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49 lines
1.6 KiB
C
49 lines
1.6 KiB
C
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/* Copyright (C) 1991, 1992, 1993, 1994, 1995 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 Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <ansidecl.h>
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#include <errno.h>
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#include <unistd.h>
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#include <hurd.h>
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#include <hurd/port.h>
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#include <string.h>
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/* Put the name of the current host in no more than LEN bytes of NAME.
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The result is null-terminated if LEN is large enough for the full
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name and the terminator. */
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int
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DEFUN(__gethostname, (name, len),
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char *name AND size_t len)
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{
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error_t err;
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char *buf = name;
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mach_msg_type_number_t buflen = len;
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if (err = __USEPORT (PROC, __proc_gethostname (port, &buf, &buflen)))
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return __hurd_fail (err);
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if (buf != name)
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{
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memcpy (name, buf, len < buflen ? len : buflen);
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__vm_deallocate (__mach_task_self (), (vm_address_t) buf, buflen);
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}
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if (buflen > len)
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return __hurd_fail (ENAMETOOLONG);
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return 0;
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}
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weak_alias (__gethostname, gethostname)
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