https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=208965
Bug ID: 208965
Summary: extattr(2) doesn't allow attribute names of length
EXTATTR_MAXNAMELEN
Product: Base System
Version: 11.0-CURRENT
Hardware: amd64
OS: Any
Status: New
Severity: Affects Many People
Priority: ---
Component: kern
Assignee: freebsd-b...@freebsd.org
Reporter: asom...@freebsd.org
CC: freebsd-amd64@FreeBSD.org
CC: freebsd-amd64@FreeBSD.org
extattr(2) claims that attribute names may be up to EXTATTR_MAXNAMELEN in
length. However, in practice it only allows attribute names of up to
EXTATTR_MAXNAMELEN - 1.
[alans@alans-fbsd-head2 /tmp]$ touch foo
[alans@alans-fbsd-head2 /tmp]$ ATTRNAME=`jot -b X -s "" 255 0`
[alans@alans-fbsd-head2 /tmp]$ setextattr user $ATTRNAME myvalue foo
setextattr: foo: failed: File name too long
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