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04277e02d7
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
/* Copyright (C) 1993-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <unistd.h>
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#include <hurd.h>
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#include "hurdhost.h"
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#include <_itoa.h>
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/* Set the current machine's Internet number to ID.
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This call is restricted to the super-user. */
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/* XXX should be __sethostid?
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isn't hostid supposed to be hardwired and unchangeable? */
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int
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sethostid (long int id)
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{
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char buf[8], *bp;
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ssize_t n;
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/* The hostid is kept in the file /etc/hostid,
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eight characters of upper-case hexadecimal. */
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bp = _itoa_word (id, &buf[sizeof buf], 16, 1);
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while (bp > buf)
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*--bp = '0';
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n = _hurd_set_host_config ("/etc/hostid", buf, sizeof buf);
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return n < 0 ? -1 : 0;
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}
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