svn commit: r301931 - head/tools/tools/decioctl

[Sepherosa Ziehau]

On Thu, Jun 16, 2016 at 5:12 AM, John Baldwin <jhb at freebsd.org> wrote:
> On Wednesday, June 15, 2016 09:01:53 PM John Baldwin wrote:
>> Author: jhb
>> Date: Wed Jun 15 21:01:53 2016
>> New Revision: 301931
>> URL: https://svnweb.freebsd.org/changeset/base/301931
>>
>> Log:
>>   Add a tool to decode ioctl commands.
>>
>>   One or more ioctl command values can be passed as arguments on the command
>>   line.  For each value, the command is broken down into it's components
>>   (direction, group, number, and length).  In addition, if a command has a
>>   known name it is output via sysdecode_ioctlname().
>>
>>   Reviewed by:        kib, emaste, avg
>>   Approved by:        re (gjb)
>>   Differential Revision:      https://reviews.freebsd.org/D6851
>
> I've had a version of this in a private tree of utilities for several years.
> I added the sysdecode stuff yesterday though now that it's easy to do so.
>
> Sample output:
>
> % ./decioctl 0xc4d01902 0xc4e01902 0x4004667f
>   command :  dir  group num  len name
> 0xc4d01902: INOUT  0x19   2 1232 CAMIOCOMMAND
> 0xc4e01902: INOUT  0x19   2 1248
> 0x4004667f: OUT    'f'  127    4 FIONREAD

Haha, very nice :D

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Tomorrow Will Never Die