1/* 2 * Copyright (c) 2000-2007 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ 29/*- 30 * Copyright (c) 1983, 1990, 1993 31 * The Regents of the University of California. All rights reserved. 32 * (c) UNIX System Laboratories, Inc. 33 * All or some portions of this file are derived from material licensed 34 * to the University of California by American Telephone and Telegraph 35 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 36 * the permission of UNIX System Laboratories, Inc. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 3. All advertising materials mentioning features or use of this software 47 * must display the following acknowledgement: 48 * This product includes software developed by the University of 49 * California, Berkeley and its contributors. 50 * 4. Neither the name of the University nor the names of its contributors 51 * may be used to endorse or promote products derived from this software 52 * without specific prior written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 64 * SUCH DAMAGE. 65 * 66 * @(#)fcntl.h 8.3 (Berkeley) 1/21/94 67 */ 68 69 70#ifndef _SYS_FCNTL_H_ 71#define _SYS_FCNTL_H_ 72 73/* 74 * This file includes the definitions for open and fcntl 75 * described by POSIX for <fcntl.h>; it also includes 76 * related kernel definitions. 77 */ 78#include <sys/_types.h> 79#include <sys/cdefs.h> 80#ifndef KERNEL 81#include <Availability.h> 82#endif 83 84/* We should not be exporting size_t here. Temporary for gcc bootstrapping. */ 85#ifndef _SIZE_T 86#define _SIZE_T 87typedef __darwin_size_t size_t; 88#endif 89 90#ifndef _MODE_T 91typedef __darwin_mode_t mode_t; 92#define _MODE_T 93#endif 94 95#ifndef _OFF_T 96typedef __darwin_off_t off_t; 97#define _OFF_T 98#endif 99 100#ifndef _PID_T 101typedef __darwin_pid_t pid_t; 102#define _PID_T 103#endif 104 105/* 106 * File status flags: these are used by open(2), fcntl(2). 107 * They are also used (indirectly) in the kernel file structure f_flags, 108 * which is a superset of the open/fcntl flags. Open flags and f_flags 109 * are inter-convertible using OFLAGS(fflags) and FFLAGS(oflags). 110 * Open/fcntl flags begin with O_; kernel-internal flags begin with F. 111 */ 112/* open-only flags */ 113#define O_RDONLY 0x0000 /* open for reading only */ 114#define O_WRONLY 0x0001 /* open for writing only */ 115#define O_RDWR 0x0002 /* open for reading and writing */ 116#define O_ACCMODE 0x0003 /* mask for above modes */ 117 118/* 119 * Kernel encoding of open mode; separate read and write bits that are 120 * independently testable: 1 greater than the above. 121 * 122 * XXX 123 * FREAD and FWRITE are excluded from the #ifdef KERNEL so that TIOCFLUSH, 124 * which was documented to use FREAD/FWRITE, continues to work. 125 */ 126#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 127#define FREAD 0x0001 128#define FWRITE 0x0002 129#endif 130#define O_NONBLOCK 0x0004 /* no delay */ 131#define O_APPEND 0x0008 /* set append mode */ 132#ifndef O_SYNC /* allow simultaneous inclusion of <aio.h> */ 133#define O_SYNC 0x0080 /* synch I/O file integrity */ 134#endif 135#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 136#define O_SHLOCK 0x0010 /* open with shared file lock */ 137#define O_EXLOCK 0x0020 /* open with exclusive file lock */ 138#define O_ASYNC 0x0040 /* signal pgrp when data ready */ 139#define O_FSYNC O_SYNC /* source compatibility: do not use */ 140#define O_NOFOLLOW 0x0100 /* don't follow symlinks */ 141#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 142#define O_CREAT 0x0200 /* create if nonexistant */ 143#define O_TRUNC 0x0400 /* truncate to zero length */ 144#define O_EXCL 0x0800 /* error if already exists */ 145#ifdef KERNEL 146#define FMARK 0x1000 /* mark during gc() */ 147#define