AutoSSH problem

[Greg Freemyer]

On Thu, May 31, 2018, 4:58 AM Germain Le Chapelain  wrote:
>
> Hi,
>
>
> I am experiencing troubles trying to set up a reverse SSH tunnel:
>
> I have installed AutoSSH as such:
>
> cygrunsrv.exe -I AutoSSH -p /bin/autossh -a "-M 2 -R
> *:5900:localhost:5900 s...@lanvaux.fr" -y tcpip --type auto -e
> AUTOSSH_NTSERVICE=yes
>
>
> Now, it works great, except if the ssh service at lanvaux.fr would
> become unavailable.
>
> In this case, the service stops.

If you're still having problems:

I've had it working for about 4 years.  I've set it up on at least 4
different windows PCs.  WIN7 and WIN10.

I changed jobs 6 months ago so I no longer have access to any of the computers.

But I did write-up my notes as a blog post:

https://lizards.opensuse.org/2015/04/20/using-opensuse-as-a-reverse-tunnel-site-for-windows-7-remote-desktop/

Key section of the write-up for your issue assuming your SSHD server is Linux:

===
4) Tweak the sshd_config on the server

By default openSUSE enables “AllowTcpForwarding” and “TCPKeepAlive”.
Verify they are either commented out or set to “yes” in
/etc/ssh/sshd_config

Set “GatewayPorts yes” and “ClientAliveInterval 300” in /etc/ssh/sshd_config.

Also make sure they are not commented out.

restart sshd to get the config values to be re-read:sudo systemctl
restart sshd.service

===

Maybe that will help.
Greg

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Re: permission question

[Greg Freemyer]

If I'm going to relegate rsync to the trash bin due to it not
supporting Windows permissions well enough to be useful, I've got
other Windows recursive copy tools I use that don't preserve
permissions either.

I can't tell you how much I love Windows security permissions.  :(

In the mean time I have a huge number of folders now on my destination
drive I need to delete.  (over a million files it seems).

Neither cygwin, nor windows says I have permission to delete them.

Any idea how I can do it short of reformating.

Thanks
Greg
--
Greg Freemyer


On Wed, Dec 7, 2016 at 3:39 PM, Brian Inglis
<brian.ing...@systematicsw.ab.ca> wrote:
> On 2016-12-07 13:12, Erik Soderquist wrote:
>>> I really like cygwin and have used it for a decade plus.  Only in the
>>> last year or 18-months have I noticed significant permission issues
>>> that slow down my workflow.
>>>
>>> Copying these folders/files from one drive to another is a task I'd
>>> like to accomplish, but even more importantly I'd like to understand
>>> how to work with permissions in cygwin.  As it is, I'm concerned I
>>> will have to leave cygwin behind and I don't want to do that.
>>
>> I've been a Windows and Linux admin for years, and Windows permissions
>> can be a pain, but can also be very granular.
>>
>> What I normally do for something like this is use robocopy's "backup mode"
>> switch to bypass permissions on the source entirely and intentionally not
>> copy the permissions to the destination, then set up the permissions I want
>> on the destination after the copy is complete.
>>
>> The "backup mode" option requires either backup operator or local admin
>> permissions to use.
>
> Concur and recommend for local copies:
>
> robocopy src dst /s /sl /xj /copyall /zb /nfl /ndl /np /mt:8 /r:0 /w:0
>
> to copy non-empty directories; keep winsymlinks as is; skip junctions;
> all info; backup fallback; no file, directory, or progress logging;
> 8 threads, no retries, no waits: use /copy (like cp -p) instead of
> /copyall to skip security info.
>
> --
> Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada
>
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Re: permission question

[Greg Freemyer]

On Wed, Dec 7, 2016 at 1:48 PM, Stephen John Smoogen <smo...@gmail.com> wrote:
>> I'm tempted to just do a "chmod 755 -R .", but I've just had too many
>> windows permission issues in the last year to start trying things
>> without guidance.
>
> That would probably make things worse. I believe that Windows
> permissions are like attribs in Linux (which moves it into witchcraft
> and sorcery). For dealing with this sort of issue I would look at
> using the xcopy that Glenn from dell mentioned.
>
>> Greg

I really like cygwin and have used it for a decade plus.  Only in the
last year or 18-months have I noticed significant permission issues
that slow down my workflow.

Copying these folders/files from one drive to another is a task I'd
like to accomplish, but even more importantly I'd like to understand
how to work with permissions in cygwin.  As it is, I'm concerned I
will have to leave cygwin behind and I don't want to do that.

Greg
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Re: permission question

[Greg Freemyer]

On Wed, Dec 7, 2016 at 10:47 AM, Greg Freemyer <greg.freem...@gmail.com> wrote:
> I have a USB drive with 100,000's of thousands of files I put on it
> from one PC.  I've built that dataset up over a couple years.
>
> I moved the USB drive to a different PC and I'm trying to rsync it to
> another drive.
>
> 99.9% of the data seems to have made its way from one drive to the other.
>
> But I got a few permission denied messages when reading files off of
> the source drive.
>
> I really don't need anything but the equivalent of 666 permissions for
> the source drive files.
>
> I know linux well, but I have screwed up Windows permissions once too often.
>
> Is there a command I should run in Windows or cygwin to grant my user
> read/write permission to all of the files?
>
> Or I can parse the rsync log file I created and look for the handful
> of files that failed with permission denied.
>
> Thanks

It's worst than I thought.

I used rsync -avP to make the copy of the folders / files.   (Its
2.5TB, so it took all day yesterday to run).

I'm trying now to use "rsync -cvr" to compare the checksums of the
source / destination and re-copy any that got corrupted.

The trouble is lots of the destination files can't be read due to
permission issues, so the compare doesn't match and the rsync is
copying the same files again.

I admit to having little understanding of the Windows / cygwin
permissions integration.  Or even Windows permissions standalone.  I
do understand Linux permissions well.

I'm tempted to just do a "chmod 755 -R .", but I've just had too many
windows permission issues in the last year to start trying things
without guidance.

Greg

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permission question

[Greg Freemyer]

I have a USB drive with 100,000's of thousands of files I put on it
from one PC.  I've built that dataset up over a couple years.

I moved the USB drive to a different PC and I'm trying to rsync it to
another drive.

99.9% of the data seems to have made its way from one drive to the other.

But I got a few permission denied messages when reading files off of
the source drive.

I really don't need anything but the equivalent of 666 permissions for
the source drive files.

I know linux well, but I have screwed up Windows permissions once too often.

Is there a command I should run in Windows or cygwin to grant my user
read/write permission to all of the files?

Or I can parse the rsync log file I created and look for the handful
of files that failed with permission denied.

Thanks
Greg
--
Greg Freemyer

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Re: Please explain how to add to a thread in this mailing list

[Greg Freemyer]

On Thu, Aug 11, 2016 at 8:44 PM, Thomas Taylor  wrote:
> Thank you for responding to my post.  I think I asked the wrong question.
> What I really want to know is how to use this mailing list and others like
> it.  I'm new at this, and can't find any instructions anywhere.  Such lists
> must have become part of the culture, and I must have missed school that
> day.  I'm able to create a post, but don't know how to reply to one.
> Somehow I got the feeling that I should only reply to the mailing list,
> rather than directly to the person (like you) who responded to my post.  I
> don't get responses via email, and don't even know if I should.  Instead, I
> check for them periodically on the web page for the mailing list archive.
> If I find a response, I don't know the right way to reply.
>
>
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>

Are you subscribed such that you get each email as a separate email?

If so, all you have to do is reply.

Reply all s normally fine, but I've been on lists with various rules
(netiquettes).

I suspect your issue is how you subscribed to the list.

Greg

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Re: rsync performance degradation? Could be a windows issue?

[Greg Freemyer]

On Mon, Apr 11, 2016 at 2:20 PM, Greg Freemyer <greg.freem...@gmail.com> wrote:
> As I test, I just copied 30 GB of 1.5 GB files via robocopy.  None of
> the files had been accessed since a reboot, so none should have been
> in cache.
>
> According to Resource Monitor, yes.
>
> I'm getting about 105 MB/sec for read and 105 MB/sec for write vs  70
> MB/sec for rsync.

I just moved both drives to a Linux box.  Using the same rsync command
I'm getting 85 - 90 MB/sec.

That linux box is a 5-year old laptop, where as the windows box is a
pretty beefy box.  (6 cores, 64 GB ram)   Clearly the WIndows box
should be better performing and when running robocopy it is.

So it seems something about the combination of a Windows kernel,
cygwin, and rsync is dropping my performance at least a factor 20% and
maybe as much as 35%.

If I were to run rsync in strace, would anyone want to try and work on
the performance issue?  Or should it just be chalked up to rsync being
optimized for a linux kernel?

Thanks
Greg
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Re: rsync performance degradation? Could be a windows issue?

[Greg Freemyer]

On Mon, Apr 11, 2016 at 1:34 PM, Marco Atzeri <marco.atz...@gmail.com> wrote:
>
>
> On 11/04/2016 18:57, Greg Freemyer wrote:
>>
>> On Thu, Mar 31, 2016 at 4:48 PM, Greg Freemyer <greg.freem...@gmail.com>
>> wrote:
>>>
>>> All,
>>>
>>> I'm not sure this is on-topic, but at least I'm in cygwin when I
>>> notice the below:
>>>
>>> I do a lot of large data transfers between USB drives.  Often I get
>>> great speeds (70MB/sec or more).
>>>
>>> Sometimes it falls way off to closer to 20MB/sec with the same class
>>> of hardware.
>>>
>>> I experienced the "slow" transfer speed today, so I thought I'd ask if
>>> anyone knew a way to resolve it?
>>
>>
>> I'm trying rsync of a bunch of large files again today.
>>
>> Initially I saw the same slow copy speed (about 20 MB/sec).  My
>> destination was connected to a USB 3.1 port, but it seemed to be the
>> bottleneck so I moved it to a USB 3 port (3.1 should be 2x the speed
>> of 3.0, so it should not have been the bottleneck).
>>
>> After getting my throughput up above 50 MB/sec I notice in the windows
>> "performance monitor" that my source disk is hitting 100% utilization,
>> then a few seconds later my destination disk is.  And back and forth.
>> It seems I'm only reading or writing for a few seconds, then
>> alternating.
>>
>> I assume the issue is that too much data is being read / cached by
>> rsync prior to it being written out so I'm getting no advantage of
>> reading and writing in parallel.
>>
>> (I gather iostat isn't available for cygwin?)
>>
>> Is there some rsync (or cygwin) option / feature that would encourage
>> parallel reading/writing?
>>
>> fyi: I did some linux testing with "dd" over the weekend and I hit 140
>> MB/sec if I used a 100MB blocksize.  That was to / from the raw disk
>> (/dev/sda => /dev/sdb).
>>
>> If I bumped my blocksize to 1GB for dd in linux, my throughput dropped
>> to 70 MB/sec just as I see right now with rsync in cygwin.
>>
>> Thanks
>> Greg
>>
>
>
> Is windows robocopy faster ?

As I test, I just copied 30 GB of 1.5 GB files via robocopy.  None of
the files had been accessed since a reboot, so none should have been
in cache.

According to Resource Monitor, yes.

I'm getting about 105 MB/sec for read and 105 MB/sec for write vs  70
MB/sec for rsync.

