1 /* $NetBSD: env.h,v 1.2 2010/11/14 22:04:36 tron Exp $ */ 2 3 /*- 4 * Copyright (c) 2010 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Matthias Scheler. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/types.h> 33 34 #include <stdbool.h> 35 36 #include "reentrant.h" 37 38 extern ssize_t __getenvslot(const char *name, size_t l_name, bool allocate); 39 extern char *__findenvvar(const char *name, size_t l_name); 40 41 #ifdef _REENTRANT 42 extern bool __readlockenv(void); 43 extern bool __writelockenv(void); 44 extern bool __unlockenv(void); 45 #else 46 static __inline bool 47 __readlockenv(void) 48 { 49 return true; 50 } 51 52 static __inline bool 53 __writelockenv(void) 54 { 55 return true; 56 } 57 58 static __inline bool 59 #if defined(__minix) 60 __unlockenv(void) 61 #else /* Bug-to-bug compatibility? LSC: FIXME We should upstream that. */ 62 __unlocklockenv(void) 63 #endif /* defined(__minix) */ 64 { 65 return true; 66 } 67 #endif 68 69 extern char **environ; 70