1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2002 Maxime Henrion <mux@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _SYS_KENV_H_ 30 #define _SYS_KENV_H_ 31 32 /* 33 * Constants for the kenv(2) syscall 34 */ 35 #define KENV_GET 0 36 #define KENV_SET 1 37 #define KENV_UNSET 2 38 #define KENV_DUMP 3 39 #define KENV_DUMP_LOADER 4 40 #define KENV_DUMP_STATIC 5 41 42 #define KENV_MNAMELEN 128 /* Maximum name length (for the syscall) */ 43 #define KENV_MVALLEN 128 /* Maximum value length (for the syscall) */ 44 45 #ifdef _KERNEL 46 /* 47 * Most of these variables should be const. 48 */ 49 extern bool dynamic_kenv; 50 extern struct mtx kenv_lock; 51 extern char *kern_envp; 52 extern char *md_envp; 53 extern char static_env[]; 54 extern char static_hints[]; /* by config for now */ 55 56 extern char **kenvp; 57 #endif /* _KERNEL */ 58 59 #endif /* !_SYS_KENV_H_ */ 60