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authorJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 19:55:15 -0400
committerJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 19:55:15 -0400
commit253e67c8b3a72b3a4757fdbc5845297628db0a4a (patch)
treeadf53b66087aa30dfbf8bf391a1dadb044c3bf4d /static/netbsd/man3/gethostname.3
parenta9157ce950dfe2fc30795d43b9d79b9d1bffc48b (diff)
docs: Added All NetBSD Manuals
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+.\" $NetBSD: gethostname.3,v 1.18 2015/09/03 04:05:38 jnemeth Exp $
+.\"
+.\" Copyright (c) 1983, 1991, 1993
+.\" The Regents of the University of California. All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\" may be used to endorse or promote products derived from this software
+.\" without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" @(#)gethostname.3 8.1 (Berkeley) 6/4/93
+.\"
+.Dd September 2, 2015
+.Dt GETHOSTNAME 3
+.Os
+.Sh NAME
+.Nm gethostname ,
+.Nm sethostname
+.Nd get/set name of current host
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In unistd.h
+.Ft int
+.Fn gethostname "char *name" "size_t namelen"
+.Ft int
+.Fn sethostname "const char *name" "size_t namelen"
+.Sh DESCRIPTION
+.Fn gethostname
+returns the standard host name for the current machine, as
+previously set by
+.Fn sethostname .
+The parameter
+.Fa namelen
+specifies the size of the
+.Fa name
+array.
+The returned name is null-terminated unless insufficient
+space is provided.
+.Pp
+.Fn sethostname
+sets the name of the host machine to be
+.Fa name ,
+which has length
+.Fa namelen .
+This call is restricted to the super-user and
+is normally used only when the system is bootstrapped.
+.Sh RETURN VALUES
+If the call succeeds a value of 0 is returned.
+If the call fails, a value of \-1 is returned and an error code is
+placed in the global location
+.Va errno .
+.Sh ERRORS
+If the
+.Fn gethostname
+or
+.Fn sethostname
+functions fail,
+they will set
+.Va errno
+for any of the errors specified for the routine
+.Xr sysctl 3 .
+.Sh SEE ALSO
+.Xr gethostid 3 ,
+.Xr sysctl 3 ,
+.Xr sysctl 8
+.Sh STANDARDS
+The
+.Fn gethostname
+function conforms to
+.St -xpg4.2 .
+.Sh HISTORY
+The
+.Nm
+function call appeared in
+.Bx 4.2 .
+.Sh BUGS
+Host names are limited to
+.Dv MAXHOSTNAMELEN
+(from
+.Ao Pa sys/param.h Ac )
+characters including null-termination, currently 256.