From f19f813537c7aea1c20749c914e756b54a9c3cf5 Mon Sep 17 00:00:00 2001
From: Igor Pavlov <87184205+ip7z@users.noreply.github.com>
Date: Mon, 27 Dec 2021 00:00:00 +0000
Subject: '21.07'
---
CPP/Windows/FileDir.cpp | 1129 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 1129 insertions(+)
create mode 100644 CPP/Windows/FileDir.cpp
(limited to 'CPP/Windows/FileDir.cpp')
diff --git a/CPP/Windows/FileDir.cpp b/CPP/Windows/FileDir.cpp
new file mode 100644
index 0000000..8a33fc8
--- /dev/null
+++ b/CPP/Windows/FileDir.cpp
@@ -0,0 +1,1129 @@
+// Windows/FileDir.cpp
+
+#include "StdAfx.h"
+
+
+#ifndef _WIN32
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <limits.h>
+#include <unistd.h>
+#include <time.h>
+#include <utime.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include "../Common/StringConvert.h"
+#include "../Common/C_FileIO.h"
+#include "TimeUtils.h"
+#endif
+
+#include "FileDir.h"
+#include "FileFind.h"
+#include "FileName.h"
+
+#ifndef _UNICODE
+extern bool g_IsNT;
+#endif
+
+using namespace NWindows;
+using namespace NFile;
+using namespace NName;
+
+namespace NWindows {
+namespace NFile {
+namespace NDir {
+
+#ifdef _WIN32
+
+#ifndef UNDER_CE
+
+bool GetWindowsDir(FString &path)
+{
+ UINT needLength;
+ #ifndef _UNICODE
+ if (!g_IsNT)
+ {
+ TCHAR s[MAX_PATH + 2];
+ s[0] = 0;
+ needLength = ::GetWindowsDirectory(s, MAX_PATH + 1);
+ path = fas2fs(s);
+ }
+ else
+ #endif
+ {
+ WCHAR s[MAX_PATH + 2];
+ s[0] = 0;
+ needLength = ::GetWindowsDirectoryW(s, MAX_PATH + 1);
+ path = us2fs(s);
+ }
+ return (needLength > 0 && needLength <= MAX_PATH);
+}
+
+bool GetSystemDir(FString &path)
+{
+ UINT needLength;
+ #ifndef _UNICODE
+ if (!g_IsNT)
+ {
+ TCHAR s[MAX_PATH + 2];
+ s[0] = 0;
+ needLength = ::GetSystemDirectory(s, MAX_PATH + 1);
+ path = fas2fs(s);
+ }
+ else
+ #endif
+ {
+ WCHAR s[MAX_PATH + 2];
+ s[0] = 0;
+ needLength = ::GetSystemDirectoryW(s, MAX_PATH + 1);
+ path = us2fs(s);
+ }
+ return (needLength > 0 && needLength <= MAX_PATH);
+}
+#endif // UNDER_CE
+
+
+bool SetDirTime(CFSTR path, const FILETIME *cTime, const FILETIME *aTime, const FILETIME *mTime)
+{
+ #ifndef _UNICODE
+ if (!g_IsNT)
+ {
+ ::SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+ return false;
+ }
+ #endif
+
+ HANDLE hDir = INVALID_HANDLE_VALUE;
+ IF_USE_MAIN_PATH
+ hDir = ::CreateFileW(fs2us(path), GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,
+ NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
+ #ifdef WIN_LONG_PATH
+ if (hDir == INVALID_HANDLE_VALUE && USE_SUPER_PATH)
+ {
+ UString superPath;
+ if (GetSuperPath(path, superPath, USE_MAIN_PATH))
+ hDir = ::CreateFileW(superPath, GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,
+ NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
+ }
+ #endif
+
+ bool res = false;
+ if (hDir != INVALID_HANDLE_VALUE)
+ {
+ res = BOOLToBool(::SetFileTime(hDir, cTime, aTime, mTime));
