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* When system calls indicate an error they return -1, not some arbitraryderaadt2019-06-281-3/+3
| | | | | | value < 0. errno is only updated in this case. Change all (most?) callers of syscalls to follow this better, and let's see if this strictness helps us in the future.
* hostctl: Don't crash if key is empty stringsf2018-07-031-3/+2
| | | | ok reyk@
* Stress the fact that individual pvbus device nodes correspond tomikeb2017-07-211-2/+5
| | | | | a single key-value store and if there are other ones available, different nodes must be used to access them.
* Fixup a typo and provide an example for Hyper-Vmikeb2017-01-181-3/+30
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* - sort optionsjmc2016-01-272-7/+7
| | | | - add -q to usage()
* appease mandoc lint, no difference in outputjasper2016-01-271-2/+1
| | | | ok reyk@
* Use "VIS_SAFE | VIS_CSTYLE" instead of "VIS_OCTAL" as the value canreyk2016-01-271-4/+4
| | | | contain text files with whitespace, newlines and carriage returns.
* Add hostctl(8), a tool to access key-value stores on the host,reyk2016-01-273-0/+353
currently for hypervisor information stores on pvbus(4). As discussed with deraadt@, the generic name is used to potentially extend it for other use cases where the host or machine firmware provides a key-value store, hypervisors or things like openprom. Not enabled yet. OK mikeb@