Buy a (real) Book! Beej’s Guide to Network Programming (online and for download) This is a beginner’s guide to socket programming with Internet sockets . Beej’s Guide to Network Programming. Note for Windows Programmers. I have a particular dislike for Windows, and encourage you to try Linux, BSD. Beej’s Guide to Network Programming has been one of the top socket programming guides on the Internet for the last 15 years, and it’s now for the first time.

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It’s only second best. Reading any other programming book from is likely a waste of time. Guids are some obvious exceptions, but they’re few and far between. Anything by Stevens is the gold standard! Want to understand the lower layers of the network stack? To add another good one: Practical Guide for Programmers is great. I found it more straightforward than Beej’s.

Though I was supplementing it with Computer Networking: Old as hell, but still very useful. It’s one of those fundamental things about computer science and knowing netwrok this stuff works is far more valuable than learning how to use this or that web framework.

I actually dug it up because I wanted to see what it takes to create a web server from scratch in a low level language and found it informative and entertaining. It doesn’t really matter what language you’re working in; if you’re making these system calls to build your netcode, you prograkming to step back and ask yourself why.


When in a C and unix pfogramming context i’ve often found myself using these syscalls. What libraries in particular guied I be using instead? It does look pretty cool, but it definitly does not proggramming all the cases where I’ve had to use low level socket APIs.

It also has insanely good cross language support as well as the ability to talk to raw sockets. There are some very good design patterns and I almost exclusively use their brej synchronization model.

The book is definitely worth a read since you can use zmq in basically any language you can think of. I realized after I commented that maybe I’m just a better programmer than I used to be It depens mostly on a how much you should have ALL OF IT error handling you do and b how well you know what’s given to you in the standard libs of C so buide don’t go reimplementing features and functions.

There’s not a lot implemented in the C standard libraries wrt socket programming. C is pretty annoying to write servers in. But sure, you have to implement some boilerplate yourself on socket handling. Fortunately it is not many lines and once you have the same convenience functions written it is really easy.

Also the api is not ugly or hard. The api is ugly and hard compared to other languages flipping net endianness, really? You must agree on byte order and that’s one of the easiest way to do it protramming you send multibyte numbers. Nothing about network programming is difficult or error prone from the api view.


It is your perception of it because it does require knowing quite a lot of functions and having to write repetitive code at first because the api is flexible and letting you do that. I do think that there should have been convenience functions in the standard libs that do basic things for you, though. What fucking parsing are we talking about? It is literally proframming checking if the return code was -1 and printing the error with strerror if you so choose.

Pease tell us what is ugly? The progrqmming place that is ugly is struct sockaddr and variants, that api should just be deprecated. Otherwise the api is clean:. What the issue is that there are not many good resources on how to quickly get things rolling and tie shit together but for that you guise have loads of wrapper libs, like with every single language. Or do you say javascript is easy because you can “just require npm packages bro” or “just import the modules” as in Python while C is hard because C libs dont count?

You have a bias against C. Yes there are shortcomings but it’s mostly your bias. Don’t say things when they arent true.

No clue who thought that was a good idea. It’s one of the examples of what stupid shit posix did with their network api. By “parsing” I mean things like transforming protocol packets to native structures.

I’ve actually seen people casting the data to structs and flip the fields manually netwkrk the network order doesn’t match platform in C. While in other languages there are actually sensible mapping APIs.

beej On top of that is the genral memory unsafety of C. It’s kind of sad how large a portion of serious exploits in network parsing code are caused by C programmers overestimating their ability to deal with C making mistakes in manual memory management.

You don’t just learn sockets. You learn how to make a transaction engine that uses sockets as a transport. Each transaction has a frame of context that goes with it. A heck of a lot of what makes transaction-framing code correct or buggy is the memory management portion of that code. Your toy language was built to throw a bone to idiots who can’t figure out eventing for themselves.

Both statements here are highly debatable. Do you mean this tutorial helped you understand Unix sockets? It’s got a copyright on it! That’s old as hell? No wonder you can barely get hired as a programmer if you’re over 35 with that worldview. You don’t know progfamming and you already make assumptions about my employment status?

What’s wrong with you people? You don’t know about the rampant ageism in the programming fields?

I meant nothing about you at all, I don’t even know you, why would I care if you are employed or not!?!?!? I’ve reread your post and now I see I misunderstood it. I agree with your point. Lots of capable guys have got hard time finding a job just because they love coding and they are considered old. And by the way I read this paper around 10 years ago. That’s why I said it’s old as hell.


[PDF] Beej’s Guide to Network Programming Using Internet Sockets : programming

Because even 10 years later it’s still relevant. I think this is quite good for a tutorial. I went ahead and googled beeg.

Rather unsurprisingly, it’s porn. Not the worst kind of result really. I also read the title as “Bee Gees”! Neteork thought it was going to contain references to “Staying Alive”, much to my confusion that didn’t appear anywhere Damn you for bringing up exactly how long ago you read that.

I just worked out I read it 15 years ago, and now I feel old. Also worth pointing out ITHare’s beta book which has Tradeoffs, high level views, etc. Beej’s will tell you how to use different methods, the above is a pretty good overview of why you would choose things, how you would architect them, what does nework look like in the real world, etc.

Beej’s Guide to Network Programming

You can also tell he was slightly starting to lose it somewhere in the middle of the book, like from this little gem:. Just kidding on that end-of-the-universe thing I first went through this in my early high school years back in or so and wrote a very basic chat program that could be used on our school network.

I have consulted a printout of the old website version of this for more than a decade, and consider it a gold standard of unix networking documentation. This is classic, it was my first introduction to socket programming, and was critical for the first non-trivial C programs.

Really good shit, I hope this never gets forgotten. This is the site we use as a reference in my networking class.

The guy attended my school, apparently, as a lot of it seemed oddly specific to the class instruction. Used to know a guy on efnet in unix channels that went by Beej.

Programming, that was at least 15 years ago. Was not meant as a brag or anything. Just found it odd. And, I don’t have a way to even confirm.

Shouldn’t have even posted it. There were a lot of very talented people I learned some from in there. But, I mostly knew them by used nicknames. Only one I remember a name for worked at Purdue for Cerias. Another worked for a large company in NY and ended up going to Fed for a PoC exploit he giude his email in. Proved he wasn’t even online nrtwork the time of the incident.

Well, as much as he could

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