bsd/sys/fcntl.h

   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
  81 /* We should not be exporting size_t here.  Temporary for gcc bootstrapping. */
  82 #ifndef _SIZE_T
  83 #define _SIZE_T
  84 typedef __darwin_size_t size_t;
  85 #endif
  86
  87 #ifndef _MODE_T
  88 typedef __darwin_mode_t mode_t;
  89 #define _MODE_T
  90 #endif
  91
  92 #ifndef _OFF_T
  93 typedef __darwin_off_t  off_t;
  94 #define _OFF_T
  95 #endif
  96
  97 #ifndef _PID_T
  98 typedef __darwin_pid_t  pid_t;
  99 #define _PID_T
 100 #endif
 101
 102 /*
 103  * File status flags: these are used by open(2), fcntl(2).
 104  * They are also used (indirectly) in the kernel file structure f_flags,
 105  * which is a superset of the open/fcntl flags.  Open flags and f_flags
 106  * are inter-convertible using OFLAGS(fflags) and FFLAGS(oflags).
 107  * Open/fcntl flags begin with O_; kernel-internal flags begin with F.
 108  */
 109 /* open-only flags */
 110 #define O_RDONLY        0x0000          /* open for reading only */
 111 #define O_WRONLY        0x0001          /* open for writing only */
 112 #define O_RDWR          0x0002          /* open for reading and writing */
 113 #define O_ACCMODE       0x0003          /* mask for above modes */
 114
 115 /*
 116  * Kernel encoding of open mode; separate read and write bits that are
 117  * independently testable: 1 greater than the above.
 118  *
 119  * XXX
 120  * FREAD and FWRITE are excluded from the #ifdef KERNEL so that TIOCFLUSH,
 121  * which was documented to use FREAD/FWRITE, continues to work.
 122  */
 123 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 124 #define FREAD           0x0001
 125 #define FWRITE          0x0002
 126 #endif
 127 #define O_NONBLOCK      0x0004          /* no delay */
 128 #define O_APPEND        0x0008          /* set append mode */
 129 #define O_SYNC          0x0080          /* synchronous writes */
 130 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 131 #define O_SHLOCK        0x0010          /* open with shared file lock */
 132 #define O_EXLOCK        0x0020          /* open with exclusive file lock */
 133 #define O_ASYNC         0x0040          /* signal pgrp when data ready */
 134 #define O_FSYNC         O_SYNC          /* source compatibility: do not use */
 135 #define O_NOFOLLOW  0x0100      /* don't follow symlinks */
 136 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
 137 #define O_CREAT         0x0200          /* create if nonexistant */
 138 #define O_TRUNC         0x0400          /* truncate to zero length */
 139 #define O_EXCL          0x0800          /* error if already exists */
 140 #ifdef KERNEL
 141 #define FMARK           0x1000          /* mark during gc() */
 142 #define FDEFER          0x2000          /* defer for next gc pass */
 143 #define FHASLOCK        0x4000          /* descriptor holds advisory lock */
 144 #endif
 145 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 146 #define O_EVTONLY       0x8000          /* descriptor requested for event notifications only */
 147 #endif
 148
 149 #ifdef KERNEL
 150 #define FWASWRITTEN     0x10000         /* descriptor was written */
 151 #endif
 152
 153 #define O_NOCTTY        0x20000         /* don't assign controlling terminal */
 154
 155 #ifdef KERNEL
 156 #define FNOCACHE        0x40000         /* fcntl(F_NOCACHE, 1) */
 157 #define FNORDAHEAD      0x80000         /* fcntl(F_RDAHEAD, 0) */
 158 #endif
 159
 160 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 161 #define O_DIRECTORY     0x100000
 162 #define O_SYMLINK       0x200000        /* allow open of a symlink */
 163 #endif
 164
 165 //#define       O_SYNC  /* ??? POSIX: Write according to synchronized I/O file integrity completion */
 166
 167 #ifdef KERNEL
 168 /* convert from open() flags to/from fflags; convert O_RD/WR to FREAD/FWRITE */
 169 #define FFLAGS(oflags)  ((oflags) + 1)
 170 #define OFLAGS(fflags)  ((fflags) - 1)
 171
 172 /* bits to save after open */
 173 #define FMASK           (FREAD|FWRITE|FAPPEND|FASYNC|FFSYNC|FNONBLOCK)
 174 /* bits settable by fcntl(F_SETFL, ...) */
 175 #define FCNTLFLAGS      (FAPPEND|FASYNC|FFSYNC|FNONBLOCK)
 176 #endif
 177
 178 /*
 179  * The O_* flags used to have only F* names, which were used in the kernel
 180  * and by fcntl.  We retain the F* names for the kernel f_flags field
 181  * and for backward compatibility for fcntl.
