# Feed this file to script/make-artificial.go

make deflate

# RFC 1951 section 3.2.6 says that for fixed Huffman codes, "distance codes
# 30-31 will never actually occur in the compressed data", and likewise for
# literal/length values 286-287.
#
# This dates from a more innocent time, before widespread concerns about
# malicious actors deliberately supplying invalid input to probe for security
# vulnerabilities. Upon encountering such input, a robust decoder shouldn't
# enter an internally inconsistent state.
#
# In terms of the Wuffs implementation (and error message convention), we
# should return an error, as it is indeed invalid input, but we shouldn't
# return an "internal error".
blockFixedHuffman (final) {
	len 3 distCode 31
}