Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 453 insertions, 0 deletions

diff --git a/sal/osl/unx/file_stat.cxx b/sal/osl/unx/file_stat.cxx
new file mode 100644
index 000000000..3b702905c
--- /dev/null
+++ b/sal/osl/unx/file_stat.cxx
@@ -0,0 +1,453 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <osl/file.h>
+
+#include "system.hxx"
+#include <sys/types.h>
+#include <dirent.h>
+#include <errno.h>
+#include <limits.h>
+#include <unistd.h>
+
+#include <osl/diagnose.h>
+#include <osl/thread.h>
+
+#include "file_impl.hxx"
+#include "file_error_transl.hxx"
+#include "file_path_helper.hxx"
+#include "file_url.hxx"
+#include "uunxapi.hxx"
+
+namespace
+{
+    void set_file_type(const struct stat& file_stat, oslFileStatus* pStat)
+    {
+        /* links to directories state also to be a directory */
+       if (S_ISLNK(file_stat.st_mode))
+           pStat->eType = osl_File_Type_Link;
+       else if (S_ISDIR(file_stat.st_mode))
+           pStat->eType = osl_File_Type_Directory;
+       else if (S_ISREG(file_stat.st_mode))
+           pStat->eType = osl_File_Type_Regular;
+       else if (S_ISFIFO(file_stat.st_mode))
+           pStat->eType = osl_File_Type_Fifo;
+       else if (S_ISSOCK(file_stat.st_mode))
+           pStat->eType = osl_File_Type_Socket;
+       else if (S_ISCHR(file_stat.st_mode) || S_ISBLK(file_stat.st_mode))
+           pStat->eType = osl_File_Type_Special;
+       else
+           pStat->eType = osl_File_Type_Unknown;
+
+       pStat->uValidFields |= osl_FileStatus_Mask_Type;
+    }
+
+    void set_file_access_mask(const struct stat& file_stat, oslFileStatus* pStat)
+    {
+        // user permissions
+        if (S_IRUSR & file_stat.st_mode)
+            pStat->uAttributes |= osl_File_Attribute_OwnRead;
+
+        if (S_IWUSR & file_stat.st_mode)
+            pStat->uAttributes |= osl_File_Attribute_OwnWrite;
+
+        if (S_IXUSR & file_stat.st_mode)
+            pStat->uAttributes |= osl_File_Attribute_OwnExe;
+
+        // group permissions
+        if (S_IRGRP & file_stat.st_mode)
+            pStat->uAttributes |= osl_File_Attribute_GrpRead;
+
+        if (S_IWGRP & file_stat.st_mode)
+            pStat->uAttributes |= osl_File_Attribute_GrpWrite;
+
+        if (S_IXGRP & file_stat.st_mode)
+            pStat->uAttributes |= osl_File_Attribute_GrpExe;
+
+        // others permissions
+        if (S_IROTH & file_stat.st_mode)
+            pStat->uAttributes |= osl_File_Attribute_OthRead;
+
+        if (S_IWOTH & file_stat.st_mode)
+            pStat->uAttributes |= osl_File_Attribute_OthWrite;
+
+        if (S_IXOTH & file_stat.st_mode)
+            pStat->uAttributes |= osl_File_Attribute_OthExe;
+
+        pStat->uValidFields |= osl_FileStatus_Mask_Attributes;
+    }
+
+    /* This code used not to use access(...) because access follows links which
+       may cause performance problems see #97133.  (That apparently references a
+       no-longer accessible Hamburg-internal bug-tracking system.)
+       However, contrary to what is stated above the use of access calls is
+       required on network file systems not using unix semantics (AFS, see
+       fdo#43095).
