NYAOSの内蔵lsでリパースポイントを展開してみた(適当)

reparse_point.patch

diff -r c95acae76050 lsf.cpp
--- a/lsf.cpp Sun Feb 24 15:47:59 2013 +0900
+++ b/lsf.cpp	Tue Feb 26 19:34:27 2013 +0900
@@ -10,6 +10,8 @@
 #  include "ntcons.h" 
 #  include <windows.h>
 #  include <wincon.h>
+#  include <locale.h>
+#  include <ddk/ntifs.h>
 #endif
 
 #include "writer.h" /* for test  */
@@ -33,6 +35,7 @@
 static NnString ls_executable_file ;
 static NnString ls_read_only_file ;
 static NnString ls_end_code ;
+static NnString ls_reparse_point ;
 
 #define C2(x,y) (x<<8 | y)
 
@@ -73,6 +76,7 @@
     ls_executable_file  = LS_LEFT "1;35" LS_RIGHT ; /* 紫 */
     ls_read_only_file   = LS_LEFT "1;33" LS_RIGHT ; /* 黄 */
     ls_end_code         = LS_LEFT "0"    LS_RIGHT ; /* 灰色 */
+    ls_reparse_point    = LS_LEFT "1;36" LS_RIGHT ; /* 水色 */
 
     NnString env,one;
 
@@ -103,6 +107,7 @@
 	    case C2('h','i'): ls_hidden_file     = value ; break ;
 	    case C2('e','x'): ls_executable_file = value ; break ;
 	    case C2('e','c'): ls_end_code        = value ; break ;
+	    case C2('l','n'): ls_reparse_point   = value ; break ;
 	    default:       goto errpt;
 	}
     }
@@ -150,6 +155,8 @@
 {
     if( stat.isHidden() ){
 	return ls_hidden_file.chars();
+    }else if ( stat.isReparsePoint() ){
+	return ls_reparse_point.chars() ;
     }else if ( stat.isSystem() ){
 	return ls_system_file.chars() ;
     }else if( stat.isDir() ){
@@ -192,6 +199,54 @@
     buffer << "0123456789"[ n ];
 }
 
+/* リパースポイント情報の取得
+ * return
+ *	0 : 成功
+ *	1 : エラー
+ */
+static int get_reparse_data( const NnFileStat *st, char *target, size_t len )
+{
+#ifdef NYACUS
+    HANDLE hDir = CreateFile((st->name()).chars(), GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_FLAG_OPEN_REPARSE_POINT | FILE_FLAG_BACKUP_SEMANTICS, NULL);
+    if( hDir == INVALID_HANDLE_VALUE ) return 1;
+
+    BYTE _buf[MAXIMUM_REPARSE_DATA_BUFFER_SIZE];
+    REPARSE_DATA_BUFFER *buf = (REPARSE_DATA_BUFFER*)_buf;
+    DWORD dwRet = 0;
+    BOOL br = DeviceIoControl(hDir, FSCTL_GET_REPARSE_POINT, NULL, 0, (PVOID)buf, MAXIMUM_REPARSE_DATA_BUFFER_SIZE, &dwRet, NULL);
+
+    CloseHandle(hDir);
+    if( br == 0 ) return 1;
+
+    if( buf->ReparseTag == IO_REPARSE_TAG_MOUNT_POINT ){
+	size_t wlen = buf->MountPointReparseBuffer.SubstituteNameLength / sizeof(WCHAR);
+	WCHAR wcs[wlen + 1];
+	wcsncpy((wchar_t*)wcs, (const wchar_t*)(&buf->MountPointReparseBuffer.PathBuffer[buf->MountPointReparseBuffer.SubstituteNameOffset / sizeof(WCHAR)]), wlen + 1);
+	wcs[wlen] = 0;
+	setlocale(LC_CTYPE, "jpn");
+	if( (wcs[0] == '\\') && (wcs[1] == '?') && (wcs[2] == '?') && (wcs[3] == '\\') ){
+	    wcstombs(target, &wcs[4], len);
+	} else {
+	    wcstombs(target, wcs, len);
+	}
+	return 0;
+    } else if( buf->ReparseTag == IO_REPARSE_TAG_SYMLINK ){
+	size_t wlen = buf->SymbolicLinkReparseBuffer.SubstituteNameLength / sizeof(WCHAR);
+	WCHAR wcs[wlen + 1];
+	wcsncpy((wchar_t*)wcs, (const wchar_t*)(&buf->SymbolicLinkReparseBuffer.PathBuffer[buf->SymbolicLinkReparseBuffer.SubstituteNameOffset / sizeof(WCHAR)]), wlen + 1);
+	wcs[wlen] = 0;
+	setlocale(LC_CTYPE, "jpn");
+	if( (wcs[0] == '\\') && (wcs[1] == '?') && (wcs[2] == '?') && (wcs[3] == '\\') ){
+	    wcstombs(target, &wcs[4], len);
+	} else {
+	    wcstombs(target, wcs, len);
+	}
+	return 0;
+    }
+#endif
+    return 1;
+}
+
 /* ファイルの一覧を格子状に出力する.
  *	list   (i) NnFileStat の配列
  *	option (i) オプション
@@ -239,7 +294,28 @@
 		out << ls_end_code ;
 	    }
 
