/*- * Copyright (c) 1989, 1993 * The Regents of the University of California. All rights reserved. * * 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. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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. * * @(#)unistd.h 8.2 (Berkeley) 1/7/94 * $FreeBSD: src/sys/sys/unistd.h,v 1.50 2009/01/31 10:04:36 trhodes Exp $ */ #ifndef _SYS_UNISTD_H_ #define _SYS_UNISTD_H_ #include <sys/cdefs.h> /* * POSIX options and option groups we unconditionally do or don't * implement. Those options which are implemented (or not) entirely * in user mode are defined in <unistd.h>. Please keep this list in * alphabetical order. * * Anything which is defined as zero below **must** have an * implementation for the corresponding sysconf() which is able to * determine conclusively whether or not the feature is supported. * Anything which is defined as other than -1 below **must** have * complete headers, types, and function declarations as specified by * the POSIX standard; however, if the relevant sysconf() function * returns -1, the functions may be stubbed out. */ #define _POSIX_ADVISORY_INFO -1 /* [ADV] */ #define _POSIX_ASYNCHRONOUS_IO 0 /* mandatory ([AIO]) */ #define _POSIX_BARRIERS 200112L /* mandatory ([BAR]) */ #define _POSIX_CHOWN_RESTRICTED 1 #define _POSIX_CLOCK_SELECTION -1 /* XXX mandatory ([CS]) */ #define _POSIX_CPUTIME 200112L /* [CPT] */ #define _POSIX_FSYNC 200112L /* [FSC] */ #define _POSIX_IPV6 0 #define _POSIX_JOB_CONTROL 1 /* mandatory */ #define _POSIX_MAPPED_FILES 200112L /* mandatory ([MF]) */ #define _POSIX_MEMLOCK -1 /* [ML] */ #define _POSIX_MEMLOCK_RANGE 200112L /* [MLR] */ #define _POSIX_MEMORY_PROTECTION 200112L /* mandatory ([MPR]) */ #define _POSIX_MESSAGE_PASSING 200112L /* [MSG] */ #define _POSIX_MONOTONIC_CLOCK 200112L /* [MON] */ #define _POSIX_NO_TRUNC 1 #define _POSIX_PRIORITIZED_IO -1 /* [PIO] */ #define _POSIX_PRIORITY_SCHEDULING 200112L /* [PS] */ #define _POSIX_RAW_SOCKETS 200112L /* [RS] */ #define _POSIX_REALTIME_SIGNALS 200112L /* mandatory ([RTS]) */ #define _POSIX_SEMAPHORES 200112L /* mandatory ([SEM]) */ #define _POSIX_SHARED_MEMORY_OBJECTS 200112L /* [SHM] */ #define _POSIX_SPIN_LOCKS 200112L /* mandatory ([SPI]) */ #define _POSIX_SPORADIC_SERVER -1 /* [SS] */ #define _POSIX_SYNCHRONIZED_IO -1 /* [SIO] */ #define _POSIX_THREAD_CPUTIME 200112L /* [TCT] */ #define _POSIX_TIMEOUTS 200112L /* mandatory ([TMO]) */ #define _POSIX_TIMERS 200112L /* XXX mandatory ([TMR]) */ #define _POSIX_TYPED_MEMORY_OBJECTS -1 /* [TYM] */ #define _POSIX_VDISABLE 0xff #if __XSI_VISIBLE #define _XOPEN_SHM 1 #define _XOPEN_STREAMS -1 /* [XSR] obsolescent */ #endif /* * Although we have saved user/group IDs, we do not use them in setuid * as described in POSIX 1003.1, because the feature does not work for * root. We use the saved IDs in seteuid/setegid, which are not currently * part of the POSIX 1003.1 specification. See comments in kern_prot.c. * * XXX revisit for 1003.1-2008 as this is now mandatory since 1003.1-2001. */ #if 0 #define _POSIX_SAVED_IDS 1 /* saved set-user-ID and set-group-ID */ #endif /* Define the POSIX.1 version we target for compliance. */ #ifndef _POSIX_VERSION #define _POSIX_VERSION 200112L #endif /* access