+    */
+    void set_file_access_rights(const OString& file_path, oslFileStatus* pStat)
+    {
+        pStat->uValidFields |= osl_FileStatus_Mask_Attributes;
+
+        if (osl::access(file_path, W_OK) < 0)
+            pStat->uAttributes |= osl_File_Attribute_ReadOnly;
+
+        if (osl::access(file_path, X_OK) == 0)
+            pStat->uAttributes |= osl_File_Attribute_Executable;
+    }
+
+    void set_file_hidden_status(const OString& file_path, oslFileStatus* pStat)
+    {
+        pStat->uAttributes   = osl::systemPathIsHiddenFileOrDirectoryEntry(file_path) ? osl_File_Attribute_Hidden : 0;
+        pStat->uValidFields |= osl_FileStatus_Mask_Attributes;
+    }
+
+    /* the set_file_access_rights must be called after set_file_hidden_status(...) and
+       set_file_access_mask(...) because of the hack in set_file_access_rights(...) */
+    void set_file_attributes(
+        const OString& file_path, const struct stat& file_stat, const sal_uInt32 uFieldMask, oslFileStatus* pStat)
+    {
+        set_file_hidden_status(file_path, pStat);
+        set_file_access_mask(file_stat, pStat);
+
+        // we set the file access rights only on demand
+        // because it's potentially expensive
+        if (uFieldMask & osl_FileStatus_Mask_Attributes)
+            set_file_access_rights(file_path, pStat);
+    }
+
+    void set_file_access_time(const struct stat& file_stat, oslFileStatus* pStat)
+    {
+        pStat->aAccessTime.Seconds  = file_stat.st_atime;
+        pStat->aAccessTime.Nanosec  = 0;
+        pStat->uValidFields        |= osl_FileStatus_Mask_AccessTime;
+    }
+
+    void set_file_modify_time(const struct stat& file_stat, oslFileStatus* pStat)
+    {
+        pStat->aModifyTime.Seconds  = file_stat.st_mtime;
+        pStat->aModifyTime.Nanosec  = 0;
+        pStat->uValidFields        |= osl_FileStatus_Mask_ModifyTime;
+    }
+
+    void set_file_size(const struct stat& file_stat, oslFileStatus* pStat)
+    {
+        if (S_ISREG(file_stat.st_mode))
+        {
+            pStat->uFileSize     = file_stat.st_size;
+            pStat->uValidFields |= osl_FileStatus_Mask_FileSize;
+        }
+    }
+
+    /* we only need to call stat or lstat if one of the
+       following flags is set */
+    bool is_stat_call_necessary(sal_uInt32 field_mask, oslFileType file_type)
+    {
+        return (
+                ((field_mask & osl_FileStatus_Mask_Type) && (file_type == osl_File_Type_Unknown)) ||
+                (field_mask & osl_FileStatus_Mask_Attributes) ||
+                (field_mask & osl_FileStatus_Mask_CreationTime) ||
+                (field_mask & osl_FileStatus_Mask_AccessTime) ||
+                (field_mask & osl_FileStatus_Mask_ModifyTime) ||
+                (field_mask & osl_FileStatus_Mask_FileSize) ||
+                (field_mask & osl_FileStatus_Mask_LinkTargetURL) ||
+                (field_mask & osl_FileStatus_Mask_Validate));
+    }
+
+    oslFileError set_link_target_url(const OString& file_path, oslFileStatus* pStat)
+    {
+        OString link_target;
+        if (!osl::realpath(file_path, link_target))
+            return oslTranslateFileError(errno);
+
+        OUString url;
+        oslFileError osl_error = osl::detail::convertPathnameToUrl(link_target, &url);
+        if (osl_error != osl_File_E_None)
+            return osl_error;
+        rtl_uString_assign(&pStat->ustrLinkTargetURL, url.pData);
+
+        pStat->uValidFields |= osl_FileStatus_Mask_LinkTargetURL;
+        return osl_File_E_None;
+    }
+
+    oslFileError setup_osl_getFileStatus(
+        DirectoryItem_Impl * pImpl, oslFileStatus* pStat, OString& file_path)
+    {
+        if ((pImpl == nullptr) || (pStat == nullptr))
+            return osl_File_E_INVAL;
+
+        file_path = pImpl->m_strFilePath;
+        OSL_ASSERT(!file_path.isEmpty());
+        if (file_path.isEmpty())
+            return osl_File_E_INVAL;
+
+        pStat->uValidFields = 0;
+        return osl_File_E_None;