-	    if( st->isDir() ){
+	    if( st->isReparsePoint() ){
+		out << " -> ";
+		if( get_reparse_data( st, buffer, sizeof(buffer) ) == 0 ){
+		    NnDir *dir2 = new NnDir(buffer);
+		    NnFileStat *st2 = dir2->stat();
+		    if( option & OPT_COLOR ){
+			out << attr2color(*st2);
+		    }
+		    out << buffer;
+		    if( option & OPT_COLOR ){
+			out << ls_end_code ;
+		    }
+		    if( st2->isDir() ){
+			out << '/';
+		    } else if( isExecutable( st2->name() ) || st2->isDir() ){
+			out << '*';
+		    }
+		    delete dir2;
+		} else {
+		    out << '?';
+		}
+	    } else if( st->isDir() ){
 		out << '/';
 	    } else if( canExe ){
 		out << '*';
@@ -284,7 +360,10 @@
 	    if( option & OPT_COLOR ){
 		line << ls_end_code ;
 	    }
-	    if( st->isDir() ){
+	    if( st->isReparsePoint() ){
+		line << '@';
+		--left;
+	    }else if( st->isDir() ){
 		line << '/';
 		--left;
 	    }else if( isExecutable( st->name() ) ){
diff -r c95acae76050 nndir.h
--- a/nndir.h	Sun Feb 24 15:47:59 2013 +0900
+++ b/nndir.h	Tue Feb 26 19:34:27 2013 +0900
@@ -32,7 +32,8 @@
 	ATTR_SYSTEM   = 0x04 ,
 	ATTR_LABEL    = 0x08 ,
 	ATTR_DIRECTORY= 0x10 ,
-	ATTR_ARCHIVED = 0x20 
+	ATTR_ARCHIVED = 0x20 ,
+	ATTR_REPARSE_POINT = 0x400
     };
 
     NnFileStat( const NnString &name , unsigned attr , filesize_t size ,
@@ -53,6 +54,7 @@
     int isLabel()    const { return (attr_ & ATTR_LABEL    ) != 0 ; }
     int isDir()      const { return (attr_ & ATTR_DIRECTORY) != 0 ; }
     int isArchived() const { return (attr_ & ATTR_ARCHIVED ) != 0 ; }
+    int isReparsePoint() const { return (attr_ & ATTR_REPARSE_POINT ) != 0 ; }
 
     virtual int compare( const NnSortable &another ) const ;
 
@@ -93,6 +95,7 @@
     int isLabel()    const { return (attr_ & NnFileStat::ATTR_LABEL    )!=0; }
     int isDir()      const { return (attr_ & NnFileStat::ATTR_DIRECTORY)!=0; }
     int isArchived() const { return (attr_ & NnFileStat::ATTR_ARCHIVED )!=0; }
+    int isReparsePoint() const { return (attr_ & NnFileStat::ATTR_REPARSE_POINT )!=0; }
     int attr()       const { return  attr_ ; }
     filesize_t size()const { return  size_ ; }
     const NnTimeStamp &stamp() const { return stamp_; }

ビルドしてうｐった
http://sdrv.ms/ZwXmAj
3.3.6_0に上書きでおｋ