Fixes for three filesystem problems

4 files changed, 27 insertions, 5 deletions

diff --git a/ChangeLog b/ChangeLog
index 6567aab..859aed1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2003-03-18  Vince Darley  <vincentdarley@users.sourceforge.net>
+
+	* tests/cmdAH.test: fix test suite problem if /home is a symlink
+	* generic/tclIOUtil.c: fix bad error message with 'cd ""'
+	* win/tclWinFile.c: allow Tcl to differentiate between reparse
+	points which are symlinks and mounted drives.
+	
+	These changes fix [Bug #703264], [Bug #704917], [Bug #697862]
+	respectively.
+
 2003-03-17  Donal K. Fellows  <fellowsd@cs.man.ac.uk>
 
 	* doc/lsearch.n:	Altered documentation of -ascii options so
diff --git a/generic/tclIOUtil.c b/generic/tclIOUtil.c
index 29ba700..924689a 100644
--- a/generic/tclIOUtil.c
+++ b/generic/tclIOUtil.c
@@ -17,7 +17,7 @@
  * See the file "license.terms" for information on usage and redistribution
  * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tclIOUtil.c,v 1.77 2003/03/03 20:22:41 das Exp $
+ * RCS: @(#) $Id: tclIOUtil.c,v 1.77.2.1 2003/03/18 10:51:31 vincentdarley Exp $
  */
 
 #include "tclInt.h"
@@ -2528,6 +2528,8 @@ Tcl_FSChdir(pathPtr)
 	    cwdPathPtr = normDirName;
 	    Tcl_MutexUnlock(&cwdMutex);
 	}
+    } else {
+	Tcl_SetErrno(ENOENT);
     }
     
     return (retVal);
diff --git a/tests/cmdAH.test b/tests/cmdAH.test
index fe16def..9b26f8e 100644
--- a/tests/cmdAH.test
+++ b/tests/cmdAH.test
@@ -10,7 +10,7 @@
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 #
-# RCS: @(#) $Id: cmdAH.test,v 1.30 2003/01/09 10:38:32 vincentdarley Exp $
+# RCS: @(#) $Id: cmdAH.test,v 1.30.2.1 2003/03/18 10:51:31 vincentdarley Exp $
 
 if {[lsearch [namespace children] ::tcltest] == -1} {
     package require tcltest 2.1
@@ -401,7 +401,7 @@ test cmdAH-8.43 {Tcl_FileObjCmd: dirname} {
     set result [list [catch {file dirname ~} msg] $msg]
     set env(HOME) $temp
     set result
-} {0 /home}
+} [list 0 [expr {([file exists /home] && ([file type /home] == "link")) ? [file readlink /home] : "/home"}]]
 test cmdAH-8.44 {Tcl_FileObjCmd: dirname} {
     global env
     set temp $env(HOME)
@@ -419,7 +419,7 @@ test cmdAH-8.45 {Tcl_FileObjCmd: dirname} {
     set result [list [catch {file dirname ~} msg] $msg]
     set env(HOME) $temp
     set result
-} {0 /home}
+} [list 0 [expr {([file exists /home] && ([file type /home] == "link")) ? [file readlink /home] : "/home"}]]
 test cmdAH-8.46 {Tcl_FileObjCmd: dirname} {
     global env
     set temp $env(HOME)
diff --git a/win/tclWinFile.c b/win/tclWinFile.c
index 8213e6d..f44140f 100644
--- a/win/tclWinFile.c
+++ b/win/tclWinFile.c
@@ -11,7 +11,7 @@
  * See the file "license.terms" for information on usage and redistribution
  * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tclWinFile.c,v 1.44 2003/02/10 12:50:32 vincentdarley Exp $
+ * RCS: @(#) $Id: tclWinFile.c,v 1.44.2.1 2003/03/18 10:51:31 vincentdarley Exp $
  */
 
 //#define _WIN32_WINNT  0x0500
@@ -474,6 +474,16 @@ WinReadLinkDirectory(LinkDirectory)
 		if (0 == strncmp(copy,"\\??\\",4)) {
 		    copy += 4;
 		    len -= 4;
+		    if (0 == strncmp(copy,"Volume{",7)) {
+			/* 
+			 * This is actually a mounted drive, which is in any
+			 * case treated as being mounted in place, so it is
+			 * in some sense a symlink to itself
+			 */
+			Tcl_DStringFree(&ds);
+			Tcl_SetErrno(EINVAL);
+			return NULL;
+		    }
 		} else if (0 == strncmp(copy,"\\\\?\\",4)) {
 		    copy += 4;
 		    len -= 4;