separate fuzzers into different files (#655)

fuzz/build.sh

@@ -12,3 +12,27 @@ $CXX $CFLAGS $CXXFLAGS \
 
 $CXX $CFLAGS $CXXFLAGS $LIB_FUZZING_ENGINE parse.o \
      -o $OUT/parse
+
+$CXX $CFLAGS $CXXFLAGS \
+     -std=c++17 \
+     -I build/singleheader \
+     -c fuzz/can_parse.cc -o can_parse.o
+
+$CXX $CFLAGS $CXXFLAGS $LIB_FUZZING_ENGINE can_parse.o \
+     -o $OUT/can_parse
+
+$CXX $CFLAGS $CXXFLAGS \
+     -std=c++17 \
+     -I build/singleheader \
+     -c fuzz/idna.cc -o idna.o
+
+$CXX $CFLAGS $CXXFLAGS $LIB_FUZZING_ENGINE idna.o \
+     -o $OUT/idna
+
+$CXX $CFLAGS $CXXFLAGS \
+     -std=c++17 \
+     -I build/singleheader \
+     -c fuzz/url_search_params.cc -o url_search_params.o
+
+$CXX $CFLAGS $CXXFLAGS $LIB_FUZZING_ENGINE url_search_params.o \
+     -o $OUT/url_search_params

fuzz/can_parse.cc

@@ -0,0 +1,23 @@
+#include <fuzzer/FuzzedDataProvider.h>
+
+#include <memory>
+#include <string>
+
+#include "ada.cpp"
+#include "ada.h"
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+  FuzzedDataProvider fdp(data, size);
+  std::string source = fdp.ConsumeRandomLengthString(256);
+  std::string base_source = fdp.ConsumeRandomLengthString(256);
+
+  /**
+   * ada::can_parse
+   */
+  auto base_source_view =
+      std::string_view(base_source.data(), base_source.length());
+  ada::can_parse(source);
+  ada::can_parse(source, &base_source_view);
+
+  return 0;
+}

fuzz/idna.cc

@@ -0,0 +1,21 @@
+#include <fuzzer/FuzzedDataProvider.h>
+
+#include <memory>
+#include <string>
+
+#include "ada.cpp"
+#include "ada.h"
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+  FuzzedDataProvider fdp(data, size);
+  std::string source = fdp.ConsumeRandomLengthString(256);
+  std::string base_source = fdp.ConsumeRandomLengthString(256);
+
+  /**
+   * ada::idna
+   */
+  ada::idna::to_ascii(source);
+  ada::idna::to_unicode(source);
+
+  return 0;
+}

fuzz/parse.cc

@@ -1,4 +1,5 @@
 #include <fuzzer/FuzzedDataProvider.h>
+
 #include <memory>
 #include <string>
 
@@ -83,58 +84,10 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
     out_aggregator->clear_hash();
   }
 
-  /**
-   * ada::can_parse
-   */
-  auto base_source_view =
-      std::string_view(base_source.data(), base_source.length());
-  ada::can_parse(source);
-  ada::can_parse(source, &base_source_view);
-
-  /**
-   * ada::idna
-   */
-  ada::idna::to_ascii(source);
-  ada::idna::to_unicode(source);
-
   /**
    * Node.js specific
    */
   ada::href_from_file(source);
 
-  /**
-   * ada::url_search_params
-   */
-  auto initialized = ada::url_search_params(base_source_view);
-
-  auto search_params = ada::url_search_params();
-  search_params.append(source, base_source);
-  search_params.set(source, base_source);
-  search_params.to_string();
-  if (!search_params.has(base_source)) {
-    search_params.append(base_source, source);
-  }
-  search_params.remove(source);
-  search_params.remove(source, base_source);
-  if (search_params.has(base_source, source)) {
-    search_params.remove(base_source);
-    search_params.remove(base_source, source);
-  }
-
-  auto keys = search_params.get_keys();
-  while (keys.has_next()) {
-    keys.next();
-  }
-
-  auto values = search_params.get_values();
-  while (values.has_next()) {
-    values.next();
-  }
-
-  auto entries = search_params.get_entries();
-  while (entries.has_next()) {
-    entries.next();
-  }
-
   return 0;
 }  // extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {

fuzz/url_search_params.cc

@@ -0,0 +1,52 @@
+#include <fuzzer/FuzzedDataProvider.h>
+
+#include <memory>
+#include <string>
+
+#include "ada.cpp"
+#include "ada.h"
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+  FuzzedDataProvider fdp(data, size);
+  std::string source = fdp.ConsumeRandomLengthString(256);
+  std::string base_source = fdp.ConsumeRandomLengthString(256);
+
+  /**
+   * ada::url_search_params
+   */
+
+  auto base_source_view =
+      std::string_view(base_source.data(), base_source.length());
+  auto initialized = ada::url_search_params(base_source_view);
+
+  auto search_params = ada::url_search_params();
+  search_params.append(source, base_source);
+  search_params.set(source, base_source);
+  search_params.to_string();
+  if (!search_params.has(base_source)) {
+    search_params.append(base_source, source);
+  }
+  search_params.remove(source);
+  search_params.remove(source, base_source);
+  if (search_params.has(base_source, source)) {
+    search_params.remove(base_source);
+    search_params.remove(base_source, source);
+  }
+
+  auto keys = search_params.get_keys();
+  while (keys.has_next()) {
+    keys.next();
+  }
+
+  auto values = search_params.get_values();
+  while (values.has_next()) {
+    values.next();
+  }
+
+  auto entries = search_params.get_entries();
+  while (entries.has_next()) {
+    entries.next();
+  }
+
+  return 0;
+}