49 lines
1.6 KiB
C
49 lines
1.6 KiB
C
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/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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*
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* This file is part of GNU Mes.
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*
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* GNU Mes is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* GNU Mes is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** Commentary:
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Inspired by implementation in GNU C Library:
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__hurd_file_name_lookup, __hurd_file_name_lookup_retry
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Copyright (C) 1992-2016 Free Software Foundation, Inc.
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*/
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#include <gnu/hurd.h>
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#include <gnu/hurd-types.h>
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#include <gnu/syscall.h>
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#include <mach/mach-init.h>
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int
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_open3 (char const *file_name, int flags, int mode)
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{
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mach_port_t port;
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int do_retry;
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char retry_name[1024];
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int start_dir = (file_name[0] == '/') ? INIT_PORT_CRDIR : INIT_PORT_CWDIR;
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mach_port_t start_port = _hurd_startup_data.portarray[start_dir];
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while (file_name[0] == '/')
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file_name++;
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error_t e = __dir_lookup (start_port, file_name, flags, mode, &do_retry, retry_name, &port);
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if (e)
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return -1;
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int fd = _hurd_dtable_count++;
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_hurd_dtable[fd] = port;
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return fd;
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}
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