Here's a very nice Gnutella program one in C - you should easily get samples there:
- gtk-gnutella - The Graphical Unix Gnutella Client

Also there's Shareaza in C++, but that one's a multinetwork and the last time I checked its Gnutella implementation wasn't that advanced (bad track record) and it's Windows only:
- Shareaza - Bringing P2P Together

Did you already read Gnutella for Users - Gnufu and GDF - LimeWire ?

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GnuFU.net - Gnutella For Users
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Ich freue mich ja immer mal wieder, wenn unser Name hier faellt.

Also, solltest du wirklich bei der Gnutella-Programmierung einsteigen wollen, werden wir dich gerne als Entwickler aufnehmen, denn wie bereits gesagt, unsere Gnutella-Implementierung ist - gelinde gesagt - sehr einfach, und wir wuerden uns wirklich freuen, wenn sich jemand die Muehe macht, hier und da ein paar Verbesserungen vorzunehmen. Fuer Fragen steht unser Entwicklungsteam auch zur Verfuegung (Englisch oder Russisch ).

Den Quellcode kann man uebrigens wie bei allen OpenSource Programmen einfach von SourceForge.net herunterladen. Ich nehme mir mal die Freiheit, auf unser Wiki zu verlinken, wo eine Seite mit Dingen, die bei der Kompilierung von Shareaza zu beachten sind, aufgefuehrt wird:
SourceForge.net: Developers - shareaza


BTW, Phex und gtk-gnutella sind uebrigens sehr gute Programme, was ihre Implementierung dieses Netzwerkes angeht (Ich moechte ja nicht nur Werbung fuer eine Seite machen ).


EDIT: Hier kannst du nachsehen, wie Shareaza mit dem gnutella-Netzwerk (und allen anderen Netzwerken) umgeht: https://sourceforge.net/apps/mediawi...wShareazaWorks

-------
To keep it short for those who don't know German: I've told him the Shareaza community would welcome him as a Gnutella dev (as we really need one, there we all agree^^) and reply to questions if he needs further information. I've also posted a wiki link on how to compile Shareaza. My PS states that Phex and gtk-gnutella are good programs, too.
EDIT: expl about how Shareaza deals with its different networks: https://sourceforge.net/apps/mediawi...wShareazaWorks

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Kudos for your friendly answer - did you manage to advance the option to compile Shareaza on GNU/Linux?
(I remember seeing it a few months/years back, but I didn't spot it on the website and my package manager doesn't have Shareaza)

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Thanks, but at the moment I'm working on 2 open-source projects, and I don't have time for more

I just want to inform myself about the gnutella network a little bit. I'm very interested in this topic, and probably I will join a running project in the future....

The actual state of my little "gnutella client" (I called it "tifofi") is:
A simple Qt-application wich is able to connect to multiple servent. I can trace the connections, and a list view shows me the files the servents provide to the network. But there is no download functionality at the moment. Ii takes 3 days to write this well documented c++ code, probably a base for more.....

...and - of course - the little client runs on windows and linux... (thanks to the Qt-developer....)

but at the moment I stop the development at this point...
let's see what the future brings......

Wolli

The download functionality shouldn't be that much effort, as long as you don't go into partial file sharing: Just a simple HTTP 1.1 request to

http:// IP:PORT/uri-res/N2R?urn:sha1:SHA1_HASH_IN_BASE32_UPPERCASE

Since you should already know the sha1 hashes of the files of others, this would make your client functional at once

PS: Which two free projects do you work on?

PPS: Congratulation!

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Well, Shareaza largely depends on MFC (Micro$oft Fucking Classes), so compiling it on Linux is not possible (and won't be possible in the future if we don't find somebody willing to do really lots of work ). However, out of the Shareaza community emerged a new client called "Sharelin", which will once have the full functionality of Shareaza (work in progress) - and work on Unix based systems.


Cool, I'd like to know which ones?

Looking forward for this Every new developer is always welcome.

Do you mind sharing the code? Others might be interested in it for the same reason you created it

Just make sure you look around over here from time to time

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ok, the first one is a "little photoshop" with some special functions we need for our private slideshows. There are 3 people working on it, but it's far away to share with other people. It supports layers and channels, a lot of picture formats, some filters, color management and about 30 "special functions" we need. And it's quickly......
The name is Hydraca and it's written in C++ with Qt. Here is a little snapshot



The second one is a 3D construction program and 3D-router which uses OpenGL. This project is running since 3 years, and it uses Qt too, but I need time to continue development......
Here is a snapshoot too:


Both programs runs on Windows and Linux :-)


Aaaaaarrrgh.... normaly no problem, but unfortunately I'm working in england now (since some days), with no access to my private PC. I will be back in gemany (where my PC is) and able to share the little client in about 3 month...... :-((
I'm so sorry....

regards