1 files changed, 48 insertions, 0 deletions
diff --git a/lib/fuzzing/oss-fuzz/check_build.sh b/lib/fuzzing/oss-fuzz/check_build.sh
new file mode 100755
index 0000000..6523bf3
--- /dev/null
+++ b/lib/fuzzing/oss-fuzz/check_build.sh
@@ -0,0 +1,48 @@
+#!/bin/sh -eux
+#
+# A very simple check script to confirm we still provide binaries
+# that look like the targets oss-fuzz wants.
+#
+# A much stronger check is availble in oss-fuzz via
+# infra/helper.py check_build samba
+#
+
+# oss-fuzz provides an OUT variable, so for clarity this script
+# uses the same.  See build_samba.sh
+OUT=$1
+
+# build_samba.sh will have put a non-zero number of fuzzers here.  If
+# there are none, this will fail as it becomes literally fuzz_*
+
+seeds_found=no
+
+for bin in $OUT/fuzz_*; do
+	# we only want to look at the elf files, not the zips
+	if [ ${bin%_seed_corpus.zip} != $bin ]; then
+		continue
+	fi
+	# Confirm that the chrpath was reset to lib/ in the same directory
+	# as the binary.  RPATH (not RUNPATH) is critical, otherwise
+	# libraries used by libraries won't be found on the oss-fuzz
+	# target host.
+	chrpath -l $bin | grep 'RPATH=$ORIGIN/lib'
+
+	# Confirm that we link to at least some libraries in this
+	# directory (shows that the libraries were found and copied).
+	ldd $bin | grep "$OUT/lib"
+	num_libs=$(ldd $bin | grep -v ld-linux | grep -v linux-vdso | grep -v "$OUT/lib" | wc -l)
+
+	if [ 0$num_libs -ne 0 ]; then
+		echo "some libraries not linked to $ORIGIN/lib, oss-fuzz will fail!"
+		exit 1
+	fi
+
+	if [ -f ${bin}_seed_corpus.zip ]; then
+		seeds_found=yes
+	fi
+done
+
+if [ $seeds_found = no ]; then
+	echo "no seed zip files were found!"
+	exit 1
+fi