Significantly, with robocopy Resource Monitor is showing a consistent
read/write speed.  With rsync read and write fluctuate back and forth.

As I stated before, I believe I should be able to get 140 MB/sec, but
I wouldn't complain about 105 MB/sec.  70 MB/sec just seems to
highlight a flaw in how rsync manages the data flow since it is 50% of
theoretical max.

ie.  this seems to be what rsync in cygwin is doing:

while (files)  {
read 1.5 GB file to ram
write 1.5 GB file from ram
fsync()  ensure 1.5 GB file is on disk
} endwhile

I haven't tested in linux.  Maybe rsync just isn't as efficient as I expect?

There is also the problem that rsync often slows down to below 50
MB/sec   I've tried it with no other activity on the PC.  Today I was
only getting 20 MB/sec at first.  (I moved the USB cable and it came
up to 70 MB/sec).

Thanks
Greg

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Re: rsync performance degradation? Could be a windows issue?

[Greg Freemyer]

On Thu, Mar 31, 2016 at 4:48 PM, Greg Freemyer <greg.freem...@gmail.com> wrote:
> All,
>
> I'm not sure this is on-topic, but at least I'm in cygwin when I
> notice the below:
>
> I do a lot of large data transfers between USB drives.  Often I get
> great speeds (70MB/sec or more).
>
> Sometimes it falls way off to closer to 20MB/sec with the same class
> of hardware.
>
> I experienced the "slow" transfer speed today, so I thought I'd ask if
> anyone knew a way to resolve it?

I'm trying rsync of a bunch of large files again today.

Initially I saw the same slow copy speed (about 20 MB/sec).  My
destination was connected to a USB 3.1 port, but it seemed to be the
bottleneck so I moved it to a USB 3 port (3.1 should be 2x the speed
of 3.0, so it should not have been the bottleneck).

After getting my throughput up above 50 MB/sec I notice in the windows
"performance monitor" that my source disk is hitting 100% utilization,
then a few seconds later my destination disk is.  And back and forth.
It seems I'm only reading or writing for a few seconds, then
alternating.

I assume the issue is that too much data is being read / cached by
rsync prior to it being written out so I'm getting no advantage of
reading and writing in parallel.

(I gather iostat isn't available for cygwin?)

Is there some rsync (or cygwin) option / feature that would encourage
parallel reading/writing?

fyi: I did some linux testing with "dd" over the weekend and I hit 140
MB/sec if I used a 100MB blocksize.  That was to / from the raw disk
(/dev/sda => /dev/sdb).

If I bumped my blocksize to 1GB for dd in linux, my throughput dropped
to 70 MB/sec just as I see right now with rsync in cygwin.

Thanks
Greg

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rsync performance degradation? Could be a windows issue?

[Greg Freemyer]

All,

I'm not sure this is on-topic, but at least I'm in cygwin when I
notice the below:

I do a lot of large data transfers between USB drives.  Often I get
great speeds (70MB/sec or more).

Sometimes it falls way off to closer to 20MB/sec with the same class
of hardware.

I experienced the "slow" transfer speed today, so I thought I'd ask if
anyone knew a way to resolve it?

The PC I'm running on is spec'ed for data processing so a 6 core (12
thread) setup with 128GB or RAM.

No significant data processing is going on.  Basically the machine is
currently dedicated to running rsync (as below).

I have 2 USB drives hooked up.  Both are USB-3 and should be able to
do 70MB/sec with no issue.

Neither drive has any unrelated I/O going on that I know of.  (I don't
see any in the Windows Performance Monitor.)

I have a folder with almost 200 4GB files ( 750GB total and all the
files are large).

I'm using "rsync -av" to copy files from the source to the destination
and the folder on the destination started out empty

Using Windows "Resource Monitor" I normally would see both drives
hitting over 70 MB/sec.  Today I'm seeing the source drive jump all
the way up to 125 MB/sec or so, but the destination is down around 20
MB/sec

When the 4GB source file completes reading, the source drive basically
goes idle for a while until the file is written out.

Then the source drive jumps back to 125 MB/sec until it finishes
reading the next file.  The destination drive on the other hand is
stuck down around 20 MB/sec.

I really don't think this is caused by slow hardware.  Could the
destination drive be dropping down to USB-2 mode?

===
And now that I've written up the above, the system has returned to a
more normal 75 MB/sec consistently on the output drive.

I'm still curious what might be going on.  As I say I move a lot of
data around as part of my work, and much of the time it is big groups
of either 1.5GB or 4GB files.

Thanks
Greg
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Re: compile ncurses "hello world" to run independent of cygwin?

[Greg Freemyer]

On Mon, Nov 2, 2015 at 7:48 AM, cyg Simple  wrote:
> On 11/1/2015 11:09 PM, Darik Horn wrote:
>>
>> Unless there is a specific reason to cross through Cygwin, it could be
>> easier to use the native MinGW environment directly:
>>
>> * http://www.mingw.org/wiki/Getting_Started
>>
>
> Poppycock! There is no reason that the user couldn't use Cygwin as the
> one and only system to build native binaries.

I'm relatively new to this mailing list.  Apologies if this is well
covered ground

The last time I checked (a few years ago), my understanding was the
cygwin dll's were licensed such that any programs using them had to be
GPL (or equivalent).

Is that wrong?

If so, anyone wanting to write a commercial tool has to avoid the
cygwin's core dll's.

Does using mingw do so?

Thanks
Greg

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Re: cygwin potentially corrupting permissions?

[Greg Freemyer]

Linda,

We seem to travel the same mailing lists.  This is my first time to cygwin's.

I saved your script as "lsacl.txt".  Then I used "cp lsacl.txt it" to
make a copy.

The copy is permission denied for reading.  Basic ls -l shows no
difference (as expected)

$ ls -l lsacl.sh it
rwx---+ 1 gaf None 1630 Sep 24 12:05 it
rwx---+ 1 gaf None 1630 Sep 24 12:00 lsacl.sh

But your script does show a difference:

$ ./lsacl.sh lsacl.sh it
[u::---,g::---,g:root:rwx,g:Authenticated
Users:rwx,g:SYSTEM:rwx,g:Users:r-x,m:rwx,o:---/] lsacl.sh
[u::---,g::r-x,g:root:rwx,g:Authenticated
Users:rwx,g:SYSTEM:rwx,g:Users:r-x,m:rwx,o:---/] it

My user id is "gaf".

fyi: I thought I knew how to read an ACL, but the above makes little
sense to me.  Note I can cat out "lsacl.sh", but I can't cat out "it".

Greg

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On Wed, Sep 23, 2015 at 10:58 PM, Linda Walsh <cyg...@tlinx.org> wrote:
> Greg Freemyer wrote:
>>
>> All,
>>
>> I've noticed on 2 different machines that if I copy (cp) a file I can
>> read with cygwin, I don't have permission to read the copy.
>
> ---
> What does the acl say?
>
> (Attached a script, lsacl, that I use -- it works
> with linux or cygwin and allows wildcards).
>
>
> #!/bin/bash
>
> ## $Id: lsacl,v 1.5 2015-08-02 10:29:25-07 law Exp law $
> # Version 2 -- try to work with getfacl on cygwin
> #
>
>
> shopt -s expand_aliases
> alias int=declare\ -i   sub=function  string=declare
>
> gfacl=$(type -P getfacl)
>
> if ! type -f cygwin 2>/dev/null ; then
> _un_=$(type -P uname)
> if  [[ $_un_ ]] ; then _os_=$($_un_ -o);
> elif[[ -e /proc/sys/kernel ]]; then _os_=Linux;
> else_os_=Cygwin;
> fi
> if  [[ $_os_ =~ Cygwin ]]; then function cygwin () {
> return 0; }
> elsefunction cygwin () { return 1; }
> fi
> unset _un_ _os_
> export -f cygwin
> fi
>
> if cygwin 2>/dev/null ;then
> [[ $gfacl ]] || { printf "FATAL: Cannot find getfacl in path\n";
> exit 1; }
> sub gfacl () { "$gfacl" "$@"; }
> else
> ## linux version has broken semantics requiring "-p"
> sub gfacl () { "$gfacl" -p "$@" ; }
> fi
>
> export -f gfacl
>
>
> sub facl2str {
> string fn=${1:?"Need pathname"}
> string s1='/^\#.*$/d; /^\s*$/d; s/\s*#.*$//;
> s/^(.)(ser|roup|ask|ther):/\1:/; y/\n/,/'
> string facl=$(gfacl -a "$fn"|sed -r "$s1"|tr "\n" ",")
> facl=${facl%,}
> string dacl=$(gfacl -d "$fn"|sed -r "s/^default://; $s1"|tr "\n"
> ",")
> dacl=${dacl%,}
> printf "[%s/%s]\n" "$facl" "$dacl"
> }
>
>
>
> int acllen=0 maxfnln=0
> #for fn in "$@" ; do if ((maxfnln<${#fn})); then maxfnln=${#fn}; fi ; done
>
> sub acl_str () {
> if cygwin ;then
> perm=$(facl2str "$fn")
> else
> qfn=$(printf "%q " "$fn")
> out="$(chacl -l "$fn")"
> perm="${out#$qfn}"
> fi
> printf "%s\n" "$perm"
> }
>
>
> for fn in "$@"; do
> int max=40
> perm=$(acl_str "$fn")
> int len=${#perm}
> if ((len>_acl_len_)); then acllen=len; fi
> if ((acllen>max));  then acllen=max; fi
> printf "%-${acllen}s %s\n" "$perm" "$fn"
> done
>

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Re: cygwin potentially corrupting permissions?

[Greg Freemyer]

On Thu, Sep 24, 2015 at 2:06 PM, Linda Walsh <cyg...@tlinx.org> wrote:
> Greg Freemyer wrote:
>>
>> Linda,
>
>
>> I saved your script as "lsacl.txt".  Then I used "cp lsacl.txt it" to
>> make a copy.
>>
>> The copy is permission denied for reading.  Basic ls -l shows no
>> difference (as expected)
>>
>> $ ls -l lsacl.sh it
>> rwx---+ 1 gaf None 1630 Sep 24 12:05 it
>> rwx---+ 1 gaf None 1630 Sep 24 12:00 lsacl.sh
>>
>> But your script does show a difference:
>>
>> $ ./lsacl.sh lsacl.sh it
>> [u::---,g::---,g:root:rwx,g:Authenticated
>> Users:rwx,g:SYSTEM:rwx,g:Users:r-x,m:rwx,o:---/] lsacl.sh
>> [u::---,g::r-x,g:root:rwx,g:Authenticated
>> Users:rwx,g:SYSTEM:rwx,g:Users:r-x,m:rwx,o:---/] it
>
> ---
> Well user 'gaf' (that's you, from the file perms has no access).
>
> So up front, you are denied before anything happens.

Totally logical, but not accurate. )

I am the owner of both "it" and "lsacl.sh."

For both the user permissions are "---"  (why I don't know.  I created
lsacl.sh by a simple drag and drop out of firefox.)

I can cat out "lsacl.sh", but not "it".

I know "chmod +rw it" gives me access to the file.  The problem is
Windows is creating files with permissions like lsacl.sh routinely on
my system.

Then when I do anything to them in cygwin, the permissions are
modified to block my access.

I first noticed this because I was exporting CSV files from excel,
then editing them with vi from cygwin.

