Add getbyteorder() call.
This commit is contained in:
matt
parent
61a76f0146
commit
b1fc4bee02
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@ -1,4 +1,4 @@
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# $NetBSD: Makefile,v 1.73 2012/04/07 16:44:39 christos Exp $
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# $NetBSD: Makefile,v 1.74 2013/05/02 07:17:09 matt Exp $
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# @(#)Makefile 8.1 (Berkeley) 6/4/93
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USE_SHLIBDIR= yes
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@ -11,7 +11,8 @@ WARNS?= 5
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LIB= util
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CPPFLAGS+=-DLIBC_SCCS -I${.CURDIR}
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LINTFLAGS+=-w
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SRCS+= efun.c getbootfile.c getlabelsector.c getmaxpartitions.c \
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SRCS+= efun.c \
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getbootfile.c getbyteorder.c getlabelsector.c getmaxpartitions.c \
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getfsspecname.c getmntopts.c getrawpartition.c getdiskrawname.c \
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disklabel_dkcksum.c disklabel_scan.c \
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if_media.c \
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@ -22,7 +23,8 @@ SRCS+= efun.c getbootfile.c getlabelsector.c getmaxpartitions.c \
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secure_path.c sockaddr_snprintf.c stat_flags.c \
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strpct.c ttyaction.c ttymsg.c
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MAN= efun.3 getbootfile.3 getfstypename.3 getlabelsector.3 \
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MAN= efun.3 \
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getbootfile.3 getbyteorder.3 getfstypename.3 getlabelsector.3 \
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getmaxpartitions.3 getmntopts.3 getrawpartition.3 \
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getdiskrawname.3 getfsspecname.3 \
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login.3 login_cap.3 loginx.3 \
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@ -0,0 +1,59 @@
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.\" $NetBSD: getbyteorder.3,v 1.1 2013/05/02 07:17:09 matt Exp $
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.\"
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.\" Copyright (c) 1996 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 Jason R. Thorpe.
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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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.Dd May 1, 2013
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.Dt GETBYTEORDER 3
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.Os
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.Sh NAME
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.Nm getbyteorder
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.Nd get the current byte order
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.Sh LIBRARY
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.Lb libutil
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.Sh SYNOPSIS
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.In util.h
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.In sys/endian.h
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.Ft int
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.Fn getbyteorder void
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.Sh DESCRIPTION
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.Fn getbyteorder
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returns LITTLE_ENDIAN, BIG_ENDIAN,
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or \-1 in case of an error, setting the global
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.Va errno
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variable.
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The possible values for
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.Va errno
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are the same as in
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.Xr sysctl 3 .
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.Sh SEE ALSO
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.Xr sysctl 3
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.Sh HISTORY
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The
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.Fn getbyteorder
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function call appeared in
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.Nx 7 .
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@ -0,0 +1,54 @@
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/* $NetBSD: getbyteorder.c,v 1.1 2013/05/02 07:17:10 matt Exp $ */
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/*-
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* Copyright (c) 1996 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 Jason R. Thorpe.
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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: getbyteorder.c,v 1.1 2013/05/02 07:17:10 matt Exp $");
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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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#include <util.h>
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int
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getbyteorder(void)
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{
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int byteorder, mib[2];
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size_t varlen;
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mib[0] = CTL_HW;
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mib[1] = HW_BYTEORDER;
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varlen = sizeof(byteorder);
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if (sysctl(mib, 2, &byteorder, &varlen, NULL, (size_t)0) < 0)
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return (-1);
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return (byteorder);
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}
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