[apple/xnu.git] / bsd / sys / unistd.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. 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_

/*
 * 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.
 */
#ifdef	_NOT_AVAILABLE
#define	_POSIX_SAVED_IDS	/* saved set-user-ID and set-group-ID */
#endif

#define	_POSIX_VERSION		200112L
#define	_POSIX2_VERSION		200112L

/* execution-time symbolic constants */
				/* may disable terminal special characters */
#ifndef _POSIX_VDISABLE
#define	_POSIX_VDISABLE		((unsigned char)'\377')
#endif

#define _POSIX_THREAD_KEYS_MAX 128

/* access function */
#define	F_OK		0	/* test for existence of file */
#define	X_OK		(1<<0)	/* test for execute or search permission */
#define	W_OK		(1<<1)	/* test for write permission */
#define	R_OK		(1<<2)	/* test for read permission */

#ifndef _POSIX_C_SOURCE
/*
 * Extended access functions.
 * Note that we depend on these matching the definitions in sys/kauth.h,
 * but with the bits shifted left by 8.
 */
#define _READ_OK	(1<<9)	/* read file data / read directory */
#define _WRITE_OK	(1<<10)	/* write file data / add file to directory */
#define _EXECUTE_OK	(1<<11) /* execute file / search in directory*/
#define _DELETE_OK	(1<<12)	/* delete file / delete directory */
#define _APPEND_OK	(1<<13)	/* append to file / add subdirectory to directory */
#define _RMFILE_OK	(1<<14)	/* - / remove file from directory */
#define _RATTR_OK	(1<<15)	/* read basic attributes */
#define _WATTR_OK	(1<<16)	/* write basic attributes */
#define _REXT_OK	(1<<17)	/* read extended attributes */
#define _WEXT_OK	(1<<18)	/* write extended attributes */
#define _RPERM_OK	(1<<19)	/* read permissions */
#define _WPERM_OK	(1<<20)	/* write permissions */
#define _CHOWN_OK	(1<<21)	/* change ownership */

#define _ACCESS_EXTENDED_MASK (_READ_OK | _WRITE_OK | _EXECUTE_OK | \
				_DELETE_OK | _APPEND_OK | \
				_RMFILE_OK | _REXT_OK | \
				_WEXT_OK | _RATTR_OK | _WATTR_OK | _RPERM_OK | \
				_WPERM_OK | _CHOWN_OK)
#endif

/* whence values for lseek(2) */
#ifndef SEEK_SET
#define	SEEK_SET	0	/* set file offset to offset */
#define	SEEK_CUR	1	/* set file offset to current plus offset */
#define	SEEK_END	2	/* set file offset to EOF plus offset */
#endif	/* !SEEK_SET */

#ifndef _POSIX_C_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
#endif

#ifndef _POSIX_C_SOURCE
struct accessx_descriptor {
	unsigned ad_name_offset;
	int ad_flags;
	int ad_pad[2];
};
#define ACCESSX_MAX_DESCRIPTORS	100
#define ACCESSX_MAX_TABLESIZE	(16 * 1024)
#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

#ifndef _POSIX_C_SOURCE
#define	_PC_NAME_CHARS_MAX	 10
#define	_PC_CASE_SENSITIVE		 11
#define	_PC_CASE_PRESERVING		 12
#define _PC_EXTENDED_SECURITY_NP        13
#define _PC_AUTH_OPAQUE_NP      14
#endif

