/*
* Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* $NetBSD: cd9660_bmap.c,v 1.5 1994/12/13 22:33:12 mycroft Exp $ */
#include <sys/vnode.h>
#include <sys/mount.h>
#include <sys/namei.h>
-#include <sys/buf.h>
#include <sys/file.h>
#include <isofs/cd9660/iso.h>
#include <isofs/cd9660/cd9660_node.h>
-/*
- * Bmap converts the logical block number of a file to its physical block
- * number on the disk. The conversion is done by using the logical block
- * number to index into the data block (extent) for the file.
- */
-int
-cd9660_bmap(ap)
- struct vop_bmap_args /* {
- struct vnode *a_vp;
- daddr_t a_bn;
- struct vnode **a_vpp;
- daddr_t *a_bnp;
- int *a_runp;
- } */ *ap;
-{
- struct iso_node *ip = VTOI(ap->a_vp);
- daddr_t lblkno = ap->a_bn;
- int bshift;
-
- /*
- * Check for underlying vnode requests and ensure that logical
- * to physical mapping is requested.
- */
- if (ap->a_vpp != NULL)
- *ap->a_vpp = ip->i_devvp;
- if (ap->a_bnp == NULL)
- return (0);
-
- /*
- * Associated files have an Apple Double header
- */
- if ((ip->i_flag & ISO_ASSOCIATED) && (lblkno > (ADH_BLKS - 1))) {
- lblkno -= ADH_BLKS;
- *ap->a_bnp = (ip->iso_start + lblkno);
- if (ap->a_runp)
- *ap->a_runp = 0;
- return (0);
- }
-
- /*
- * Compute the requested block number
- */
- bshift = ip->i_mnt->im_bshift;
- *ap->a_bnp = (ip->iso_start + lblkno);
-
- /*
- * Determine maximum number of readahead blocks following the
- * requested block.
- */
- if (ap->a_runp) {
- int nblk;
-
- nblk = (ip->i_size >> bshift) - (lblkno + 1);
- if (nblk <= 0)
- *ap->a_runp = 0;
- else if (nblk >= (MAXBSIZE >> bshift))
- *ap->a_runp = (MAXBSIZE >> bshift) - 1;
- else
- *ap->a_runp = nblk;
- }
-
- return (0);
-}
/* blktooff converts a logical block number to a file offset */
int
-cd9660_blktooff(ap)
- struct vop_blktooff_args /* {
- struct vnode *a_vp;
- daddr_t a_lblkno;
- off_t *a_offset;
- } */ *ap;
+cd9660_blktooff(struct vnop_blktooff_args *ap)
{
register struct iso_node *ip;
register struct iso_mnt *imp;
/* offtoblk converts a file offset to a logical block number */
int
-cd9660_offtoblk(ap)
-struct vop_offtoblk_args /* {
- struct vnode *a_vp;
- off_t a_offset;
- daddr_t *a_lblkno;
- } */ *ap;
+cd9660_offtoblk(struct vnop_offtoblk_args *ap)
{
register struct iso_node *ip;
register struct iso_mnt *imp;
ip = VTOI(ap->a_vp);
imp = ip->i_mnt;
- *ap->a_lblkno = (daddr_t)lblkno(imp, ap->a_offset);
+ *ap->a_lblkno = (daddr64_t)lblkno(imp, ap->a_offset);
return (0);
}
int
-cd9660_cmap(ap)
-struct vop_cmap_args /* {
- struct vnode *a_vp;
- off_t a_offset;
- size_t a_size;
- daddr_t *a_bpn;
- size_t *a_run;
- void *a_poff;
-} */ *ap;
+cd9660_blockmap(struct vnop_blockmap_args *ap)
{
struct iso_node *ip = VTOI(ap->a_vp);
size_t cbytes;
if (ap->a_bpn == NULL)
return (0);
- VOP_DEVBLOCKSIZE(ip->i_devvp, &devBlockSize);
+ devBlockSize = vfs_devblocksize(vnode_mount(ap->a_vp));
/*
* Associated files have an Apple Double header
if (offset < ADH_SIZE) {
if (ap->a_run)
*ap->a_run = 0;
- *ap->a_bpn = -1;
+ *ap->a_bpn = (daddr64_t)-1;
goto out;
} else {
offset -= ADH_SIZE;
}
}
- *ap->a_bpn = (daddr_t)(ip->iso_start + lblkno(ip->i_mnt, offset));
+ *ap->a_bpn = (daddr64_t)(ip->iso_start + lblkno(ip->i_mnt, offset));
/*
* Determine maximum number of contiguous bytes following the
projects / apple / xnu.git / blobdiff