[mirror_edk2.git] / StdLib / Include / sys / unistd.h

/*  $NetBSD: unistd.h,v 1.35 2006/08/14 18:17:48 rpaulo Exp $ */\r
\r
/*\r
 * Copyright (c) 1989, 1993\r
 *  The Regents of the University of California.  All rights reserved.\r
 *\r
 * Redistribution and use in source and binary forms, with or without\r
 * modification, are permitted provided that the following conditions\r
 * are met:\r
 * 1. Redistributions of source code must retain the above copyright\r
 *    notice, this list of conditions and the following disclaimer.\r
 * 2. Redistributions in binary form must reproduce the above copyright\r
 *    notice, this list of conditions and the following disclaimer in the\r
 *    documentation and/or other materials provided with the distribution.\r
 * 3. Neither the name of the University nor the names of its contributors\r
 *    may be used to endorse or promote products derived from this software\r
 *    without specific prior written permission.\r
 *\r
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND\r
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE\r
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r
 * SUCH DAMAGE.\r
 *\r
 *  @(#)unistd.h  8.2 (Berkeley) 1/7/94\r
 */\r
\r
#ifndef _SYS_UNISTD_H_\r
#define _SYS_UNISTD_H_\r
\r
#include <sys/featuretest.h>\r
\r
/* compile-time symbolic constants */\r
//#define _POSIX_JOB_CONTROL  /* implementation supports job control */\r
\r
/*\r
 * According to POSIX 1003.1:\r
 * "The saved set-user-ID capability allows a program to regain the\r
 * effective user ID established at the last exec call."\r
 * However, the setuid/setgid function as specified by POSIX 1003.1 does\r
 * not allow changing the effective ID from the super-user without also\r
 * changed the saved ID, so it is impossible to get super-user privileges\r
 * back later.  Instead we provide this feature independent of the current\r
 * effective ID through the seteuid/setegid function.  In addition, we do\r
 * not use the saved ID as specified by POSIX 1003.1 in setuid/setgid,\r
 * because this would make it impossible for a set-user-ID executable\r
 * owned by a user other than the super-user to permanently revoke its\r
 * extra privileges.\r
 */\r
#ifdef  _NOT_AVAILABLE\r
#define _POSIX_SAVED_IDS  /* saved set-user-ID and set-group-ID */\r
#endif\r
\r
#define _POSIX_VERSION    199009L\r
#define _POSIX2_VERSION   199212L\r
\r
/* execution-time symbolic constants */\r
        /* chown requires appropriate privileges */\r
//#define _POSIX_CHOWN_RESTRICTED 1\r
//        /* clock selection */\r
//#define _POSIX_CLOCK_SELECTION  -1\r
//        /* too-long path components generate errors */\r
//#define _POSIX_NO_TRUNC   1\r
//        /* may disable terminal special characters */\r
//#define _POSIX_VDISABLE   ((unsigned char)'\377')\r
//        /* file synchronization is available */\r
//#define _POSIX_FSYNC    1\r
//        /* synchronized I/O is available */\r
//#define _POSIX_SYNCHRONIZED_IO  1\r
//        /* memory mapped files */\r
//#define _POSIX_MAPPED_FILES 1\r
//        /* memory locking of whole address space */\r
//#define _POSIX_MEMLOCK    1\r
//        /* memory locking address ranges */\r
//#define _POSIX_MEMLOCK_RANGE  1\r
//        /* memory access protections */\r
//#define _POSIX_MEMORY_PROTECTION 1\r
//        /* monotonic clock */\r
//#define _POSIX_MONOTONIC_CLOCK  200112L\r
//        /* threads */\r
//#define _POSIX_THREADS    200112L\r
//        /* semaphores */\r
//#define _POSIX_SEMAPHORES 0\r
//        /* barriers */\r
//#define _POSIX_BARRIERS   200112L\r
        /* timers */\r
