| UNAME(3) | Library Functions Manual | UNAME(3) | 
NAME
 uname — get system identification
LIBRARY
 Standard C Library (libc, -lc)
SYNOPSIS
 #include <sys/utsname.h>
int
uname(struct utsname *name);
 
DESCRIPTION
 The 
uname() function stores nul-terminated strings of information identifying the current system into the structure referenced by 
name.
The utsname structure is defined in the <sys/utsname.h> header file, and contains the following members:
- 
sysname
- 
Name of the operating system implementation.
- 
nodename
- 
Network name of this machine.
- 
release
- 
Release level of the operating system.
- 
version
- 
Version level of the operating system.
- 
machine
- 
Machine hardware platform.
 
RETURN VALUES
 If uname is successful, 0 is returned, otherwise, -1 is returned and errno is set appropriately.
ERRORS
 The 
uname() function may fail and set 
errno for any of the errors specified for the library functions 
sysctl(3).
 
STANDARDS
 The uname() function conforms to IEEE Std 1003.1-1990 (“POSIX.1”).
HISTORY
 The uname function first appeared in 4.4BSD.