UNAME(3) Library Functions Manual UNAME(3)
NAME
unameget 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).
SEE ALSO
STANDARDS
The uname() function conforms to IEEE Std 1003.1-1990 (“POSIX.1”).
HISTORY
The uname function first appeared in 4.4BSD.