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Diffstat (limited to 'src/libs/7zip/win/CPP/Windows/FileLink.cpp')
-rw-r--r--src/libs/7zip/win/CPP/Windows/FileLink.cpp426
1 files changed, 0 insertions, 426 deletions
diff --git a/src/libs/7zip/win/CPP/Windows/FileLink.cpp b/src/libs/7zip/win/CPP/Windows/FileLink.cpp
deleted file mode 100644
index dc524700d..000000000
--- a/src/libs/7zip/win/CPP/Windows/FileLink.cpp
+++ /dev/null
@@ -1,426 +0,0 @@
-// Windows/FileLink.cpp
-
-#include "StdAfx.h"
-
-#include "../../C/CpuArch.h"
-
-#ifdef SUPPORT_DEVICE_FILE
-#include "../../C/Alloc.h"
-#endif
-
-#include "FileDir.h"
-#include "FileFind.h"
-#include "FileIO.h"
-#include "FileName.h"
-
-#ifndef _UNICODE
-extern bool g_IsNT;
-#endif
-
-namespace NWindows {
-namespace NFile {
-
-using namespace NName;
-
-/*
- Reparse Points (Junctions and Symbolic Links):
- struct
- {
- UInt32 Tag;
- UInt16 Size; // not including starting 8 bytes
- UInt16 Reserved; // = 0
-
- UInt16 SubstituteOffset; // offset in bytes from start of namesChars
- UInt16 SubstituteLen; // size in bytes, it doesn't include tailed NUL
- UInt16 PrintOffset; // offset in bytes from start of namesChars
- UInt16 PrintLen; // size in bytes, it doesn't include tailed NUL
-
- [UInt32] Flags; // for Symbolic Links only.
-
- UInt16 namesChars[]
- }
-
- MOUNT_POINT (Junction point):
- 1) there is NUL wchar after path
- 2) Default Order in table:
- Substitute Path
- Print Path
- 3) pathnames can not contain dot directory names
-
- SYMLINK:
- 1) there is no NUL wchar after path
- 2) Default Order in table:
- Print Path
- Substitute Path
-*/
-
-/*
-static const UInt32 kReparseFlags_Alias = (1 << 29);
-static const UInt32 kReparseFlags_HighLatency = (1 << 30);
-static const UInt32 kReparseFlags_Microsoft = ((UInt32)1 << 31);
-
-#define _my_IO_REPARSE_TAG_HSM (0xC0000004L)
-#define _my_IO_REPARSE_TAG_HSM2 (0x80000006L)
-#define _my_IO_REPARSE_TAG_SIS (0x80000007L)
-#define _my_IO_REPARSE_TAG_WIM (0x80000008L)
-#define _my_IO_REPARSE_TAG_CSV (0x80000009L)
-#define _my_IO_REPARSE_TAG_DFS (0x8000000AL)
-#define _my_IO_REPARSE_TAG_DFSR (0x80000012L)
-*/
-
-#define Get16(p) GetUi16(p)
-#define Get32(p) GetUi32(p)
-
-#define Set16(p, v) SetUi16(p, v)
-#define Set32(p, v) SetUi32(p, v)
-
-static const wchar_t *k_LinkPrefix = L"\\??\\";
-static const unsigned k_LinkPrefix_Size = 4;
-
-static const bool IsLinkPrefix(const wchar_t *s)
-{
- return IsString1PrefixedByString2(s, k_LinkPrefix);
-}
-
-/*
-static const wchar_t *k_VolumePrefix = L"Volume{";
-static const bool IsVolumeName(const wchar_t *s)
-{
- return IsString1PrefixedByString2(s, k_VolumePrefix);
-}
-*/
-
-void WriteString(Byte *dest, const wchar_t *path)
-{
- for (;;)
- {
- wchar_t c = *path++;
- if (c == 0)
- return;
- Set16(dest, (UInt16)c);
- dest += 2;
- }
-}
-
-bool FillLinkData(CByteBuffer &dest, const wchar_t *path, bool isSymLink)
-{
- bool isAbs = IsAbsolutePath(path);
- if (!isAbs && !isSymLink)
- return false;
-
- bool needPrintName = true;
-
- if (IsSuperPath(path))
- {
- path += kSuperPathPrefixSize;
- if (!IsDrivePath(path))
- needPrintName = false;
- }
-
- const unsigned add_Prefix_Len = isAbs ? k_LinkPrefix_Size : 0;
-
- unsigned len2 = MyStringLen(path) * 2;
- const unsigned len1 = len2 + add_Prefix_Len * 2;
- if (!needPrintName)
- len2 = 0;
-
- unsigned totalNamesSize = (len1 + len2);
-
- /* some WIM imagex software uses old scheme for symbolic links.
