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Diffstat (limited to 'StdLib/Include/sys/unistd.h')
| -rw-r--r-- | StdLib/Include/sys/unistd.h | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/StdLib/Include/sys/unistd.h b/StdLib/Include/sys/unistd.h new file mode 100644 index 0000000000..0e7158c7c8 --- /dev/null +++ b/StdLib/Include/sys/unistd.h @@ -0,0 +1,192 @@ +/* $NetBSD: unistd.h,v 1.35 2006/08/14 18:17:48 rpaulo Exp $ */
+
+/*
+ * 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
+ */
+
+#ifndef _SYS_UNISTD_H_
+#define _SYS_UNISTD_H_
+
+#include <sys/featuretest.h>
+
+/* compile-time symbolic constants */
+#define _POSIX_JOB_CONTROL /* implementation supports job control */
+
+/*
+ * According to POSIX 1003.1:
+ * "The saved set-user-ID capability allows a program to regain the
+ * effective user ID established at the last exec call."
+ * However, the setuid/setgid function as specified by POSIX 1003.1 does
+ * not allow changing the effective ID from the super-user without also
+ * changed the saved ID, so it is impossible to get super-user privileges
+ * back later. Instead we provide this feature independent of the current
+ * effective ID through the seteuid/setegid function. In addition, we do
+ * not use the saved ID as specified by POSIX 1003.1 in setuid/setgid,
+ * because this would make it impossible for a set-user-ID executable
+ * owned by a user other than the super-user to permanently revoke its
+ * extra privileges.
+ */
+#ifdef _NOT_AVAILABLE
+#define _POSIX_SAVED_IDS /* saved set-user-ID and set-group-ID */
+#endif
+
+#define _POSIX_VERSION 199009L
+#define _POSIX2_VERSION 199212L
+
+/* execution-time symbolic constants */
+ /* chown requires appropriate privileges */
+#define _POSIX_CHOWN_RESTRICTED 1
+ /* clock selection */
+#define _POSIX_CLOCK_SELECTION -1
+ /* too-long path components generate errors */
+#define _POSIX_NO_TRUNC 1
+ /* may disable terminal special characters */
+#define _POSIX_VDISABLE ((unsigned char)'\377')
+ /* file synchronization is available */
+#define _POSIX_FSYNC 1
+ /* synchronized I/O is available */
+#define _POSIX_SYNCHRONIZED_IO 1
+ /* memory mapped files */
+#define _POSIX_MAPPED_FILES 1
+ /* memory locking of whole address space */
+#define _POSIX_MEMLOCK 1
+ /* memory locking address ranges */
+#define _POSIX_MEMLOCK_RANGE 1
+ /* memory access protections */
+#define _POSIX_MEMORY_PROTECTION 1
+ /* monotonic clock */
+#define _POSIX_MONOTONIC_CLOCK 200112L
+ /* threads */
+#define _POSIX_THREADS 200112L
+ /* semaphores */
+#define _POSIX_SEMAPHORES 0
+ /* barriers */
+#define _POSIX_BARRIERS 200112L
+ /* timers */
+#define _POSIX_TIMERS 200112L
+ /* spin locks */
+#define _POSIX_SPIN_LOCKS 200112L
+ /* read/write locks */
+#define _POSIX_READER_WRITER_LOCKS 200112L
+ /* XPG4.2 shared memory */
+#define _XOPEN_SHM 0
+
+#if defined(_NETBSD_SOURCE)
+/* 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
+
+/*
+ * fsync_range values.
+ *
+ * Note the following flag values were chosen to not overlap
+ * values for SEEK_XXX flags. While not currently implemented,
+ * it is possible to extend this call to respect SEEK_CUR and
+ * SEEK_END offset addressing modes.
+ */
+#define FDATASYNC 0x0010 /* sync data and minimal metadata */
+#define FFILESYNC 0x0020 /* sync data and metadata */
+#define FDISKSYNC 0x0040 /* flush disk caches after sync */
+#endif
+
+/* configurable pathname variables; use as argument to pathconf(3) */
+#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
+#define _PC_SYNC_IO 10
+#define _PC_FILESIZEBITS 11
+
+/* configurable system variables; use as argument to sysconf(3) */
+/*
+ * XXX The value of _SC_CLK_TCK is embedded in <time.h>.
+ * XXX The value of _SC_PAGESIZE is embedded in <sys/shm.h>.
+ */
+#define _SC_ARG_MAX 1
+#define _SC_CHILD_MAX 2
+#define _O_SC_CLK_TCK 3 /* Old version, always 100 */
+#define _SC_NGROUPS_MAX 4
+#define _SC_OPEN_MAX 5
+#define _SC_JOB_CONTROL 6
+#define _SC_SAVED_IDS 7
+#define _SC_VERSION 8
+#define _SC_BC_BASE_MAX 9
+#define _SC_BC_DIM_MAX 10
+#define _SC_BC_SCALE_MAX 11
+#define _SC_BC_STRING_MAX 12
+#define _SC_COLL_WEIGHTS_MAX 13
+#define _SC_EXPR_NEST_MAX 14
+#define _SC_LINE_MAX 15
+#define _SC_RE_DUP_MAX 16
+#define _SC_2_VERSION 17
+#define _SC_2_C_BIND 18
+#define _SC_2_C_DEV 19
+#define _SC_2_CHAR_TERM 20
+#define _SC_2_FORT_DEV 21
+#define _SC_2_FORT_RUN 22
+#define _SC_2_LOCALEDEF 23
+#define _SC_2_SW_DEV 24
+#define _SC_2_UPE 25
+#define _SC_STREAM_MAX 26
+#define _SC_TZNAME_MAX 27
+#define _SC_PAGESIZE 28
+#define _SC_PAGE_SIZE _SC_PAGESIZE /* 1170 compatibility */
+#define _SC_FSYNC 29
+#define _SC_XOPEN_SHM 30
+#define _SC_SYNCHRONIZED_IO 31
+#define _SC_IOV_MAX 32
+#define _SC_MAPPED_FILES 33
+#define _SC_MEMLOCK 34
+#define _SC_MEMLOCK_RANGE 35
+#define _SC_MEMORY_PROTECTION 36
+#define _SC_LOGIN_NAME_MAX 37
+#define _SC_MONOTONIC_CLOCK 38
+#define _SC_CLK_TCK 39 /* New, variable version */
+#define _SC_ATEXIT_MAX 40
+#define _SC_THREADS 41
+#define _SC_SEMAPHORES 42
+#define _SC_BARRIERS 43
+#define _SC_TIMERS 44
+#define _SC_SPIN_LOCKS 45
+#define _SC_READER_WRITER_LOCKS 46
+#define _SC_GETGR_R_SIZE_MAX 47
+#define _SC_GETPW_R_SIZE_MAX 48
+#define _SC_CLOCK_SELECTION 49
+
+/* configurable system strings */
+#define _CS_PATH 1
+
+#endif /* !_SYS_UNISTD_H_ */
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