#define _POSIX_TIMERS   200112L\r
        /* spin locks */\r
//#define _POSIX_SPIN_LOCKS 200112L\r
//        /* read/write locks */\r
//#define _POSIX_READER_WRITER_LOCKS  200112L\r
//        /* XPG4.2 shared memory */\r
//#define _XOPEN_SHM    0\r
\r
/* whence values for lseek(2); renamed by POSIX 1003.1 */\r
#define L_SET   SEEK_SET\r
#define L_INCR    SEEK_CUR\r
#define L_XTND    SEEK_END\r
\r
/*\r
 * fsync_range values.\r
 *\r
 * Note the following flag values were chosen to not overlap\r
 * values for SEEK_XXX flags.  While not currently implemented,\r
 * it is possible to extend this call to respect SEEK_CUR and\r
 * SEEK_END offset addressing modes.\r
 */\r
#define FDATASYNC 0x0010  /* sync data and minimal metadata */\r
#define FFILESYNC 0x0020  /* sync data and metadata */\r
#define FDISKSYNC 0x0040  /* flush disk caches after sync */\r
\r
/* configurable pathname variables; use as argument to pathconf(3) */\r
#define _PC_LINK_MAX     1\r
#define _PC_MAX_CANON    2\r
#define _PC_MAX_INPUT    3\r
#define _PC_NAME_MAX     4\r
#define _PC_PATH_MAX     5\r
#define _PC_PIPE_BUF     6\r
#define _PC_CHOWN_RESTRICTED   7\r
#define _PC_NO_TRUNC     8\r
#define _PC_VDISABLE     9\r
#define _PC_SYNC_IO   10\r
#define _PC_FILESIZEBITS  11\r
\r
/* configurable system variables; use as argument to sysconf(3) */\r
/*\r
 * XXX The value of _SC_CLK_TCK is embedded in <time.h>.\r
 * XXX The value of _SC_PAGESIZE is embedded in <sys/shm.h>.\r
 */\r
#define _SC_ARG_MAX    1\r
#define _SC_CHILD_MAX    2\r
#define _O_SC_CLK_TCK    3 /* Old version, always 100 */\r
#define _SC_NGROUPS_MAX    4\r
#define _SC_OPEN_MAX     5\r
#define _SC_JOB_CONTROL    6\r
#define _SC_SAVED_IDS    7\r
#define _SC_VERSION    8\r
#define _SC_BC_BASE_MAX    9\r
#define _SC_BC_DIM_MAX    10\r
#define _SC_BC_SCALE_MAX  11\r
#define _SC_BC_STRING_MAX 12\r
#define _SC_COLL_WEIGHTS_MAX  13\r
#define _SC_EXPR_NEST_MAX 14\r
#define _SC_LINE_MAX    15\r
#define _SC_RE_DUP_MAX    16\r
#define _SC_2_VERSION   17\r
#define _SC_2_C_BIND    18\r
#define _SC_2_C_DEV   19\r
#define _SC_2_CHAR_TERM   20\r
#define _SC_2_FORT_DEV    21\r
#define _SC_2_FORT_RUN    22\r
#define _SC_2_LOCALEDEF   23\r
#define _SC_2_SW_DEV    24\r
#define _SC_2_UPE   25\r
#define _SC_STREAM_MAX    26\r
#define _SC_TZNAME_MAX    27\r
#define _SC_PAGESIZE    28\r
#define _SC_PAGE_SIZE   _SC_PAGESIZE  /* 1170 compatibility */\r
#define _SC_FSYNC   29\r
#define _SC_XOPEN_SHM   30\r
#define _SC_SYNCHRONIZED_IO 31\r
#define _SC_IOV_MAX   32\r
#define _SC_MAPPED_FILES  33\r
#define _SC_MEMLOCK   34\r
#define _SC_MEMLOCK_RANGE 35\r
#define _SC_MEMORY_PROTECTION 36\r
#define _SC_LOGIN_NAME_MAX  37\r
#define _SC_MONOTONIC_CLOCK 38\r
#define _SC_CLK_TCK   39 /* New, variable version */\r
#define _SC_ATEXIT_MAX    40\r
#define _SC_THREADS   41\r
#define _SC_SEMAPHORES    42\r
#define _SC_BARRIERS    43\r
#define _SC_TIMERS    44\r
#define _SC_SPIN_LOCKS    45\r
#define _SC_READER_WRITER_LOCKS 46\r
#define _SC_GETGR_R_SIZE_MAX  47\r
#define _SC_GETPW_R_SIZE_MAX  48\r
#define _SC_CLOCK_SELECTION 49\r
\r
/* configurable system strings */\r
#define _CS_PATH     1\r
\r
#endif /* !_SYS_UNISTD_H_ */\r
Commit	Line	Data
53e1e5c6	1	/* $NetBSD: unistd.h,v 1.35 2006/08/14 18:17:48 rpaulo Exp $ */\r
	2	\r
	3	/*\r
	4	* Copyright (c) 1989, 1993\r
	5	* The Regents of the University of California. All rights reserved.\r
	6	*\r
	7	* Redistribution and use in source and binary forms, with or without\r
	8	* modification, are permitted provided that the following conditions\r
	9	* are met:\r
	10	* 1. Redistributions of source code must retain the above copyright\r
