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| author | weidai <weidai11@users.noreply.github.com> | 2010-08-03 20:28:10 +0000 |
|---|---|---|
| committer | weidai <weidai11@users.noreply.github.com> | 2010-08-03 20:28:10 +0000 |
| commit | 79ed03344be6875ea9c78096d3ffe5546391afb5 (patch) | |
| tree | 3df3c3c44c434984ff088817f72ed4ed3c26fd30 /iterhash.cpp | |
| parent | 05e42a01d9511f9122c21f615dba142db17f4523 (diff) | |
| download | cryptopp-git-79ed03344be6875ea9c78096d3ffe5546391afb5.tar.gz | |
fix memcpy with same src and dest (Peter Klotz)
Diffstat (limited to 'iterhash.cpp')
| -rw-r--r-- | iterhash.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/iterhash.cpp b/iterhash.cpp index 478950c9..1e31e9fb 100644 --- a/iterhash.cpp +++ b/iterhash.cpp @@ -66,7 +66,8 @@ template <class T, class BASE> void IteratedHashBase<T, BASE>::Update(const byte } while (len >= blockSize); } - memcpy(data, input, len); + if (len && data != input) + memcpy(data, input, len); } template <class T, class BASE> byte * IteratedHashBase<T, BASE>::CreateUpdateSpace(size_t &size) |