VirtualBox

source: vbox/trunk/src/VBox/Runtime/common/file/nocrt-dup.cpp@ 103795

Last change on this file since 103795 was 98103, checked in by vboxsync, 2 years ago

Copyright year updates by scm.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 2.7 KB
Line 
1/* $Id: nocrt-dup.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
2/** @file
3 * IPRT - No-CRT - dup().
4 */
5
6/*
7 * Copyright (C) 2022-2023 Oracle and/or its affiliates.
8 *
9 * This file is part of VirtualBox base platform packages, as
10 * available from https://www.virtualbox.org.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation, in version 3 of the
15 * License.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, see <https://www.gnu.org/licenses>.
24 *
25 * The contents of this file may alternatively be used under the terms
26 * of the Common Development and Distribution License Version 1.0
27 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
28 * in the VirtualBox distribution, in which case the provisions of the
29 * CDDL are applicable instead of those of the GPL.
30 *
31 * You may elect to license modified versions of this file under the
32 * terms and conditions of either the GPL or the CDDL or both.
33 *
34 * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
35 */
36
37
38/*********************************************************************************************************************************
39* Header Files *
40*********************************************************************************************************************************/
41#define IPRT_NO_CRT_FOR_3RD_PARTY
42#include "internal/nocrt.h"
43#include <iprt/nocrt/unistd.h>
44#include <iprt/nocrt/errno.h>
45#include <iprt/assert.h>
46#include <iprt/errcore.h>
47#include <iprt/file.h>
48
49
50#undef dup
51int RT_NOCRT(dup)(int fdSrc)
52{
53 RTFILE hFileSrc;
54 int rc = RTFileFromNative(&hFileSrc, fdSrc);
55 if (RT_SUCCESS(rc))
56 {
57 RTFILE hFileNew;
58#if defined(RT_OS_WINDOWS) /* default on windows is noinherit */
59 rc = RTFileDup(hFileSrc, 0, &hFileNew);
60#else
61 rc = RTFileDup(hFileSrc, RTFILE_O_INHERIT, &hFileNew);
62#endif
63 if (RT_SUCCESS(rc))
64 {
65 intptr_t fdNew = RTFileToNative(hFileNew);
66 AssertMsg((int)fdNew == fdNew, ("%#zx\n", fdNew));
67 if ((int)fdNew == fdNew)
68 return (int)fdNew;
69 RTFileClose(hFileNew);
70 errno = EMFILE;
71 return -1;
72 }
73 }
74 errno = RTErrConvertToErrno(rc);
75 return -1;
76}
77RT_ALIAS_AND_EXPORT_NOCRT_SYMBOL(dup);
78
Note: See TracBrowser for help on using the repository browser.

© 2024 Oracle Support Privacy / Do Not Sell My Info Terms of Use Trademark Policy Automated Access Etiquette