FDEFER 0x2000 /* defer for next gc pass */ 148#define FHASLOCK 0x4000 /* descriptor holds advisory lock */ 149#endif 150#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 151#define O_EVTONLY 0x8000 /* descriptor requested for event notifications only */ 152#endif 153 154#ifdef KERNEL 155#define FWASWRITTEN 0x10000 /* descriptor was written */ 156#endif 157 158#define O_NOCTTY 0x20000 /* don't assign controlling terminal */ 159 160#ifdef KERNEL 161#define FNOCACHE 0x40000 /* fcntl(F_NOCACHE, 1) */ 162#define FNORDAHEAD 0x80000 /* fcntl(F_RDAHEAD, 0) */ 163#endif 164 165#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 166#define O_DIRECTORY 0x100000 167#define O_SYMLINK 0x200000 /* allow open of a symlink */ 168#endif 169 170#ifndef O_DSYNC /* allow simultaneous inclusion of <aio.h> */ 171#define O_DSYNC 0x400000 /* synch I/O data integrity */ 172#endif 173 174#ifdef KERNEL 175#define FNODIRECT 0x800000 /* fcntl(F_NODIRECT, 1) */ 176#endif 177 178#if __DARWIN_C_LEVEL >= 200809L 179#define O_CLOEXEC 0x1000000 /* implicitly set FD_CLOEXEC */ 180#endif 181 182#ifdef KERNEL 183#define FENCRYPTED 0x2000000 184#endif 185 186#ifdef KERNEL 187#define FSINGLE_WRITER 0x4000000 /* fcntl(F_SINGLE_WRITER, 1) */ 188#endif 189 190/* Data Protection Flags */ 191#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 192#define O_DP_GETRAWENCRYPTED 0x0001 193#endif 194 195 196#ifdef KERNEL 197/* convert from open() flags to/from fflags; convert O_RD/WR to FREAD/FWRITE */ 198#define FFLAGS(oflags) ((oflags) + 1) 199#define OFLAGS(fflags) ((fflags) - 1) 200 201/* bits to save after open */ 202#define FMASK (FREAD|FWRITE|FAPPEND|FASYNC|FFSYNC|FFDSYNC|FNONBLOCK) 203/* bits settable by fcntl(F_SETFL, ...) */ 204#define FCNTLFLAGS (FAPPEND|FASYNC|FFSYNC|FFDSYNC|FNONBLOCK) 205#endif 206 207/* 208 * The O_* flags used to have only F* names, which were used in the kernel 209 * and by fcntl. We retain the F* names for the kernel f_flags field 210 * and for backward compatibility for fcntl. 211 */ 212#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 213#define FAPPEND O_APPEND /* kernel/compat */ 214#define FASYNC O_ASYNC /* kernel/compat */ 215#define FFSYNC O_FSYNC /* kernel */ 216#define FFDSYNC O_DSYNC /* kernel */ 217#define FNONBLOCK O_NONBLOCK /* kernel */ 218#define FNDELAY O_NONBLOCK /* compat */ 219#define O_NDELAY O_NONBLOCK /* compat */ 220#endif 221 222/* 223 * Flags used for copyfile(2) 224 */ 225 226#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 227#define CPF_OVERWRITE 1 228#define CPF_IGNORE_MODE 2 229#define CPF_MASK (CPF_OVERWRITE|CPF_IGNORE_MODE) 230#endif 231 232/* 233 * Constants used for fcntl(2) 234 */ 235 236/* command values */ 237#define F_DUPFD 0 /* duplicate file descriptor */ 238#define F_GETFD 1 /* get file descriptor flags */ 239#define F_SETFD 2 /* set file descriptor flags */ 240#define F_GETFL 3 /* get file status flags */ 241#define F_SETFL 4 /* set file status flags */ 242#define F_GETOWN 5 /* get SIGIO/SIGURG proc/pgrp */ 243#define F_SETOWN 6 /* set SIGIO/SIGURG proc/pgrp */ 244#define F_GETLK 7 /* get record locking information */ 245#define F_SETLK 8 /* set record locking information */ 246#define F_SETLKW 9 /* F_SETLK; wait if blocked */ 247#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 248#define F_FLUSH_DATA 40 249#define F_CHKCLEAN 41 /* Used for regression test */ 250#define F_PREALLOCATE 42 /* Preallocate storage */ 251#define F_SETSIZE 43 /* Truncate a file without zeroing space */ 252#define F_RDADVISE 44 /* Issue an advisory read async with no copy to user */ 253#define F_RDAHEAD 45 /* turn read ahead off/on for this fd */ 254#define F_READBOOTSTRAP 46 /* Read bootstrap from disk */ 255#define F_WRITEBOOTSTRAP 47 /* Write bootstrap on