	11	* notice, this list of conditions and the following disclaimer.\r
	12	* 2. Redistributions in binary form must reproduce the above copyright\r
	13	* notice, this list of conditions and the following disclaimer in the\r
	14	* documentation and/or other materials provided with the distribution.\r
	15	* 3. Neither the name of the University nor the names of its contributors\r
	16	* may be used to endorse or promote products derived from this software\r
	17	* without specific prior written permission.\r
	18	*\r
	19	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND\r
	20	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
	21	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
	22	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE\r
	23	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r
	24	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r
	25	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r
	26	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r
	27	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r
	28	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r
	29	* SUCH DAMAGE.\r
	30	*\r
	31	* @(#)unistd.h 8.2 (Berkeley) 1/7/94\r
	32	*/\r
	33	\r
	34	#ifndef _SYS_UNISTD_H_\r
	35	#define _SYS_UNISTD_H_\r
	36	\r
	37	#include <sys/featuretest.h>\r
	38	\r
	39	/* compile-time symbolic constants */\r
d7ce7006	40	//#define _POSIX_JOB_CONTROL /* implementation supports job control */\r
53e1e5c6	41	\r
	42	/*\r
	43	* According to POSIX 1003.1:\r
	44	* "The saved set-user-ID capability allows a program to regain the\r
	45	* effective user ID established at the last exec call."\r
	46	* However, the setuid/setgid function as specified by POSIX 1003.1 does\r
	47	* not allow changing the effective ID from the super-user without also\r
	48	* changed the saved ID, so it is impossible to get super-user privileges\r
	49	* back later. Instead we provide this feature independent of the current\r
	50	* effective ID through the seteuid/setegid function. In addition, we do\r
	51	* not use the saved ID as specified by POSIX 1003.1 in setuid/setgid,\r
	52	* because this would make it impossible for a set-user-ID executable\r
	53	* owned by a user other than the super-user to permanently revoke its\r
	54	* extra privileges.\r
	55	*/\r
	56	#ifdef _NOT_AVAILABLE\r
	57	#define _POSIX_SAVED_IDS /* saved set-user-ID and set-group-ID */\r
	58	#endif\r
	59	\r
	60	#define _POSIX_VERSION 199009L\r
	61	#define _POSIX2_VERSION 199212L\r
	62	\r
	63	/* execution-time symbolic constants */\r
	64	/* chown requires appropriate privileges */\r
d7ce7006	65	//#define _POSIX_CHOWN_RESTRICTED 1\r
	66	// /* clock selection */\r
	67	//#define _POSIX_CLOCK_SELECTION -1\r
	68	// /* too-long path components generate errors */\r
	69	//#define _POSIX_NO_TRUNC 1\r
	70	// /* may disable terminal special characters */\r
	71	//#define _POSIX_VDISABLE ((unsigned char)'\377')\r
	72	// /* file synchronization is available */\r
	73	//#define _POSIX_FSYNC 1\r
	74	// /* synchronized I/O is available */\r
	75	//#define _POSIX_SYNCHRONIZED_IO 1\r
	76	// /* memory mapped files */\r
	77	//#define _POSIX_MAPPED_FILES 1\r
	78	// /* memory locking of whole address space */\r
	79	//#define _POSIX_MEMLOCK 1\r
	80	// /* memory locking address ranges */\r
	81	//#define _POSIX_MEMLOCK_RANGE 1\r
	82	// /* memory access protections */\r
	83	//#define _POSIX_MEMORY_PROTECTION 1\r
	84	// /* monotonic clock */\r
	85	//#define _POSIX_MONOTONIC_CLOCK 200112L\r
	86	// /* threads */\r
	87	//#define _POSIX_THREADS 200112L\r
	88	// /* semaphores */\r
