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5b813f1a2a
Prior to this change we would assume the ABI for Apple targets to be GNU which could result in subtle errors in LLVM emitting calls to non-existent system libc provided functions such as `_sincosf` which is a GNU extension and as such is not provided by macOS for example. This would result in linker errors where the linker would not be able to find the said symbol in `libSystem.tbd`. With this change, we now correctly identify macOS (and other Apple platforms) as having ABI `unknown` which translates to unspecified in LLVM under-the-hood: ``` // main.ll target triple = "aarch64-unknown-macos-unknown" ``` Note however that we never suffix the target OS with target version such as `macos11` or `macos12` which means we fail to instruct LLVM of potential optimisations provided by the OS such as the availability of function `___sincosf_stret`. I suggest we investigate that in a follow-up commit.
423 lines
18 KiB
C
Vendored
423 lines
18 KiB
C
Vendored
/*
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* Copyright (c) 2000-2018 Apple Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
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/*
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* Copyright (c) 1989, 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)mount.h 8.21 (Berkeley) 5/20/95
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*/
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/*
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* NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce
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* support for mandatory and extensible security protections. This notice
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* is included in support of clause 2.2 (b) of the Apple Public License,
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* Version 2.0.
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*/
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#ifndef _SYS_MOUNT_H_
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#define _SYS_MOUNT_H_
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#include <sys/appleapiopts.h>
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#include <sys/cdefs.h>
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#include <sys/attr.h> /* needed for vol_capabilities_attr_t */
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#include <os/base.h>
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#include <stdint.h>
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#include <sys/ucred.h>
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#include <sys/queue.h> /* XXX needed for user builds */
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#include <Availability.h>
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#include <sys/_types/_fsid_t.h> /* file system id type */
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/*
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* file system statistics
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*/
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#define MFSNAMELEN 15 /* length of fs type name, not inc. null */
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#define MFSTYPENAMELEN 16 /* length of fs type name including null */
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#if __DARWIN_64_BIT_INO_T
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#define MNAMELEN MAXPATHLEN /* length of buffer for returned name */
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#else /* ! __DARWIN_64_BIT_INO_T */
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#define MNAMELEN 90 /* length of buffer for returned name */
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#endif /* __DARWIN_64_BIT_INO_T */
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#define MNT_EXT_ROOT_DATA_VOL 0x00000001 /* Data volume of root volume group */
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#define __DARWIN_STRUCT_STATFS64 { \
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uint32_t f_bsize; /* fundamental file system block size */ \
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int32_t f_iosize; /* optimal transfer block size */ \
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uint64_t f_blocks; /* total data blocks in file system */ \
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uint64_t f_bfree; /* free blocks in fs */ \
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uint64_t f_bavail; /* free blocks avail to non-superuser */ \
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uint64_t f_files; /* total file nodes in file system */ \
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uint64_t f_ffree; /* free file nodes in fs */ \
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fsid_t f_fsid; /* file system id */ \
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uid_t f_owner; /* user that mounted the filesystem */ \
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uint32_t f_type; /* type of filesystem */ \
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uint32_t f_flags; /* copy of mount exported flags */ \
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uint32_t f_fssubtype; /* fs sub-type (flavor) */ \
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char f_fstypename[MFSTYPENAMELEN]; /* fs type name */ \
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char f_mntonname[MAXPATHLEN]; /* directory on which mounted */ \
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char f_mntfromname[MAXPATHLEN]; /* mounted filesystem */ \
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uint32_t f_flags_ext; /* extended flags */ \
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uint32_t f_reserved[7]; /* For future use */ \
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}
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#if !__DARWIN_ONLY_64_BIT_INO_T
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struct statfs64 __DARWIN_STRUCT_STATFS64;
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#endif /* !__DARWIN_ONLY_64_BIT_INO_T */
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#if __DARWIN_64_BIT_INO_T
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struct statfs __DARWIN_STRUCT_STATFS64;
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#else /* !__DARWIN_64_BIT_INO_T */
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/*
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* LP64 - WARNING - must be kept in sync with struct user_statfs in mount_internal.h.
