Add hoextdown (#1430)

hoextdown/Dockerfile

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+# Copyright 2018 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+FROM gcr.io/oss-fuzz-base/base-builder
+MAINTAINER kjclev@gmail.com
+RUN apt-get update && apt-get install -y make autoconf automake libtool
+RUN git clone --depth 1 https://github.com/kjdev/hoextdown.git hoextdown
+WORKDIR hoextdown
+COPY build.sh *.options *.dict $SRC/

hoextdown/build.sh

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+#!/bin/bash -eu
+# Copyright 2018 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+# build project
+make -j$(nproc) all
+
+# build fuzzers
+$CC $CFLAGS -c -std=c99 -Isrc \
+    "$SRC/hoextdown/test/hoedown_fuzzer.c" -o $WORK/hoedown_fuzzer.o
+$CXX $CXXFLAGS -std=c++11 -Isrc \
+    $WORK/hoedown_fuzzer.o -o $OUT/hoedown_fuzzer \
+    -lFuzzingEngine "$SRC/hoextdown/libhoedown.a"
+
+cp $SRC/*.options $OUT/
+cp $SRC/*.dict $OUT/
+
+# build corpus
+mkdir -p corpus
+find $SRC/hoextdown/test -type f -name '*.text' | while read in_file
+do
+  # Genreate unique name for each input...
+  out_file=$(sha1sum "$in_file" | cut -c 1-32)
+  cat "$in_file" >> "corpus/$out_file"
+done
+
+zip -j $OUT/hoextdown_fuzzer_corpus.zip corpus/*

hoextdown/hoextdown.dict

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+asterisk="*"
+attr_generic=" a=\"1\""
+attr_href=" href=\"1\""
+attr_xml_lang=" xml:lang=\"1\""
+attr_xmlns=" xmlns=\"1\""
+backslash="\\"
+backtick="`"
+colon=":"
+dashes="---"
+double_quote="\""
+entity_builtin="<"
+entity_decimal=""
+entity_external="&a;"
+entity_hex=""
+equals="==="
+exclamation="!"
+greater_than=">"
+hash="#"
+hyphen="-"
+indent="  "
+left_bracket="["
+left_paren="("
+less_than="<"
+plus="+"
+right_bracket="]"
+right_paren=")"
+single_quote="'"
+string_any="ANY"
+string_brackets="[]"
+string_cdata="CDATA"
+string_dashes="--"
+string_empty_dblquotes="\"\""
+string_empty_quotes="''"
+string_idrefs="IDREFS"
+string_parentheses="()"
+string_pcdata="#PCDATA"
+tag_cdata="<![CDATA["
+tag_close="</a>"
+tag_doctype="<!DOCTYPE"
+tag_element="<!ELEMENT"
+tag_entity="<!ENTITY"
+tag_notation="<!NOTATION"
+tag_open="<a>"
+tag_open_close="<a />"
+tag_open_exclamation="<!"
+tag_open_q="<?"
+tag_sq2_close="]]>"
+tag_xml_q="<?xml?>"
+underscore="_"

hoextdown/hoextdown_fuzzer.options

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+[libfuzzer]
+dict = hoextdown.dict

hoextdown/project.yaml

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+homepage: "https://github.com/kjdev/hoextdown"
+primary_contact: "kjclev@gmail.com"