	89	//#define _POSIX_SEMAPHORES 0\r
	90	// /* barriers */\r
	91	//#define _POSIX_BARRIERS 200112L\r
53e1e5c6	92	/* timers */\r
	93	#define _POSIX_TIMERS 200112L\r
	94	/* spin locks */\r
d7ce7006	95	//#define _POSIX_SPIN_LOCKS 200112L\r
	96	// /* read/write locks */\r
	97	//#define _POSIX_READER_WRITER_LOCKS 200112L\r
	98	// /* XPG4.2 shared memory */\r
	99	//#define _XOPEN_SHM 0\r
53e1e5c6	100	\r
53e1e5c6	101	/* whence values for lseek(2); renamed by POSIX 1003.1 */\r
	102	#define L_SET SEEK_SET\r
	103	#define L_INCR SEEK_CUR\r
	104	#define L_XTND SEEK_END\r
	105	\r
	106	/*\r
	107	* fsync_range values.\r
	108	*\r
	109	* Note the following flag values were chosen to not overlap\r
	110	* values for SEEK_XXX flags. While not currently implemented,\r
	111	* it is possible to extend this call to respect SEEK_CUR and\r
	112	* SEEK_END offset addressing modes.\r
	113	*/\r
	114	#define FDATASYNC 0x0010 /* sync data and minimal metadata */\r
	115	#define FFILESYNC 0x0020 /* sync data and metadata */\r
	116	#define FDISKSYNC 0x0040 /* flush disk caches after sync */\r
53e1e5c6	117	\r
	118	/* configurable pathname variables; use as argument to pathconf(3) */\r
	119	#define _PC_LINK_MAX 1\r
	120	#define _PC_MAX_CANON 2\r
	121	#define _PC_MAX_INPUT 3\r
	122	#define _PC_NAME_MAX 4\r
	123	#define _PC_PATH_MAX 5\r
	124	#define _PC_PIPE_BUF 6\r
	125	#define _PC_CHOWN_RESTRICTED 7\r
	126	#define _PC_NO_TRUNC 8\r
	127	#define _PC_VDISABLE 9\r
	128	#define _PC_SYNC_IO 10\r
	129	#define _PC_FILESIZEBITS 11\r
	130	\r
	131	/* configurable system variables; use as argument to sysconf(3) */\r
	132	/*\r
	133	* XXX The value of _SC_CLK_TCK is embedded in <time.h>.\r
	134	* XXX The value of _SC_PAGESIZE is embedded in <sys/shm.h>.\r
	135	*/\r
	136	#define _SC_ARG_MAX 1\r
	137	#define _SC_CHILD_MAX 2\r
	138	#define _O_SC_CLK_TCK 3 /* Old version, always 100 */\r
	139	#define _SC_NGROUPS_MAX 4\r
	140	#define _SC_OPEN_MAX 5\r
	141	#define _SC_JOB_CONTROL 6\r
	142	#define _SC_SAVED_IDS 7\r
	143	#define _SC_VERSION 8\r
	144	#define _SC_BC_BASE_MAX 9\r
	145	#define _SC_BC_DIM_MAX 10\r
	146	#define _SC_BC_SCALE_MAX 11\r
	147	#define _SC_BC_STRING_MAX 12\r
	148	#define _SC_COLL_WEIGHTS_MAX 13\r
	149	#define _SC_EXPR_NEST_MAX 14\r
	150	#define _SC_LINE_MAX 15\r
	151	#define _SC_RE_DUP_MAX 16\r
	152	#define _SC_2_VERSION 17\r
	153	#define _SC_2_C_BIND 18\r
	154	#define _SC_2_C_DEV 19\r
	155	#define _SC_2_CHAR_TERM 20\r
	156	#define _SC_2_FORT_DEV 21\r
	157	#define _SC_2_FORT_RUN 22\r
	158	#define _SC_2_LOCALEDEF 23\r
	159	#define _SC_2_SW_DEV 24\r
	160	#define _SC_2_UPE 25\r
	161	#define _SC_STREAM_MAX 26\r
	162	#define _SC_TZNAME_MAX 27\r
	163	#define _SC_PAGESIZE 28\r
	164	#define _SC_PAGE_SIZE _SC_PAGESIZE /* 1170 compatibility */\r
	165	#define _SC_FSYNC 29\r
	166	#define _SC_XOPEN_SHM 30\r
	167	#define _SC_SYNCHRONIZED_IO 31\r
	168	#define _SC_IOV_MAX 32\r
	169	#define _SC_MAPPED_FILES 33\r
	170	#define _SC_MEMLOCK 34\r
	171	#define _SC_MEMLOCK_RANGE 35\r
	172	#define _SC_MEMORY_PROTECTION 36\r
	173	#define _SC_LOGIN_NAME_MAX 37\r
	174	#define _SC_MONOTONIC_CLOCK 38\r
	175	#define _SC_CLK_TCK 39 /* New, variable version */\r
	176	#define _SC_ATEXIT_MAX 40\r
	177	#define _SC_THREADS 41\r
	178	#define _SC_SEMAPHORES 42\r
	179	#define _SC_BARRIERS 43\r
	180	#define _SC_TIMERS 44\r
181	#define _SC_SPIN_LOCKS 45\r
182	#define _SC_READER_WRITER_LOCKS 46\r
183	#define _SC_GETGR_R_SIZE_MAX 47\r
184	#define _SC_GETPW_R_SIZE_MAX 48\r
185	#define _SC_CLOCK_SELECTION 49\r
186	\r
187	/* configurable system strings */\r
188	#define _CS_PATH 1\r
189	\r
190	#endif /* !_SYS_UNISTD_H_ */\r