man/man2/uname.2

         te
 Copyright 1989 AT&T Copyright (c) 1999, Sun Microsystems, Inc. All Rights Reserved
 The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
 You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
 When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
 UNAME 2 "Jul 21, 1999"
 NAME
uname - get name of current operating system
 SYNOPSIS

#include <sys/utsname.h>

int uname(struct utsname *name);


 DESCRIPTION

The uname() function stores information identifying the current operating
system in the structure pointed to by name.

The uname() function uses the utsname structure, defined in
<sys/utsname.h>, whose members include:
char sysname[SYS_NMLN];
char nodename[SYS_NMLN];
char release[SYS_NMLN];
char version[SYS_NMLN];
char machine[SYS_NMLN];


The uname() function returns a null-terminated character string naming
the current operating system in the character array sysname. Similarly,
the nodename member contains the name by which the system is known on a
communications network. The release and version members further
identify the operating system. The machine member contains a standard
name that identifies the hardware on which the operating system is running.
 RETURN VALUES

Upon successful completion, a non-negative value is returned. Otherwise,
-1 is returned and errno is set to indicate the error.
 ERRORS

The uname() function will fail if:
EFAULT

The name argument points to an illegal address.


 ATTRIBUTES

See attributes(5) for descriptions of the following attributes:


ATTRIBUTE TYPE ATTRIBUTE VALUE
Interface Stability Standard
MT-Level Async-Signal-Safe


 SEE ALSO

uname(1), sysinfo(2), sysconf(3C), attributes(5),
standards(5)