1 | /* $Id: RTFileQuerySectorSize-darwin.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
|
---|
2 | /** @file
|
---|
3 | * IPRT - RTFileQuerySectorSize, Darwin.
|
---|
4 | */
|
---|
5 |
|
---|
6 | /*
|
---|
7 | * Copyright (C) 2017-2023 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 | #include "internal/iprt.h"
|
---|
42 | #include <iprt/file.h>
|
---|
43 |
|
---|
44 | #include <iprt/assert.h>
|
---|
45 | #include <iprt/errcore.h>
|
---|
46 |
|
---|
47 | #include <sys/stat.h>
|
---|
48 | #include <sys/disk.h>
|
---|
49 | #include <sys/ioctl.h>
|
---|
50 | #include <fcntl.h>
|
---|
51 | #include <errno.h>
|
---|
52 |
|
---|
53 |
|
---|
54 | RTDECL(int) RTFileQuerySectorSize(RTFILE hFile, uint32_t *pcbSector)
|
---|
55 | {
|
---|
56 | AssertPtrReturn(pcbSector, VERR_INVALID_PARAMETER);
|
---|
57 |
|
---|
58 | int rc;
|
---|
59 | int const fd = (int)RTFileToNative(hFile);
|
---|
60 | struct stat DevStat = { 0 };
|
---|
61 | if (!fstat(fd, &DevStat))
|
---|
62 | {
|
---|
63 | if (S_ISBLK(DevStat.st_mode) || S_ISCHR(DevStat.st_mode))
|
---|
64 | {
|
---|
65 | uint32_t cbLogicalBlock = 0;
|
---|
66 | if (!ioctl(fd, DKIOCGETBLOCKSIZE, &cbLogicalBlock))
|
---|
67 | {
|
---|
68 | AssertReturn(cbLogicalBlock > 0, VERR_INVALID_FUNCTION);
|
---|
69 | *pcbSector = cbLogicalBlock;
|
---|
70 | return VINF_SUCCESS;
|
---|
71 | }
|
---|
72 |
|
---|
73 | rc = RTErrConvertFromErrno(errno);
|
---|
74 | AssertMsgFailed(("ioctl failed: errno=%d / %Rrc\n", errno, rc));
|
---|
75 | }
|
---|
76 | else
|
---|
77 | {
|
---|
78 | AssertMsgFailed(("not a block or character device.\n"));
|
---|
79 | rc = VERR_INVALID_FUNCTION;
|
---|
80 | }
|
---|
81 | }
|
---|
82 | else
|
---|
83 | {
|
---|
84 | rc = RTErrConvertFromErrno(errno);
|
---|
85 | AssertMsgFailed(("fstat failed: errno=%d / %Rrc\n", errno, rc));
|
---|
86 | }
|
---|
87 | return rc;
|
---|
88 | }
|
---|
89 |
|
---|