How to build a routing protocol in omnet++ [closed] - c++

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I am new to omnet++ and i am learning the software. Can any one guide me how to build routing protocol using omnet++. And do i have to use inet or castalia for building the same.

As Princy Rakholiya mentioned you should first do the tic toc example of OMNeT++:
https://omnetpp.org/doc/omnetpp/tictoc-tutorial/
Then take a look at the Wireless INET tutorial:
https://omnetpp.org/doc/inet/api-current/tutorials/wireless/
Personal experience has shown that taking an INET example (take a routing algorithm which is implemented yet and similar to yours) and change it the way you need it, is a good way to start.
After that you should be able to ask in a more specific way.

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How to interact with a smart card in C/C++? [closed]

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Is there any open framework written in C/C++ which helps in interacting with smart card devices, here my aim is to create such a system which is platform independent by in C/C++.
I have been trying to search such Libraries but all i came across is Java based frameworks like OCF and Java Smart Card I/O API.
Any help is appreciated.
Indeed there are methods like SCardEstablishContext, SCardConnect, SCardTransmit, which you use to establish communication with the smart card, and then send commands to the card, on the APDU level.
See also here

libwebsockets vs. WebSockets++ [closed]

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I'm going to make a realtime multiplayer game using the WebSocket technology. However, I am unsure which server implementation I should use. I've found two mature (enough) libraries that suit my needs. libwebsockets and WebSockets++.
Did anyone try them out? Can someone point out the main differences between these two libraries?
You can have a look at QWebSockets, which is written in Qt and works both for clients and servers.

Native C++ HTTPS REST call with certificate validation [closed]

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What library is the best to use for the purpose? Target platform is Linux.
Difficult to tell the best, but i used Qt (QNetworkAccessManager) and a Qt JSON Parser with success.
I picked up libcurl thus it is enforced with SSL certificate validation. Regarding to REST, I am able to send GET and POST requests also. However it is C but not C++ library. But it does not make a big difference for me because the syntax is pretty clear and there are lot of examples.

Is there a C++ CalDav protocol library to connect to iCloud//Yahoo [closed]

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I have started working on C++ Windows application which needs to fetch Icloud and Yahoo Calendars by connecting to the CalDav servers.
Is there a C++ library that implements this protocol?
Is there a C++ library that implements this protocol?
There's always a number of good opensource libs that implement standardised protocols like CalDav.
They are best hunted on FOSS project hosts (with the help of Google).
Here is afew:-
http://libcaldav.sourceforge.net/
http://trac.mulberrymail.com/repos/wiki/icalendar
https://code.google.com/p/kcaldav/ <- unmaintained but may be usefull
http://www.zarafa.com/ <- you might want to extract the CalDav only code from this
https://code.google.com/p/openconnector/ <- same as above

C/C++ library as FTP server [closed]

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I have to add a ftp server to my C++ program so it can receive some files.
Do you know any library out there in C or C++ ?
This one is exactly what I'm looking for: http://sourceforge.net/projects/cftpserver
It's a nice class of two files only where you can start, stop the server, set port,
add users that can connect and their home directory etc ...
This seems to be a good one: http://www.codeproject.com/KB/IP/ftpclientclass.aspx
These guys are known for making the premier network libraries: http://www.nsoftware.com/ipworks