setdomainname(2)                 DG/UX 5.4.2                setdomainname(2)


NAME
       setdomainname - set name of current domain

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

   where:
       name      Name to set for domain

       namelen   Length of name in bytes

DESCRIPTION
       Setdomainname sets the domain of the host node to name, which has
       length namelen.  Only the superuser may use this call; it is normally
       used at boot time.

       The purpose of domains is to enable two distinct networks that may
       have hostnames 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.

       Domain names are limited to MAXDOMAINNAMELEN characters, which is
       defined in <user/param.h>.

ACCESS CONTROL
       Only the superuser can set the domain name.

RETURN VALUE
       0      Completed successfully.

       -1     An error occurred.  errno is set to indicate the error.

DIAGNOSTICS
       Errno may be set to one of the following error codes:

       EFAULT    The name parameter gave an invalid address, or the namelen
                 parameter specified a length less than zero.

       EPERM     The caller was not the superuser.

SEE ALSO
       getdomainname(2), gethostid(2), gethostname(2).













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