On the first edit, all was good.  After that, I no longer had
permission to access the file.

So, either:

- Windows 7 (on 2 different machines) has started using default
permissions that are bad on their face

- cygwin is not properly maintaining the permissions when it manipulates a file

Either way, I would really like a solution that doesn't involve a
manual chmod for every file I create via the normal Windows interface
and which I want to work with it in cygwin.

Greg


> lsacl is the embedded acl (the '+') at the end of the file perms
>
> u::--- =  user seen by 'ls -l' has no access, g::--- =  group seen by 'ls -l
> has no access
> g:root:rwx = group root has read/write/execute access
> g:Authenticated Users:rwx == group consisting of Authenticated Users...
> (after you login or provide credentials).
> m:rwx  m = a maximum allowed privs 'mask' for user/groups other
> than owner, but since all bits are turned on, it has no limiting
> effect
> o:---  = other has no access
>
> So the main take-away is that since your 'user' has no access, pretty much
> everything else is ignored.
>
> From the mode-bits+acl, amost anyone in the groups:
> root, Authenticated Users,SYSTEM, or Users, ***except** User 'gaf' (you)
> should have access...
>
> you might try 1) chmod u+rwx file ...
> then look at both mode+acl... if you have no access
> and acl still says u::---, then nuke the acl or modify it with "setfacl"
> (setfacl --help)...
>
>>
>> We seem to travel the same mailing lists.  This is my first time to
>> cygwin's.
>>
> 
> Yeah... I wondered about that -- my Tbird tried to change my
> reply addr to suse(at)tlinx based on you being the 1st address I typed
> in... ;-)

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Re: cygwin potentially corrupting permissions?

[Greg Freemyer]

On Thu, Sep 24, 2015 at 3:22 PM, Ken Brown  wrote:

>
>
> The problem could be caused by the default ACL on whatever directory you're
> working in.  You might consider running 'setfacl -b' and/or 'setfacl -k' on
> that directory.  (Run 'setfacl --help' for more information.)


I just posted this, but it looks like directories created in cygwin
have reasonable ACLs, but directories created via "File Explorer" are
bizarre.

Where bizzare is defined as:
$ getfacl /cygdrive/c/Test-dir-created-in-file-explorer/
# file: /cygdrive/c/Test-dir-created-in-file-explorer/
# owner: GAF
# group: None
user::---
group::---
group:root:rwx
group:Authenticated Users:rwx
group:SYSTEM:rwx
group:Users:r-x
mask:rwx
other:---
default:user::---
default:group::---
default:group:root:rwx
default:group:Authenticated Users:rwx
default:group:SYSTEM:rwx
default:group:Users:r-x
default:mask:rwx
default:other:---

Here's getfacl for C:\

$ getfacl /cygdrive/c
# file: /cygdrive/c
# owner: TrustedInstaller
# group: TrustedInstaller
user::---
group::---
group:root:rwx
group:Authenticated Users:---
group:SYSTEM:rwx
group:Users:r-x
mask:rwx
other:---
default:user::---
default:group::---
default:group:root:rwx
default:group:Authenticated Users:rwx
default:group:SYSTEM:rwx
default:group:Users:r-x
default:mask:rwx
default:other:---

Is that what others have?

fyi: I just realized I installed "System Mechanic" around the time I
started seeing problems.  It is installed on both of the machines
having issues.  I wonder if it adulterated my ACLs in an attempt to
make my machine safer?

Thanks
Greg

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Re: cygwin potentially corrupting permissions?

[Greg Freemyer]

On Thu, Sep 24, 2015 at 9:46 PM, Andrey Repin  wrote:
> Obscurity has no relation to security

Tell any Army in the world about that theory.  They should save their
money wasted on camouflage, stealth technology, etc.

But, I did not knowingly add the "root" group.

Greg

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Re: cygwin potentially corrupting permissions?

[Greg Freemyer]

On Thu, Sep 24, 2015 at 2:37 PM, Andrey Repin <anrdae...@yandex.ru> wrote:
> Greetings, Greg Freemyer!
>
>> We seem to travel the same mailing lists.  This is my first time to cygwin's.
>
>> I saved your script as "lsacl.txt".  Then I used "cp lsacl.txt it" to
>> make a copy.
>
>> The copy is permission denied for reading.  Basic ls -l shows no
>> difference (as expected)
>
>> $ ls -l lsacl.sh it
>> rwx---+ 1 gaf None 1630 Sep 24 12:05 it
>> rwx---+ 1 gaf None 1630 Sep 24 12:00 lsacl.sh
>
> Notice the "+" at the end of basic POSIX access bits.
> And use getfacl (or native icacl(s)) to view real permissions.

I'm using Linda' script that does that, but here's the raw getfacl
output for 2 folders created in C:\Note they have very different
ACLs.  Why?

$ getfacl /cygdrive/c/Test-dir-created-in-cygwin/
# file: /cygdrive/c/Test-dir-created-in-cygwin/
# owner: GAF
# group: None
user::rwx
group::r-x
group:root:rwx
group:Authenticated Users:rwx
group:SYSTEM:rwx
group:Users:r-x
mask:rwx
other:r-x
default:user::rwx
default:group::r-x
default:group:root:rwx
default:group:Authenticated Users:rwx
default:group:SYSTEM:rwx
default:group:Users:r-x
default:mask:rwx
default:other:r-x



$ getfacl /cygdrive/c/Test-dir-created-in-file-explorer/
# file: /cygdrive/c/Test-dir-created-in-file-explorer/
# owner: GAF
# group: None
user::---
group::---
group:root:rwx
group:Authenticated Users:rwx
group:SYSTEM:rwx
group:Users:r-x
mask:rwx
other:---
default:user::---
default:group::---
default:group:root:rwx
default:group:Authenticated Users:rwx
default:group:SYSTEM:rwx
default:group:Users:r-x
default:mask:rwx
default:other:---

That last one with the directory created via file explorer has truly
bizarre (to me) ACLs.  Normal?  If not, how do I fix it.

Note I have 2 different Win 7 boxes showing this same behavior.

>
>> But your script does show a difference:
>
>> $ ./lsacl.sh lsacl.sh it
>> [u::---,g::---,g:root:rwx,g:Authenticated 
>> Users:rwx,g:SYSTEM:rwx,g:Users:r-x,m:rwx,o:---/] lsacl.sh
>> [u::---,g::r-x,g:root:rwx,g:Authenticated 
>> Users:rwx,g:SYSTEM:rwx,g:Users:r-x,m:rwx,o:---/] it
>
>> My user id is "gaf".
>
>> fyi: I thought I knew how to read an ACL, but the above makes little
>> sense to me.  Note I can cat out "lsacl.sh", but I can't cat out "it".
>
> Your system seems to be mangled. There should be no "root" user.

hmm. I think that is a "root" group, not a "root" user.

I seriously doubt I created a root as a group.  Are you sure that
isn't standard with cygwin?

note: I love using cygwin, but I'm not very knowledgeable about user
and group management in cygwin.  On the other hand, I'm pretty good at
it in Linux. (I'm a 30+ year UNIX/Linux user)

> Also, please avoid top posting as per list rules.

If I did, I will try to avoid it in the future.  This e-mail is
interspersed.  I assume that is desired.

Greg

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Re: cygwin potentially corrupting permissions?

[Greg Freemyer]

On Thu, Sep 24, 2015 at 3:27 PM, Linda Walsh <cyg...@tlinx.org> wrote:
> Greg Freemyer wrote:
>>
>>
>> Totally logical, but not accurate. )
>
> ---
> What does it say if you do an 'lsacl' on "." (the parent directory).

$ ./lsacl.sh .
[u::---,g::---,g:root:rwx,g:Authenticated
Users:rwx,g:SYSTEM:rwx,g:Users:r-x,m:rwx,o:---/u::---,g::---,g:root:rwx,g:Authenticated
Users:rwx,g:SYSTEM:rwx,g:Users:r-x,m:rwx,o:---] .

But maybe this is interesting.  I just created 2 folders in C:\   .  I
did it at the C:\ level because I can't imagine I ever modified the
ACLs on C:\.

Anyway, one directory was created via "mkdir" in cygwin.  The other
via the file explorer.  Look at how different the ACLs are:

$ mkdir /cygdrive/c/Test-dir-created-in-cygwin

$ ./lsacl.sh /cygdrive/c/Test-dir-created-in-cygwin/
[u::rwx,g::r-x,g:root:rwx,g:Authenticated
Users:rwx,g:SYSTEM:rwx,g:Users:r-x,m:rwx,o:r-x/u::rwx,g::r-x,g:root:rwx,g:Authenticated
Users:rwx,g:SYSTEM:rwx,g:Users:r-x,m:rwx,o:r-x]
/cygdrive/c/Test-dir-created-in-cygwin/

$ ./lsacl.sh /cygdrive/c/Test-dir-created-in-file-explorer/
[u::---,g::---,g:root:rwx,g:Authenticated
Users:rwx,g:SYSTEM:rwx,g:Users:r-x,m:rwx,o:---/u::---,g::---,g:root:rwx,g:Authenticated
Users:rwx,g:SYSTEM:rwx,g:Users:r-x,m:rwx,o:---]
/cygdrive/c/Test-dir-created-in-file-explorer/

What's that about?  Again I'm not expert at ACLs, but the ACLs on the
directory created via File Explorer look really strange to me.

> This is a local file system?  NTFS?

Yes, C: drive. It's my local system drive on both computers and NTFS
on both machines.

> Do you have process hacker?  Maybe the writing process has a different
> integrity label or such.

No, but let me know if you still want me to pursue that.  For now I'm
thinking the ACLs on folders created via File Explorer are somehow
getting screwed up.

Thanks
Greg

> Process hacker lets you see what the integrity labels are on files,
> but to see what they are on files you'd have to d/l another util.
> (chml/regil
>
>>
>> - cygwin is not properly maintaining the permissions when it manipulates a
>> file
>
> 
> May not be able to ... Windows trumps cygwin.
> MS-regularly screws w/windows, .. it's like switching to a new
> init system every month... ok.. maybe not quite that bad...
>
>>
>> Either way, I would really like a solution that doesn't involve a
>> manual chmod for every file I create via the normal Windows interface
>> and which I want to work with it in cygwin.
>
> ===
> I can understand that -- that's sorta why I haven't upgraded
> my cygwin lately -- She spent alot of time solving a problem that didn't
> really appear on my system, so changing the whole security system -- well
> I already know that cygwin doesn't respect existing standards or sources.
> (overwrite windows mount points created -- and is shipping a login that
> zeros your environment -- even when passed switch to not do so --
> effectively
> wipes your windows session -- forcing users to copy sessions from static
> files to get around the problem.
>

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cygwin potentially corrupting permissions?

[Greg Freemyer]

All,

I've noticed on 2 different machines that if I copy (cp) a file I can
read with cygwin, I don't have permission to read the copy.

I don't recall that happening in that past.  If this was Linux I would
feel comfortable looking at umask, etc. to figure out what is going
on.  With cygwin I'm at a loss.

If someone can tell me what I have configured wrong, I'd really appreciate it.

fyi: I have a very vanilla install of cygwin on both machines.  I've
been using cygwin for many years and never noticed this before.  It
maybe an issue unique to Excel.

