum < ROOTINO || inum > imax) {
- if (debug && (inum < 0 || inum > imax))
- printf("inum out of range (%d)\n", inum);
- return (NULL);
- }
- if (inum < startinum || inum >= startinum + INOPB(&sblock)) {
- iblk = itod(&sblock, inum);
- if (getblk(&inoblk, iblk, sblock.fs_bsize) == NULL) {
- return (NULL);
- }
- startinum = (inum / INOPB(&sblock)) * INOPB(&sblock);
- }
- return (&inoblk.b_un.b_dinode[inum % INOPB(&sblock)]);
-}
-
-ftypeok(dp)
- DINODE *dp;
-{
- switch (dp->di_mode & IFMT) {
-
- case IFDIR:
- case IFREG:
- case IFBLK:
- case IFCHR:
- case IFLNK:
- return (1);
-
- default:
- return (0);
- }
-}
-
-reply(s)
- char *s;
-{
- char line[80];
-
- if (preen)
- pfatal("INTERNAL ERROR: GOT TO reply()");
- rplyflag = 1;
- printf("\n%s? ", s);
- if (nflag || dfile.wfdes < 0) {
- printf(" no\n\n");
- return (0);
- }
- if (yflag) {
- printf(" yes\n\n");
- return (1);
- }
- if (getline(stdin, line, sizeof(line)) == EOF)
- errexit("\n");
- printf("\n");
- if (line[0] == 'y' || line[0] == 'Y')
- return (1);
- else
- return (0);
-}
-
-getline(fp, loc, maxlen)
- FILE *fp;
- char *loc;
-{
- register n;
- register char *p, *lastloc;
-
- p = loc;
- lastloc = &p[maxlen-1];
- while ((n = getc(fp)) != '\n') {
- if (n == EOF)
- return (EOF);
- if (!isspace(n) && p < lastloc)
- *p++ = n;
- }
- *p = 0;
- return (p - loc);
-}
-
-BUFAREA *
-getblk(bp, blk, size)
- daddr_t blk;
- register BUFAREA *bp;
- int size;
-{
- register struct filecntl *fcp;
- daddr_t dblk;
-
- fcp = &dfile;
- dblk = fsbtodb(&sblock, blk);
- if (bp->b_bno == dblk)
- return (bp);
- flush(fcp, bp);
- if (bread(fcp, bp->b_un.b_buf, dblk, size) != 0) {
- bp->b_bno = dblk;
- bp->b_size = size;
- return (bp);
- }
- bp->b_bno = (daddr_t)-1;
- return (NULL);
-}
-
-flush(fcp, bp)
- struct filecntl *fcp;
- register BUFAREA *bp;
-{
-
- if (bp->b_dirty)
- bwrite(fcp, bp->b_un.b_buf, bp->b_bno, bp->b_size);
- bp->b_dirty = 0;
-}
-
-rwerr(s, blk)
- char *s;
- daddr_t blk;
-{
-
- if (preen == 0)
- printf("\n");
- pfatal("CANNOT %s: BLK %ld", s, blk);
- if (reply("CONTINUE") == 0)
- errexit("Program terminated\n");
-}
-
-ckfini()
-{
-
- flush(&dfile, &fileblk);
- flush(&dfile, &sblk);
- if (sblk.b_bno != SBLOCK) {
- sblk.b_bno = SBLOCK;
- sbdirty();
- flush(&dfile, &sblk);
- }
- flush(&dfile, &inoblk);
- close(dfile.rfdes);
- close(dfile.wfdes);
-}
-
-pinode()
-{
- register DINODE *dp;
- register char *p;
- char uidbuf[BUFSIZ];
- char *ctime();
-
- printf(" I=%u ", inum);
- if ((dp = ginode()) == NULL)
- return;
- printf(" OWNER=");
- if (getpw((int)dp->di_uid, uidbuf) == 0) {
- for (p = uidbuf; *p != ':'; p++);
- *p = 0;
- printf("%s ", uidbuf);
- }
- else {
- printf("%d ", dp->di_uid);
- }
- printf("MODE=%o\n", dp->di_mode);
- if (preen)
- printf("%s: ", devname);
- printf("SIZE=%ld ", dp->di_size);
- p = ctime(&dp->di_mtime);
- printf("MTIME=%12.12s %4.4s ", p+4, p+20);
-}
-
-copy(fp, tp, size)
- register char *tp, *fp;
- unsigned size;
-{
-
- while (size--)
- *tp++ = *fp++;
-}
-
-makecg()
-{
- int c, blk;
- daddr_t dbase, d, dlower, dupper, dmax;
- long i, j, s;
