From: john AT exmachina DOT net (John Mullee)
Subject: Re: B20, Win95: cp destroys file
17 Nov 1998 03:08:16 -0800
Message-ID: <3.0.3.16.19981116202503.26d7264c.cygnus.gnu-win32@exmachina.net>
References: <9811160532 DOT AA24319 AT modi DOT xraylith DOT wisc DOT edu>
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To: khan AT xraylith DOT wisc DOT edu, earnie_boyd AT yahoo DOT com, hank AT watson DOT ibm DOT com,
        noer AT cygnus DOT com
Cc: gnu-win32 AT cygnus DOT com

At 23:32 1998-11-15 -0600, you wrote:
>Earnie Boyd <earnie_boyd AT yahoo DOT com> writes:
>> ---"Henry S. Warren, Jr." <hank AT watson DOT ibm DOT com> wrote:
>> Hmm.  It used to do it that way in b19.  Is it possible that inode or
>> stat routine has become buggy?
>I believe that the problem is in MoveFileEx (WIN API), which doesn't do ..
>turn uses MoveFileEx to do the actual renaming).

The 1996-02-20 (VC4.1) MSVCRT.DLL (95&NT) uses MoveFile, like this:

(vc4.1/crt/src/rename.c; paraphrased for legal reasons (& clarity))

int __cdecl rename(const char *filename_from, const char *filename_to)
  {
   if(!MoveFile(filename_from, filename_to))
     {
      /* this error mapping is just for 'dos compatability' (!) /*
      _dosmaperr(GetLastError());
      return -1;
     }
   return 0;
  }

The same file contains a bogload of hocus-pocus to
reproduce the effect on a Mac. Eek.

-------------------

int MoveFile(const char *filename_from, const char *filename_to) -

The MoveFile function will move (rename) either a file or a directory
(including all its children) either in the same directory or across
directories. The one caveat is that the MoveFile function will fail on
directory moves when the destination is on a different volume. 

filename_from
  Points to a null-terminated string that names an
  existing file or directory.
filename_to
  Points to a null-terminated string that specifies the
  new name of a file or directory. The new name must not already exist.
  A new file may be on a different file system or drive.
  A new directory must be on the same drive. 

HTH;

John.

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