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Differential D26823

devmatch(8): Respect mask field when matching strings.
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Authored by wulf on Oct 17 2020, 12:19 AM.
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imp
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rS367676: MFC r367237:
rS367237: devmatch(8): Respect mask field when matching strings of Z type.
Summary

Currently, only integer fields of descriptor string can be masked out for matching. This patch adds support for masking of 'Z' type field.

While here, add debug output for this action.

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rS FreeBSD src repository - subversion
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Event Timeline

wulf requested review of this revision.Oct 17 2020, 12:19 AM
wulf created this revision.
imp added inline comments.Oct 17 2020, 12:24 AM
sbin/devmatch/devmatch.c
352 ↗(On Diff #78338)

When would bit by < 0?

wulf added inline comments.Oct 17 2020, 12:32 AM
sbin/devmatch/devmatch.c
352 ↗(On Diff #78338)

It starts iterating from -1. May be the first field is dedicated to mask itself?

imp added inline comments.Oct 17 2020, 12:36 AM
sbin/devmatch/devmatch.c
352 ↗(On Diff #78338)

Yes.... I don't think the check is needed, but I'm not sure

wulf added inline comments.Oct 17 2020, 12:39 AM
sbin/devmatch/devmatch.c
352 ↗(On Diff #78338)

I borrowed the check from integer case to not introduce new bugs.

imp accepted this revision.Oct 17 2020, 12:53 AM
imp added inline comments.
sbin/devmatch/devmatch.c
352 ↗(On Diff #78338)

I borrowed the check from integer case to not introduce new bugs.

Fair enough. Keep it...

This revision is now accepted and ready to land.Oct 17 2020, 12:53 AM
Closed by commit rS367237: devmatch(8): Respect mask field when matching strings of Z type. (authored by wulf). · Explain WhyOct 31 2020, 10:04 PM
This revision was automatically updated to reflect the committed changes.
wulf added a commit: rS367237: devmatch(8): Respect mask field when matching strings of Z type..
wulf added a commit: rS367676: MFC r367237:.Nov 14 2020, 11:52 AM

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head/
sbin/
devmatch/
5 lines

Diff 79020

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head/sbin/devmatch/devmatch.c

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