+ ::CloseHandle(hDir);
+ }
+ return res;
+}
+
+
+
+bool SetFileAttrib(CFSTR path, DWORD attrib)
+{
+ #ifndef _UNICODE
+ if (!g_IsNT)
+ {
+ if (::SetFileAttributes(fs2fas(path), attrib))
+ return true;
+ }
+ else
+ #endif
+ {
+ IF_USE_MAIN_PATH
+ if (::SetFileAttributesW(fs2us(path), attrib))
+ return true;
+ #ifdef WIN_LONG_PATH
+ if (USE_SUPER_PATH)
+ {
+ UString superPath;
+ if (GetSuperPath(path, superPath, USE_MAIN_PATH))
+ return BOOLToBool(::SetFileAttributesW(superPath, attrib));
+ }
+ #endif
+ }
+ return false;
+}
+
+
+bool SetFileAttrib_PosixHighDetect(CFSTR path, DWORD attrib)
+{
+ #ifdef _WIN32
+ if ((attrib & 0xF0000000) != 0)
+ attrib &= 0x3FFF;
+ #endif
+ return SetFileAttrib(path, attrib);
+}
+
+
+bool RemoveDir(CFSTR path)
+{
+ #ifndef _UNICODE
+ if (!g_IsNT)
+ {
+ if (::RemoveDirectory(fs2fas(path)))
+ return true;
+ }
+ else
+ #endif
+ {
+ IF_USE_MAIN_PATH
+ if (::RemoveDirectoryW(fs2us(path)))
+ return true;
+ #ifdef WIN_LONG_PATH
+ if (USE_SUPER_PATH)
+ {
+ UString superPath;
+ if (GetSuperPath(path, superPath, USE_MAIN_PATH))
+ return BOOLToBool(::RemoveDirectoryW(superPath));
+ }
+ #endif
+ }
+ return false;
+}
+
+
+bool MyMoveFile(CFSTR oldFile, CFSTR newFile)
+{
+ #ifndef _UNICODE
+ if (!g_IsNT)
+ {
+ if (::MoveFile(fs2fas(oldFile), fs2fas(newFile)))
+ return true;
+ }
+ else
+ #endif
+ {
+ IF_USE_MAIN_PATH_2(oldFile, newFile)
+ {
+ if (::MoveFileW(fs2us(oldFile), fs2us(newFile)))
+ return true;
+ }
+ #ifdef WIN_LONG_PATH
+ if (USE_SUPER_PATH_2)
+ {
+ UString d1, d2;
+ if (GetSuperPaths(oldFile, newFile, d1, d2, USE_MAIN_PATH_2))
+ return BOOLToBool(::MoveFileW(d1, d2));
+ }
+ #endif
+ }
+ return false;
+}
+
+#ifndef UNDER_CE
+EXTERN_C_BEGIN
+typedef BOOL (WINAPI *Func_CreateHardLinkW)(
+ LPCWSTR lpFileName,
+ LPCWSTR lpExistingFileName,
+ LPSECURITY_ATTRIBUTES lpSecurityAttributes
+ );
+EXTERN_C_END
+#endif // UNDER_CE
+
+bool MyCreateHardLink(CFSTR newFileName, CFSTR existFileName)
+{
+ #ifndef _UNICODE
+ if (!g_IsNT)
+ {
+ SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+ return false;
+ /*
+ if (::CreateHardLink(fs2fas(newFileName), fs2fas(existFileName), NULL))
+ return true;
+ */
+ }
+ else
+ #endif
+ {
+ Func_CreateHardLinkW my_CreateHardLinkW = (Func_CreateHardLinkW)
+ (void *)::GetProcAddress(::GetModuleHandleW(L"kernel32.dll"), "CreateHardLinkW");
+ if (!my_CreateHardLinkW)
+ return false;
+ IF_USE_MAIN_PATH_2(newFileName, existFileName)
+ {
+ if (my_CreateHardLinkW(fs2us(newFileName), fs2us(existFileName), NULL))
+ return true;
+ }
+ #ifdef WIN_LONG_PATH
+ if (USE_SUPER_PATH_2)
+ {
+ UString d1, d2;
+ if (GetSuperPaths(newFileName, existFileName, d1, d2, USE_MAIN_PATH_2))
+ return BOOLToBool(my_CreateHardLinkW(d1, d2, NULL));
+ }
+ #endif
+ }
+ return false;
+}
+
+
+/*
+WinXP-64 CreateDir():
+ "" - ERROR_PATH_NOT_FOUND
+ \ - ERROR_ACCESS_DENIED
+ C:\ - ERROR_ACCESS_DENIED, if there is such drive,
