From 2e9dd1defa7e27685ff2f5734fbc54d8d0b62b50 Mon Sep 17 00:00:00 2001
From: staphen <staphen@gmail.com>
Date: Tue, 12 Oct 2021 18:57:18 -0400
Subject: [PATCH] Use unsigned char in CornerstoneSave()

---
 Source/items.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Source/items.cpp b/Source/items.cpp
index ea19ead0b..0da160fde 100644
--- a/Source/items.cpp
+++ b/Source/items.cpp
@@ -3540,9 +3540,9 @@ void CornerstoneSave()
 	if (!CornerStone.item.isEmpty()) {
 		ItemPack id;
 		PackItem(&id, &CornerStone.item);
-		const auto *buffer = reinterpret_cast<char *>(&id);
+		const auto *buffer = reinterpret_cast<uint8_t *>(&id);
 		for (size_t i = 0; i < sizeof(ItemPack); i++) {
-			sprintf(&sgOptions.Hellfire.szItem[i * 2], "%02X", buffer[i]);
+			snprintf(&sgOptions.Hellfire.szItem[i * 2], 3, "%02hhX", buffer[i]);
 		}
 	} else {
 		sgOptions.Hellfire.szItem[0] = '\0';