From cfdbfa6b2cc27ae5b98c5f27599bbc0fc6a104c1 Mon Sep 17 00:00:00 2001
From: Shea Levy <shea@shealevy.com>
Date: Wed, 14 Mar 2018 23:53:43 -0400
Subject: Catch more possible instances of passing NULL to memcpy.

Actually fixes #1976.
---
 src/libutil/hash.cc | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/libutil/hash.cc')

diff --git a/src/libutil/hash.cc b/src/libutil/hash.cc
index 75e476755..150995f55 100644
--- a/src/libutil/hash.cc
+++ b/src/libutil/hash.cc
@@ -191,6 +191,7 @@ Hash::Hash(const std::string & s, HashType type)
         auto d = base64Decode(std::string(s, pos));
         if (d.size() != hashSize)
             throw BadHash("invalid base-64 hash '%s'", s);
+        assert(hashSize);
         memcpy(hash, d.data(), hashSize);
     }
 
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