2 * Copyright (c) 1980, 1986 The Regents of the University of California.
5 * Redistribution and use in source and binary forms are permitted
6 * provided that the above copyright notice and this paragraph are
7 * duplicated in all such forms and that any documentation,
8 * advertising materials, and other materials related to such
9 * distribution and use acknowledge that the software was developed
10 * by the University of California, Berkeley. The name of the
11 * University may not be used to endorse or promote products derived
12 * from this software without specific prior written permission.
13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
18 #include <afsconfig.h>
19 #include <afs/param.h>
24 #include <sys/param.h>
25 #define VICE /* allow us to put our changes in at will */
28 #include <sys/vnode.h>
29 #include <sys/mount.h>
30 #include <ufs/inode.h>
38 #else /* AFS_OSF_ENV */
39 #ifdef AFS_VFSINCL_ENV
40 #include <sys/vnode.h>
45 #include <sys/fs/ufs_inode.h>
46 #include <sys/fs/ufs_fs.h>
48 #include <sys/fs/ufs_fsdir.h>
50 #include <sys/fs/ufs_mount.h>
52 #include <ufs/inode.h>
54 #include <ufs/fsdir.h>
56 #else /* AFS_VFSINCL_ENV */
57 #include <sys/inode.h>
60 #define LONGFILENAMES 1
61 #include <sys/sysmacros.h>
63 #include <sys/signal.h>
70 #endif /* AFS_VFSINCL_ENV */
71 #endif /* AFS_OSF_ENV */
77 #if defined(AFS_HPUX101_ENV)
81 #if defined(AFS_SUN_ENV) || defined(AFS_OSF_ENV)
87 long diskreads, totalreads; /* Disk cache statistics */
88 #if !defined(AFS_HPUX101_ENV)
92 #if defined(AFS_SUN_ENV)
99 #include <sys/mntent.h>
100 #include <sys/mnttab.h>
101 #include <sys/stat.h>
102 #include <sys/vfstab.h>
110 switch (dp->di_mode & IFMT) {
132 printf("bad file type 0%o\n", dp->di_mode);
147 pfatal("INTERNAL ERROR: GOT TO reply()");
148 persevere = !strcmp(question, "CONTINUE");
150 if (!persevere && (nflag || fswritefd < 0)) {
151 printf("%s? no\n\n", question);
152 #if defined(AFS_SUN_ENV)
153 iscorrupt = 1; /* known to be corrupt */
157 if (yflag || (persevere && nflag)) {
158 printf("%s? yes\n\n", question);
162 printf("%s? [yn] ", question);
163 (void)fflush(stdout);
165 while (c != '\n' && getc(stdin) != '\n')
168 } while (c != 'y' && c != 'Y' && c != 'n' && c != 'N');
170 if (c == 'y' || c == 'Y')
175 #if defined(AFS_SUN_ENV)
176 iscorrupt = 1; /* known to be corrupt */
182 * Malloc buffers and set up cache.
186 register struct bufarea *bp;
190 bufp = malloc((unsigned int)sblock.fs_bsize);
192 errexit("cannot allocate buffer pool\n");
193 cgblk.b_un.b_buf = bufp;
195 bufhead.b_next = bufhead.b_prev = &bufhead;
196 bufcnt = MAXBUFSPACE / sblock.fs_bsize;
197 if (bufcnt < MINBUFS)
199 for (i = 0; i < bufcnt; i++) {
200 bp = (struct bufarea *)malloc(sizeof(struct bufarea));
201 bufp = malloc((unsigned int)sblock.fs_bsize);
202 if (bp == NULL || bufp == NULL) {
205 errexit("cannot allocate buffer pool\n");
207 bp->b_un.b_buf = bufp;
208 bp->b_prev = &bufhead;
209 bp->b_next = bufhead.b_next;
210 bufhead.b_next->b_prev = bp;
214 bufhead.b_size = i; /* save number of buffers */
221 * Manage a cache of directory blocks.