+
+ D:\folder - ERROR_PATH_NOT_FOUND, if there is no such drive,
+ C:\nonExistent\folder - ERROR_PATH_NOT_FOUND
+
+ C:\existFolder - ERROR_ALREADY_EXISTS
+ C:\existFolder\ - ERROR_ALREADY_EXISTS
+
+ C:\folder - OK
+ C:\folder\ - OK
+
+ \\Server\nonExistent - ERROR_BAD_NETPATH
+ \\Server\Share_Readonly - ERROR_ACCESS_DENIED
+ \\Server\Share - ERROR_ALREADY_EXISTS
+
+ \\Server\Share_NTFS_drive - ERROR_ACCESS_DENIED
+ \\Server\Share_FAT_drive - ERROR_ALREADY_EXISTS
+*/
+
+bool CreateDir(CFSTR path)
+{
+ #ifndef _UNICODE
+ if (!g_IsNT)
+ {
+ if (::CreateDirectory(fs2fas(path), NULL))
+ return true;
+ }
+ else
+ #endif
+ {
+ IF_USE_MAIN_PATH
+ if (::CreateDirectoryW(fs2us(path), NULL))
+ return true;
+ #ifdef WIN_LONG_PATH
+ if ((!USE_MAIN_PATH || ::GetLastError() != ERROR_ALREADY_EXISTS) && USE_SUPER_PATH)
+ {
+ UString superPath;
+ if (GetSuperPath(path, superPath, USE_MAIN_PATH))
+ return BOOLToBool(::CreateDirectoryW(superPath, NULL));
+ }
+ #endif
+ }
+ return false;
+}
+
+/*
+ CreateDir2 returns true, if directory can contain files after the call (two cases):
+ 1) the directory already exists
+ 2) the directory was created
+ path must be WITHOUT trailing path separator.
+
+ We need CreateDir2, since fileInfo.Find() for reserved names like "com8"
+ returns FILE instead of DIRECTORY. And we need to use SuperPath */
+
+static bool CreateDir2(CFSTR path)
+{
+ #ifndef _UNICODE
+ if (!g_IsNT)
+ {
+ if (::CreateDirectory(fs2fas(path), NULL))
+ return true;
+ }
+ else
+ #endif
+ {
+ IF_USE_MAIN_PATH
+ if (::CreateDirectoryW(fs2us(path), NULL))
+ return true;
+ #ifdef WIN_LONG_PATH
+ if ((!USE_MAIN_PATH || ::GetLastError() != ERROR_ALREADY_EXISTS) && USE_SUPER_PATH)
+ {
+ UString superPath;
+ if (GetSuperPath(path, superPath, USE_MAIN_PATH))
+ {
+ if (::CreateDirectoryW(superPath, NULL))
+ return true;
+ if (::GetLastError() != ERROR_ALREADY_EXISTS)
+ return false;
+ NFind::CFileInfo fi;
+ if (!fi.Find(us2fs(superPath)))
+ return false;
+ return fi.IsDir();
+ }
+ }
+ #endif
+ }
+ if (::GetLastError() != ERROR_ALREADY_EXISTS)
+ return false;
+ NFind::CFileInfo fi;
+ if (!fi.Find(path))
+ return false;
+ return fi.IsDir();
+}
+
+#endif // _WIN32
+
+static bool CreateDir2(CFSTR path);
+
+bool CreateComplexDir(CFSTR _path)
+{
+ #ifdef _WIN32
+
+ {
+ DWORD attrib = NFind::GetFileAttrib(_path);
+ if (attrib != INVALID_FILE_ATTRIBUTES && (attrib & FILE_ATTRIBUTE_DIRECTORY) != 0)
+ return true;
+ }
+
+ #ifndef UNDER_CE
+
+ if (IsDriveRootPath_SuperAllowed(_path))
+ return false;
+
+ const unsigned prefixSize = GetRootPrefixSize(_path);
+
+ #endif // UNDER_CE
+
+ #else // _WIN32
+
+ // Posix
+ NFind::CFileInfo fi;
+ if (fi.Find(_path))
+ {
+ if (fi.IsDir())
+ return true;
+ }
+
+ #endif // _WIN32
+
+ FString path (_path);
+
+ int pos = path.ReverseFind_PathSepar();
+ if (pos >= 0 && (unsigned)pos == path.Len() - 1)
+ {
+ if (path.Len() == 1)
+ return true;
