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72a366f018
Coverity made two complaints about this function. The first is that we ignore the number of bytes read. The second is that we have a sizeof mismatch. On 64-bit systems, long is a 64-bit type. Paradoxically, the standard says that hostid is 32-bit, yet is also a long type. On 64-bit big endian systems, reading into the long would cause us to return 0 as our hostid after the mask. This is wrong. Also, if a partial read were to happen (it should not), we would return a partial hostid, which is also wrong. We introduce a uint32_t system_hostid stack variable and ensure that the read is done into it and check the read's return value. Then we set the value based on whether the read was successful. This should fix both of coverity's complaints. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Neal Gompa <ngompa@datto.com> Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu> Closes #13968 |
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OpenZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community. This repository contains the code for running OpenZFS on Linux and FreeBSD.
Official Resources
- Documentation - for using and developing this repo
- ZoL Site - Linux release info & links
- Mailing lists
- OpenZFS site - for conference videos and info on other platforms (illumos, OSX, Windows, etc)
Installation
Full documentation for installing OpenZFS on your favorite operating system can be found at the Getting Started Page.
Contribute & Develop
We have a separate document with contribution guidelines.
We have a Code of Conduct.
Release
OpenZFS is released under a CDDL license.
For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197
Supported Kernels
- The
METAfile contains the officially recognized supported Linux kernel versions. - Supported FreeBSD versions are any supported branches and releases starting from 12.2-RELEASE.