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67 lines
1.9 KiB
C
67 lines
1.9 KiB
C
/* Copyright (C) 2021-2024 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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<https://www.gnu.org/licenses/>. */
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#include <unistd.h>
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#include <hurd.h>
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#include <hurd/fd.h>
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/* Close the file descriptors from FIRST up to LAST, inclusive.
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If CLOSE_RANGE_CLOEXEC is set in FLAGS, set the FD_CLOEXEC flag
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instead of closing. */
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int
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__close_range (unsigned int first, unsigned int last,
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int flags)
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{
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int i;
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if (first > last)
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return __hurd_fail (EINVAL);
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if (flags & ~CLOSE_RANGE_CLOEXEC)
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return __hurd_fail (EINVAL);
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HURD_CRITICAL_BEGIN;
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__mutex_lock (&_hurd_dtable_lock);
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for (i = first; i <= last && i < _hurd_dtablesize; i++)
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{
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struct hurd_fd *fd = _hurd_dtable[i];
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if (fd == NULL || fd->port.port == MACH_PORT_NULL)
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continue;
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__spin_lock (&fd->port.lock);
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if (flags & CLOSE_RANGE_CLOEXEC)
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fd->flags |= FD_CLOEXEC;
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else
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{
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_hurd_port_set (&fd->ctty, MACH_PORT_NULL);
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_hurd_port_locked_set (&fd->port, MACH_PORT_NULL);
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}
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__spin_unlock (&fd->port.lock);
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}
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__mutex_unlock (&_hurd_dtable_lock);
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HURD_CRITICAL_END;
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return 0;
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}
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libc_hidden_def (__close_range)
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weak_alias (__close_range, close_range)
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