Message-ID: <4BA2B127.4080308@emc.com>
Date: Thu, 18 Mar 2010 19:03:03 -0400
From: Douglas Seay <seay_douglas AT emc DOT com>
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To: cygwin AT cygwin DOT com
Subject: cannot create files with trailing dots on network share
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I=92ve had some problems, and it looks like it boils down to handling .=20
(dot) characters.  I created a little script to create some files with=20
dots in various places.  This script works fine in my $HOME directory=20
(C:\cygwin\home\SEAYD).  The name is wrong when the last character of=20
the filename is a dot and subdir is on a network share (H: in this=20
case).  The rest of the file operations seem to work because when I cat=20
them, you can see the file name inside the body (yes, I left of the \n).

Is there a known work around for this?

> /cygdrive/h/foo> ./fubar
> mkdir subdir
> create subdir/none
> create subdir/in.middle
> create subdir/.before
> create subdir/after.
> create subdir/.every.where.
> finished successfully

> /cygdrive/h/foo> ls -al subdir
> total 5120
> drwxr-xr-x+ 1 ???????? ????????  0 2010-03-18 18:31 .
> drwxrwxrwx  7 ???????? ????????  0 2010-03-18 18:31 ..
> -rwxr--r--  1 ???????? ????????  7 2010-03-18 18:31 .before
> -rwxr--r--  1 ???????? ????????  6 2010-03-18 18:31 ARO60A~X
> -rwxr--r--  1 ???????? ???????? 13 2010-03-18 18:31 _IQDF8~T
> -rwxr--r--  1 ???????? ????????  9 2010-03-18 18:31 in.middle
> -rwxr--r--  1 ???????? ????????  4 2010-03-18 18:31 none

> /cygdrive/h/foo> cat subdir/ARO60A~X
> after./cygdrive/h/foo> cat subdir/_IQDF8~T
> .every.where./cygdrive/h/foo>

A bit more background: I=92m trying to use cvs and I=92m getting errors.  I=
=20
cannot tell if this is the same issue as is going back and forth on the=20
mailing list right now, or if I=92ve bumped into something else.  When I=20
ran my =93cvs co=94 with strace, I see what appears to be CVS getting the=
=20
files in temp names that have a lot of dots, and then doing a rename=20
after the file has downloaded.  The download seems to work, but it puts=20
the file in an incorrectly named temp file, and then the rename to the=20
proper name is what fails and causes the error.  Since that doesn=92t=20
really sound cvs specific (ie =96 it should work), I went off and=20
reproduced it outside of CVS.

In case I=92m not clear, this is cygwin 1.7.1.  Mostly I=92ve been using=20
Server 2008.

- doug

Here is the perl script =93fubar=94 that I used to generate these files,=20
just in case it matters.  It really isn't fancy.

> #!/bin/perl
>=20
> use strict;
> use warnings;
>=20
> my $SUBDIR      =3D 'subdir';
> my @TEST_CASES  =3D qw(   none
>                         in.middle
>                         .before
>                         after.
>                         .every.where.
>                 );
>=20
> print "mkdir $SUBDIR\n";
> mkdir $SUBDIR unless ( -d $SUBDIR );
> chdir $SUBDIR or die "chdir($SUBDIR) failed: $!";
>=20
> foreach my $filename ( @TEST_CASES ) {
>         print "create $SUBDIR/$filename\n";
>         open TESTCASE, ">$filename" or die "error opening $filename: $!";
>         print TESTCASE $filename;
>         close TESTCASE;
> }
>=20
> print "finished successfully\n";


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