From 71579306e7c63123426e5bda105e3ab850fbbb20 Mon Sep 17 00:00:00 2001
From: J08nY
Date: Fri, 6 Oct 2023 15:26:06 +0200
Subject: Test under -fsanitize and fix Keccak issue.

---
 pyecsca/codegen/prng/KeccakP-200-compact.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'pyecsca/codegen')

diff --git a/pyecsca/codegen/prng/KeccakP-200-compact.c b/pyecsca/codegen/prng/KeccakP-200-compact.c
index 42c972b..f07bae9 100644
--- a/pyecsca/codegen/prng/KeccakP-200-compact.c
+++ b/pyecsca/codegen/prng/KeccakP-200-compact.c
@@ -169,7 +169,9 @@ void KeccakP200_Permute_18rounds(void *argState)
 
 void KeccakP200_ExtractBytes(const void *state, unsigned char *data, unsigned int offset, unsigned int length)
 {
-    memcpy(data, (UINT8*)state+offset, length);
+    if (length) {
+        memcpy(data, (UINT8*)state+offset, length);
+    }
 }
 
 /* ---------------------------------------------------------------- */
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