diff options
Diffstat (limited to 'src/VBox/Runtime/r3/darwin/RTFileQuerySectorSize-darwin.cpp')
-rw-r--r-- | src/VBox/Runtime/r3/darwin/RTFileQuerySectorSize-darwin.cpp | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r3/darwin/RTFileQuerySectorSize-darwin.cpp b/src/VBox/Runtime/r3/darwin/RTFileQuerySectorSize-darwin.cpp new file mode 100644 index 00000000..bf246d48 --- /dev/null +++ b/src/VBox/Runtime/r3/darwin/RTFileQuerySectorSize-darwin.cpp @@ -0,0 +1,89 @@ +/* $Id: RTFileQuerySectorSize-darwin.cpp $ */ +/** @file + * IPRT - RTFileQuerySectorSize, Darwin. + */ + +/* + * Copyright (C) 2017-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "internal/iprt.h" +#include <iprt/file.h> + +#include <iprt/assert.h> +#include <iprt/errcore.h> + +#include <sys/stat.h> +#include <sys/disk.h> +#include <sys/ioctl.h> +#include <fcntl.h> +#include <errno.h> + + +RTDECL(int) RTFileQuerySectorSize(RTFILE hFile, uint32_t *pcbSector) +{ + AssertPtrReturn(pcbSector, VERR_INVALID_PARAMETER); + + int rc; + int const fd = (int)RTFileToNative(hFile); + struct stat DevStat = { 0 }; + if (!fstat(fd, &DevStat)) + { + if (S_ISBLK(DevStat.st_mode) || S_ISCHR(DevStat.st_mode)) + { + uint32_t cbLogicalBlock = 0; + if (!ioctl(fd, DKIOCGETBLOCKSIZE, &cbLogicalBlock)) + { + AssertReturn(cbLogicalBlock > 0, VERR_INVALID_FUNCTION); + *pcbSector = cbLogicalBlock; + return VINF_SUCCESS; + } + + rc = RTErrConvertFromErrno(errno); + AssertMsgFailed(("ioctl failed: errno=%d / %Rrc\n", errno, rc)); + } + else + { + AssertMsgFailed(("not a block or character device.\n")); + rc = VERR_INVALID_FUNCTION; + } + } + else + { + rc = RTErrConvertFromErrno(errno); + AssertMsgFailed(("fstat failed: errno=%d / %Rrc\n", errno, rc)); + } + return rc; +} + |