+ path.DeleteBack();
+ }
+
+ const FString path2 (path);
+ pos = (int)path.Len();
+
+ for (;;)
+ {
+ if (CreateDir2(path))
+ break;
+ if (::GetLastError() == ERROR_ALREADY_EXISTS)
+ return false;
+ pos = path.ReverseFind_PathSepar();
+ if (pos < 0 || pos == 0)
+ return false;
+
+ #if defined(_WIN32) && !defined(UNDER_CE)
+ if (pos == 1 && IS_PATH_SEPAR(path[0]))
+ return false;
+ if (prefixSize >= (unsigned)pos + 1)
+ return false;
+ #endif
+
+ path.DeleteFrom((unsigned)pos);
+ }
+
+ while (pos < (int)path2.Len())
+ {
+ int pos2 = NName::FindSepar(path2.Ptr((unsigned)pos + 1));
+ if (pos2 < 0)
+ pos = (int)path2.Len();
+ else
+ pos += 1 + pos2;
+ path.SetFrom(path2, (unsigned)pos);
+ if (!CreateDir(path))
+ return false;
+ }
+
+ return true;
+}
+
+
+#ifdef _WIN32
+
+bool DeleteFileAlways(CFSTR path)
+{
+ /* If alt stream, we also need to clear READ-ONLY attribute of main file before delete.
+ SetFileAttrib("name:stream", ) changes attributes of main file. */
+ {
+ DWORD attrib = NFind::GetFileAttrib(path);
+ if (attrib != INVALID_FILE_ATTRIBUTES
+ && (attrib & FILE_ATTRIBUTE_DIRECTORY) == 0
+ && (attrib & FILE_ATTRIBUTE_READONLY) != 0)
+ {
+ if (!SetFileAttrib(path, attrib & ~(DWORD)FILE_ATTRIBUTE_READONLY))
+ return false;
+ }
+ }
+
+ #ifndef _UNICODE
+ if (!g_IsNT)
+ {
+ if (::DeleteFile(fs2fas(path)))
+ return true;
+ }
+ else
+ #endif
+ {
+ /* DeleteFile("name::$DATA") deletes all alt streams (same as delete DeleteFile("name")).
+ Maybe it's better to open "name::$DATA" and clear data for unnamed stream? */
+ IF_USE_MAIN_PATH
+ if (::DeleteFileW(fs2us(path)))
+ return true;
+ #ifdef WIN_LONG_PATH
+ if (USE_SUPER_PATH)
+ {
+ UString superPath;
+ if (GetSuperPath(path, superPath, USE_MAIN_PATH))
+ return BOOLToBool(::DeleteFileW(superPath));
+ }
+ #endif
+ }
+ return false;
+}
+
+
+
+bool RemoveDirWithSubItems(const FString &path)
+{
+ bool needRemoveSubItems = true;
+ {
+ NFind::CFileInfo fi;
+ if (!fi.Find(path))
+ return false;
+ if (!fi.IsDir())
+ {
+ ::SetLastError(ERROR_DIRECTORY);
+ return false;
+ }
+ if (fi.HasReparsePoint())
+ needRemoveSubItems = false;
+ }
+
+ if (needRemoveSubItems)
+ {
+ FString s (path);
+ s.Add_PathSepar();
+ const unsigned prefixSize = s.Len();
+ NFind::CEnumerator enumerator;
+ enumerator.SetDirPrefix(s);
+ NFind::CDirEntry fi;
+ bool isError = false;
+ DWORD lastError = 0;
+ while (enumerator.Next(fi))
+ {
+ s.DeleteFrom(prefixSize);
+ s += fi.Name;
+ if (fi.IsDir())
+ {
+ if (!RemoveDirWithSubItems(s))
+ {
+ lastError = GetLastError();
+ isError = true;
+ }
+ }
+ else if (!DeleteFileAlways(s))
+ {
+ lastError = GetLastError();
+ isError = false;
+ }
+ }
+ if (isError)
+ {
+ SetLastError(lastError);
+ return false;
+ }
+ }
+
+ // we clear read-only attrib to remove read-only dir
+ if (!SetFileAttrib(path, 0))
+ return false;
+ return RemoveDir(path);
+}
+
+#endif // _WIN32
+
+#ifdef UNDER_CE
