From 15328aaa9ff7ffe4c47138687a25e77e41be15df Mon Sep 17 00:00:00 2001
From: Kevin Backhouse <kevinbackhouse@github.com>
Date: Sat, 19 Mar 2022 18:12:10 +0000
Subject: [PATCH] Credit to OSS-Fuzz:
 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=45291 Use std::round()
 to handle fractions correctly.

---
 include/exiv2/value.hpp      |   3 ++-
 test/data/issue_2160_poc.jpg | Bin 0 -> 20 bytes
 2 files changed, 2 insertions(+), 1 deletion(-)
 create mode 100644 test/data/issue_2160_poc.jpg

diff --git a/include/exiv2/value.hpp b/include/exiv2/value.hpp
index 27690e50..051050ab 100644
--- a/include/exiv2/value.hpp
+++ b/include/exiv2/value.hpp
@@ -13,6 +13,7 @@
 #include <cstring>
 #include <iomanip>
 #include <map>
+#include <cmath>
 
 // *****************************************************************************
 // namespace extensions
@@ -1251,7 +1252,7 @@ class ValueType : public Value {
     const auto v = value_.at(n);
     if (static_cast<decltype(v)>(std::numeric_limits<I>::min()) <= v &&
         v <= static_cast<decltype(v)>(std::numeric_limits<I>::max())) {
-      return static_cast<I>(v);
+      return static_cast<I>(std::round(v));
     } else {
       return 0;
     }
diff --git a/test/data/issue_2160_poc.jpg b/test/data/issue_2160_poc.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..5716ff41cd15aadf653e678b01b34a076b21159f
GIT binary patch
literal 20
bcmZQzVBpCLP*C9IYUg5LVBp9qFv<V`8YTlP

literal 0
HcmV?d00001