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Capisimizing wall(1)
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Authored by hanslu952_gmail.com on Jun 12 2024, 7:40 AM.
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Details

Reviewers
oshogbo
lwhsu
Summary

The first problem is to use pdfork.
because fork() is disallowed in capability mode,
we use pdfork() to replace ,the semantic is same as rwhod
The second problem is to limit the file descriptor used by open.
it sets up a specific right (write) for a file descriptor and then
attempts to enforce the limitation. If the operation fails,
the program will terminate with a specific error message

Test Plan
	   ktrace wall
	   kdump ktrace.out

Diff Detail

Repository
rG FreeBSD src repository
Lint
Lint Passed
Unit
No Test Coverage
Build Status
Buildable 58149
Build 55037: arc lint + arc unit