diff options
Diffstat (limited to 'vendor/golang.org/x/sys/unix/xattr_bsd.go')
| -rw-r--r-- | vendor/golang.org/x/sys/unix/xattr_bsd.go | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/vendor/golang.org/x/sys/unix/xattr_bsd.go b/vendor/golang.org/x/sys/unix/xattr_bsd.go index 663b3779d..f5f8e9f36 100644 --- a/vendor/golang.org/x/sys/unix/xattr_bsd.go +++ b/vendor/golang.org/x/sys/unix/xattr_bsd.go @@ -36,9 +36,14 @@ func xattrnamespace(fullattr string) (ns int, attr string, err error) { func initxattrdest(dest []byte, idx int) (d unsafe.Pointer) { if len(dest) > idx { return unsafe.Pointer(&dest[idx]) - } else { - return unsafe.Pointer(_zero) } + if dest != nil { + // extattr_get_file and extattr_list_file treat NULL differently from + // a non-NULL pointer of length zero. Preserve the property of nilness, + // even if we can't use dest directly. + return unsafe.Pointer(&_zero) + } + return nil } // FreeBSD and NetBSD implement their own syscalls to handle extended attributes |