68 lines
2.4 KiB
C
68 lines
2.4 KiB
C
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/* $NetBSD: sysctlbyname.c,v 1.7 2010/12/13 23:10:13 pooka Exp $ */
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/*-
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* Copyright (c) 2003,2004 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Andrew Brown.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: sysctlbyname.c,v 1.7 2010/12/13 23:10:13 pooka Exp $");
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#endif /* LIBC_SCCS and not lint */
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#ifndef RUMP_ACTION
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#include "namespace.h"
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#endif
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#ifdef RUMP_ACTION
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#include <rump/rump_syscalls.h>
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#define sysctl(a,b,c,d,e,f) rump_sys___sysctl(a,b,c,d,e,f)
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#else
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#ifdef __weak_alias
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__weak_alias(sysctlbyname,_sysctlbyname)
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#endif
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#endif
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/*
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* trivial sysctlbyname() function for the "lazy".
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*/
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int
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sysctlbyname(const char *gname, void *oldp, size_t *oldlenp,
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const void *newp, size_t newlen)
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{
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int name[CTL_MAXNAME], rc;
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u_int namelen;
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rc = sysctlgetmibinfo(gname, &name[0], &namelen, NULL, NULL, NULL,
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SYSCTL_VERSION);
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if (rc == 0)
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rc = sysctl(&name[0], namelen, oldp, oldlenp, newp, newlen);
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return (rc);
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}
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