https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192239
Bug ID: 192239
Summary: NOTE_TRUNCATE not supported
Product: Base System
Version: 10.0-RELEASE
Hardware: Any
OS: Any
Status: Needs Triage
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: freebsd-bugs@FreeBSD.org
Reporter: ericsh...@eradman.com
Created attachment 145120
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=145120&action=edit
a minimal program for printing VNODE events on BSD
On OpenBSD /usr/include/sys/event.h defines a filer for watching responding
file truncation:
#define·NOTE_TRUNCATE 0x0080 /* vnode was truncated */
On FreeBSD this is not defined, and does not appear to be covered by any other
filers
$ echo "test" > file.txt # NOTE_WRITE
$ : > file.txt # NOTE_TRUNCATE
I'm filing this bug on behalf of the entr utility (http://entrproject.org)
since this leaves an edge case where a file is altered without triggering an
action.
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