fs2-posix.cpp revision cb058427ba3e482de214d42efdd8effaa2b670c7
/* $Id$ */
/** @file
* IPRT - File System Helpers, POSIX, Part 2.
*/
/*
* Copyright (C) 2006-2010 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE 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.
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#define RTTIME_INCL_TIMESPEC
#include <sys/time.h>
#include <sys/param.h>
#ifndef DEV_BSIZE
# include <sys/stat.h>
# define DEV_BSIZE S_BLKSIZE /** @todo bird: add DEV_BSIZE to sys/param.h on OS/2. */
#endif
#include <iprt/fs.h>
#include "internal/iprt.h"
#include <iprt/assert.h>
#include <iprt/time.h>
#include "internal/fs.h"
/**
* Internal worker function which setups RTFSOBJINFO based on a UNIX stat struct.
*
* @param pObjInfo The file system object info structure to setup.
* @param pStat The stat structure to use.
* @param pszName The filename which this applies to (exe/hidden check).
* @param cbName The length of that filename. (optional, set 0)
*/
void rtFsConvertStatToObjInfo(PRTFSOBJINFO pObjInfo, const struct stat *pStat, const char *pszName, unsigned cbName)
{
pObjInfo->cbObject = pStat->st_size;
pObjInfo->cbAllocated = pStat->st_blocks * DEV_BSIZE;
#ifdef HAVE_STAT_NSEC
RTTimeSpecAddNano(RTTimeSpecSetSeconds(&pObjInfo->AccessTime, pStat->st_atime), pStat->st_atimensec);
RTTimeSpecAddNano(RTTimeSpecSetSeconds(&pObjInfo->ModificationTime, pStat->st_mtime), pStat->st_mtimensec);
RTTimeSpecAddNano(RTTimeSpecSetSeconds(&pObjInfo->ChangeTime, pStat->st_ctime), pStat->st_ctimensec);
#ifdef HAVE_STAT_BIRTHTIME
RTTimeSpecAddNano(RTTimeSpecSetSeconds(&pObjInfo->BirthTime, pStat->st_birthtime), pStat->st_birthtimensec);
#endif
#elif defined(HAVE_STAT_TIMESPEC_BRIEF)
RTTimeSpecSetTimespec(&pObjInfo->AccessTime, &pStat->st_atim);
RTTimeSpecSetTimespec(&pObjInfo->ModificationTime, &pStat->st_mtim);
RTTimeSpecSetTimespec(&pObjInfo->ChangeTime, &pStat->st_ctim);
# ifdef HAVE_STAT_BIRTHTIME
RTTimeSpecSetTimespec(&pObjInfo->BirthTime, &pStat->st_birthtim);
# endif
#elif defined(HAVE_STAT_TIMESPEC)
RTTimeSpecSetTimespec(&pObjInfo->AccessTime, pStat->st_atimespec);
RTTimeSpecSetTimespec(&pObjInfo->ModificationTime, pStat->st_mtimespec);
RTTimeSpecSetTimespec(&pObjInfo->ChangeTime, pStat->st_ctimespec);
# ifdef HAVE_STAT_BIRTHTIME
RTTimeSpecSetTimespec(&pObjInfo->BirthTime, pStat->st_birthtimespec);
# endif
#else /* just the normal stuff */
RTTimeSpecSetSeconds(&pObjInfo->AccessTime, pStat->st_atime);
RTTimeSpecSetSeconds(&pObjInfo->ModificationTime, pStat->st_mtime);
RTTimeSpecSetSeconds(&pObjInfo->ChangeTime, pStat->st_ctime);
# ifdef HAVE_STAT_BIRTHTIME
RTTimeSpecSetSeconds(&pObjInfo->BirthTime, pStat->st_birthtime);
# endif
#endif
#ifndef HAVE_STAT_BIRTHTIME
pObjInfo->BirthTime = pObjInfo->ChangeTime;
#endif
/* the file mode */
RTFMODE fMode = pStat->st_mode & RTFS_UNIX_MASK;
Assert(RTFS_UNIX_ISUID == S_ISUID);
Assert(RTFS_UNIX_ISGID == S_ISGID);
#ifdef S_ISTXT
Assert(RTFS_UNIX_ISTXT == S_ISTXT);
#elif defined(S_ISVTX)
Assert(RTFS_UNIX_ISTXT == S_ISVTX);
#else
#error "S_ISVTX / S_ISTXT isn't defined"
#endif
Assert(RTFS_UNIX_IRWXU == S_IRWXU);
Assert(RTFS_UNIX_IRUSR == S_IRUSR);
Assert(RTFS_UNIX_IWUSR == S_IWUSR);
Assert(RTFS_UNIX_IXUSR == S_IXUSR);
Assert(RTFS_UNIX_IRWXG == S_IRWXG);
Assert(RTFS_UNIX_IRGRP == S_IRGRP);
Assert(RTFS_UNIX_IWGRP == S_IWGRP);
Assert(RTFS_UNIX_IXGRP == S_IXGRP);
Assert(RTFS_UNIX_IRWXO == S_IRWXO);
Assert(RTFS_UNIX_IROTH == S_IROTH);
Assert(RTFS_UNIX_IWOTH == S_IWOTH);
Assert(RTFS_UNIX_IXOTH == S_IXOTH);
Assert(RTFS_TYPE_FIFO == S_IFIFO);
Assert(RTFS_TYPE_DEV_CHAR == S_IFCHR);
Assert(RTFS_TYPE_DIRECTORY == S_IFDIR);
Assert(RTFS_TYPE_DEV_BLOCK == S_IFBLK);
Assert(RTFS_TYPE_FILE == S_IFREG);
Assert(RTFS_TYPE_SYMLINK == S_IFLNK);
Assert(RTFS_TYPE_SOCKET == S_IFSOCK);
#ifdef S_IFWHT
Assert(RTFS_TYPE_WHITEOUT == S_IFWHT);
#endif
Assert(RTFS_TYPE_MASK == S_IFMT);
pObjInfo->Attr.fMode = rtFsModeFromUnix(fMode, pszName, cbName);
/* additional unix attribs */
pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_UNIX;
pObjInfo->Attr.u.Unix.uid = pStat->st_uid;
pObjInfo->Attr.u.Unix.gid = pStat->st_gid;
pObjInfo->Attr.u.Unix.cHardlinks = pStat->st_nlink;
pObjInfo->Attr.u.Unix.INodeIdDevice = pStat->st_dev;
pObjInfo->Attr.u.Unix.INodeId = pStat->st_ino;
#ifdef HAVE_STAT_FLAGS
pObjInfo->Attr.u.Unix.fFlags = pStat->st_flags;
#else
pObjInfo->Attr.u.Unix.fFlags = 0;
#endif
#ifdef HAVE_STAT_GEN
pObjInfo->Attr.u.Unix.GenerationId = pStat->st_gen;
#else
pObjInfo->Attr.u.Unix.GenerationId = 0;
#endif
pObjInfo->Attr.u.Unix.Device = pStat->st_rdev;
}