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.\" $FreeBSD$ 34.\" 35.Dd January 4, 1994 36.Dt UNAME 3 37.Os 38.Sh NAME 39.Nm uname 40.Nd get system identification 41.Sh LIBRARY 42.Lb libc 43.Sh SYNOPSIS 44.Fd #include <sys/utsname.h> 45.Ft int 46.Fn uname "struct utsname *name" 47.Sh DESCRIPTION 48The 49.Fn uname 50function stores nul-terminated strings of information identifying 51the current system into the structure referenced by 52.Fa name . 53.Pp 54The 55.Li utsname 56structure is defined in the 57.Li <sys/utsname.h> 58header file, and contains the following members: 59.Bl -tag -width nodenameXXXX -offset indent 60.It sysname 61Name of the operating system implementation. 62.It nodename 63Network name of this machine. 64.It release 65Release level of the operating system. 66.It version 67Version level of the operating system. 68.It machine 69Machine hardware platform. 70.El 71.Sh RETURN VALUES 72If 73.Fn uname 74is successful, 0 is returned, otherwise, -1 is returned and 75.Va errno 76is set appropriately. 77.Sh ERRORS 78The 79.Fn uname 80function may fail and set 81.Va errno 82for any of the errors specified for the library functions 83.Xr sysctl 3 . 84.Sh SEE ALSO 85.Xr uname 1 , 86.Xr sysctl 3 87.Sh STANDARDS 88The 89.Fn uname 90function conforms to 91.St -p1003.1-88 . 92.Sh HISTORY 93The 94.Fn uname 95function first appeared in 96.Bx 4.4 . 97