1 files changed, 130 insertions, 0 deletions
diff --git a/tests-fuzz/Makefile.am b/tests-fuzz/Makefile.am
new file mode 100644
index 0000000..dcf18a6
--- /dev/null
+++ b/tests-fuzz/Makefile.am
@@ -0,0 +1,130 @@
+AM_CPPFLAGS = \
+	-include $(top_builddir)/src/config.h	\
+	-I$(top_srcdir)/src			\
+	-DCONFIG_DIR='"${config_dir}"'		\
+	-DSTORAGE_DIR='"${storage_dir}"'	\
+	-DRUN_DIR='"${run_dir}"'		\
+	-DSRCDIR=\"$(abs_srcdir)\"
+
+FUZZERS = \
+	fuzz_packet		\
+	fuzz_zscanner		\
+	fuzz_dname_to_str	\
+	fuzz_dname_from_str
+
+check_PROGRAMS = $(FUZZERS)
+
+if HAVE_DAEMON
+# knotd_stdio (AFL)
+check_PROGRAMS += knotd_stdio
+
+nodist_knotd_stdio_SOURCES = knotd_wrap/main.c
+
+knotd_stdio_SOURCES = \
+	knotd_wrap/afl-loop.h			\
+	knotd_wrap/server.c			\
+	knotd_wrap/tcp-handler.c		\
+	knotd_wrap/udp-handler.c
+
+knotd_stdio_CPPFLAGS =				\
+	$(AM_CPPFLAGS)				\
+	$(libkqueue_CFLAGS)			\
+	$(liburcu_CFLAGS)			\
+	$(lmdb_CFLAGS)				\
+	$(systemd_CFLAGS)
+
+knotd_stdio_LDADD = \
+	$(top_builddir)/src/libknotd.la		\
+	$(top_builddir)/src/libknot.la		\
+	$(top_builddir)/src/libdnssec.la	\
+	$(top_builddir)/src/libcontrib.la	\
+	$(top_builddir)/src/libzscanner.la	\
+	$(cap_ng_LIBS)				\
+	$(gnutls_LIBS)				\
+	$(liburcu_LIBS)				\
+	$(lmdb_LIBS)				\
+	$(systemd_LIBS)
+
+BUILT_SOURCES = knotd_wrap/main.c
+CLEANFILES = knotd_wrap/main.c
+knotd_wrap/main.c: $(top_builddir)/src/utils/knotd/main.c
+	@echo '#include "knotd_wrap/afl-loop.h"' > $@
+	@$(SED) -e 's/for (;;)/while (__AFL_LOOP(10000))/' $(top_srcdir)/src/utils/knotd/main.c >> $@
+endif HAVE_DAEMON
+
+# Simple function wrappers (AFL, libFuzzer, tests)
+
+fuzz_packet_SOURCES    = fuzz_packet.c
+fuzz_packet_CPPFLAGS   = $(AM_CPPFLAGS)
+fuzz_packet_LDADD      = \
+	$(top_builddir)/src/libknot.la		\
+	$(top_builddir)/src/libdnssec.la	\
+	$(top_builddir)/src/libcontrib.la	\
+	$(lmdb_LIBS)
+
+fuzz_zscanner_SOURCES  = fuzz_zscanner.c
+fuzz_zscanner_CPPFLAGS = $(AM_CPPFLAGS)
+fuzz_zscanner_LDADD    = \
+	$(top_builddir)/src/libzscanner.la
+
+fuzz_dname_to_str_SOURCES  = fuzz_dname_to_str.c
+fuzz_dname_to_str_CPPFLAGS = $(AM_CPPFLAGS)
+fuzz_dname_to_str_LDADD    = \
+	$(top_builddir)/src/libknot.la		\
+	$(top_builddir)/src/libdnssec.la	\
+	$(top_builddir)/src/libcontrib.la	\
+	$(lmdb_LIBS)
+
+fuzz_dname_from_str_SOURCES  = fuzz_dname_from_str.c
+fuzz_dname_from_str_CPPFLAGS = $(AM_CPPFLAGS)
+fuzz_dname_from_str_LDADD    = \
+	$(top_builddir)/src/libknot.la		\
+	$(top_builddir)/src/libdnssec.la	\
+	$(top_builddir)/src/libcontrib.la	\
+	$(lmdb_LIBS)
+
+if OSS_FUZZ
+
+# CFLAGS, LDFLAGS, etc. are defined by the oss-fuzz environment; just link
+# in the fuzzing engine
+
+fuzz_packet_LDADD         += ${LIB_FUZZING_ENGINE} -lc++
+fuzz_zscanner_LDADD       += ${LIB_FUZZING_ENGINE} -lc++
+fuzz_dname_to_str_LDADD   += ${LIB_FUZZING_ENGINE} -lc++
+fuzz_dname_from_str_LDADD += ${LIB_FUZZING_ENGINE} -lc++
+
+else
+
+if FUZZER
+
+fuzz_packet_CPPFLAGS   += ${fuzzer_CFLAGS}
+fuzz_packet_LDFLAGS     = ${fuzzer_LDFLAGS}
+
+fuzz_zscanner_CPPFLAGS += ${fuzzer_CFLAGS}
+fuzz_zscanner_LDFLAGS   = ${fuzzer_LDFLAGS}
+
+fuzz_dname_to_str_CPPFLAGS += ${fuzzer_CFLAGS}
+fuzz_dname_to_str_LDFLAGS   = ${fuzzer_LDFLAGS}
+
+fuzz_dname_from_str_CPPFLAGS += ${fuzzer_CFLAGS}
+fuzz_dname_from_str_LDFLAGS   = ${fuzzer_LDFLAGS}
+
+# Ensure that fuzzers execute successfully with a benign input
+
+TESTS = check/check_fuzzers.test
+EXTRA_DIST = check/check_fuzzers.test
+
+else
+
+fuzz_packet_SOURCES         += main.c
+fuzz_zscanner_SOURCES       += main.c
+fuzz_dname_to_str_SOURCES   += main.c
+fuzz_dname_from_str_SOURCES += main.c
+
+TESTS = $(FUZZERS)
+
+endif # if FUZZER
+
+endif # if OSS_FUZZ
+
+check-compile: $(check_PROGRAMS)