disk */ 256#define F_NOCACHE 48 /* turn data caching off/on for this fd */ 257#define F_LOG2PHYS 49 /* file offset to device offset */ 258#define F_GETPATH 50 /* return the full path of the fd */ 259#define F_FULLFSYNC 51 /* fsync + ask the drive to flush to the media */ 260#define F_PATHPKG_CHECK 52 /* find which component (if any) is a package */ 261#define F_FREEZE_FS 53 /* "freeze" all fs operations */ 262#define F_THAW_FS 54 /* "thaw" all fs operations */ 263#define F_GLOBAL_NOCACHE 55 /* turn data caching off/on (globally) for this file */ 264 265#ifdef PRIVATE 266#define F_OPENFROM 56 /* SPI: open a file relative to fd (must be a dir) */ 267#define F_UNLINKFROM 57 /* SPI: open a file relative to fd (must be a dir) */ 268#define F_CHECK_OPENEVT 58 /* SPI: if a process is marked OPENEVT, or in O_EVTONLY on opens of this vnode */ 269#endif /* PRIVATE */ 270 271#define F_ADDSIGS 59 /* add detached signatures */ 272 273#define F_MARKDEPENDENCY 60 /* this process hosts the device supporting the fs backing this fd */ 274 275#define F_ADDFILESIGS 61 /* add signature from same file (used by dyld for shared libs) */ 276 277#define F_NODIRECT 62 /* used in conjunction with F_NOCACHE to indicate that DIRECT, synchonous writes */ 278 /* should not be used (i.e. its ok to temporaily create cached pages) */ 279 280#define F_GETPROTECTIONCLASS 63 /* Get the protection class of a file from the EA, returns int */ 281#define F_SETPROTECTIONCLASS 64 /* Set the protection class of a file for the EA, requires int */ 282 283#define F_LOG2PHYS_EXT 65 /* file offset to device offset, extended */ 284 285#define F_GETLKPID 66 /* get record locking information, per-process */ 286 287/* See F_DUPFD_CLOEXEC below for 67 */ 288 289#ifdef PRIVATE 290#define F_SETSTATICCONTENT 68 /* 291 * indicate to the filesystem/storage driver that the content to be 292 * written is usually static. a nonzero value enables it, 0 disables it. 293 */ 294#define F_MOVEDATAEXTENTS 69 /* Swap only the data associated with two files */ 295#endif 296 297#define F_SETBACKINGSTORE 70 /* Mark the file as being the backing store for another filesystem */ 298#define F_GETPATH_MTMINFO 71 /* return the full path of the FD, but error in specific mtmd circumstances */ 299 300/* 72 is free. It used to be F_GETENCRYPTEDDATA, which is now removed. */ 301 302#define F_SETNOSIGPIPE 73 /* No SIGPIPE generated on EPIPE */ 303#define F_GETNOSIGPIPE 74 /* Status of SIGPIPE for this fd */ 304 305#define F_TRANSCODEKEY 75 /* For some cases, we need to rewrap the key for AKS/MKB */ 306 307#define F_SINGLE_WRITER 76 /* file being written to a by single writer... if throttling enabled, writes */ 308 /* may be broken into smaller chunks with throttling in between */ 309 310#define F_GETPROTECTIONLEVEL 77 /* Get the protection version number for this filesystem */ 311 312 313// FS-specific fcntl()'s numbers begin at 0x00010000 and go up 314#define FCNTL_FS_SPECIFIC_BASE 0x00010000 315 316#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 317 318#if __DARWIN_C_LEVEL >= 200809L 319#define F_DUPFD_CLOEXEC 67 /* mark the dup with FD_CLOEXEC */ 320#endif 321 322/* file descriptor flags (F_GETFD, F_SETFD) */ 323#define FD_CLOEXEC 1 /* close-on-exec flag */ 324 325/* record locking flags (F_GETLK, F_SETLK, F_SETLKW) */ 326#define F_RDLCK 1 /* shared or read lock */ 327#define F_UNLCK 2 /* unlock */ 328#define F_WRLCK 3 /* exclusive or write lock */ 329#ifdef KERNEL 330#define F_WAIT 0x010 /* Wait until lock is granted */ 331#define F_FLOCK 0x020 /* Use flock(2) semantics for lock */ 332#define F_POSIX 0x040 /* Use POSIX semantics for lock */ 333#define F_PROV 0x080 /* Non-coalesced provisional lock */ 334#define F_WAKE1_SAFE 0x100 /* its safe to only wake one