NAME
gethostname, sethostname - get/set name of current host

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

sethostname(name, namelen)
const char *name;
int namelen;

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

Sethostname sets the name 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.

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 or namelen parameter gave an invalid
address.

[EPERM] The caller tried to set the hostname and was not the
super-user.