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-rw-r--r--usr.sbin/makefs/ffs/buf.c222
1 files changed, 0 insertions, 222 deletions
diff --git a/usr.sbin/makefs/ffs/buf.c b/usr.sbin/makefs/ffs/buf.c
deleted file mode 100644
index 08fb627..0000000
--- a/usr.sbin/makefs/ffs/buf.c
+++ /dev/null
@@ -1,222 +0,0 @@
-/* $NetBSD: buf.c,v 1.12 2004/06/20 22:20:18 jmc Exp $ */
-
-/*
- * Copyright (c) 2001 Wasabi Systems, Inc.
- * All rights reserved.
- *
- * Written by Luke Mewburn for Wasabi Systems, Inc.
- *
- * 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 for the NetBSD Project by
- * Wasabi Systems, Inc.
- * 4. The name of Wasabi Systems, Inc. may not be used to endorse
- * or promote products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
- * 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.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/time.h>
-
-#include <assert.h>
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include "makefs.h"
-
-#include <ufs/ufs/dinode.h>
-#include <ufs/ffs/fs.h>
-
-#include "ffs/buf.h"
-#include "ffs/ufs_inode.h"
-
-extern int sectorsize; /* XXX: from ffs.c & mkfs.c */
-
-TAILQ_HEAD(buftailhead,buf) buftail;
-
-int
-bread(int fd, struct fs *fs, daddr_t blkno, int size, struct buf **bpp)
-{
- off_t offset;
- ssize_t rv;
-
- assert (fs != NULL);
- assert (bpp != NULL);
-
- if (debug & DEBUG_BUF_BREAD)
- printf("bread: fs %p blkno %lld size %d\n",
- fs, (long long)blkno, size);
- *bpp = getblk(fd, fs, blkno, size);
- offset = (*bpp)->b_blkno * sectorsize; /* XXX */
- if (debug & DEBUG_BUF_BREAD)
- printf("bread: bp %p blkno %lld offset %lld bcount %ld\n",
- (*bpp), (long long)(*bpp)->b_blkno, (long long) offset,
- (*bpp)->b_bcount);
- if (lseek((*bpp)->b_fd, offset, SEEK_SET) == -1)
- err(1, "bread: lseek %lld (%lld)",
- (long long)(*bpp)->b_blkno, (long long)offset);
- rv = read((*bpp)->b_fd, (*bpp)->b_data, (*bpp)->b_bcount);
- if (debug & DEBUG_BUF_BREAD)
- printf("bread: read %ld (%lld) returned %d\n",
- (*bpp)->b_bcount, (long long)offset, (int)rv);
- if (rv == -1) /* read error */
- err(1, "bread: read %ld (%lld) returned %d",
- (*bpp)->b_bcount, (long long)offset, (int)rv);
- else if (rv != (*bpp)->b_bcount) /* short read */
- err(1, "bread: read %ld (%lld) returned %d",
- (*bpp)->b_bcount, (long long)offset, (int)rv);
- else
- return (0);
-}
-
-void
-brelse(struct buf *bp)
-{
-
- assert (bp != NULL);
- assert (bp->b_data != NULL);
-
- if (bp->b_lblkno < 0) {
- /*
- * XXX don't remove any buffers with negative logical block
- * numbers (lblkno), so that we retain the mapping
- * of negative lblkno -> real blkno that ffs_balloc()
- * sets up.
- *
- * if we instead released these buffers, and implemented
- * ufs_strategy() (and ufs_bmaparray()) and called those
- * from bread() and bwrite() to convert the lblkno to
- * a real blkno, we'd add a lot more code & complexity
- * and reading off disk, for little gain, because this
- * simple hack works for our purpose.
- */
- bp->b_bcount = 0;
- return;
- }
-
- TAILQ_REMOVE(&buftail, bp, b_tailq);
- free(bp->b_data);
- free(bp);
-}
-
-int
-bwrite(struct buf *bp)
-{
- off_t offset;
- ssize_t rv;
-
- assert (bp != NULL);
- offset = bp->b_blkno * sectorsize; /* XXX */
- if (debug & DEBUG_BUF_BWRITE)
- printf("bwrite: bp %p blkno %lld offset %lld bcount %ld\n",
- bp, (long long)bp->b_blkno, (long long) offset,
- bp->b_bcount);
- if (lseek(bp->b_fd, offset, SEEK_SET) == -1)
- return (errno);
- rv = write(bp->b_fd, bp->b_data, bp->b_bcount);
- if (debug & DEBUG_BUF_BWRITE)
- printf("bwrite: write %ld (offset %lld) returned %lld\n",
- bp->b_bcount, (long long)offset, (long long)rv);
- if (rv == bp->b_bcount)
- return (0);
- else if (rv == -1) /* write error */
- return (errno);
- else /* short write ? */
- return (EAGAIN);
-}
-
-void
-bcleanup(void)
-{
- struct buf *bp;
-
- /*
- * XXX this really shouldn't be necessary, but i'm curious to
- * know why there's still some buffers lying around that
- * aren't brelse()d
- */
-
- if (TAILQ_EMPTY(&buftail))
- return;
-
- printf("bcleanup: unflushed buffers:\n");
- TAILQ_FOREACH(bp, &buftail, b_tailq) {
- printf("\tlblkno %10lld blkno %10lld count %6ld bufsize %6ld\n",
- (long long)bp->b_lblkno, (long long)bp->b_blkno,
- bp->b_bcount, bp->b_bufsize);
- }
- printf("bcleanup: done\n");
-}
-
-struct buf *
-getblk(int fd, struct fs *fs, daddr_t blkno, int size)
-{
- static int buftailinitted;
- struct buf *bp;
- void *n;
-
- assert (fs != NULL);
- if (debug & DEBUG_BUF_GETBLK)
- printf("getblk: fs %p blkno %lld size %d\n", fs,
- (long long)blkno, size);
-
- bp = NULL;
- if (!buftailinitted) {
- if (debug & DEBUG_BUF_GETBLK)
- printf("getblk: initialising tailq\n");
- TAILQ_INIT(&buftail);
- buftailinitted = 1;
- } else {
- TAILQ_FOREACH(bp, &buftail, b_tailq) {
- if (bp->b_lblkno != blkno)
- continue;
- break;
- }
- }
- if (bp == NULL) {
- if ((bp = calloc(1, sizeof(struct buf))) == NULL)
- err(1, "getblk: calloc");
-
- bp->b_bufsize = 0;
- bp->b_blkno = bp->b_lblkno = blkno;
- bp->b_fd = fd;
- bp->b_fs = fs;
- bp->b_data = NULL;
- TAILQ_INSERT_HEAD(&buftail, bp, b_tailq);
- }
- bp->b_bcount = size;
- if (bp->b_data == NULL || bp->b_bcount > bp->b_bufsize) {
- n = realloc(bp->b_data, size);
- if (n == NULL)
- err(1, "getblk: realloc b_data %ld", bp->b_bcount);
- bp->b_data = n;
- bp->b_bufsize = size;
- }
-
- return (bp);
-}
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