- register struct csum *cs;
- register DINODE *dp;
-
- sblock.fs_cstotal.cs_nbfree = 0;
- sblock.fs_cstotal.cs_nffree = 0;
- sblock.fs_cstotal.cs_nifree = 0;
- sblock.fs_cstotal.cs_ndir = 0;
- for (c = 0; c < sblock.fs_ncg; c++) {
- dbase = cgbase(&sblock, c);
- dmax = dbase + sblock.fs_fpg;
- if (dmax > sblock.fs_size) {
- for ( ; dmax >= sblock.fs_size; dmax--)
- clrbit(cgrp.cg_free, dmax - dbase);
- dmax++;
- }
- dlower = cgsblock(&sblock, c) - dbase;
- dupper = cgdmin(&sblock, c) - dbase;
- cs = &sblock.fs_cs(&sblock, c);
- cgrp.cg_time = time(0);
- cgrp.cg_magic = CG_MAGIC;
- cgrp.cg_cgx = c;
- cgrp.cg_ncyl = sblock.fs_cpg;
- cgrp.cg_niblk = sblock.fs_ipg;
- cgrp.cg_ndblk = dmax - dbase;
- cgrp.cg_cs.cs_ndir = 0;
- cgrp.cg_cs.cs_nffree = 0;
- cgrp.cg_cs.cs_nbfree = 0;
- cgrp.cg_cs.cs_nifree = 0;
- cgrp.cg_rotor = 0;
- cgrp.cg_frotor = 0;
- cgrp.cg_irotor = 0;
- for (i = 0; i < sblock.fs_frag; i++)
- cgrp.cg_frsum[i] = 0;
- inum = sblock.fs_ipg * c;
- for (i = 0; i < sblock.fs_ipg; inum++, i++) {
- cgrp.cg_cs.cs_nifree++;
- clrbit(cgrp.cg_iused, i);
- dp = ginode();
- if (dp == NULL)
- continue;
- if (ALLOC) {
- if (DIRCT)
- cgrp.cg_cs.cs_ndir++;
- cgrp.cg_cs.cs_nifree--;
- setbit(cgrp.cg_iused, i);
- continue;
- }
- }
- while (i < MAXIPG) {
- clrbit(cgrp.cg_iused, i);
- i++;
- }
- if (c == 0)
- for (i = 0; i < ROOTINO; i++) {
- setbit(cgrp.cg_iused, i);
- cgrp.cg_cs.cs_nifree--;
- }
- for (s = 0; s < MAXCPG; s++) {
- cgrp.cg_btot[s] = 0;
- for (i = 0; i < NRPOS; i++)
- cgrp.cg_b[s][i] = 0;
- }
- if (c == 0) {
- dupper += howmany(sblock.fs_cssize, sblock.fs_fsize);
- }
- for (d = dlower; d < dupper; d++)
- clrbit(cgrp.cg_free, d);
- for (d = 0; (d + sblock.fs_frag) <= dmax - dbase;
- d += sblock.fs_frag) {
- j = 0;
- for (i = 0; i < sblock.fs_frag; i++) {
- if (!getbmap(dbase + d + i)) {
- setbit(cgrp.cg_free, d + i);
- j++;
- } else
- clrbit(cgrp.cg_free, d+i);
- }
- if (j == sblock.fs_frag) {
- cgrp.cg_cs.cs_nbfree++;
- cgrp.cg_btot[cbtocylno(&sblock, d)]++;
- cgrp.cg_b[cbtocylno(&sblock, d)]
- [cbtorpos(&sblock, d)]++;
- } else if (j > 0) {
- cgrp.cg_cs.cs_nffree += j;
- blk = blkmap(&sblock, cgrp.cg_free, d);
- fragacct(&sblock, blk, cgrp.cg_frsum, 1);
- }
- }
- for (j = d; d < dmax - dbase; d++) {
- if (!getbmap(dbase + d)) {
- setbit(cgrp.cg_free, d);
- cgrp.cg_cs.cs_nffree++;
- } else
- clrbit(cgrp.cg_free, d);
- }
- if (j != d) {
- blk = blkmap(&sblock, cgrp.cg_free, j);
- fragacct(&sblock, blk, cgrp.cg_frsum, 1);
- }
- for (; d < MAXBPG(&sblock); d++)
- clrbit(cgrp.cg_free, d);
- sblock.fs_cstotal.cs_nffree += cgrp.cg_cs.cs_nffree;
- sblock.fs_cstotal.cs_nbfree += cgrp.cg_cs.cs_nbfree;
- sblock.fs_cstotal.cs_nifree += cgrp.cg_cs.cs_nifree;
- sblock.fs_cstotal.cs_ndir += cgrp.cg_cs.cs_ndir;
- *cs = cgrp.cg_cs;
- bwrite(&dfile, &cgrp, fsbtodb(&sblock, cgtod(&sblock, c)),
- sblock.fs_cgsize);
- }
- for (i = 0, j = 0; i < sblock.fs_cssize; i += sblock.fs_bsize, j++) {
- bwrite(&dfile, (char *)sblock.fs_csp[j],
- fsbtodb(&sblock, sblock.fs_csaddr + j * sblock.fs_frag),
- sblock.fs_cssize - i < sblock.fs_bsize ?