Here's a scenario I just went through:

1) Use Excel (2010 or 2013) to create a simple 2 column, 3 row table
and use "Save As" to save it as a CSV file name "Book1.csv"

2) verify it can be read via cygwin

$ cat Book1.csv
field1,field2
1,2
3,4

3) use cp to make a copy

cp Book1.csv fail.csv

4) try to read the copy and fail
$ cat fail.csv
cat: fail.csv: Permission denied

5) Verify the owner / UID / perms are the same

$ ls -l Book1.csv fail.csv
rwx---+ 1 GAF None 25 Sep 23 18:45 Book1.csv
rwx---+ 1 GAF None 25 Sep 23 18:46 fail.csv

$ ls -ln Book1.csv fail.csv
rwx---+ 1 1006 513 25 Sep 23 18:45 Book1.csv
rwx---+ 1 1006 513 25 Sep 23 18:46 fail.csv

They are, but there are extended attributes hiding behind the + sign.

6) Force the permissions and test again
$ chmod +rw fail.csv

$ cat fail.csv
field1,field2
1,2
3,4

==

Bewildered,
Greg
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Re: rsync hanging on Access MDB file

[Greg Freemyer]

On Tue, Mar 3, 2009 at 3:36 AM, Spiro Trikaliotis
an-cyg...@spiro.trikaliotis.net wrote:
 Hello Des,

 * On Mon, Mar 02, 2009 at 11:41:05PM -0800 Des Dougan wrote:

 rsync: connection unexpectedly closed (449058 bytes received so far)
 [receiver]
 rsync error: error in rsync protocol data stream (code 12) at io.c(635)
 [receiver=3.0.2]
 rsync: connection unexpectedly closed (237 bytes received so far)
 [generator]
 rsync error: unexplained error (code 255) at io.c(635) [generator=3.0.2]

 The error occurs each time on the same Access database file (part of the
 application suite the server was installed for).

 I know this behaviour for other file types: It happens if these files
 are either hold open (Outlook .pst files come to mind), or even modified
 while rsync is in progress.

 Thus, can you really rule out that noone else is accessing this file
 while rsync is taking place? My experience with Access is rather old
 (Access 1.1 and 2.0, some 15 years ago), but for these ancient versions,
 every time someone accesses this database, he opens the .mdb file
 himself in a shared manner. Thus, even if nothing is running on the
 server, there might be some remote user that is still accessing the DB.

 Regards,
 Spiro.

The above is exactly why VSS was created by Microsoft.

I brought up cygwin support of vss a week or two ago.

Not perfect, but you should be able to make it work by making some
win32 calls to setup the shadow copy, then rsync from there and make
another win32 call to delete the shadow copy when your done.

I found the thread at:
http://www.mail-archive.com/cygwin@cygwin.com/msg94495.html

If you have more questions, it might make sense to reply to those
messages.  Or at least cut  paste some of it here.

Greg
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Re: rsync hanging on Access MDB file

[Greg Freemyer]

On Tue, Mar 3, 2009 at 12:13 PM, Spiro Trikaliotis
 Hello Greg,

 * On Tue, Mar 03, 2009 at 10:20:52AM -0500 Greg Freemyer wrote:
 On Tue, Mar 3, 2009 at 3:36 AM, Spiro Trikaliotis
 xx...@spiro.trikaliotis.net wrote:

 Please do not cite mail addresses!

  Thus, can you really rule out that noone else is accessing this file
  while rsync is taking place? My experience with Access is rather old
  (Access 1.1 and 2.0, some 15 years ago), but for these ancient versions,
  every time someone accesses this database, he opens the .mdb file
  himself in a shared manner. Thus, even if nothing is running on the
  server, there might be some remote user that is still accessing the DB.
 [...]
 The above is exactly why VSS was created by Microsoft.

 Unfortunately, if you take a shadow copy of an open file, you might end
 with a correctly copied (or rsync'ed) file which is broken. You must be
 sure that noone is accessing the file at the moment you take the shadow
 copy.

I don't use Access, but in general good applications should support
being quiesced.  They do that by registering with the VSS service.
Then when a shadow copy is requested, vss first notifies all
registered apps to quiesce themselves.

Once all registered apps are quiesced, the shadow copy is created.

The whole purpose of the process is to ensure logically consistent
data is captured in the backup.

NTbackup from Microsoft is using vss to make its backups, so I would
be very surprised if Access is not registering itself and fitting into
Microsoft's master plan.

Greg
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Re: rsync hanging on Access MDB file

[Greg Freemyer]

On Tue, Mar 3, 2009 at 2:01 PM, Spiro Trikaliotis
an-cyg...@spiro.trikaliotis.net wrote:
 Hello Greg,

 * On Tue, Mar 03, 2009 at 12:26:17PM -0500 Greg Freemyer wrote:
 On Tue, Mar 3, 2009 at 12:13 PM, Spiro Trikaliotis
 [shadow copies on Windows]
 I don't use Access, but in general good applications should support
 being quiesced.  They do that by registering with the VSS service.
 Then when a shadow copy is requested, vss first notifies all
 registered apps to quiesce themselves.

 Yes, I forgot about that. This might work, at least with newer versions
 of Access.

 There might be a caveat, though: You can remotely use MS Access to
 access an MDB file on a file server. You can even do it multiple times,
 having x instances of MS Access access just one file on a remote server.
 Can a remote application register with the VSS service on a completely
 different machine?

No idea, but given vss is standard microsoft stuff, it is very feasible it can.

FYI: registering like this is one place I think Windows is ahead of
Linux.  And Microsoft has been supporting the whole process since they
brought out vss way back with Win2003.

Greg
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Re: Another long pathname question

[Greg Freemyer]

On Thu, Feb 26, 2009 at 4:19 AM, Corinna Vinschen
corinna-cyg...@cygwin.com wrote:
 On Feb 25 18:58, Greg Freemyer wrote:
 I just read the release email for 1.7.0

 In part it says:

 - Fallout from the long path names: If the current working directory is
   longer than 260 bytes, or if the current working directory is a virtual
   path (like /proc, /cygdrive, //server), don't call native Win32 programs
   since they don't understand these paths.

 I've done a fair amount of long path name testing in Vista / Win2008,
 and I'd like to understand the above in more detail.

 It's a restriction of Win32 processes.  The CWD is stored in the PEB
 (process environment block) of every process.  It's stored as path as
 well as as handle.  Unfortunately the CWD in the PEB is a static storage
 area of 520 bytes == 260 (MAX_PATH) wide characters.  That's why no
 Win32 process can have a long path as CWD.  See also
 http://msdn.microsoft.com/en-us/library/aa365530(VS.85).aspx


 Corinna

I just created a long path with long individual directory names and
placed junk.txt in it both at one of the upper directories, and way
down at the bottom.

Then I used file explorer to open both via notepad.  Using task
manager I can see the full invocation arguments (view enables the
command line field).

If the path is short, it uses the full long directory name as
expected.  If the path exceeds 260, it reverts to using the 8.3 names,
thus giving a workaround that will allow you to descend deeper into a
directory structure.

Interesting trick.  Maybe you should consider something similar for cygwin.

Greg
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Re: special name for vss shadow copy device?

[Greg Freemyer]

On Wed, Feb 25, 2009 at 1:57 PM, Christian Franke
christian.fra...@t-online.de wrote:
 Greg Freemyer wrote:

 ...
 My personal desire is make a full dd copy of a snapshot onto a external
 drive.

 ie. dd if=/dev/sd-shadowcopy4 of=my_image_file



 With new Cygwin 1.7, the VSS volume image can be retrieved as follows:

 dd if='//?/GLOBALROOT/Device/HarddiskVolumeShadowCopy4' of=...

 But this does not work with Cygwin 1.5.


 To access individual files, assign a drive letter X: to the VSS volume:

 http://blogs.msdn.com/adioltean/archive/2006/09/18/761515.aspx
 http://blogs.msdn.com/adioltean/archive/2005/01/20/357836.aspx

 Then you can access the files via /cygdrive/x. This works with cygwin 1.5
 also. Only the WinXP explorer refuses to access the drive.

 See also related discussion here:
 http://cygwin.com/ml/cygwin/2008-11/msg00070.html

 Hope this helps,

Wonderful links and information!!

That is all I really needed, since I assume 1.5 is basically no longer
being developed, I don't see a big need to create mappings for the
shadow volumes.  I do think it would be good to have the above links
and documentation added to the special names section of the
documentation.

Time to experiment with Cygwin 1.7

I know the whole package is still considered test.  How stable is the
actual dll(s).  Especially as relates to this type of functionality.

Thanks
Greg
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Another long pathname question

[Greg Freemyer]

I just read the release email for 1.7.0

In part it says:

- Fallout from the long path names: If the current working directory is
  longer than 260 bytes, or if the current working directory is a virtual
  path (like /proc, /cygdrive, //server), don't call native Win32 programs
  since they don't understand these paths.

I've done a fair amount of long path name testing in Vista / Win2008,
and I'd like to understand the above in more detail.

In particular in Vista/Win2008 the open dialog box now allows me to
open and modify pre-existing files with long paths.

Or I can use the file explorer to browse to those files, then right
click and open them successfully.

FYI: the command line tools for Vista / Win2008 seem to still have an
issue with long paths.

Greg
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Re: special name for vss shadow copy device?

[Greg Freemyer]

On Wed, Feb 25, 2009 at 6:01 PM, Larry Hall (Cygwin)
reply-to-list-only...@cygwin.com wrote:
 Greg Freemyer wrote:
 snip

 Time to experiment with Cygwin 1.7

 I know the whole package is still considered test.  How stable is the
 actual dll(s).  Especially as relates to this type of functionality.

 Difficult to say since this functionality isn't on a typical use path
 and no specific efforts have been made to 'integrate' it into Cygwin,
 whatever form that integration might take.  What is clear, however, is if
 there is a problem using this functionality in 1.7, now would be the time
 to find out.  Since the 1.7 DLL is near its final form for release, any
 hope of fixing problems before the release requires that they be found
 first.

Okay,  (trouble report, see the end of the email.  Successes first :)

I've got the latest 1.7 release.  I'm testing right now on Vista Home.

Just as an FYI, this machine has 32 snapshots in place.  Going back to
Thanksgiving.  All of these were created automatically by Vista.  I
don't think I did any config work etc. to make it happen.

I can see these from the Vista Command Prompt by running vssadmin
list shadows.

Very cool.

dd seems to be working great, but I've only done a couple quick tests.

dd if=global-device-path | od -cv | less

is showing what looks like good data.

I tried the same with snapshot instance 33.  As hoped dd came back
with an error message since that snapshot does not exist.

I currently have 5 dd's running against 5 different snapshots and the
output going to /dev/null.Per task manager all are actively
reading data.  Very cool.  They are reading very slowly, but then
again I'm beating the heck out of the drive.

I tried the dosdev trick from one of the links to mount the snapshot
as V:.  Apparently that is a XP only trick.  Or at least Vista does
not have it.

From the Vista command prompt I can do:
mklink /d C:\shadow_copy21 \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy21\

and then cd into that directory and see my old snapshot data.  I can
also see it from the Vista file explorer.

From cygwin's shell if I try to do so I get:
$ cd /cygdrive/c/shadow_copy21
bash: cd: /cygdrive/c/shadow_copy21: No such file or directory

I assume that should work?