waiter */ 335#define F_ABORT 0x200 /* lock attempt aborted (force umount) */ 336#endif 337 338/* 339 * [XSI] The values used for l_whence shall be defined as described 340 * in <unistd.h> 341 */ 342#ifndef SEEK_SET 343#define SEEK_SET 0 /* set file offset to offset */ 344#define SEEK_CUR 1 /* set file offset to current plus offset */ 345#define SEEK_END 2 /* set file offset to EOF plus offset */ 346#endif /* !SEEK_SET */ 347 348/* 349 * [XSI] The symbolic names for file modes for use as values of mode_t 350 * shall be defined as described in <sys/stat.h> 351 */ 352#ifndef S_IFMT 353/* File type */ 354#define S_IFMT 0170000 /* [XSI] type of file mask */ 355#define S_IFIFO 0010000 /* [XSI] named pipe (fifo) */ 356#define S_IFCHR 0020000 /* [XSI] character special */ 357#define S_IFDIR 0040000 /* [XSI] directory */ 358#define S_IFBLK 0060000 /* [XSI] block special */ 359#define S_IFREG 0100000 /* [XSI] regular */ 360#define S_IFLNK 0120000 /* [XSI] symbolic link */ 361#define S_IFSOCK 0140000 /* [XSI] socket */ 362#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 363#define S_IFWHT 0160000 /* OBSOLETE: whiteout */ 364#endif 365 366/* File mode */ 367/* Read, write, execute/search by owner */ 368#define S_IRWXU 0000700 /* [XSI] RWX mask for owner */ 369#define S_IRUSR 0000400 /* [XSI] R for owner */ 370#define S_IWUSR 0000200 /* [XSI] W for owner */ 371#define S_IXUSR 0000100 /* [XSI] X for owner */ 372/* Read, write, execute/search by group */ 373#define S_IRWXG 0000070 /* [XSI] RWX mask for group */ 374#define S_IRGRP 0000040 /* [XSI] R for group */ 375#define S_IWGRP 0000020 /* [XSI] W for group */ 376#define S_IXGRP 0000010 /* [XSI] X for group */ 377/* Read, write, execute/search by others */ 378#define S_IRWXO 0000007 /* [XSI] RWX mask for other */ 379#define S_IROTH 0000004 /* [XSI] R for other */ 380#define S_IWOTH 0000002 /* [XSI] W for other */ 381#define S_IXOTH 0000001 /* [XSI] X for other */ 382 383#define S_ISUID 0004000 /* [XSI] set user id on execution */ 384#define S_ISGID 0002000 /* [XSI] set group id on execution */ 385#define S_ISVTX 0001000 /* [XSI] directory restrcted delete */ 386 387#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 388#define S_ISTXT S_ISVTX /* sticky bit: not supported */ 389#define S_IREAD S_IRUSR /* backward compatability */ 390#define S_IWRITE S_IWUSR /* backward compatability */ 391#define S_IEXEC S_IXUSR /* backward compatability */ 392#endif 393#endif /* !S_IFMT */ 394 395#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 396/* allocate flags (F_PREALLOCATE) */ 397 398#define F_ALLOCATECONTIG 0x00000002 /* allocate contigious space */ 399#define F_ALLOCATEALL 0x00000004 /* allocate all requested space or no space at all */ 400 401/* Position Modes (fst_posmode) for F_PREALLOCATE */ 402 403#define F_PEOFPOSMODE 3 /* Make it past all of the SEEK pos modes so that */ 404 /* we can keep them in sync should we desire */ 405#define F_VOLPOSMODE 4 /* specify volume starting postion */ 406#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 407 408/* 409 * Advisory file segment locking data type - 410 * information passed to system by user 411 */ 412struct flock { 413 off_t l_start; /* starting offset */ 414 off_t l_len; /* len = 0 means until end of file */ 415 pid_t l_pid; /* lock owner */ 416 short l_type; /* lock type: read/write, etc. */ 417 short l_whence; /* type of l_start */ 418}; 419 420#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 421/* 422 * advisory file read data type - 423 * information passed by user to system 424 */ 425 426#ifdef KERNEL 427#pragma pack(4) /* prevent structure padding in kernel */ 428#endif /* KERNEL */ 429 430struct radvisory { 431 off_t ra_offset; 432 int ra_count; 433}; 434 435#ifdef KERNEL 436#pragma pack() 437#endif /* KERNEL */ 438 439/* 440 * detached code signatures data type - 441 * information passed by user to system used by F_ADDSIGS and F_ADDFILESIGS. 