#ifndef _SYS_UTSNAME_H
#define _SYS_UTSNAME_H
#define _UTSNAME_LENGTH 65
struct utsname {
    char sysname[_UTSNAME_LENGTH];
    char nodename[_UTSNAME_LENGTH];
    char release[_UTSNAME_LENGTH];
    char version[_UTSNAME_LENGTH];
    char machine[_UTSNAME_LENGTH];
};
int uname(struct utsname *buf);
#endif