tree 173be76820f25acb99e144e96cdb26713ace7f54
parent 7e31e0c00fa05cb5fbf4347b585621d6709e19a4
author Tobias Klauser <tklauser@distanz.ch> 1540988439 +0000
committer Tobias Klauser <tobias.klauser@gmail.com> 1540996558 +0000

unix: avoid index out of range in *setxattr on BSD

Passing an empty data []byte to Fsetxattr/Setxattr/Lsetxattr leads
to an index out of range panic. Fix this by passing an nil
unsafe.Pointer to the underlying syscall in this case.

Change-Id: I5ef3983c6304c5317ed5b49afc4ed19791864dbb
Reviewed-on: https://go-review.googlesource.com/c/146198
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>