libhtp: fuzz only the C version (#13422)

As the rust version is now part of Suricata repo

Should fix build failure https://issues.oss-fuzz.com/issues/422433464

Author: catenacyber

projects/libhtp/Dockerfile

@@ -17,7 +17,5 @@
 FROM gcr.io/oss-fuzz-base/base-builder-rust
 RUN apt-get update && apt-get install -y make autoconf automake libtool zlib1g-dev liblzma-dev
 RUN git clone --depth 1 https://github.com/OISF/libhtp.git libhtp
-RUN git clone --branch main --depth 1 https://github.com/catenacyber/libhtp-rs.git libhtp-rs
 WORKDIR $SRC
 COPY build.sh $SRC/
-COPY multiple.txt $SRC/

projects/libhtp/build.sh

@@ -16,26 +16,6 @@
 ################################################################################
 
 # build project
-(
-cd libhtp-rs
-export CARGO_BUILD_TARGET="x86_64-unknown-linux-gnu"
-cargo fuzz build -O
-cargo fuzz list | while read i; do
-    # debug for coverage build
-    cp fuzz/target/x86_64-unknown-linux-gnu/release/$i $OUT/ || cp fuzz/target/x86_64-unknown-linux-gnu/debug/$i $OUT/
-done
-if [ "$SANITIZER" = "address" ]
-then
-    export RUSTFLAGS="$RUSTFLAGS -Cpasses=sancov-module -Cllvm-args=-sanitizer-coverage-level=4 -Cllvm-args=-sanitizer-coverage-trace-compares -Cllvm-args=-sanitizer-coverage-inline-8bit-counters -Cllvm-args=-sanitizer-coverage-trace-geps -Cllvm-args=-sanitizer-coverage-prune-blocks=0 -Cllvm-args=-sanitizer-coverage-pc-table -Clink-dead-code -Cllvm-args=-sanitizer-coverage-stack-depth"
-fi
-cat $SRC/multiple.txt | while read i; do
-    git grep $i | cut -d: -f1 | uniq | xargs sed -i -e s/$i/"$i"_rs/;
-done
-# build in release mode to avoid timeouts
-cargo build -r
-cp ./target/x86_64-unknown-linux-gnu/release/libhtp.a ../libhtp-rs.a
-)
-
 cd libhtp
 sh autogen.sh
 ./configure
@@ -45,9 +25,5 @@ $CC $CFLAGS -I. -c test/fuzz/fuzz_htp.c -o fuzz_htp.o
 $CC $CFLAGS -I. -c test/test.c -o test.o
 $CXX $CXXFLAGS fuzz_htp.o test.o -o $OUT/fuzz_htp_c ./htp/.libs/libhtp.a $LIB_FUZZING_ENGINE -lz -llzma
 
-$CC $CFLAGS -I. -c test/fuzz/fuzz_diff.c -o fuzz_diff.o
-$CXX $CXXFLAGS fuzz_diff.o test.o -o $OUT/fuzz_diff ./htp/.libs/libhtp.a ../libhtp-rs.a $LIB_FUZZING_ENGINE -lz -llzma
-
 # builds corpus
 zip -r $OUT/fuzz_htp_seed_corpus.zip test/files/*.t
-zip -r $OUT/fuzz_diff_seed_corpus.zip test/files/*.t

projects/libhtp/multiple.txt

@@ -1,10 +1,9 @@
 homepage: "https://github.com/OISF/libhtp"
-language: rust
+language: c
 primary_contact: "vjulien@openinfosecfoundation.org"
 auto_ccs :
 - "p.antoine@catenacyber.fr"
 - "jish@openinfosecfoundation.org"
-- "todd.mortimer@gmail.com"
 
 sanitizers:
 - address