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Message-ID: <38525679.74D41BB2@vinschen.de>
Date: Sat, 11 Dec 1999 14:49:45 +0100
From: Corinna Vinschen <corinna AT vinschen DOT de>
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To: Chris Faylor <cgf AT cygnus DOT com>
CC: cygdev <cygwin-developers AT sourceware DOT cygnus DOT com>
Subject: Re: Patch: traling backslash
References: <385156DC DOT 3A4516EA AT vinschen DOT de> <19991210214114 DOT A4054 AT cygnus DOT com>
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Chris Faylor wrote:
> 
> Sorry that I didn't have time to give this my full attention earlier.
> 
> This looks basically ok, but I think you left in a section of code that
> shouldn't be there.  It seems to run a while loop twice looking for a
> '\\'.  That can't be right.  Is this just something wrong with the
> patch?

Aarg! You're right. I have checked it with an earlier snapshot and
I was negligent when moving the patch to the latest snapshot.
Sorry about that. It should be:

==== SNIP ====
Index: path.cc
===================================================================
RCS file: /src/cvsroot/winsup-991207/path.cc,v
retrieving revision 1.1.1.1
diff -u -p -r1.1.1.1 path.cc
--- path.cc     1999/12/08 22:51:38     1.1.1.1
+++ path.cc     1999/12/11 09:07:10
@@ -221,8 +221,14 @@ path_conv::path_conv (const char *src, s

       /* Eat trailing slashes */
       char *tail = strchr (full_path, '\0');
-      while (tail > full_path && (*--tail == '\\'))
-       *tail = '\0';
+      /* If path is only a drivename, Windows interprets it as
+         the current working directory on this drive instead of
+         the root dir which is what we want. So we need
+         the trailing backslash in this case. */
+      while (tail > full_path + 3 && (*--tail == '\\'))
+        *tail = '\0';
+      if (full_path[0] && full_path[1] == ':' && full_path[2] == '\0')
+        strcat (full_path, "\\");

       if (follow_mode == SYMLINK_IGNORE)
        {
==== SNAP ====

> Also, I'm not sure what this is going to do to those mount tables which
> have just a "c:" in them.  I think they should work ok but somehow I
> have a nagging feeling that there might be a problem there somewhere.

These mount table entries of the style "c:" are the problem.
If path_conv::get_win32() returns them, the WinAPI returns information
for the cwd on this drive, not of the root dir.

The above code only adds a trailing backslash, if the result of the
conversion is "X:". If the result is "X:\" it leaves the backslash
at it's position. If the result is "X:\foo\" it eats the trailing
backslash as before.

Corinna