4.3BSD-UWisc/man/cat2/getdomainname.2

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GETDOMAINNAME(2)    UNIX Programmer's Manual     GETDOMAINNAME(2)



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

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

DESCRIPTION
     _G_e_t_d_o_m_a_i_n_n_a_m_e returns the name of the domain for the current
     processor, as previously set by _s_e_t_d_o_m_a_i_n_n_a_m_e.  The parame-
     ter _n_a_m_e_l_e_n specifies the size of the _n_a_m_e array.  The
     returned name is null-terminated unless insufficient space
     is provided.

     _S_e_t_d_o_m_a_i_n_n_a_m_e sets the domain of the host machine to be
     _n_a_m_e, which has length _n_a_m_e_l_e_n.  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 _e_r_r_n_o.

ERRORS
     The following errors may be returned by these calls:

     [EFAULT]       The _n_a_m_e 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.






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Printed 12/27/86         19 August 1985                         1