442 * F_ADDFILESIGS is a shortcut for files that contain their own signature and 443 * doesn't require mapping of the file in order to load the signature. 444 */ 445typedef struct fsignatures { 446 off_t fs_file_start; 447 void *fs_blob_start; 448 size_t fs_blob_size; 449} fsignatures_t; 450#ifdef KERNEL 451/* LP64 version of fsignatures. all pointers 452 * grow when we're dealing with a 64-bit process. 453 * WARNING - keep in sync with fsignatures 454 */ 455 456typedef struct user32_fsignatures { 457 off_t fs_file_start; 458 user32_addr_t fs_blob_start; 459 user32_size_t fs_blob_size; 460} user32_fsignatures_t; 461 462typedef struct user_fsignatures { 463 off_t fs_file_start; /* offset of Mach-O image in FAT file */ 464 user_addr_t fs_blob_start; /* F_ADDSIGS: mem address of signature*/ 465 /* F_ADDFILESIGS: offset of signature */ 466 /* in Mach-O image */ 467 user_size_t fs_blob_size; /* size of signature blob */ 468} user_fsignatures_t; 469#endif /* KERNEL */ 470 471/* lock operations for flock(2) */ 472#define LOCK_SH 0x01 /* shared file lock */ 473#define LOCK_EX 0x02 /* exclusive file lock */ 474#define LOCK_NB 0x04 /* don't block when locking */ 475#define LOCK_UN 0x08 /* unlock file */ 476 477/* fstore_t type used by F_DEALLOCATE and F_PREALLOCATE commands */ 478 479typedef struct fstore { 480 unsigned int fst_flags; /* IN: flags word */ 481 int fst_posmode; /* IN: indicates use of offset field */ 482 off_t fst_offset; /* IN: start of the region */ 483 off_t fst_length; /* IN: size of the region */ 484 off_t fst_bytesalloc; /* OUT: number of bytes allocated */ 485} fstore_t; 486 487/* fbootstraptransfer_t used by F_READBOOTSTRAP and F_WRITEBOOTSTRAP commands */ 488 489typedef struct fbootstraptransfer { 490 off_t fbt_offset; /* IN: offset to start read/write */ 491 size_t fbt_length; /* IN: number of bytes to transfer */ 492 void *fbt_buffer; /* IN: buffer to be read/written */ 493} fbootstraptransfer_t; 494 495#ifdef KERNEL 496/* LP64 version of fbootstraptransfer. all pointers 497 * grow when we're dealing with a 64-bit process. 498 * WARNING - keep in sync with fbootstraptransfer 499 */ 500 501typedef struct user32_fbootstraptransfer { 502 off_t fbt_offset; /* IN: offset to start read/write */ 503 user32_size_t fbt_length; /* IN: number of bytes to transfer */ 504 user32_addr_t fbt_buffer; /* IN: buffer to be read/written */ 505} user32_fbootstraptransfer_t; 506 507typedef struct user_fbootstraptransfer { 508 off_t fbt_offset; /* IN: offset to start read/write */ 509 user_size_t fbt_length; /* IN: number of bytes to transfer */ 510 user_addr_t fbt_buffer; /* IN: buffer to be read/written */ 511} user_fbootstraptransfer_t; 512 513#endif // KERNEL 514 515/* 516 * For F_LOG2PHYS this information is passed back to user 517 * Currently only devoffset is returned - that is the VOP_BMAP 518 * result - the disk device address corresponding to the 519 * current file offset (likely set with an lseek). 520 * 521 * The flags could hold an indication of whether the # of 522 * contiguous bytes reflects the true extent length on disk, 523 * or is an advisory value that indicates there is at least that 524 * many bytes contiguous. For some filesystems it might be too 525 * inefficient to provide anything beyond the advisory value. 526 * Flags and contiguous bytes return values are not yet implemented. 527 * For them the fcntl will nedd to switch from using BMAP to CMAP 528 * and a per filesystem type flag will be needed to interpret the 529 * contiguous bytes count result from CMAP. 530 * 531 * F_LOG2PHYS_EXT is a variant of F_LOG2PHYS that uses a passed in 532 * file offset and length instead of the current file offset. 