memwipe: don't call the workhorse for 0 bytes
Some of them don't like it
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@ -50,7 +50,7 @@
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void *memwipe(void *ptr, size_t n)
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{
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if (memset_s(ptr, n, 0, n))
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if (n > 0 && memset_s(ptr, n, 0, n))
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{
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#ifdef NDEBUG
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fprintf(stderr, "Error: memset_s failed\n");
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@ -67,7 +67,8 @@ void *memwipe(void *ptr, size_t n)
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void *memwipe(void *ptr, size_t n)
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{
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explicit_bzero(ptr, n);
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if (n > 0)
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explicit_bzero(ptr, n);
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SCARECROW
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return ptr;
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}
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@ -105,7 +106,8 @@ static void memory_cleanse(void *ptr, size_t len)
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void *memwipe(void *ptr, size_t n)
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{
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memory_cleanse(ptr, n);
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if (n > 0)
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memory_cleanse(ptr, n);
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SCARECROW
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return ptr;
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}
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