224 getdatablk(blkno, size)
228 register struct bufarea *bp;
230 for (bp = bufhead.b_next; bp != &bufhead; bp = bp->b_next)
231 if (bp->b_bno == fsbtodb(&sblock, blkno))
233 for (bp = bufhead.b_prev; bp != &bufhead; bp = bp->b_prev)
234 if ((bp->b_flags & B_INUSE) == 0)
237 errexit("deadlocked buffer pool\n");
238 getblk(bp, blkno, size);
242 bp->b_prev->b_next = bp->b_next;
243 bp->b_next->b_prev = bp->b_prev;
244 bp->b_prev = &bufhead;
245 bp->b_next = bufhead.b_next;
246 bufhead.b_next->b_prev = bp;
248 bp->b_flags |= B_INUSE;
253 getblk(bp, blk, size)
254 register struct bufarea *bp;
260 dblk = fsbtodb(&sblock, blk);
261 if (bp->b_bno == dblk)
263 flush(fswritefd, bp);
265 bp->b_errs = bread(fsreadfd, bp->b_un.b_buf, dblk, size);
273 register struct bufarea *bp;
281 if (bp->b_errs != 0) {
282 pfatal("WRITING %sZERO'ED BLOCK %d TO DISK\n",
283 (bp->b_errs == bp->b_size / dev_bsize) ? "" : "PARTIALLY ",
288 bwrite(fd, bp->b_un.b_buf, bp->b_bno, (long)bp->b_size);
291 #if defined(AFS_HPUX101_ENV)
292 #if defined(AFS_HPUX110_ENV)
293 /* jpm: Need a fix here */
295 #else /* AFS_HPUX110_ENV */
297 (fswritefd, (char *)sblock.fs_csp[0],
298 fsbtodb(&sblock, sblock.fs_csaddr), fragroundup(&sblock,
299 sblock.fs_cssize)) ==
301 #endif /* else AFS_HPUX110_ENV */
304 ("\nUnable to write to cylinder group summary area (fs_csaddr)\n");
305 printf("\tDisk write error at block %u\n",
306 fsbtodb(&sblock, sblock.fs_csaddr));
309 #if defined(AFS_SUN56_ENV)
310 sip = (caddr_t) sblock.fs_u.fs_csp;
311 for (i = 0, j = 0; i < sblock.fs_cssize; i += sblock.fs_bsize, j++) {
313 sblock.fs_cssize - i <
314 sblock.fs_bsize ? sblock.fs_cssize - i : sblock.fs_bsize;
315 bwrite(fswritefd, sip,
316 fsbtodb(&sblock, sblock.fs_csaddr + j * sblock.fs_frag), size);
320 for (i = 0, j = 0; i < sblock.fs_cssize; i += sblock.fs_bsize, j++) {
321 bwrite(fswritefd, (char *)sblock.fs_csp[j],
322 fsbtodb(&sblock, sblock.fs_csaddr + j * sblock.fs_frag),
323 sblock.fs_cssize - i <
324 sblock.fs_bsize ? sblock.fs_cssize - i : sblock.fs_bsize);
326 #endif /* AFS_SUN56_ENV */
327 #endif /* AFS_HPUX101_ENV */
337 pfatal("CANNOT %s: BLK %ld", mesg, blk);
338 if (reply("CONTINUE") == 0)
339 errexit("Program terminated\n");
344 register struct bufarea *bp, *nbp;
347 flush(fswritefd, &sblk);
349 if (havesb && sblk.b_bno != SBOFF / dev_bsize && !preen
350 && reply("UPDATE STANDARD SUPERBLOCK")) {
351 sblk.b_bno = SBOFF / dev_bsize;
352 #else /* AFS_NEWCG_ENV */
353 if (havesb && sblk.b_bno != SBLOCK && !preen
354 && reply("UPDATE STANDARD SUPERBLOCK")) {
356 #endif /* AFS_NEWCG_ENV */
358 flush(fswritefd, &sblk);
360 flush(fswritefd, &cgblk);
361 if (cgblk.b_un.b_buf) {
362 free(cgblk.b_un.b_buf);
363 cgblk.b_un.b_buf = NULL;
