From 876da7fb748d988a367c7957bbb17a0b0733d290 Mon Sep 17 00:00:00 2001
From: Corinna Vinschen <corinna@vinschen.de>
Date: Mon, 20 Aug 2007 15:16:27 +0000
Subject: 	* fhandler.cc (rootdir): Delete. 	* winsup.h (rootdir):
 Drop declaration.

---
 winsup/cygwin/ChangeLog   |  5 +++
 winsup/cygwin/fhandler.cc | 89 -----------------------------------------------
 winsup/cygwin/winsup.h    |  1 -
 3 files changed, 5 insertions(+), 90 deletions(-)

diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index b2dd5c2..38b6d7c 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,8 @@
+2007-08-20  Corinna Vinschen  <corinna@vinschen.de>
+
+	* fhandler.cc (rootdir): Delete.
+	* winsup.h (rootdir): Drop declaration.
+
 2007-08-19  Corinna Vinschen  <corinna@vinschen.de>
 
 	* path.cc (fillout_mntent): Append backslash to drive-only paths before
diff --git a/winsup/cygwin/fhandler.cc b/winsup/cygwin/fhandler.cc
index 8b180b1..dadb90e 100644
--- a/winsup/cygwin/fhandler.cc
+++ b/winsup/cygwin/fhandler.cc
@@ -1008,95 +1008,6 @@ fhandler_base::lock (int, struct __flock64 *)
   return -1;
 }
 
-extern "C" char * __stdcall
-rootdir (const char *full_path, char *root_path)
-{
-  /* Possible choices:
-   * d:... -> d:/
-   * \\server\share... -> \\server\share\
-   */
-  int len;
-  char *rootp = root_path;
-
-  if (full_path[1] == ':')
-    {
-      *rootp++ = *full_path;
-      *rootp++ = ':';
-    }
-  else if (full_path[0] == '\\' && full_path[1] == '\\')
-    {
-      const char *cp = strchr (full_path + 2, '\\');
-      if (!cp)
-	return NULL;
-      while (*++cp && *cp != '\\')
-	;
-      memcpy (root_path, full_path, (len = cp - full_path));
-      rootp = root_path + len;
-    }
-  else
-    return NULL;
-
-  *rootp++ = '\\';
-  *rootp = '\0';
-
-  /* This determines whether reparse points are available.  Volume reparse
-     points on remote shares are neither recognized by Windows functions
-     like GetVolumeInformation, nor by their native NT counterparts. */
-  if (!wincap.has_guid_volumes () || GetDriveType (root_path) == DRIVE_REMOTE)
-    return root_path;
-
-  PREPARSE_DATA_BUFFER rp = (PREPARSE_DATA_BUFFER)
-			    alloca (MAXIMUM_REPARSE_DATA_BUFFER_SIZE);
-
-  char *test_path = (char *) alloca (CYG_MAX_PATH);
-  strcpy (test_path, full_path);
-
-  /* This determines the minimum length of the path we test for mount points.
-     If we're below this value, it's the root dir of the path itself. */
-  char *min_c = test_path + (rootp - root_path);
-  char *c = min_c;
-  while (*c)
-    ++c;
-  while (c > min_c)
-    {
-      *c = '\0';
-
-#     define MOUNTPT_ATTR (FILE_ATTRIBUTE_DIRECTORY \
-			   | FILE_ATTRIBUTE_REPARSE_POINT)
-      DWORD attr = GetFileAttributes (test_path);
-      if (attr != INVALID_FILE_ATTRIBUTES
-	  && (attr & MOUNTPT_ATTR) == MOUNTPT_ATTR)
-	{
-	  HANDLE h = CreateFile (test_path, GENERIC_READ, FILE_SHARE_READ,
-				 &sec_none_nih, OPEN_EXISTING,
-				 FILE_FLAG_OPEN_REPARSE_POINT
-				 | FILE_FLAG_BACKUP_SEMANTICS, NULL);
-	  if (h != INVALID_HANDLE_VALUE)
-	    {
-	      DWORD size;
-	      BOOL ret = DeviceIoControl (h, FSCTL_GET_REPARSE_POINT, NULL,
-					  0, (LPVOID) rp,
-					  MAXIMUM_REPARSE_DATA_BUFFER_SIZE,
-					  &size, NULL);
-	      CloseHandle (h);
-	      if (ret
-		  && rp->ReparseTag == IO_REPARSE_TAG_MOUNT_POINT
-		  && !rp->SymbolicLinkReparseBuffer.PrintNameLength)
-		{
-		  memcpy (root_path, test_path, len = c - test_path);
-		  strcpy (root_path + len, "\\");
-		  CloseHandle (h);
-		  break;
-		}
-	    }
-	}
-      while (--c > min_c && *c != '\\')
-	;
-    }
-
-  return root_path;
-}
-
 int __stdcall
 fhandler_base::fstat (struct __stat64 *buf)
 {
diff --git a/winsup/cygwin/winsup.h b/winsup/cygwin/winsup.h
index 9e949e8..034fba1 100644
--- a/winsup/cygwin/winsup.h
+++ b/winsup/cygwin/winsup.h
@@ -261,7 +261,6 @@ __ino64_t __stdcall hash_path_name (__ino64_t hash, PUNICODE_STRING name) __attr
 __ino64_t __stdcall hash_path_name (__ino64_t hash, PCWSTR name) __attribute__ ((regparm(2)));
 __ino64_t __stdcall hash_path_name (__ino64_t hash, const char *name) __attribute__ ((regparm(2)));
 void __stdcall nofinalslash (const char *src, char *dst) __attribute__ ((regparm(2)));
-extern "C" char *__stdcall rootdir (const char *full_path, char *root_path) __attribute__ ((regparm(2)));
 
 /* String manipulation */
 extern "C" char *__stdcall strccpy (char *s1, const char **s2, char c);
-- 
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