diff options
Diffstat (limited to 'src/VBox/Runtime/r3/posix/path2-posix.cpp')
| -rw-r--r-- | src/VBox/Runtime/r3/posix/path2-posix.cpp | 316 |
1 files changed, 316 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r3/posix/path2-posix.cpp b/src/VBox/Runtime/r3/posix/path2-posix.cpp new file mode 100644 index 00000000..9af9512f --- /dev/null +++ b/src/VBox/Runtime/r3/posix/path2-posix.cpp @@ -0,0 +1,316 @@ +/* $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; +} + |