365 for (bp = bufhead.b_prev; bp != &bufhead; bp = nbp) {
367 flush(fswritefd, bp);
369 free(bp->b_un.b_buf);
375 if (bufhead.b_size != cnt)
376 errexit("Panic: lost %d buffers\n", bufhead.b_size - cnt);
378 printf("cache missed %d of %d (%d%%)\n", diskreads, totalreads,
379 diskreads * 100 / totalreads);
380 (void)close(fsreadfd);
381 (void)close(fswritefd);
384 #if !defined(AFS_HPUX101_ENV)
385 bread(fd, buf, blk, size)
398 offset_t offset = (offset_t) blk << DEV_BSHIFT;
403 /* To fix a stripping related bug?? */
404 if (lseek(fd, blk * dev_bsize, 0) == -1)
407 if (llseek(fd, offset, 0) < 0)
409 if (lseek(fd, blk * dev_bsize, 0) < 0)
412 rwerror("SEEK", blk);
413 else if (read(fd, buf, (int)size) == size)
415 rwerror("READ", blk);
417 /* To fix a stripping related bug?? */
418 if (lseek(fd, blk * dev_bsize, 0) == -1)
421 if (llseek(fd, offset, 0) < 0)
423 if (lseek(fd, blk * dev_bsize, 0) < 0)
426 rwerror("SEEK", blk);
428 memset(buf, 0, (int)size);
429 printf("THE FOLLOWING DISK SECTORS COULD NOT BE READ:");
431 for (cp = buf, i = 0; i < btodb(size); i++, cp += DEV_BSIZE) {
432 addr = (offset_t) (blk + i) << DEV_BSHIFT;
433 if (llseek(fd, addr, SEEK_CUR) < 0 || read(fd, cp, (int)secsize) < 0) {
434 printf(" %d", blk + i);
436 for (cp = buf, i = 0; i < size; i += secsize, cp += secsize) {
437 if (read(fd, cp, (int)secsize) < 0) {
438 lseek(fd, blk * dev_bsize + i + secsize, 0);
439 if (secsize != dev_bsize && dev_bsize != 1)
440 printf(" %d (%d),", (blk * dev_bsize + i) / secsize,
441 blk + i / dev_bsize);
443 printf(" %d,", blk + i / dev_bsize);
452 bwrite(fd, buf, blk, size)
465 offset_t offset = (offset_t) blk << DEV_BSHIFT;
470 sprintf(msg, "WARNING: Attempt to write illegal blkno %d on %s\n",
481 /* To fix a stripping related bug?? */
482 if (lseek(fd, blk * dev_bsize, 0) == -1)
485 if (llseek(fd, offset, 0) < 0)
487 if (lseek(fd, blk * dev_bsize, 0) < 0)
490 rwerror("SEEK", blk);
491 else if (write(fd, buf, (int)size) == size) {
495 rwerror("WRITE", blk);
497 /* To fix a stripping related bug?? */
498 if (lseek(fd, blk * dev_bsize, 0) == -1)
501 if (llseek(fd, offset, 0) < 0)
503 if (lseek(fd, blk * dev_bsize, 0) < 0)
506 rwerror("SEEK", blk);
507 printf("THE FOLLOWING SECTORS COULD NOT BE WRITTEN:");
509 for (cp = buf, i = 0; i < btodb(size); i++, cp += DEV_BSIZE) {
511 addr = (offset_t) (blk + i) << DEV_BSHIFT;
512 if (llseek(fd, addr, SEEK_CUR) < 0
513 || (n = write(fd, cp, DEV_BSIZE)) < 0) {
514 printf(" %d", blk + i);
521 for (cp = buf, i = 0; i < size; i += dev_bsize, cp += dev_bsize)
522 if (write(fd, cp, (int)dev_bsize) < 0) {
523 lseek(fd, blk * dev_bsize + i + dev_bsize, 0);
524 printf(" %d,", blk + i / dev_bsize);
530 #endif /* AFS_HPUX101_ENV */
