Merge commit 'ee861bc6cf7ccec4a056443488e7b0860b8b0606' as 'external/unarr'

external/unarr/test/fuzzer.c

@@ -0,0 +1,65 @@
+#include "unarr.h"
+#include <stdio.h>
+
+ar_archive *ar_open_any_archive(ar_stream *stream) {
+  ar_archive *ar = ar_open_zip_archive(stream, false);
+  if (!ar)
+    ar = ar_open_zip_archive(stream, true);
+  if (!ar)
+    ar = ar_open_rar_archive(stream);
+  if (!ar)
+    ar = ar_open_7z_archive(stream);
+  if (!ar)
+    ar = ar_open_tar_archive(stream);
+  return ar;
+}
+
+void read_test(ar_stream *stream) {
+
+  ar_archive *ar = ar_open_any_archive(stream);
+
+  if (!ar) {
+    return;
+  }
+
+  while (true) {
+
+    if (ar_at_eof(ar)) {
+      break;
+    }
+
+    bool ok = ar_parse_entry(ar);
+
+    if (!ok) {
+      break;
+    }
+
+    size_t size = ar_entry_get_size(ar);
+    while (size > 0) {
+      unsigned char buffer[1024];
+      size_t count = size < sizeof(buffer) ? size : sizeof(buffer);
+      if (!ar_entry_uncompress(ar, buffer, count))
+        break;
+      size -= count;
+    }
+  }
+
+  if (!ar_at_eof(ar)) {
+    printf("not reach eof\n");
+  }
+
+  ar_close_archive(ar);
+}
+
+int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+
+  ar_stream *stream;
+
+  stream = ar_open_memory(Data, Size);
+
+  read_test(stream);
+
+  ar_close(stream);
+
+  return 0; // Non-zero return values are reserved for future use.
+}