Thanks
Greg
-- 
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Re: special name for vss shadow copy device?

[Greg Freemyer]

On Wed, Feb 25, 2009 at 8:44 PM, Larry Hall (Cygwin)
reply-to-list-only...@cygwin.com wrote:
 Greg Freemyer wrote:

 On Wed, Feb 25, 2009 at 6:01 PM, Larry Hall (Cygwin)
 reply-to-list-only...@cygwin.com wrote:

 Greg Freemyer wrote:
 snip

 Time to experiment with Cygwin 1.7

 I know the whole package is still considered test.  How stable is the
 actual dll(s).  Especially as relates to this type of functionality.

 Difficult to say since this functionality isn't on a typical use path
 and no specific efforts have been made to 'integrate' it into Cygwin,
 whatever form that integration might take.  What is clear, however, is if
 there is a problem using this functionality in 1.7, now would be the time
 to find out.  Since the 1.7 DLL is near its final form for release, any
 hope of fixing problems before the release requires that they be found
 first.

 Okay,  (trouble report, see the end of the email.  Successes first :)

 I've got the latest 1.7 release.  I'm testing right now on Vista Home.

 Just as an FYI, this machine has 32 snapshots in place.  Going back to
 Thanksgiving.  All of these were created automatically by Vista.  I
 don't think I did any config work etc. to make it happen.

 I can see these from the Vista Command Prompt by running vssadmin
 list shadows.

 Very cool.

 dd seems to be working great, but I've only done a couple quick tests.

 dd if=global-device-path | od -cv | less

 is showing what looks like good data.

 I tried the same with snapshot instance 33.  As hoped dd came back
 with an error message since that snapshot does not exist.

 I currently have 5 dd's running against 5 different snapshots and the
 output going to /dev/null.    Per task manager all are actively
 reading data.  Very cool.  They are reading very slowly, but then
 again I'm beating the heck out of the drive.

 I tried the dosdev trick from one of the links to mount the snapshot
 as V:.  Apparently that is a XP only trick.  Or at least Vista does
 not have it.

 From the Vista command prompt I can do:
 mklink /d C:\shadow_copy21
 \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy21\

 and then cd into that directory and see my old snapshot data.  I can
 also see it from the Vista file explorer.

 From cygwin's shell if I try to do so I get:
 $ cd /cygdrive/c/shadow_copy21
 bash: cd: /cygdrive/c/shadow_copy21: No such file or directory

 I assume that should work?

 Dunno.  I can't get the 'cd' or 'dir' to work from the Vista command
 prompt.  For me, 'dir foo' (I named the link 'foo') gives me 'File Not
 Found'.  So in my case, what you see from Cygwin makes sense since it's
 consistent with what Windows tells me.

Very strange mklink created usable directories for me on both Vista
Home and Win 2008.  Can you or someone else test it on another
machine?

ie. Cygwin need not be installed to test this Windows feature.

Greg
-- 
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Litigation Triage Solutions Specialist
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special name for vss shadow copy device?

[Greg Freemyer]

All,

I'm familiar with http://www.cygwin.com/cygwin-ug-net/using-specialnames.html

But it only shows the \device\hardisk mappings.

Are there also mapppings for the shadow devices.
(http://en.wikipedia.org/wiki/Shadow_Copy)

ie.
\Device\HarddiskVolumeShadowCopy4
or
\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy4

If your running Vista or Win2008 you can create a shadow copy device
by going to the file explorer, right clicking on a local NTFS drive,
clicking properties, then the shadow copies tab, then create now.

To get the instance number (4 above) you go to the command line and
type vssadmin list shadows.

In theory I should be able to mount that under cygwin and access my
snapshot-ed filesystem.

My personal desire is make a full dd copy of a snapshot onto a external drive.

ie. dd if=/dev/sd-shadowcopy4 of=my_image_file

Thanks
Greg
-- 
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Litigation Triage Solutions Specialist
http://www.linkedin.com/in/gregfreemyer
First 99 Days Litigation White Paper -
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Re: file name too long

[Greg Freemyer]

On Tue, Feb 24, 2009 at 4:27 PM, Tim McDaniel t...@panix.com wrote:
 On Tue, 24 Feb 2009, Paul Cantalupo hey, I remembers to expunge
 this! wrote:

 tar:
 S1172_Spanish_Protin_Total_Nucleic_Acid/S1172_Spanish_Protin_Total_Nucleic_Acid.fa.cdhit_out.masked.goodSeq_HGblast/S1172_Spanish_Protin_Total_Nucleic_Acid.fa.cdhit_out.masked.goodSeq_file7.HGblast.out:
 Cannot open: File name too long

 This name is only 201 chars long; I thought Windows max file length
 was 255.

 I have a vague memory that the limit includes the current directory
 path.  Anyone else know whether that's true or not?

The issue is definitely an issue with the full path length.  There may
also be a max filename length, but I have not come across it.

 Is there a workaround to this problem other than installing Linux?


Since your just trying to extract a tar file, create a directory
c:/a then cd into it and try to extract from there.  We use that
trick fairly often.

Greg
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Litigation Triage Solutions Specialist
http://www.linkedin.com/in/gregfreemyer
First 99 Days Litigation White Paper -
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Re: [CFT] libtool on nix-cygwin cross, with wine

[Greg Freemyer]

On Tue, Feb 24, 2009 at 4:35 PM, rhubbell rhubb...@ihubbell.com wrote:
 On Tue, 24 Feb 2009 16:15:33 -0500
 Greg Chicares wrote:
 By the way, this list discourages full quoting:
   http://www.cygwin.com/acronyms/#TOFU

 Ok, this is one neurotic list.

A lot of Linux mailing lists have that policy.  Especially if it is
high volume or has a large subscriber base.  The idea is that someone
can read a single email and understand it without having to bounce all
over the place.


Greg
-- 
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Litigation Triage Solutions Specialist
http://www.linkedin.com/in/gregfreemyer
First 99 Days Litigation White Paper -
http://www.norcrossgroup.com/forms/whitepapers/99%20Days%20whitepaper.pdf

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Re: MS offers Services For Unix free of charge

[Greg Freemyer]

On Wed, 2004-01-14 at 20:35, Brian Dessent wrote:
 Christopher Faylor wrote:
 
  One thing that Cygwin does lack, and SFU has, is an NFS client :-/
  I know that alone will probably entice me into taking a look at
  SFU.
  
  It would be rather interesting to add nfs to cygwin.  We could develop
  filesystem plug-ins which could be generalized for stuff like NFS,
  EXTFS, etc.
  
  Didn't someone say they had a free month?  Perfect project.  :-)
 
 Ooh, ooh!  Somebody port KDE's Kioslave feature to Cygwin.  Then I'll
 finally be able to mount as a drive letter that ISO9660 image on my
 remote Appletalk share that's tunneled through ssh through a http proxy
 on my IP-over-carrier pigeon link.
 
 Brian
 
With carrier pigeon 1.0, the beak is so small you have to
dis-assemble/re-assemble the IP packets.

Carrier pigeon 2.0 has a bigger beak and can hold a full packet.

Unfortunately the evolutionary process is goin slow.  Maybe within a
couple of millenium.

Have you thought about using IP-over-turkey instead?  

It is slower and not very sexy, but with the bigger beak, you can get
better bandwidth.

Greg




 


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Thanks and a question

[Greg Freemyer]

Harold,

Your work on the clipboard with xdmcp capability is greatly
appreciated.  

From my minimal testing it works great.  

Now that the startup batch script can be simplified to a one liner, I
want to directly invoke Xwin -query from my desktop without first
launching a bash console.

ie. I currently launch a bash script, then run my batch script.  It
would be nice to instead just double click an icon on my desktop.

I have setup a shortcut to XWin.exe on my desktop, but it is not
working.

Currently I am getting an error about a missing DLL.  Unfortunately I
need dlls from both /cygwin/bin and /cygwin/usr/X11R6/bin, so just
changing the startup directory is not quite enough.

Is there a recommended way to get this to work?  

ie. Adding a shortcut (or a cygwin hardlink) to the cygcygipc-2.dll in
X11R6/bin 


Thanks Again
Greg
-- 
Greg Freemyer

Re: New clipboard handling notes (XFree86-xserv-4.3.0-31)

[Greg Freemyer]

Is the eventual goal of XFree86-xserv-4.3.0-31 going to be to eliminate
the need for xwinclip in xdmcp setups?

Or this something totally different.  (I only use X to login to remote
boxes.)

On Mon, 2004-01-05 at 02:40, Harold L Hunt II wrote:
 Here are my notes that I put together to convince myself that the new 
 clipboard handling was complete and would not cause infinite loops. 
 Please examine the notes if you are interested in the new code or if you 
 would like to double-check my logic for errors.
 
 Please review the steps and post to the list if you think you have found 
 an error.  Also, if you find a bug or a crash, look at these steps and 
 try to identify the approximate location of your problem so that we can 
 do a better job of debugging.
 
 Harold
 
 
 Copy in X11
 ===
 1) winProcSetSelectionOwner gets called and takes ownership of the Win32 
 clipboard (OpenClipboard, EmptyClipboard, SetClipboardData (foo, NULL)).
 
 2) Selection is owned by another X11 client (the one that called 
 XSetSelectionOwner).
 
 3) EmptyClipboard() in step #1 files WM_DRAWCLIPBOARD message, which is 
 ignored since hwnd == GetClipboardOwner ().
 
 4) Paste in X11
  a) Owning X11 client handles SelectionRequest events.
 
  b) Item is pasted within X11 without round-trip to Win32.
 
 5) Paste in Win32
  a) WM_RENDERFORMAT fires.
 
  b) SelectionRequest is sent, conversion from X11 to Win32 is done.
 
  c) SetClipboardData is called, passing converted text.
 
 6) Copy in X11 (different app)
  a) Goto Step #1.
 
 7) Copy in Win32
  a) Clipboard is emptied and owned by the other application.
 
  b) WM_DRAWCLIPBOARD fires, XSetSelectionOwner is called, owning the
  selection for the clipboard integration manager.
 
 
 Copy in Win32
 =
 1) WM_DRAWCLIPBOARD fires, calls XSetSelectionOwner for itself.
 
 2) winProcSetSelectionOwner gets called, does nothing since clipboard 
 X11 window is the window that is taking ownership.
 
 3) Paste in Win32
  a) Clipboard owning Win32 app handles GetClipboardData call.
 
  b) Item is pasted without round-trip to X11.
 
 4) Paste in X11
  a) Clipboard integration manager receives SelectionRequest.
 
  b) GetClipboardData is called, returning Win32 clipboard contents.
 
  c) Conversion from Win32 to X11 is done and text is pasted.
 
 5) Copy in X11
  a) winProcSetSelectionOwner is called.
 
  b) Clipboard integration manager takes ownership of Win32 clipboard.
 
  c) WM_DRAWCLIPBOARD fires and is ignored since hwnd ==
  GetClipboardOwner ().
 
 6) Copy in Win32 (different app)
  a) Goto Step #1.

Re: cut and paste xfree - windows

[Greg Freemyer]

On Thu, 2004-01-01 at 13:28, Alexander Gottwald wrote:
 [EMAIL PROTECTED] wrote:
 
  Harold L Hunt II wrote :
  For all practical purposes, -clipboard does not work when using XDMCP.
  Is there any change about ?
 
 use xwinclip.
 
