1 #ifndef _SYS__POSIX_H_ 2 #define _SYS__POSIX_H_ 3 4 /*- 5 * Copyright (c) 1998 HD Associates, Inc. 6 * All rights reserved. 7 * contact: dufault (at) hda.com 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * $Id: _posix.h,v 1.1.1.1 2006/05/30 06:13:04 hhzhou Exp $ 31 */ 32 33 /* 34 * This is a stand alone header file to set up for feature specification 35 * defined to take place before the inclusion of any standard header. 36 * It should only handle pre-processor defines. 37 * 38 * See section B.2.7 of 1003.1b-1993 39 * 40 */ 41 42 #ifdef KERNEL 43 44 #if !defined(ACTUALLY_LKM_NOT_KERNEL) && !defined(KLD_MODULE) 45 #include "opt_posix.h" 46 #endif 47 48 /* Only kern_mib.c uses _POSIX_VERSION. Introduce a kernel 49 * one to avoid other pieces of the kernel getting dependant 50 * on that. 51 * XXX Complain if you think this dumb. 52 */ 53 54 /* Make P1003 structures visible for the kernel if 55 * the P1003_1B option is in effect. 56 */ 57 #ifdef P1003_1B 58 #define _P1003_1B_VISIBLE 59 #ifndef _KPOSIX_VERSION 60 #define _KPOSIX_VERSION 199309L 61 #endif 62 #endif 63 64 #ifndef _KPOSIX_VERSION 65 #define _KPOSIX_VERSION 199009L 66 #endif 67 68 #define _P1003_1B_VISIBLE_HISTORICALLY 69 70 #else 71 72 /* Default to existing user space version. 73 */ 74 #ifndef _POSIX_VERSION 75 #define _POSIX_VERSION 199009L 76 #endif 77 78 /* Test for visibility of P1003.1B features: 79 * If _POSIX_SOURCE and POSIX_C_SOURCE are completely undefined 80 * they show up. 81 * 82 * If they specify a version including P1003.1B then they show up. 83 * 84 * (Two macros are added to permit hiding new extensions while 85 * keeping historic BSD features - that is not done now) 86 * 87 */ 88 89 #if (!defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)) || \ 90 (_POSIX_VERSION >= 199309L && defined(_POSIX_C_SOURCE) && \ 91 _POSIX_C_SOURCE >= 199309L) 92 #define _P1003_1B_VISIBLE 93 #define _P1003_1B_VISIBLE_HISTORICALLY 94 #endif 95 96 #endif /* not KERNEL */ 97 #endif /* _SYS__POSIX_H_ */ 98