 182  */
 183 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 184 #define FAPPEND         O_APPEND        /* kernel/compat */
 185 #define FASYNC          O_ASYNC         /* kernel/compat */
 186 #define FFSYNC          O_FSYNC         /* kernel */
 187 #define FNONBLOCK       O_NONBLOCK      /* kernel */
 188 #define FNDELAY         O_NONBLOCK      /* compat */
 189 #define O_NDELAY        O_NONBLOCK      /* compat */
 190 #endif
 191
 192 /*
 193  * Flags used for copyfile(2)
 194  */
 195
 196 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 197 #define CPF_OVERWRITE 1
 198 #define CPF_IGNORE_MODE 2
 199 #define CPF_MASK (CPF_OVERWRITE|CPF_IGNORE_MODE)
 200 #endif
 201
 202 /*
 203  * Constants used for fcntl(2)
 204  */
 205
 206 /* command values */
 207 #define F_DUPFD         0               /* duplicate file descriptor */
 208 #define F_GETFD         1               /* get file descriptor flags */
 209 #define F_SETFD         2               /* set file descriptor flags */
 210 #define F_GETFL         3               /* get file status flags */
 211 #define F_SETFL         4               /* set file status flags */
 212 #define F_GETOWN        5               /* get SIGIO/SIGURG proc/pgrp */
 213 #define F_SETOWN        6               /* set SIGIO/SIGURG proc/pgrp */
 214 #define F_GETLK         7               /* get record locking information */
 215 #define F_SETLK         8               /* set record locking information */
 216 #define F_SETLKW        9               /* F_SETLK; wait if blocked */
 217 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 218 #define F_CHKCLEAN      41              /* Used for regression test */
 219 #define F_PREALLOCATE   42              /* Preallocate storage */
 220 #define F_SETSIZE       43              /* Truncate a file without zeroing space */
 221 #define F_RDADVISE      44              /* Issue an advisory read async with no copy to user */
 222 #define F_RDAHEAD       45              /* turn read ahead off/on for this fd */
 223 #define F_READBOOTSTRAP 46              /* Read bootstrap from disk */
 224 #define F_WRITEBOOTSTRAP 47             /* Write bootstrap on disk */
 225 #define F_NOCACHE       48              /* turn data caching off/on for this fd */
 226 #define F_LOG2PHYS      49              /* file offset to device offset */
 227 #define F_GETPATH       50              /* return the full path of the fd */
 228 #define F_FULLFSYNC     51              /* fsync + ask the drive to flush to the media */
 229 #define F_PATHPKG_CHECK 52              /* find which component (if any) is a package */
 230 #define F_FREEZE_FS     53              /* "freeze" all fs operations */
 231 #define F_THAW_FS       54              /* "thaw" all fs operations */
 232 #define F_GLOBAL_NOCACHE 55             /* turn data caching off/on (globally) for this file */
 233
 234 #ifdef PRIVATE
 235 #define F_OPENFROM      56              /* SPI: open a file relative to fd (must be a dir) */
 236 #define F_UNLINKFROM    57              /* SPI: open a file relative to fd (must be a dir) */
 237 #define F_CHECK_OPENEVT 58              /* SPI: if a process is marked OPENEVT, or in O_EVTONLY on opens of this vnode */
 238 #endif /* PRIVATE */
 239
 240 #define F_ADDSIGS       59              /* add detached signatures */
 241
 242 #define F_MARKDEPENDENCY 60             /* this process hosts the device supporting the fs backing this fd */
 243
 244 // FS-specific fcntl()'s numbers begin at 0x00010000 and go up
 245 #define FCNTL_FS_SPECIFIC_BASE  0x00010000
 246
 247 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
 248
 249 /* file descriptor flags (F_GETFD, F_SETFD) */
 250 #define FD_CLOEXEC      1               /* close-on-exec flag */
 251
 252 /* record locking flags (F_GETLK, F_SETLK, F_SETLKW) */
