Searching for a commercial C++ licensing library [closed] - c++

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I am finding a commercial C++ library that provides licensing API to use within my product. It should be:
Generate license based on hardware information (e.g MAC, hard disk...)
License could carry additional custom information
Provide both standalone mode and client/server mode
License for selected features ( my product has several features and I want to control issuing license for them separately)
Stable and cross-platform (Windows 32/64, Linux 32/64)
Good supporting service
I found a product of Nglogic: http://nglogic.com/products/LicenceLib/product_master that is pretty close matching to my requirements but I don't know anything about this company. If anyone have used it before, please give me your comments.
I welcome another suggestions. Thanks in advance.

We use LM-X License Manager by X-Formation. It provides all features that you list. Customer support is excellent with very fast response times.

I believe FlexNet Publisher (formerly FlexLM) would fit these criteria. They've been around for ages (10+ years) and are very widely used.

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Any commercial grade web site built using emweb Wt C++ toolkit? [closed]

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Wt C++ webtool kit (https://www.webtoolkit.eu/wt) has been in existence for a decade. I want to know if any commercial grade website, apart from their homepage, that is in existence today that I can access to ascertain its capability.
I seeking to know the useage Wt in a commercial grade website, preferably in financial domain. Earlier there was one MusicPlyr website which was supposed to be based on Wt (the only one that I know of from published information). It was from a for profit company. Now that site is down. I want to know if there are other similar sites (apart from, of course, the wt homepage). There are some webpages listed in the Wt site. But are best simple webpages, but none full blown website.
Further Gwan (http://gwan.com/), a c based web framework, provides the performance bench mark under heavy load condition. I have searched for a similar performance benchmark numbers for Wt. Till date I haven't got it. Please provide me sites where I can get performance benchmarks of Wt (with their built in webserver).
I am looking for a convincing case to use this framework to design and code a full blown financial commercial website. Please help me to get the above information.
Regards
Rathnadhar K V
From their github
Demos, examples
The homepage itself a Wt application, contains also various examples

commercial application licensing issue and a solution for libpcap applications [closed]

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I would like to develop some commercial tool in the area of processing data extracted out of a packet sniffer. I am aware that libpcap is available for that but I am quite sure that there are many restrictions due to licensing issues.
Suppose I don't link my application directly to libpcap libraries, but instead I use the output of tcpdump forwarded to a socket or to a pipe as a feed for my tool..do you think that I will be in trouble from a legal/licensing point of view?
Your best bet is to look at the license directly, which is a 3-clause BSD license. There is no restriction on the usage in commercial applications.
Reliable legal advice is most likely available from a lawyer of your choice.

USB API for Windows [closed]

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Is there a standard API for USB devices on windows? I know classes will have an impact on them but I cant find a standard one/list at all?
Yes there is.
Its called WinUSB - http://msdn.microsoft.com/en-us/library/windows/hardware/ff540196(v=vs.85).aspx
Sample WinUSB code found here - http://msdn.microsoft.com/en-us/library/windows/hardware/ff540174(v=vs.85).aspx
All USB devices has unique Pid, Vid. You can use generic library to interact with its end points for me I am using cypress library which has 2 versions for managed and unmanaged languages.
http://www.cypress.com/?rID=34870
Keep in mind the license for this library is free of charge if used with cypress powered devices only. But you can check it and use native APIs to achieve the same behavior but it supports some good features epically high speed transfer to bulk end points.
Also check this question
Working with USB devices in .NET

What is the most used and flexible SMTP Client library in C/C++? [closed]

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I'm looking to crowd-source this, as I'm having bit of difficulty finding an "industry standard" library for SMTP in C/C++.
I'm looking for the ability to send emails with different MIME formats and attachments. I'd rather not re-invent the wheel by writing a thinly veiled library. But I'd also like to be able to include it in my software without odd licensing issues.
I've read over this related article: What RFCs need to be considered in developing an SMTP client?, regarding the RFCs which are relevant, and I'm looking over the RFCs too.
My personal favourite is VMime, for C++ only, but the highly reputed libcurl also has SMTP support (as well as many other features).
VMime has a dual license; I think curl has a sort of MIT-style license.
libquickmail has all the features you need.
It supports things like multiple alternative bodies and attachments.

Dictionary service free online [closed]

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Anyone knows a good FREE dictionary service? I want to consume it through HTTP Get and then parsing simple HTML or Json.
Dictionary.com is free for non commercial purposes. I need something completely free and reliable.
Google used to have a good api but thy have since changed it to a paid service.
Wordnik API might be usefull http://developer.wordnik.com/docs
It requires a registration, but it supports a bunch of cool features, such as word audio, and you can easily find client libraries for that in different programming languages.
The okapi framework offers a set of translation connectors. Take a look:
http://www.opentag.com/okapi/wiki/index.php?title=Connectors
Not sure about the licenses for those services they are using - but some of them might be just what you need. (click on each connector to read about the webservice it is based on)