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*/
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struct statfs {
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short f_otype; /* TEMPORARY SHADOW COPY OF f_type */
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short f_oflags; /* TEMPORARY SHADOW COPY OF f_flags */
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long f_bsize; /* fundamental file system block size */
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long f_iosize; /* optimal transfer block size */
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long f_blocks; /* total data blocks in file system */
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long f_bfree; /* free blocks in fs */
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long f_bavail; /* free blocks avail to non-superuser */
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long f_files; /* total file nodes in file system */
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long f_ffree; /* free file nodes in fs */
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fsid_t f_fsid; /* file system id */
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uid_t f_owner; /* user that mounted the filesystem */
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short f_reserved1; /* spare for later */
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short f_type; /* type of filesystem */
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long f_flags; /* copy of mount exported flags */
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long f_reserved2[2]; /* reserved for future use */
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char f_fstypename[MFSNAMELEN]; /* fs type name */
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char f_mntonname[MNAMELEN]; /* directory on which mounted */
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char f_mntfromname[MNAMELEN];/* mounted filesystem */
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char f_reserved3; /* For alignment */
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long f_reserved4[4]; /* For future use */
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};
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#endif /* __DARWIN_64_BIT_INO_T */
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#pragma pack(4)
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struct vfsstatfs {
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uint32_t f_bsize; /* fundamental file system block size */
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size_t f_iosize; /* optimal transfer block size */
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uint64_t f_blocks; /* total data blocks in file system */
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uint64_t f_bfree; /* free blocks in fs */
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uint64_t f_bavail; /* free blocks avail to non-superuser */
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uint64_t f_bused; /* free blocks avail to non-superuser */
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uint64_t f_files; /* total file nodes in file system */
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uint64_t f_ffree; /* free file nodes in fs */
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fsid_t f_fsid; /* file system id */
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uid_t f_owner; /* user that mounted the filesystem */
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uint64_t f_flags; /* copy of mount exported flags */
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char f_fstypename[MFSTYPENAMELEN];/* fs type name inclus */
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char f_mntonname[MAXPATHLEN];/* directory on which mounted */
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char f_mntfromname[MAXPATHLEN];/* mounted filesystem */
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uint32_t f_fssubtype; /* fs sub-type (flavor) */
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void *f_reserved[2]; /* For future use == 0 */
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};
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#pragma pack()
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/*
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* User specifiable flags.
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*
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* Unmount uses MNT_FORCE flag.
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*/
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#define MNT_RDONLY 0x00000001 /* read only filesystem */
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#define MNT_SYNCHRONOUS 0x00000002 /* file system written synchronously */
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#define MNT_NOEXEC 0x00000004 /* can't exec from filesystem */
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#define MNT_NOSUID 0x00000008 /* don't honor setuid bits on fs */
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#define MNT_NODEV 0x00000010 /* don't interpret special files */
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#define MNT_UNION 0x00000020 /* union with underlying filesystem */
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#define MNT_ASYNC 0x00000040 /* file system written asynchronously */
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#define MNT_CPROTECT 0x00000080 /* file system supports content protection */
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/*
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* NFS export related mount flags.
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*/
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#define MNT_EXPORTED 0x00000100 /* file system is exported */
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/*
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* Denotes storage which can be removed from the system by the user.
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*/
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#define MNT_REMOVABLE 0x00000200
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/*
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* MAC labeled / "quarantined" flag
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*/
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#define MNT_QUARANTINE 0x00000400 /* file system is quarantined */
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/*
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* Flags set by internal operations.
