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/* $Id: fileio2-posix.cpp $ */
/** @file
* IPRT - File I/O, POSIX, Part 2.
*/
/*
* Copyright (C) 2006-2023 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 *
*********************************************************************************************************************************/
#define LOG_GROUP RTLOGGROUP_FILE
#include <errno.h>
#include <sys/stat.h>
#include <sys/types.h>
#ifdef _MSC_VER
# include <io.h>
# include <stdio.h>
#else
# include <unistd.h>
# include <sys/time.h>
#endif
#ifdef RT_OS_LINUX
# include <sys/file.h>
#endif
#if defined(RT_OS_OS2) && (!defined(__INNOTEK_LIBC__) || __INNOTEK_LIBC__ < 0x006)
# include <io.h>
#endif
#ifdef RT_OS_SOLARIS
# define futimes(filedes, timeval) futimesat(filedes, NULL, timeval)
#endif
#ifdef RT_OS_HAIKU
# define USE_FUTIMENS
#endif
#include <iprt/file.h>
#include <iprt/path.h>
#include <iprt/assert.h>
#include <iprt/string.h>
#include <iprt/errcore.h>
#include <iprt/log.h>
#include "internal/file.h"
#include "internal/fs.h"
#include "internal/path.h"
RTR3DECL(int) RTFileQueryInfo(RTFILE hFile, PRTFSOBJINFO pObjInfo, RTFSOBJATTRADD enmAdditionalAttribs)
{
/*
* Validate input.
*/
AssertReturn(hFile != NIL_RTFILE, VERR_INVALID_PARAMETER);
AssertPtrReturn(pObjInfo, VERR_INVALID_PARAMETER);
if ( enmAdditionalAttribs < RTFSOBJATTRADD_NOTHING
|| enmAdditionalAttribs > RTFSOBJATTRADD_LAST)
{
AssertMsgFailed(("Invalid enmAdditionalAttribs=%p\n", enmAdditionalAttribs));
return VERR_INVALID_PARAMETER;
}
/*
* Query file info.
*/
struct stat Stat;
if (fstat(RTFileToNative(hFile), &Stat))
{
int rc = RTErrConvertFromErrno(errno);
Log(("RTFileQueryInfo(%RTfile,,%d): returns %Rrc\n", hFile, enmAdditionalAttribs, rc));
return rc;
}
/*
* Setup the returned data.
*/
rtFsConvertStatToObjInfo(pObjInfo, &Stat, NULL, 0);
/*
* Requested attributes (we cannot provide anything actually).
*/
switch (enmAdditionalAttribs)
{
case RTFSOBJATTRADD_NOTHING:
case RTFSOBJATTRADD_UNIX:
/* done */
break;
case RTFSOBJATTRADD_UNIX_OWNER:
rtFsObjInfoAttrSetUnixOwner(pObjInfo, Stat.st_uid);
break;
case RTFSOBJATTRADD_UNIX_GROUP:
rtFsObjInfoAttrSetUnixGroup(pObjInfo, Stat.st_gid);
break;
case RTFSOBJATTRADD_EASIZE:
pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_EASIZE;
pObjInfo->Attr.u.EASize.cb = 0;
break;
default:
AssertMsgFailed(("Impossible!\n"));
return VERR_INTERNAL_ERROR;
}
LogFlow(("RTFileQueryInfo(%RTfile,,%d): returns VINF_SUCCESS\n", hFile, enmAdditionalAttribs));
return VINF_SUCCESS;
}
RTR3DECL(int) RTFileSetTimes(RTFILE hFile, PCRTTIMESPEC pAccessTime, PCRTTIMESPEC pModificationTime,
PCRTTIMESPEC pChangeTime, PCRTTIMESPEC pBirthTime)
{
NOREF(pChangeTime); NOREF(pBirthTime);
/*
* We can only set AccessTime and ModificationTime, so if neither
* are specified we can return immediately.
*/
if (!pAccessTime && !pModificationTime)
return VINF_SUCCESS;
#ifdef USE_FUTIMENS
struct timespec aTimespecs[2];
if (pAccessTime && pModificationTime)
{
memcpy(&aTimespecs[0], pAccessTime, sizeof(struct timespec));
memcpy(&aTimespecs[1], pModificationTime, sizeof(struct timespec));
}
else
{
RTFSOBJINFO ObjInfo;
int rc = RTFileQueryInfo(hFile, &ObjInfo, RTFSOBJATTRADD_UNIX);
if (RT_FAILURE(rc))
return rc;
memcpy(&aTimespecs[0], pAccessTime ? pAccessTime : &ObjInfo.AccessTime, sizeof(struct timespec));
memcpy(&aTimespecs[1], pModificationTime ? pModificationTime : &ObjInfo.ModificationTime, sizeof(struct timespec));
}
if (futimens(RTFileToNative(hFile), aTimespecs))
{
int rc = RTErrConvertFromErrno(errno);
Log(("RTFileSetTimes(%RTfile,%p,%p,,): returns %Rrc\n", hFile, pAccessTime, pModificationTime, rc));
return rc;
}
#else
/*
* Convert the input to timeval, getting the missing one if necessary,
* and call the API which does the change.
*/
struct timeval aTimevals[2];
if (pAccessTime && pModificationTime)
{
RTTimeSpecGetTimeval(pAccessTime, &aTimevals[0]);
RTTimeSpecGetTimeval(pModificationTime, &aTimevals[1]);
}
else
{
RTFSOBJINFO ObjInfo;
int rc = RTFileQueryInfo(hFile, &ObjInfo, RTFSOBJATTRADD_UNIX);
if (RT_FAILURE(rc))
return rc;
RTTimeSpecGetTimeval(pAccessTime ? pAccessTime : &ObjInfo.AccessTime, &aTimevals[0]);
RTTimeSpecGetTimeval(pModificationTime ? pModificationTime : &ObjInfo.ModificationTime, &aTimevals[1]);
}
/* XXX this falls back to utimes("/proc/self/fd/...",...) for older kernels/glibcs and this
* will not work for hardened builds where this directory is owned by root.root and mode 0500 */
if (futimes(RTFileToNative(hFile), aTimevals))
{
int rc = RTErrConvertFromErrno(errno);
Log(("RTFileSetTimes(%RTfile,%p,%p,,): returns %Rrc\n", hFile, pAccessTime, pModificationTime, rc));
return rc;
}
#endif
return VINF_SUCCESS;
}
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