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

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



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

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

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

DESCRIPTION
     _G_e_t_h_o_s_t_n_a_m_e returns the standard host name for the current
     processor, as previously set by _s_e_t_h_o_s_t_n_a_m_e.  The parameter
     _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 pro-
     vided.

     _S_e_t_h_o_s_t_n_a_m_e sets the name 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.

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 or _n_a_m_e_l_e_n parameter gave an invalid
                    address.

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

SEE ALSO
     gethostid(2)

BUGS
     Host names are limited to MAXHOSTNAMELEN (from
     <_s_y_s/_p_a_r_a_m._h>) characters, currently 64.











Printed 12/27/86          May 22, 1986                          1