533 * F_LOG2PHYS_EXT operates on the same structure as F_LOG2PHYS, but 534 * treats it as an in/out. 535 */ 536#pragma pack(4) 537 538struct log2phys { 539 unsigned int l2p_flags; /* unused so far */ 540 off_t l2p_contigbytes; /* F_LOG2PHYS: unused so far */ 541 /* F_LOG2PHYS_EXT: IN: number of bytes to be queried */ 542 /* OUT: number of contiguous bytes at this position */ 543 off_t l2p_devoffset; /* F_LOG2PHYS: OUT: bytes into device */ 544 /* F_LOG2PHYS_EXT: IN: bytes into file */ 545 /* OUT: bytes into device */ 546}; 547 548#pragma pack() 549 550#define O_POPUP 0x80000000 /* force window to popup on open */ 551#define O_ALERT 0x20000000 /* small, clean popup window */ 552 553#ifdef PRIVATE 554/* 555 * SPI: Argument data for F_OPENFROM 556 */ 557struct fopenfrom { 558 unsigned int o_flags; /* same as open(2) */ 559 mode_t o_mode; /* same as open(2) */ 560 char * o_pathname; /* relative pathname */ 561}; 562 563#ifdef KERNEL 564/* 565 * LP64 version of fopenfrom. Memory pointers 566 * grow when we're dealing with a 64-bit process. 567 * 568 * WARNING - keep in sync with fopenfrom (above) 569 */ 570struct user32_fopenfrom { 571 unsigned int o_flags; 572 mode_t o_mode; 573 user32_addr_t o_pathname; 574}; 575 576struct user_fopenfrom { 577 unsigned int o_flags; 578 mode_t o_mode; 579 user_addr_t o_pathname; 580}; 581#endif /* KERNEL */ 582 583#endif /* PRIVATE */ 584 585#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 586 587#ifndef KERNEL 588 589#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 590#ifndef _FILESEC_T 591struct _filesec; 592typedef struct _filesec *filesec_t; 593#define _FILESEC_T 594#endif 595typedef enum { 596 FILESEC_OWNER = 1, 597 FILESEC_GROUP = 2, 598 FILESEC_UUID = 3, 599 FILESEC_MODE = 4, 600 FILESEC_ACL = 5, 601 FILESEC_GRPUUID = 6, 602 603/* XXX these are private to the implementation */ 604 FILESEC_ACL_RAW = 100, 605 FILESEC_ACL_ALLOCSIZE = 101 606} filesec_property_t; 607 608/* XXX backwards compatibility */ 609#define FILESEC_GUID FILESEC_UUID 610#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 611 612__BEGIN_DECLS 613int open(const char *, int, ...) __DARWIN_ALIAS_C(open); 614int creat(const char *, mode_t) __DARWIN_ALIAS_C(creat); 615int fcntl(int, int, ...) __DARWIN_ALIAS_C(fcntl); 616#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 617 618#ifdef PRIVATE 619/* 620 * These definitions are retained temporarily for compatibility. 621 * If you want to use fileports, please use 622 * #include <sys/fileport.h> 623 * or 624 * #include <System/sys/fileport.h> 625 */ 626#ifndef _FILEPORT_T 627#define _FILEPORT_T 628typedef __darwin_mach_port_t fileport_t; 629#define FILEPORT_NULL ((fileport_t)0) 630#endif /* _FILEPORT_T */ 631 632int fileport_makeport(int, fileport_t*); 633int fileport_makefd(fileport_t); 634#endif /* PRIVATE */ 635int openx_np(const char *, int, filesec_t); 636/* data-protected non-portable open(2) */ 637int open_dprotected_np ( const char *, int, int, int, ...); 638int flock(int, int); 639filesec_t filesec_init(void); 640filesec_t filesec_dup(filesec_t); 641void filesec_free(filesec_t); 642int filesec_get_property(filesec_t, filesec_property_t, void *); 643int filesec_query_property(filesec_t, filesec_property_t, int *); 644int filesec_set_property(filesec_t, filesec_property_t, const void *); 645int filesec_unset_property(filesec_t, filesec_property_t) __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_2); 646#define _FILESEC_UNSET_PROPERTY ((void *)0) 647#define _FILESEC_REMOVE_ACL ((void *)1) 648#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 649__END_DECLS 650#endif 651 652#endif /* !_SYS_FCNTL_H_ */ 653