NAME
getdomainname, setdomainname - get/set name of current domain

SYNOPSIS
getdomainname(name, namelen)
char *name;
int namelen;

setdomainname(name, namelen)
char *name;
int namelen;

DESCRIPTION
Getdomainname returns the name of the domain for the current
processor, as previously set by setdomainname. The parameter
namelen specifies the size of the name array. The returned name is
null-terminated unless insufficient space is provided.

Setdomainname sets the domain of the host machine to be name, which
has length namelen. This call is restricted to the super-user and
is normally used only when the system is bootstrapped.

The purpose of domains is to enable two distinct networks that may
have host names in common to merge. Each network would be
distinguished by having a different domain name. At the current
time, only the yellow pages service makes use of domains.

RETURN VALUE
If the call succeeds a value of 0 is returned. If the call fails,
then a value of -1 is returned and an error code is placed in the
global location errno.

ERRORS
The following errors may be returned by these calls:

[EFAULT] The name parameter gave an invalid address.

[EPERM] The caller was not the super-user. This error only
applies to setdomainname.

BUGS
Domain names are limited to 255 characters.