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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2013-09-17 19:20:42 +0200
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2013-09-17 19:20:42 +0200
commit84cf9c0f312637b670cc87224ff7e7c4da659e36 (patch)
tree5e7f0f1f6c7579d1275bb5cf1856ce52767ac8b3 /ufs/subr.c
parent3e6aab0243da094f1ca05b80eb3e5a9adb8ea519 (diff)
Remove UFS support
It has been unused/untested/unmaintained for a decade now, and its 4-clause BSD licence poses problem. * configure.ac (default_static): Remove ufs. * Makefile (prog-subdirs): Remove ufs, ufs-fsck and ufs-utils. * NEWS, TODO: doc/hurd.texi, doc/navigating: Remove UFS notes. * ufs: Remove directory * ufs-fsck: Remove directory * ufs-utils: Remove directory * bsdfsck: Remove directory
Diffstat (limited to 'ufs/subr.c')
-rw-r--r--ufs/subr.c264
1 files changed, 0 insertions, 264 deletions
diff --git a/ufs/subr.c b/ufs/subr.c
deleted file mode 100644
index 2b356ddc..00000000
--- a/ufs/subr.c
+++ /dev/null
@@ -1,264 +0,0 @@
-/*
- * Copyright (c) 1982, 1986, 1989, 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.
- * 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.
- *
- * @(#)ffs_subr.c 8.2 (Berkeley) 9/21/93
- */
-
-#include "ufs.h"
-
-#if 0 /* Not needed in GNU Hurd ufs. */
-/*
- * Return buffer with the contents of block "offset" from the beginning of
- * directory "ip". If "res" is non-zero, fill it in with a pointer to the
- * remaining space in the directory.
- */
-int
-ffs_blkatoff(ap)
- struct vop_blkatoff_args /* {
- struct vnode *a_vp;
- off_t a_offset;
- char **a_res;
- struct buf **a_bpp;
- } */ *ap;
-{
- struct inode *ip;
- register struct fs *fs;
- struct buf *bp;
- daddr_t lbn;
- int bsize, error;
-
- ip = VTOI(ap->a_vp);
- fs = ip->i_fs;
- lbn = lblkno(fs, ap->a_offset);
- bsize = blksize(fs, ip, lbn);
-
- *ap->a_bpp = NULL;
- if (error = bread(ap->a_vp, lbn, bsize, NOCRED, &bp)) {
- brelse(bp);
- return (error);
- }
- if (ap->a_res)
- *ap->a_res = (char *)bp->b_data + blkoff(fs, ap->a_offset);
- *ap->a_bpp = bp;
- return (0);
-}
-#endif /* 0 */
-
-/*
- * Update the frsum fields to reflect addition or deletion
- * of some frags.
- */
-void
-ffs_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;
- }
- }
-}
-
-#if 0 /* Not needed in GNU Hurd ufs. */
-void
-ffs_checkoverlap(bp, ip)
- struct buf *bp;
- struct inode *ip;
-{
- register struct buf *ebp, *ep;
- register daddr_t start, last;
- struct vnode *vp;
-
- ebp = &buf[nbuf];
- start = bp->b_blkno;
- last = start + btodb(bp->b_bcount) - 1;
- for (ep = buf; ep < ebp; ep++) {
- if (ep == bp || (ep->b_flags & B_INVAL) ||
- ep->b_vp == NULLVP)
- continue;
- if (VOP_BMAP(ep->b_vp, (daddr_t)0, &vp, (daddr_t)0, NULL))
- continue;
- if (vp != ip->i_devvp)
- continue;
- /* look for overlap */
- if (ep->b_bcount == 0 || ep->b_blkno > last ||
- ep->b_blkno + btodb(ep->b_bcount) <= start)
- continue;
- vprint("Disk overlap", vp);
- (void)printf("\tstart %d, end %d overlap start %d, end %d\n",
- start, last, ep->b_blkno,
- ep->b_blkno + btodb(ep->b_bcount) - 1);
- panic("Disk buffer overlap");
- }
-}
-#endif /* 0 */
-
-/*
- * block operations
- *
- * check if a block is available
- */
-int
-ffs_isblock(fs, cp, h)
- struct fs *fs;
- unsigned char *cp;
- daddr_t h;
-{
- unsigned char mask;
-
- switch ((int)fs->fs_frag) {
- case 8:
- return (cp[h] == 0xff);
- case 4:
- mask = 0x0f << ((h & 0x1) << 2);
- return ((cp[h >> 1] & mask) == mask);
- case 2:
- mask = 0x03 << ((h & 0x3) << 1);
- return ((cp[h >> 2] & mask) == mask);
- case 1:
- mask = 0x01 << (h & 0x7);
- return ((cp[h >> 3] & mask) == mask);
- default:
- assert (0);
- }
-}
-
-/*
- * take a block out of the map
- */
-void
-ffs_clrblock(fs, cp, h)
- struct fs *fs;
- u_char *cp;
- daddr_t h;
-{
-
- switch ((int)fs->fs_frag) {
- case 8:
- cp[h] = 0;
- return;
- case 4:
- cp[h >> 1] &= ~(0x0f << ((h & 0x1) << 2));
- return;
- case 2:
- cp[h >> 2] &= ~(0x03 << ((h & 0x3) << 1));
- return;
- case 1:
- cp[h >> 3] &= ~(0x01 << (h & 0x7));
- return;
- default:
- assert (0);
- }
-}
-
-/*
- * put a block into the map
- */
-void
-ffs_setblock(fs, cp, h)
- struct fs *fs;
- unsigned char *cp;
- daddr_t h;
-{
-
- switch ((int)fs->fs_frag) {
-
- case 8:
- cp[h] = 0xff;
- return;
- case 4:
- cp[h >> 1] |= (0x0f << ((h & 0x1) << 2));
- return;
- case 2:
- cp[h >> 2] |= (0x03 << ((h & 0x3) << 1));
- return;
- case 1:
- cp[h >> 3] |= (0x01 << (h & 0x7));
- return;
- default:
- assert (0);
- }
-}
-
-/* Taken from 4.4 BSD sys/libkern/skpc.c:
- @(#)skpc.c 8.1 (Berkeley) 6/10/93
-*/
-int
-skpc(mask0, size, cp0)
- int mask0;
- int size;
- char *cp0;
-{
- register u_char *cp, *end, mask;
-
- mask = mask0;
- cp = (u_char *)cp0;
- for (end = &cp[size]; cp < end && *cp == mask; ++cp);
- return (end - cp);
-}
-
-/* Taken from 4.4 BSD sys/libkern/scanc.c:
- @(#)scanc.c 8.1 (Berkeley) 6/10/93
-*/
-int
-scanc(size, cp, table, mask0)
- u_int size;
- register u_char *cp, table[];
- int mask0;
-{
- register u_char *end;
- register u_char mask;
-
- mask = mask0;
- for (end = &cp[size]; cp < end && (table[*cp] & mask) == 0; ++cp);
- return (end - cp);
-}