 253 #define F_RDLCK         1               /* shared or read lock */
 254 #define F_UNLCK         2               /* unlock */
 255 #define F_WRLCK         3               /* exclusive or write lock */
 256 #ifdef KERNEL
 257 #define F_WAIT          0x010           /* Wait until lock is granted */
 258 #define F_FLOCK         0x020           /* Use flock(2) semantics for lock */
 259 #define F_POSIX         0x040           /* Use POSIX semantics for lock */
 260 #define F_PROV          0x080           /* Non-coelesced provisional lock */
 261 #endif
 262
 263 /*
 264  * [XSI] The values used for l_whence shall be defined as described
 265  * in <unistd.h>
 266  */
 267 #ifndef SEEK_SET
 268 #define SEEK_SET        0       /* set file offset to offset */
 269 #define SEEK_CUR        1       /* set file offset to current plus offset */
 270 #define SEEK_END        2       /* set file offset to EOF plus offset */
 271 #endif  /* !SEEK_SET */
 272
 273 /*
 274  * [XSI] The symbolic names for file modes for use as values of mode_t
 275  * shall be defined as described in <sys/stat.h>
 276  */
 277 #ifndef S_IFMT
 278 /* File type */
 279 #define S_IFMT          0170000         /* [XSI] type of file mask */
 280 #define S_IFIFO         0010000         /* [XSI] named pipe (fifo) */
 281 #define S_IFCHR         0020000         /* [XSI] character special */
 282 #define S_IFDIR         0040000         /* [XSI] directory */
 283 #define S_IFBLK         0060000         /* [XSI] block special */
 284 #define S_IFREG         0100000         /* [XSI] regular */
 285 #define S_IFLNK         0120000         /* [XSI] symbolic link */
 286 #define S_IFSOCK        0140000         /* [XSI] socket */
 287 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 288 #define S_IFWHT         0160000         /* whiteout */
 289 #define S_IFXATTR       0200000         /* extended attribute */
 290 #endif
 291
 292 /* File mode */
 293 /* Read, write, execute/search by owner */
 294 #define S_IRWXU         0000700         /* [XSI] RWX mask for owner */
 295 #define S_IRUSR         0000400         /* [XSI] R for owner */
 296 #define S_IWUSR         0000200         /* [XSI] W for owner */
 297 #define S_IXUSR         0000100         /* [XSI] X for owner */
 298 /* Read, write, execute/search by group */
 299 #define S_IRWXG         0000070         /* [XSI] RWX mask for group */
 300 #define S_IRGRP         0000040         /* [XSI] R for group */
 301 #define S_IWGRP         0000020         /* [XSI] W for group */
 302 #define S_IXGRP         0000010         /* [XSI] X for group */
 303 /* Read, write, execute/search by others */
 304 #define S_IRWXO         0000007         /* [XSI] RWX mask for other */
 305 #define S_IROTH         0000004         /* [XSI] R for other */
 306 #define S_IWOTH         0000002         /* [XSI] W for other */
 307 #define S_IXOTH         0000001         /* [XSI] X for other */
 308
 309 #define S_ISUID         0004000         /* [XSI] set user id on execution */
 310 #define S_ISGID         0002000         /* [XSI] set group id on execution */
 311 #define S_ISVTX         0001000         /* [XSI] directory restrcted delete */
 312
 313 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 314 #define S_ISTXT         S_ISVTX         /* sticky bit: not supported */
 315 #define S_IREAD         S_IRUSR         /* backward compatability */
 316 #define S_IWRITE        S_IWUSR         /* backward compatability */
 317 #define S_IEXEC         S_IXUSR         /* backward compatability */
 318 #endif
 319 #endif  /* !S_IFMT */
 320
 321 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 322 /* allocate flags (F_PREALLOCATE) */
 323
 324 #define F_ALLOCATECONTIG  0x00000002    /* allocate contigious space */
 325 #define F_ALLOCATEALL     0x00000004    /* allocate all requested space or no space at all */
 326