+
+bool MyGetFullPathName(CFSTR path, FString &resFullPath)
+{
+ resFullPath = path;
+ return true;
+}
+
+#else
+
+bool MyGetFullPathName(CFSTR path, FString &resFullPath)
+{
+ return GetFullPath(path, resFullPath);
+}
+
+#ifdef _WIN32
+
+bool SetCurrentDir(CFSTR path)
+{
+ // SetCurrentDirectory doesn't support \\?\ prefix
+ #ifndef _UNICODE
+ if (!g_IsNT)
+ {
+ return BOOLToBool(::SetCurrentDirectory(fs2fas(path)));
+ }
+ else
+ #endif
+ {
+ return BOOLToBool(::SetCurrentDirectoryW(fs2us(path)));
+ }
+}
+
+
+bool GetCurrentDir(FString &path)
+{
+ path.Empty();
+
+ DWORD needLength;
+ #ifndef _UNICODE
+ if (!g_IsNT)
+ {
+ TCHAR s[MAX_PATH + 2];
+ s[0] = 0;
+ needLength = ::GetCurrentDirectory(MAX_PATH + 1, s);
+ path = fas2fs(s);
+ }
+ else
+ #endif
+ {
+ WCHAR s[MAX_PATH + 2];
+ s[0] = 0;
+ needLength = ::GetCurrentDirectoryW(MAX_PATH + 1, s);
+ path = us2fs(s);
+ }
+ return (needLength > 0 && needLength <= MAX_PATH);
+}
+
+#endif // _WIN32
+#endif // UNDER_CE
+
+
+bool GetFullPathAndSplit(CFSTR path, FString &resDirPrefix, FString &resFileName)
+{
+ bool res = MyGetFullPathName(path, resDirPrefix);
+ if (!res)
+ resDirPrefix = path;
+ int pos = resDirPrefix.ReverseFind_PathSepar();
+ pos++;
+ resFileName = resDirPrefix.Ptr((unsigned)pos);
+ resDirPrefix.DeleteFrom((unsigned)pos);
+ return res;
+}
+
+bool GetOnlyDirPrefix(CFSTR path, FString &resDirPrefix)
+{
+ FString resFileName;
+ return GetFullPathAndSplit(path, resDirPrefix, resFileName);
+}
+
+bool MyGetTempPath(FString &path)
+{
+ #ifdef _WIN32
+ path.Empty();
+ DWORD needLength;
+ #ifndef _UNICODE
+ if (!g_IsNT)
+ {
+ TCHAR s[MAX_PATH + 2];
+ s[0] = 0;
+ needLength = ::GetTempPath(MAX_PATH + 1, s);
+ path = fas2fs(s);
+ }
+ else
+ #endif
+ {
+ WCHAR s[MAX_PATH + 2];
+ s[0] = 0;
+ needLength = ::GetTempPathW(MAX_PATH + 1, s);;
+ path = us2fs(s);
+ }
+ return (needLength > 0 && needLength <= MAX_PATH);
+
+ #else
+
+ // FIXME: improve that code
+ path = "/tmp/";
+ if (!NFind::DoesDirExist_FollowLink(path))
+ path = "./";
+ return true;
+ #endif
+}
+
+
+static bool CreateTempFile(CFSTR prefix, bool addRandom, FString &path, NIO::COutFile *outFile)
+{
+ UInt32 d =
+ #ifdef _WIN32
+ (GetTickCount() << 12) ^ (GetCurrentThreadId() << 14) ^ GetCurrentProcessId();
+ #else
+ (UInt32)(time(NULL) << 12) ^ ((UInt32)getppid() << 14) ^ (UInt32)(getpid());
+ #endif
+
+ for (unsigned i = 0; i < 100; i++)
+ {
+ path = prefix;
+ if (addRandom)
+ {
+ char s[16];
+ UInt32 val = d;
+ unsigned k;
+ for (k = 0; k < 8; k++)
+ {
+ unsigned t = val & 0xF;
+ val >>= 4;
+ s[k] = (char)((t < 10) ? ('0' + t) : ('A' + (t - 10)));
+ }
+ s[k] = '\0';
+ if (outFile)
+ path += '.';
+ path += s;
+ UInt32 step = GetTickCount() + 2;
+ if (step == 0)
+ step = 1;
+ d += step;
+ }
+ addRandom = true;
+ if (outFile)
+ path += ".tmp";
+ if (NFind::DoesFileOrDirExist(path))
+ {
+ SetLastError(ERROR_ALREADY_EXISTS);
