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/* $Id: path2-posix.cpp $ */
/** @file
* IPRT - Path Manipulation, POSIX, Part 2 - RTPathQueryInfo.
*/
/*
* 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_PATH
#include <stdlib.h>
#include <limits.h>
#include <errno.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <stdio.h>
#include <sys/types.h>
#include <iprt/path.h>
#include <iprt/env.h>
#include <iprt/assert.h>
#include <iprt/string.h>
#include <iprt/err.h>
#include <iprt/log.h>
#include "internal/path.h"
#include "internal/process.h"
#include "internal/fs.h"
RTR3DECL(int) RTPathQueryInfo(const char *pszPath, PRTFSOBJINFO pObjInfo, RTFSOBJATTRADD enmAdditionalAttribs)
{
return RTPathQueryInfoEx(pszPath, pObjInfo, enmAdditionalAttribs, RTPATH_F_ON_LINK);
}
RTR3DECL(int) RTPathQueryInfoEx(const char *pszPath, PRTFSOBJINFO pObjInfo, RTFSOBJATTRADD enmAdditionalAttribs, uint32_t fFlags)
{
/*
* Validate input.
*/
AssertPtrReturn(pszPath, VERR_INVALID_POINTER);
AssertReturn(*pszPath, VERR_INVALID_PARAMETER);
AssertPtrReturn(pObjInfo, VERR_INVALID_POINTER);
AssertMsgReturn( enmAdditionalAttribs >= RTFSOBJATTRADD_NOTHING
&& enmAdditionalAttribs <= RTFSOBJATTRADD_LAST,
("Invalid enmAdditionalAttribs=%p\n", enmAdditionalAttribs),
VERR_INVALID_PARAMETER);
AssertMsgReturn(RTPATH_F_IS_VALID(fFlags, 0), ("%#x\n", fFlags), VERR_INVALID_PARAMETER);
/*
* Convert the filename.
*/
char const *pszNativePath;
int rc = rtPathToNative(&pszNativePath, pszPath, NULL);
if (RT_SUCCESS(rc))
{
struct stat Stat;
if (fFlags & RTPATH_F_FOLLOW_LINK)
rc = stat(pszNativePath, &Stat);
else
rc = lstat(pszNativePath, &Stat); /** @todo how doesn't have lstat again? */
if (!rc)
{
rtFsConvertStatToObjInfo(pObjInfo, &Stat, pszPath, 0);
switch (enmAdditionalAttribs)
{
case RTFSOBJATTRADD_NOTHING:
case RTFSOBJATTRADD_UNIX:
Assert(pObjInfo->Attr.enmAdditional == RTFSOBJATTRADD_UNIX);
break;
case RTFSOBJATTRADD_UNIX_OWNER:
rtFsObjInfoAttrSetUnixOwner(pObjInfo, Stat.st_uid);
break;
case RTFSOBJATTRADD_UNIX_GROUP:
rtFsObjInfoAttrSetUnixGroup(pObjInfo, Stat.st_gid);
break;
case RTFSOBJATTRADD_EASIZE:
/** @todo Use SGI extended attribute interface to query EA info. */
pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_EASIZE;
pObjInfo->Attr.u.EASize.cb = 0;
break;
default:
AssertMsgFailed(("Impossible!\n"));
return VERR_INTERNAL_ERROR;
}
}
else
rc = RTErrConvertFromErrno(errno);
rtPathFreeNative(pszNativePath, pszPath);
}
LogFlow(("RTPathQueryInfoEx(%p:{%s}, pObjInfo=%p, %d): returns %Rrc\n",
pszPath, pszPath, pObjInfo, enmAdditionalAttribs, rc));
return rc;
}
RTR3DECL(int) RTPathSetTimes(const char *pszPath, PCRTTIMESPEC pAccessTime, PCRTTIMESPEC pModificationTime,
PCRTTIMESPEC pChangeTime, PCRTTIMESPEC pBirthTime)
{
return RTPathSetTimesEx(pszPath, pAccessTime, pModificationTime, pChangeTime, pBirthTime, RTPATH_F_ON_LINK);
}
RTR3DECL(int) RTPathSetTimesEx(const char *pszPath, PCRTTIMESPEC pAccessTime, PCRTTIMESPEC pModificationTime,
PCRTTIMESPEC pChangeTime, PCRTTIMESPEC pBirthTime, uint32_t fFlags)
{
/*
* Validate input.
*/
AssertPtrReturn(pszPath, VERR_INVALID_POINTER);
AssertReturn(*pszPath, VERR_INVALID_PARAMETER);
AssertPtrNullReturn(pAccessTime, VERR_INVALID_POINTER);
AssertPtrNullReturn(pModificationTime, VERR_INVALID_POINTER);
AssertPtrNullReturn(pChangeTime, VERR_INVALID_POINTER);
AssertPtrNullReturn(pBirthTime, VERR_INVALID_POINTER);
AssertMsgReturn(RTPATH_F_IS_VALID(fFlags, 0), ("%#x\n", fFlags), VERR_INVALID_PARAMETER);
/*
* Convert the paths.
*/
char const *pszNativePath;
int rc = rtPathToNative(&pszNativePath, pszPath, NULL);
if (RT_SUCCESS(rc))
{
RTFSOBJINFO ObjInfo;
/*
* If it's a no-op, we'll only verify the existance of the file.