 327 /* Position Modes (fst_posmode) for F_PREALLOCATE */
 328
 329 #define F_PEOFPOSMODE 3                 /* Make it past all of the SEEK pos modes so that */
 330                                         /* we can keep them in sync should we desire */
 331 #define F_VOLPOSMODE    4               /* specify volume starting postion */
 332 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
 333
 334 /*
 335  * Advisory file segment locking data type -
 336  * information passed to system by user
 337  */
 338 struct flock {
 339         off_t   l_start;        /* starting offset */
 340         off_t   l_len;          /* len = 0 means until end of file */
 341         pid_t   l_pid;          /* lock owner */
 342         short   l_type;         /* lock type: read/write, etc. */
 343         short   l_whence;       /* type of l_start */
 344 };
 345
 346
 347 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 348 /*
 349  * advisory file read data type -
 350  * information passed by user to system
 351  */
 352 struct radvisory {
 353        off_t   ra_offset;
 354        int     ra_count;
 355 };
 356
 357 /*
 358  * detached code signatures data type -
 359  * information passed by user to system
 360  * used by F_ADDSIGS
 361  */
 362 typedef struct fsignatures {
 363         off_t           fs_file_start;
 364         void            *fs_blob_start;
 365         size_t          fs_blob_size;
 366 } fsignatures_t;
 367 #ifdef KERNEL
 368 /* LP64 version of fsignatures.  all pointers
 369  * grow when we're dealing with a 64-bit process.
 370  * WARNING - keep in sync with fsignatures
 371  */
 372 typedef struct user_fsignatures {
 373         off_t           fs_file_start;
 374         user_addr_t     fs_blob_start;
 375         user_size_t     fs_blob_size;
 376 } user_fsignatures_t;
 377 #endif /* KERNEL */
 378
 379 /* lock operations for flock(2) */
 380 #define LOCK_SH         0x01            /* shared file lock */
 381 #define LOCK_EX         0x02            /* exclusive file lock */
 382 #define LOCK_NB         0x04            /* don't block when locking */
 383 #define LOCK_UN         0x08            /* unlock file */
 384
 385 /*  fstore_t type used by F_DEALLOCATE and F_PREALLOCATE commands */
 386
 387 typedef struct fstore {
 388         unsigned int fst_flags; /* IN: flags word */
 389         int     fst_posmode;    /* IN: indicates use of offset field */
 390         off_t   fst_offset;     /* IN: start of the region */
 391         off_t   fst_length;     /* IN: size of the region */
 392         off_t   fst_bytesalloc; /* OUT: number of bytes allocated */
 393 } fstore_t;
 394
 395 /* fbootstraptransfer_t used by F_READBOOTSTRAP and F_WRITEBOOTSTRAP commands */
 396
 397 typedef struct fbootstraptransfer {
 398   off_t fbt_offset;             /* IN: offset to start read/write */
 399   size_t fbt_length;          /* IN: number of bytes to transfer */
 400   void *fbt_buffer;             /* IN: buffer to be read/written */
 401 } fbootstraptransfer_t;
 402
 403
 404 #ifdef KERNEL
 405 /* LP64 version of fbootstraptransfer.  all pointers
 406  * grow when we're dealing with a 64-bit process.
 407  * WARNING - keep in sync with fbootstraptransfer
 408  */
 409
 410 typedef struct user_fbootstraptransfer {
 411   off_t fbt_offset;             /* IN: offset to start read/write */
 412   user_size_t fbt_length;               /* IN: number of bytes to transfer */
 413   user_addr_t fbt_buffer;               /* IN: buffer to be read/written */
 414 } user_fbootstraptransfer_t;
 415
 416 #endif // KERNEL
 417
 418 /*
 419  * For F_LOG2PHYS this information is passed back to user
 420  * Currently only devoffset is returned - that is the VOP_BMAP
 421  * result - the disk device address corresponding to the
 422  * current file offset (likely set with an lseek).
