| 1 | /* $Id: RTFileQuerySectorSize-freebsd.cpp 93115 2022-01-01 11:31:46Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * IPRT - RTFileQuerySectorSize, FreeBSD.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2017-2022 Oracle Corporation
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | *
|
|---|
| 17 | * The contents of this file may alternatively be used under the terms
|
|---|
| 18 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 20 | * VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 21 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 22 | *
|
|---|
| 23 | * You may elect to license modified versions of this file under the
|
|---|
| 24 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 25 | */
|
|---|
| 26 |
|
|---|
| 27 |
|
|---|
| 28 | /*********************************************************************************************************************************
|
|---|
| 29 | * Header Files *
|
|---|
| 30 | *********************************************************************************************************************************/
|
|---|
| 31 | #include "internal/iprt.h"
|
|---|
| 32 | #include <iprt/file.h>
|
|---|
| 33 |
|
|---|
| 34 | #include <iprt/assert.h>
|
|---|
| 35 | #include <iprt/errcore.h>
|
|---|
| 36 |
|
|---|
| 37 | #include <errno.h>
|
|---|
| 38 | #include <sys/disk.h>
|
|---|
| 39 | #include <sys/stat.h>
|
|---|
| 40 | #include <sys/ioctl.h>
|
|---|
| 41 |
|
|---|
| 42 |
|
|---|
| 43 |
|
|---|
| 44 | RTDECL(int) RTFileQuerySectorSize(RTFILE hFile, uint32_t *pcbSector)
|
|---|
| 45 | {
|
|---|
| 46 | AssertPtrReturn(pcbSector, VERR_INVALID_PARAMETER);
|
|---|
| 47 |
|
|---|
| 48 | int rc;
|
|---|
| 49 | int const fd = (int)RTFileToNative(hFile);
|
|---|
| 50 | struct stat DevStat = { 0 };
|
|---|
| 51 | if (!fstat(fd, &DevStat))
|
|---|
| 52 | {
|
|---|
| 53 | if (S_ISCHR(DevStat.st_mode))
|
|---|
| 54 | {
|
|---|
| 55 | u_int cbSector = 0;
|
|---|
| 56 | if (!ioctl(fd, DIOCGSECTORSIZE, &cbSector))
|
|---|
| 57 | {
|
|---|
| 58 | AssertReturn(cbSector > 0, VERR_INVALID_FUNCTION);
|
|---|
| 59 | *pcbSector = cbSector;
|
|---|
| 60 | return VINF_SUCCESS;
|
|---|
| 61 | }
|
|---|
| 62 | rc = RTErrConvertFromErrno(errno);
|
|---|
| 63 | AssertMsgFailed(("ioctl failed: errno=%d / %Rrc\n", errno, rc));
|
|---|
| 64 | }
|
|---|
| 65 | else
|
|---|
| 66 | {
|
|---|
| 67 | AssertMsgFailed(("not a character device.\n"));
|
|---|
| 68 | rc = VERR_INVALID_FUNCTION;
|
|---|
| 69 | }
|
|---|
| 70 | }
|
|---|
| 71 | else
|
|---|
| 72 | {
|
|---|
| 73 | rc = RTErrConvertFromErrno(errno);
|
|---|
| 74 | AssertMsgFailed(("fstat failed: errno=%d / %Rrc\n", errno, rc));
|
|---|
| 75 | }
|
|---|
| 76 | return rc;
|
|---|
| 77 | }
|
|---|
| 78 |
|
|---|
