1 files changed, 28 insertions, 0 deletions
diff --git a/gnu/llvm/lib/Fuzzer/test/MemcmpTest.cpp b/gnu/llvm/lib/Fuzzer/test/MemcmpTest.cpp
new file mode 100644
index 00000000000..c19c95717bb
--- /dev/null
+++ b/gnu/llvm/lib/Fuzzer/test/MemcmpTest.cpp
@@ -0,0 +1,28 @@
+// Simple test for a fuzzer. The fuzzer must find a particular string.
+#include <cstring>
+#include <cstdint>
+#include <cstdio>
+#include <cstdlib>
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+  // TODO: check other sizes.
+  if (Size >= 8 && memcmp(Data, "01234567", 8) == 0) {
+    if (Size >= 12 && memcmp(Data + 8, "ABCD", 4) == 0) {
+      if (Size >= 14 && memcmp(Data + 12, "XY", 2) == 0) {
+        if (Size >= 16 && memcmp(Data + 14, "KLM", 3) == 0) {
+          if (Size >= 27 && memcmp(Data + 17, "ABCDE-GHIJ", 10) == 0){
+            fprintf(stderr, "BINGO %zd\n", Size);
+            for (size_t i = 0; i < Size; i++) {
+              uint8_t C = Data[i];
+              if (C >= 32 && C < 127)
+                fprintf(stderr, "%c", C);
+            }
+            fprintf(stderr, "\n");
+            exit(1);
+          }
+        }
+      }
+    }
+  }
+  return 0;
+}