Category: Development

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AVIF (12/10/8-bit) image support for darktable

As I’m an amateur photographer, I’m using Open Source tools for developing my images. The software I use is called darktable. I think it is the best tool out there for editing RAW images. From time to time I contributed small code changes to darktable, mostly bug fixes. Now I nearly finished my first feature for darktable, support for the AVIF image format. For implementing...

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cmocka version 1.1.2 released

I’m happy to announce version 1.1.2 of cmocka, a unit testing framework for C with mocking support. ChangeLog Added function to filter tests (cmocka_set_test_filter) Added new mocking example (uptime) Fixed fixture error reporting Fixed compiler flags detection Some improvement for API documentation

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Microsoft Catalog Files and Digital Signatures decoded

TL;DR: Parse and print .cat files: parsemscat Introduction Günther Deschner and myself are looking into the new Microsoft Printing Protocol [MS-PAR]. Printing always means you have to deal with drivers. Microsoft package-aware v3 print drivers and v4 print drivers contain Microsoft Catalog files. A Catalog file (.cat) is a digitally-signed file. To be more precise it is a PKCS7 certificate with embedded data. Before I...

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A new cmocka release version 1.1.0

It took more than a year but finally Jakub and I released a new version of cmocka today. If you don’t know it yet, cmocka is a unit testing framework for C with support for mock objects! We set the version number to 1.1.0 because we have some new features: Support to catch multiple exceptions Support to verify call ordering (for mocking) Support to pass...

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Testing PAM modules and PAM-aware applications in the Matrix

Jakub Hrozek and I are proud to announce the first release of pam_wrapper. This tool allows you to either simplify testing PAM modules or your application using PAM to authenticate users. PAM (Pluggable Authentication Modules) is a layer of abstraction on top of Unix authentication. For testing PAM-aware applications we have written a simple PAM module called pam_matrix. If you plan to test a PAM...

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uid_wrapper-1.2.0 released!

I’ve just released uid_wrapper-1.2.0, a testing tool to fake privilege separation! The new version correctly checks privileges when changing IDs and has a lot more tests! Learn more at https://cwrap.org.

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libssh is running in the Matrix now

Since I joined the libssh project we started to write tests to find regression and make development easier. This has been achieved using the a unit testing framework called cmocka which I maintain and develop. The problem is that to run these tests you need to modify the sshd configuration and setup a test user so that the tests can be successfully executed. This is...

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cmocka 1.0

At the beginning of February I attended devconf.cz in Brno and the days before I had a hack week with Jakub Hrozek on cmocka. cmocka is a unit testing framework for C with support for mock objects. We already rewrote the test runner last year and it was time to finish it and add support for several different message output formats. You are able to...

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New uid_wrapper with full threading support.

Today I’ve released a new version of uid_wrapper (1.1.0) with full threading support. Robin Hack a colleague of mine spent a lot of time improving the code and writing tests for it. It now survives funny things like forking in a thread. We also added two missing functions and fixed several bugs. uid_wrapper is a tool to help you writing tests for your application. If...

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resolv_wrapper 1.0.0 – the new cwrap tool

I’ve released a new preloadable wrapper named resolv_wrapper which can be used for nameserver redirection or DNS response faking. It can be used in testing environment to route DNS queries to a real nameserver separate from resolv.conf or fake one with simple config file. We tested it on Linux, FreeBSD and Solaris. It should work on other UNIX flavors too. You can download resolv_wrapper here.