532 * allocate a data block with the specified number of fragments
537 register int i, j, k;
539 if (frags <= 0 || frags > sblock.fs_frag)
541 for (i = 0; i < maxfsblock - sblock.fs_frag; i += sblock.fs_frag) {
542 for (j = 0; j <= sblock.fs_frag - frags; j++) {
545 for (k = 1; k < frags; k++)
546 if (testbmap(i + j + k))
552 for (k = 0; k < frags; k++)
562 * Free a previously allocated block
564 freeblk(blkno, frags)
568 struct inodesc idesc;
570 idesc.id_blkno = blkno;
571 idesc.id_numfrags = frags;
578 getpathname(namebuf, curdir, ino)
584 struct inodesc idesc;
585 extern int findname();
587 if (statemap[ino] != DSTATE && statemap[ino] != DFOUND) {
588 strcpy(namebuf, "?");
591 memset((char *)&idesc, 0, sizeof(struct inodesc));
592 idesc.id_type = DATA;
593 cp = &namebuf[BUFSIZ - 1];
596 idesc.id_parent = curdir;
599 while (ino != ROOTINO) {
600 idesc.id_number = ino;
601 idesc.id_func = findino;
602 idesc.id_name = "..";
604 idesc.id_fix = NOFIX;
606 if ((ckinode(ginode(ino), &idesc) & FOUND) == 0)
609 idesc.id_number = idesc.id_parent;
610 idesc.id_parent = ino;
611 idesc.id_func = findname;
612 idesc.id_name = namebuf;
614 idesc.id_fix = NOFIX;
616 if ((ckinode(ginode(idesc.id_number), &idesc) & FOUND) == 0)
618 len = strlen(namebuf);
620 if (cp < &namebuf[MAXNAMLEN])
622 memcpy(cp, namebuf, len);
624 ino = idesc.id_number;
626 if (ino != ROOTINO) {
627 strcpy(namebuf, "?");
630 memcpy(namebuf, cp, &namebuf[BUFSIZ] - cp);
645 * When preening, allow a single quit to signal
646 * a special exit after filesystem checks complete
647 * so that reboot sequence may be interrupted.
652 extern returntosingle;
654 printf("returning to single-user after filesystem check\n");
656 (void)signal(SIGQUIT, SIG_DFL);
660 * Ignore a single quit signal; wait and flush just in case.
661 * Used by child processes in preen.
668 (void)signal(SIGQUIT, SIG_IGN);
669 (void)signal(SIGQUIT, SIG_DFL);
673 * determine whether an inode should be fixed.
676 register struct inodesc *idesc;
680 switch (idesc->id_fix) {
683 if (idesc->id_type == DATA)
684 direrror(idesc->id_number, msg);
688 printf(" (SALVAGED)\n");
692 if (reply("SALVAGE") == 0) {
693 idesc->id_fix = NOFIX;
706 errexit("UNKNOWN INODESC FIX MODE %d\n", idesc->id_fix);
712 errexit(s1, s2, s3, s4)
716 printf(s1, s2, s3, s4);
725 * An unexpected inconsistency occured.
726 * Die if preening, otherwise just print message and continue.
729 pfatal(s, a1, a2, a3)
734 printf("%s: ", devname);
735 printf(s, a1, a2, a3);
737 printf("%s: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.\n", devname);
744 printf(s, a1, a2, a3);
748 * Pwarn just prints a message when not preening,
749 * or a warning (preceded by filename) when preening.
