While pipe() only supports a read end and a write end, named FIFOs are supposed to allow opening in read/write mode (which, indeed, is something the Fish shell seems to require.) The code that checks open_mode in the read/write routines was introduced all the way back in 2003 (2469f26dfc618dac7853c0de146df7872e60623f). At that time, the VFS did not do open_mode checks on FDs in the I/O syscalls, so these doubled as permissions checks. Now, however, the VFS does check that in common_user_io, so we can remove these entirely and let things behave as they should. Additionally, there is now also no reason to prevent select()ing on both events for the same FD independent of open_mode, so allow that too. Change-Id: Ib3cba76d18e91b7c00d1695e8d29dd47cae06b79 Reviewed-on: https://review.haiku-os.org/c/haiku/+/5427 Reviewed-by: waddlesplash <waddlesplash@gmail.com>
Haiku
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Haiku is an open-source operating system that specifically targets personal computing. Inspired by the BeOS, Haiku is fast, simple to use, easy to learn and yet very powerful.
Goals
- Sensible defaults with minimal configuration required.
- Clean, clear, concise code.
- Unified desktop environment.
Trying Haiku
Haiku provides pre-built nightly images and release images. Haiku is compatible with a large variety of hardware, but in case you don't want to "take the plunge" and install Haiku on bare metal, you can install it on a virtual machine (VM) instead. If you've never used a VM before, you can follow one of the "Emulating Haiku" guides.
Compiling Haiku
See ReadMe.Compiling
.
Contributing
Haiku is a meritocratic open source project with a large variety of tasks. Even if you can't write code, you can still help! Haiku needs designers, (technical) writers, translators, testers... Get involved and help out!
Contributing code
If you're submitting a patch to us, please make sure you're following the patch submitting guidelines.
If you're having trouble finding something in the source tree, you can use one of our web-based source code browsers:
- https://xref.landonf.org/ (OpenGrok, provided by Landon Fuller)
- https://git.haiku-os.org/ (git, provided by Haiku, Inc.)
Contributing documentation
The main piece of documentation that still needs work are the API docs (found
in the tree at docs/user
). Just find an undocumented class, write
documentation for it, and submit a patch.
Contributing translations
See wiki:i18n.
Contributing software ports
See HaikuPorts.
Contributing to our infrastructure
See Infrastructure.