oldolduname (2) Linux Manual Page

NAME

uname – get name and information about current kernel

SYNOPSIS

#include <sys/utsname.h>

int uname(struct utsname *buf);

DESCRIPTION

uname() returns system information in the structure pointed to by buf. The utsname struct is defined in <sys/utsname.h>:

struct utsname {
    char sysname[];    /* Operating system name (e.g., "Linux") */
    char nodename[];   /* Name within "some implementation-defined
                          network" */
    char release[];    /* Operating system release
                          (e.g., "2.6.28") */
    char version[];    /* Operating system version */
    char machine[];    /* Hardware identifier */ #ifdef _GNU_SOURCE
    char domainname[]; /* NIS or YP domain name */ #endif };

The length of the arrays in a struct utsname is unspecified (see NOTES); the fields are terminated by a null byte (‘