Merge branch 'master' of https://github.com/google/oss-fuzz

1 files changed, 51 insertions, 0 deletions

diff --git a/projects/file/magic_fuzzer.cc b/projects/file/magic_fuzzer.cc
new file mode 100644
index 00000000..1f5b5f09
--- /dev/null
+++ b/projects/file/magic_fuzzer.cc
@@ -0,0 +1,51 @@
+// Copyright 2016 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <libgen.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string>
+
+#include <magic.h>
+
+struct Environment {
+  Environment(std::string data_dir) {
+    magic = magic_open(MAGIC_NONE);
+    std::string magic_path = data_dir + "/magic";
+    if (magic_load(magic, magic_path.c_str())) {
+      fprintf(stderr, "error loading magic file: %s\n", magic_error(magic));
+      exit(1);
+    }
+  }
+
+  magic_t magic;
+};
+
+static Environment* env;
+
+extern "C" int LLVMFuzzerInitialize(int* argc, char*** argv) {
+  char* exe_path = (*argv)[0];
+  char* dir = dirname(exe_path);
+  env = new Environment(dir);
+  return 0;
+}
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+  if (size < 1)
+    return 0;
+  magic_buffer(env->magic, data, size);
+  return 0;
+}