From 9f8dd8cff8abc294b2c46af80c77788a73416ebf Mon Sep 17 00:00:00 2001
From: Matthias Andree <matthias.andree@gmx.de>
Date: Sat, 1 Jul 2023 13:41:26 +0200
Subject: [PATCH] Fix XMPUtils::ConvertToInt64 sscanf() type

This function uses sscanf() with "%lld" or "%llx" to
parse a string to an integer. However, nothing guarantees
that sizeof(XMP_Int64) == sizeof(long long); the latter
is what sscanf will fill with either of these format strings,
to avoid memory corruption.

Use a long long to match the sscanf size, and let the return statement
cast it to XMP_Int64.
---
 xmpsdk/src/XMPUtils.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xmpsdk/src/XMPUtils.cpp b/xmpsdk/src/XMPUtils.cpp
index 89afd3d62d..9f9ec0bb15 100644
--- a/xmpsdk/src/XMPUtils.cpp
+++ b/xmpsdk/src/XMPUtils.cpp
@@ -1215,7 +1215,7 @@ XMPUtils::ConvertToInt64 ( XMP_StringPtr strValue )
 
 	int count;
 	char nextCh;
-	XMP_Int64 result;
+	long long result;
 
 	if ( ! XMP_LitNMatch ( strValue, "0x", 2 ) ) {
 		count = sscanf ( strValue, "%lld%c", &result, &nextCh );