From 43f154f44b838e6b232193ccbd48e5a2e94bdd35 Mon Sep 17 00:00:00 2001
From: Kevin Backhouse <kev@semmle.com>
Date: Tue, 14 May 2019 09:58:42 +0100
Subject: [PATCH] Merge two enforces into one.

---
 src/pngchunk_int.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/pngchunk_int.cpp b/src/pngchunk_int.cpp
index 64a370e5..714b95b4 100644
--- a/src/pngchunk_int.cpp
+++ b/src/pngchunk_int.cpp
@@ -668,8 +668,7 @@ namespace Exiv2 {
         }
 
         long length = (long) atol(startOfLength);
-        enforce(length >= 0, Exiv2::kerCorruptedMetadata);
-        enforce(length <= (eot - sp)/2, Exiv2::kerCorruptedMetadata);
+        enforce(0 <= length && length <= (eot - sp)/2, Exiv2::kerCorruptedMetadata);
 
         // Allocate space
         if (length == 0)