+ continue;
+ }
+ if (outFile)
+ {
+ if (outFile->Create(path, false))
+ return true;
+ }
+ else
+ {
+ if (CreateDir(path))
+ return true;
+ }
+ DWORD error = GetLastError();
+ if (error != ERROR_FILE_EXISTS &&
+ error != ERROR_ALREADY_EXISTS)
+ break;
+ }
+ path.Empty();
+ return false;
+}
+
+bool CTempFile::Create(CFSTR prefix, NIO::COutFile *outFile)
+{
+ if (!Remove())
+ return false;
+ if (!CreateTempFile(prefix, false, _path, outFile))
+ return false;
+ _mustBeDeleted = true;
+ return true;
+}
+
+bool CTempFile::CreateRandomInTempFolder(CFSTR namePrefix, NIO::COutFile *outFile)
+{
+ if (!Remove())
+ return false;
+ FString tempPath;
+ if (!MyGetTempPath(tempPath))
+ return false;
+ if (!CreateTempFile(tempPath + namePrefix, true, _path, outFile))
+ return false;
+ _mustBeDeleted = true;
+ return true;
+}
+
+bool CTempFile::Remove()
+{
+ if (!_mustBeDeleted)
+ return true;
+ _mustBeDeleted = !DeleteFileAlways(_path);
+ return !_mustBeDeleted;
+}
+
+bool CTempFile::MoveTo(CFSTR name, bool deleteDestBefore)
+{
+ // DWORD attrib = 0;
+ if (deleteDestBefore)
+ {
+ if (NFind::DoesFileExist_Raw(name))
+ {
+ // attrib = NFind::GetFileAttrib(name);
+ if (!DeleteFileAlways(name))
+ return false;
+ }
+ }
+ DisableDeleting();
+ return MyMoveFile(_path, name);
+
+ /*
+ if (attrib != INVALID_FILE_ATTRIBUTES && (attrib & FILE_ATTRIBUTE_READONLY))
+ {
+ DWORD attrib2 = NFind::GetFileAttrib(name);
+ if (attrib2 != INVALID_FILE_ATTRIBUTES)
+ SetFileAttrib(name, attrib2 | FILE_ATTRIBUTE_READONLY);
+ }
+ */
+}
+
+#ifdef _WIN32
+bool CTempDir::Create(CFSTR prefix)
+{
+ if (!Remove())
+ return false;
+ FString tempPath;
+ if (!MyGetTempPath(tempPath))
+ return false;
+ if (!CreateTempFile(tempPath + prefix, true, _path, NULL))
+ return false;
+ _mustBeDeleted = true;
+ return true;
+}
+
+bool CTempDir::Remove()
+{
+ if (!_mustBeDeleted)
+ return true;
+ _mustBeDeleted = !RemoveDirWithSubItems(_path);
+ return !_mustBeDeleted;
+}
+#endif
+
+
+
+#ifndef _WIN32
+
+bool RemoveDir(CFSTR path)
+{
+ return (rmdir(path) == 0);
+}
+
+
+static BOOL My__CopyFile(CFSTR oldFile, CFSTR newFile)
+{
+ NWindows::NFile::NIO::COutFile outFile;
+ if (!outFile.Create(newFile, false))
+ return FALSE;
+
+ NWindows::NFile::NIO::CInFile inFile;
+ if (!inFile.Open(oldFile))
+ return FALSE;
+
+ char buf[1 << 14];
+
+ for (;;)
+ {
+ const ssize_t num = inFile.read_part(buf, sizeof(buf));
+ if (num == 0)
+ return TRUE;
+ if (num < 0)
+ return FALSE;
+ size_t processed;
+ const ssize_t num2 = outFile.write_full(buf, (size_t)num, processed);
+ if (num2 != num || processed != (size_t)num)
+ return FALSE;
+ }
+}
+
+
+bool MyMoveFile(CFSTR oldFile, CFSTR newFile)
+{
+ int res = rename(oldFile, newFile);
+ if (res == 0)
+ return true;
+ if (errno != EXDEV) // (oldFile and newFile are not on the same mounted filesystem)
+ return false;
+
+ if (My__CopyFile(oldFile, newFile) == FALSE)
