* Change in 'cygstart' functionality?
@ 2016-09-13 16:31 Nem W Schlecht
2016-09-13 17:53 ` Ken Brown
0 siblings, 1 reply; 4+ messages in thread
From: Nem W Schlecht @ 2016-09-13 16:31 UTC (permalink / raw)
To: The Cygwin Mailing List
Hello all,
So, I used to be able to do this in Cygwin to open a chat session (in
my case, With Skype for Business aka S4B):
cygstart "sip:user@domain.com"
But I noticed recently that this now fails with:
Unable to start 'sipuser@domain.com': The specified file was not found.
I have no idea why the colon ":" is getting converted into an a UTF
F038 character. I'm also unsure of when this stopped working, since I
don't use it all that often.
I thought maybe having some slashes would be required, so I tried:
cygstart "sip:/user@domain.com"
Error:
Unable to start 'sip\user@domain.com': The specified file was not found.
And yes, I did cut-paste that and *yes* the direction of the slash *changed*.
With 2 slashes, a get an error in S4B that the address doesn't
exist/is incorrect.
With 3 slashes, a new chat window opens! But its with user
"///user@domain" (ie - non-existant user).
Is the way the SIP protocol needs to be called broken or did something
change in Cygwin to require slashes as a part of cygstart?
Any suggestions on this?
Thanks everybody!
--
Nem W Schlecht
"Perl did the magic. I just waved the wand."
--
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Change in 'cygstart' functionality?
2016-09-13 16:31 Change in 'cygstart' functionality? Nem W Schlecht
@ 2016-09-13 17:53 ` Ken Brown
2016-09-13 19:05 ` Nem W Schlecht
0 siblings, 1 reply; 4+ messages in thread
From: Ken Brown @ 2016-09-13 17:53 UTC (permalink / raw)
To: cygwin
On 9/13/2016 10:50 AM, Nem W Schlecht wrote:
> Hello all,
>
> So, I used to be able to do this in Cygwin to open a chat session (in
> my case, With Skype for Business aka S4B):
>
> cygstart "sip:user@domain.com"
>
> But I noticed recently that this now fails with:
>
> Unable to start 'sipïºuser@domain.com': The specified file was not found.
>
> I have no idea why the colon ":" is getting converted into an a UTF
> F038 character. I'm also unsure of when this stopped working, since I
> don't use it all that often.
>
>
> I thought maybe having some slashes would be required, so I tried:
>
> cygstart "sip:/user@domain.com"
>
> Error:
> Unable to start 'sipïº\user@domain.com': The specified file was not found.
>
> And yes, I did cut-paste that and *yes* the direction of the slash *changed*.
>
>
> With 2 slashes, a get an error in S4B that the address doesn't
> exist/is incorrect.
>
> With 3 slashes, a new chat window opens! But its with user
> "///user@domain" (ie - non-existant user).
>
>
> Is the way the SIP protocol needs to be called broken or did something
> change in Cygwin to require slashes as a part of cygstart?
There's no code in cygstart to recognize the SIP protocol. (It wouldn't
be hard to add such code, as was done a few years ago for "mailto:".
See line 598 of cygstart.c in the sources for the cygutils package.)
So cygstart treats "sip:user@domain.com" as a file name. The funny
Unicode character you see comes from Cygwin's translation to allow ":"
as part of a file name. See
https://cygwin.com/cygwin-ug-net/using-specialnames.html#pathnames-specialchars
Ken
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Change in 'cygstart' functionality?
2016-09-13 17:53 ` Ken Brown
@ 2016-09-13 19:05 ` Nem W Schlecht
2016-09-13 19:52 ` Andrey Repin
0 siblings, 1 reply; 4+ messages in thread
From: Nem W Schlecht @ 2016-09-13 19:05 UTC (permalink / raw)
To: The Cygwin Mailing List
On Tue, Sep 13, 2016 at 12:44 PM, Ken Brown <kbrown@cornell.edu> wrote:
> On 9/13/2016 10:50 AM, Nem W Schlecht wrote:
>>
>> Hello all,
>>
>> So, I used to be able to do this in Cygwin to open a chat session (in
>> my case, With Skype for Business aka S4B):
>>
>> cygstart "sip:user@domain.com"
>>
>> But I noticed recently that this now fails with:
>>
>> Unable to start 'sipuser@domain.com': The specified file was not
>> found.
