1.\" $OpenBSD: uname.3,v 1.9 1999/07/02 16:57:48 aaron Exp $ 2.\" 3.\" Copyright (c) 1994 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. All advertising materials mentioning features or use of this software 15.\" must display the following acknowledgement: 16.\" This product includes software developed by the University of 17.\" California, Berkeley and its contributors. 18.\" 4. Neither the name of the University nor the names of its contributors 19.\" may be used to endorse or promote products derived from this software 20.\" without specific prior written permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.Dd January 4, 1994 35.Dt UNAME 3 36.Os 37.Sh NAME 38.Nm uname 39.Nd get system identification 40.Sh SYNOPSIS 41.Fd #include <sys/utsname.h> 42.Ft int 43.Fn uname "struct utsname *name" 44.Sh DESCRIPTION 45The 46.Fn uname 47function stores null-terminated strings of information identifying 48the current system into the structure referenced by 49.Fa name . 50.Pp 51The 52.Li utsname 53structure is defined in the 54.Aq Pa sys/utsname.h 55header file, and contains the following members: 56.Pp 57.Bl -tag -width nodenameXXXX -offset indent -compact 58.It Fa sysname 59Name of the operating system implementation. 60.It Fa nodename 61Network name of this machine. 62.It Fa release 63Release level of the operating system. 64.It Fa version 65Version level of the operating system. 66.It Fa machine 67Machine hardware platform. 68.El 69.Sh RETURN VALUES 70If 71.Fn uname 72is successful, 0 is returned; otherwise, \-1 is returned and 73.Va errno 74is set appropriately. 75.Sh ERRORS 76The 77.Fn uname 78function may fail and set 79.Va errno 80for any of the errors specified for the library function 81.Xr sysctl 3 . 82.Sh SEE ALSO 83.Xr uname 1 , 84.Xr sysctl 3 85.Sh STANDARDS 86The 87.Fn uname 88function conforms to 89.St -p1003.1-88 . 90.Sh HISTORY 91The 92.Fn uname 93function first appeared in 94.Bx 4.4 . 95