+ return false;
+
+ struct stat info_file;
+ res = stat(oldFile, &info_file);
+ if (res != 0)
+ return false;
+
+ /*
+ ret = chmod(dst,info_file.st_mode & g_umask.mask);
+ */
+ return (unlink(oldFile) == 0);
+}
+
+
+bool CreateDir(CFSTR path)
+{
+ return (mkdir(path, 0777) == 0); // change it
+}
+
+static bool CreateDir2(CFSTR path)
+{
+ return (mkdir(path, 0777) == 0); // change it
+}
+
+
+bool DeleteFileAlways(CFSTR path)
+{
+ return (remove(path) == 0);
+}
+
+bool SetCurrentDir(CFSTR path)
+{
+ return (chdir(path) == 0);
+}
+
+
+bool GetCurrentDir(FString &path)
+{
+ path.Empty();
+
+ #define MY__PATH_MAX PATH_MAX
+ // #define MY__PATH_MAX 1024
+
+ char s[MY__PATH_MAX + 1];
+ char *res = getcwd(s, MY__PATH_MAX);
+ if (res)
+ {
+ path = fas2fs(s);
+ return true;
+ }
+ {
+ // if (errno != ERANGE) return false;
+ #if defined(__GLIBC__) || defined(__APPLE__)
+ /* As an extension to the POSIX.1-2001 standard, glibc's getcwd()
+ allocates the buffer dynamically using malloc(3) if buf is NULL. */
+ res = getcwd(NULL, 0);
+ if (res)
+ {
+ path = fas2fs(res);
+ ::free(res);
+ return true;
+ }
+ #endif
+ return false;
+ }
+}
+
+
+
+// #undef UTIME_OMIT // to debug
+
+#ifndef UTIME_OMIT
+ /* we can define UTIME_OMIT for debian and another systems.
+ Is it OK to define UTIME_OMIT to -2 here, if UTIME_OMIT is not defined? */
+ // #define UTIME_OMIT -2
+#endif
+
+static bool FILETME_To_timespec(const FILETIME *ft, timespec &ts)
+{
+ if (ft)
+ {
+ const Int64 sec = NTime::FileTimeToUnixTime64(*ft);
+ // time_t is long
+ const time_t sec2 = (time_t)sec;
+ if (sec2 == sec)
+ {
+ ts.tv_sec = sec2;
+ const UInt64 winTime = (((UInt64)ft->dwHighDateTime) << 32) + ft->dwLowDateTime;
+ ts.tv_nsec = (long)((winTime % 10000000) * 100);
+ return true;
+ }
+ }
+ // else
+ {
+ ts.tv_sec = 0;
+ ts.tv_nsec =
+ #ifdef UTIME_OMIT
+ UTIME_OMIT; // keep old timesptamp
+ #else
+ // UTIME_NOW; // set to the current time
+ 0;
+ #endif
+ return false;
+ }
+}
+
+
+
+
+bool SetDirTime(CFSTR path, const FILETIME *cTime, const FILETIME *aTime, const FILETIME *mTime)
+{
+ // need testing
+ /*
+ struct utimbuf buf;
+ struct stat st;
+ UNUSED_VAR(cTime)
+
+ printf("\nstat = %s\n", path);
+ int ret = stat(path, &st);
+
+ if (ret == 0)
+ {
+ buf.actime = st.st_atime;
+ buf.modtime = st.st_mtime;
+ }
+ else
+ {
+ time_t cur_time = time(0);
+ buf.actime = cur_time;
+ buf.modtime = cur_time;
+ }
+
+ if (aTime)
+ {
+ UInt32 ut;
+ if (NTime::FileTimeToUnixTime(*aTime, ut))
+ buf.actime = ut;
+ }
+
+ if (mTime)
+ {
+ UInt32 ut;
+ if (NTime::FileTimeToUnixTime(*mTime, ut))
+ buf.modtime = ut;
+ }
+
+ return utime(path, &buf) == 0;
+ */
+
+ // if (!aTime && !mTime) return true;
+
+ struct timespec times[2];
+ UNUSED_VAR(cTime)
+
+ bool needChange;
+ needChange = FILETME_To_timespec(aTime, times[0]);
+ needChange |= FILETME_To_timespec(mTime, times[1]);
+
+ if (!needChange)
+ return true;
+