- so we can old scheme for byte to byte compatibility */
-
- bool newOrderScheme = isSymLink;
- // newOrderScheme = false;
-
- if (!newOrderScheme)
- totalNamesSize += 2 * 2;
-
- const size_t size = 8 + 8 + (isSymLink ? 4 : 0) + totalNamesSize;
- dest.Alloc(size);
- memset(dest, 0, size);
- const UInt32 tag = isSymLink ?
- _my_IO_REPARSE_TAG_SYMLINK :
- _my_IO_REPARSE_TAG_MOUNT_POINT;
- Byte *p = dest;
- Set32(p, tag);
- Set16(p + 4, (UInt16)(size - 8));
- Set16(p + 6, 0);
- p += 8;
-
- unsigned subOffs = 0;
- unsigned printOffs = 0;
- if (newOrderScheme)
- subOffs = len2;
- else
- printOffs = len1 + 2;
-
- Set16(p + 0, (UInt16)subOffs);
- Set16(p + 2, (UInt16)len1);
- Set16(p + 4, (UInt16)printOffs);
- Set16(p + 6, (UInt16)len2);
-
- p += 8;
- if (isSymLink)
- {
- UInt32 flags = isAbs ? 0 : _my_SYMLINK_FLAG_RELATIVE;
- Set32(p, flags);
- p += 4;
- }
-
- if (add_Prefix_Len != 0)
- WriteString(p + subOffs, k_LinkPrefix);
- WriteString(p + subOffs + add_Prefix_Len * 2, path);
- if (needPrintName)
- WriteString(p + printOffs, path);
- return true;
-}
-
-static void GetString(const Byte *p, unsigned len, UString &res)
-{
- wchar_t *s = res.GetBuffer(len);
- for (unsigned i = 0; i < len; i++)
- s[i] = Get16(p + i * 2);
- s[len] = 0;
- res.ReleaseBuffer();
-}
-
-bool CReparseAttr::Parse(const Byte *p, size_t size)
-{
- if (size < 8)
- return false;
- Tag = Get32(p);
- UInt32 len = Get16(p + 4);
- if (len + 8 > size)
- return false;
- /*
- if ((type & kReparseFlags_Alias) == 0 ||
- (type & kReparseFlags_Microsoft) == 0 ||
- (type & 0xFFFF) != 3)
- */
- if (Tag != _my_IO_REPARSE_TAG_MOUNT_POINT &&
- Tag != _my_IO_REPARSE_TAG_SYMLINK)
- // return true;
- return false;
-
- if (Get16(p + 6) != 0) // padding
- return false;
-
- p += 8;
- size -= 8;
-
- if (len != size) // do we need that check?
- return false;
-
- if (len < 8)
- return false;
- unsigned subOffs = Get16(p);
- unsigned subLen = Get16(p + 2);
- unsigned printOffs = Get16(p + 4);
- unsigned printLen = Get16(p + 6);
- len -= 8;
- p += 8;
-
- Flags = 0;
- if (Tag == _my_IO_REPARSE_TAG_SYMLINK)
- {
- if (len < 4)
- return false;
- Flags = Get32(p);
- len -= 4;
- p += 4;
- }
-
- if ((subOffs & 1) != 0 || subOffs > len || len - subOffs < subLen)
- return false;
- if ((printOffs & 1) != 0 || printOffs > len || len - printOffs < printLen)
- return false;
- GetString(p + subOffs, subLen >> 1, SubsName);
- GetString(p + printOffs, printLen >> 1, PrintName);
-
- return true;
-}
-
-bool CReparseShortInfo::Parse(const Byte *p, size_t size)
-{
- const Byte *start = p;
- Offset= 0;
- Size = 0;
- if (size < 8)
- return false;
- UInt32 Tag = Get32(p);
- UInt32 len = Get16(p + 4);
- if (len + 8 > size)
- return false;
- /*
- if ((type & kReparseFlags_Alias) == 0 ||
- (type & kReparseFlags_Microsoft) == 0 ||
- (type & 0xFFFF) != 3)
- */
- if (Tag != _my_IO_REPARSE_TAG_MOUNT_POINT &&
- Tag != _my_IO_REPARSE_TAG_SYMLINK)
- // return true;
- return false;
-
- if (Get16(p + 6) != 0) // padding
- return false;
-
- p += 8;
- size -= 8;
-
- if (len != size) // do we need that check?