*/
if (!pAccessTime && !pModificationTime)
rc = RTPathQueryInfoEx(pszPath, &ObjInfo, RTFSOBJATTRADD_NOTHING, fFlags);
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
{
rc = RTPathQueryInfoEx(pszPath, &ObjInfo, RTFSOBJATTRADD_UNIX, fFlags);
if (RT_SUCCESS(rc))
{
RTTimeSpecGetTimeval(pAccessTime ? pAccessTime : &ObjInfo.AccessTime, &aTimevals[0]);
RTTimeSpecGetTimeval(pModificationTime ? pModificationTime : &ObjInfo.ModificationTime, &aTimevals[1]);
}
else
Log(("RTPathSetTimes('%s',%p,%p,,): RTPathQueryInfo failed with %Rrc\n",
pszPath, pAccessTime, pModificationTime, rc));
}
if (RT_SUCCESS(rc))
{
if (fFlags & RTPATH_F_FOLLOW_LINK)
{
if (utimes(pszNativePath, aTimevals))
rc = RTErrConvertFromErrno(errno);
}
#if (defined(RT_OS_DARWIN) && MAC_OS_X_VERSION_MIN_REQUIRED >= 1050) \
|| defined(RT_OS_FREEBSD) \
|| defined(RT_OS_LINUX) \
|| defined(RT_OS_OS2) /** @todo who really has lutimes? */
else
{
if (lutimes(pszNativePath, aTimevals))
{
/* If lutimes is not supported (e.g. linux < 2.6.22), try fall back on utimes: */
if (errno != ENOSYS)
rc = RTErrConvertFromErrno(errno);
else
{
if (pAccessTime && pModificationTime)
rc = RTPathQueryInfoEx(pszPath, &ObjInfo, RTFSOBJATTRADD_UNIX, fFlags);
if (RT_SUCCESS(rc) && !RTFS_IS_SYMLINK(ObjInfo.Attr.fMode))
{
if (utimes(pszNativePath, aTimevals))
rc = RTErrConvertFromErrno(errno);
}
else
rc = VERR_NOT_SUPPORTED;
}
}
}
#else
else
{
if (pAccessTime && pModificationTime)
rc = RTPathQueryInfoEx(pszPath, &ObjInfo, RTFSOBJATTRADD_UNIX, fFlags);
if (RT_SUCCESS(rc) && RTFS_IS_SYMLINK(ObjInfo.Attr.fMode))
rc = VERR_NS_SYMLINK_SET_TIME;
else if (RT_SUCCESS(rc))
{
if (utimes(pszNativePath, aTimevals))
rc = RTErrConvertFromErrno(errno);
}
}
#endif
if (RT_FAILURE(rc))
Log(("RTPathSetTimes('%s',%p,%p,,): failed with %Rrc and errno=%d\n",
pszPath, pAccessTime, pModificationTime, rc, errno));
}
}
rtPathFreeNative(pszNativePath, pszPath);
}
LogFlow(("RTPathSetTimes(%p:{%s}, %p:{%RDtimespec}, %p:{%RDtimespec}, %p:{%RDtimespec}, %p:{%RDtimespec}): return %Rrc\n",
pszPath, pszPath, pAccessTime, pAccessTime, pModificationTime, pModificationTime,
pChangeTime, pChangeTime, pBirthTime, pBirthTime, rc));
return rc;
}
RTR3DECL(int) RTPathSetOwner(const char *pszPath, uint32_t uid, uint32_t gid)
{
return RTPathSetOwnerEx(pszPath, uid, gid, RTPATH_F_ON_LINK);
}
RTR3DECL(int) RTPathSetOwnerEx(const char *pszPath, uint32_t uid, uint32_t gid, uint32_t fFlags)
{
/*
* Validate input.
*/
AssertPtrReturn(pszPath, VERR_INVALID_POINTER);
AssertReturn(*pszPath, VERR_INVALID_PARAMETER);
AssertMsgReturn(RTPATH_F_IS_VALID(fFlags, 0), ("%#x\n", fFlags), VERR_INVALID_PARAMETER);
uid_t uidNative = uid != NIL_RTUID ? (uid_t)uid : (uid_t)-1;
AssertReturn(uid == uidNative, VERR_INVALID_PARAMETER);
gid_t gidNative = gid != NIL_RTGID ? (gid_t)gid : (uid_t)-1;
AssertReturn(gid == gidNative, VERR_INVALID_PARAMETER);
/*
* Convert the path.
*/
char const *pszNativePath;
int rc = rtPathToNative(&pszNativePath, pszPath, NULL);
if (RT_SUCCESS(rc))
{
if (fFlags & RTPATH_F_FOLLOW_LINK)
{
if (chown(pszNativePath, uidNative, gidNative))
rc = RTErrConvertFromErrno(errno);
}
#if 1
else
{
if (lchown(pszNativePath, uidNative, gidNative))
rc = RTErrConvertFromErrno(errno);
}
#else
else
{
RTFSOBJINFO ObjInfo;
rc = RTPathQueryInfoEx(pszPath, &ObjInfo, RTFSOBJATTRADD_UNIX, fFlags);
if (RT_SUCCESS(rc) && RTFS_IS_SYMLINK(ObjInfo.Attr.fMode))
rc = VERR_NS_SYMLINK_CHANGE_OWNER;
else if (RT_SUCCESS(rc))
{
if (lchown(pszNativePath, uidNative, gidNative))
rc = RTErrConvertFromErrno(errno);
}
}
#endif
if (RT_FAILURE(rc))
Log(("RTPathSetOwnerEx('%s',%d,%d): failed with %Rrc and errno=%d\n",
pszPath, uid, gid, rc, errno));
rtPathFreeNative(pszNativePath, pszPath);
}
LogFlow(("RTPathSetOwnerEx(%p:{%s}, uid=%d, gid=%d): return %Rrc\n",
pszPath, pszPath, uid, gid, rc));
return rc;
}
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