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38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
/* Copyright (C) 1994-2017 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 <errno.h>
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#include <unistd.h>
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#include <hurd/fd.h>
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#include <hurd/term.h>
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/* Return 1 if FD is a terminal, 0 if not. */
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int
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__isatty (int fd)
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{
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error_t err;
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mach_port_t id;
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err = HURD_DPORT_USE (fd, __term_getctty (port, &id));
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if (! err)
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__mach_port_deallocate (__mach_task_self (), id);
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return !err;
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}
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weak_alias (__isatty, isatty)
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