 423  *
 424  * The flags could hold an indication of whether the # of
 425  * contiguous bytes reflects the true extent length on disk,
 426  * or is an advisory value that indicates there is at least that
 427  * many bytes contiguous.  For some filesystems it might be too
 428  * inefficient to provide anything beyond the advisory value.
 429  * Flags and contiguous bytes return values are not yet implemented.
 430  * For them the fcntl will nedd to switch from using BMAP to CMAP
 431  * and a per filesystem type flag will be needed to interpret the
 432  * contiguous bytes count result from CMAP.
 433  */
 434 #pragma pack(4)
 435
 436 struct log2phys {
 437         unsigned int    l2p_flags;              /* unused so far */
 438         off_t           l2p_contigbytes;        /* unused so far */
 439         off_t           l2p_devoffset;  /* bytes into device */
 440 };
 441
 442 #pragma pack()
 443
 444 #define O_POPUP    0x80000000   /* force window to popup on open */
 445 #define O_ALERT    0x20000000   /* small, clean popup window */
 446
 447 #ifdef PRIVATE
 448 /*
 449  * SPI: Argument data for F_OPENFROM
 450  */
 451 struct fopenfrom {
 452         unsigned int    o_flags;        /* same as open(2) */
 453         mode_t          o_mode;         /* same as open(2) */
 454         char *          o_pathname;     /* relative pathname */
 455 };
 456
 457 #ifdef KERNEL
 458 /*
 459  * LP64 version of fopenfrom.  Memory pointers
 460  * grow when we're dealing with a 64-bit process.
 461  *
 462  * WARNING - keep in sync with fopenfrom (above)
 463  */
 464 struct user_fopenfrom {
 465         unsigned int    o_flags;
 466         mode_t          o_mode;
 467         user_addr_t     o_pathname;
 468 };
 469 #endif /* KERNEL */
 470
 471 #endif /* PRIVATE */
 472
 473 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
 474
 475 #ifndef KERNEL
 476
 477 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 478 #ifndef _FILESEC_T
 479 struct _filesec;
 480 typedef struct _filesec *filesec_t;
 481 #define _FILESEC_T
 482 #endif
 483 typedef enum {
 484         FILESEC_OWNER = 1,
 485         FILESEC_GROUP = 2,
 486         FILESEC_UUID = 3,
 487         FILESEC_MODE = 4,
 488         FILESEC_ACL = 5,
 489         FILESEC_GRPUUID = 6,
 490
 491 /* XXX these are private to the implementation */
 492         FILESEC_ACL_RAW = 100,
 493         FILESEC_ACL_ALLOCSIZE = 101
 494 } filesec_property_t;
 495
 496 /* XXX backwards compatibility */
 497 #define FILESEC_GUID FILESEC_UUID
 498 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
 499
 500 __BEGIN_DECLS
 501 int     open(const char *, int, ...) __DARWIN_ALIAS_C(open);
 502 int     creat(const char *, mode_t) __DARWIN_ALIAS_C(creat);
 503 int     fcntl(int, int, ...) __DARWIN_ALIAS_C(fcntl);
 504 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 505 int     openx_np(const char *, int, filesec_t);
 506 int     flock(int, int);
 507 filesec_t filesec_init(void);
 508 filesec_t filesec_dup(filesec_t);
 509 void    filesec_free(filesec_t);
 510 int     filesec_get_property(filesec_t, filesec_property_t, void *);
 511 int     filesec_set_property(filesec_t, filesec_property_t, const void *);
 512 int     filesec_query_property(filesec_t, filesec_property_t, int *);
 513 #define _FILESEC_UNSET_PROPERTY ((void *)0)
 514 #define _FILESEC_REMOVE_ACL     ((void *)1)
 515 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
 516 __END_DECLS
 517 #endif
 518
 519 #endif /* !_SYS_FCNTL_H_ */