function */ #define F_OK 0 /* test for existence of file */ #define X_OK 0x01 /* test for execute or search permission */ #define W_OK 0x02 /* test for write permission */ #define R_OK 0x04 /* test for read permission */ /* * whence values for lseek(2) * Always ensure that these are consistent with <fcntl.h> and <stdio.h>! */ #ifndef SEEK_SET #define SEEK_SET 0 /* set file offset to offset */ #endif #ifndef SEEK_CUR #define SEEK_CUR 1 /* set file offset to current plus offset */ #endif #ifndef SEEK_END #define SEEK_END 2 /* set file offset to EOF plus offset */ #endif #if __BSD_VISIBLE #define SEEK_DATA 3 /* set file offset to next data past offset */ #define SEEK_HOLE 4 /* set file offset to next hole past offset */ /* whence values for lseek(2); renamed by POSIX 1003.1 */ #define L_SET SEEK_SET #define L_INCR SEEK_CUR #define L_XTND SEEK_END #endif /* configurable pathname variables */ #define _PC_LINK_MAX 1 #define _PC_MAX_CANON 2 #define _PC_MAX_INPUT 3 #define _PC_NAME_MAX 4 #define _PC_PATH_MAX 5 #define _PC_PIPE_BUF 6 #define _PC_CHOWN_RESTRICTED 7 #define _PC_NO_TRUNC 8 #define _PC_VDISABLE 9 #if __POSIX_VISIBLE >= 199309 #define _PC_ASYNC_IO 53 #define _PC_PRIO_IO 54 #define _PC_SYNC_IO 55 #endif #if __POSIX_VISIBLE >= 200112 #define _PC_ALLOC_SIZE_MIN 10 #define _PC_FILESIZEBITS 12 #define _PC_REC_INCR_XFER_SIZE 14 #define _PC_REC_MAX_XFER_SIZE 15 #define _PC_REC_MIN_XFER_SIZE 16 #define _PC_REC_XFER_ALIGN 17 #define _PC_SYMLINK_MAX 18 #endif #if __POSIX_VISIBLE >= 200809 #define _PC_2_SYMLINKS 22 #define _PC_TIMESTAMP_RESOLUTION 23 #endif #if __BSD_VISIBLE #define _PC_ACL_EXTENDED 59 #define _PC_ACL_PATH_MAX 60 #define _PC_CAP_PRESENT 61 #define _PC_INF_PRESENT 62 #define _PC_MAC_PRESENT 63 #endif /* From OpenSolaris, used by SEEK_DATA/SEEK_HOLE. */ #define _PC_MIN_HOLE_SIZE 21 #if __BSD_VISIBLE /* * rfork() options. * * XXX currently, operations without RFPROC set are not supported. */ #define RFNAMEG (1<<0) /* UNIMPL new plan9 `name space' */ #define RFENVG (1<<1) /* UNIMPL copy plan9 `env space' */ #define RFFDG (1<<2) /* copy fd table */ #define RFNOTEG (1<<3) /* UNIMPL create new plan9 `note group' */ #define RFPROC (1<<4) /* change child (else changes curproc) */ #define RFMEM (1<<5) /* share `address space' */ #define RFNOWAIT (1<<6) /* parent need not wait() on child */ #define RFCNAMEG (1<<10) /* UNIMPL zero plan9 `name space' */ #define RFCENVG (1<<11) /* UNIMPL zero plan9 `env space' */ #define RFCFDG (1<<12) /* zero fd table */ #define RFTHREAD (1<<13) /* enable kernel thread support */ #define RFSIGSHARE (1<<14) /* share signal handlers */ #define RFLINUXTHPN (1<<16) /* do linux clone exit parent notification */ #define RFPGLOCK (1<<30) /* process group interlock for signal race */ #define RFPPWAIT (1<<31) /* parent sleeps until child exits (vfork) */ #define RFKERNELONLY (RFPGLOCK | RFPPWAIT) /* * Extended exit extexit() operation modes. */ /* Types of action to communicate exit */ #define EXTEXIT_SIMPLE 0 #define EXTEXIT_SETINT 1 #define EXTEXIT_ACTION(f) ((f) & 0xffff) /* Types describing what to exit */ #define EXTEXIT_PROC (0<<16) #define EXTEXIT_LWP (1<<16) #define EXTEXIT_WHO(f) ((f) & (0xffff<<16)) #endif /* __BSD_VISIBLE */ #endif /* !_SYS_UNISTD_H_ */
