sys_utsname.h - Man Page

system name structure


This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.


#include <sys/utsname.h>


The <sys/utsname.h> header shall define the structure utsname which shall include at least the following members:

char  sysname[]  Name of this implementation of the operating system.
char  nodename[] Name of this node within the communications
                 network to which this node is attached, if any.
char  release[]  Current release level of this implementation.
char  version[]  Current version level of this release.
char  machine[]  Name of the hardware type on which the system is running.

The character arrays are of unspecified size, but the data stored in them shall be terminated by a null byte.

The following shall be declared as a function and may also be defined as a macro:

int uname(struct utsname *);

The following sections are informative.

Application Usage




Future Directions


See Also

The System Interfaces volume of POSIX.1-2017, uname()

Referenced By


2017 IEEE/The Open Group POSIX Programmer's Manual