xref: /dragonfly/lib/libc/gen/getdomainname.3 (revision 1de703da)
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32.\"     @(#)gethostname.3	8.1 (Berkeley) 6/4/93
33.\" $FreeBSD: src/lib/libc/gen/getdomainname.3,v 1.9.2.5 2001/12/14 18:33:51 ru Exp $
34.\" $DragonFly: src/lib/libc/gen/getdomainname.3,v 1.2 2003/06/17 04:26:42 dillon Exp $
35.\"
36.Dd May 6, 1994
37.Dt GETDOMAINNAME 3
38.Os
39.Sh NAME
40.Nm getdomainname ,
41.Nm setdomainname
42.Nd get/set domain name of current host
43.Sh LIBRARY
44.Lb libc
45.Sh SYNOPSIS
46.In unistd.h
47.Ft int
48.Fn getdomainname "char *name" "int namelen"
49.Ft int
50.Fn setdomainname "const char *name" "int namelen"
51.Sh DESCRIPTION
52.Fn Getdomainname
53returns the standard domain name for the current processor, as
54previously set by
55.Fn setdomainname .
56The parameter
57.Fa namelen
58specifies the size of the
59.Fa name
60array.  The returned name is null-terminated unless insufficient
61space is provided.
62.Pp
63.Fn Setdomainname
64sets the domain name of the host machine to be
65.Fa name ,
66which has length
67.Fa namelen .
68This call is restricted to the super-user and
69is normally used only when the system is bootstrapped.
70.Sh RETURN VALUES
71.Rv -std
72.Sh ERRORS
73The following errors may be returned by these calls:
74.Bl -tag -width Er
75.It Bq Er EFAULT
76The
77.Fa name
78or
79.Fa namelen
80parameter gave an
81invalid address.
82.It Bq Er EPERM
83The caller tried to set the hostname and was not the super-user.
84.El
85.Sh SEE ALSO
86.Xr gethostid 3 ,
87.Xr gethostname 3 ,
88.Xr sysctl 3
89.Sh BUGS
90Domain names are limited to
91.Dv MAXHOSTNAMELEN
92(from
93.Ao Pa sys/param.h Ac )
94characters, currently 256.
95.Sh HISTORY
96The
97.Fn getdomainname
98function call appeared in
99.Bx 4.2 .
100