752 pwarn(s, a1, a2, a3, a4, a5, a6)
754 long a1, a2, a3, a4, a5, a6;
757 printf("%s: ", devname);
758 printf(s, a1, a2, a3, a4, a5, a6);
762 * Pwarn just prints a message when not preening,
763 * or a warning (preceded by filename) when preening.
766 pinfo(s, a1, a2, a3, a4, a5, a6)
768 long a1, a2, a3, a4, a5, a6;
771 printf("%s: ", devname);
772 printf(s, a1, a2, a3, a4, a5, a6);
777 * Stub for routines from kernel.
783 pfatal("INTERNAL INCONSISTENCY:");
788 #if defined(AFS_SUN_ENV) && !defined(AFS_SUN3_ENV)
795 if ((iscorrupt == 0) && (isdirty == 0))
797 if ((sblock.fs_clean != FSSTABLE) && (sblock.fs_clean != FSCLEAN))
800 if (FSOKAY != (sblock.fs_state + sblock.fs_time))
802 if (FSOKAY != (fs_get_state(&sblock) + sblock.fs_time))
806 sprintf(s, "WARNING: inconsistencies detected on `%s' filesystem %s",
807 sblock.fs_clean == FSSTABLE ? "stable" : "clean", devname);
813 struct bufarea cleanbuf;
816 unsigned int fsclean;
817 #if defined(AFS_SUN56_ENV)
822 /* set fsclean to its appropriate value */
823 fsclean = sblock.fs_clean;
825 if (FSOKAY != (sblock.fs_state + sblock.fs_time))
827 if (FSOKAY != (fs_get_state(&sblock) + sblock.fs_time))
831 /* if necessary, update fs_clean and fs_state */
848 /* if fs_clean and fs_state are ok, do nothing */
849 if ((sblock.fs_clean == fsclean) &&
851 (FSOKAY == (sblock.fs_state + sblock.fs_time)))
853 (FSOKAY == (fs_get_state(&sblock) + sblock.fs_time)))
856 sblock.fs_clean = fsclean;
858 sblock.fs_state = sblock.fs_time;
860 fs_set_state(&sblock, sblock.fs_time);
862 /* if superblock can't be written, return */
865 /* read private copy of superblock, update clean flag, and write it */
868 #if defined(AFS_SUN56_ENV)
869 sblkoff = (OFF_T) (bno) << DEV_BSHIFT;
870 if (llseek(fsreadfd, sblkoff, 0) == -1)
873 if (lseek(fsreadfd, (off_t) dbtob(bno), 0) == -1)
876 if ((cleanbuf.b_un.b_buf = malloc(size)) == NULL)
877 errexit("out of memory");
878 if (read(fsreadfd, cleanbuf.b_un.b_buf, (int)size) != size)
880 cleanbuf.b_un.b_fs->fs_clean = sblock.fs_clean;
882 cleanbuf.b_un.b_fs->fs_state = sblock.fs_state;
884 fs_set_state(cleanbuf.b_un.b_fs, fs_get_state(&sblock));
886 cleanbuf.b_un.b_fs->fs_time = sblock.fs_time;
887 #if defined(AFS_SUN56_ENV)
888 if (llseek(fswritefd, sblkoff, 0) == -1)
891 if (lseek(fswritefd, (off_t) dbtob(bno), 0) == -1)
894 if (write(fswritefd, cleanbuf.b_un.b_buf, (int)size) != size)
903 if (FSOKAY != (sblock.fs_state + sblock.fs_time))
905 if (FSOKAY != (fs_get_state(&sblock) + sblock.fs_time))
910 switch (sblock.fs_clean) {
924 pwarn("is %s.\n", s);
926 printf("** %s is %s.\n", devname, s);
933 register struct vfstab *vfs;
937 static char *tmpopts;
939 if (vfs->vfs_mntopts == NULL)
