Fuzzing for map fields

protobuf-fuzz/fuzz/Cargo.toml

@@ -39,3 +39,11 @@ path = "fuzz_targets/repeated.rs"
 [[bin]]
 name = "repeated_read"
 path = "fuzz_targets/repeated_read.rs"
+
+[[bin]]
+name = "map"
+path = "fuzz_targets/map.rs"
+
+[[bin]]
+name = "map_read"
+path = "fuzz_targets/map_read.rs"

protobuf-fuzz/fuzz/fuzz_targets/map.rs

@@ -0,0 +1,7 @@
+#![no_main]
+#[macro_use] extern crate libfuzzer_sys;
+extern crate protobuf_fuzz;
+
+fuzz_target!(|data: &[u8]| {
+    protobuf_fuzz::fuzz_target_map(data)
+});

protobuf-fuzz/fuzz/fuzz_targets/map_read.rs

@@ -0,0 +1,7 @@
+#![no_main]
+#[macro_use] extern crate libfuzzer_sys;
+extern crate protobuf_fuzz;
+
+fuzz_target!(|data: &[u8]| {
+    protobuf_fuzz::fuzz_target_map_read(data)
+});

protobuf-fuzz/src/lib.rs

@@ -38,3 +38,11 @@ pub fn fuzz_target_repeated(bytes: &[u8]) {
 pub fn fuzz_target_repeated_read(bytes: &[u8]) {
     test_read::<all_types_pb::TestTypesRepeated>(bytes);
 }
+
+pub fn fuzz_target_map(bytes: &[u8]) {
+    test_bytes::<all_types_pb::TestTypesMap>(bytes);
+}
+
+pub fn fuzz_target_map_read(bytes: &[u8]) {
+    test_read::<all_types_pb::TestTypesMap>(bytes);
+}