intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

3 files changed, 63 insertions, 0 deletions

diff --git a/util/generic/fuzz/vector/main.cpp b/util/generic/fuzz/vector/main.cpp
new file mode 100644
index 0000000000..0a0293f795
--- /dev/null
+++ b/util/generic/fuzz/vector/main.cpp
@@ -0,0 +1,47 @@
+#include <util/generic/vector.h>
+#include <util/stream/mem.h>
+
+template <class T>
+static inline T Read(IInputStream& in) {
+    T t;
+
+    in.LoadOrFail(&t, sizeof(t));
+
+    return t;
+}
+
+extern "C" int LLVMFuzzerTestOneInput(const ui8* data, size_t size) {
+    TMemoryInput mi(data, size);
+
+    try {
+        TVector<ui16> v;
+
+        while (mi.Avail()) {
+            char cmd = Read<char>(mi);
+
+            switch (cmd % 2) {
+                case 0: {
+                    const size_t cnt = 1 + Read<ui8>(mi) % 16;
+
+                    for (size_t i = 0; i < cnt; ++i) {
+                        v.push_back(i);
+                    }
+
+                    break;
+                }
+
+                case 1: {
+                    if (v) {
+                        v.pop_back();
+                    }
+
+                    break;
+                }
+            }
+        }
+    } catch (...) {
+        // ¯\_(ツ)_/¯
+    }
+
+    return 0; // Non-zero return values are reserved for future use.
+}
diff --git a/util/generic/fuzz/vector/ya.make b/util/generic/fuzz/vector/ya.make
new file mode 100644
index 0000000000..b8614f6411
--- /dev/null
+++ b/util/generic/fuzz/vector/ya.make
@@ -0,0 +1,13 @@
+FUZZ()
+
+OWNER(
+    pg
+    g:util
+)
+SUBSCRIBER(g:util-subscribers)
+
+SRCS(
+    main.cpp
+)
+
+END()
diff --git a/util/generic/fuzz/ya.make b/util/generic/fuzz/ya.make
new file mode 100644
index 0000000000..dc60b12a0c
--- /dev/null
+++ b/util/generic/fuzz/ya.make
@@ -0,0 +1,3 @@
+RECURSE(
+    vector
+)