tree 5090ac2d115e17a71528780ad8efe70b74f907fa
parent b25d5fcdcf4723ca3da8bc69ecc6c52010778f7c
author Mark Adler <zlib@madler.net> 1507862641 -0700
committer Mark Adler <zlib@madler.net> 1507862641 -0700

Avoid an undefined behavior of memcpy() in _tr_stored_block().

Allegedly the behavior of memcpy() is undefined if the source
pointer is NULL, even if the number of bytes to copy is zero.