NAME
uname —
get system identification
LIBRARY
library “libc”
SYNOPSIS
#include
<sys/utsname.h>
int
uname(struct
utsname *name);
DESCRIPTION
Theuname()
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. Equivalent to the sysctl(7) kern.ostype variable.
- nodename
- Network name of this machine. Equivalent to the sysctl(7) kern.hostname variable.
- release
- Release level of the operating system. Equivalent to the sysctl(7) kern.osrelease variable.
- version
- Version level of the operating system. Equivalent to the sysctl(7) kern.version variable, except that very long values are truncated, and newlines are converted to spaces.
- machine
- Machine hardware platform. Equivalent to the sysctl(7) hw.machine variable.
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.