| 1 | /* $Id: fs2-posix.cpp 76553 2019-01-01 01:45:53Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - File System Helpers, POSIX, Part 2.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2019 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 |
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| 28 | /*********************************************************************************************************************************
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| 29 | * Header Files *
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| 30 | *********************************************************************************************************************************/
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| 31 | #define RTTIME_INCL_TIMESPEC
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| 32 | #include <sys/time.h>
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| 33 | #include <sys/param.h>
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| 34 | #ifndef DEV_BSIZE
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| 35 | # include <sys/stat.h>
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| 36 | # if defined(RT_OS_HAIKU) && !defined(S_BLKSIZE)
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| 37 | # define S_BLKSIZE 512
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| 38 | # endif
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| 39 | # define DEV_BSIZE S_BLKSIZE /** @todo bird: add DEV_BSIZE to sys/param.h on OS/2. */
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| 40 | #endif
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| 41 |
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| 42 | #include <iprt/fs.h>
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| 43 | #include "internal/iprt.h"
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| 44 |
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| 45 | #include <iprt/assert.h>
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| 46 | #include <iprt/time.h>
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| 47 | #include "internal/fs.h"
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| 48 |
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| 49 |
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| 50 | /**
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| 51 | * Internal worker function which setups RTFSOBJINFO based on a UNIX stat struct.
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| 52 | *
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| 53 | * @param pObjInfo The file system object info structure to setup.
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| 54 | * @param pStat The stat structure to use.
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| 55 | * @param pszName The filename which this applies to (exe/hidden check).
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| 56 | * @param cbName The length of that filename. (optional, set 0)
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| 57 | */
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| 58 | void rtFsConvertStatToObjInfo(PRTFSOBJINFO pObjInfo, const struct stat *pStat, const char *pszName, unsigned cbName)
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| 59 | {
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| 60 | pObjInfo->cbObject = pStat->st_size;
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| 61 | pObjInfo->cbAllocated = pStat->st_blocks * DEV_BSIZE;
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| 62 |
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| 63 | #ifdef HAVE_STAT_NSEC
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| 64 | RTTimeSpecAddNano(RTTimeSpecSetSeconds(&pObjInfo->AccessTime, pStat->st_atime), pStat->st_atimensec);
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| 65 | RTTimeSpecAddNano(RTTimeSpecSetSeconds(&pObjInfo->ModificationTime, pStat->st_mtime), pStat->st_mtimensec);
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| 66 | RTTimeSpecAddNano(RTTimeSpecSetSeconds(&pObjInfo->ChangeTime, pStat->st_ctime), pStat->st_ctimensec);
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| 67 | #ifdef HAVE_STAT_BIRTHTIME
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| 68 | RTTimeSpecAddNano(RTTimeSpecSetSeconds(&pObjInfo->BirthTime, pStat->st_birthtime), pStat->st_birthtimensec);
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| 69 | #endif
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| 70 |
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| 71 | #elif defined(HAVE_STAT_TIMESPEC_BRIEF)
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| 72 | RTTimeSpecSetTimespec(&pObjInfo->AccessTime, &pStat->st_atim);
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| 73 | RTTimeSpecSetTimespec(&pObjInfo->ModificationTime, &pStat->st_mtim);
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| 74 | RTTimeSpecSetTimespec(&pObjInfo->ChangeTime, &pStat->st_ctim);
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| 75 | # ifdef HAVE_STAT_BIRTHTIME
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| 76 | RTTimeSpecSetTimespec(&pObjInfo->BirthTime, &pStat->st_birthtim);
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| 77 | # endif
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| 78 |
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| 79 | #elif defined(HAVE_STAT_TIMESPEC)
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| 80 | RTTimeSpecSetTimespec(&pObjInfo->AccessTime, pStat->st_atimespec);
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| 81 | RTTimeSpecSetTimespec(&pObjInfo->ModificationTime, pStat->st_mtimespec);
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| 82 | RTTimeSpecSetTimespec(&pObjInfo->ChangeTime, pStat->st_ctimespec);
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| 83 | # ifdef HAVE_STAT_BIRTHTIME
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| 84 | RTTimeSpecSetTimespec(&pObjInfo->BirthTime, pStat->st_birthtimespec);
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| 85 | # endif
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| 86 |
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| 87 | #else /* just the normal stuff */
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| 88 | RTTimeSpecSetSeconds(&pObjInfo->AccessTime, pStat->st_atime);