- return false;
-
- if (len < 8)
- return false;
- unsigned subOffs = Get16(p);
- unsigned subLen = Get16(p + 2);
- unsigned printOffs = Get16(p + 4);
- unsigned printLen = Get16(p + 6);
- len -= 8;
- p += 8;
-
- // UInt32 Flags = 0;
- if (Tag == _my_IO_REPARSE_TAG_SYMLINK)
- {
- if (len < 4)
- return false;
- // Flags = Get32(p);
- len -= 4;
- p += 4;
- }
-
- if ((subOffs & 1) != 0 || subOffs > len || len - subOffs < subLen)
- return false;
- if ((printOffs & 1) != 0 || printOffs > len || len - printOffs < printLen)
- return false;
-
- Offset = (unsigned)(p - start) + subOffs;
- Size = subLen;
- return true;
-}
-
-bool CReparseAttr::IsOkNamePair() const
-{
- if (IsLinkPrefix(SubsName))
- {
- if (!IsDrivePath(SubsName.Ptr(k_LinkPrefix_Size)))
- return PrintName.IsEmpty();
- if (wcscmp(SubsName.Ptr(k_LinkPrefix_Size), PrintName) == 0)
- return true;
- }
- return wcscmp(SubsName, PrintName) == 0;
-}
-
-/*
-bool CReparseAttr::IsVolume() const
-{
- if (!IsLinkPrefix(SubsName))
- return false;
- return IsVolumeName(SubsName.Ptr(k_LinkPrefix_Size));
-}
-*/
-
-UString CReparseAttr::GetPath() const
-{
- UString s = SubsName;
- if (IsLinkPrefix(s))
- {
- s.ReplaceOneCharAtPos(1, '\\');
- if (IsDrivePath(s.Ptr(k_LinkPrefix_Size)))
- s.DeleteFrontal(k_LinkPrefix_Size);
- }
- return s;
-}
-
-
-#ifdef SUPPORT_DEVICE_FILE
-
-namespace NSystem
-{
-bool MyGetDiskFreeSpace(CFSTR rootPath, UInt64 &clusterSize, UInt64 &totalSize, UInt64 &freeSize);
-}
-#endif
-
-#ifndef UNDER_CE
-
-namespace NIO {
-
-bool GetReparseData(CFSTR path, CByteBuffer &reparseData, BY_HANDLE_FILE_INFORMATION *fileInfo)
-{
- reparseData.Free();
- CInFile file;
- if (!file.OpenReparse(path))
- return false;
-
- if (fileInfo)
- file.GetFileInformation(fileInfo);
-
- const unsigned kBufSize = MAXIMUM_REPARSE_DATA_BUFFER_SIZE;
- CByteArr buf(kBufSize);
- DWORD returnedSize;
- if (!file.DeviceIoControlOut(my_FSCTL_GET_REPARSE_POINT, buf, kBufSize, &returnedSize))
- return false;
- reparseData.CopyFrom(buf, returnedSize);
- return true;
-}
-
-static bool CreatePrefixDirOfFile(CFSTR path)
-{
- FString path2 = path;
- int pos = path2.ReverseFind(FCHAR_PATH_SEPARATOR);
- if (pos < 0)
- return true;
- #ifdef _WIN32
- if (pos == 2 && path2[1] == L':')
- return true; // we don't create Disk folder;
- #endif
- path2.DeleteFrom(pos);
- return NDir::CreateComplexDir(path2);
-}
-
-// If there is Reprase data already, it still writes new Reparse data
-bool SetReparseData(CFSTR path, bool isDir, const void *data, DWORD size)
-{
- NFile::NFind::CFileInfo fi;
- if (fi.Find(path))
- {
- if (fi.IsDir() != isDir)
- {
- ::SetLastError(ERROR_DIRECTORY);
- return false;
- }
- }
- else
- {
- if (isDir)
- {
- if (!NDir::CreateComplexDir(path))
- return false;
- }
- else
- {
- CreatePrefixDirOfFile(path);
- COutFile file;
- if (!file.Create(path, CREATE_NEW))
- return false;
- }
- }
-
- COutFile file;
- if (!file.Open(path,
- FILE_SHARE_WRITE,
- OPEN_EXISTING,
- FILE_FLAG_OPEN_REPARSE_POINT | FILE_FLAG_BACKUP_SEMANTICS))
- return false;
-
- DWORD returnedSize;
- if (!file.DeviceIoControl(my_FSCTL_SET_REPARSE_POINT, (void *)data, size, NULL, 0, &returnedSize))
- return false;
- return true;
-}
-
-}
-
-#endif
-
-}}
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