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*/
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#define MNT_LOCAL 0x00001000 /* filesystem is stored locally */
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#define MNT_QUOTA 0x00002000 /* quotas are enabled on filesystem */
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#define MNT_ROOTFS 0x00004000 /* identifies the root filesystem */
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#define MNT_DOVOLFS 0x00008000 /* FS supports volfs (deprecated flag in Mac OS X 10.5) */
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#define MNT_DONTBROWSE 0x00100000 /* file system is not appropriate path to user data */
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#define MNT_IGNORE_OWNERSHIP 0x00200000 /* VFS will ignore ownership information on filesystem objects */
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#define MNT_AUTOMOUNTED 0x00400000 /* filesystem was mounted by automounter */
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#define MNT_JOURNALED 0x00800000 /* filesystem is journaled */
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#define MNT_NOUSERXATTR 0x01000000 /* Don't allow user extended attributes */
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#define MNT_DEFWRITE 0x02000000 /* filesystem should defer writes */
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#define MNT_MULTILABEL 0x04000000 /* MAC support for individual labels */
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#define MNT_NOATIME 0x10000000 /* disable update of file access time */
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#define MNT_SNAPSHOT 0x40000000 /* The mount is a snapshot */
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#define MNT_STRICTATIME 0x80000000 /* enable strict update of file access time */
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/* backwards compatibility only */
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#define MNT_UNKNOWNPERMISSIONS MNT_IGNORE_OWNERSHIP
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/*
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* XXX I think that this could now become (~(MNT_CMDFLAGS))
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* but the 'mount' program may need changing to handle this.
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*/
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#define MNT_VISFLAGMASK (MNT_RDONLY | MNT_SYNCHRONOUS | MNT_NOEXEC | \
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MNT_NOSUID | MNT_NODEV | MNT_UNION | \
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MNT_ASYNC | MNT_EXPORTED | MNT_QUARANTINE | \
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MNT_LOCAL | MNT_QUOTA | MNT_REMOVABLE | \
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MNT_ROOTFS | MNT_DOVOLFS | MNT_DONTBROWSE | \
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MNT_IGNORE_OWNERSHIP | MNT_AUTOMOUNTED | MNT_JOURNALED | \
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MNT_NOUSERXATTR | MNT_DEFWRITE | MNT_MULTILABEL | \
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MNT_NOATIME | MNT_STRICTATIME | MNT_SNAPSHOT | MNT_CPROTECT)
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/*
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* External filesystem command modifier flags.
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* Unmount can use the MNT_FORCE flag.
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* XXX These are not STATES and really should be somewhere else.
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* External filesystem control flags.
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*/
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#define MNT_UPDATE 0x00010000 /* not a real mount, just an update */
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#define MNT_NOBLOCK 0x00020000 /* don't block unmount if not responding */
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#define MNT_RELOAD 0x00040000 /* reload filesystem data */
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#define MNT_FORCE 0x00080000 /* force unmount or readonly change */
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#define MNT_CMDFLAGS (MNT_UPDATE|MNT_NOBLOCK|MNT_RELOAD|MNT_FORCE)
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/*
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* Sysctl CTL_VFS definitions.
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*
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* Second level identifier specifies which filesystem. Second level
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* identifier VFS_GENERIC returns information about all filesystems.
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*/
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#define VFS_GENERIC 0 /* generic filesystem information */
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#define VFS_NUMMNTOPS 1 /* int: total num of vfs mount/unmount operations */
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/*
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* Third level identifiers for VFS_GENERIC are given below; third
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* level identifiers for specific filesystems are given in their
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* mount specific header files.
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*/
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#define VFS_MAXTYPENUM 1 /* int: highest defined filesystem type */
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#define VFS_CONF 2 /* struct: vfsconf for filesystem given
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* as next argument */
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/*
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* Flags for various system call interfaces.