942 tmpopts = (char *)calloc(256, sizeof(char));
946 strncpy(tmpopts, vfs->vfs_mntopts, (sizeof(tmpopts) - 1));
949 for (; *f; f = mntopt(&opts)) {
950 if (strncmp(opt, f, strlen(opt)) == 0)
951 return (f - tmpopts + vfs->vfs_mntopts);
961 struct vfstab vfsbuf;
963 char *blkname, *unrawname();
965 vfstab = fopen(VFSTAB, "r");
966 if (vfstab == NULL) {
967 printf("can't open %s\n", VFSTAB);
970 blkname = unrawname(name);
971 if ((getvfsspec(vfstab, &vfsbuf, blkname) == 0)
972 && (vfsbuf.vfs_fstype != NULL)
973 && (strcmp(vfsbuf.vfs_fstype, MNTTYPE_UFS) == 0)
974 && (hasvfsopt(&vfsbuf, MNTOPT_RO))) {
987 struct stat device_stat, mount_stat;
988 char *blkname, *unrawname();
990 mnttab = fopen(MNTTAB, "r");
991 if (mnttab == NULL) {
992 printf("can't open %s\n", MNTTAB);
995 blkname = unrawname(name);
996 while ((getmntent(mnttab, &mnt)) == NULL) {
997 if (strcmp(mnt.mnt_fstype, MNTTYPE_UFS) != 0) {
1000 if (strcmp(blkname, mnt.mnt_special) == 0) {
1001 stat(mnt.mnt_mountp, &mount_stat);
1002 stat(mnt.mnt_special, &device_stat);
1003 if (device_stat.st_rdev == mount_stat.st_dev) {
1004 if (hasmntopt(&mnt, MNTOPT_RO) != 0)
1005 found = 2; /* mounted as RO */
1007 found = 1; /* mounted as R/W */
1018 #if defined(AFS_HPUX101_ENV)
1021 #include <sys/stat.h>
1022 #include <sys/fcntl.h>
1026 bread(fd, buf, blk, size)
1035 switch (seek_options) {
1036 case BLKSEEK_ENABLED:
1040 case BLKSEEK_NOT_ENABLED: /* File */
1041 #if defined(AFS_HPUX102_ENV)
1042 lseek_offset = dbtoo(blk);
1044 lseek_offset = dbtob(blk);
1049 rwerror("BLKSEEK", blk);
1051 if (lseek(fd, (off_t) lseek_offset, 0) == (off_t) - 1)
1052 rwerror("SEEK", blk);
1053 else if (read(fd, buf, (int)size) == size)
1055 rwerror("READ", blk);
1059 bwrite(fd, buf, blk, size)
1070 switch (seek_options) {
1071 case BLKSEEK_ENABLED:
1075 case BLKSEEK_NOT_ENABLED: /* File */
1076 #if defined(AFS_HPUX102_ENV)
1077 lseek_offset = dbtoo(blk);
1079 lseek_offset = dbtob(blk);
1084 rwerror("BLKSEEK", blk);
1086 if (lseek(fd, (off_t) lseek_offset, 0) == (off_t) - 1)
1087 rwerror("SEEK", blk);
1088 else if (write(fd, buf, (int)size) == size) {
1092 rwerror("WRITE", blk);
1097 setup_block_seek(fd)
1098 int fd; /* File descriptor */
1100 int flags = 0; /* Flags to/from fcntl() */
1102 return setup_block_seek_2(fd, &flags);
1105 #define set_fserror printf
1108 setup_block_seek_2(fd, cntl_flags)
1109 int fd; /* Input. File descriptor */
1110 int *cntl_flags; /* Returned. Flags from fcntl() */
1112 int flags = 0; /* Flags to/from fcntl() */
1113 off_t lstatus; /* Status from lseek() */
1114 struct stat statarea;
1115 char dummy[MAXBSIZE];
1121 if ((flags = fcntl(fd, F_GETFL)) == -1) {
1122 set_fserror("Cannot get file control flags.");