+    }
+
+}
+
+oslFileError SAL_CALL osl_getFileStatus(oslDirectoryItem Item, oslFileStatus* pStat, sal_uInt32 uFieldMask)
+{
+    DirectoryItem_Impl * pImpl = static_cast< DirectoryItem_Impl* >(Item);
+
+    OString file_path;
+    oslFileError  osl_error = setup_osl_getFileStatus(pImpl, pStat, file_path);
+    if (osl_error != osl_File_E_None)
+        return osl_error;
+
+    struct stat file_stat;
+
+    bool bStatNeeded = is_stat_call_necessary(uFieldMask, pImpl->getFileType());
+    if (bStatNeeded && (osl::lstat(file_path, file_stat) != 0))
+        return oslTranslateFileError(errno);
+
+    if (bStatNeeded)
+    {
+        // we set all these attributes because it's cheap
+        set_file_type(file_stat, pStat);
+        set_file_access_time(file_stat, pStat);
+        set_file_modify_time(file_stat, pStat);
+        set_file_size(file_stat, pStat);
+        set_file_attributes(file_path, file_stat, uFieldMask, pStat);
+
+        // file exists semantic of osl_FileStatus_Mask_Validate
+        if ((uFieldMask & osl_FileStatus_Mask_LinkTargetURL) && S_ISLNK(file_stat.st_mode))
+        {
+            osl_error = set_link_target_url(file_path, pStat);
+            if (osl_error != osl_File_E_None)
+                return osl_error;
+        }
+    }
+#ifdef _DIRENT_HAVE_D_TYPE
+    else if (uFieldMask & osl_FileStatus_Mask_Type)
+    {
+        pStat->eType = pImpl->getFileType();
+        pStat->uValidFields |= osl_FileStatus_Mask_Type;
+    }
+#endif /* _DIRENT_HAVE_D_TYPE */
+
+    if (uFieldMask & osl_FileStatus_Mask_FileURL)
+    {
+        OUString url;
+        if ((osl_error = osl::detail::convertPathnameToUrl(file_path, &url)) != osl_File_E_None)
+            return osl_error;
+        rtl_uString_assign(&pStat->ustrFileURL, url.pData);
+
+        pStat->uValidFields |= osl_FileStatus_Mask_FileURL;
+    }
+
+    if (uFieldMask & osl_FileStatus_Mask_FileName)
+    {
+        OString name;
+        osl_systemPathGetFileNameOrLastDirectoryPart(file_path.pData, &name.pData);
+        bool ok = rtl_convertStringToUString(
+            &pStat->ustrFileName, name.getStr(), name.getLength(), osl_getThreadTextEncoding(),
+            (RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_DEFAULT | RTL_TEXTTOUNICODE_FLAGS_MBUNDEFINED_DEFAULT
+             | RTL_TEXTTOUNICODE_FLAGS_INVALID_DEFAULT));
+        assert(ok); (void)ok;
+        pStat->uValidFields |= osl_FileStatus_Mask_FileName;
+    }
+    return osl_File_E_None;
+}
+
+static oslFileError osl_psz_setFileAttributes( const char* pszFilePath, sal_uInt64 uAttributes )
+{
+    oslFileError osl_error = osl_File_E_None;
+    mode_t       nNewMode  = 0;
+
+    OSL_ENSURE(!(osl_File_Attribute_Hidden & uAttributes), "osl_File_Attribute_Hidden doesn't work under Unix");
+
+    if (uAttributes & osl_File_Attribute_OwnRead)
+        nNewMode |= S_IRUSR;
+
+    if (uAttributes & osl_File_Attribute_OwnWrite)
+        nNewMode|=S_IWUSR;
+
+    if  (uAttributes & osl_File_Attribute_OwnExe)
+        nNewMode|=S_IXUSR;
+
+    if (uAttributes & osl_File_Attribute_GrpRead)
+        nNewMode|=S_IRGRP;
+
+    if (uAttributes & osl_File_Attribute_GrpWrite)
+        nNewMode|=S_IWGRP;
+
+    if (uAttributes & osl_File_Attribute_GrpExe)
+        nNewMode|=S_IXGRP;
+
+    if (uAttributes & osl_File_Attribute_OthRead)
+        nNewMode|=S_IROTH;
+
+    if (uAttributes & osl_File_Attribute_OthWrite)
+        nNewMode|=S_IWOTH;
+
+    if (uAttributes & osl_File_Attribute_OthExe)
+        nNewMode|=S_IXOTH;
+
+    if (chmod(pszFilePath, nNewMode) < 0)
+        osl_error = oslTranslateFileError(errno);
+
+    return osl_error;
+}
+
+oslFileError SAL_CALL osl_setFileAttributes( rtl_uString* ustrFileURL, sal_uInt64 uAttributes )
+{
+    char path[PATH_MAX];
+    oslFileError eRet;
+
+    OSL_ASSERT( ustrFileURL );
+
+    /* convert file url to system path */
+    eRet = FileURLToPath( path, PATH_MAX, ustrFileURL );
+    if( eRet != osl_File_E_None )