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*
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* waitfor flags to vfs_sync() and getfsstat()
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*/
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#define MNT_WAIT 1 /* synchronized I/O file integrity completion */
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#define MNT_NOWAIT 2 /* start all I/O, but do not wait for it */
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#define MNT_DWAIT 4 /* synchronized I/O data integrity completion */
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#if !defined(KERNEL) && !defined(_KERN_SYS_KERNELTYPES_H_) /* also defined in kernel_types.h */
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struct mount;
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typedef struct mount * mount_t;
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struct vnode;
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typedef struct vnode * vnode_t;
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#endif
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/* Reserved fields preserve binary compatibility */
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struct vfsconf {
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uint32_t vfc_reserved1; /* opaque */
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char vfc_name[MFSNAMELEN]; /* filesystem type name */
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int vfc_typenum; /* historic filesystem type number */
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int vfc_refcount; /* number mounted of this type */
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int vfc_flags; /* permanent flags */
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uint32_t vfc_reserved2; /* opaque */
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uint32_t vfc_reserved3; /* opaque */
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};
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struct vfsidctl {
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int vc_vers; /* should be VFSIDCTL_VERS1 (below) */
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fsid_t vc_fsid; /* fsid to operate on. */
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void *vc_ptr; /* pointer to data structure. */
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size_t vc_len; /* sizeof said structure. */
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u_int32_t vc_spare[12]; /* spare (must be zero). */
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};
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/* vfsidctl API version. */
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#define VFS_CTL_VERS1 0x01
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/*
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* New style VFS sysctls, do not reuse/conflict with the namespace for
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* private sysctls.
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*/
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#define VFS_CTL_STATFS 0x00010001 /* statfs */
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#define VFS_CTL_UMOUNT 0x00010002 /* unmount */
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#define VFS_CTL_QUERY 0x00010003 /* anything wrong? (vfsquery) */
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#define VFS_CTL_NEWADDR 0x00010004 /* reconnect to new address */
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#define VFS_CTL_TIMEO 0x00010005 /* set timeout for vfs notification */
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#define VFS_CTL_NOLOCKS 0x00010006 /* disable file locking */
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#define VFS_CTL_SADDR 0x00010007 /* get server address */
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#define VFS_CTL_DISC 0x00010008 /* server disconnected */
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#define VFS_CTL_SERVERINFO 0x00010009 /* information about fs server */
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#define VFS_CTL_NSTATUS 0x0001000A /* netfs mount status */
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struct vfsquery {
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u_int32_t vq_flags;
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u_int32_t vq_spare[31];
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};
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struct vfs_server {
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int32_t vs_minutes; /* minutes until server goes down. */
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u_int8_t vs_server_name[MAXHOSTNAMELEN * 3]; /* UTF8 server name to display (null terminated) */
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};
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/*
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* NetFS mount status - returned by VFS_CTL_NSTATUS
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*/
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struct netfs_status {
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u_int32_t ns_status; // Current status of mount (vfsquery flags)
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char ns_mountopts[512]; // Significant mount options
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uint32_t ns_waittime; // Time waiting for reply (sec)
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uint32_t ns_threadcount; // Number of threads blocked on network calls
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uint64_t ns_threadids[0]; // Thread IDs of those blocked threads
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};
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/* vfsquery flags */
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#define VQ_NOTRESP 0x0001 /* server down */
