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3e78f0910e
* hurd/hurdfchdir.c (_hurd_change_directory_port_from_fd): Rewrite without HURD_DPORT_USE to clean up warnings. * hurd/dtable.c (get_dtable_port): Likewise.
57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
/* Change a port cell to a directory in an open file descriptor.
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Copyright (C) 1999 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 not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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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 <hurd/fd.h>
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#include <fcntl.h>
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int
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_hurd_change_directory_port_from_fd (struct hurd_port *portcell, int fd)
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{
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int ret;
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struct hurd_fd *d = _hurd_fd_get (fd);
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if (!d)
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return __hurd_fail (EBADF);
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HURD_CRITICAL_BEGIN;
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ret = HURD_PORT_USE (&d->port,
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({
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int ret;
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file_t dir = __file_name_lookup_under (port, ".",
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0, 0);
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if (dir == MACH_PORT_NULL)
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ret = -1;
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else
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{
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_hurd_port_set (portcell, dir);
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ret = 0;
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}
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ret;
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}));
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HURD_CRITICAL_END;
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return ret;
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}
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