1.\" Copyright (c) 1994 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by the University of 15.\" California, Berkeley and its contributors. 16.\" 4. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)uname.3 8.1 (Berkeley) 1/4/94 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 nul-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.Li <sys/utsname.h> 55header file, and contains the following members: 56.Bl -tag -width nodenameXXXX -offset indent 57.It sysname 58Name of the operating system implementation. 59.It nodename 60Network name of this machine. 61.It release 62Release level of the operating system. 63.It version 64Version level of the operating system. 65.It machine 66Machine hardware platform. 67.El 68.Sh RETURN VALUES 69If 70.Fn uname 71is successful, 0 is returned, otherwise, -1 is returned and 72.Va errno 73is set appropriately. 74.Sh ERRORS 75The 76.Fn uname 77function may fail and set 78.Va errno 79for any of the errors specified for the library functions 80.Xr sysctl 3 . 81.Sh SEE ALSO 82.Xr uname 1 , 83.Xr sysctl 3 84.Sh STANDARDS 85The 86.Fn uname 87function conforms to 88.St -p1003.1-88 . 89.Sh HISTORY 90The 91.Fn uname 92function first appeared in 93.Bx 4.4 . 94