1 .\" $NetBSD: gethostname.3,v 1.17 2006/02/07 18:59:56 wiz Exp $
3 .\" Copyright (c) 1983, 1991, 1993
4 .\" The Regents of the University of California. All rights reserved.
6 .\" Redistribution and use in source and binary forms, with or without
7 .\" modification, are permitted provided that the following conditions
9 .\" 1. Redistributions of source code must retain the above copyright
10 .\" notice, this list of conditions and the following disclaimer.
11 .\" 2. Redistributions in binary form must reproduce the above copyright
12 .\" notice, this list of conditions and the following disclaimer in the
13 .\" documentation and/or other materials provided with the distribution.
14 .\" 3. Neither the name of the University nor the names of its contributors
15 .\" may be used to endorse or promote products derived from this software
16 .\" without specific prior written permission.
18 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 .\" @(#)gethostname.3 8.1 (Berkeley) 6/4/93
38 .Nd get/set name of current host
44 .Fn gethostname "char *name" "size_t namelen"
46 .Fn sethostname "const char *name" "size_t namelen"
49 returns the standard host name for the current processor, as
54 specifies the size of the
57 The returned name is null-terminated unless insufficient
61 sets the name of the host machine to be
65 This call is restricted to the super-user and
66 is normally used only when the system is bootstrapped.
68 If the call succeeds a value of 0 is returned.
69 If the call fails, a value of \-1 is returned and an error code is
70 placed in the global location
80 for any of the errors specified for the routine
94 function call appeared in
97 Host names are limited to
100 .Ao Pa sys/param.h Ac )
101 characters including null-termination, currently 256.