- sblock.fs_cssize - i : sblock.fs_bsize);
- }
- sblock.fs_ronly = 0;
- sblock.fs_fmod = 0;
- sbdirty();
-}
-
-/*
- * update the frsum fields to reflect addition or deletion
- * of some frags
- */
-fragacct(fs, fragmap, fraglist, cnt)
- struct fs *fs;
- int fragmap;
- long fraglist[];
- int cnt;
-{
- int inblk;
- register int field, subfield;
- register int siz, pos;
-
- inblk = (int)(fragtbl[fs->fs_frag][fragmap] << 1);
- fragmap <<= 1;
- for (siz = 1; siz < fs->fs_frag; siz++) {
- if ((inblk & (1 << (siz + (fs->fs_frag % NBBY)))) == 0)
- continue;
- field = around[siz];
- subfield = inside[siz];
- for (pos = siz; pos <= fs->fs_frag; pos++) {
- if ((fragmap & field) == subfield) {
- fraglist[siz] += cnt;
- pos += siz;
- field <<= siz;
- subfield <<= siz;
- }
- field <<= 1;
- subfield <<= 1;
- }
- }
-}
-
-findino(dirp)
- register DIRECT *dirp;
-{
- if (dirp->d_ino == 0)
- return (KEEPON);
- if (!strcmp(dirp->d_name, srchname)) {
- if (dirp->d_ino >= ROOTINO && dirp->d_ino <= imax)
- parentdir = dirp->d_ino;
- return (STOP);
- }
- return (KEEPON);
-}
-
-mkentry(dirp)
- register DIRECT *dirp;
-{
- register ino_t in;
- register char *p;
- DIRECT newent;
- int newlen, oldlen;
-
- newent.d_namlen = 11;
- 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 = orphan;
- dirp->d_reclen = newent.d_reclen;
- p = &dirp->d_name[2];
- for (in = imax; in > 0; in /= 10)
- p++;
- *--p = 0;
- dirp->d_namlen = p - dirp->d_name;
- in = orphan;
- while (p > dirp->d_name) {
- *--p = (in % 10) + '0';
- in /= 10;
- }
- *p = '#';
- return (ALTERD|STOP);
-}
-
-chgdd(dirp)
- register DIRECT *dirp;
-{
- if (dirp->d_name[0] == '.' && dirp->d_name[1] == '.' &&
- dirp->d_name[2] == 0) {
- dirp->d_ino = lfdir;
- return (ALTERD|STOP);
- }
- return (KEEPON);
-}
-
-linkup()
-{
- register DINODE *dp;
- register lostdir;
- register ino_t pdir;
-
- if ((dp = ginode()) == NULL)
- return (0);
- lostdir = DIRCT;
- pdir = parentdir;
- pwarn("UNREF %s ", lostdir ? "DIR" : "FILE");
- pinode();
- if (preen && dp->di_size == 0)
- return (0);
- if (preen)
- printf(" (RECONNECTED)\n");
- else
- if (reply("RECONNECT") == 0)
- return (0);
- orphan = inum;
- if (lfdir == 0) {
- inum = ROOTINO;
- if ((dp = ginode()) == NULL) {
- inum = orphan;
- return (0);
- }
- pfunc = findino;
- srchname = lfname;
- filsize = dp->di_size;
- parentdir = 0;
- ckinode(dp, DATA);
- inum = orphan;
- if ((lfdir = parentdir) == 0) {
- pfatal("SORRY. NO lost+found DIRECTORY");
- printf("\n\n");
- return (0);
- }
- }
- inum = lfdir;
- if ((dp = ginode()) == NULL || !DIRCT || getstate() != FSTATE) {
- inum = orphan;
- pfatal("SORRY. NO lost+found DIRECTORY");
- printf("\n\n");