This patch came from Slackware and address a change in crypt()'s handling
of an invalid seed, which in the past returned an encrypted string and now
returns a NULL.
[YOCTO #4097] related to tinylogin segfault
(From OE-Core rev: a7f7e6da8383b4bde6d8ce951e5c3c955073c0bd)
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Saul Wold