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+.\" Hey Emacs! This file is -*- nroff -*- source.
+.\"
+.\" Copyright 1993 Rickard E. Faith (faith@cs.unc.edu)
+.\"
+.\" Permission is granted to make and distribute verbatim copies of this
+.\" manual provided the copyright notice and this permission notice are
+.\" preserved on all copies.
+.\"
+.\" Permission is granted to copy and distribute modified versions of this
+.\" manual under the conditions for verbatim copying, provided that the
+.\" entire resulting derived work is distributed under the terms of a
+.\" permission notice identical to this one.
+.\" 
+.\" Since the Linux kernel and libraries are constantly changing, this
+.\" manual page may be incorrect or out-of-date.  The author(s) assume no
+.\" responsibility for errors or omissions, or for damages resulting from
+.\" the use of the information contained herein.  The author(s) may not
+.\" have taken the same level of care in the production of this manual,
+.\" which is licensed free of charge, as they might when working
+.\" professionally.
+.\" 
+.\" Formatted or processed versions of this manual, if unaccompanied by
+.\" the source, must acknowledge the copyright and authors of this work.
+.\"
+.\" Modified 1997-08-25 by Nicolás Lichtmaier <nick@debian.org>
+.\" Modified 2004-06-17 by Michael Kerrisk <mtk16@ext.canterbury.ac.nz>
+.\"
+.TH GETDOMAINNAME 2 2004-06-17 "Linux 2.6.7" "Linux Programmer's Manual"
+.SH NAME
+getdomainname, setdomainname \- get/set domain name
+.SH SYNOPSIS
+.B #include <unistd.h>
+.sp
+.BI "int getdomainname(char *" name ", size_t " len );
+.br
+.BI "int setdomainname(const char *" name ", size_t " len );
+.SH DESCRIPTION
+These functions are used to access or to change the domain name of the
+current processor.
+If the NUL-terminated domain name requires more than \fIlen\fP bytes,
+.B getdomainname
+returns the first \fIlen\fP bytes (glibc) or returns an error (libc).
+.SH "RETURN VALUE"
+On success, zero is returned.  On error, \-1 is returned, and
+.I errno
+is set appropriately.
+.SH ERRORS
+.TP
+.B EFAULT
+For
+.BR setdomainname :
+.I name
+pointed outside of user address space.
+.TP
+.B EINVAL
+For
+.BR getdomainname
+under libc:
+.I name
+is
+.B NULL
+or
+.I name
+is longer than
+.I len
+bytes.
+.TP
+.B EINVAL
+For
+.BR setdomainname :
+.I len
+was negative or too large.
+.TP
+.B EPERM
+For
+.BR setdomainname :
+the caller is unprivileged (Linux: does not have the
+.B CAP_SYS_ADMIN
+capability).
+.SH "CONFORMING TO"
+POSIX does not specify these calls.
+.SH "SEE ALSO"
+.BR gethostname (2),
+.BR sethostname (2),
+.BR uname (2)