DESCRIPTION

     uname returns system information in buf.  The utsname struct
     is as defined in <sys/utsname.h>:
     struct utsname {
                      char sysname[SYS_NMLN];
                      char nodename[SYS_NMLN];
                      char release[SYS_NMLN];
                      char version[SYS_NMLN];
                      char machine[SYS_NMLN];
                      char domainname[SYS_NMLN];
                      };

RETURN VALUE

     On success, zero is returned.  On error, -1 is returned, and
     errno is set appropriately.

ERRORS

     EFAULT  buf is not valid.

CONFORMING TO

     SVr4, SVID, POSIX, X/OPEN

SEE ALSO

     uname(1), getdomainname(2), gethostname(2)