+        return eRet;
+
+#ifdef MACOSX
+    if ( macxp_resolveAlias( path, PATH_MAX ) != 0 )
+      return oslTranslateFileError( errno );
+#endif/* MACOSX */
+
+    return osl_psz_setFileAttributes( path, uAttributes );
+}
+
+static oslFileError osl_psz_setFileTime (
+    const char* pszFilePath,
+    const TimeValue* pLastAccessTime,
+    const TimeValue* pLastWriteTime )
+{
+    int nRet=0;
+    struct utimbuf aTimeBuffer;
+    struct stat aFileStat;
+#ifdef DEBUG_OSL_FILE
+    struct tm* pTM=0;
+#endif
+
+    nRet = lstat_c(pszFilePath,&aFileStat);
+
+    if ( nRet < 0 )
+    {
+        nRet=errno;
+        return oslTranslateFileError(nRet);
+    }
+
+#ifdef DEBUG_OSL_FILE
+    fprintf(stderr,"File Times are (in localtime):\n");
+    pTM=localtime(&aFileStat.st_ctime);
+    fprintf(stderr,"CreationTime is '%s'\n",asctime(pTM));
+    pTM=localtime(&aFileStat.st_atime);
+    fprintf(stderr,"AccessTime   is '%s'\n",asctime(pTM));
+    pTM=localtime(&aFileStat.st_mtime);
+    fprintf(stderr,"Modification is '%s'\n",asctime(pTM));
+
+    fprintf(stderr,"File Times are (in UTC):\n");
+    fprintf(stderr,"CreationTime is '%s'\n",ctime(&aFileStat.st_ctime));
+    fprintf(stderr,"AccessTime   is '%s'\n",ctime(&aTimeBuffer.actime));
+    fprintf(stderr,"Modification is '%s'\n",ctime(&aTimeBuffer.modtime));
+#endif
+
+    if ( pLastAccessTime != nullptr )
+    {
+        aTimeBuffer.actime=pLastAccessTime->Seconds;
+    }
+    else
+    {
+        aTimeBuffer.actime=aFileStat.st_atime;
+    }
+
+    if ( pLastWriteTime != nullptr )
+    {
+        aTimeBuffer.modtime=pLastWriteTime->Seconds;
+    }
+    else
+    {
+        aTimeBuffer.modtime=aFileStat.st_mtime;
+    }
+
+    /* mfe: Creation time not used here! */
+
+#ifdef DEBUG_OSL_FILE
+    fprintf(stderr,"File Times are (in localtime):\n");
+    pTM=localtime(&aFileStat.st_ctime);
+    fprintf(stderr,"CreationTime now '%s'\n",asctime(pTM));
+    pTM=localtime(&aTimeBuffer.actime);
+    fprintf(stderr,"AccessTime   now '%s'\n",asctime(pTM));
+    pTM=localtime(&aTimeBuffer.modtime);
+    fprintf(stderr,"Modification now '%s'\n",asctime(pTM));
+
+    fprintf(stderr,"File Times are (in UTC):\n");
+    fprintf(stderr,"CreationTime now '%s'\n",ctime(&aFileStat.st_ctime));
+    fprintf(stderr,"AccessTime   now '%s'\n",ctime(&aTimeBuffer.actime));
+    fprintf(stderr,"Modification now '%s'\n",ctime(&aTimeBuffer.modtime));
+#endif
+
+    nRet = utime_c(pszFilePath,&aTimeBuffer);
+    if ( nRet < 0 )
+    {
+        nRet=errno;
+        return oslTranslateFileError(nRet);
+    }
+
+    return osl_File_E_None;
+}
+
+oslFileError SAL_CALL osl_setFileTime (
+    rtl_uString* ustrFileURL,
+    SAL_UNUSED_PARAMETER const TimeValue* /* pCreationTime */,
+    const TimeValue* pLastAccessTime,
+    const TimeValue* pLastWriteTime )
+{
+    char path[PATH_MAX];
+    oslFileError eRet;
+
+    OSL_ASSERT( ustrFileURL );
+
+    /* convert file url to system path */
+    eRet = FileURLToPath( path, PATH_MAX, ustrFileURL );
+    if( eRet != osl_File_E_None )
+        return eRet;
+
+#ifdef MACOSX
+    if ( macxp_resolveAlias( path, PATH_MAX ) != 0 )
+      return oslTranslateFileError( errno );
+#endif/* MACOSX */
+
+    return osl_psz_setFileTime( path, pLastAccessTime, pLastWriteTime );
+}
+
+sal_Bool
+SAL_CALL osl_identicalDirectoryItem( oslDirectoryItem a, oslDirectoryItem b)
+{
+    DirectoryItem_Impl *pA = static_cast<DirectoryItem_Impl *>(a);
+    DirectoryItem_Impl *pB = static_cast<DirectoryItem_Impl *>(b);
+    if (a == b)
+        return true;
+    /* same name => same item, unless renaming / moving madness has occurred */
+    if (pA->m_strFilePath == pB->m_strFilePath)
+        return true;
+
+    struct stat a_stat, b_stat;
+
+    if (osl::lstat(pA->m_strFilePath, a_stat) != 0 ||
+        osl::lstat(pB->m_strFilePath, b_stat) != 0)
+        return false;
+
+    return (a_stat.st_ino == b_stat.st_ino);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */