utsname.h, utsname - system name structure
The <sys/utsname.h> header defines the structure utsname, which includes the following members:
char sysname /* name of this implementation of the operating system */ char nodename /* name of this node within an implementation-defined communications network */ 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 is terminated by a null byte.
See attributes(5) for descriptions of the following attributes: