Re: [Openslp-users] Cannot get OpenSLP to work on Windows 7

[Robert H. <rh...@hs...>]

Ok I spent some more hours on this issue. I can successfully run 
revisions 1715 to 1731. But with revision 1732 I get the error -19. 
Revision 1732 contains some changes in slp_network.c (among others). 
Below you can see how SLPNetworkRecvMessage() (in slp_network.c) behaves 
in revision 1731 and 1732:

Revision 1732:
- select() on line 237 returns 1
- recvfrom() on line 243 returns -1
- therefore the condition on line 276 is false and 
SLPNetworkRecvMessage() sets errno to EINVAL and returns -1

Revision 1731:
- select() on line 237 returns 1
- recvfrom() on line 243 returns -1
- but now on line 276 the condition is true since it does not check 
xferbytes as in revision 1732. SLPNetworkRecvMessage() then continues 
without causing any errors.

I don't know what the intention of the changes of revision 1732 was. And 
I don't know if recvfrom() on line 243 should not return -1 to begin 
with, or if the condition on line 276 in revision 1732 is incorrect. But 
I think someone should have a closer look at SLPNetworkRecvMessage() again.

Attached you can find my suggested patches based on the latest Mercurial 
revision. With these patches it works for me.



Am 13.05.2013 09:29, schrieb Robert Hegner:
> I also did some more investigation on the second issue (error code -19).
>
> When I use the beta 2 installer, it seems to work (I can register a
> service using slptool without getting the -19 error).
>
> Then I stopped slpd and replaced the binaries with the ones I built from
> the latest Mercurial revision (cdaeb8) and restarted slpd. Then I got
> the -19 error again.
>
> Then I uninstalled OpenSLP, built the installer with the latest
> Mercurial revision, and installed it with my own installer again. Also
> in this case I get the -19 error.
>
> So for me this looks like I can confirm the problem that Ren described
> in January (he suspected that a problem was introduced somewhere between
> beta 2 and the current revision).
>
>
>
> Am 10.05.2013 13:56, schrieb Robert Hegner:
>> Hello,
>>
>> I've been using OpenSLP in my project for a while now. This week I set
>> up a new computer (Windows 7 64Bit) and I tried to build and run my
>> application and OpenSLP on this new machine with VC++2010. Even though I
>> have a 64Bit OS I'm building OpenSLP as a 32Bit application, since my
>> own application is also 32Bit.
>>
>> First I tried the latest version from the Mercurial repository (cdaeb8).
>> I was able to build it and slpd seems to work, since
>> slptool findsrvs service:service-agent
>> returns one entry with my IP address. However, when I try this:
>> slptool register service:myserv.x://myhost.com
>> (as in the examples of slptool), I get an access violation (Unhandled
>> exception at 0x00401643 in slptool.exe: 0xC0000005: Access violation
>> reading location 0x00000000.)
>>
>> Then I tried an older version (the latest version from the SVN
>> repository, rev. 1701). I can also build and install slpd, and I can
>> also find the service-agent. But when I try to register a service using
>> slptool I get error code -19. As far as I know this indicates a problem
>> with the communication between slpd and slptool, right? However, slpd
>> seems to be running (otherwise I wouldn't find the service-agent). So I
>> guess it is a problem with missing privileges or a firewall problem.
>> What rules do I need in the Windows Firewall to get OpenSLP to work? (do
>> I need rules for slpd or slptool?, ingoing or outgoing? which port and
>> protocol?). Unfortunately I cannot completely disable the firewall for a
>> test due to group policies, but I can add rules.
>>
>> Any hints on how to solve or debug at least one of these problems would
>> be much appreciated!
>>
>> Cheers,
>> Robert
>>
>>
>> ------------------------------------------------------------------------------
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>
>
>
> ------------------------------------------------------------------------------
> Learn Graph Databases - Download FREE O'Reilly Book
> "Graph Databases" is the definitive new guide to graph databases and
> their applications. This 200-page book is written by three acclaimed
> leaders in the field. The early access version is available now.
> Download your free book today! http://p.sf.net/sfu/neotech_d2d_may
>