2 char sysname[]; /* Operating system name (e.g., "Linux") */
3 char nodename[]; /* Name within "some implementation-defined
5 char release[]; /* OS release (e.g., "2.6.28") */
6 char version[]; /* OS version */
7 char machine[]; /* Hardware identifier */
9 char domainname[]; /* NIS or YP domain name */