+ const int flags = 0; // follow link
+ // = AT_SYMLINK_NOFOLLOW; // don't follow link
+ return utimensat(AT_FDCWD, path, times, flags) == 0;
+}
+
+
+
+struct C_umask
+{
+ mode_t mask;
+
+ C_umask()
+ {
+ /* by security reasons we restrict attributes according
+ with process's file mode creation mask (umask) */
+ const mode_t um = umask(0); // octal :0022 is expected
+ mask = 0777 & (~um); // octal: 0755 is expected
+ umask(um); // restore the umask
+ // printf("\n umask = 0%03o mask = 0%03o\n", um, mask);
+
+ // mask = 0777; // debug we can disable the restriction:
+ }
+};
+
+static C_umask g_umask;
+
+// #define PRF(x) x;
+#define PRF(x)
+
+#define TRACE_SetFileAttrib(msg) \
+ PRF(printf("\nSetFileAttrib(%s, %x) : %s\n", (const char *)path, attrib, msg));
+
+#define TRACE_chmod(s, mode) \
+ PRF(printf("\n chmod(%s, %o)\n", (const char *)path, (unsigned)(mode)));
+
+
+bool SetFileAttrib_PosixHighDetect(CFSTR path, DWORD attrib)
+{
+ TRACE_SetFileAttrib("");
+
+ struct stat st;
+
+ bool use_lstat = true;
+ if (use_lstat)
+ {
+ if (lstat(path, &st) != 0)
+ {
+ TRACE_SetFileAttrib("bad lstat()");
+ return false;
+ }
+ // TRACE_chmod("lstat", st.st_mode);
+ }
+ else
+ {
+ if (stat(path, &st) != 0)
+ {
+ TRACE_SetFileAttrib("bad stat()");
+ return false;
+ }
+ }
+
+ if (attrib & FILE_ATTRIBUTE_UNIX_EXTENSION)
+ {
+ TRACE_SetFileAttrib("attrib & FILE_ATTRIBUTE_UNIX_EXTENSION");
+ st.st_mode = attrib >> 16;
+ if (S_ISDIR(st.st_mode))
+ {
+ // user/7z must be able to create files in this directory
+ st.st_mode |= (S_IRUSR | S_IWUSR | S_IXUSR);
+ }
+ else if (!S_ISREG(st.st_mode))
+ return true;
+ }
+ else if (S_ISLNK(st.st_mode))
+ {
+ /* for most systems: permissions for symlinks are fixed to rwxrwxrwx.
+ so we don't need chmod() for symlinks. */
+ return true;
+ // SetLastError(ENOSYS);
+ // return false;
+ }
+ else
+ {
+ TRACE_SetFileAttrib("Only Windows Attributes");
+ // Only Windows Attributes
+ if (S_ISDIR(st.st_mode)
+ || (attrib & FILE_ATTRIBUTE_READONLY) == 0)
+ return true;
+ st.st_mode &= ~(mode_t)(S_IWUSR | S_IWGRP | S_IWOTH); // octal: ~0222; // disable write permissions
+ }
+
+ int res;
+ /*
+ if (S_ISLNK(st.st_mode))
+ {
+ printf("\nfchmodat()\n");
+ TRACE_chmod(path, (st.st_mode) & g_umask.mask);
+ // AT_SYMLINK_NOFOLLOW is not implemted still in Linux.
+ res = fchmodat(AT_FDCWD, path, (st.st_mode) & g_umask.mask,
+ S_ISLNK(st.st_mode) ? AT_SYMLINK_NOFOLLOW : 0);
+ }
+ else
+ */
+ {
+ TRACE_chmod(path, (st.st_mode) & g_umask.mask);
+ res = chmod(path, (st.st_mode) & g_umask.mask);
+ }
+ // TRACE_SetFileAttrib("End")
+ return (res == 0);
+}
+
+
+bool MyCreateHardLink(CFSTR newFileName, CFSTR existFileName)
+{
+ PRF(printf("\nhard link() %s -> %s\n", newFileName, existFileName));
+ return (link(existFileName, newFileName) == 0);
+}
+
+#endif // !_WIN32
+
+// #endif
+
+}}}
--
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