1123 return (BLKSEEK_PROCESSING_ERROR);
1127 * Check if fd is a non-device file
1130 if (fstat(fd, &statarea) == -1) {
1131 set_fserror("Cannot get status information on file descriptor.");
1132 return (BLKSEEK_PROCESSING_ERROR);
1134 if (((statarea.st_mode & S_IFMT) != S_IFCHR)
1135 && ((statarea.st_mode & S_IFMT) != S_IFBLK)) {
1136 /* Not a device file -- BLKSEEK only works on device files */
1137 *cntl_flags = flags; /* O_BLKSEEK bit never set */
1138 return (BLKSEEK_NOT_ENABLED);
1142 * Set the fd to O_BLKSEEK
1144 if (fcntl(fd, F_SETFL, flags | O_BLKSEEK) == -1) {
1145 set_fserror("Cannot set file control flags.");
1146 return (BLKSEEK_PROCESSING_ERROR);
1148 if (flags & O_WRONLY) {
1149 /* Set lseek to location 0 before returning */
1150 if (lseek(fd, (off_t) 0, SEEK_SET) == (off_t) - 1) {
1151 set_fserror("Cannot lseek the device.");
1152 return (BLKSEEK_PROCESSING_ERROR);
1156 ("File is write only. Cannot Verify O_BLKSEEK mode set.");
1157 *cntl_flags = flags | O_BLKSEEK;
1158 return (BLKSEEK_FILE_WRITEONLY);
1162 * Verify that kernel knows how to do O_BLKSEEK
1164 if (lseek(fd, (off_t) 0, SEEK_SET) == (off_t) - 1) {
1165 set_fserror("Cannot lseek the device.");
1166 return (BLKSEEK_PROCESSING_ERROR);
1168 if (read(fd, &dummy[0], BBSIZE) != BBSIZE) { /* BBSIZE = 8192 */
1169 set_fserror("Cannot read from the device");
1170 return (BLKSEEK_PROCESSING_ERROR);
1173 if ((lstatus = lseek(fd, (off_t) 0, SEEK_CUR)) == (off_t) - 1) {
1174 set_fserror("Cannot lseek the device.");
1175 return (BLKSEEK_PROCESSING_ERROR);
1179 * Set lseek to location 0
1181 if (lseek(fd, (off_t) 0, SEEK_SET) == (off_t) - 1) {
1182 set_fserror("Cannot lseek the device.");
1183 return (BLKSEEK_PROCESSING_ERROR);
1186 if (lstatus == (off_t) (BBSIZE / DEV_BSIZE)) {
1187 *cntl_flags = flags | O_BLKSEEK;
1188 return (BLKSEEK_ENABLED); /* Successfully enabled O_BLKSEEK */
1190 *cntl_flags = flags & (~O_BLKSEEK); /* Turn off O_BLKSEEK bit */
1191 return (BLKSEEK_NOT_ENABLED); /* O_BLKSEEK not enabled */
1194 setup_all_block_seek()
1197 seek_options = setup_block_seek(fsreadfd);
1198 switch (seek_options) {
1199 case BLKSEEK_ENABLED:
1200 case BLKSEEK_NOT_ENABLED:
1203 errexit("setup_block_seek on fsreadfd");
1206 if (fswritefd == -1)
1208 switch (opt = setup_block_seek(fswritefd)) {
1209 case BLKSEEK_FILE_WRITEONLY: /* WO block or char device. */
1210 case BLKSEEK_NOT_ENABLED: /* regular file. */
1211 if (seek_options != opt)
1213 ("seek_options on fsreadfd (%d) and fswritefd (%d) do not match",
1217 errexit("setup_block_seek on fswritefd");
1222 printf("read option = %d write option = %d\n", seek_options, opt);
1227 #endif /* AFS_HPUX101_ENV */