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| 89 | RTTimeSpecSetSeconds(&pObjInfo->ModificationTime, pStat->st_mtime);
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| 90 | RTTimeSpecSetSeconds(&pObjInfo->ChangeTime, pStat->st_ctime);
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| 91 | # ifdef HAVE_STAT_BIRTHTIME
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| 92 | RTTimeSpecSetSeconds(&pObjInfo->BirthTime, pStat->st_birthtime);
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| 93 | # endif
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| 94 | #endif
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| 95 | #ifndef HAVE_STAT_BIRTHTIME
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| 96 | pObjInfo->BirthTime = pObjInfo->ChangeTime;
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| 97 | #endif
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| 98 |
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| 99 |
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| 100 | /* the file mode */
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| 101 | RTFMODE fMode = pStat->st_mode & RTFS_UNIX_MASK;
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| 102 | Assert(RTFS_UNIX_ISUID == S_ISUID);
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| 103 | Assert(RTFS_UNIX_ISGID == S_ISGID);
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| 104 | #ifdef S_ISTXT
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| 105 | Assert(RTFS_UNIX_ISTXT == S_ISTXT);
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| 106 | #elif defined(S_ISVTX)
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| 107 | Assert(RTFS_UNIX_ISTXT == S_ISVTX);
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| 108 | #else
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| 109 | #error "S_ISVTX / S_ISTXT isn't defined"
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| 110 | #endif
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| 111 | Assert(RTFS_UNIX_IRWXU == S_IRWXU);
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| 112 | Assert(RTFS_UNIX_IRUSR == S_IRUSR);
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| 113 | Assert(RTFS_UNIX_IWUSR == S_IWUSR);
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| 114 | Assert(RTFS_UNIX_IXUSR == S_IXUSR);
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| 115 | Assert(RTFS_UNIX_IRWXG == S_IRWXG);
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| 116 | Assert(RTFS_UNIX_IRGRP == S_IRGRP);
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| 117 | Assert(RTFS_UNIX_IWGRP == S_IWGRP);
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| 118 | Assert(RTFS_UNIX_IXGRP == S_IXGRP);
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| 119 | Assert(RTFS_UNIX_IRWXO == S_IRWXO);
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| 120 | Assert(RTFS_UNIX_IROTH == S_IROTH);
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| 121 | Assert(RTFS_UNIX_IWOTH == S_IWOTH);
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| 122 | Assert(RTFS_UNIX_IXOTH == S_IXOTH);
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| 123 | Assert(RTFS_TYPE_FIFO == S_IFIFO);
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| 124 | Assert(RTFS_TYPE_DEV_CHAR == S_IFCHR);
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| 125 | Assert(RTFS_TYPE_DIRECTORY == S_IFDIR);
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| 126 | Assert(RTFS_TYPE_DEV_BLOCK == S_IFBLK);
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| 127 | Assert(RTFS_TYPE_FILE == S_IFREG);
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| 128 | Assert(RTFS_TYPE_SYMLINK == S_IFLNK);
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| 129 | Assert(RTFS_TYPE_SOCKET == S_IFSOCK);
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| 130 | #ifdef S_IFWHT
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| 131 | Assert(RTFS_TYPE_WHITEOUT == S_IFWHT);
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| 132 | #endif
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| 133 | Assert(RTFS_TYPE_MASK == S_IFMT);
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| 134 |
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| 135 | pObjInfo->Attr.fMode = rtFsModeFromUnix(fMode, pszName, cbName);
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| 136 |
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| 137 | /* additional unix attribs */
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| 138 | pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_UNIX;
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| 139 | pObjInfo->Attr.u.Unix.uid = pStat->st_uid;
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| 140 | pObjInfo->Attr.u.Unix.gid = pStat->st_gid;
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| 141 | pObjInfo->Attr.u.Unix.cHardlinks = pStat->st_nlink;
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| 142 | pObjInfo->Attr.u.Unix.INodeIdDevice = pStat->st_dev;
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| 143 | pObjInfo->Attr.u.Unix.INodeId = pStat->st_ino;
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| 144 | #ifdef HAVE_STAT_FLAGS
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| 145 | pObjInfo->Attr.u.Unix.fFlags = pStat->st_flags;
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| 146 | #else
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| 147 | pObjInfo->Attr.u.Unix.fFlags = 0;
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| 148 | #endif
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| 149 | #ifdef HAVE_STAT_GEN
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| 150 | pObjInfo->Attr.u.Unix.GenerationId = pStat->st_gen;
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| 151 | #else
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| 152 | pObjInfo->Attr.u.Unix.GenerationId = 0;
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| 153 | #endif
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| 154 | pObjInfo->Attr.u.Unix.Device = pStat->st_rdev;
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| 155 | }
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| 156 |
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