 
 NP: Letzte Instanz - Glockenrequiem

I saw this and the thread with Chris Green, and like Chris I still
don'know what to do.

Is there a write-up that explicitely describes the setup and use of
xwinclip with xdmcp? 

I tried:

XWin.exe -query my_server 

Use the X window to login in to my_server, launch x-term

From X-windows x-term 
# xhost 127.0.0.1
127.0.0.1 being added to access control list

From cygwin window: (the first time I tried it failed)
$ DISPLAY=:0.0 xwinclip
UnicodeSupport - Windows NT/2000/XP
GetClipboardData () failed: 

Then I tried 'DISPLAY=:0.0 xwinclip' again from cygwin window, and it
appears to be working, but not cosistently, or else I don't know what
causes the clipboard to move back and forth between Win2K and X-server.

Thanks for any help,
Greg
-- 
Greg Freemyer

Re: Not getting login using xdmcp

[Greg Freemyer]

I had a similar problem last summer with SUSE 8.2 and then current
cygwin/XFree86.

In my case I upgraded to a then current cygwin/XFree86 setup.

   XDMCP seemed broken

2 weeks later I upgraded again.  (Several related updates.)

   XDMCP was working

I have since upgraded to SUSE 9.0, so I can't tell you for sure how I
had things configured.

If I were you I would start out by making sure you have the current
release of everything cygwin/XFree86.


On Mon, 2003-12-29 at 18:06, Andrew DeFaria wrote:
 Now that Christmas is over I'd like to address this problem again. Let's 
 recap.
 
 I have a SuSE 8.2 installation. I am attempting to use Cygwin/XFree86 to 
 start an X session using XDMCP. XDMCP is not on by default so I have 
 performed the following changes:
 
 * Enabled XDMCP in /opt/kde3/share/config/kdm/kdmrc by setting
   Enable=true for the [Xdmcp] section.
 * Modified /etc/X11/xdm/xdm-config to comment out
   DisplayManager.requestPort by putting a ! in the first character.
 * Uncommented the * line in /etc/X11/xdm/Xaccess and
   /opt/kde3/share/config/kdm/Xaccess. Note there are two different
   lines in each file. The difference seems to be one is of the form
   of * CHOOSER BROADCAST and just the plain *. I've tried all
   combinations to no avail.
 * I have only one NIC.
 * I've tried xwin -query sonslinux -from adefaria, same problem.
 * Sonslinux sits right next to me and I can login using KDE just
   fine on the console - I just can't get a remote X session from my
   XP box to put up a chooser.
 * XWin.log always seems to indicate XDM: too many retransmissions
   as the problem (Sample XWin.log attached). Note that XDM: too many
   retransmissions only shows up after waiting for a while.
 * Nothing listed in /var/log/messages nor /var/log/kdm.log on sonslinux.
 
 In all cases, after making a configuration change I restart kdm.
 
 Help!

Really big files?

[Greg Freemyer]

I just tried to dd the first 163 GB of a raw drive to a image file.

It failed at about 145 GB.  Should it work?

I had plenty of free space.  

I'm using cygwin.dll ver. 1.5.5 and a recent dd  (I think, see cygcheck -s output).

=== Session Log
$ mount -f -b //./physicaldrive2 /dev/todds

[EMAIL PROTECTED] ~
$ dd if=/dev/todds of=/cygdrive/e/full_image bs=4k count=44430720 conv=noerror,
sync
dd: writing `/cygdrive/e/full_image': Permission denied
35838209+0 records in
35838208+0 records out

[EMAIL PROTECTED] ~
$ cd e:

[EMAIL PROTECTED] /cygdrive/e
$ ls -l full*
-rw-r--r--1 BruceNone 146793299968 Dec 15 17:27 full_image

[EMAIL PROTECTED] /cygdrive/e
$ df .
Filesystem   1k-blocks  Used Available Use% Mounted on
e:   199141708 144271044  54870664  73% /cygdrive/e

 cygcheck -s output attached

Thanks
Greg
-- 
Greg Freemyer

Cygwin Win95/NT Configuration Diagnostics
Current System Time: Mon Dec 15 19:35:04 2003

Windows 2000 Professional Ver 5.0 Build 2195 

Path:   C:\cygwin\usr\local\bin
C:\cygwin\bin
C:\cygwin\bin
C:\cygwin\usr\X11R6\bin
c:\WINNT2\system32
c:\WINNT2
c:\WINNT2\System32\Wbem
c:\Program Files\PKWARE\PKZIPWS\
c:\WINNT2\system32
c:\WINNT2
c:\WINNT2\System32\Wbem
c:\Program Files\UltraEdit

Output from C:\cygwin\bin\id.exe (nontsec)
UID: 1000(Bruce) GID: 513(None)
513(None)

Output from C:\cygwin\bin\id.exe (ntsec)
UID: 1000(Bruce) GID: 513(None)
513(None)544(Administrators)  
545(Users)

SysDir: C:\WINNT2\System32
WinDir: C:\WINNT2

HOME = `C:\cygwin\home\Bruce'
MAKE_MODE = `unix'
PWD = `/cygdrive/e'
USER = `Bruce'

Use `-r' to scan registry

a:  fd  FAT1Mb  57% CPUN   
c:  hd  FAT32  29988Mb  16% CPUN   FORENSICHDD
d:  cd   N/AN/A
e:  hd  NTFS   194474Mb  73% CP CS UN PA FC New Volume
g:  net NTFS   388956Mb  85% CP CS UN PA FC F-Images
i:  net NTFS   388956Mb  85% CP CS UN PA FC F-Images
l:  net  N/AN/A
p:  net NTFS   112000Mb  91% CP CS UN PA FC Programs
r:  net  N/AN/A

C:\cygwin   /   system  binmode
\\.\physicaldrive2  /dev/todds  system  binmode
C:\cygwin/bin   /usr/binsystem  binmode
C:\cygwin/lib   /usr/libsystem  binmode
.   /cygdrive   system  binmode,cygdrive

Found: C:\cygwin\bin\awk.exe
Found: C:\cygwin\bin\bash.exe
Found: C:\cygwin\bin\cat.exe
Found: C:\cygwin\bin\cp.exe
Not Found: cpp (good!)
Found: C:\cygwin\bin\find.exe
Not Found: gcc
Not Found: gdb
Found: C:\cygwin\bin\grep.exe
Not Found: ld
Found: C:\cygwin\bin\ls.exe
Not Found: make
Found: C:\cygwin\bin\mv.exe
Found: C:\cygwin\bin\rm.exe
Found: C:\cygwin\bin\sed.exe
Found: C:\cygwin\bin\sh.exe
Found: C:\cygwin\bin\tar.exe

   19k 2003/03/22 C:\cygwin\bin\cyggdbm.dll
   28k 2003/07/20 C:\cygwin\bin\cyggdbm-3.dll
   15k 2003/07/20 C:\cygwin\bin\cyggdbm_compat-3.dll
   30k 2003/08/11 C:\cygwin\bin\cyggdbm-4.dll
   15k 2003/08/11 C:\cygwin\bin\cyggdbm_compat-4.dll
   12k 2003/08/10 C:\cygwin\bin\cyggettextpo-0.dll
   69k 2003/08/10 C:\cygwin\bin\cyggettextlib-0-12-1.dll
  134k 2003/08/10 C:\cygwin\bin\cyggettextsrc-0-12-1.dll
  958k 2003/08/10 C:\cygwin\bin\cygiconv-2.dll
   22k 2001/12/13 C:\cygwin\bin\cygintl-1.dll
   37k 2003/08/10 C:\cygwin\bin\cygintl-2.dll
   45k 2001/04/25 C:\cygwin\bin\cygform5.dll
   26k 2001/04/25 C:\cygwin\bin\cygmenu5.dll
  156k 2001/04/25 C:\cygwin\bin\cygncurses++5.dll
  226k 2001/04/25 C:\cygwin\bin\cygncurses5.dll
   15k 2001/04/25 C:\cygwin\bin\cygpanel5.dll
   35k 2002/01/09 C:\cygwin\bin\cygform6.dll
   20k 2002/01/09 C:\cygwin\bin\cygmenu6.dll
  175k 2002/01/09 C:\cygwin\bin\cygncurses++6.dll
  202k 2002/01/09 C:\cygwin\bin\cygncurses6.dll
   12k 2002/01/09 C:\cygwin\bin\cygpanel6.dll
   48k 2003/08/09 C:\cygwin\bin\cygform7.dll
   29k 2003/08/09 C:\cygwin\bin\cygmenu7.dll
  224k 2003/08/09 C:\cygwin\bin\cygncurses7.dll
   19k 2003/08/09 C:\cygwin\bin\cygpanel7.dll
   63k 2003/04/11 C:\cygwin\bin\cygpcre.dll
   61k 2003/04/11 C:\cygwin\bin\cygpcreposix.dll
   17k 2001/06/28 C:\cygwin\bin\cyghistory4.dll
  108k 2001/06/28 C:\cygwin\bin\cygreadline4.dll
   29k 2003/08/10 C:\cygwin\bin\cyghistory5.dll
  148k 2003/08/10 C:\cygwin\bin\cygreadline5.dll
   60k 2003/08/09 C:\cygwin\bin\cygz.dll
  949k 2003/09/20 C:\cygwin\bin\cygwin1.dll
Cygwin DLL version info:
DLL version: 1.5.5
DLL epoch: 19
DLL bad signal mask: 19005
DLL old termios: 5
DLL malloc env: 28
API major: 0
API minor: 94
Shared data: 3
DLL identifier: cygwin1
Mount registry: 2
Cygnus registry name: Cygnus Solutions
Cygwin registry name: Cygwin
Program options name: Program Options
Cygwin mount registry name: mounts v2
Cygdrive flags: cygdrive flags
Cygdrive prefix

Re: Really big files?

[Greg Freemyer]

On Tue, 2003-12-16 at 16:41, Don Koch wrote:
 Greg Freemyer said:
  I just tried to dd the first 163 GB of a raw drive to a image file.
  It failed at about 145 GB.  Should it work?
  I had plenty of free space.   
 
 Another possibility is addressed at:
 
 http://www.jsiinc.com/SUBL/tip5500/rh5584.htm
 
 (Something justed gleaned off of the samba list.)
 
That appears to be related to open file handling in ntbackup.

I don't think it would be relevant.

I'm doing a pretty dumb dd command, Not a intellegent Open File Backup
type of thing.

Greg


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Re: Really big files?

[Greg Freemyer]

On Tue, 2003-12-16 at 16:19, Brian Dessent wrote:
 Greg Freemyer wrote:
 
  I just tried to dd the first 163 GB of a raw drive to a image file.
  
  It failed at about 145 GB.  Should it work?
  
  I had plenty of free space.
  
  I'm using cygwin.dll ver. 1.5.5 and a recent dd  (I think, see cygcheck -s output).
  
  === Session Log
  $ mount -f -b //./physicaldrive2 /dev/todds
 
 Just a completely random guess here:  Is 'physicaldrive2' an active
 system drive?  IIRC there are some parts of windows that cannot be read
 by anything but the kernel itself, such as the SAM database (or
 something along those lines.)  If this is the case then you'd have to do
 the image when the partition is not active.  I don't know how or if
 tools like Ghost get around this.
 
