Category Archives: Open Source

Open Source, Free Software, and similar

cURL and libcurl

More libcurl adoption

Some recent news showing libcurl possibly widening its user-base:

Eugene V. Lyubimkin posted a suggestion that libcurl should be used by the upcoming APT release for all ftp and http accesses!

Mr Johansen at Sun told us libcurl is being considered (via the pycurl binding) for the new OpenSolaris package manager.

perl’s widely used module for HTTP/FTP etc, called LWP, has gotten a libcurl-powered sibling called LPW-curl, which if I understand things correctly makes transfers using the traditional LWP-style and API but is powered by libcurl underneath.

Someone (not being me) registered libcurl.org. The site actually contains rather accurate info but if I disable adblock it shows lots of ads on the page though so I guess that’s why the page exists… (googling for “libcurl” now shows this site among the 5-6 first hits, which surprises me…)

More?

c-ares

c-ares 1.6.0

With a few bug fixes and general improvements, c-ares 1.6.0 was released just now with these new additions:

  • support for the glibc “rotate” resolv.conf option (or ARES_OPT_ROTATE)
  • ares_gethostbyname_file()
  • ares_dup()
  • ares_set_socket_callback()

(the man pages for the new functions are not yet available on the web site but I’m meaning to get to that soonish)

Development, Open Source

Open source in my day job

From people in the open source community and then especially friends and fellow hackers in projects I am involved in, I sometimes get questions on how my open source participations affect my “real job”.

I work as a consultant during the days and I do contract development for hire. I’ve been a consultant since 1996 and during this time I’ve participated in more than 25 “full-time” projects for almost as many customers.

I contribute to numerous open source projects and I’ve done it for many years. I lead and maintain several open source projects. I’ve committed many thousands of times to public source code repositories.

Does the contributions make me more attractive to potential customers? Not particularly is my rather sad experience. While some of my customers notice my track record (my CV does of course mention my most notable contributions) most of my day-job clients focus solely on other paid projects I’ve done and that exact technologies and products I worked with and created in the past. It may of course not be too strange as things I do and get paid for is then potentially “good enough for someone to pay me for” while the stuff I do for free in open source projects are… well, not paid for and thus it can’t be qualified by that ruler.

Do I get new assigments thanks to my open source projects? Yes, I do, but usually they tend to be on the smallish side and not of the bigger kinds my regular assignments at work are.

And the reality is of course also that the vast vast vaaast majority of all software consultants that people hire to do development have no public record of open source involvement so it could just be a result of that this is so rare the customers never had a reason to learn or adapt to using open source contributions as a “factor”.

Or maybe I’m just ignorant and haven’t figured out how my customers truly work.

Do I work with open source in my day job? Yes almost exclusively. I’ve been working with Linux in various embedded systems basically the last 8 years and working with Linux systems pretty much implies a wide range of open source development tools as well.

Development, Open Source

4 ohloh improvements I’d like

I am a stats junkie so I like my stats in large amounts. But I like the stats to be right and as accurate as possible, and when I look at what ohloh produces I like the concepts and ideas in general, I just think their implementation is lacking in a few vital areas that need improvement:

1. There are no dependencies or hierarchies between packages, so “I use this” counters get worthless since people mark end-user packages they use. Low-level support packages and libraries that are used indirectly don’t get many “use counts”

2. Doing very few commits in a very well used project with few authors gives you way way more points than doing a bus-load of commits in something less used with many fellow contributors. This makes the top-list of people very skewed as some of the top-64 people only did a few hundred commits ever. I doubt many mortals would consider someone who only ever did 300 commits to be a top community person. At the very moment I write this, the #1 ranked person has done 20 commits during 5 months…!

3. Too few versioning systems are supported, leaving out huge chunks of the open source world. Bazaar, mercurial and a few more are a bit too popular to be ignored without the results getting skewed.

4. I’d like to see the “number of users” of products as a percentage, as the total number of users they show include all contributors to all projects. Out of the 140,000 users (which undoubtedly include a lot of duplicates), it would surprise me if more than 10,000 have actually registered what products they use. I’ve tried to find the exact number but I failed. So 3,000 users don’t mean 3,000 out of 140,000 but 3,000 out of 10,000…

cURL and libcurl, Linux, Web

Solaris 10 ships libcurl

I fell over this document named “What’s New in the Solaris 10 10/08 Release” and it includes this funny little quote towards the end:

C-URL – The C-URL Wrappers Library

C-URL is a utility library that provides programmatic access to the most common Internet protocols such as, HTTP, FTP, TFTP, SFTP, and TELNET. C-URL is also extensively used in various applications.

The project is cURL, the tool is curl and the library is libcurl. There’s nothing named C-URL and it isn’t any “wrappers library”… And the list of protocols is also funny since it includes 6 protocols while a modern libcurl supports 13 different ones, and also if you build libcurl to support SFTP you also get SCP (which the list doesn’t include) etc.

It just looks so very sloppy to me. But hey, what do I know?

Linux, Network

Nvidia chipset audio now works

I’ve mentioned some of my audio problems on my Linux desktop before, and just the other day a friend suggested I should remove ‘esd’ (“apt-get remove esound”) as a means to fix one of my complaints and frequent annoyance (to get the sound working I had to kill esd first, then reload some drivers etc).

Recently my standard “trick” to get the sound brought to life had started to fail so I needed to get a new angle at this and boy, when I did a reboot now without esound installed my on-board sound works! And this without me doing any manual fiddling at all.

My motherboard’s sound info is displayed like this with lspci -v:

00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev a2)
Subsystem: ASUSTeK Computer Inc. Device 81cb
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 22
Memory at fe024000 (32-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel

cURL and libcurl

curl presentation video

1 Comment

I held a 38 minute talk (in English) at the FSCONS conference 2007 about curl and libcurl, and now I’ve realized that the recording from that event is available online in various forms and ways.

You can get the pure Ogg Theora video files by using these links:

The slides from the presentation are still available.

fsfe.org hosts the complete collection of videos from that conference.

I haven’t yet had time and oppurtunity to watch it myself. I figure I’ll do that soon to see and learn from my own mistakes and odd habits when talking in public… and try to not get disturbed too much by my own accent!