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#define VQ_NEEDAUTH 0x0002 /* server bad auth */
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#define VQ_LOWDISK 0x0004 /* we're low on space */
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#define VQ_MOUNT 0x0008 /* new filesystem arrived */
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#define VQ_UNMOUNT 0x0010 /* filesystem has left */
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#define VQ_DEAD 0x0020 /* filesystem is dead, needs force unmount */
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#define VQ_ASSIST 0x0040 /* filesystem needs assistance from external program */
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#define VQ_NOTRESPLOCK 0x0080 /* server lockd down */
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#define VQ_UPDATE 0x0100 /* filesystem information has changed */
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#define VQ_VERYLOWDISK 0x0200 /* file system has *very* little disk space left */
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#define VQ_SYNCEVENT 0x0400 /* a sync just happened (not set by kernel starting Mac OS X 10.9) */
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#define VQ_SERVEREVENT 0x0800 /* server issued notification/warning */
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#define VQ_QUOTA 0x1000 /* a user quota has been hit */
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#define VQ_NEARLOWDISK 0x2000 /* Above lowdisk and below desired disk space */
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#define VQ_DESIRED_DISK 0x4000 /* the desired disk space */
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#define VQ_FREE_SPACE_CHANGE 0x8000 /* free disk space has significantly changed */
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#define VQ_FLAG10000 0x10000 /* placeholder */
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/*
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* Generic file handle
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*/
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#define NFS_MAX_FH_SIZE NFSV4_MAX_FH_SIZE
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#define NFSV4_MAX_FH_SIZE 128
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#define NFSV3_MAX_FH_SIZE 64
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#define NFSV2_MAX_FH_SIZE 32
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struct fhandle {
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unsigned int fh_len; /* length of file handle */
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unsigned char fh_data[NFS_MAX_FH_SIZE]; /* file handle value */
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};
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typedef struct fhandle fhandle_t;
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__BEGIN_DECLS
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int fhopen(const struct fhandle *, int);
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int fstatfs(int, struct statfs *) __DARWIN_INODE64(fstatfs);
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#if !__DARWIN_ONLY_64_BIT_INO_T
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int fstatfs64(int, struct statfs64 *) __OSX_AVAILABLE_BUT_DEPRECATED(__MAC_10_5, __MAC_10_6, __IPHONE_NA, __IPHONE_NA);
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#endif /* !__DARWIN_ONLY_64_BIT_INO_T */
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int getfh(const char *, fhandle_t *);
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int getfsstat(struct statfs *, int, int) __DARWIN_INODE64(getfsstat);
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#if !__DARWIN_ONLY_64_BIT_INO_T
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int getfsstat64(struct statfs64 *, int, int) __OSX_AVAILABLE_BUT_DEPRECATED(__MAC_10_5, __MAC_10_6, __IPHONE_NA, __IPHONE_NA);
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#endif /* !__DARWIN_ONLY_64_BIT_INO_T */
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int getmntinfo(struct statfs **, int) __DARWIN_INODE64(getmntinfo);
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int getmntinfo_r_np(struct statfs **, int) __DARWIN_INODE64(getmntinfo_r_np)
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__OSX_AVAILABLE(10.13) __IOS_AVAILABLE(11.0)
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__TVOS_AVAILABLE(11.0) __WATCHOS_AVAILABLE(4.0);
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#if !__DARWIN_ONLY_64_BIT_INO_T
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int getmntinfo64(struct statfs64 **, int) __OSX_AVAILABLE_BUT_DEPRECATED(__MAC_10_5, __MAC_10_6, __IPHONE_NA, __IPHONE_NA);
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#endif /* !__DARWIN_ONLY_64_BIT_INO_T */
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int mount(const char *, const char *, int, void *);
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int fmount(const char *, int, int, void *) __OSX_AVAILABLE(10.13) __IOS_AVAILABLE(11.0) __TVOS_AVAILABLE(11.0) __WATCHOS_AVAILABLE(4.0);
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int statfs(const char *, struct statfs *) __DARWIN_INODE64(statfs);
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#if !__DARWIN_ONLY_64_BIT_INO_T
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int statfs64(const char *, struct statfs64 *) __OSX_AVAILABLE_BUT_DEPRECATED(__MAC_10_5, __MAC_10_6, __IPHONE_NA, __IPHONE_NA);
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#endif /* !__DARWIN_ONLY_64_BIT_INO_T */
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int unmount(const char *, int);
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int getvfsbyname(const char *, struct vfsconf *);
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__END_DECLS
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#endif /* !_SYS_MOUNT_H_ */ |