 Brian

No, it is not an active system drive.  By chance this drive had its
partition table blown away.  Win2k is not even assigning it a drive
letter.

Also, if you look at the dd output

 
dd: writing `/cygdrive/e/full_image': Permission denied
35838209+0 records in
35838208+0 records out


You see that the failure was on the write, not on the read.

I have over 50 GB free even with that file in place, so I'm definately
not short of space.

Also, I believe NTFS for Win2k has a 2 TB filesize max., so that should
not be a problem.

Greg




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Re: Really big files?

[Greg Freemyer]

If I wanted to troubleshoot this, how would I do it?

I imagine strace would produce an unbelievable amount of output.  ie. dd
fails after 35 million read/write pairs.

Also, what package is dd in?

If I do try this I will only be able to make one debug pass per day
because of how slow the dd runs.  (ie. several hours)

Greg

On Tue, 2003-12-16 at 19:30, Greg Freemyer wrote:
 On Tue, 2003-12-16 at 16:19, Brian Dessent wrote:
  Greg Freemyer wrote:
  
   I just tried to dd the first 163 GB of a raw drive to a image file.
   
   It failed at about 145 GB.  Should it work?
   
   I had plenty of free space.
   
   I'm using cygwin.dll ver. 1.5.5 and a recent dd  (I think, see cygcheck -s 
   output).
   
   === Session Log
   $ mount -f -b //./physicaldrive2 /dev/todds
  
  Just a completely random guess here:  Is 'physicaldrive2' an active
  system drive?  IIRC there are some parts of windows that cannot be read
  by anything but the kernel itself, such as the SAM database (or
  something along those lines.)  If this is the case then you'd have to do
  the image when the partition is not active.  I don't know how or if
  tools like Ghost get around this.
  
  Brian
 
 No, it is not an active system drive.  By chance this drive had its
 partition table blown away.  Win2k is not even assigning it a drive
 letter.
 
 Also, if you look at the dd output
 
  
 dd: writing `/cygdrive/e/full_image': Permission denied
 35838209+0 records in
 35838208+0 records out
 
 
 You see that the failure was on the write, not on the read.
 
 I have over 50 GB free even with that file in place, so I'm definately
 not short of space.
 
 Also, I believe NTFS for Win2k has a 2 TB filesize max., so that should
 not be a problem.
 
 Greg
 
 
 
 
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Re: XWin --query

[Greg Freemyer]

On Thu, 2003-10-16 at 12:28, Greg Freemyer wrote:
 On Wed, 2003-10-15 at 16:49, Sylvain Petreolle wrote:
  Just to be sure: are you using the correct option :
  XWin -query dmcphost  (good)
  
   not
  
  XWin --query dmcphost (bad) ?
 
 I invoke this via a shell script, and yes the script had a single -.
 
 Greg
 

I upgraded to the latest cygwin xfree-bin and xfree-progs.

All works again.  Must have been a problem relating to the cygwin 1.5
transition.

Greg

Re: XWin --query

[Greg Freemyer]

On Wed, 2003-10-15 at 16:49, Sylvain Petreolle wrote:
 Just to be sure: are you using the correct option :
 XWin -query dmcphost  (good)
 
  not
 
 XWin --query dmcphost (bad) ?

I invoke this via a shell script, and yes the script had a single -.

Greg

Re: XWin --query

[Greg Freemyer]

I have not installed any new hardware, and both server and client
machines have only one NIC.  (Both are standard wired NICs.)

I did update the Linux box with the latest patches recently, that may be
causing the problem, but somehow I think it is the cygwin/xfree86 end.

Greg
-- 
Greg Freemyer

On Fri, 2003-10-10 at 20:15, Harold L Hunt II wrote:
 Did you also just get a wireless networking card or another network 
 card?  The reason I am asking is that you may now need to use the -from 
 parameter to indicate the return address that should be sent to the 
 remote machine.  Please indicate if you have only one network card.
 
 Harold
 
 Greg Freemyer wrote:
  I have been using XWin --query node_name for a while.
  
  Last week I updated to the currently released cygwin and xfree86
  binaries.
  
  The XWin --query is now only bringing up a X display, but it is not
  showing the KDM login screen I'm used to seeing.
  
  If I look on the Linux box I'm querying, I see that it is trying to
  connect back to the cygwin/xfree box, but it is unable to open the
  display.
  
  Do I need to do somethnig else?
  
  Greg
 

Re: XWin --query

[Greg Freemyer]

On Mon, 2003-10-13 at 13:14, Pavel Rosenboim wrote:
 Greg Freemyer wrote:
 
  I have not installed any new hardware, and both server and client
  machines have only one NIC.  (Both are standard wired NICs.)
  
  I did update the Linux box with the latest patches recently, that may be
  causing the problem, but somehow I think it is the cygwin/xfree86 end.
 
 Is it possible that kdm configuration got overwritten, and now it does 
 not allow connections from remote hosts?
 
 Pavel.
 

I have used ethereal on the linux box to monitor the tcp/ip traffic.

The remote connection is allowed, but when the linux box tries to
connect back to the cygwin/xfree86 box, its messages seem to be ignored.

I am not running any kind of firewall on the cygwin/xfree86 box and they
are on a common LAN.

It seems almost like I need to issue a 'xhosts +node' on the cygwin box,
but I have not done that in the past and the cygwin box is not rejecting
the linux box, it is just ignoring it from what I see.

Has there been a security change that now requires xhosts +node to be
run somehow with the XWin --query command?

Greg
-- 
Greg Freemyer

XWin --query

[Greg Freemyer]

I have been using XWin --query node_name for a while.

Last week I updated to the currently released cygwin and xfree86
binaries.

The XWin --query is now only bringing up a X display, but it is not
showing the KDM login screen I'm used to seeing.

If I look on the Linux box I'm querying, I see that it is trying to
connect back to the cygwin/xfree box, but it is unable to open the
display.

Do I need to do somethnig else?

Greg
-- 
Greg Freemyer

Re: Change Window Manager

[Greg Freemyer]

The simpliest way to start KDE is to just forget about the way you
currently start cygwin,XFree86, and twm.

Instead just click start---programs---KDE-cygwin

No typing required.

Greg
-- 
Greg Freemyer

On Tue, 2003-07-15 at 11:56, Charles E. Cooper wrote:
 OK,
 I'm not a cygwin expert, but use it to window into a solar machine for 
 editting.
 
 I dislike the twm window manager as it doesn't let me change focus unless 
 you click on the top of the window bar, which often gets buried when I have 
 numerous windows open.
 
 I've been trying to experiment with another window manager, KDE, but 
 haven't figured out where twm is started up.
 
 I edited the .xinitrc file and the startx.1 file without changing anything.
 
 I usually start CYGWIN under Windows 2000 and then type startx to bring 
 up the window manager.
 
 Can anyone give me some guidance on this?
 
 Chuck
 
 Charles E. Cooper
 Applied Research Laboratory
 The Pennsylvania State University
 (814) 865-6829 (Swift Office)
 (814) 865-2020
 [EMAIL PROTECTED]
 

yast2

[Greg Freemyer]

I run KDE locally on my win2k desktop.

I often ssh -X over to a SuSE box and run evolution.  It works well.

I just tried running yast2 on the SuSE box, and it fails with:

===
# yast2
X Error: BadRequest (invalid request code or no such operation) 1
  Major opcode:  149
  Minor opcode:  4
  Resource id:  0x36
Xlib:  extension XInputExtension missing on display localhost:11.0.
Failed to get list of devices
Xlib:  extension XInputExtension missing on display localhost:11.0.

After the above, a basically blank window opens and hangs.

I also tried setting the DISPLAY variable to directly use my screen,
same problem.

Should this work?

Or am I hoping for too much?

TIA
Greg
-- 
Greg Freemyer

associations (remote??)

[Greg Freemyer]

I currently run cygwin/XFree86/KDE on my Win2K machine.

I then 'ssh -X' over to a Linux box and run evolution.

That works great most of the time.

I can also run the konqueror directly on my PC, or remotely on the Linux
box.

If an e-mail has a url in it, I can cut and paste the url to konqueror
and it works fine.

My problem is I can't right click on the url and cause it to open
konqueror.

I don't even know where it should run.

Do I need to setup some associations?  If so, how and where?

Thanks
Greg
-- 
Greg Freemyer

What is a good Windows Manager for cygwin/XFree86

[Greg Freemyer]

I want to find a basic windows manager the supports:

   resize, move, minimize, maximize

Seems like a pretty basic request, but I have tried twm, mwm, and fvwm2.

fvwm2 is the most functional for me, but it does not have min/max.

What windows manager provides the above in a cygwin/XFree86 env.


Thanks
Greg
-- 
Greg Freemyer

cygwin licensing [was: [re: tar and gzip]]

[Greg Freemyer]

Good write-up.

Is any portion of cygwin covered by the LGPL instead of the GPL?

http://www.gnu.org/copyleft/lesser.html

The LGPL explicitly allows proprietary software to be built on top of opensource 
libraries.

TIA
Greg
-- 
Greg Freemyer

 Hi all!

 I wrote a small script in Python, but it requires two programs to run
 correctly: tar.exe and gzip.exe. Both are in CygWin package.
And that's my
 question: can I bundle both programs and cygwin1.dll with my script?
Script
 is free, but the program that the script comes with is not.

 --
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 [EMAIL PROTECTED]  | Network Administrator - BAFH
 http://www.ps.nq.pl/pcfaq/ | http://www.ps.nq.pl/nelchael/

These are just my thoughts and I'm not a lawyer.
   
It doesn't sound like your proprietary program is derived from or based
   on
any Cygwin source code.  Does it execute the Python script which
   executes
tar.exe?  If it does, I don't think even that would put it under the
   GPL.
The GPL states that the act of running the Program is not restricted.
Your program can execute Cygwin binaries without it becoming GPL
   software.
   
If you link to Cygwin source code, then your program would be a
   derivative
work under the GPL.  However, I believe you could also link to another
proprietary third party library without providing it's source code.  For
instance, you could link to a Microsoft library without being required
   to
provide Microsoft source code.

   This is not true. It is ok to link with certain Microsoft DLLs because the
   GPL makes the following exception:
   However, as a special exception, the source code distributed need not
   include anything that is normally distributed (in either source or
   binary form) with the major components (compiler, kernel, and so on)
   of
   the operating system on which the executable runs, unless that
   component itself accompanies the executable.
   However this exception does not apply to other DLLs, only those considered
   part of the operating system.

   
Going one step further, you could put your proprietary code into a
standalone DLL built using Microsoft tools.  You could market the DLL as
   a
separate product.  The DLL would have no dependencies on any Cygwin
   source
or binary.  Your Cygwin based application could us it just like any
   other
third party library without providing source code for the DLL.  I
don't see
GPL language that would prevent this.

   From the GPL FAQ
   (http://www.gnu.org/licenses/gpl-faq.html#LinkingWithGPL):

   You have a GPL'ed program that I'd like to link with my code to build a
   proprietary program. Does the fact that I link with your program mean I
   have
   to GPL my program?
   Yes.

   and:

   What is the difference between mere aggregation and combining two
   modules
   into one program?
   Mere aggregation of two programs means putting them side by side on
   the
   same CD-ROM or hard disk. We use this term in the case where they are
   separate programs, not parts of a single program. In this case, if one of
   the programs is covered by the GPL, it has no effect on the other program.

