118 lines
3.1 KiB
Groff
118 lines
3.1 KiB
Groff
.\" Copyright (c) 1994
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.\" The Regents of the University of California. All rights reserved.
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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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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)uname.3 8.1 (Berkeley) 1/4/94
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.\" $FreeBSD$
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.\"
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.Dd December 2, 2005
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.Dt UNAME 3
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.Os
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.Sh NAME
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.Nm uname
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.Nd get system identification
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.Sh LIBRARY
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.Lb libc
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.Sh SYNOPSIS
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.In sys/utsname.h
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.Ft int
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.Fn uname "struct utsname *name"
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.Sh DESCRIPTION
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The
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.Fn uname
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function stores
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.Dv NUL Ns -terminated
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strings of information identifying
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the current system into the structure referenced by
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.Fa name .
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.Pp
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The
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.Vt utsname
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structure is defined in the
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.In sys/utsname.h
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header file, and contains the following members:
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.Bl -tag -width nodenameXXXX -offset indent
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.It sysname
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Name of the operating system implementation.
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.It nodename
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Network name of this machine.
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.It release
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Release level of the operating system.
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.It version
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Version level of the operating system.
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.It machine
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Machine hardware platform.
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.El
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.Sh RETURN VALUES
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.Rv -std uname
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.Sh ENVIRONMENT
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.Bl -tag -width ".Ev UNAME_s"
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.It Ev UNAME_s
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If the environment variable
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.Ev UNAME_s
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is set, it will override the
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.Va sysname
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member.
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.It Ev UNAME_r
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If the environment variable
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.Ev UNAME_r
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is set, it will override the
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.Va release
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member.
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.It Ev UNAME_v
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If the environment variable
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.Ev UNAME_v
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is set, it will override the
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.Va version
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member.
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.It Ev UNAME_m
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If the environment variable
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.Ev UNAME_m
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is set, it will override the
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.Va machine
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member.
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.El
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.Sh ERRORS
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The
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.Fn uname
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function may fail and set
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.Va errno
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for any of the errors specified for the library functions
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.Xr sysctl 3 .
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.Sh SEE ALSO
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.Xr uname 1 ,
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.Xr sysctl 3
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.Sh STANDARDS
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The
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.Fn uname
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function conforms to
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.St -p1003.1-88 .
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.Sh HISTORY
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The
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.Fn uname
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function first appeared in
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.Bx 4.4 .
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