>>
>> I have no idea why the colon ":" is getting converted into an a UTF
>> F038 character. I'm also unsure of when this stopped working, since I
>> don't use it all that often.
>>
>>
[deletia]
>
>
> There's no code in cygstart to recognize the SIP protocol. (It wouldn't be
> hard to add such code, as was done a few years ago for "mailto:". See line
> 598 of cygstart.c in the sources for the cygutils package.)
>
> So cygstart treats "sip:user@domain.com" as a file name. The funny Unicode
> character you see comes from Cygwin's translation to allow ":" as part of a
> file name. See
>
>
> https://cygwin.com/cygwin-ug-net/using-specialnames.html#pathnames-specialchars
Thanks for the excellent breakdown, Ken. Makes sense with the colon
":". Still not sure why it did work a couple months ago and now
doesn't. I was under the assumption that 'cygstart' was a very basic
program that just passed whatever it was passed on to Windows to
handle - similar to "Start-Process" in Powershell, or well, just like
double-clicking on something on the Desktop.
My 'cygstart's last mod time is Nov 24, 2015 and this was definitely
working *after* that time, so something else changed. It's like
'cygstart' is assuming this is a file and trying to do something smart
that way rather than just letting Windows handle it (as it would
*need* to do if this were indeed a Cygwin path). Again, when I add in
the extra slashes, S4B *does* get the SIP request. Without the
slashes, something in Cygwin is assuming this is a filesystem call.
I'll take a look at the 'cygstart' code and see if (with my lowly
programming skills) I can suggest a patch. :)
--
Nem W Schlecht
"Perl did the magic. I just waved the wand."
--
Problem reports: http://cygwin.com/problems.html
FAQ: http://cygwin.com/faq/
Documentation: http://cygwin.com/docs.html
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Change in 'cygstart' functionality?
2016-09-13 19:05 ` Nem W Schlecht
@ 2016-09-13 19:52 ` Andrey Repin
0 siblings, 0 replies; 4+ messages in thread
From: Andrey Repin @ 2016-09-13 19:52 UTC (permalink / raw)
To: Nem W Schlecht, cygwin
Greetings, Nem W Schlecht!
> Thanks for the excellent breakdown, Ken. Makes sense with the colon
> ":". Still not sure why it did work a couple months ago and now
> doesn't. I was under the assumption that 'cygstart' was a very basic
> program that just passed whatever it was passed on to Windows to
> handle - similar to "Start-Process" in Powershell, or well, just like
> double-clicking on something on the Desktop.
> My 'cygstart's last mod time is Nov 24, 2015 and this was definitely
> working *after* that time, so something else changed. It's like
> 'cygstart' is assuming this is a file and trying to do something smart
> that way rather than just letting Windows handle it (as it would
> *need* to do if this were indeed a Cygwin path). Again, when I add in
> the extra slashes, S4B *does* get the SIP request. Without the
> slashes, something in Cygwin is assuming this is a filesystem call.
> I'll take a look at the 'cygstart' code and see if (with my lowly
> programming skills) I can suggest a patch. :)
In the meantime, you could use a workaround.
"$SYSTEMROOT/System32/cmd.exe" /C START "" /NOWAIT "sip:..."
--
With best regards,
Andrey Repin
Tuesday, September 13, 2016 22:01:17
Sorry for my terrible english...
--
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^ permalink raw reply [flat|nested] 4+ messages in thread
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2016-09-13 16:31 Change in 'cygstart' functionality? Nem W Schlecht
2016-09-13 17:53 ` Ken Brown
2016-09-13 19:05 ` Nem W Schlecht
2016-09-13 19:52 ` Andrey Repin
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