   Combining two modules means connecting them together so that they form
   a
   single larger program. If either part is covered by the GPL, the whole
   combination must also be released under the GPL--if you can't, or won't,
   do
   that, you may not combine them.

   What constitutes combining two parts into one program? This is a legal
   question, which ultimately judges will decide. We believe that a proper
   criterion depends both on the mechanism of communication (exec, pipes,
   rpc,
   function calls within a shared address space, etc.) and the semantics of
   the
   communication (what kinds of information are interchanged).

   If the modules are included in the same executable file, they are
   definitely combined in one program. *** - If modules are designed to
   run linked together in a shared address space, that almost surely means
   combining them into one program. - ***

   By contrast, pipes, sockets and command-line arguments are
   communication
   mechanisms normally used between two separate programs. So when they are
   used for communication, the modules normally are separate programs. But if
   the semantics of the communication are intimate enough, exchanging complex
   internal data structures, that too could be a basis to consider the two
   parts as combined into a larger program.

   and:

   I'd like to incorporate GPL-covered software in my proprietary system. Can
   I
   do this?
   You cannot incorporate GPL-covered software in a proprietary system.
   The
   goal of the GPL is to grant everyone the freedom to copy, redistribute,
   understand, and modify a program. If you could incorporate GPL-covered
   software into a non-free system

re[2]: Building a win32 python extension from cygwin?

[Greg Freemyer]

   Greg,

   On Tue, Mar 18, 2003 at 06:46:01PM -0500, Greg Freemyer wrote:
Thanks,

   No problem.

I got the tutorial to work.

   Which one?

http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/82826

I had to google for the dll2def package.

I found it at:

http://users.ncrvnet.nl/gmvdijk/packages.html#DLL2DEF

Other than that and changing python21 to python22 everywhere in the instructions it 
went fine.

   Jason

Greg

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re[2]: Building a win32 python extension from cygwin?

[Greg Freemyer]

   Greg,

   Note my experience building Win32 Python extensions is *very* limited.
   It is mainly limited to building the readline module every year or so
   when the next major version of Python is released...

   BTW, you may have better luck on the Python or Distutils list.

   On Mon, Mar 17, 2003 at 05:51:33PM -0500, Greg Freemyer wrote:
I want to use a python deployment program like installer to package it
up so I don't have to install cygwin/python on all my servers.

   What is installer?

A packaging solution that allows python apps to be deployed without having to deploy 
python itself.

http://www.mcmillan-inc.com/install1.html

I tried it in my cygwin env.  The process went smooth and I ended up with a single 
.exe file that supposedly would allow the app to install in any Win2K env.

Unfortunately the actual process of installing my app failed, and per

http://trixie.triqs.com/pipermail/installer/2003-March/000266.html

there is currently a compatibility issue between installer/cygwin/python.

BTW: Jason, you are mentioned as the cygwin/python expert who might be able to resolve 
the conflict.

Unfortunately, installer is apparently broken for cygwin currently.

   What is broken?

The above e-mail describes one problem.

My problem was that libpython2.2.dll could not be found in the specified path.

That does not make any sense because the exe was supposed to be self contained and not 
assume any pre-existing cygwin/python dlls.

I would have pursued this, but when I read the earlier e-mail, I just dropped the idea 
of using installer.

Unfortunately the import command is not working due to the format of
the dll I am generating.

   Error messages?  Build command lines?

=  From a freshly started python (win32 IDLE)
Python 2.2.2 (#37, Oct 14 2002, 17:02:34) [MSC 32 bit (Intel)] on win32
Type copyright, credits or license for more information.
IDLE 0.8 -- press F1 for help
 import _librsync
Traceback (most recent call last):
  File pyshell#0, line 1, in ?
import _librsync
ImportError: DLL load failed: The specified module could not be found.
=

If I try importing a totally non-existent dll, I get a different error message, so it 
is finding the dll.

 With a non-existent dll
 import _asdf
Traceback (most recent call last):
  File pyshell#1, line 1, in ?
import _asdf
ImportError: No module named _asdf
=

I've done a bunch of googling, but I can't find any straight forward
instructions on what is needed for this to all work out.

   I found the following via Google:

   http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/82826
   http://www.python.org/doc/current/inst/non-ms-compilers.html

I will look at those.  The first one looks like what I want.

   Are you using the --compiler=mingw32 option?  For example:

   $ python setup.py build --compiler=mingw32

No I wasn't.

Does anyone know where this is documented?

Thanks

   See above.

   Jason

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re[3]: Building a win32 python extension from cygwin?

[Greg Freemyer]

Jason,

Thanks, I got the tutorial to work.

Now I have to port the cygwin C code I have to Win32.

From C code, how do I know if I'm compiling for win32 vs. cygwin?

#ifdef MS_WIN32

seems to be true for both.  (I'm not totally sure I understand my environment now that 
I have run the tutorial. )

Greg

 Greg,

 Note my experience building Win32 Python extensions is *very*
   limited.
 It is mainly limited to building the readline module every year or so
 when the next major version of Python is released...

 BTW, you may have better luck on the Python or Distutils list.

 On Mon, Mar 17, 2003 at 05:51:33PM -0500, Greg Freemyer wrote:
  I want to use a python deployment program like installer to package
   it
  up so I don't have to install cygwin/python on all my servers.

 What is installer?

   A packaging solution that allows python apps to be deployed without having
   to deploy python itself.

   http://www.mcmillan-inc.com/install1.html

   I tried it in my cygwin env.  The process went smooth and I ended up with
   a single .exe file that supposedly would allow the app to install in any
   Win2K env.

   Unfortunately the actual process of installing my app failed, and per

   http://trixie.triqs.com/pipermail/installer/2003-March/000266.html

   there is currently a compatibility issue between installer/cygwin/python.

   BTW: Jason, you are mentioned as the cygwin/python expert who might be
   able to resolve the conflict.

  Unfortunately, installer is apparently broken for cygwin currently.

 What is broken?

   The above e-mail describes one problem.

   My problem was that libpython2.2.dll could not be found in the specified
   path.

   That does not make any sense because the exe was supposed to be self
   contained and not assume any pre-existing cygwin/python dlls.

   I would have pursued this, but when I read the earlier e-mail, I just
   dropped the idea of using installer.

  Unfortunately the import command is not working due to the format
   of
  the dll I am generating.

 Error messages?  Build command lines?

   =  From a freshly started python (win32 IDLE)
   Python 2.2.2 (#37, Oct 14 2002, 17:02:34) [MSC 32 bit (Intel)] on win32
   Type copyright, credits or license for more information.
   IDLE 0.8 -- press F1 for help
import _librsync
   Traceback (most recent call last):
   File pyshell#0, line 1, in ?
   import _librsync
   ImportError: DLL load failed: The specified module could not be found.
   =

   If I try importing a totally non-existent dll, I get a different error
   message, so it is finding the dll.

    With a non-existent dll
import _asdf
   Traceback (most recent call last):
   File pyshell#1, line 1, in ?
   import _asdf
   ImportError: No module named _asdf
   =

  I've done a bunch of googling, but I can't find any straight
   forward
  instructions on what is needed for this to all work out.

 I found the following via Google:

 http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/82826
 http://www.python.org/doc/current/inst/non-ms-compilers.html

   I will look at those.  The first one looks like what I want.

 Are you using the --compiler=mingw32 option?  For example:

 $ python setup.py build --compiler=mingw32

   No I wasn't.

  Does anyone know where this is documented?

   Thanks

 See above.

 Jason

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re[4]: Building a win32 python extension from cygwin?

[Greg Freemyer]

Stupid question -- please ignore.

   Jason,

   Thanks, I got the tutorial to work.

   Now I have to port the cygwin C code I have to Win32.

   From C code, how do I know if I'm compiling for win32 vs. cygwin?

   #ifdef MS_WIN32

   seems to be true for both.  (I'm not totally sure I understand my
   environment now that I have run the tutorial. )

   Greg

   Greg,

   Note my experience building Win32 Python extensions is *very*
 limited.
   It is mainly limited to building the readline module every year
   or so
   when the next major version of Python is released...

   BTW, you may have better luck on the Python or Distutils list.

   On Mon, Mar 17, 2003 at 05:51:33PM -0500, Greg Freemyer wrote:
I want to use a python deployment program like installer to
   package
 it
up so I don't have to install cygwin/python on all my servers.

   What is installer?

 A packaging solution that allows python apps to be deployed without
   having
 to deploy python itself.

 http://www.mcmillan-inc.com/install1.html

 I tried it in my cygwin env.  The process went smooth and I ended up
   with
 a single .exe file that supposedly would allow the app to install in
   any
 Win2K env.

 Unfortunately the actual process of installing my app failed, and per

 http://trixie.triqs.com/pipermail/installer/2003-March/000266.html

 there is currently a compatibility issue between
   installer/cygwin/python.

 BTW: Jason, you are mentioned as the cygwin/python expert who might
   be
 able to resolve the conflict.

Unfortunately, installer is apparently broken for cygwin
   currently.

   What is broken?

 The above e-mail describes one problem.

 My problem was that libpython2.2.dll could not be found in the
   specified
 path.

 That does not make any sense because the exe was supposed to be self
 contained and not assume any pre-existing cygwin/python dlls.

 I would have pursued this, but when I read the earlier e-mail, I just
 dropped the idea of using installer.

Unfortunately the import command is not working due to the
   format
 of
the dll I am generating.

   Error messages?  Build command lines?

 =  From a freshly started python (win32 IDLE)
 Python 2.2.2 (#37, Oct 14 2002, 17:02:34) [MSC 32 bit (Intel)] on
   win32
 Type copyright, credits or license for more information.
 IDLE 0.8 -- press F1 for help
  import _librsync
 Traceback (most recent call last):
 File pyshell#0, line 1, in ?
 import _librsync
 ImportError: DLL load failed: The specified module could not be
   found.
 =

 If I try importing a totally non-existent dll, I get a different
   error
 message, so it is finding the dll.

  With a non-existent dll
  import _asdf
 Traceback (most recent call last):
 File pyshell#1, line 1, in ?
 import _asdf
 ImportError: No module named _asdf
 =

I've done a bunch of googling, but I can't find any straight
 forward
instructions on what is needed for this to all work out.

   I found the following via Google:

   http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/82826
   http://www.python.org/doc/current/inst/non-ms-compilers.html

 I will look at those.  The first one looks like what I want.

   Are you using the --compiler=mingw32 option?  For example:

   $ python setup.py build --compiler=mingw32

 No I wasn't.

Does anyone know where this is documented?

 Thanks

   See above.

   Jason

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Building a win32 python extension from cygwin?

[Greg Freemyer]

All,

I have a working python app which calls a c library.

It works fine in Linux, and in a pure cygwin environment.

I want to use a python deployment program like installer to package it up so I don't 
have to install cygwin/python on all my servers.

Unfortunately, installer is apparently broken for cygwin currently.

Therefore, I'm trying to get the app to work with win32 python.

Unfortunately the import command is not working due to the format of the dll I am 
generating.

I've done a bunch of googling, but I can't find any straight forward instructions on 
what is needed for this to all work out.

Does anyone know where this is documented?

Thanks
Greg
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