/* configurable system strings */
#define	_CS_PATH		 1

#endif /* !_SYS_UNISTD_H_ */
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
37839358 A	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
1c79356b	11	*
37839358 A	12	* This Original Code and all software distributed under the License are
37839358 A	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
37839358 A	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
1c79356b A	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
	23	/*
	24	* Copyright (c) 1989, 1993
	25	* The Regents of the University of California. All rights reserved.
	26	*
	27	* Redistribution and use in source and binary forms, with or without
	28	* modification, are permitted provided that the following conditions
	29	* are met:
	30	* 1. Redistributions of source code must retain the above copyright
	31	* notice, this list of conditions and the following disclaimer.
	32	* 2. Redistributions in binary form must reproduce the above copyright
	33	* notice, this list of conditions and the following disclaimer in the
	34	* documentation and/or other materials provided with the distribution.
	35	* 3. All advertising materials mentioning features or use of this software
	36	* must display the following acknowledgement:
	37	* This product includes software developed by the University of
	38	* California, Berkeley and its contributors.
	39	* 4. Neither the name of the University nor the names of its contributors
	40	* may be used to endorse or promote products derived from this software
	41	* without specific prior written permission.
	42	*
	43	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	44	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	45	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	46	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	47	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	48	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	49	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	50	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	51	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	52	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	53	* SUCH DAMAGE.
	54	*
	55	* @(#)unistd.h 8.2 (Berkeley) 1/7/94
	56	*/
	57
	58	#ifndef _SYS_UNISTD_H_
	59	#define _SYS_UNISTD_H_
	60
1c79356b A	61	/*
	62	* Although we have saved user/group IDs, we do not use them in setuid
	63	* as described in POSIX 1003.1, because the feature does not work for
	64	* root. We use the saved IDs in seteuid/setegid, which are not currently
	65	* part of the POSIX 1003.1 specification.
	66	*/
	67	#ifdef _NOT_AVAILABLE
	68	#define _POSIX_SAVED_IDS /* saved set-user-ID and set-group-ID */
	69	#endif
	70
91447636 A	71	#define _POSIX_VERSION 200112L
91447636 A	72	#define _POSIX2_VERSION 200112L
1c79356b A	73
1c79356b A	74	/* execution-time symbolic constants */
1c79356b A	75	/* may disable terminal special characters */
	76	#ifndef _POSIX_VDISABLE
	77	#define _POSIX_VDISABLE ((unsigned char)'\377')
	78	#endif
	79
1c79356b A	80	#define _POSIX_THREAD_KEYS_MAX 128
	81
	82	/* access function */
	83	#define F_OK 0 /* test for existence of file */
91447636 A	84	#define X_OK (1<<0) /* test for execute or search permission */
	85	#define W_OK (1<<1) /* test for write permission */
	86	#define R_OK (1<<2) /* test for read permission */
	87
	88	#ifndef _POSIX_C_SOURCE
	89	/*
	90	* Extended access functions.
	91	* Note that we depend on these matching the definitions in sys/kauth.h,
	92	* but with the bits shifted left by 8.
	93	*/
	94	#define _READ_OK (1<<9) /* read file data / read directory */
	95	#define _WRITE_OK (1<<10) /* write file data / add file to directory */
	96	#define _EXECUTE_OK (1<<11) /* execute file / search in directory*/
	97	#define _DELETE_OK (1<<12) /* delete file / delete directory */
	98	#define _APPEND_OK (1<<13) /* append to file / add subdirectory to directory */
	99	#define _RMFILE_OK (1<<14) /* - / remove file from directory */
	100	#define _RATTR_OK (1<<15) /* read basic attributes */
	101	#define _WATTR_OK (1<<16) /* write basic attributes */
	102	#define _REXT_OK (1<<17) /* read extended attributes */
	103	#define _WEXT_OK (1<<18) /* write extended attributes */
	104	#define _RPERM_OK (1<<19) /* read permissions */
	105	#define _WPERM_OK (1<<20) /* write permissions */
	106	#define _CHOWN_OK (1<<21) /* change ownership */
	107
	108	#define _ACCESS_EXTENDED_MASK (_READ_OK \| _WRITE_OK \| _EXECUTE_OK \| \
	109	_DELETE_OK \| _APPEND_OK \| \
	110	_RMFILE_OK \| _REXT_OK \| \
	111	_WEXT_OK \| _RATTR_OK \| _WATTR_OK \| _RPERM_OK \| \
	112	_WPERM_OK \| _CHOWN_OK)
	113	#endif
1c79356b A	114
1c79356b A	115	/* whence values for lseek(2) */
91447636	116	#ifndef SEEK_SET
1c79356b A	117	#define SEEK_SET 0 /* set file offset to offset */
	118	#define SEEK_CUR 1 /* set file offset to current plus offset */
	119	#define SEEK_END 2 /* set file offset to EOF plus offset */
91447636	120	#endif /* !SEEK_SET */
1c79356b	121
91447636	122	#ifndef _POSIX_C_SOURCE
1c79356b A	123	/* whence values for lseek(2); renamed by POSIX 1003.1 */
	124	#define L_SET SEEK_SET
	125	#define L_INCR SEEK_CUR
	126	#define L_XTND SEEK_END
	127	#endif
	128
91447636 A	129	#ifndef _POSIX_C_SOURCE
	130	struct accessx_descriptor {
	131	unsigned ad_name_offset;
	132	int ad_flags;
	133	int ad_pad[2];
	134	};
	135	#define ACCESSX_MAX_DESCRIPTORS 100
	136	#define ACCESSX_MAX_TABLESIZE (16 * 1024)
	137	#endif
	138
1c79356b A	139	/* configurable pathname variables */
	140	#define _PC_LINK_MAX 1
	141	#define _PC_MAX_CANON 2
	142	#define _PC_MAX_INPUT 3
	143	#define _PC_NAME_MAX 4
	144	#define _PC_PATH_MAX 5
	145	#define _PC_PIPE_BUF 6
	146	#define _PC_CHOWN_RESTRICTED 7
	147	#define _PC_NO_TRUNC 8
	148	#define _PC_VDISABLE 9
	149
91447636	150	#ifndef _POSIX_C_SOURCE
1c79356b A	151	#define _PC_NAME_CHARS_MAX 10
	152	#define _PC_CASE_SENSITIVE 11
	153	#define _PC_CASE_PRESERVING 12
91447636 A	154	#define _PC_EXTENDED_SECURITY_NP 13
91447636 A	155	#define _PC_AUTH_OPAQUE_NP 14
1c79356b A	156	#endif
1c79356b A	157
1c79356b A	158	/* configurable system strings */
	159	#define _CS_PATH 1
	160
	161	#endif /* !_SYS_UNISTD_H_ */